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Service, Parts, Operation, Installation & General Manual

1. VA UPPER FLOAT E Z 4 WATER A LEVEL MAGNET C See Ni NY LOWER FLOAT MSS WN LMELLLLALL LAL LLL AM LOW LEVEL SWITCH Normality Open Figure 5 18 Float Assembly Diagram Printed 3 93 SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 The float assembly monitors the water level in the steam generator and controls the water fill valve and water heating circuits accordingly Refer to Figure 5 17 The float assembly is a sealed cylinder containing the float switch assembly The water line at the bottom of the cylinder connects to the bottom of the steam generator The pressure equalizing line at the top of the cylinder connects to the top of the steam generator These two lines accurately maintain the same water level in the float cylinder as in the steam generator Refer to Figure 5 18 The float switch assembly has an outer float which slides along an inner shaft The float chambers of the outer float each contain a small magnet The inner shaft houses two magnetic switches As the floats rise and fall with the water level the magnets cause the switches to open and close The lower float magnet controls the lower float switch the Low Water Cut Off L W C O switch This switch is normally open When the water level in the generator rises to cover the water heating components the magnet closes the L W C O switch allowing heater burner operation During normal operation the L
2. PREPURGE S8660 S8670 ONLY When the S8660 is used in a fan assisted combustion system the combustion air blower starts on a call for heat On proof of airflow the air proving switch closes and energizes the S8660 S8670 When the module is used in an atmospheric system the call for heat energizes the module In either case the module first initiates a 45 sec Delay to allow system prepurge After prepurge the module starts the pilot ignition sequence Fig 11 S8600 S8610 norma operating sequence 12 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 TRIAL FOR IGNITION Pilot Ignition Following prepurge timing S8660 S8670 or on the call for heat S8600 S8610 the module energizes the first main valve operator The first main valve opens which allows gas to flow to the pilot burner At the same time the electronic spark generator in the module produces an over 10 000 volt spark pulse output The voltage generates a spark at the igniter S8600A B S8610A B or igniter sensor S8600F H M S8610F H S8660 S8670 that lights the pilot If the pilot does not light or the pilot flame current is not at least 1 0u A and steady the module will not energize the second main valve and the main burner will not light S8600A F S8610A F will continue to spark as long as the thermostat calls for heat or until the pilot lights Safety Lockout S8600B H S8610B H S8660D 8670D These modules provide 100 pe
3. There are two parts to the SteamCraft 10 Model 24 CGA 10 circuitry the 115 VAC circuits and the 24 VAC circuits The 115 VAC circuit draws power directly from the external supply lines The required characteristics of the external power supply are listed on the Product Identification Plate as described in Chapter 1 The 115 VAC circuit includes all or the electrical components except those of the Gas Burner and Printed Page 84 SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 STEAMCRAFT 10 TIMER CIRCUITS Ignition and Control system The float assembly switches the timer the preheat thermostat and the TIMED MANUAL switch control operation of the 115 VAC components The transformer s secondary supplies 24 VAC power to the Gas Burner and Ignition and Control system In units with the Key Pad Control Panel an additional transformer provides 24 VAC to the electronic timer All model SteamCraft 10 s have either Key Pad Control Panels or Dial Timer Control Panels Key Pad Control Panels have electronic timers Dial Timer Control Panels have mechanical timers Either type of timer controls the steaming cycle when the unit is in the TIMED mode e In units with the electronic key pad timer a 24 VAC transformer supplies power to the timer The compartment thermal switch prevents timer countdown until the compartment temperature rises above 190 F A buzzer within the electronic timer signals the end of timer countdo
4. 2 TIMED MANUAL Switch The TIMED MANUAL switch selects the manual or timed operating mode e MANUAL bottom end of switch selects the manual mode e TIMED top end of the switch selects the timed mode 3 ON OFF switch Atmospheric Models The ON OFF switch controls electric power to the steamer The ON OFF switch is located below the upper cooking compartment controls and enables cooking in both compartments e ON top end of switch energizes the steamer control panels A red indicator on the switch lights and water fills the steam generator Water fills the generator and heats to stand by temperature e OFF bottom end of switch turns the steamer control panel OFF The red indicator goes out and the 3 minute blowdown cycle starts 4 ON OFF switch Pressure Models Only The ON OFF switch controls electric power to the steamer The ON OFF switch is located below the upper cooking compartment controls and enables cooking in both compartments e ON top end of switch energizes the steamer control panels A red indicator on the switch lights and water fills the steam generator e OFF bottom end of switch turns the steamer control panel OFF The red indicator goes out and the 3 minute blowdown cycle starts 5 STEAM switch Pressure Models Only This switch starts the steam generator hearing components After water has filled the generator to the safe operating level the amber indicator in this switch lights The steam ge
5. Cleveland Range SteamCraft 10 Convection Steamer SERVICE MANUAL MODELS 24 CEA 10 amp 24 CGA 10 Printed 3 93 Cleveland Range Inc UNITED STATES CANADA 1333 East 179th St Cleveland Ohio 44110 Phone 216 451 4900 Garland Commercial Ranges Telex 98 0546 FAX 216 481 3782 1177 Kamato Road Mississaugha Ontario Canada L4W1X4 Phone 416 624 0260 FAX 416 624 0623 FOR YOUR SAFETY GAS LEAK INSTRUCTIONS Do not store or use gasoline or other flam Post in a prominent location instructions mable vapors or liquids in the vicinity of this to be followed in the event the user smells or any other appliance gas This information shall be obtained by consulting the local gas supplier For safe and efficient operation of this equipment this manual must be retained by the owner user for future reference PROTECTING WARRANTY COVERAGE The warranty printed to the left specifies the owner user s responsibility for proper installation operation and maintenance of the SteamCraft 10 If these responsibilities are not met toe Limited Warranty and or Extended Limited Warranty coverage may be adversely affected The following table is provided to assist the owner user in meeting these responsibilities In addition the warranty advantages of installing a SteamerGard water treatment system are explained after the table The Warranty Protection Table lists installation operation and maintenance factors that have in
6. The compartment control panels are identical for all models They consist of a timer unit key pad or dial and a Timed Manual switch The steam generator controls are identical for all models except the units with pressurized steam generators The 24 CGA 10 and 24 CEA 10 are atmospheric generator models On these models the ON OFF switch both energizes the unit controls and starts the steam generator water fill and preheating cycles The 24 CGP 10 and 24 CEP 10 are pressure generator models In addition to the ON OFF switch on these models there are also a Steam switch and a Pressure Gage The ON OFF switch energizes the unit controls and starts the steam generator water fill cycle The Steam switch initiates the steam generating cycle The safe and effective operation of any steamer depends upon proper installation use maintenance and repair Operational safety must encompass all of these factors This Operational Safety section outlines the minimum safety policies that should be considered when using one or more SteamCraft 10 s It is assumed that any operational safety program must be tailored to the specific site and use of the equipment Such a program will Page 42 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 pay handsome dividends in equipment life performance and reduced downtime Burn hazards are present in any professional food service operation This is especially so when ste
7. YES NO em Check heater assembly according to component test CT 23 NOTE If heater assembly checks out OK electrically steam output can be greatly reduced by increased scale build up on one or both heater elements Descale the boiler according to the procedure in Chapter 4 2 Check to make sure all four steam nozzles are emitting steam If not check associated plumbing for blockage IT 3 7 Are there droplets of water forming at any of the four steam nozzles YES NO ap Check dryer element according to component test CT 24 Repeat all of the Phase 3 tests through IT 3 5 for the lower compartment 1 Set the upper compartment TIMED MANUAL switch to the TIMED position 2 Cool the water in the steam generator to preheat temperature by running a partial blowdown cycle a Set the ON OFF switch to the OFF position for one minute This will drain about a half of the hot water from the steam generator b Set the ON OFF switch back to the ON position This will replace the drained hot water with cool water 3 Perform Phase 3 testing using the lower compartment control panel Phase 3 testing is complete Proceed to Phase 4 testing Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 119 PHASE4 TESTING This phase of testing pertains to the components associated with timer controlled steaming functions After completing Phase 3 Testing verify that the follow
8. ately refer to the posted gas leak instructions The posted instructions are provided by the local supplier and supersede any other instructions Until the leak is stopped observe the following precautions in addition to the posted instructions e Do not light or start any appliance e Do not touch any electrical switch e Do not use any phone in the building e Immediately call the gas supplier from a phone away from the building Follow the gas supplier s instructions e If the gas supplier cannot be reached can the fire department Manual mode is used for a continuous supply of steam for long periods or if the required cooking time is unknown and frequent inspection is required Cooking time is controlled by the operator A specific steaming time is set on the timer When the time is set steaming in the cooking compartment begins Steaming stops when the timer counts down to zero Steam flow is controlled by the timer Although the timer does not control steaming in manual mode it can be used as a conventional cooking timer The timer counts down the set period and sounds the buzzer but IT DOES NOT TURN THE STEAM OFF AFTER THE ALARM SOUNDS Page 44 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Steam Generator BlowDown MAIN DISCONNECT SWITCH Blowdown is the process of removing loose sediment and soft scale from the steam generator before it hardens The SteamCraft 10 employs a c
9. 1 4 H x 1 8 MPT 90 Brass 06230 Fitting Compartment Drain 14297 Nipple 1 8 x 1 1 2 Brass 104838 Coupling Full 1 8 NPT Brass 14555 Nozzle Spray 1 8 Full Jet Cone Spray Brass 105783 Tee 1 X 1 X 1 14 Black Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 Page 182 SteamCraft 10 Service Manual Chapter 7 Figure 7 12B Condenser and Drainage Systems Model 24 CGA 10 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 183 Figure 7 12B Condenser And Drainage Systems e Model 24 CGA 10 06237 Fitting Hose Barb 1 2 H x 1 2 MPT 22149 Valve Check 1 2 Brass 14324 Nipple 1 2 x Close Brass 565191 Filling Hose Barb 1 H x 1 w Hole 101394 Fitting Comp Tee 1 4 T x 1 8 MPT x 1 4 T 100223 Tee 1 x 1 2x 1 Black 05253 Elbow Street 90 1 2 Brass 14481 Fitting Hose Barb 1 H x 1 MPT 22221 Valve Solenoid 1 2 15 PSI 104381 Fitting Hose Barb 1 4 H x 1 4 MPT 06241 Fitting Hose Barb 3 4 H x 1 2 MPT 05223 Elbow Street 45 1 2 Brass 085050250 Hose 3 4 ID x 2 5 Long 06240 Fitting Hose Barb 3 4 H x 3 4 MPT 14373 Nipple 1 x 3 Black 14369 Nipple 1 x Close Black 13252 Manifold Drain Base 03058 Cap Pipe 1 1 2 Black 05292 Elbow Street 90 1 1 2 Brass 105787 Fitting Hose Barb 1 4 H x 1 8 MPT 90 Brass 06230 Fitting Compartment Drain 14297 Nipple 1 8 x 1 1 2 Brass 104838 Coupling Full
10. 1 8 NPT Brass 14555 Nozzle Spray 1 8 Full Jet Cone Spray Brass 105783 Tee 1 X 1 X 1 14 Black 1054692200 Hose EPDM Black 1 ID x 22 Long 1054694400 Hose EPDM Black 1 ID x 44 Long 05235 Elbow Street 1 4 90 Brass 104048 Fitting Hose Barb 1 2 H x 1 4 MPT Brass 1058451200 Hose 1 2 ID x 3 4 OD x 12 Long 03204 Clamp Hose Worm Drive 812 x 1 50 Dia S S VD Gi JA Ch L n P L HA ra Een en e ee LE our CH 16 J Cleveland Range Inc Printed 3 93 IWVIOUGIS 24 UEA 1U alld kaf IM ole diNUrdll 1U SENICE Widiudl Ulldapler rage 104 Figure 7 13 Steam Plow Control Components Model 24 CEP 10 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter7 Page 185 Figure 7 13 Steam Flow Control Components Model 24 CEA 10 06240 Fitting Hose Barb 3 4 H x 3 4 MPT 20208 Tee 3 4 x 1 2 x 3 4 Brass 02623 Bushing Hex 1 2 x 1 4 Brass 14304 Nipple 1 4 x Close Brass 22199 Valve Solenoid Steam Normally Open 104048 Fitting Hose Barb 1 2 H x 1 4 MPT 101207 Trap Thermostatic 1 4 NPT 133012 Manifold Steam Inlet 20206 Tee 3 4 Brass o ON o Om kk WO PD CH 14342 Nipple 3 4 x Close Brass 105965 Valve Solenoid 3 4 NPT 0 4 PSI 133011 Manifold Steam Inlet Closed web sch GO NM 05280 Elbow Street 90 3 8 Brass 100746 Fitting Hose Barb 1 2 H x 3 8 MPT 05231 Elbow Street 90 3 4 Brass 2 2 2 3 2
11. 11 12 steamer and must not be connected to the drain lines of any other equipment The drain line must be free air vented If the line empties into a floor drain there must be a one inch minimum clearance between me drain line and the floor drain openings The floor drain must not be located under the body of the unit To maintain proper operation and full warranty coverage the unit must be level from to back and side 10 side The flue at the back of the gas fired units must be ventilated as specified by local and national codes Figure 2 1 Schematic Installation Diagram Page 10 Charter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 PREPARATION FOR INSTALLATION Protecting The SteamCraft 10 Electric Power Requirements Gas Supply Requirements Exhaust Hood Requirements All Models Select and prepare the SteamCraft 10 operating location before permanently positioning the unit Protect the unit and packaged components during site preparation Do not select the operating location or start installation before checking the electric power gas and water quality requirements to assure proper drainage ventilation and safety Do not remove the SteamCraft 10 from its shipping canon until just before installation If me shipping canon has already been removed and discarded refer to Unpacking and Inspection on page 18 and inspect me shipment Remove the SteamCraft 10 and components from the i
12. 2 8 8 EEU eier Se O Om A 14661 Nut Compression 1 4 Tube 1058463700 Hose 3 4 ID x 1 1 8 OD x 37 Long 1058462300 Hose 3 4 ID x 1 1 8 OD x 23 Long N 1058451300 Hose 1 2 ID x 3 4 OD x 13 Long 105848 Clamp Plastic 3 4 OD Hose 105047 Clamp Plastic 1 1 8 OD Hose Cleveland Range Inc Printed 3 93 Page 186 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 14 Gas Control Valve and Piping Model 24 CGA 10 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 187 ae 7 14 Gas Control Valve and Piping Model 24 CGA 10 05252 Elbow Street 90 1 2 Black 21302 Union 1 2 Black 14323 Nipple 1 2 x Close Black 105782 Valve Gas Regulator Natural Gas 1057821 Valve Gas Regulator Liquid Propane 14343 Nipple 3 4 x Close Black 21305 Union 3 4 Black 105541 Tee Street 3 4 Black 16600 Plug 3 4 Black Cleveland Range Inc Printed 3 93 raye 156 ol diNUldil 1U SEVICE WidiUdl Ulldpler IWIOUEIS kan TU all 24 UUA 1U 900090090 0 0097099 099099000 KI RANG Figure 7 15 Gas Combustion Blower Chamber Model 24 CGA 10 Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 189 ae 7 15 Gas Combustion Blower Chamber Model 24 CGA 10 105872 Burner Air Box Weld Assembly 105950 Manifold Assembly Gas 125 000 BTU Boiler 105705 Orifice Gas Natural Vertical B
13. 2 Press the TIMED MANUAL switch to TIMED Set timer to 0 3 After completion of blowdown 3 minutes turn off power at the main disconnect switch 4 Allow time for the steam generator and compartment to cool down 5 Access steam generator descaling port e Electric Atmospheric Model 24 CEA 10 a Remove right side access panel see Figure 2 7 b Remove the 3x3 inch cover plate See Figure 4 1 Figure 4 1 Steam Generator Cover Plate EE Cah 1 e Electric Pressure and All Gas Models 24 CEP 10 24 CGA 10 and 24 CGP 10 a On gas models loosen mounting screws of exhaust vent and remove exhaust vent Cleveland Range Inc Printed 3 93 Page 66 Chapter 4 SteamCraft 10 Service Manual Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 1C b Remove 1 2 inch pipe plug from the top of the steam generator See Figure 4 2 WARNING DEATH BURNS OR ELECTRIC SHOCK can occur by touching electrical components and wires inside the access cover when the main disconnect switch is in the on position Use extreme caution when performing this procedure 6 Turn the main disconnect switch to the on position check that water supply valves are open and turn the steamer on by pressing the ON OFF switch to ON The red switch indicator turns ON and the generator begins to fill 7 When the steam generator stops filling pour phosphoric acid into the water in the Figure 4 2 Steam Generator Pipe Plug Electnc Pressure steam generat
14. 24 CEP 10 e Cleveland Range designs and manufactures equipment ID comply with applicable standards for manufacturers Included among these certification agencies are UL A G A ASME N Bd NSF CSA CGA ETL and others e This equipment is designed and certified for safe operation only when permanently installed in accordance with local and or national codes Many local codes exist and it is the responsibility of the owner and installer to comply with these codes e In no event shall the manufacturer assume any liability for damage or injury resulting from installations which are not in strict compliance with the Installation Instructions and the codes cited above Specifically the manufacturer will not assume any liability for damage or injury resulting from improper installation of equipment including but not limited to temporary or mobile installations INSTALLATION OVERVIEW SteamCraft 10 installation is presented in two parts preparation and instal lation Table 2 1 and Figure 2 1 provide an overview of installation process Figure 2 1 Schematic Installation Diagram illustrates the utility lines and connections required to install the SteamCraft 10 The Dimension Drawings Figure 2 2 show the required utility connection points dimensions and clearances for each of the SteamCraft 10 models Table 2 1 Installation Check List outlines the overall installation process by listing in recommended sequence the major tasks t
15. As soon as the dial is released the steam generating cycle starts Observe the following steam generating functions a The dial timer immediately begins counting down to zero Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 39 b The condenser solenoid clicks open and condenser flow starts A Figure 2 19 Steam Generator Controls Pressure Units Only C small stream of water flows from the drain pipe If the float cylinder water level drops below the initial fill level the water fill valve opens and fills the generator A dull roaring sound indicates the heater is working and the unit is beginning to generate steam As the unit generates steam the water level fluctuates and a clicking sound is heard as the solenoid opens and closes the fill valve The level in the float cylinder rises and falls about 1 4 inch as the fill valve operates When the timer counts down to zero the heating system turns off the condenser flow stops and the buzzer sounds for 3 seconds After about 30 seconds steam stops entering the cooking compartment 6 Turn the SteamCraft 10 off by pressing the OFF bottom end of the ON OFF switch The red indicator on the switch turns off immediately and the automatic blowdown cycle starts DO NOT turn off the power at the main disconnect switch until blowdown is complete The cycle takes about 3 minutes 7 When blowdown is complete turn the stea
16. Check the wiring diagram furnished by the appli ance manufacturer if available for circuits differing from the wiring hookups shown Carefully follow any special instructions affecting the general procedures outlined below Disconnect the power supply before making wiring connections to prevent electrical shock or equipment damage IMPORTA 1 As shown in the wiring diagrams a common groun dis required on a The pilot burner mounting bracket and b The GND Burner terminal on the ignition module Failure to user the GND Burner terminal may result in intermittent loss of spark and or loss of flame current sensitivity 2 Make sure the transformer has adequate VA The ignition module requires at least 0 2 A at 24 Vac Add the current draws of all other devices in the control circuit including the pilot and main valves in the gas control and multiply by 24 to determine the total VA requirement of these components Add this total to 4 8 VA for the ignition module The result is the minimum transformer VA rating Use a Class II transformer if replacement is required Connect Ignition Cable Use Honeywell ignition cable or construct an ignition cable that conforms to suitable national standards such as Underwriters Laboratories Inc See Tables 2 and 3 TABLE 2 HONEY WELL PREASSEMBLED IGNITION CABLES UL STYLE 3257 CABLE PART NUMBER LENGTH 394800 30 MODULE END IGNITER END 1 4 in quick Raab connect
17. Model 24 CGA 10 Sheet 1 of 4 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 13 er ENIN ka ke ke be ke bei Kei ki ei Kei Kei Fc Bactricel Supply ri bron LST Bem Sin Fue Gas Exhoust from Boier CE wate Supply tor Condermer 3 8 Dic PS iiet for Bee Deiming Souten WY De Diverter if required Se ES E E ey D te Sep TS 19am Dic 10 12 x 20 x 2 1 2 Cofeteric Pors e D 17 2 C Cofetero Fas e 6 17 x 20 1 Cofetern Pos Marweocturey fut be nothes d ont wl bc em tee 2000 f erter Figure 2 2 SteamCrafi 10 Dimensions and Clearances Model 24 CGP 10 Sheet 2 of 4 Cleveland Range Inc Printed 3 93 Page 14 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 7 BC 10 12 x 2 x 2 1 2 Cotetenc Pons or D 1 x 2 z T Cofetero Pos or 6 12 x WM tr Coet Pe wate Sopply for Condenser 3 8 Dio PS Sr ta es lr aaeei conn ZOEY 240 SEN ON AEN 20 NOT RECOMMENDED ZIRE SEN ASON Figure 2 2 SteamCraft 10 Dimensions and Clearances Model 24 CEA 10 Sheet 3 of 4 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 15 10 1 x 20 x 2 1 7 Coteterc Poms or D 17 x Wx T Cofetero Pos e 6 12 1
18. NOTE The red ON OFF switch light turns on The fill valve opens and the drain valve closes Water begins to fill the steam generator After a few minutes water appears in the bottom of the float cylinder as the water level in the steam generator rises IT 2 1 Does the red ON OFF switch indicator light YES NO a Test the ON OFF switch according to component test CT 5 4 IT 2 2 Does water start filling the steam generator ES NO meee Four possible malfunctions can prevent water from filling the steam generator during the preheat and steaming cycle e The plumbing between the drain valve and fill valve or drain valve and steam generator is blocked e The operational water float upper switch is malfunctioning e The fill solenoid valve is blocked or malfunctioning e The 3 way drain valve is blocked or malfunctioning 1 Check the fill solenoid valve and adjoining plumbing for blockage N Cleveland Range Inc Check the drain solenoid valve and adjoining plumbing for blockage Printed 3 93 Page 102 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 YES Continued 3 If the plumbing drain and fill valves are not blocked test the operational water float for continuity through the upper switch according to component test CT 6 NOTE This switch controls operation of the fill solenoid valve during preheat and steaming operations It is normally closed and remains closed until float water level
19. Some valves use an arrow to indicate the proper flow direction Valves installed backwards do not work correctly Before testing valve operation verify that water steam drainage etc supply is available to check flow through the valve For example When testing a water control solenoid valve first check that external supply valves are open When power is first applied to a properly operating solenoid an audible click can be heard While energized the solenoid hums at low volume The click sound usually indicates a properly operating solenoid Energized solenoids generate a magnetic field that can be detected with a steel screw driver Note that some stainless steels brass and aluminum alloys are not magnetic and will not be effected by the magnetic field Low voltage below 90 VAC will cause a solenoid to hum loudly or chatter e Check for loose connections to the solenoid e Check power supply to the solenoid for the proper voltage for the model being tested Refer to the schematic diagram in Chapter 7 Normally Open and Normally Closed Valves and Contacts Whether troubleshooting a system or a component it is important to know if the solenoid valve is normally open or normally closed e A normally open valve or contact is open until the solenoid is energized It closes when the solenoid is energized and remains closed while the solenoid remains energized It opens when the solenoid is de energized e A normally closed valve is c
20. WARNING INJURY AND EQUIPMENT DAMAGE could result from improper lifting Refer to the appropriate dimension drawing and check the weight of the unit being installed Use enough workers with experience lifting heavy equipment to place the SteamCraft 10 on the supporting surface Page 20 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Figure 2 5 Slide Rack Installation Install and Connect the Free Air Vented Drain Lines 4 Move the SteamCraft 10 into position 5 Check the adjusting foot of the leg in the highest corner marked in step 3 The foot should be fully retracted and provide a 6 inch clearance under the unit 6 Using a level adjust the other three legs until the Steam Craft 10 is level both front to back and side to side 7 After the Steam Craft 10 has been positioned and leveled install the slide racks as described below Install Slide Racks 1 Refer to Figure 2 5 There are two slide racks for each cooking compartment Each rack has four loops two at the top and two at the bottom Hold the slide rack so the ends of the hanger loops point down as shown in the figure 2 Slide one rack into the compartment with loops toward the compartment wall and mounting pins 3 Hook the loops over the top and bottom pins 4 Repeat steps through 3 for each of the other racks The drain outlet must be free air vented to equalize the pressure in the Steam Craft 10 Steamer with t
21. When the unit is turned on the drain valve is open and the water fill valve is closed B Filling the Steam Generator When the solenoid is energized it closes the valve In this position the valve directs water flow into the steam generator The water fill valve opens to fill the generator C 3 Minute Blowdown During blowdown the drain valve opens to direct water flow to the drain manifold The water fill valve also opens The supply water rushes through the drain valve and pulls the water from the generator This induced flow and turbulence flushes sediment from the steam generator FILLVALVE B Filling CYCLES TO i MAINTIAN ON OFF is ON WATER LEVEL STEAM GENERATOR FILLING DRAIN MANIFOLD mu C Blowdown VALVE ON OFF is OFF Cleveland Range Inc VIGOROUS DRAINING OF STEAM GENERATOR DRAIN MANIFOLD Figure 5 13 Drain Valve Functions Printed 3 93 Page 82 SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 Shutdown Steam Generator and Float Cylinder Rinse Functions Refer to Figure 5 14 Typically when the Steam Craft 10 is shut down at the end of a shift only the ON OFF switch is set to OFF The main power switch remains ON During such a shutdown the steam generator and float rinse cycle runs automatically Switching the ON OFF switch to OFF removes power from most of the steamer circuit components and activates the 3 minute tim
22. b Test the high temperature limit switch c Test the float low level switch d Test the TIMED MANUAL switch 5 Set the voltmeter to the 500 VAC scale Refer to Figure 6 41 and check the voltage across the contact pairs If the meter reads 230 VAC across one or more contact pairs replace the heater contactor e If the meter reads 0 VAC across all contact pairs the fault is not in the heater contactor a Check the wires and connections from the contact pairs to the heater elements for continuity and secure connections Replace or repair faulty wiring and connections b Check the wires and connections from the terminal block to the contacts for continuity and secure connections Replace or repair faulty wiring and connections c Test heater elements Cleveland Range Inc Printed 3 93 Page 144 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 CT 22 High Temperature Limit Switch Model 24 CEA 10 Refer to Figure 6 42 Set the voltmeter to the 250 VAC scale 2 Set the ON OFF switch to the ON position 3 Before proceeding to step 4 wait until water fills the float cylinder to normal operating level 4 Set TIMED MANUAL switch to MANUAL Check that the heater contactor energizes 120 VAC from the heater contactor brown wire connection to the heater contactor white brown wire connection on the top compartment and 120 VAC from the heater contactor yellow wire connection to the heater contactor whit
23. e Note the keyhole slots on the door and the retaining pins on the gasket assembly Grasp the gasket assembly at the sides and lift up and towards you to remove the assembly e Clean all surfaces of the gasket assembly as well as the inside of the door by wiping with a damp cloth e Replace the gasket assembly by sliding the retaining pins into the keyhole slots Either long edge of the gasket assembly can be r positioned at the top a j i Ba 6 Replace the cleaned slide racks ae 7 Wipe the exterior with a damp cloth only NEVER HOSE DOWN THE 1 ae STEAMER Electrical components inside the unit will not function correctly if wet or damp Figure 3 9 Door Gasket Assembly 8 After cleaning leave the steamer door open until the next steamer operation This prevents compartment odor buildup and increases gasket life Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 4 Page 63 CHAPTER 4 INTRODUCTION MAINTENANCE RECORDS DAILY MAINTENANCE Blowdown Steam Generator Clean SteamCraft 10 WEEKLY MAINTENANCE Clean Drain Cleveland Range Inc PREVENTATIVE MAINTENANCE AND TROUBLESHOOTING Maintenance on the SteamCraft 10 must be performed on a regular basis to keep the unit running properly Follow the maintenance instructions in this chapter and problems will be kept to a minimum As with any preventative maintenance schedule the frequency of steamer maintenance may need to b
24. 00 ten minutes and zero seconds 5 Press the START STOP key and the timed steam generating cycle starts Observe the following steam generating functions a The timer display changes to PAUS until the cooking compartment reaches cooking temperature When it does the timer begins counting down to zero The condenser solenoid clicks open and condenser flow starts A small stream of water flows from the drain pipe If the float cylinder water level drops below the initial fill level the water fill valve opens and fills the generator When the float cylinder water level is above one inch the heater coil turns on A dull roaring Page 38 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Figure 2 18 Dial Timer Control Panel sound indicates the heater is working and the unit is beginning to generate steam d As the unit generates steam the water level fluctuates and a clicking sound is heard as the solenoid opens and closes the fill valve The level in the float cylinder rises and falls about 1 4 inch as the fill valve operates e When the timer counts down to zero 00 00 The heating system turns off The condenser flow stops and the buzzer sounds continuously Press the START STOP key to silence the buzzer f After about 30 seconds steam stops entering the cooking compartment 6 Turn the SteamCraft 10 off by pressing the OFF bottom end of the ON OFF switch The red indicator
25. 12 34 3 START STOP Key This key starts and stops the timer In TIMED mode the steaming functions are linked to the timer In MANUAL mode the steaming functions are independent of the timer 4 CLEAR Key This key resets the timer to zero 00 00 after it has been stopped The timer must be zeroed by pressing this key before a new time can be set 5 TIMED MANUAL Switch The TIMED MANUAL switch selects the manual or timed operating mode e MANUAL bottom end of switch selects the manual mode e TIMED top end of the switch selects the timed mode 6 ON OFF switch Atmospheric Models The ON OFF switch controls electric power to the steamer The ON OFF switch is located below the upper cooking compartment controls and enables cooking in both compartments e ON top end of switch energizes the steamer control panels A red indicator on the switch lights and water fills the steam generator and heats to stand by temperature e OFF bottom end of switch rums the steamer control panel OFF The red indicator goes out and the 3 minute blowdown cycle starts 7 ON OFF switch Pressure Models Only The ON OFF switch controls electric power to the steamer The ON OFF switch is located below the upper cooking compartment controls and enables cooking in both compartments Page 46 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 COOKING OPERATIONS KEY PAD CONTROL PANEL Summary of Cooking
26. 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 164 e A A A i A x Saga VASANN Rare K Figure 7 8A Electrical Components Assembly Model 24 CEA 10 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 165 Figure 7 8A Electrical Components Assembly Model 24 CEA 10 105871 Panel Electric Control Mount 03509 Contactor 50 AMP 104 120V 02193 Block Terminal 3 Terminals 20535 Transformer 150VA 20478 Timer Solid State 3 Minute 105966 Relay DPDT 115V w Mounting Tabs 106175 Terminal Block Assembly 4 Pole 106123 Screw TORX Slot Pan Head 10 32 x 1 2 106127 Screw TORX Slot Pan Head 6 32 x 1 2 106124 Screw TORX Slot Pan Head 10 32 x 1 1 2 3 4 5 6 7 8 9 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 ice Manual Chapter 7 SteamCraft 10 Serv Page 166 7 8B Electrical Components Assembly Model 24 CGA 10 Figure Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter7 Page 167 Figure 7 8B Electrical Components SE Model 24 CGA 10 105517 Box Electric Weldment 14672 Nut Hex Lock Elastic 10 32 02616 Bushing Insulator HEYCO 20478 Interval Timer 180 Seconds 106124 Screw Slotted Torx 10 32 x 1 00 106127 Screw Slotted Torx 6 32 x 1 2 105990 Terminal Block Assembly 4 Pole 03524 R
27. 80 1 4 ID x 1 2 OD x20 Long 104382 Fitting Hose Barb 1 4 H x 3 8 MPT Brass St Fitting Hose Barb 1 2 H x 3 8 MPT Brass St Elbow Street 90 3 8 Brass Fitting Bulkhead 3 8 NPT x 3 8 NPT Brass Clamp Worm Drive 1 4 25 32 x 5 16 W S S 2 3 4 5 6 7 8 9 1 Cleveland Range Inc Printed 3 93 Page 180 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 12A Condenser And Drainage Systems Model 24 CEA 10 Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 181 Figure 7 12A Condenser And Drainage Systems Model 24 CEA 10 05235 Elbow Street 1 4 90 Brass 104048 Fitting Hose Barb 1 2 H x 1 4 MPT 1058450900 Hose 1 2 ID x 3 4 OD x 9 Long 06237 Fitting Hose Barb 1 2 H x 1 2 MPT 22149 Valve Swing Check 1 2 NPT 14323 Nipple 1 2 x Close Black 02565 Bushing Hex 3 4 x 1 2 Black 20209 Tee 3 4 x 3 4 x 1 2 Black 14327 Nipple 1 2 x 2 Black VD mnt nn E W N Di 22221 Valve Solenoid 1 2 15 PSI 06241 Fitting Hose Barb 3 4 H x 1 2 NPT 104381 Fitting Hose Barb 1 4 H x 1 4 NPT e e Lu N e 14343 Nipple 3 4 x Close Black 21305 Union 3 4 Black 05259 Elbow Street 90 3 4 Black e e O uU A 14481 Fitting Hose Barb 1 H x 1 NPT 13252 Manifold Drain 1 1 2 Black 05292 Elbow Street 90 1 1 2 Black 03058 Cap Pipe 1 1 2 Black 105787 Fitting Hose Barb
28. 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 137 CT 13 Mechanical Timer 1 Set the voltmeter to the 250 VAC scale 2 Set the ON OFF switch to the ON position 3 Set the TIMED MANUAL switch to the MANUAL position Operate the SteamCraft 10 for about 10 minutes or until it is steaming continuously 4 Set the TIMED MANUAL switch to the TIMED position and zero the timer 5 Check for 115 120 VAC across timer terminals L1 T1 and 0 VAC across timer terminal L1 T3 e If the meter reads 115 120 VAC across L1 T1 and 0 VAC across L1 T3 continue this procedure with step 7 If the meter reads 0 VAC across L1 T1 the contacts L1 T1 are shorted within the timer Replace the dial timer e If the meter reads 115 120 VAC across L1 T3 the contacts L1 T3 are open within the timer Replace the dial timer 6 Set the timer dial to 10 minutes Refer to Figure 6 30 Check for 0 VAC across timer terminals L1 T1 and 115 120 VAC across timer terminals L1 T3 e If the meter reads O VAC across L1 T1 and 115 120 VAC across L1 T3 the dial timer is good End this procedure here e If the meter reads 115 120 VAC across L1 T1 replace the dial timer Figure 6 30 Mechanical Dial Timer If the meter reads 0 VAC across L1 T3 replace the dial timer CT 14 amp CT 15 3 Second Timer and Buzzer mechanical timer units only Set the voltmeter to the 250 VAC scale Set the ON OFF
29. MODEL 24 CGA 10 DESCALING PORT UNDER EXHAUST VENT EXHAUST VENT MODEL 24 CGA 10 ONLY MODEL 24 CEA 10 DESCALING PORTS INSIDE SERVICE ACCESS PANEL RIGHT SIDE SERVICE ACCESS PANEL UPPER COOKING COMPARTMENT DOOR DOOR LATCH AIR VENTS UPPER COOKING COMPARTMENT CONTROL PANEL ON OFF POWER SWITCH LOWER COOKING COMPARTMENT a LOWER COOKING COMPARTMENT DOOR LATCH CONTROL PANEL DRIP TRAY PRODUCT IDENTIFICATION PLATE ON LEFT SIDE ACCESS PANEL AIR VENTS FRONT ACCESS PANEL ADJUSTABLE LEVELING FEET 6 INCH LEGS Figure 1 2 SteamCraft 10 Models 24 CGA 10 and 24 CEA 10 with Key Pad Control Panel Sheet 1 of 4 Cleveland Range Inc Printed 3 93 hapter 1 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Page 4 DESCALING PORT UNDER EXHAUST VENT EXHAUST VENT MODEL 24 CGP 10 ONLY i EN RIGHT SIDE SERVICE ACCESS PANEL UPPER COOKING COMPARTMENT DOOR DOOR LATCH AIR VENTS UPPER COOKING COMPARTMENT CONTROL PANEL ON OFF POWER SWITCH LOWER COOKING COMPARTMENT ade LOWER COOKING COMPARTMENT DOOR LATCH CONTROL PANEL DRIP TRAY PRODUCT IDENTIFICATION PLATE ON LEFT SIDE ACCESS PANEL AIR VENTS FRONT ACCESS PANEL ADJUSTABLE LEVELING FEET 6 INCH LEGS Figure 1 2 SteamCraft 10 Models 24 CGP 10 and 24 CEP 10 with Key Pad Control Panel Sheet 2 of 4 Printed 3 93 Cleveland Range In
30. Minute Timer 24 CEA 10 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 125 a On the 24 CGA 10 Check the blue wire and the white gray wire from the timer to the fill solenoid and rinse solenoid valves for continuity and secure connections b On the 24 CEA 10 Check the pink wire and the gray wire from the timer to the R1 relay for continuity and secure connections c Replace or repair faulty wiring and connections and repeat steps 2 3 and 4 d Check the fill solenoid and the rinse solenoid valves for open coils e If the reading is zero the coil is shorted and the solenoid valve should be replaced e Replace solenoid valves that have open coils and repeat steps 2 3 and 4 e If the wiring and solenoids are good but the 3 minute timer does not count down replace the 3 minute timer S MINUTE TIMER 6 Check for 115 120 VAC across the 3 minute timer INPUT terminals 2 3 Figure 6 8 3 Minute Timer 24 CGA 10 e Ifthe meter reads 115 120 VAC across the INPUT terminals replace the 3 minute timer If the meter does not read 115 120 VAC across the INPUT terminals a On the model 24 CGA 10 Check the gray wire and the white gray wire between the timer and the ON OFF switch for continuity and secure connections Replace or repair faulty wiring and connections b On the model 24 CEA 10 Check the gray wire and the white gray wire between the timer
31. Model No Serial No Gas Unit CGA Label Mechanics amp Design Patents Pending Label Patent Label Clearance Label Wiring Diagram Electronic Timer Electric Unit Label Wiring Diagram Electronic Timer Gas Unit Label Wiring Diagram Mechanical Timer Electric Unit Label Wiring Diagram Mechanical Timer Gas Unit Label Wiring Schematic Electronic Timer Electric Unit Label Wiring Schematic Electronic Timer Gas Unit Label Wiring Schematic Mechanical Timer Electric Unit Label Wiring Schematic Mechanical Timer Gas Unit Label Fiberglass Warning Label Disconnect Power Supply Label Installation Warning Label Cleveland Label Operating Instructions Label Start Up Instructions Gas unit only Label Gas Connection Gas unit only Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 154 Wh AK AN Figure 7 3 Steamer Compartment Group Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 155 Fiqure 7 3 Steamer Compartment Group 69298 Drain Screen 1 1 14677 Nut Acorn 414232 Rack Slide 101305 Pin Rack Mounting Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 156 Figure 7 4 Compartment Door and Hinge Assemblies Cleveland Range Inc rinted 3 93 Models 24 CEA 10 and 24 CGA 10 S
32. Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 117 PHASE3 TESTING This phase of testing pertains to the components associated with manually controlled steaming functions After completing Phase 2 Testing verify that the following conditions are set to start Phase 3 testing e The right side and front access panels are removed and the float assemblies relays and contactors are clearly visible e The Main Disconnect Switch is in the ON position and the 3 minute blowdown cycle has stopped The ON OFF power switch is in the ON position e Both upper and lower compartment TIMED MANUAL switches are in the TIMED position e Both upper and lower compartment timers are set for zero minutes a For Key Pad Control Panels The timer display is blank while the ON OFF switch is set to OFF If the timer is not zeroed 00 00 when power is turned on press and hold the CLEAR key on the key pad control panel until the timer is zeroed b For Dial Timer Control Panels Turn the dial counter clockwise until it points to the 0 mark e The water in the steam generator has heated to pre heat temperature i e The heaters have cycled from on to off at least once The heaters must be off when starting this test Sequential Testing Examine the components of the upper compartment and steam generator group first Then repeat Phase 3 testing for the lower compartment and steam generator group Set the upper
33. Operations e ON top end of switch energizes the steamer control panels A red indicator on the switch lights and water fills the steam generator e OFF bottom end of switch turns the steamer control panel OFF The red indicator goes out and the 3 minute blowdown cycle starts 8 STEAM switch Pressure Models Only This switch starts the steam generator heating components After water has filled the generator to the safe operating level the amber indicator in this switch lights The steam generator heating components remain off and do not turn on until the STEAM switch is pressed When this switch is pressed the amber light goes out and the generator heating components begin to heat the water to steam 9 Pressure Gage This gage shows the pressure of the cooking compartment steam supply The pressure should not exceed 10 psi Cooking operations are simple and direct These operations are summarized below in the sequence they are usually performed Following the summary are detailed explanations of each cooking operation These explanations include cautions warnings and instructions that are critical to maintaining full watranty coverage and safe efficient operation of the SteamCraft 10 It is important to read and understand the details of each operation Power On Automatic Fill Start steam supply automatic in atmospheric units GA Ne Inspect the cooking compartment s Preheat the cooking compartments P
34. Refer to heating appliance manufacturer s instructions for wiring auxiliary controls 3 Adjust thermostat heat anticipator to match system current draw The current draw equals the total current required for the ignition module 0 2 A olus the gas control and any other auxiliary equipment in the control circuit Connect Gas Control Use No 18 gauge solid or stranded wire Use in female quick connects for module connections Connect to gas control terminals appropriate to the gas control 69 0463 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 Ground Control System The igniter flame sensor and ignition module must share a common ground with the main burner Use thermoplastic insulated wire with a minimum rating of 105 C 221 F for the ground wire asbestos insulation is not acceptable If necessary use a shield to protect the wire from radiant heat generated by the burner Connect the ground wire as follows Fit one end of the ground wire with a female in quick connect terminal and connect it to the male quick connect GND BURNER terminal on the ignition module 2 Strip the other end of the wire and fasten it under the igniter bracket mounting screw If necessary use a shield to protect the ground wire from radiant heat 3 The burner serves as the common grounding area If there is not good metal to metal contact between the burner and ground run a lead from the burner to ground NOTE Earth grou
35. Separate the wire sets at the terminal strip and make resistance measurement for each valve individually d If the meter reads 0 ohms high resistance or any value greater than 5 of the correct resistance across the drain solenoid replace the valve CT 2 3 Minute Timer In the following procedure replace the notation 115 120 VAC with the correct operating voltage for the SteamCraft 10 model being serviced e The correct operating voltage for 24 CEA 10 models is 120 VAC e The correct operating voltage for 24 CGA 10 models is 115 VAC 1 Set the voltmeter to the 250 VAC scale 2 Set the ON OFF switch to the ON position 3 Refer to Figures 6 7 and 6 8 and connect the voltmeter across timer terminals 1 3 LOAD 4 Watch and time the meter readings as the timer counts down Set the ON OFF switch to the OFF position and start timing the meter readings e Ifthe meter reads 115 120 VAC across the LOAD terminals during the 3 minute countdown and drops to 0 VAC after the 3 minutes the timer is good End this procedure here e If the meter reads 115 120 VAC across the LOAD terminals for more than the 3 minute countdown continue this test with step 5 e If during the 3 minate countdown the meter does not read 115 120 VAC across the LOAD terminals continue this test with step 6 5 Ifthe timer does not count down either there is no load on the timing circuit or the timer is defective 3 MINUTE TIMER Figure 6 7 3
36. Untreated Water Connection Without SteamerGard 1 Refer to Figure 2 10 Verify that a suitable check valve is installed according to NSF and local codes 2 Look at the flow indicating arrows on the strainer and check valve and verify that flow is toward the steamer 3 Install the tee and connecting lines Flush these lines before connecting them to the water supply fittings on the steamer Treated Water Connection With SteamerGard 1 Verify that the SteamerGard water treatment system has been installed according to the SteamerGard installation manual The 40 mesh strainer supplied with the SteamerGard must be installed at the SteamerGard water inlet 2 Refer to Figure 2 11 Verify that suitable check valves are installed according to NSF and local codes The condenser line check valve should be installed between the tee and the steamer The steam generator line check valve should be installed between the SteamerGard and the steamer 3 Look at the flow indicating arrows on the strainers and check valves Verify that flow is toward the steamer 4 Install the connecting lines and flush them before connecting them to the water supply fittings on the steamer Be sure the line from the SteamerGard water treatment system connects to the steam generator fitting on the SteamCraft 10 1 Check all connections for proper tightness Remove the side panel to inspect water connections inside the steamer Figure 2 7 2 Open the water supply va
37. W C O switch remains closed If a malfunction occurs and water level drops below the safe operating level the lower float magnet opens the low water level switch to remove power from either the water heating components e For Model 24 CEA 10 The L W C O switch is part of the compartment steaming circuit in the 120VAC control circuit This switch controls the heating element contactor through the high limit switches e For Model 24 CGA 10 The L W C 0 switch is part of the 24 VAC combustion control circuit This switch controls power to ignition and combustion control components During all operations except blowdown the normally closed upper float switch maintains the proper water level in the steam generator e While the upper float chamber is below the upper switch set point the high level float switch is closed While the switch is closed water fills the generator e When the water level in the float cylinder raises the upper float chamber to the upper switch set point the magnet in the upper chamber opens the high level switch This doses the fill valve and stops water flow into the generator Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 5 Page 87 Rinse Solenoid Valves The rinse solenoid valve controls water flow to the float cylinder during generator blowdown The rinse solenoid operates only with the ON OFF switch in the OFF position The 3 minute timer controls operation of
38. YES NO NOTE The burner relay R1 orR2 energizes relay R3 starting the fan motor and the burner ignition sequence If the fan does not trigger the air prover pressure switch the burners do not light The burner ignition and control components have already been tested in Phase 3 above Only a failure of the TIMED MANUAL switch and or the mechanical timer can prevent the burner fan from starting the burner ignition sequence 1 Check the TIMED MANUAL switch according to component test CT 9 2 Check the mechanical timer according to component test CT 13 Cleveland Range Inc Printed 3 93 Page 108 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 IT 4 3 Do the burners and fan motor shut off when the dial reaches the zero mark YES NO om Replace the Timer l IT 4 4 Does the timer keep accurate time YES NO gt Replace the Timer IT 4 5 Does the buzzer sound for approximately three seconds when the timer is zeroed YES NO gt Failure of any of three components could prevent the buzzer from sounding 1 Check the dial mechanical timer according to component test CT 13 2 Check the 3 second timer according to component test CT 14 3 Check the buzzer according to component test CT 15 Repeat Phase 4 tests IT 4 1 through IT 4 5 for the lower compartment control panel 1 Set the upper compartment timer dial to the zero position 2 Cool the water in the steam generator to preheat temperature b
39. across the top terminals of the ON OFF switch white gray and gray wires on model 24 CGA 10 or white blue and gray wires on model 24 CEA 10 If the meter reads 115 120 VAC the ON OFF switch is good End this procedure here e If the meter does not read 115 120 VAC replace the ON OFF switch and end this procedure here Refer to Figures 6 13 6 14 and 6 15 Check for 115 120 VAC across the center terminals of the ON OFF switch white and black wires e If the meter reads 115 120 VAC continue this test with step 5 e If the meter does not read 115 120 VAC the fault is not in the switch Refer to Figures 6 13 6 14 and 6 15 Check for 115 120 VAC across the bottom terminals of the ON OFF switch pink red and white white red wires on model 24 CEA 10 or pink black and white white wires or model 24 CGA 10 e If the meter reads 115 120 VAC continue this procedure with step 6 Printed 3 93 Page 128 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 e If the meter does not read 115 120 VAC replace the ON OFF switch and end this procedure here Set the ON OFF switch to the OFF position Refer to Figure 6 7 and check for 115 120 VAC across the top terminals of the ON OFF switch white gray and gray wires on model 24 CGA 10 or white blue and gray wires on model 24 CEA 10 e If the meter reads 115 120 VAC the indicator light is burned out Replace ON OFF switch when convenient If the
40. and or national codes Refer for Exhaust Hood Requirements All Models on page 10 If the SteamCraft 10 cannot be installed under an existing hood check the exhaust hood venting requirements for a suitable hood over the operating location 8 The location selected must be capable of supporting the operational weight of the SteamCraft 10 including the weight of water and food The SreamCraft 10 Steamer operating weights are listed on the dimension drawings 9 The Steam Craft 10 must be level both front for back and side to side Select an operating surface that is level enough for allow leveling the unit without extreme adjustment of the legs Page 18 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 INSTALLATION INSTRUCTIONS After selecting the operating location the SteamCraft 10 can be unpacked positioned and installed After Final Setup and Checkout the SteamCraft 10 will provide years of reliable operation CAUTION Malfunctions and equipment damage may result from improper mounting Malfunctions and or damage resulting from improper mounting are not covered by the equipment warranty The SteamCraft 10 MUST BE LEVEL BOTH FRONT TO BACK AND SIDE TO SIDE in all mounting arrangements Equipment damage will result from shifting the SteamCraft 10 more than 10 out of level while power is turned on The unit must be level front to back and side to side Unpacking and Inspection 1 Be
41. blank while the ON OFF switch is set to OFF If the timer is not zeroed 00 00 when power is turned on press and hold the CLEAR key on the key pad control panel until the timer is zeroed b For Dial Timer Control Panels Turn the dial counter clockwise until it points to the 0 mark 1 Set the voltmeter to the 250 VAC scale Check the drain solenoid ground wire green for continuity and secure connections Set the ON OFF switch to the OFF position e If water flows from the dram the drain solenoid is good End this procedure here If no water flows from the drain the fault may not be the drain solenoid Check for clogged drain plumbing Refer to Figures 6 5 and 6 6 and connect the voltmeter leads to test point 1 and test point 2 With these connections check for0 VAC across the drain solenoid e Ifthe meter reads 0 VAC across the drain solenoid and the drain is draining water the valve is operating properly Refer to Figures 6 5 and 6 6 Connect the ohmmeter leads to test point and test point 2 and check the resistance across the drain solenoid a If the reading is zero the coil is snorted and the solenoid valve should be replaced b Remove wiring connections from solenoid valve s at the terminal strip before making measurements Printed 3 93 Page 124 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 c For 24 CEA 10 models there is a set of wires for each valve
42. control panel The compartments can operate separately or simultaneously Throughout these tests reference is made to only one compartment control panel Except when the instructions specify upper or lower compartments the controls of either or both panels can be used e The SteamCraft 10 control panels have either a Key Pad Timer or a Dial Timer The operating difference between the Dial and Key Pad Control Panels is significant only in timed mode To avoid confusion a separate Timer Testing procedure is provided for the Dial and Key Pad Control Panels In addition SteamCraft 10 models 24 CGP 10 and 24 CEP 10 with pressure steam generators have a steam generator control panel The Key Pad Control Panel is shown in Figure 2 16 page 37 The Timer Test for the key pad control panel starts on page 37 The Dial Timer Control Panel is shown in Figure 2 18 page 38 The Timer Test for the dial timer control panel starts on page 38 Steam Generator Control Panel is shown in Figure 2 17 page 37 and Figure 2 19 page 39 Operating Test Preparation 1 Verify that electrical power to the SteamCraft 10 is turned OFF at both the panel ON OFF switch and the main disconnect switch WARNING Death severe electrical shock or equipment damage can result from touching any component inside unit when main disconnect switch is in the on position Use extreme caution during testing with the access cover removed 2 Refer to Figure 2 7 and remove
43. into the slide racks inside the steamer Do not place pans or anything else on the bottom of the com partment 4 Close the steamer door and proceed to Select and Start the Operating Mode The SteamCraft 10 has two cooking modes Manual and Timed MANUAL MODE In manual mode the operator starts and stops the steaming operations Use the manual cooking mode for e A continuous supply of steam e Cooking times longer than the timer can measure over 60 minutes e If the cooking time is unknown and frequent inspection is anticipated TIMED MODE In timed mode the timer starts and stops the steaming operations Use the timed mode for e Unattended cooking for a specific amount of time e When the required cooking time is known e For accurate and consistent cooking times Timed Cooking Procedure In timed mode the timer starts and stops the steaming operations 1 Close the steamer door Sekct the timed mode by pressing the TIMED end of the TIMED MANUAL rocker switch 2 Check the control panel settings At this point the settings should be Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Sevice Manual Chapter 3 Page 59 Remove Food from The Cooking Compartment s e The ON OFF switch is in the ON top position e The TIMED MANUAL switch is in the TIMED top position e The timer dial points to 0 3 Set the required cooking time by turning the timer dial clockwise until it points to the right time ma
44. last shutdown sequence water did not drain from the steam generator 1 Check for blockage in the plumbing between the float cylinder and the steam generator 2 Check the drain solenoid valve and adjoining plumbing for blockage 3 Check the drain line and air gap between the line and floor drain 4 If the plumbing drain lines and drain valve are not blocked refer to component test CT 1 and test the drain 3 Way solenoid valve Continued on next page Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 99 Turn on the main disconnect switch and start a stopwatch NOTE When electric power is turned ON at the main disconnect switch with the panel ON OFF switch OFF an automatic 3 minute blow down cycle starts Use the stopwatch to check that the 3 minute timer stops the blow down cycle in three minutes IT 1 2 Does water flow from BOTH the float cylinder rinse nozzle and the 3 way valve drain port NO YES NOTE During the automatic blowdown cycle the water fill rinse and drain valves are open Fresh water flushes the float assembly and drains into the steam generator Water rushing through the 3 way drain valve pulls water from the steam generator Refer to Drain Valve Operation on page xx If water flows from BOTH the float cylinder rinse nozzle and the 3 way valve drain port the 3 Minute Timer the water fill rinse and drain 3 way valves are functioni
45. limit switch operates to protect the heater coils from overheating If the temperature near the heater element reaches 240 F the switch opens This interrupts power to the heater contactor to prevent operation of the heater element Printed 3 93 Page 90 SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 Combustion Control Module Model 24 CGA 10 Steam Relief Solenoid Valve Model 24 CGA 10 Compartment Steam Solenoid Valves Model 24 CGA 10 Printed 3 93 The combustion control module is an electronic controller that monitors and sequences operation of the gas burner system components The controller functions include a safe start check pilot flame monitoring burner flame monitoring flame failure shutdown a 45 delay circuit and high voltage pulsing to the spark igniter Combustion Air Blower The combustion air blower improves gas burner and heat exchanger effi ciency The blower forces combustion air into the combustion chamber and forces the combustion gasses up the heat exchanger tubes This assures complete combustion of the fuel and distributes heat through the entire length of the exchanger Air Prover Pressure Switch The air prover pressure switch ensures that the burner control module does not start timing the start up until alter air flow is established The pressure switch senses air flow through the combustion chamber and sends a signal to the control module Pilot Spark Igniter The pil
46. local codes where applicable 2 The exhaust hood must be sized for the cumulative ventilation require ments of all gas fired appliances in the area as well as to the SteamCraft 10 3 Do not connect the gas flue directly to a forced draft exhaust system or canopy Excess draft through the flue reduces the oven s efficiency and may affect cooking times 4 If an existing exhaust hood cannot be used a new one should be con structed over the SteamCraft 10 The Dimensions and Clearances Draw ing Figure 2 2 contains the dimensions gas flow and BTU per hour data required to calculate the minimum required hood dimensions and minimum ventilation capacity c f m Furnishing and installing the electrical power lines switches fuse boxes connectors and accessories is the responsibility of the owner and or installer Figure 2 8 illustrates an electrical layout recommended by Cleveland Range When installing the electrical power lines and accessories observe the following instructions 1 In the United States install the electrical power lines in accordance with local codes and or the National Electric Code ANSI NFPA No 70 1990 USA 2 In Canada install the electrical power lines in accordance with local codes and or the Canadian Electrical Code CSA Standard C22 1 Canada 3 Install the proper size disconnect switch circuit breaker or fuses and wire and conduit to conform to all local codes and the national codes cited above See Table
47. location Connect Electrical Line Refer to Table 4 1 and identify the electrical schematic diagram that applies to the SteamCraft 10 model being installed Connect the electrical lines to the terminal block inside the right side access panel as described below 1 Verify that the main disconnect switch is in the OFF position 2 Remove the right side access panel by removing the three screws Figure 2 7 that hold it in place Save the screws 3 Refer to the connection diagram in Figure 2 9 and connect the wires to the terminal block and ground connector accordingly Page 24 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 TERMINAL BLOCK TRANSFORMER AIR POWER CUSTOMER CONNECTION SWITCH CONTACTOR SPARK IGNITION CONTROL INTERNAL TRANSFORMER TIMER MODELS 24 CEA 10 amp 24 CEP 10 MODELS 24 CGA 10 amp 24 CGP 1C Figure 2 9 Electrical Connections 4 The steamer must be electrically grounded by the installer in accordance with the National Electric Code ANSI NFPA No 70 latest edition 5 If no further work inside the side panel is required at this time such as plumbing and leak checks secure the side panel with the three mounting screws Figure 2 7 Do not turn power ON at the main disconnect switch until power is required for component or operational testing Install Water Supply Lines Furnishing and plumbing the water supply lines is the responsibility of the own
48. main power switch a Verify that the main power switch is in the ON position b Check breakers or fuses in the main power switch e If the meter reads 115 VAC at the main power switch sufficient power is being supplied and the switch box is good Continue this procedure with step 6 6 Check for 115 VAC across the transformer primary terminals e If the reading is 115 VAC across the terminals replace the transformer e If the meter does not read 115 VAC check for open wires and loose connections at and between the main power switch the terminal block and the transformer CE trelectionic Koy Pad Timer The electronic keypad timer is a sealed unit Replacement of this unit is the remedy for most timer malfunctions A few timer malfunctions are caused by other SteamCraft 10 components The symptoms of these malfunctions and the associated testing are listed below 1 Refer to the Operating Tests at the end of Chapter 2 Observe the operation of the SteamCraft 10 components during these operations Note any operating malfunctions and continue this procedure with step 2 a Perform the Blowdown Inspection Procedure starting on page 35 and Operating Tests starting on page 35 Malfunctions observed during these operations are due to component faults outside of the timer and timer circuits b Perform the Timer Test Procedure starting on page 37 Malfunc tions observed during these operations may be caused by faulty timer or timer c
49. meter does not read 115 120 VAC replace the ON OFF switch Figure 6 15 ON OFF Switch 24 CGA 10 Electronic CT 6 Float Assembly Before testing the float assembly inspect the cylinder for sediment Sediment in the float assembly cylinder often appears as white sludge As sediment builds up in the cylinder the floats cease to slide up and down smoothly on the shaft The float assembly does not properly respond to water level changes If there is heavy sediment buildup in the float cylinder a Refer to Figures 7 10A and 7 10B Disassemble and clean the float switch assembly the float cylinder and the spray nozzle If the com ponents cannot be cleaned replace them with new pans Reassemble the cleaned components b If the float cylinder required cleaning test the rinse solenoid valve for proper operation according to the procedure outlined in Initial Test Procedure IT 2 IT 4 When the float assembly is free of sediment perform these test procedures 1 Set the voltmeter to the 250 VAC scale 2 Set the TIMED MANUAL switch to the MANUAL position 3 Set the ON OFF switch to the OFF position Wait for the 3 minute blowdown cycle to finish and the generator and float assembly to drain completely 4 Connect the voltmeter across the float low level switch e For model 24 CEA 10 refer to Figure 6 16 and connect the voltmeter leads to the black wire connections at the high temperature limit switch and the pre heat thermost
50. model number identifies a characteristic of the steamer The Steam Craft 10 is 24 inches wide a Convection steamer Electric or Gas powered Atmospheric or Pressurized steam generator and has the capacity for 10 cooking pans This manual covers all standard features and options available on SteamCraft 10 steamers Other than selection of options there are presently no significant design parts or operating differences among steamers with the same model number Figure 1 2 Sheets 1 through 4 illustrate the four SteamCraft 10 models and identify the major components During manufacture SteamCraft 10 s are assigned individual serial num bers A typical SteamCraft 10 serial number is WC 7350 90G 02 The left half of the number carries design information The right half of the number contains the manufacturing date and the unit of the manufacturing lot The date of our sample number is 90G 02 90 1990 G July 02 the second unit of the manufacturing lot Serial numbers arc used when explaining differ ences in design parts or operation among units with the same model number For example a particular part may be used on SteamCraft 10 s with serial numbers before WC 7350 90G 02 and a different part used on steamer WC 7350 90G 02 and those manufactured after it The Product Information Plates list the unit s model and serial numbers and power and wiring requirements These plates are located on the left side panel in the lower right corner Figur
51. opens when the compartment drops below cooking temperature IT 4 7 Does the timer begin to count down after the cooking compartment reaches cooking temperature YES NO Failure of the compartment thermostat or the electronic timer will prevent timer countdown 1 Check the compartment thermostat switch according to component test CT 18 2 Check the electronic timer module according to component test CT 17 IT 4 8 Does the timer START STOP key pause and restart the timer countdown NOTE Once the timer countdown has begun it can be stopped by pressing the timer START STOP key Press this key once to pause the countdown and again to restart the countdown YES NO Replace the timer IT 4 9 Does the timer CLEAR key zero the timer YES NO NOTE Pressing the timer CLEAR key when the countdown is paused returns the cooking time setting zero 00 00 L Replace the timer Set the timer of the upper control panel for 5 minutes and press the START STOP key NOTE After performing test IT 4 7 the Toner is zeroed A cooking time must be set to continue testing Cleveland Range Inc Printed 3 93 Page 110 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 IT 4 10 Does the burner fan motor start when the timer starts its countdown YES NO NOTE The burner relay R1 or R2 energizes relay R3 starting the fan motor and the burner ignition sequence If the fan does not trigger the air prover pressure switch the b
52. paths through other components in parallel with the one being measured Remember to replace the component leads after making the measurement Figure 6 3 shows a typical ohmmeter connection Print4d 3 93 Page 96 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 Insulation Resistance Measurements OHMMETER Voltage Measurements VOLTMETER Figure 64 Typical Voltmeter Connection When measuring the insulation resistance of heater coils to ground use a 500 or 1000 volt megohm meter megger if available Ordinary multimeters do not always detect insulation breakdown because they use low voltage batteries to supply power for resistance measurements True insulation resistance requires a high voltage megger reading Multimeters can be used only to make a quick check for gross insulation breakdowns Set the multimeter to the highest scale and then zero the meter using the zero adjust An insulation resistance of less than one megohm usually indicates poor insulation A very low resistance less than 1 000 ohms indicates broken insulation Voltage measurements require care Always test your meter on a known voltage source to ensure correct meter operation Any 120 or 220 VAC outlet provides a convenient voltage source Circuits that appear dead because a faulty meter indicated 0 volts have resulted in many hair raising and deadly experiences for even seasoned troubleshooters When checking voltages set your mete
53. reaches approximately one inch from the top of the float cylinder 4 If the operational water float is functioning property test the water fill solenoid valve according to component test CT 4 5 If the water fill solenoid valve is functioning properly test the 3 way drain valve according to component test CT 1 NOTE This valve is normally open directing water flow to the drain piping During preheat and steaming operations the solenoid closes this valve directing water to the steam generator The valve remains closed until the float water level reaches approximately one inch from the top of the float cylinder Start a stopwatch when the lower magnetic float closes the lower proximity switch NOTE During preheat and steaming operations this lower float switch controls operation of the burner components through the Preheat Thermostat and relay R3 This switch is normally open and remains open until the float water level is approximately one inch from the bottom of the float cylinder Use the stopwatch to measure elapsed time between dosing of the lower float switch and burner ignition This should be approximately 90 seconds but no less than 45 seconds IT 2 3 Does the burner fan motor start when water reaches the safe operating level YES NO NOTE The lower float switch closes when water reaches safe operating level The burner fan should start when the switch closes Starting the burner fan motor is the first step in the burner ignition
54. rod with emery cloth Fig 13 Exampies of unsatistaciory pilot flames Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 8 207 Make sure electrical connections are clean and justment screw on the gas control clockwise to decrease tight Replace damaged wire with moisture resistant No 18 wire rated for continuous duty up to 105 C 221 F Check for cracked ceramic insulator which can cause short to ground and replace igniter sensor if or counterclockwise i to increase pilot flame Following adjustment always replace pilot adjustment cover screw and tighten firmly to assure proper gas control operation e Set thermostat below room temperature to end call necessary for heat At the gas control disconnect main valve wire Recheck ignition sequence 35 follows from the TH or MV terminal e Reconnect main valve wire Turn on power and set thermostat to call for heat e Set thermostat to call tor heal The pilot should light but the main burner will remain e Watch ignition sequence a burner off because the main valve actuator is disconnected e If spark still doesn t stop after pilot lights replace ignition Check the pilot flame Make sure it is blue steady module and envelops 3 8 to 2 in 10 to 13 mm of the flame e If main burner doesn t light or if main burner lights but syster rod See Fig 13 for possible flame problems and locks out check module gr
55. sequence If the fan does not trigger the air prover pressure switch the burners do not light Failure of any of five components can pre vent the burner fan from starting the burner ignition sequence in preheat mode 1 Check the lower float switch according to component test CT 6 2 Check the transformer that powers the gas burner control circuit Is the voltage at the secondary terminals 24VAC nominal e If the voltage is present proceed to step three e If the voltage is not present test the transformer according to component test CT 7 3 Check the preheat thermostat according to component test CT 8 4 Check the relay R3 according to the relay testing instructions in Component Testing Fundamentals Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 103 5 Check for 120V at the fan motor terminals e If this voltage is present replace the motor e If this voltage is not present check the main power supply associated wiring and connections LI and L2 IT 2 4 Do the burners ignite shortly after the fan motor starts YES NO NOTE The burner fan forces air through the combustion chamber and heat exchanger When this air flow reaches the required volume per minute the normally open Air Prover Pressure Switch closes This closure activates the Burner Control Module The module controls the spark igniter and gas valve These three components initiate and con
56. silence the buzzer 7 Preheat is now complete The SteamCraft 10 steam generating functions are at full capacity and the cooking compartment is at proper cooking temperature Steam cooking can begin in either manual or timed mode Place Food into the Cooking Compartment s CAUTION Some foods drip juices Use a solid catch pan under perforated pans when steaming food that will drip juices Failure to use a catch pan can cause a clogged drain 1 For best cooking results use shallow 2 1 2 inch deep perforated pans without covers Cleveland Range model number PP 2 5 These give the best heat transfer and shortest cooking time 2 When cooking foods that will drip such as meal poultry or fish put a solid catch pan in the bottom slide of the racks 3 Put food into the pans and slide the pans into the slide racks inside the steamer Do not place pans or anything else on the bottom of the com partment 4 Close the steamer door and proceed to select The Operating Mode Select The Operating Mode The SteamCraft 10 has two cooking modes Manual and Timed MANUAL MODE In manual mode the operator starts and stops the steaming operations Use the manual cooking mode for e A continuous supply of steam e Cooking times longer than the timer can measure over 60 minutes e If the cooking time is unknown and frequent inspection is anticipated Page 50 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CE
57. the meter does not read 115 120 VAC between these TIMED MANUAL and ON OFF switch wire connections replace the TIMED MANUAL switch Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 133 Figure 6 21 TIMED MANUAL Switch Figure 6 22 TIMED MANUAL Switch 24 CEA 10 24 CGA 10 e If the meter reads 115 120 VAC between these TIMED MANUAL and ON OFF switch wire connections the fault is not in the TIMED MANUAL switch Test the timer and timer wiring according to CT 13 or CT 17 a Check the TIMED MANUAL switch wiring for continuity and secure connections Replace or repair faulty wiring and connec tions b If the wiring and connections are good the TIMED MANUAL switch is faulty Replace the TIMED MANUAL switch CT 10 Condenser Solenoid Valves 1 Set the voltmeter to the 250V scale 2 Set the ON OFF switch to the ON position 3 Set the TIMED MANUAL switch to the MANUAL position 4 Check for outflow at the drain opening e If water flows from the drain the condenser valve is good End this procedure here e If no water flows from the drain the fault may not be the drain solenoid Check for clogged drain plumbing Continue this procedure with step 5 5 Refer to Figures 6 23 6 24 6 25 6 26 and connect the voltmeter leads to test point 1 and test point 2 With these connections check for 0 VAC across the drain solenoid e If the meter reads 0 VAC across the drain solenoid and the dr
58. the unit been malfunctioning e How has the unit been used if at all since the problem started 3 Equipment damage and faulty operation will result if the drain gas water or electrical supplies fall below requirements This may be caused by other equipment on the same supply lines e Determine the number type and supply requirements of all equipment sharing supply lines with the SteamCraft 10 e If it seems the SteamCraft 10 problems are caused by overburdened supply lines turn off all other equipment sharing the supply lines and operate the SteamCraft 10 If the operating problems stop remove some of the equipment from the common supply lines e If the supply lines are not overburdened turn on all equipment drawing from the same utility supply lines during all tests adjustments and inspection of the SteamCraft 10 4 Proper operation of the SteamCraft 10 is dependent upon proper installation Review the INSTALLATION CHECKS on page 34 and make sure the equipment is installed properly and the installation meets all the warranty requirements Model Numbers and Test Procedure Variations The control circuits and therefore the tests vary for each model To address these variations with clarity separate procedures are used After completing the general preparations start the procedure which applies to the SteamCraft 10 model being tested The Initial Testing Procedure for the Model 24 CGA 10 starts on page 98 Model 24
59. to isolate and correct the problem Following troubleshooting perform the checkout proce dure page 11 again to be sure system is operating normally IGNITION SYSTEM CHECKS STEP 1 Check ignition cable Make sure Igniton cable does not run in contact with any metal surfaces Ignition cable is no more than 36 in 0 9 m long Connections to the ignition module and to the igniter or igniter sensor are clean and tight Ignition cable provides good electrical continuity STEP 2 Check ignition system grounding Nuisance shut downs are often cause by a poor or erratic ground A common ground usually supplied by the pilot burner bracket is required for the module and the pilot burner igniter sensor e Check for good metl to metal contact between the pilot burner bracket and the main burner e Check the ground lead from the GND BURNER terminal on the module to the pilot burner Make sure connections are clean and tight If the wire is damaged or deteriorated replace it with No 14 18 gauge moisture resistant thermoplastic insulated wire with 105 C 221 F minimum rating Check the ceramic flame rod insulator for cracks or evidence of exposure to extreme heat which can permit leakage to ground Replace pilot burner igniter sensor and provide shield if necessary If flame rod or bracket are bent out of position restore to correct position STEP 3 Check spark ignition circuit You will need a short jumper wire m
60. to start Phase 3 testing e The right side and front access panel are removed and the float assembly relays and contractors are clearly visible e The Main Disconnect Switch is in the ON position and the 3 minute blowdown cycle has stopped e The ON OFF power switch is in the ON position e Both upper and lower compartment TIMED MANUAL switches are in the TIMED position e Both upper and lower compartment timers are set for zero minutes a For Key Pad Control Panels The timer display is blank while the ON OFF switch is set to OFF If the timer is not zeroed 00 00 when power is turned on press and hold the CLEAR key on the key pad control panel until the timer is zeroed b For Dial Timer Control Panels Turn the dial counter clockwise until it points to the 0 mark e The water in the steam generator has heated to pre heat temperature i e The burners have cycled from on to off at least once The burners must be off when starting this test Set the upper compartment TIMED MANUAL switch to the MANUAL position NOTE Selecting MANUAL mode for either cooking compartment activates the steam valve the condenser valve and the burner relay R1 or R2 for that compartment First test the upper cooking compartment IT 3 1 Does the burner fan motor start when MANUAL mode is set YES NO NOTE The burner relay R1 or R2 energizes relay R3 starting the fan motor and the burner ignition sequence If the fan does not trigger the air
61. upper and lower control panels to the TIMED position The steaming cycle stops for both compartments and the unit goes into preheat mode The steam relief valve opens A small amount of steam will evaporate while the steam generator cools to preheat temperature This steam and a small amount of condensation will flow from the open vent tube fitting b Set the TIMED MANUAL switch on one of both control panels to the MANUAL position As the steaming cycle restarts the steam relief valve closes This steam and condensation stops flowing from the open vent tube fitting c Results of test steps a and b If unit performs as described in each step the steam relief valve is working properly End this procedure here Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 Page 136 SteamCraft 10 Service Manual Chapter 6 If steam relief valve does not open or close as described in each step continue this procedure with step 6 6 Refer to Figure 6 27 Check for 115 VAC across the solenoid terminals of the steam relief valve If the meter does not read 115 VAC across the solenoid terminals continue this procedure with step 7 e If the meter reads 115 VAC across the solenoid terminals the steam relief solenoid valve Replace it with a new one 7 Check leads to the steam relief solenoid valve for continuity and secure connections Replace or repair faulty wiring and connections Figure 6 27 Steam Relief Valve CT 12
62. ventilation and operation of gas fired appliances as specified by local and national codes e Models 24 CEA 10 and 24 CEP 10 have electric steam generators and do not have an exhaust vent In some areas local codes require installation of these units under an exhaust hood suitable for ventilation and operation of steam generating appliances Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 11 Water Quality Requirements CAUTION Using water not within the limits specified in this manual could void or adversely affect Cleveland Range s warranty coverage of the SteamCraft 10 As with any steam generating equipment poor water quality degrades SteamCraft 10 performance If feed water is low in Total Dissolved Solids TDS and free of particulate matter the steam generator heating element and valves of me Steam Craft 10 will give years of trouble free service with a minimum of maintenance In some areas even potable tap water contains a variety of impurities that can cause costly problems in steam generating equipment Of primary concern are mineral salts and other impurities which remain behind as lime or scale deposits during the steam generating process These deposits have caused components to fail including nearing elements probes and solenoid valves Of equal importance is me decrease in heat transfer efficiency caused by lime and scale deposits Decreased heat transfer increases
63. water and power consumption Use of the SteamCraft 10 in areas with poor water quality requires installation of a SteamerGard water treatment system or increased frequency of maintenance cleaning and descaling Check the quality of supply water as described below before starting con struction of the water supply lines If a SteamerGard water treatment system must be installed to achieve acceptable water quality install it before connecting the water supply lines to the SteamCraft 10 For more information on water treatments refer to Softened Treated or Filtered Water on page 16 Contact a local water treatment specialist for an on the premises water analysis The recommended minimum feed water quality requirements for the SteamCraft 10 are listed in Table 2 2 Table 2 2 Minimum Water Quality Requirements Total Dissolved Solids less than 60 parts per million Silica less than 13 parts per million Alkalinity less than 20 parts per million ph factor greater than 7 5 Page 12 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Ele E Gen 71 19 1808enrn 10 12 x 20 x 2 1 7 Cofetenc Pons or i ran 150 38mm Do CE Fie Gas Det from Boiler 2D 17 x20 x T Cotter Pos e E goe Sappy for Condermer A Di Ps E bei for Boer ebe Solution WY Fie Dwerter f required 6 12 12 x Coeiex Pos R Wer for Boae ond Weter bech 3 Figure 2 2 SteamCraft 10 Dimensions and Clearances
64. with the water fill cycle Figure 5 8 Partial Schematic Steam Valves 24 CGA 10 Cleveland Range Inc Printed 3 93 Page 78 UPPER STEAM TUBE STEAM GENERATOR CONNECTIONS LOWER STEAM TUBE Wa Boz UPPER COMPARTMENT ote TEAM VALVE if Normally Closed LOWER COMPARTMENT STEAM VALVE Normalty Closed N STEAM RELIEF VALVE Normally Open To Drain Figure 5 7 Steam Flow Control Components 24 CGA 10 Repeated SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 When the upper cooking compartment is set for a period of timed steaming the upper compartment steaming circuits are energized through the timer circuit The lower compartment continues MANUAL steaming as described in step B e For Dial Timers The countdown starts as soon as the timer is set and the dial is released e For Key Pad Timers The countdown delays until the compartment reaches cooking temperature The normally open Compartment Thermostat closes and allows the timer countdown The upper compartment condenser and steam valves function exactly as the valves in the lower compartment described in B I above Steam from the generator passes through the upper steam valve into the upper cooking compartment Figures 5 7 2 Relay R1 is energized The R1 contactor closes by passing the preheat side of the Preheat Thermostat in parallel with the R2 contactor Refer to Figure 5 9 With both r
65. 10 24 CGP 10 24 CEA 10 24 CEP 10 3 Figure 2 12 Water Strainer Assembly Connect Water Supply Lines Figure 2 13 Water Strainer Installation c Whether installing a treated or untreated water supply system use the following water line sizes e For the two lines between the Steam Craft 10 and the tee use 3 8 inch IPS water supply lines to match the 3 8 inch compression fittings mounted on the bottom panel of the SteamCraft 10 e For the single line between the tee and the main cold water supply use 1 4 inch to 5 8 inch IPS water supply lines If lines larger than 5 8 inch are used in this segment a pressure regulator must be installed before the tee to maintain the pressure specified in step four d Install a manual water valve between the main cold water supply line and the SteamCraft 10 lines e The National Sanitarian Foundation NSF requires installation of a check valve in all supply lines in accordance with and as required by local plumbing codes f At the points indicated in the recommended plumbing layouts install a 40 mesh water strainer of the type and construction illustrated in Figure 2 12 A strainer is provided with the Steam Craft 10 4 Construct all supply lines up to the point of installing the strainer s illustrated in the recommended plumbing layouts Flush the water supply lines before connecting the strainer s e If the remaining water supply lines and or SteamerGard are not immediatel
66. 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 131 CT 7 Gas Control Transformer 24 volt model 24 CGA 10 1 Check that the main power switch is in the ON position GAS CONTROL 2 Set the voltmeter to the 120 VAC scak TRANSFORMER Refer to Figure 6 18 and check for 24 VAC across transformer secondary terminals e If the meter reads 24 VAC the transformer is good End this procedure here e If the meter reads no or low voltage across secondary terminals continue this procedure with step 4 4 Set the voltmeter to the 250 VAC scale 5 Check power at main power switch If the meter does not read 115 VAC at the main power switch a Verify that the main power switch is in the ON position FLOAT b Check breakers or fuses in the main power switch Figure 6 18 Gas Control Transformer f N SS e If the meter reads 115 VAC at the main power switch sufficient power is being supplied and the switch box is good Continue this procedure with step 6 6 Check for 115 VAC across the transformer primary terminals e If the reading is 115 VAC across the terminals replace the transformer e If the meter does not read 115 VAC check for open wires and loose connections at and between the main power switch the terminal block and the transformer CT 8 Preheat Thermostat SS Steam Generator 1 Set the ON OFF switch to the OFF Position 2 Set the TIMED MANUAL switch to the MANUAL position 3 Remove the right si
67. 2 3 for wire requirements 4 Install a separate disconnect switch and fuses or breakers sized to meet the line amps required by the SteamCraft 10 see Table 2 3 The fuses or breakers may be an integral part of the disconnect switch or in a separate fuse box Install the disconnect switch for easy access as needed for daily startup and shutdown Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 23 Main Disconnect Switch and Fuse Box SteamCraft 10 Electrical Supply CONNECTION A Ge z Main Electric Power Supply Location Detailed l on S Dimension Drawing Figure 2 8 Recommended Electrical Layout 5 There should be a sufficient length of flexible conduit between the SteamCraft 10 connector and the wall so the unit can be moved for service 6 Each steamer must be electrically grounded by the installer in accordance with the National Electric Code ANSI NFPA No 70 latest edition 7 The characteristics of the electric power supply must match the power requirements specified on the SteamCraft 10 product identification plate The plate is located on the left side panel in the lower right corner as detailed in Figure 2 2 Table 2 3 Minimum Wire Requirements VOLTS KILOWATTS AMPS SERVICE WIRE 3 Phase AMPS SIZE 208 32 6 92 115 0 220 27 4 73 91 1 240 32 6 80 100 1 440 27 4 36 45 6 480 32 6 40 50 6 Use solid copper wire rated for 75 C wet
68. 4 St 100746 Fitting Hose 1 2 H x 3 8 NPT Brass 05280 Elbow Street 90 3 8 Brass 105794 Fitting Bulkhead 3 8 NPT Brass 1058490800 Hose NT 80 1 2 ID x 3 4 OD x8 0 Long 1058490500 Hose NT 80 1 2 ID x3 4 OD x5 0 Long 105790 Fitting Tee 1 2 Hx 1 2 H x 1 4H 1058490500 Hose NT 80 1 2 ID x3 4 OD x5 Long 105792 Fitting Elbow 90 1 4 Hx 1 2 H 1058500200 Hose NT 80 1 4 ID x 1 2 OD x2 Long 1058490250 Hose NT 80 1 2 ID x 3 4 OD x2 5 Long 106219 Clamp Worm Drive 1 4 25 32 x 5 16 W S S 4 N 2 3 4 5 6 7 8 9 1 N N N A OOO Ww O N A CA o gt Cleveland Range Inc Printed 3 93 rage 1 6 ole diNUldit 1U SENICE Vvanudl Ulldapler IWIOUEIS 24 UEA 1U alld kaf IM anc TYP HOSE CONNECTION Figure 7 11 B Water Inlet System Model 24 CGA 10 Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter7 Page 179 a 11B Water Inlet System Model 24 CGA 10 Bracket Mounting Steam Solenoid Screw Thread Cutting 8 32 x 25 Fitting Hose Barb 1 4 H x 1 4 90 Valve Solenoid 1 4 N C 120V Fitting Hose Barb 1 4 H x 1 4 St 1058500500 Hose NT 80 1 4 ID x 1 2 OD x5 Long 1058490850 Hose NT 80 1 2 ID x 3 4 OD x8 5 Long 105790 Fitting Tee 1 2 Hx 1 2 Hx 1 4H 1058490250 Hose NT 80 1 2 ID x 3 4 OD x2 5 Long 1058490300 Hose NT 80 1 2 ID x3 4 OD x3 0 Long 105792 Fitting Elbow 90 1 4 Hx 1 2H 1058500200 Hose NT
69. 751 Follow hazard and leak cleanup procedures on add container label If the label is not readable or has been removed refer to the following hazard and emergency instructions as a minimum safety precaution THESE INSTRUCTIONS ARE FOR USE WITH PHOSPHORIC ACID ONLY e Health Hazard Data Effects of Overexposure Product is extremely irritating to the eyes and may result in eye burns Product is severely irritating to skin and can result in skin burns repeated or prolonged contact with more dilute solutions may result in dermatitis Aerosol mist or vapors are irritating to respiratory tract eyes and throat Prolonged exposure to high concentration may result in pulmonary edema If ingested may result in abdominal hemorrhage with severe abdominal pain nausea vomiting or loss of consciousness necrosis of stomach and gastrointestinal tract may also occur e Emergency and First Aid Procedures In case of eye contact immediately flush eyes with plenty of water for at least 15 minutes Seek medical aid In case of skin contact immediately wash with soap and plenty of water for at least 15 minutes while removing contaminated clothing Seek medical aid If inhaled remove to fresh air If not breathing give artificial respiration If breathing is difficult give oxygen Seek medical aid If swallowed do not induce vomiting Give large quantities of water Seek medical aid Never give anything by mouth to an unconscious person e Spill or Lea
70. 91 CHAPTER 6 COMPONENT TESTING GUIDE INTRODUCTION This chapter is exclusively for Cleveland Range authorized service repre sentatives These representatives should be experienced in the service repair and maintenance of food service equipment in general and with Cleveland Range equipment specifically The service representative must thoroughly understand Chapters through 5 of this manual before applying any of the information or instructions in this chapter This component testing guide helps qualified service personnel test the Steam Craft 10 and determine which components are operating properly The guide has three sections e Fundamental Component Testing e Initial Test Procedures e Component Test Procedures After reviewing the fundamentals section use the Initial Test Procedures to identify properly operating systems and isolate malfunctions without unnec essary component replacement The Initial Test Procedures refer to specific component test procedures in the component testing sections If components must be replaced use only Cleveland Range authorized replacement parts to maintain complete warranty coverage Models Covered In This Chapter This chapter covers SteamCraft 10 models with atmospheric steam generators e Model 24 CGA 10 Gas fired atmospheric steam generator e Model 24 CEA 10 Electric atmospheric steam generator Figures And Illustrations Most illustrations in this chapter are on the same page or near
71. A 10 24 CEP 10 TIMED MODE In timed mode the timer starts and stops the steaming operations Use the timed mode for e Unattended cooking for a specific amount of time e When the required cooking time is known e For accurate and consistent cooking times Timed Cooking Procedure Use the timed operating mode for completely automatic unattended cooking In timed mode the temperature compensation circuit and the cooking compartment temperature sensor are active They allow the timer to count down ONLY WHILE THE COOKING COMPARTMENT IS AT COOKING TEMPERATURE This assures uniform cooking as the timer automatically compensates for food product defrosting and or compartment heat up time 1 In timed mode the temperature compensation circuit performs automatic preheating Manual preheating is not usually required If the operator chooses to manually preheat the cooking compartment refer to page 48 Preheat the Cooking Compartnents 2 Select the timed automatic mode by pressing the TIMED end of the TIMED MANUAL rocker switch 3 Check the control panel settings At this point the settings should be e The ON OFF switch is in the ON top position e The TIMED MANUAL switch is in the TIMED top position e The timer is set to 00 00 4 If the timer is not zeroed 00 00 press and hold the CLEAR key on the key pad control panel The timer can be set only when the cooking time display is clear 00 00 5 Set the required
72. AGE ______ DESCRIPTION ow eet BEREA ge The 36E96 Series D B I amp H S I gas valve is a designed for use on automatic spark ignition systems and hot surface application It is equipped with a redundant solenoid valve a solenoid operated main valve that controls gas glow to the main burner a pressure regulator to maintain a constant outlet pressure for varying inlet pressures a Lo Hi feature to permit two stage setting for lighting of main burner and a two position knob for manual gas shut off A variety of models are available to suit voltage pipe size and pressure regulation requirements Fig 1 NOTE TEER D ircui i Its Do not exceed the specification ratings Aer d Higher voltage will damage the control and All wiring must conform to local and national may cause shock or fire hazard electrical codes and ordinances This control is a precision instrument that should be handled carefully Rough handling or distorting components could cause the controls to To prevent electrical shock and or equipment malfunction damage disconnect electrical power to the system at the main fuse or circuit box until installation is complete CONTENTS S hut off gas to main heating system until Description installation is complete Precautions Specifications Do not short out terminals on gas valve or pri Installation mary control to test Short or incorrect wiring Main Piping Connections can cause
73. AM NOTES For each unit the installer must provide a ground con nection and a separate fused disconnect switch The Product Identification Plate located in the lower right corner of the left side panel specifies the electric power and gas utility requirements A manual shut off valve and a drip leg must be installed between the main gas supply and the steamer supply lines Bleed air from the gas line at the fitting closest to the internal automatic gas valve Refer to Figure 2 14 for the recommended component arrangements Never exceed 14 water column 1 2 psi gas pressure If the gas supply pressure exceeds 14 water column a pressure regulating valve must be installed in the gas supply plumbing to reduce the gas pressure to less than 14 water column The unit must have a cold water supply NOT HOT The water supply must meet the quality requirements of Table 2 2 and the pressure requirements on page 16 A SteamerGard filtering system is recommended when water quality does not meet the Table 2 2 requirements 7 Run a single water line between the main cold water supply and the tee The two separate steam generator and condenser blowdown supply lines are relatively short 8 A manual shut off valve must be installed between the main water supply and the steamer supply lines Refer to Figure 2 10 or 2 11 for recommended component arrangements 9 The drain line must have a gravity flow away from the 10
74. At end of day or shift Requirements on page 11 If the local water supply meets the minimum supply water quality standards observe the following guidelines to establish proper blowdown scheduling and maintain warranty coverage e For units without a SteamerGard water treatment system blowdown must be performed after every 4 hours of operation and at the end of each shift as specified in the Shut Down and Cleaning procedure e For units with a SteamerGard water treatment system blowdown must be performed after each shift as specified in the Shut Down and Cleaning procedure Blowdown Procedure When the SteamCraft 10 is turned off the blowdown cycle starts and runs automatically The complete cycle takes approximately 3 minutes 1 Press the OFF bottom end of the ON OFF switch to turn off the SteamCraft 10 The red indicator on the ON OFF switch turns off Do not turn power off at the main disconnect switch during blowdown 2 Automatically the drain valve begins to draw water from the steam generator 3 The fill and drain valves operate simultaneously for 3 minutes 4 At the end of the 3 minute blowdown cycle the fill valve closes 5 When blowdown is complete the SteamCraft 10 can be restarted or the shut down procedure completed e To restart the unit Power ON Automatic Fill on page 47 e To shut down the unit refer to Shut Down and Cleaning below This procedure must be performed at the end of each day or shi
75. B x C Cofeteno Pos Se Woter Supply for Boier ond Weter injection Our eB tr ame cae XE 240v SN 415V AN 32O AT RATED WOE Figure 2 2 SteamCraft 10 Dimensions and Clearances Model 24 CEP 10 Sheet 4 of 4 Cleveland Range Inc Printed 3 93 Page 16 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Softened Treated or Filtered Water Do not use softened or chlorinated water in the SteamCraft 10 steam generator If the water supply is treated or softened either by the water company or on the premises it may contain chlorine or various salts These additives are damaging to the SteamCraft 10 steam generator Salts used to soften water cause rapid scale buildup and increased corrosion Some water treatment plants kill bacteria in the water by adding chlorine Chlorinated water is actually dilute hydrochloric acid It is very damaging to the SteamCraft 10 When heated in the steam generator chlorinated water rapidly dissolves generator walls and heater elements In extreme cases poisonous and highly corrosive chlorine gas is released in the steam generator Installing a high volume water filtering system such as the SteamerGard removes most of the salts used for water softening Contact a local water treatment specialist or the local water company for assistance with chlorinated water Water Supply System Select a water supply system that fulfills the requirements lis
76. BLU Figure 6 38 Compartment Thermal Switch Upper Compartment PUR L BLU L BLU Figure 6 39 Compartment Thermal Switch Lower Compartment Cleveland Range Inc SteamCraft 10 Service Manual Chapter 6 Page 141 1 Set the ON OFF switch to the OFF position 2 Set the TIMED MANUAL switch to the MANUAL position 3 Open the cooking compartment door and allow the compartment to cool Leave the door open while preparing the test leads and ohmmeter WARNING Severe electrical shock and equipment damage may result from uncovered compartment thermostat leads One lead remains hot 115 120 VAC when the ON OFF switch is ON 4 Carefully disconnect leads Purple Blue and L Blue wires from the compartment thermal switch top compartment or Purple L Blue and L Blue wires from the compartment thermal switch lower compart ment Tape the ends of the leads to avoid shocks and short circuits during testing 5 Adjust the ohmmeter for a zero reading on lowest scale 6 Refer to Figures 6 38 and 6 39 and connect the ohmmeter leads across the compartment thermal switch 7 After about 5 minutes the compartment will be cool enough for this test Check the ohmmeter reading e If the meter reads 0 ohms across compartment thermal switch terminals replace the thermal switch e If the meter reads infinite ohms across compartment thermal switch terminals continue this procedure with step 8 8 Close the compartment door and set
77. CEA 10 starts on page 111 Cleveland Range Inc Printed 3 93 Page 98 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 INITIAL TEST PROCEDURE MODEL 24 CGA 10 Before starting this procedure review the Introduction and perform the General Preparations WARNING Death severe electrical shock or equipment damage can result from touching any component inside the unit when the main disconnect switch is in the on position Use extreme caution during testing with an access cover removed Set Up The Initial Test Conditions 1 Turn off the control panel ON OFF power switch 2 Turn off the Main Disconnect Switch 3 Make sure water is supplied to the unit and is on 4 Make sure gas is supplied to the unit and is on 5 Remove the right side and front access panels The float assembly relays and contractors should be clearly visible PHASE 1 TESTING This phase of testing pertains to components associated with the water fill drain and blowdown functions The panel ON OFF switch is OFF throughout this phase The TIMED MANUAL switch and TIMER settings are not significant while the ON OFF switch is in the OFF position IT 1 1 Is there water standing in the float cylinder NOTE The drain valve is normally open With power off at both the ON OFF switch and Main Disconnect the drain valve is open The steam generator and float NO YES cylinder is empty Water in the float cylinder indicates that during the
78. Checks 7 Repeat steps 2 through 6 no more than three times If the burners do not light after the third attempt call a Cleveland Range authorized service representative to adjust the burner controls 8 Turn off electrical power to the Steam Craft 10 at both the panel ON OFF switch Figure 2 16 and the main disconnect switch Figure 2 8 Recommended Electrical Layout The Final Setup and Checkout procedures prepare a recently installed or repaired SteamCraft 10 for operation The procedures check proper electrical gas water and drain connections to the SteamCraft 10 and verify basic steamer operation Read through all pans of this procedure before starting CAUTION Equipment damage and faulty operation will result if the gas water or electrical supplies fall below requirements This may be caused by other equipment on the same supply lines During all tests adjustments and inspection of the SteamCraft 10 turn on all equipment drawing on the same utility supply lines Proper operation of the SteamCraft 10 is dependent upon proper installation Performing the following checks after installation could avoid unnecessary service calls 1 Refer to the appropriate dimension drawing and verify that the specified clearances are met 2 Verify that the unit is level front to back and side to side 3 Check inside each cooking compartment for proper installation of the drain screen slide racks and door gasket assembly Be s
79. Compartment Steam Solenoid Valve Model 24 CGA 10 Before starting this procedure verify proper operation of the Steam Relief Solenoid Valve on page 135 Refer to Figures 6 28 and 6 29 1 Set the voltmeter to the 250 VAC scale 2 On the control panel set the ON OFF switch to the ON position 3 Set the TIMED MANUAL switch to the MANUAL position 4 Check for 115 VAC across the solenoid terminals of the steam control valve in question If the meter does not read 115 VAC across the solenoid terminals continue this procedure with step 5 If the meter reads 115 VAC across the solenoid terminal s either the solenoid valve is faulty or the plumbing is blocked to or from the valve a Check for blocked or damaged tubing and fittings between the steam supply Figure 6 28 Lower Compartment Steam and valves between the valve and steam manifold and between the steam Valve manifold and cooking compartment Clean and or replace blocked or faulty fittings and tubing b Check for a blocked or damaged steam manifold Clean and or replace blocked or faulty steam manifold components c If the steam supply tubing fittings and manifold are clean and in good condition the steam supply solenoid valve is faulty Replace the steam supply solenoid valve 5 Check leads to the steam solenoid valve for continuity and secure connections Replace or repair faulty wiring and connections Figure 6 29 Upper Compartment Steam Valve Printed 3
80. Control Panel Electronic Figure 7 5 Mechanical Figure 7 6 Stearn Generator Assembly Figure 7 9b Drain Flow Control Electrical Components Components Figure 7 12b Assembly Figure 7 8b Water Inlet System Figure 7 11b Gas Contro Valve and Piping Figure 7 14 Figure 7 1 B Major Component Groups 24 CGA 10 Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 ice Manual Chapter 7 SteamCraft 10 Serv Page 152 a ee Ha Vy Wa Hee 8 V a Sean Gay Le d ke Je We SS A S ALE A CMa 7 se ae Z ae ee Cleveland Range Inc ts Panels and External Componen Figure 7 2 Access Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 153 Figure 7 2 Access Panels And External Components 106042 19267 105670 106043 105666 105681 105802 105762 06158 100733 14929 14889 101770 106089 106090 101832 106141 101831 105971 105973 105972 105974 105753 105973 105754 105974 105182 14932 106176 105726 1042361 106110 14895 Cleveland Range Inc Panel Side Right Screw Panel Back Panel Side Left Panel Top Gas Panel Top Electric no hole Hood Gas Vent Gas units only Panel Lower Front Leg Bullet 6 inch Label Boiler Fill Label Cold Water Fill Label Drain Connection Label Model No Serial No Electric Unit Label Model No Serial No Gas Unit AGA Label
81. F switch is first set to ON the water fill and preheat cycles start and operate as described on pages 72 and 74 B When the lower TIMED MANUAL switch is set to MANUAL the lower compartment steaming circuits are energized directly 1 The normally closed lower compartment condenser and steam valves open Condenser spray starts flushing the condenser drain fitting The steam path opens between the lower compartment and the steam generator Figure 5 8 dark shading 2 Relay R2 is energized Relay R3 and the burner ignition and control components are energized through the closed R2 contactor This bypasses the preheat side of the Preheat Thermostat dark shading Burner ignition and control operations are explained on page 79 3 The burner fan starts and the gas burners ignite In a few minutes the burners increase water temperature from 185 F to steaming temperature above 217 F e Water Temperature over 185 F activates the Preheat Thermostat The preheat side of the switch opens closing the R4 Steam Relief side of the switch Figure 5 8 light shading e With both R3 and R4 relays energized the R3 and R4 contactors are closed With both contactors closed the normally open Steam Relief Valve closes to direct steam into the lower cooking compartment Refer to Figures 5 7 and 5 8 4 Steam builds in the generator and expands into the lower cooking compartment The steam generator steaming cycle continues simultaneously
82. Kar corcar Gem amon SYSTEM SHUTS OFF Remorse NV toad at Freed d woes Cat CEC Sporen ane CONTEST Bnd wg d mex eegen Fig 14 S8600 S8610 Troubleshooting guide 15 69 0463 Cleveland Range Inc Printed 3 93 ANSI STANDARDS 208 SteamCraft 10 Service Manual Chapter 8 Models 24 CGA 10 and 24 CEA 10 EXHIBIT A RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE INSTALLATION AS A PRELIMINARY STEP TO APPLYING AN AUTOMATIC INTERMITTENT PILOT SYSTEM The following procedure is intended as a guide to aid in determining that an appliance is properly installed and is in a safe condition for continuing use This procedure is predicated on central furnace and boiler installations equipped with an atmospheric gas burner s and not of the direct vent type It should be recognized that generalized test procedures cannot anticipate all situations Accordingly in some cases deviation from this procedure may be necessary to determine sale operation of the equipment a This procedure should be performed prior to any attempt at modification of the appliance or the installation If it is determined there is a condition which could result in unsafe operation the appliance should be shut off and the owner advised of the unsafe condition The following steps should be followed in making the safety inspection Conduct a Gas Leakage Test of the appliance piping and control system downstream of the shutoff valv
83. Lines 30 Burner Ignition Test Gas Fired Models Only 31 Final Setup amp Checkout 33 Cleveland Range Inc Printed 3 93 Page ii SteamCraft 10 Service Manual Models 24 CGA 10 0 and 24 CEA 10 Table of Contents continued Chapter Page Installation Checks 33 Operating Tests 34 Operating Test Preparation 34 Blowdown Inspection Procedure 35 Operating Test Procedures 35 Timer Test Procedures Key Pad Control Panel 37 Timer Test Procedures Dial Timer Control Panel 38 CHAPTER 3 OPERATION 41 INTRODUCTION 41 DIFFERENCES AMONG MODELS 41 Atmospheric Generator Models 41 Pressure Generator Models 41 OPERATIONAL SAFETY 41 BURNER LIGHTING 43 GAS LEAK INSTRUCTIONS 43 OPERATING MODES 43 Manual Operation 43 Timed Operation 43 Manual Timer 43 Steam Generator BlowDown 44 MAIN DISCONNECT SWITCH 44 CONTROL PANELS 44 COOKING OPERATIONS KEY PAD CONTROL PANEL 46 Summary Of Cooking Operations 46 Power ON Automatic Fill 47 Start Steam Supply 47 Inspect The Cooking Compartment 47 Preheat The Cooking Compartments 48 Place Food Into The Cooking Compartment s 49 Select The Operating Mode 49 Timed Cooking Procedure 50 Manual Cooking Procedure 51 Power OFF Automatic Blowdown 52 Blowdown Frequency 52 Blowdown Procedure 53 Shut Down And Cleaning At End Of Day Or Shift 53 DIAL TIMER CONTROL PANEL SUMMARY 55 COOKING OPERATIONS DIAL TIMER CONTROL PANEL 56 Summary Of Cooking Operations 56 Power ON Automatic Fill 56 Printed 3 93 Clevel
84. ON ax Lal DH BH CUSTOUEA CORNECHION BE AEs y GI SI KC DICK TUEA 05349 HEATER ELEMENT JE PH 105971 Figure 7 22 SteamCraft 10 Electrical Wiring Diagram Model 24 CEA 10 Key Pad Control Panel Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 197 STEAMCRAFT 10 ELECTRIC MECHANICAL TIMER _ Ce A zess e em eee RU e wee D G PREMEAD 3 Tt tA Me nn W I m i PAPIA gi gt R fom ed vrg Nut oyw e no DN n xa LA SItSAT TRNSTORULA COWMGURATICH ee an CUSIOML CONHECNOH PALNA reene Se H TEEN WETA LTL dp De iow ran cur ee DA Ke Gab Bea CSE ML ACTOR COMMACIOR P Gr S n ua D t D H a mu vw Uu PTE m Daa WANE WNO D gg LN wn EEN EE San mu scm II arta tute reuen titutu neupi Irvin Agent ren 13 A t KEN i 5 H HEATER EWENI j j HEATER FITMENT tat at titun aii TUNEN na a Sen Ni HAMR PUNENT SSH ji MIANA cunt SACD Gin i PH posal Figure 7 23 SteamCraft 10 Electrical Wiring Diagram Model 24 CEA 10 Dial Timer Control Panel Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter8 199 CHAPTER 8 IGNITION MODULE INTRODUCTION HONEYWELL and WHITE RODGERS MANUALS Cleveland Range Inc The SteamCraft 10 gas models have
85. STEAMCRAFT 10 ELECTRICAL CIRCUITS Model 24 CEA 10 High Voltage Circuit 120 VAC Circuit There are two parts to the SteamCraft 10 Model 24 CEA 10 circuitry the high voltage circuits and the 120 VAC circuits In the units with the Key Pad Control Panel an additional transformer provides 24 VAC to the electronic timer The high voltage circuit draws power directly from the external supply lines to power the heater elements the dryer element and the primary of the transformer The high voltage value depends on local supply line voltage The required characteristics of the external power supply are listed on the Product Identification Plate as described in Chapter 1 While the main power switch is ON line power energizes the primary of the transformer through 2 amp fuses When the control circuits call for operation contacts of the heater contactor close to power the heater elements The transformer secondary supplies power to the 120 VAC components through the ON OFF switch The 120 VAC components include e Water Fill Solenoid Valves e Heater Contactor e Condenser Solenoid Valves e 3 minute timer e Rinse Solenoid Valves Timer control circuits e Drain Solenoid Valves e Preheat Thermostat e Float Assembly The float assembly switches the timer the preheat thermostat and the TIMED MANUAL switch control operation of the 120 VAC components STEAMCRAFT 10 ELECTRICAL CIRCUITS Model 24 CGA 10 Cleveland Range Inc 3 93
86. above minimum safety limit When closed this switch energizes the water heating components 8 Preheat Thermostat preheat side Opens if steam generator water temperature is above 185 F Starts and stops heating components during the Preheat cycle 9 Preheat Thermostat R4 side CGA Closes when steam generator water temperature is above 185 F Controls action of the Steam Relief Valve item 13 i 10 Compartment Thermostat Used with N Closes when cooking compartment NO electronic key pad timers only temperature is above 190 F Delays timer countdown until compartment reaches cooking temperature 11 High Temp Limit Switch CEA i Opens when heating element Ki w temperature is above 240 F Protects elements from overheating 12 Air Prover Pressure Switch CGA N Opens when burner fan supplies required combustion air volume When this switch closes the gas burner ignition combustion cycle starts 13 Steam Relief Valve CGA N Closes when item 9 closes and energizes relay R4 When closed this valve directs steam into the lower cooking comp artment C C C O C C O NC O O NC O O NC 14 Compartment Steam Valve CGA Closed Open for selected one valve for each compartment compartment Figure 6 1 Normally Open and Normally Closed Valves and Contacts Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 Timers Figure 6 2 Timers Thermostatic Snap Switches Heat
87. across the LOAD terminals before energizing the timer and leave it connected during the test Watch for the LOAD voltage to read 115 120 VAC when the timer energizes and 0 VAC at the end of the proper delay 3 minutes or 3 seconds Thermostatic snap switches can be tested by voltage or resistance measure ments Closed switches should always measure 0 ohms Resistance of any open switches should always measure infinity e The high temperature limit switch protects the heater elements and the compartment temperature thermal switch electronic timer units only e The preheat thermostat mounted on each steam generator monitors the generator temperature and controls the heating components during the preheat cycle In this text heater element refers to the complete assembly The heater element contains three coils Wire markings identify each coil as follows e Coil 1 connects to leads 1L1 and 1L2 e Coil 2 connects to leads 2L1 and 2L2 e Coil 3 connects to leads 3L1 and 3L2 De energize all circuits before connecting any resis tance measuring device such as an ohmmeter Notice that the ON OFF switch set to OFF does not remove power from all 115 120 VAC circuits Turn power OFF at the main power switch Measuring resistance with power applied may damage your meter Before measuring resistance of any component isolate the component by disconnecting one or both circuit leads from the component This will prevent a false reading caused by circuit
88. ade from ignition cable or other heavily insulated wire Close the manual gas valve Disconnect the ignition cable at the SPARK terminal on the module Models 24 CGA 10 and 24 CEA 10 WARNING When performing the following steps do not touch stripped end of jumper or SPARK terminal The ignition circuit generates over 10 000 volts and electrical shock can result Energize the module and immediately touch one end of the jumper firmly to the GND terminal on the module Move the free end of the jumper slowly toward the SPARK terminal until a spark is established Pull the jumper slowly away from the terminal and note the length of the gap when sparking stops Check table below ARC LENGTH ACTION No arc or arc less than Check external fuse if provided 1 8 in 3 mm Verify power at module input terminal Replace module if fuse and power ok Arc 1 8 in 3 mm or Voltage output is okay longer STEP 4 Check pilot and main burner lightoff Set the thermostat to call for heat Watch the pilot burner during the ignition sequence See if Ignition spark continues after the pilot is lit The pilot lights and the spark stops but main burner does not light S8600B H M S8610B H S8660D S8670D only The pilot lights the spark stops and main burner lights but the system shuts down O If so ensure adequate flame current as follows Turn off furnace at circuit breaker or fuse box Clean the flame
89. again followed by shutoff after 90 sec Max Open manual gas cock and make sure no gas is flowing to pilot or main burner Set thermostat below room temperature and wait one minute before continuing STEP 5 Check Normal Operation Set thermostat or controller above room temperature to call for heat Printed 3 93 204 Printed 3 93 SteamCraft 10 Service Manual Chapter 8 Make sure pilot lights smoothly when gas reaches the pilot burner Make sure main burner lights smoothly without flashback Make sure burner operates smoothly without floating lifting or flame rollout to the furnace vestibule or heat buildup in the vestibule If gas line has been disturbed complete gas leak test OPERATION Module operation can be conveniently divided into two phases for S8600 S8610 and three for S8660 S8670 The phases are Prepurge S8660 S8670 only Trial for ignition all models Main burner operation all models Figs 11 and 12 summarize the normal operating sequences of the modules Models 24 CGA 10 and 24 CEA 10 GAS LEAK TEST Paint gas control gasket edges and all pipe connections downstream of gas control including pilot tubing connections with rich soap and water solution Bubbles indicate gas leaks Tighten joints and screws or replace component to stop gas leak Recheck with soap and water Turn thermostat or controller below room temperature Make sure main burner and pilot flames go out
90. ain is not draining water check for clogged drain plumbing 6 Set the voltmeter to the Ohms scale Figure 6 23 Condenser Solenoid Valve Top 24 CEA 10 Printed 3 93 Cleveland Range Inc Page 134 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 7 Check the coil resistance across the condenser solenoid terminals e Remove wiring connections from solenoid valve s at terminal strip before making measurements On models 24 CEA 10 separate wires at terminal strip and make resistance measurements individually e If the reading is zero the coil is shorted and the solenoid valve should be replaced 8 For 24 CEA 10 models Refer to Heater Contactor Test CT 20 and CT 21 and check for 115 120 VAC across the coil terminals of the heater contactor e If the meter does not read 115 120 VAC across the coil terminals of the heater contactor continue this procedure with step 9 If the meter reads 115 120 VAC across the coil terminals of the heater contactor the condenser solenoid wiring is faulty For the top boiler check the brown brown white condenser solenoid wiring for continuity Figure 6 24 Condenser Solenoid Valve and secure connections For the bottom boiler check the yellow Bottom 24 CEA 10 white yellow condenser solenoid wiring for continuity and secure connections Replace or repair faulty wiring and connections 9 For 24 CGA 10 models Check for 115 120 VAC across the terminals of rela
91. al mode to bring the cooking compartment up to cooking temperature e Before cooking in timed mode to reduce the automatic temperature compensation time e Between cooking batches to maintain cooking temperature in the compartment Preheat the SteamCraft 10 by the following procedure 1 BEFORE PREHEATING inspect and clean the compartment After preheating the compartment will be too hot to inspect and clean safely Refer to Inspect the Cooking Compartment on page 47 2 Check the control panel settings e The ON OFF switch is in the ON top position e The TIMED MANUAL switch is in the TIMED position e The timer is set to 00 00 3 If the timer is not zeroed 00 00 press and hold the CLEAR key on the key pad control panel Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 49 4 Set the timer for one minute by pressing the number key sequence 100 The timer display reads 01 00 one minute and zero seconds If necessary refer to step 5 in Timed Cooking Procedure on page 50 for an explanation and examples of setting the time 5 Press the START STOP key to start the timer and steaming cycle e The timer display reads pause PAUS until the cooking compartment reaches proper cooking temperature e When the cooking compartment reaches proper cooking temperature the timer display shows the count down 6 When the timer reaches zero a buzzer sounds continuously Press the START STOP key to
92. am is used in the cooking process When using the SteamCraft 10 Steamer observe the following precautions e Remember at all times that steam can cause severe bums e Do not open the steamer door before steam flow stops e Stand back when opening the compartment door Open the door slightly to allow steam to vent before looking or reaching into cooking compartment e Do not reach into the cooking compartment until the steam has cleared e Do not reach into steamer or handle hot items without wearing heat proof gloves Wet or damp gloves conduct heat and may cause burns when touching hot items The SteamCraft 10 requires a minimum of service if properly operated and maintained by trained personnel The following steps will help keep the steamer in a safe efficient operating condition 1 Train all personnel who will use the steamer Make sure personnel know how to operate the steamer clean the interior and exterior drain the unit and descale the steam generator 2 Operating personnel must be able to recognize problems and know how to take corrective action as outlined in the Chapter 4 troubleshooting chart 3 Conduct regular steamer inspections Check for water line leaks door seal and drain leaks clogged drain steam generator scale buildup and steamer control malfunctions 4 Follow the instructions for steamer maintenence in Chapter 4 5 Before each use of the SteamCraft 10 inspect the drain and screen for blockage Inspec
93. ances To shut off gas use the shutoff valve in the supply line to the appliance Do not use the shutoff valve in the which is provided as part of a combination control 3 Install the automatic intermittent pilot system in strict accordance with the manufacturer s installation instructions 4 Turn on all gas and electricity to the appliance 5 Determine that the appliance transformer has adequate capacity by following the steps outlined be low a Compute the approximate current draw by adding the current draw of the automatic intermittent pilot system to 1 the current draw of the associated valving and 2 the current draw of any relays or other devices operated by the transformer b Multiply the total current draw as computed above by 24 V to determine the total VA volt ampere required c The total VA volt ampere required should be equal to or less than the VA rating of the transformer d If the total VA volt ampere required is greater than the VA rating of the transformer the transformer must be replaced with a Class 2 transformer of adequate rating 6 Check the heat anticipator in the comfort thermostat to determine if it is properly adjusted to the current draw of the control system Follow the thermostat manufacturer s instructions 7 Make certain wiring connections are tight and wires are positioned and secured so they will not be able to contact high temperature locations 8 Conduct a Gas Leakag
94. and R1 for continuity and secure connections Replace or repair faulty wiring and connections c Test the ON OFF switch CT 3 Rinse solenoid valves The rinse solenoid valve energizes for only 3 minutes during the blowdown cycle If testing takes longer than 3 minutes restart the blowdown cycle by setting the ON OFF switch first to ON and then to OFF Refer to Figures 6 9 and 6 10 1 Set the voltmeter TO the 250 VAC scale 2 Check voltage across the rinse solenoid terminals s If the meter reads 0 VAC the valve has failed to open Replace the rinse solenoid valve e If the meter reads 115 120 VAC for more than 3 minutes after starting the blowdown cycle check and replace the 3 minute timer according to the procedure in CT 2 3 Check for 115 120 VAC across the rinse solenoid terminals e If the meter reads 115 120 VAC across the solenoid terminals either the solenoid valve is faulty or the plumbing between the valve and the float cylinder is blocked F gure 6 9 Float Rinse Solenoid Valves 24 CEA 10 Cleveland Range Inc Printed 3 93 Page 126 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 a Check the tubing and fittings between the valve the float cylinder and the spray nozzle for blockage or damage Replace faulty fittings or tubing b If the tubing and fittings are good the solenoid valve is faulty Replace the rinse solenoid valve If the meter reads 0 VAC across the rinse soleno
95. and Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Table of Contents continued Chapter Start the Steam Supply Inspect the Cooking Compartment Preheat the Cooking Compartment s Place Food into The Cooking Compartment s Select the Operating Mode Timed Cooking Procedure Manual Cooking Procedure Remove Food from The Cooking Compartment s Power OFF Automatic Blowdown Blowdown Frequency Blowdown Procedure Shut Down And Cleaning At End Of Day Or Shift CHAPTER 4 PREVENTATIVE MAINTENANCE AND TROUBLESHOOTING INTRODUCTION MAINTENANCE RECORDS DAILY MAINTENANCE Blowdown Steam Generator Clean SteamCraft 10 WEEKLY MAINTENANCE Clean Drain MONTHLY MAINTENANCE Descale Steam Generator YEARLY MAINTENANCE Clean Water Line Strainer TROUBLESHOOTING NOTES CHAPTER 5 COMPONENT AND CIRCUIT FUNCTIONS INTRODUCTION Models Covered In This Chapter Figures and Illustrations SteamCraft 10 Variations Steam Generator Power Source Control Panel Type THEORY OF OPERATION Steam Generator Water Filling Cycle Steam Generator Preheating Steaming Functions For Model 24 CEA 10 Steaming Functions For Model 24 CGA 10 Gas Burner Ignition and Combustion Functions Model 24 CGA 10 Burner Ignition and Control System Cleveland Range Inc Page Printed 3 93 Page iii Pageiv SteamCraft 10 Service Manual Models 24 CGA 10 and 24 CEA 10 Table of Contents continued Chapter Condenser and Drain Functions Condenser Oper
96. art any appliance e Do not touch any electrical switch e Do not use any phone in the building e Immediately call the gas supplier from a phone away from the building Follow the gas supplier s instructions e If the gas supplier cannot be reached call the fire department Pressure Testing The Gas Supply Lines Do not permanently supply gas to these lines until they have been tested When testing these lines observe the following 1 A gas lines and fittings assembled during installation are outside of the SteamCraft 10 Check these connections for proper tightness 2 Prepare the Steam Craft 10 valves and connections for the test pressure being used The same pressure criteria apply when testing lines prior to the manual gas shut off valve e The appliance and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 14 water column 1 2 psi or 3 45 kPa e The appliance must be isolated from the gas supply piping system by closing its individual manual shut off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 14 water column 1 2 psi or 3 45 kPa 3 Refer to Figure 2 14 and open the main shut off valve for the steamer gas supply line 4 Test the pipe joints for leaks with soap and water solution e Paint pipe joints with rich soap and water solution e Bubbles indicat
97. artment resulting in reduced cooking performance equipment damage and a hazard to the operator A blocked or slow drain may cause e Hot water to collect in the compartment and spill out when the compartment door opens e Pressure fluctuations in the compartment resulting in steam leaks around the door gasket or compartment implosion e Reduced convection in the compartment reducing cooking performance Before every steaming operation inspect the cooking compartment and remove any food scraps or debris from the racks walls and floor of the compartment Pay particular attention to the drain and drain screen 1 DO NOT USE the steamer if water stands in the drain opening Refer to Chapter 4 drain cleaning instructions immediately 2 Remove any food or debris that is blocking the drain or screen 3 Be sure the screen covers the drain The screen prevents large pieces of food from entering and blocking the drain To preheat the Steam Craft 10 run a brief cooking cycle with no food in the cooking compartment This heats the compartment to cooking temperature and brings all steaming functions to full capacity before cooking begins The temperature compensation circuit built into the key pad timer is an automatic preheat feature As a result preheating is not usually required with the key pad control panel however preheating can be used e At the beginning of a shift to prepare the steamer for operation e Before cooking in manu
98. at e For model 24 CGA 10 refer to Figure 6 17 and connect the voltmeter leads to the L BLU wire connections at the gas control transformer and RI terminal 9 Printed 3 93 Cleveland Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 L BLUE PRE HEAT THERMOSTAT Page 129 TERN STRIP Figure 6 16 Float Assembly and Components Figure 6 17 Float Assembly and Components 24 CEA 10 24 CGA 10 5 Set the ON OFF switch to the ON position and check the voltmeter readings with no water in the float cylinder e If the meter reads 115 120 VAC continue this procedure with step 7 e If the meter reads 0 VAC continue this procedure with step 6 6 Check for 115 120 VAC from the TIMED MANUAL switch orange wire to the ON OFF switch white black wire connection e If the meter does not read 115 120 VAC the fault is not in the float assembly a Test the ON OFF switch b Test the TIMED MANUAL switch c Test the contactor for an open coil e Ifthe meter reads 115 120 VAC either the float or the float wiring circuit is faulty a Check the wiring between the TMED MANUAL switch the float the contactor and the ON OFF switch for continuity and secure connections Replace or repair faulty wiring and connections b If the wiring and connections are good the float assembly is faulty Replace the float assembly 7 About one minute after the fill solenoid valve opens the water begins to fill the float cylin
99. at main disconnect switch See note 1 Cleveland Range Inc Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 4 Page 69 OPERATOR S TROUBLESHOOTING GUIDE continued PROBLEM Steam and or water draining around compartment door Reduced steam flow into cooking compartment Steam flow does not stop when timer stops Water leaking from bottom of cabinet Water leaking from water pipes or drain lines Food takes too long to cook Compartment bottom dirty with food drippings Cleveland Range Inc POSSIBLE CAUSE Drain clogged or covered Door gasket or door parts worn Steamer not level Steam generator scale buildup Electric models only Voltage too low for unit Electric models only Faulty heating element or controls Operating in manual mode Inoperative controls inside cabinet Broken or loose plumbing inside steamer cabinet Plumbing needs repair Not enough steam movement in compartment Hot water connected to condenser line REMEDY REFERENCE Clean drain with USDA approved drain cleaner See note 1 See note 2 Descale steam generator with USDA approved descaler See note 4 See note 3 Switch to timed mode for timer to be effective Turn off electricity at main disconnect switch See note 1 Turn off electricity at main disconnect switch and close water supply valve s See note 1 See note 3 Make prop
100. ater from the steam generator Refer to Drain Valve Operation on page 81 If water flows from BOTH the float cylinder rinse nozzle and the 3 way valve drain port the 3 Minute Timer the water fill rinse and drain 3 way valves are functioning properly Continue the procedure with test IT 1 6 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 113 IT 1 3 Does water flow from EITHER the float cylinder rinse nozzle or the 3 way valve YES NO NOTE During the blowdown cycle the 3 Minute Timer activates the fill and rinse solenoids opening the valves If the timer malfunctions neither solenoid will activate and open its valve No water flow from both the float rinse nozzle and the 3 way valve indicates three possible malfunctions e The 3 Minute timer is malfunctioning e Both the rinse and fill solenoid valves have failed simultaneously e Both the rinse and drain solenoid valves have failed simultaneously A single component failure is more probable than a double simultaneous failure 1 Test the 3 Minute timer according to component test CT 2 2 If the 3 Minute timer is working properly according to component test CT 2 proceed to IT 1 4 and begin testing the fill solenoid valves IT 1 4 Does water flow through the float cylinder rinse nozzle YES NO If water does not flow through the rinse nozzle 1 Check the rinse nozzle solenoid valve and associated plumbi
101. ating components turn on to heat the water to stand by temperature These components cycle off and on to maintain the preheat temperature e For Pressure Models 24 CEP 10 and 24 CGP 10 the amber light in the STEAM switch turns on The heating components remain OFF and do not turn ON until the STEAM switch is pressed a Water continues to fill the generator and the water level in the float continues to rise b After a few minutes the water in the steam generator reaches the upper limit and the fill valve closes e The water level in the float cylinder stops rising about one inch from the top of the cylinder e If the water level continues to rise above the top of the float cylinder have a qualified service representative check the float circuit For Pressure Models Only 24 CEP 10 and 24 CGP 10 momentarily press the Steam switch a The amber STEAM switch light turns off and the generator heating components turn on The steam generator begins to heat the water to steam b About 10 minutes after starting the steam generator heating compo nents the Steam Pressure Gage on the steam generator control panel Figure 2 17 should register 10 psi Set the TIMED MANUAL switch to MANUAL the steaming cycle starts a The condenser solenoid clicks open and condenser flow starts After a few seconds a small stream of water flows from the drain pipe If no drain water flows check that the condenser water supply valve is open an
102. ation Drain Valve Functions Shutdown Steam Generator And Float Cylinder Rise Functions STEAMCRAFT 10 ELECTRICAL CIRCUITS Model 24 CEA 10 High Voltage Circuit 120 VAC Circuit STEAMCRAFT 10 ELECTRICAL CIRCUITS Model 24 CGA 10 STEAMCRAFT 10 TIMER CIRCUITS ELECTRICAL CIRCUIT COMPONENTS Terminal Block ON OFF Switch TIMED MANUAL Switch 3 Minute Timer Float Assembly Rinse Solenoid Valve Drain Solenoid Valves Water Fill Solenoid Valves Condenser Solenoid Valves Preheat Thermostat Key Pad and Dial Timers Electronic Key Pad Timer Compartment Thermostat Electronic Key Pad Units Only Mechanical Timer 3 Second Timer And Buzzer Mechanical Timer Units Only Heater Element Model 24 CEA 10 Dryer Element Model 24 CEA 10 High Temperature Limit Switch Combustion Control Module Model 24 CGA 10 Combustion Air Blower Air Prover Pressure Switch Pilot Spark Igniter Automatic Gas Valve Steam Relief Solenoid Valve Model 24 CGA 10 Compartment Steam Solenoid Valves Model CGA 10 CHAPTER 6 COMPONENT TESTING GUIDE INTRODUCTION Models Covered In This Chapter Figures And Illustrations Nominal Voltage Reference Printed 3 93 Page 80 80 81 82 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 Table of Contents continued Chapter COMPONENT TESTING FUNDAMENTALS Visual Check Connections and Wiring Solenoid Valves General Considerations Normally Open And Normally Closed Valves And Contacts Water Pressure and Cont
103. c Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter Page 5 MODEL 24 CGA 10 DESCALING PORT UNDER EXHAUST VENT EXHAUST VENT MODEL 24 CGA 10 ONLY MODEL 24 CEA 10 DESCALING PORTS INSIDE SERVICE ACCESS PANEL RIGHT SIDE SERVICE ACCESS PANEL UPPER COOKING COMPARTMENT DOOR AIS VENTS DOOR LATCH UPPER COOKING COMPARTMENT CONTROL PANEL ON OFF POWER SWITCH LOWER COOKING COMPARTMENT eo LOWER COOKING COMPARTMENT DOOR LATCH CONTROL PANEL DRIP TRAY PRODUCT IDENTIFICATION PLATE ON LEFT SIDE ACCESS PANEL AP VENTS FRONT ACCESS PANEL ADJUSTABLE LEVELING FEET 6 INCH LEGS Figure 1 2 SteamCraft 10 Models 24 CGA 10 and 24 CEA 10 with Dial Timer Control Panel Sheet 3 of 4 Page 6 Chapter 1 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 DESCALING PORT UNDER EXHAUST VENT EXHAUST VENT MODEL 24 CGP 10 ONLY RIGHT SIDE SERVICE ACCESS PANEL UPPER COOKING COMPARTMENT DOOR DOOR LATCH AIR VENTS UPPER COOKING COMPARTMENT CONTROL PANEL ON OFF POWER SWITCH LOWER COOKING COMPARTMENT oe LOWER COOKING COMPARTMENT DOOR LATCH CONTROL PANEL DRIP TRAY PRODUCT IDENTIFICATION PLATE ON LEFT SIDE ACCESS PANEL AIR VENTS FRONT ACCESS PANEL ADJUSTABLE LEVELING FEET 6 INCH LEGS Figure 1 2 SteamCraft 10 Models 24 CGP 10 and 24 CEP 10 with Dial Tim
104. ch according to component test CT 18 2 Check the electronic timer module according to component test CT 17 IT 4 8 Does the timer START STOP key pause and restart the timer countdown YES NO NOTE Once the timer countdown has begun it can be stopped by pressing the timer START STOP key Press this key once to pause the countdown and again to restart the countdown Replace the timer IT 4 9 Does the timer CLEAR key zero the timer YES NO NOTE Pressing the timer CLEAR key when the countdown is paused returns the cooking time setting zero 00 00 Lo Replace the timer Set the timer of the upper control panel for 5 minutes and press the START STOP key NOTE After performing test IT 4 7 the Timer is zeroed A cooking time must be set to continue testing Check the electronic timer according to component test CT 17 Cleveland Range Inc Printed 3 93 Page 122 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 IT 4 11 Do the heater contactors and heaters shut off when the key pad display reaches zero YES NO Replace the Timer Repeat Phase 4 tests IT 4 6 through IT 4 11 for the lower compartment control panel 1 Observe the upper compartment timer is set to the zero 00 00 setting 2 Cool the water in the steam generator to preheat temperature by running a partial blowdown cycle a Set the ON OFF switch to the OFF position for one minute This will drain about a half of the hot water from
105. compartment TIMED MANUAL switch to the MANUAL position NOTE Selecting MANUAL mode for either cooking compartment activates the condenser valve and the heater contactor for that compartment First test the upper cooking compartment IT 3 3 Is the condenser spray operating YES NO NOTE During steaming functions a continuous stream of water sprays into the condenser fitting Check the Lunch air gap between the drain piping and the floor drain for this water flow No water flow from the condenser to the floor drain indicates four possible malfunctions 1 Check the TIMED MANUAL switch according to component test CT 9 2 Check the condenser solenoid valve and adjoining plumbing for blockage Cleveland Range Inc Printed 3 93 Page 118 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 3 Check the drain lines between the condenser fitting and floor drain for YES Continued blockage 4 If the plumbing drain lines and drain valve are not blocked refer to component test CT 10 and test the condenser solenoid valve IT 3 5 Does steam enter the cooking compartment after the heaters have been on for a few minutes YES NO NOTE After the steam generator has begun steaming a steady flow of steam constantly fills the cooking compartment Check for blockage in the plumbing between the cooking compartment and the strain generator IT 3 6 Does a steady flow of steam constantly fill the cooking compartment
106. condition EXHIBIT A OF ANSI STANDARD Z21 71 FOR AUTOMATIC INTERMITTENT PILOT IGNITION SYSTEMS FOR FIELD INSTALLATION Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 8 EXHIBIT B PROCEDURE FOR INSTALLING AUTOMATIC INTERMITTENT PILOT SYSTEMS Prior to beginning this procedure a preliminary ex amination of the appliance and the automatic in termit tent pilot system should be made to determine that the automatic intermittent pilot system can be properly applied to the appliance This procedure is intended as a guide to aid in safely installing a listed automatic intermittent heat system on an existing listed appliance equipped with an atmos phere gas burner s and not of the direct vent type This procedure is based on the assumption that the history of the specific installation has been one of safe and satisfactory operation This procedure is predicated on central furnace and boiler installations and it should be recognized that gen eralized procedures cannot anticipate all situations Accordingly in some cases deviation frorn this procedure may be necessary to determine safe operation of the equipment The following steps should be followed in making the modifications 1 Perform a safety inspection of the existing appli ance installation See Exhibit A for a recommended pro cedure for such a safety inspection 2 Shut off all gas and electricity to the appli
107. cooking time The cooking time display contains four digits The left two digits are minutes and the right two digits are seconds The display 12 34 is set for 12 minutes and 34 seconds To set the cooking time a Change the required cooking time to minutes and seconds b Press the number keys for the minutes and then press the number keys for the seconds c If the cooking time is 99 seconds or less only press the number keys for seconds Example 1 Set the timer for 1 hour and 15 minutes Change 1 hour 60 min and 15 minutes to 75 minutes Press the following number keys in sequence 7500 The display reads 75 00 when set for 1 hour and 15 minutes Example 2 Set the timer for 15 minutes Change the time to 1 minute and 30 seconds Press the following number keys in sequence 130 The display reads 01 30 when set for 1 5 minutes Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 51 All seconds method Change the 1 5 minutes to 90 seconds and press 9 0 The display reads 00 90 when set for 1 5 minutes When the timer starts the display automatically changes to minutes and seconds 01 30 6 Press the START STOP key to start the timer When the START STOP key is pressed the steam generator begins heating the water to steam Shortly steam fills the cooking compartment a The timer display reads PAUS until the cooking compartment reaches proper cooking temperature b Whe
108. d for 3 0 to 5 0 W C range it cannot be field adjusted outside this range This is also true for valve adjust to the 9 0 to 12 0 W C range for LP 1 Turn off power to system at main fuse or circuit breaker 2 Attach a manometer to the outlet pressure tap of the gas valve Turn on power to the system and energize valve Remove adjustment seal screw see fig 5 To DECREASE outlet pressure turn the adjusting socket set screw beneath the adjustment seal screw counterclockwise To INCREASE outlet pressure turn the adjusting socket set screw clockw ise Adjust regulator until pressure shown on manometer matches the pressure specified on the appliance rating plate 6 Replace the cover screw Cycle the valve two or three times to verify regulator setting Di Val e Printed 3 93 Cleveland Range Inc
109. d in Phase 3 above Only a failure of the TIMED MANUAL switch and or the mechanical timer can prevent heater operation 1 Check the TIMED MANUAL switch according to component test CT 9 2 Check the mechanical timer according to component test CT 13 Cleveland Range Inc Printed 3 93 Page 120 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 IT 4 3 Do the heater contactors and heaters shut off when the dial reaches the zero mark YES NO oem Replace the Timer t IT 4 4 Does the timer keep accurate time YES NO o_o J Replace the Timer IT 4 5 Does the buzzer sound for approximately three seconds when the timer is zeroed YES NO eee Failure of any of three components could prevent the buzzer from sounding 1 Check the dial mechanical timer according to component test CT 13 2 Check the 3 second timer according to component test CT 14 3 Check the buzzer according to component test CT 15 Repeat Phase 4 tests IT 4 1 through IT 4 5 for the lower compartment control panel 1 Set the upper compartment timer dial to the zero position 2 Cool the water in the steam generator to preheat temperature by running a partial blowdown cycle a Set the ON OFF switch to the OFF position for one minute This will drain about a half of the not water from the steam generator b Set the ON OFF switch back to the ON position This will replace the drained hot water with cool water 3 Perform Phase 4 mechanical
110. d main valve opens and gas flows to the main burner where it is ignited by the pilot burner On lockout models the flame current also holds the safety lockout timer in the reset normal operating condition When the call for heat ends both valve operators are de energized and both valves in the gas control close 205 69 0463 Printed 3 93 206 SteamCraft 10 Service Manual Chapter 8 TROUBLESHOOTING 14 Printed 3 93 1 The following service procedures are provided as a general guide Follow appliance manufacurer s service instructions if available 2 On lockout and retry models meter readings between gas control and ignition module must be taken within the trial for ignition period Once the ignition module shuts off lockout models must be reset by setting the thermostat down for at least one minute before continuing On retry models wait for retry or reset at the thermostat 3 If any component does not function properly make sure it is correctly installed and wired before replacing it 4 The ignition module cannot be repaired If it mal functions it must be replaced 5 Only trained experienced service technicians should service intermittent pilot systems Perform the checkout on page 11 as the first step in troubleshooting Then check the appropriate troubleshooting guide Fig 14 or 15 and the schematic diagram Figs 16 17 to pinpoint the cause of the problem see Ignition System Checks below
111. d the lines are connected properly b If the water level in the steam generator is above the safety limit about 1 inch above the bottom of the float cylinder the heater components turn on c Steam begins to enter and fill the compartment from the nozzles A small quantity of water may drip from the nozzles until steam clears the lines With the SteamCraft 10 in Manual Cooking Mode the unit will steam continuously until turned off or set to Timed Cooking Mode Set both upper and lower compartment control panels for MANUAL operation Steam should fill both cooking compartments Check for steam leaks around the door gaskets Observe the steam generator water float cylinders while steaming contin ues As water steams out of the generator the level in the cylinders should fall and then rise as the system refills the generator This water fill cycle continues as long as the SteamCraft 10 continues to steam As the unit continues to steam in Manual Cooking Mode test the no water safety circuit Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 GIS iGo B08 Figure 2 16 Key Pad Control Panel Figure 2 17 Steam Generator Controls Pressure Units Only a b SteamCraft 10 Service Manual Chapter 2 Page 37 Close the Steam Craft 10 manual water supply valve Observe the steam generator float cylinders while steaming continues As water steams out of the generator the water level drops below the safet
112. de service panel and access leads of the preheat thermostat mounted on the steam generator If the unit has been steaming allow enough time for the steam generator to cool NOTE Rapid cooling may be facilitated by refilling the generators with cold water Turn the ON OFF switch to OFF to initiate the blowdown cycle After about a minute turn it back to ON WARNING Severe electrical shock and equipment damage may result from uncovered preheat thermostat leads One lead is hot 115 120 VAC when the ON OFF switch is ON Page 132 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 BC p Figure 6 19 Preheat Thermostat 24 CEA 10 Figure 6 20 Preheat Thermostat 24 CGA 10 CT 9 TIMED MANUAL On model 24 CGA 10 carefully disconnect leads WH ORG and WH PINK WH BLU from the pre heat thermal switch Tape the ends of all leads to avoid shocks and short circuits during testing On model 24 CEA 10 carefully disconnect leads PUR and BLK BLU from the pre heat thermal switch Tape the ends of all leads to avoid shocks and short circuits during testing Adjust the ohmmeter for a zero reading on lowest scale Refer to Figures 6 19 and 6 20 and connect the ohmmeter leads across the preheat thermal switch When the steam generator has cooled check the ohmmeter reading e If the meter reads infinite ohms across pre heat thermal switch terminals replace the thermal switch e If the meter reads 0 ohms across p
113. der Check the bottom of the cylinder e If water begins to fill the float cylinder continue this procedure with step 9 e If water does not begin to fill the float cylinder continue this procedure with step 8 Cleveland Range Inc Printed 3 93 Page 130 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 8 Connect the voltmeter across the float high level switch Refer to Figure 6 10 and connect the voltmeter leads to the red wire connections at the fill solenoid and test point 2 Check for 115 120 VAC across these test points e If the meter reads 115 120 VAC across these test points the high level switch is faulty Replace the float assembly e H the meter reads 0 VAC test the fill solenoid Valve 9 As the water level rises to about one inch in the float cylinder the lower float begins to move up the shaft Check the voltage readings across the float low level switch e If the meter reads 115 120 VAC across the float low level switch the switch is faulty Replace the float assembly For 24 CEA 10 models e H the meter reads 0 VAC across the float low level switch and the contactor does not energize the float low level switch is good Test the contactor e H the meter leads 0 VAC across the float low level switch and the contactor energizes continue this procedure with step 10 For 24 CGA 10 models e If the meter reads 0 VAC across the float low level switch and the relay R1 does not energi
114. drain piping to the floor drain YES NO NOTE During blowdown a continuous stream of water should flush through the 3 way valve drain port through the drain plumbing and into the floor drain Check the 1 inch air gap between the drain piping and the floor drain for this water flow No water flow from the 3 way valve to the floor drain indicates three possible malfunctions e The plumbing between the drain valve and fill valve or drain valve and floor drain is blocked e The 3 way drain valve is malfunctioning e The fill solenoid valve is malfunctioning Check the drain solenoid valve and adjoining plumbing for blockage 2 Check the drain line and air gap between the line and floor drain for blockage 3 If the plumbing drain lines and drain valve are not blocked refer to component test CT 1 and test the drain solenoid valve 4 If the 3 way valve is functioning properly check the steam generator water fill solenoid valve and associated plumbing for blockage 5 Ifthe water fill plumbing and valve are not blocked refer to component test CT 4 and test the water fill solenoid valve IT 1 6 Does the blowdown cycle last for three minutes YES NO NOTE The 3 minute timer stops the blowdown cycle approximately three minutes after starting the blowdown cycle Watch the float rinse nozzle and the drain pipe to floor drain gap Three minutes after switching the main disconnect to the ON position there should be no water f
115. e 1 1 illustrates typical SteamCraft 10 Product Information Plates Refer to me Figure 1 2 for the location of the plates Page 2 Chapter 1 SteamCraft 10 Service Manual Printed 3 93 CLEVELAND RANGE INC CLEVELAND OHIO MODEL NO So a MODELE eege SERIAL NO NO DE SERIE Se ee eee GAS aor od PRESSURE j W C d Re GAZ PRESSION LCE FOR USE ON COMBUSTIBLE FLOORS MINIMUM CLEARANCE FROM COMBUSTABLE CONSTRUCTION LEFT SIDE RIGHT SIDE COTE GUACHE COTE DROIT CAUTION FOR SUPPLY CONNECTION USE ONLY COPPER WIRE SUTTABLE FOR AT LEAST C ATTENTION EMPLOYER DES FILS D AUMENTATION ADEQUATS POUR KM B 106090 C e CLEVELAND RANGE INC CLEVELAND OHIO MODEL No E SERIAL NO Se STEAM GENERATOR B T U PER HR MANIFOLD PRESSURE ________ w c Eet ans 783 150 LB T PER EU FT STEAM COOKERS FOR USE ON COMBUSTABLE FLOORS AND GENERATORS MINIMUM CLEARANCE COMBUSTIBLE NONCOMBUSTIBLE CONSTRUCTION CONSTRUCTION Ca Back __ m DC m sow C m Cn vous Fast Lard L ze ee ea eg ZE Gees CAUTION FOR SUPPLY CONNECTION USE ONLY COPPER WIRE SUTABLE ror a we CJ INTENDED FOR OTHER THAN HOUSEHOLD USE 0 1044 Figure 1 1 SteamCraft 10 Product information Plates Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Cleveland Range Inc Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 1 Page 3
116. e Quantity required e Description Be sure to analyze the repair disassembly and assembly required Order any gaskets mounting hardware filters or other consumables required The address for Cleveland Range Inc is on the front cover of this manual or call USM 800 782 0040 Canada 416 663 7770 Cleveland Range Inc Printed 3 93 Page 150 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Access Panels and External Components Figure 7 2 Compartment Door and Hinge Assemblies Figure 7 4 Steam Generator Assembly Figure 7 9a Steamer Compartment Group Figure 7 3 Steam Generator Control Panel Assembly Figure 7 7 Control Panel Electronic Figure 7 5 Mechanical Figure 7 6 Drain Flow Control Components Figure 7 120 Electrical Components Assembly Figure 7 8a Water iniet System Figure 7 110 Figure 7 1A Major Component Groups 24 CEA 10 Printed 3 93 Cleveland Range Inc SteamCraft 10 Service Manual Chapter 7 Page 151 Models 24 CEA 10 and 24 CGA 10 Steam Generator Assembly Coure ZHP Access Ponels ond External Components Figure 7 2 Compartment Door and Hinge Assemblies Figure 7 4 Float Assembly Figure 7 10b Stearn Flow Control _ Figure 7 13 Steamer Compartment Group Figure 7 3 Gas Combustion Blower Chamber Figure 7 15 ii y SS Steam Generator Control SS Panel Assembly SS Figure 7 7 ES
117. e Test of the appliance piping and control system downstream of the shutoff valve in the supply line to the appliance 9 a Adjust the thermostat to its highest temperature setting and test manifold pressure and adjust the pressure regulator to match original input as required refer to Exhibit A step 9b b Visually determine that main burner is burning properly i e no floating lifting or flashback Ad just the primary air shutter s as required 10 If the appliance is equipped with high and low flame control or flame modulation check for proper main burner operation at both high and low flame 11 Determine that the pilot is igniting and burning properly and that main burner ignition is satisfactory by interrupting and re establishing the electrical supply to the appliance in any convenient manner Make this de termination with the appliance burner both cold and hot Perform this step as many times as is necessary to satisfy yourself that the automatic intermittent pilot system is operating properly 12 Test the pilot safety device 1 to determineifitis operating properly and 2 for turndown characteristics according to the manufacturer s installation instructions No adjustments should be made other than those recom mended by the system manufacturer 13 Sequence the appliance through at least three op erating cycles 14 Applicable only to furnaces Check both the limit controller and the fan controller for pr
118. e a gas leak e Tighten joints and or replace component to stop gas leak e If you smell gas turn off the main gas shut off valve and refer to Gas Leak Instructions on page 43 5 Reassemble any connections or piping disassembled in step 2 Repeat steps 3 and 4 to test these reassembled connections 6 Close the main shut off valve for the steamer gas supply line Page 30 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 INDICATOR Manual Vaive Shown in OFF position Used on Model 24 CGA 10 Used on Model 24 CGP 10 Figure 2 15 Automatic Gas Valve Bleed Air from the Gas Supply Lines After the gas supply line is assembled connected to the SteamCraft 10 and pressure tested satisfactorily bleed the air from the line The SteamCraft 10 gas control module uses an intermittent gas pilot The module sparks the pilot igniter and sends gas to the pilot simultaneously If the pilot flame sensor does not detect pilot ignition within a few seconds the control module stops both pilot spark and gas flow Bleeding the entire supply gas line through this type of gas control system may take quite a long time To save time bleed the air through a loosened fitting Bleed the gas supply line by the following procedure 1 Turn off electrical power to the SteamCraft 10 at both the panel ON OFF switch Figure 2 16 and the main disconnect switch Figure 2 8 Rec ommended Electrical Layout 2 R
119. e beginning wiring to prevent electrical shock or equipment damage 2 If anew gas control is to be installed turn off gas supply before starting installation Conduct Gas Leak Test according to gas control manufacturer s instructions after the gas control is installed 3 If module must be mounted near moisture or water provide suitable waterproof enclosure PERFORM PREINSTALLATION SAFETY INSPECTION The preinstallation checks described in ANSI Standard Z21 71 on page 19 must be done before the replacement module is installed If a condition which could result in unsafe operation is detected the appliance should be shut off and the owner advised of the unsafe condition Any potentially unsafe condition must be corrected before proceeding with the installation Maintenance Requirements In Severe Environments Cleveland Range Inc that will limit environmental contamination ANEMA4 enclosure is recommended for the ignition module see the Electronic Ignition Service Manual form 70 6604 HEAT The controls can be damaged by excessively high temp erature Make sure the maximum ambient temperature at the control locations will not exceed the rating of the control If the appliance normally operates at very high temperatures insulation shielding and air circulation may be necessary to protect the controls Proper insulation of shielding should be provided by the appliance manufacturer make sure adequate air circulation is ma
120. e burners do not light within 9 minutes of turning the unit ON there may be air in the gas supply lines Proceed to step 5 4 For Pressure Models Only 24 CGP 10 and 24 CEP 10 Turn ON the electric al power to the SteamCraft 10 at the control panel ON OFF switch a The red indicator the switch lights and water fills the steam generator b After about 5 minutes the amber indicator the STEAM switch lights c When the amber light turns on press the STEAM switch on the control panel The burners should light with a distinctive sound e If the burners light within one minute of pressing the Steam switch the igniter controls are functioning End this test procedure here e If the burners do not light within one minute of pressing the Steam switch there may be air in the gas supply lines Proceed to step 5 5 Turn off electrical power to the SteamCraft 10 at both the panel ON OFF switch Figure 2 16 and the main disconnect switch Figure 2 8 Rec ommended Electrical Layout NOTE When the burners fail to ignite a safety circuit in the igniter control de energizes the system and closes the automatic gas valve The safety circuit resets when the SteamCraft 10 is turned OFF and turned back ON 6 Refer to Bleed Air from the Gas Supply Lines and bleed any trapped air from the gas supply lines Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Page 33 SteamCraft 10 Service Manual Chapter 2 Final Setup and Checkout Installation
121. e in the supply line to the appliance Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restrictions leakage or corrosion or other deficiencies which could cause an unsafe condition Shut off all gas to the appliance and shut off any other fuel burning appliance within the same room Use the shutoff valve in the shutoff valve in the supply line to each appliance Inspect burners and crossovers for blockage and corrosion Applicable only to warm air heating appliances Inspect heat exchangers for cracks openings or excessive corrosion Applicable only to boilers Inspect for evidence of water or combustion product leaks Insofar as is practical close all building doors and windows and all doors between the space in which the appliance is located and other spaces of the building Turn on clothes dryers Turn on any exhaust fans such as range hoods and bathroom exhausts so they will operate at maximum speed Do not operate a summer exhaust fan Close fireplace dampers If after complet ing steps 7 through 12 it is believed sufficient combus tion air is not available refer to 1 3 4 to the National Fuel Gas Code 2223 1 for guidance Place in operation the appliance being inspected Follow the lighting instructions Adjust thermostat so appliance will operate continuously a Determine that the pilot is burning properly and that main burner
122. e increased depending on equipment usage and water quality If problems do occur refer to the Troubleshooting Guide in this chapter For more information on product and services contact your nearest authorized service representative The inside rear cover of this manual lists service centers nationwide Make a file solely for maintenance records Keep a written record of daily weekly monthly and yearly maintenance These records will protect war ranty coverage help personnel to know when to perform various mainte nance procedures and assist service personnel Each record should include at least e The date of the service or maintenance e A description of the service maintenance or repair performed Include part numbers if applicable e Copies of purchase order s and invoice s for repair parts and service e The name and signature of the person performing the maintenance or service Blowdown the steam generator at least every four hours according to steam generator blowdown instructions in Chapter 3 Clean interior and exterior of the SteamCraft 10 according to shut down instructions in Chapter 3 CAUTION Steam leaks pressure buildup in the cooking com partment and poor steaming performance can be caused by a blocked drain line or screen Blocked or slow drains are dangerous because hot water can collect in the compartment and spill out when opening the compartment door The SteamCraft 10 is equipped with a drain scree
123. e joints with rich soap and water solution Bubbles indicate gas leak Tighten joints to stop leak Recheck with soap and water STEP 2 Review Normal Operating Sequence and Module Cleveland Range Inc TERMINAL ON OLD GND Burner SteamCraft 10 Service Manual Chapter 8 203 terminals on the old module Connect these two wires with a solderless connector 2 Tag and remove the remaining wires from the old module 3 Remove the old module and mount the new one in the same location 4 Reconnect the remaining wires as shown in Table 4 5 Increase the termostat anticipator setting by 9 2 A TABLE 4 TERMINAL CROSS REFERENCE TERMINAL ON NEW MODULE MODULE 25V 1 24 V GND TH W 24V MV MV MV PV MV PV PV PV GND Burner Specifications See OPERATION page 12 and APPLICATION page 1 Step 3 Reset the Module Turn the thermostat to its lowest setting Wait one minute As you do steps 4 and 5 watch for points where operation deviates from normal Refer to Troubleshooting Chart to correct problem Step 4 Check Safety Shutoff Operation This step applies to lockout and continuous retry modules only Turn gas supply off Set thermostat or controller above room temperature to call for heat Watch for spark at pilot burner either immediately or following prepurge See device label Time spark from start to shutoff See device label On S8600M wait 6 min nom Ignition sequence should start
124. e yellow wire connection on the bottom compartment e If the meter reads 120 VAC the high temperature limit switch is good End this procedure here e If the meter does not read 120 VAC continue this procedure with step 5 5 Check for 120 VAC across the high temperature limit switch terminals e If the meter reads 120 VAC replace the high temperature limit switch e If the meter reads 0 VAC continue this procedure with step 6 6 Check for 120 VAC from the TIMED MANUAL switch orange wire connection to the ON OFF switch red wire connection e If the meter does not read 120 VAC between these test points test the TIMED MANUAL switch If the meter reads 120 VAC between these test points the fault is not in the high temperature limit switch a On the top compartment check the black and brown wires to the high temperature limit switch float assembly and the contactor for TIMED MANUAL COND SWITCH SOLENOID Figure 6 42 High Limit Switch Assembly 24 CEA 10 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 145 continuity and secure connections Replace or repair faulty wiring and connections On the bottom compartment check the black and yellow wires to the high temperature limit switch float assembly and the contactor for continuity and secure connections Replace or repair faulty wiring and connections b Test float low limit switch c Test the co
125. ed on CAUTION Steam leaks around the door cooking compartment flooding reduced cooking performance and compartment implosion can be caused by a blocked drain or drain screen inspect and clean the drain and drain screen before each use Never operate the steamer without the screen in place At the back of the cooking compartment the drain is covered by a movable drain screen Refer to Figure 3 8 The screen prevents large food particles from entering and blocking the drain line Any blockage of the drain line or screen can reduce drainage from the cooking compartment resulting in reduced cooking performance equipment damage and a hazard to the operator A blocked or slow drain may cause e Hot water to collect in the compartment and spill out when the compartment door opens e Pressure fluctuations in the compartment resulting in steam leaks around the door gasket or compartment implosion e Reduced convection in the compartment reducing cooking performance Before every steaming operation inspect the cooking compartment and remove any food scraps or debris from the racks walls and floor of the compartment Pay particular attention to the drain and drain screen 1 DO NOT USE the steamer if water stands in the drain opening Refer to Chapter 4 drain cleaning instructions immediately 2 Remove any food or debris that is blocking the drain or screen 3 Be sure the screen covers the drain The screen prevents large pieces
126. elay 120V 03525 Socket Relay 105785 Relay 24V Coil DPDT 105044 Clip Wire Relay 105788 Switch Air Prover 20528 Transformer 24 Volt 106125 Screw Slotted Torx 10 32 x 1 75 106123 Screw Slotted Torx 10 32 x 1 2 105693 Spark Ignition Control Module 20304 Ground Lug 02600 Bushing Insulator Heyco 20302 Terminal End Section Marathon 20301 Terminal Section Marathon 101334 Screw Slotted Pan Head 10 32 x 1 2 23114 Washer Internal Tooth 10 32 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 Page 168 SteamCraft 10 Service Manual Chapter 7 Figure 7 9A Steam Generator Assembly Model 24 CEA 10 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 169 Figure 7 9A Steam Generator Assembly Model 24 CEA 10 104195 Generator Assembly Weldment 19170 Screw 1 4 20 x 625 Hex Head S S 23105 Washer Lock S S 1 4 23116 Washer Flat 1 4 I D x 5 8 O D S S 14618 Nut Hex 1 4 20 S S 104192 Insulation Generator 104386 Gasket Drying Element 07128 Gasket 104614 Cover Plate 101655 Washer Flat 10 S S 23113 Washer Lock Split Ring Cad Plated 10 14659 Nut Hex 10 24 S S 104306 Element Immersion 300W 208V 1043061 Element Immersion 300W 240V 1043062 Element Immersion 300W 480V 1043063 Element Immersion 300W 380V 1043064 Element Immersion 300W 415V 104223 Nut Hex Elastic Loc
127. elays R1 and R2 energized the closed contactors R1 and R2 also activate the second stage of the gas valve increasing gas flow to the burners e With one compartment set for steaming the gas valve primary stage supplies gas for a combustion rate of 70 000 to 75 000 BTU hr e With both compartments set for steaming the gas valve secondary stage increases gas flow for a total combustion rate of 125 000 BTU hr When the upper timer reaches zero the condenser and steam valves dose stopping steam flow through the upper cooking compartment Relay R1 is de energized closing the secondary stage of the gas valve The steam generator continues its steaming cycle at a lower combustion rate D When the ON OFF switch is set to OFF the water fill and steaming cycles stop The blowdown cycle starts as explained on page 81 Figure 5 9 Partial Schematic Combustion Components 24 CGA 10 Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 5 Page 79 Gas Burner Ignition and Combustion Functions Model 24 CGA 10 Gas fired SteamCraft 10 s have a blower powered two stage combustion system with an intermittent pilot igniter coupled to an automatic gas valve and control module This system initiates and controls gas flow ignition and combustion The burners heat the water in the steam generator through the heat exchanger The blower forces the combustion gasses up the heat exchanger tub
128. electronic burner ignition systems which automatically light the burners sense and monitor the flame provide safety shutoff and control gas flow This combines precise burner ignition and control with safety interlock and shutdown features The ignition module is a Honeywell intermittent pilot module No S8600M The Valve is a White Rodgers 36E96 Series The Honeywell manual covering the S8600M Ignition Module is duplicated in this chapter starting on page 200 The White Rodgers manual covering the 36E96 Series Gas Valve is duplicated Starting on page 210 Printed 3 93 200 SteamCraft 10 Service Manual Chapter 8 Models 24 CGA 10 and 24 CEA 10 INTERMITTENT PILOT MODULE S8600M APPLICATION These ignition modules provide ignition sequence flame monitoring and safety shutoff for intermittent pilot central furnaces and heating appliances S8600 and S8660 models provide up to 1 0 A pilot and 1 0 A main valve current rating Minimum ambient temperature Rating is 40 F 40 C Maximum ambient rating is 175 F 79 C for S8600 S8660 and for S8610 S8670 used with 1 0 A or less main valve Maximum ambient rating for S8610 S8670 used with 1 0 to 2 0 A main valve is 165 F 74 C See Table 1 fora summary of other differences between models TABLE 1 INTERMITTENT PILOT IGNITION MODULES PREPURGE TIMING 100 PERCENT SHUTOFF Yes at 90 sec max S8600M Combination Natural or None alf established flame i
129. els 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 5 Page 71 CHAPTER 5 COMPONENT AND CIRCUIT FUNCTIONS INTRODUCTION Models Covered In This Chapter Figures And Illustrations SteamCraft 10 Variations This chapter is exclusively for Cleveland Range authorized service representatives These representatives should be experienced in the service repair and maintenance of food service equipment in general and with Cleveland Range equipment specifically The service representative must thoroughly understand Chapters 1 through 4 of this manual before applying any of the information or instructions in this chapter This chapter contains e A descriptive theory of operation e An Overview of SteamCraft 10 electrical circuits e A functional description of major components Service technicians unfamiliar with SteamCraft 10 operating functions should study this section in conjunction with Chapter 3 Service technicians already familiar with the SteamCraft 10 may use this section to refresh their knowledge of the component functions or proceed directly to the component testing in Chapter 6 This chapter covers SteamCraft 10 models with atmospheric steam generators e Model 24 CGA 10 Gas fired atmospheric steam generator e Model 24 CEA 10 Electric atmospheric steam generator Most illustrations in this chapter are on the same page or near the text in which they are first referenced However the Electrical Schematics and Wiri
130. emove the left side access panel by removing the three mounting screws Save the screws e Verify that the automatic gas valve wiring connections are clean and tight e Verify that the manual ON OFF valve of the automatic gas valve is in the ON position Figure 2 15 3 If the main gas valve is too far from the unit for one man to both bleed the line and operate the valve arrange for an assistant to operate the valve 4 Use the union fitting located just ahead of the gas valve as the bleed point This will minimize the amount of air remaining between the bleed point and the automatic gas valve after bleeding the line If it is not possible or convenient to use this union fitting select another fitting close to the SteamCraft 10 automatic gas valve To minimize the amount of air Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 31 remaining between the bleed point and the automatic gas valve select a fitting as close as possible to the valve If the drip leg is close enough to the Steam Craft 10 it may be used as an alternate bleed point 5 Loosen the fitting enough to allow gas to escape Open the main gas valve and bleed the trapped air out of the gas supply line Retighten the fitting 6 Test the pipe joint for leaks with soap and water solution e Paint pipe joint with rich soap and water solution e Bubbles indicate a gas leak e Tighten joints to stop gas leak 7 Install the left
131. en with a SteamerGard system installed the owner user should follow toe guidance of the Warranty Protection Table Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Table of Contents Chapter Page CHAPTER 1 PRODUCT IDENTIFICATION MODEL NUMBER SERIAL NUMBER PRODUCT INFORMATION PLATE E sch sch ch CHAPTER 2 INSTALLATION INSTRUCTIONS 7 INTRODUCTION 7 INSTALLATION POLICIES 7 INSTALLATION OVERVIEW 8 PREPARATION FOR INSTALLATION 10 Protecting The SteamCraft 10 10 Electric Power Requirements 10 Gas Supply Requirements 10 Exhaust Hood Requirements All Models 10 Water Quality Requirements 11 Softened Treated or Filtered Water 16 Water Supply System 16 Selecting The Operating Location 17 INSTALLATION INSTRUCTIONS 18 Unpacking amp Inspection 18 Shipping Damage Instructions 19 Position amp Level The SteamCraft 10 19 Adjustable Leveling Legs 19 Positioning amp Leveling 19 Install Slide Racks 20 Install amp Connect The Free Air Vented Drain Lines 20 Exhaust Hood Ventilation All Models 22 Install Electric Power Lines 22 Connect Electrical Line 23 Install Water Supply Lines 24 Connect Water Supply Lines 26 General Connection Requirements 26 Untreated Water Connection Without SteamGard 27 Treated Water Connection With SteamGard 27 Testing Water Supply Lines 27 Install amp Connect Gas Supply Lines 27 Leak Testing Gas Supply Lines 28 Pressure Testing The Gas Supply Lines 29 Bleed Air From The Gas Supply
132. ent test CT 11 IT 3 5 Does steam enter the cooking compartment after the burners have been on for a few minutes YES NO NOTE The normally closed compartment steam valve opens when the TIMED MANUAL switch is set to MANUAL This valve allows steam to enter the cooking compartment After the steam generator has begun steaming a steady flow of steam constantly fills the cooking compartment Failure of either the compartment steam valve or the steam relief valve can prevent proper steam flow into the cooking compartment 1 Check for blockage in the plumbing between the cooking compartment and the steam generator 2 If not already done in test 11 3 4 check the steam relief valve according to component test CT 11 3 Check the compartment steam valve according to component test CT 12 Repeat all of the Phase 3 tests through IT 3 5 for the lower compartment 1 Set the upper compartment TIMED MANUAL switch to the TIMED position 2 Cool the water in the steam generator to preheat temperature by running a partial blowdown cycle a Set the ON OFF switch to the OFF position for one minute This will drain about a half of the hot water from the steam generator b Set the ON OFF switch back to the ON position This will replace the drained hot water with cool water 3 Perform Phase 3 testing using the lower compartment control panel Phase 3 testing is complete Proceed to Phase 4 testing Printed 3 93 Cleveland Range Inc Model
133. equipment damage property Manual Valve Knob damage and or personal injury System Wiring This control is not intended for use in locations Pressure Regulator Adjustment where it may come in direct contact with water Suitable protection must be provided to shield the control from exposure to water dripping spraying rain etc Led WHITE RODGERS DIVISION A EMERSON ELECTRIC CO Printed in U S A PART No 37 5143A Sanson 9797 REAVIS ROAD 9204 ST LOUIS MISSOURI 63123 e Cleveland Range Inc Printed 3 93 Models24 CGA 10 and 24 CEA 10 SPECIFICATIONS Type of Gas Suitable for use with all gases Pressure Regulator Settings Nat Gas Low Setting 1 0 to 5 0 Factory Set High Setting 3 0 to 5 0 L P Gas Low Setting 3 0 to 12 0 Factory Set High Setting 9 0 to 12 0 Pressure Rating 14 W C 1 2 PSI max Ambient Temperature O F to 175 F INSTALLATION T WARNING NEVER USE FLAME OR ANY KIND OF SPARKS TO CHECK FOR GAS LEAKS COULD CAUSE FIRE AND OR EXPLOSION Bens All piping must comply with local codes ordinances and or national fuel gas codes MAIN PIPING CONNECTIONS Ay WARNING Failure to aim off electric or main gas supply to heating system could cause personal Injury and or property damage by shock gas suffocation fire and or explosion 1 Turn off electrical power to the system at the fuse box or circuit breaker Also turn off the main gas s
134. er The following circuit operations occur 1 Model 24 CEA 10 only The transformer and high voltage circuits on the line side of the heater contactor remain energized The red indicator light on the ON OFF switch turns OFF The condenser solenoid deenergizes closing the condenser valve The drain solenoid deenergizes opening the drain valve nA A WY N The 3 minute timer circuit is energized and the timer starts to count down While the timer counts down the rinse cycle occurs This cycle is the same for both gas fired 24 CGA 10 and electric heater 24 CEA 10 models In the electric models both the upper and lower generator float sets are rinsed a The fill solenoid is energized opening the fill valve This injects a high velocity water stream from the valve into the drain valve causing rapid draining of the steam generator Rapid draining causes turbulence Figure 5 14 Water Flow Comparison Printed 3 93 Cleveland Range Inc in the generator to mix and remove bottom sediments with the drain water b The rinse solenoid is energized opening the rinse valve The rinse valve injects water into the top of the float cylinder Rinse flow through the cylinder flushes sediment that collects during operation c After the 3 minute timer counts down to zero the timer opens the circuit to the fill and rinse solenoids closing these valves The drain valve remains open to drain any residual water from the system
135. er Control Panel Sheet 4 of 4 Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 7 CHAPTER 2 INSTALLATION INSTRUCTIONS This manual and several components are packaged inside the Steam Craft 10 shipping carton Only enough of the carton should be opened to remove this manual Do not remove the Steam Craft 10 from the carton until just before installation If the shipping carton has already been removed and discarded protect the Steam Craft 10 from dirt and damage during storage site preparation and installation as described in Protecting The Steam Craft 10 page 10 WARNING DEATH INJURY AND EQUIPMENT DAMAGE could result from improper installation of the SteamCraft 10 or from installation of a unit dam aged during shipment or storage Either of these conditions could also void the equipment warranty DO NOT INSTALL a SteamCraft 10 suspected of damage Install the SteamCraft 10 according to the policies and procedures outlined in this manual INTRODUCTION This chapter is a guide for installation of the SteamCraft 10 model numbers 24 CGA 10 24 CGP 10 24 CEA 10 and 24 CEP 10 This guide is for use by qualified professionals and does not include all procedures and precautions in the common domain of licensed plumbers pipe fitters and electricians or experienced food service equipment installers This guide must be used in conjunction with professional experience and a thorough
136. er Element Resistance Measurements Cleveland Range Inc SteamCraft 10 Service Manual Chapter 6 Page 95 If an electronic key pad timer or mechanical dial timer fails the Steam Craft 10 can usually be operated in MANUAL mode TIMED MANUAL switch set to MANUAL This allows continued operation while waiting for a replacement timer The 3 minute timer all units and the 3 second timer mechanical timer only operate identically except for the time delay When 115 120 VAC is applied across terminals 2 3 INPUT the timer circuits provide 115 120 VAC across terminals 1 3 LOAD When the time elapses 3 minutes or 3 seconds the timer sets the LOAD terminals to 0 VAC A timer contains electronic components which work like a relay and contact Refer to Figure 6 2 When the switch closes the timing circuit shown as a relay and contact energizes The timing circuit closes its contact 10 energize the solenoid or buzzer When the delay time of the timer elapses 3 minutes or 3 seconds the timing circuit opens the contact and the solenoid de energizes A load must be connected to the LOAD terminals of the timer during testing Use a spare solenoid or buzzer as the test load Without a load connected to the LOAD terminals the voltage across the LOAD terminals will remain 115 120 VAC when the timer energizes and will remain at 115 120 VAC indefinitely Because the LOAD terminals remain energized only for a short time connect the voltmeter
137. er and or installer This section illustrates plumbing layouts recommended by Cleveland Range When installing water supply lines observe the following instructions 1 The Steam Craft 10 has two 3 8 inch IPS fittings for connecting the steam generator and condenser blowdown water supply lines These fittings are detailed as C and B in Figure 2 2 2 Always connect a cold water supply to both water supply lines DO NOT USE HOT WATER The steamer will not function properly or within design safety limits if hot or warm water is supplied to either the condenser connection or the steam generator fill connection 3 Do not connect the SteamCraft 10 to a softened or treated water supply which adds chlorine or chloride salts to the water Refer to Softened Treated or Filtered Water on page 16 for details 4 Supply water must have a minimum dynamic pressure of 35 psi 2 4 kg cm and a maximum static pressure of 60 psi 4 1 kg cm Water pressure greater than 60 psi will cause damage TO the solenoid valves Local water pressure can be 100 psi or more If possible check supply pressure at non peak demand time A local water company can assist in this check If static pressure exceeds 60 psi a pressure regulator must be installed in the supply lines For best results set the regulator for 50 psi dynamic pressure Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 25 5 Refer to the recommended plumb
138. er connections See page 24 Pans too close to the bottom of cabinet Put pans in racks near top of cabinet Steam generator scale buildup Compartment overloaded with too much food Voltage too low for unit Suggested cooking times are usually listed for cooking at sea level Juices and or food leaking from pans Descale steam generator with USDA approved descaler Put less food into pan Use fewer pans See note 4 Extend cooking times for altitudes above 2500 feet Put a solid pan under perforated pans to catch drippings or put less food in pan Printed 3 93 Page 70 Chapter 4 SteamCraft 10 Service Manual Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 TROUBLESHOOTING NOTES 1 If problem is inside the steamer call an authorized service representative Cleveland Range Inc will not pay for warranty repairs by unauthorized repair centers 2 Proper installation of the Steam Craft 10 is the responsibility of the owner or installer Refer to Cleveland Range Inc warranty on the inside front cover 3 Repairs to external plumbing should be done by a Licensed Plumber 4 Repairs to external wiring should be done by a Licensed Electrician For more information on products and services contact your nearest Author ized Service Representative Call factory for a preventative maintenance program descaling kits descaling information and water treatment systems USA 800 782 0040 Canada 416 663 7770 Mod
139. erating steam The ignition system will either light the pilot and burners or fail 1 If not already done during prior installation and testing Page 32 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 a Pressure test the gas supply lines as described in Pressure Testing Gas Supply Lines b Bleed trapped air from the gas supply lines as described in Bleed Air From The Gas Supply Lines above c Check that the manual ON OFF valve of the automatic gas control valve is in the ON position d Turn the main manual gas shut off valve to the ON position 2 Turn ON the electrical power to the SteamCraft 10 at the main disconnect switch NOTE When initial power is supplied to the SteamCraft 10 with the ON OFF switch in the OFF position a 3 minute blowdown cycle starts This blowdown cycle stops when the ON OFF switch is changed to the ON position 3 For Atmospheric Models Only 24 CGA 10 and 24 CEA 10 Turn ON the electrical power to the SteamCraft 10 at the control panel ON OFF switch a Water begins filling the steam generator The preheating circuits are energized but the burners do not light until water reaches the safety level sensor b After 5 to 7 minutes water reaches the safety level sensor and the burners light with a distinctive sound e If the burners light within 7 minutes of turning the unit ON the igniter controls are functioning End this test procedure here e If th
140. es which run through the entire height of the steam generator The control module regulates igniter and gas valve operation A During preheat and steaming cycles the combustion system is energized through combined action of the Lower Float Switch L W C O and various other components The normally open lower float switch closes only when generator water level covers the heat exchanger tubes e During Preheat The L W C O Switch energizes the combustion system components through the normally closed Preheat Switch Figure 5 3 This switch opens and closes to control the preheating as described on page 74 e During Steaming The L W C O Switch energizes the combustion system components through the normally open R1 and or R2 relay contactors These contactors remain closed as long as their respective compartment control panels are set for steaming Operation of these relays is described on page 77 B Refer to Figure 5 10 When the combustion circuits are energized the ignition and combustion sequence starts 1 The energized relay R3 closes its R3 contactors starting the combus tion fan motor 2 When the combustion fan reaches operating speed the air prover switch senses air flow and closes energizing the control module 3 The energized control module counts down a 45 second delay and starts burner ignition The module simultaneously sparks the pilot igniter and sends gas to the pilot 4 When the igniter sensor detects pilot ign
141. few component and functional differences between units with the Key Pad and Dial Time Control Panels e Units with Key Pad Control Panels have electronic timers with digital displays The electronic timers are powered by a 24 VAC transformer These units also have a compartment thermostat which effects the electronic timer countdown e Units with Dial Timer Control Panels have mechanical timers and do not require a separate power supply A separate buzzer and three second timer are connected to the mechanical timer These units do not have a compartment thermostat THEORY OF OPERATION When troubleshooting and testing SteamCraft 10 components an understanding of overall SteamCraft 10 operation is helpful This section describes equipment and component functions that occur during SteamCraft 10 operation Steam Generator Water Filling Cycle Refer to Figures 5 1 and 5 2 The water filling cycle keeps the steam generator filled with water and protects the water heating components electric heating elements or gas fired heat exchanger The water level in the float cylinder TO FILL SOLENOID simulates the water level in the steam generator A Figure 5 2 When the ON OFF switch is first set to the ON position the water TO HEATER fill valve opens the drain valve closes and water begins to fill the steam HIGH LEVEL SWITCH CONTACTOR generator After a few minutes water appears in the bottom of the float cylinder As the water level rises in t
142. fore unpacking the shipping carton visually inspect it for damage e If the shipping carton appears damaged do not open the carton Refer to the Shipping Damage Instructions on page 19 e If the shipping carton is undamaged proceed with step 2 2 Slit the four corners of the carton and peel carton sides away from the SteamCraft 10 The slide racks are shipped in separate packing inside the cooking compartment Be careful not to damage or throw these racks away 3 Remove the slide rack carton from the cooking compartment The package contains four slide racks two for each cooking compartment as illustrated in Figure 2 3 4 Open both cooking compartment doors Several pre assembled parts can be seen inside each cooking compartment Refer to Figure 2 4 and verify that the Drain Screen Steam Nozzles and Slide Rack Mounting Pins are installed 5 Inspect the SteamCraft 10 and parts for damage or loss e If you discover or suspect shipping damage or loss refer to the Shipping Damage Instructions e If all items are accounted for and undamaged place the packaged slide racks inside the cooking compartments and proceed to Position and Level the SteamCraft 10 A AI E Figure 2 3 Slide Racks Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 19 Position and Level The SteamCraft 10 Shipping Damage Instructions If shipping damage to the SteamCraft 10 is disc
143. ft to maintain warranty coverage 1 Refer to Power OFF Automatic Blowdown and turn off the SteamCraft 10 Allow 3 minutes for complete blowdown cycle 2 Open the steamer door and allow steamer to cool WARNING Inside of steamer stays hot for a long time Be careful when cleaning inside steamer compartment 3 Remove the slide racks Wash and rinse racks separately or clean them in a dishwasher according to health requirements Do not remove the drain screen 4 Remove any spilled food from inside compartment and clear any residue from the drain screen Clean the interior of the compartment thoroughly Use a soft bristle brush to remove stubborn food particles Do not use Page 54 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 abrasive cleaning compounds or steel wool Rinse inside of steamer compartment with clean water WARNING Let rinse water drain through compartment drain opening If water does not drain freely drain lines must be cleaned before cooking again Clogged or slow drains are dangerous because hot water can collect in compartment and spill out when opening compartment door 5 Clean the door assembly e Remove the door gasket assembly see Figure 3 5 e Note the keyhole slots on the door and the retaining pins on the gasket assembly Grasp the gasket assembly at the sides and lift up and towards you to remove the assembly e Clean all surfaces of the gasket asse
144. g down when set Operating details and cooking procedures differ between units with standard and optional panels For clarity two sets of operating instructions are provided The standard key pad control instructions start on page 45 Instructions for the optional dial timer control panel start on page 55 Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 45 KEY PAD CONTROL PANEL SUMMARY d ZEB WE BOE Figure 3 2 Key Pad Control Panel Figure 3 3 Steam Generator Controls Pressure Units Only On atmospheric units the ON OFF switch both energizes the unit controls and starts the water fill and steam generator preheating cycle On pressurized units the ON OFF switch energizes the unit controls and starts the water fill cycle The Steam switch starts the preheat and steam cycles CAUTION Press switches with fingertips only Do not use kitchen utensils or anything sharp to operate the switches 1 TIMER Display This four digit display indicates the minutes and seconds remaining in the count down The display reads from zero 00 00 to 99 minutes and 99 seconds 99 99 It reads pause PAUS when the count down is halted either by the START STOP key or by the temperature compensating circuit 2 Number Pad Keys These keys set the number of minutes and seconds in the timer count down Pressing the number keys 23 4in this sequence sets the timer for 12 minutes and 34 seconds
145. h Water supply to steamer shut off Water line strainer is clogged Water supply to steamer shut off Water line strainer is clogged Gas models only gas supply valve closed Electric models only heating elements covered with scale Electric models only heating elements damaged Inoperative controls or solenoid Hot water instead of cold water connected to condenser fitting Water supply to condenser turned off Condenser water line strainer is clogged Water supply line to the condenser blocked broken or leaking Inoperative condenser solenoid Inoperative controls and easiest to repair listed first The third column also refers to notes that are grouped at the end of the troubleshooting guide Refer to these notes when instructed to do so Do not try to correct a problem that requires an authorized service representative as this may adversely affect warranty coverage REMEDY REFERENCE Turn on power at main disconnect switch Open water supply valves Clean water supply strainer Open water supply valves Clean water supply strainer Turn OFF unit and open gas supply valve Descale steam generator with USDA approved descaler See note 1 See note 1 Make proper connections See page 24 Open water supply valve Clean out condenser water supply strainer Repair or replace water supply line See note 1 Replace solenoid See note 1 Turn off electricity
146. he atmosphere Generating steam causes pressure to increase in the unit cold water flow into the condenser creates a vacuum low pressure in the condenser Without a free air vent either high or low pressure in the compartment will cause malfunction or damage e Pressure build up in the steamer will cause steam and hot water leakage around the door e A vacuum will implode the steamer and cause permanent physical damage Refer to Figure 2 6 and the dimension drawings Figure 2 2 The drain outlet D discharges exhaust steam and hot condensate from the steamer The drain exhaust vent and a inch minimum clearance between the drain opening and floor drain provide the SteamCraft 10 Steamer with free air venting Furnishing and installing the drain lines and fittings is the responsibility of the owner and or installer Figure 2 6 illustrates a drain layout recommended by Cleveland Range Observe the following instructions to determine the pipe size the number of fittings required and the layout of the drain line Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Page 21 SteamCraft 10 Service Manual Chapter 2 Figure 2 6 Drain Layout and Connections ANN Figure 2 7 Access Panel Removal WARNING DEATH INJURY AND EQUIPMENT DAMAGE could result from improper installation of the drain outlet lines Improper installation of these lines could void the SteamCraft 10 Steamer warranty The following restrictions are c
147. he off position The blow down cycle starts While the blow down cycle is operating check the following e If both upper and lower fill solenoids energize relay R1 is good End this procedure here e If either or both fill solenoids do not energize proceed to step 3 3 Refer to Figure 6 45 and check for continuity across relay R1 contacts going to the faulty fill valve e If the meter indicates discontinuity replace relay Pee eee Rey RI e If the meter indicates continuity the fault is not in relay R1 Burner Ignition and Control System Components Model 24 CGA 10 This system includes the following components e Combustion Blower Fan e Air Prover Pressure Switch e Automatic Gas Valve e Combustion Control Module e Pilot Spark Igniter The SteamCraft 10 s Intermittent Pilot IP Burner Ignition and Control System is designed by White Rodgers and Honeywell and is comprised of all White Rodgers and Honeywell components Refer to Chapter 8 for the White Rodgers and Honeywell manuals All troubleshooting maintenance and repair of the IP Burner Control System should be done according to the manuals duplicated in Chapter 8 Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 149 CHAPTER 7 ILLUSTRATED PARTS LISTS INTRODUCTION This chapter illustrates replacement parts for the Cleveland Range Steam Craft 10 models 24 CEA 10 and Model 24 CGA 10 Each figure
148. he relay R1 according to CT 25 5 Disable the 3 minute timer by removing the gray wire from the 3 minute timer terminal 2 Set the ON OFF switch to the OFF position e If overfilling continues the fill valve has failed or is stuck open Reconnect the gray wire to the 3 minute timer terminal 2 Replace the fill solenoid valve End this procedure here Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 BLUE Figure 6 12 Water Fill Solenoid Valve 24 CGA 10 CT 5 ON OFF Switch Figure 6 14 ON OFF Switch 24 CGA 10 Electronic Cleveland Range Inc SteamCraft 10 Service Manual Chapter 6 Page 127 If the valve fills the generator to the high level and stops the valve is operating properly a Reconnect the gray wire to the 3 minute timer terminal 2 b Set the ON OFF switch to the ON position c Test the float high level switch In the following procedure replace the notation 115 120 VAC with the correct operating voltage for the SteamCraft 10 model being serviced e The correct operating voltage for 24 CEA 10 models is 120 VAC e The correct operating voltage for 24 CGA 10 models is 115 VAC 1 2 Set the voltmeter to the 250 VAC scale Set the ON OFF switch to the ON position e If the red indicator lights proceed to step 3 e If the red indicator does not light proceed to step 4 Set the ON OFF switch to the OFF position Refer to Figures 6 13 and 6 14 and check for 115 120 VAC
149. he steam generator so does the water level in the float cylinder B When the water level is approximately one inch above the bottom of the float cylinder the water level in the steam generator has reached a safe operating level covering the water heating components The preheat cycle starts and water continues to fill the generator The water level in the float continues to rise C After a few minutes the water in the float cylinder reaches the upper limit approximately one inch below the top of the cylinder The fill valve closes and water stops filling the generator Preheating continues D As the hot water evaporates from the generator during preheating or steaming the water level drops When it drops below the upper level enough to close the upper float switch the fill valve opens and refills the generator This fill cycle repeats continuously during the steaming and preheat cycles until the ON OFF switch is set to the OFF position e The gas fired Model 24 CGA 10 has one steam generator component group The steam generator supplies steam to either or both of the cooking compartments Refer to Figure 5 6 e The electric heater Model 24 CEA 10 has a steam generator component group for each cooking compartment Although each steam generator group operates independently both upper and lower water fill cycles start simultaneously when the ON OFF switch is first set to the ON position Figure 5 1 Float Assembly Printed 3 93 Cle
150. heater and dryer leads from element terminals of contactor c Set both the ON OFF switch and the main power switch to the ON position Allow water to fill the float cylinder to operating level d Zero adjust the ohmmeter at the lowest scale Continue this procedure with step 6 Cleveland Range Inc Printed 3 93 Page 146 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 6 Refer to Figure 6 44 and check the resistance of each heater and dryer element Compare the meter readings with the values listed in Tables 6 1 and 6 2 e If any of the heater coils do not have the resistance specified in Table 6 1 replace the element e If the dryer element does not have the resistance specified in Table 6 2 replace the element e If all three heater coils have the resistance specified in Table 6 1 continue this procedure with step 7 If the dryer element has the resistance specified in Table 6 2 continue this procedure with step 7 Table 6 1 Steam Generator Heater Elements PART NO WATTS VOLTS OHMS COIL 5 103881 8000 208 16 1038811 8000 240 22 Figure 6 43 Ohmmeter Connections for 1038815 8000 380 54 Heater Coil Resistance 1038812 8000 415 65 1038814 8000 480 86 Table 6 2 Steam Generator Dryer Elements PARTNO WATTS VOLTS OHMS 5 104306 300 208 144 1043061 300 240 192 1043062 300 480 768 1043063 300 380 481 1043064 300 415 570 7 Prepare the SteamCraft 10 components for testing the heate
151. here chemicals are likely to be suspended in air as in some industrial and agricultural applications protect the ignition module from exposure with a NEMA 4 enclosure see the Electronic Ignition Service Manual form 70 6604 DUST OR GREASE ACCUMULATION Heavy accumulation of dust or grease may cause the controls to malfunction Where dust or grease may be a problem provide covers for the module and the gas control INSTALLATION WHEN INSTALLING THIS IGNITION SYSTEM 1 Read these instructions carefully Failure to follow them could damage the components or cause a hazardous condition 2 Check the ratings given in the instructions and on the components to make sure they are suitable for your application 3 Installer must be a trained experienced service technician 4 After installation is complete check out component operation as provided in these instructions WARNING FIRE OR EXPLOSION HAZARD CAN CAUSE SERIOUS INJURY OR DEATH 1 The ignition module can malfunction if it gets wet leading to accumulation of explosive gas e Never install where water can flood drip or condense on module e Never try to use a module that has been wet replace it 2 Liquefied petroleum LP gas is heavier than air and will not vent upward naturally e Do not light pilot or operate electric switches lights or appliances until you are sure the appliance area is free of gas CAUTION Disconnect power supply befor
152. id the fault is not in the solenoid valve a Check the rinse solenoid circuit wiring for continuity and secure connections Replace or repair faulty wiring and connections Figure 6 10 Float Rinse Solenoid Valve b Refer to Test CT 2 and test the 3 minute timer 24 CGA 10 CT 4 Water Fill Solenoid Valves 1 Set the voltmeter to the 250 VAC scale 2 Set the ON OFF switch to the ON position and observe the red indicator light e Ifthe indicator does not light test the ON OFF switch according to CT 5 before doing this procedure e Ifthe indicator lights continue this test with step 3 3 Watch the water level in the float assembly The water level in the float assembly corresponds to the water level in the generator If valve opens fills the generator to the high level and stops the valve is operating properly End this procedure here If valve does not open to let water flow into the generator continue this procedure with step 4 If valve fills the generator but does not stop at the high level switch continue this procedure with step 5 4 Check for 115 120 VAC across the solenoid terminals If the meter reads 115 120 VAC replace the fill solenoid valve e If the meter does not read 115 120 VAC the fault is not in the fill solenoid valve a Check the wiring to the fill solenoid Fi 6 11 Water Fill Solenoid Val ped Spg i Soe E b Test the float high level switch On model 24 CEA 10 c Test t
153. ignition is satisfactory by irterrupting and re establishing the electrical supply to the appliance in any convenient manner b Determine manifold pressure in order to match input after the new control is installed a Visually determine that main burner gas is burning properly i e no floating lifting or flashback Adjust the primary air shutter s as required If appliance is equipped with high and low flame control or flame modulation check for proper main burner operation at low flame Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use a draft gauge the flame of a match or candle or smoke from a cigarette cigar or pipe 12 Return doors windows exhaust fans fireplace dampers and all other fuel burning appliances to their previous conditions of use 13 Applicable only to warm air heating appliances Check both limit controller and fan controller for proper operation Limit controller operation can be checked by temporarily disconnecting the electrical supply to the blower motor and determining that the limit control acts to shut off the main burner gas 14 Applicable only to boilers Determine that the circulating water pumps are in operating condition a Test low water cutoffs automatic feed controls pressure and temperature limit controls and relief valves in accordance with the manufacturer s rec ommendations and instructions to determine they are in operating
154. in outlet to the floor drain Do not install a trap in the drain line 5 Free air venting requires a minimum of one inch clearance between the end of the drain line and the top of the floor drain 6 Do not connect the steamer drain to drains or plumbing of any other equipment If drains of two or more units are connected together e Low pressure can develop causing an implosion and physical collapse of the steamer e Drainage from another unit can flow back into a cooking compartment of the steamer Page 22 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Exhaust Hood Ventilation All Models Install Electric Power Lines 7 Refer to Figure 2 7 Remove the right side access panel and connect the drain line to the 1 5 inch drain pipe connection D inside the Steam Craft 10 8 When assembling the drain pipes and fittings apply a hardening type pipe sealant to the threads and thread them together FINGER TIGHT ONLY DO NOT USE A WRENCH SteamCraft 10 s with gas fired steam generators have an exhaust hood H Figure 2 2 which covers the Gas Flue port G on top of the unit In addition to the required venting of gas fired equipment some state and local codes require the venting of steam generating equipment 1 The SteamCraft 10 gas flue G must be vented in compliance with all local state and national codes for venting gas fired appliances Steam venting must comply with the state and
155. ing conditions are set to start Phase 4 testing e The right side and front access panels are removed and the float assemblies relays and contactors are clearly visible e The Main Disconnect Switch is in the ON position and the 3 minute blowdown cycle has stopped The ON OFF power switch is in the ON position e Both upper and lower compartment TIMED MANUAL switches are in the TIMED position e Both upper and lower compartment timers arc set for zero minutes e The water in the steam generator is at pre heat temperature To quickly lower the generator water temperature run a partial blowdown cycle as described at the end of Phase 3 Sequential Testing Examine the components of the upper compartment and steam generator group first Then repeat Phase 4 testing for the lower compartment and steam generator group For units with Mechanical Dial Timers start this procedure with IT 4 1 For units with Electronic Key Pad Timers start this procedure with IT 4 6 MECHANICAL DIAL TIMER TEST SEQUENCE IT 4 1 Simultaneously start a stopwatch and turn the timer dial of the upper control panel to the 5 minute setting NOTE In TIMED mode setting a cooking time for either compartment activates the steam valve the condenser valve and the heater contactor for that compartment IT 4 3 Do the heater contactors and heaters turn on as the dial is set to 5 minutes YES NO The heater and control components have already been teste
156. ing layouts in Figures 2 10 and 2 11 and install the water supply lines and fittings in accordance with all local and national codes Pay particular attention to the following requirements and recommendations a When installing a water supply system without a SteamerGard Cleveland Range recommends the plumbing layout illustrated in Figure 2 10 This is a single water line from the main cold water supply to the tee just outside the SteamCraft 10 The two separate lines from the tee to the steam generator and condenser blowdown connections are comparatively short b When installing a water supply system with a SteamerGard Cleveland Range recommends the plumbing layout illustrated in Figure 2 11 Note the following details e This is a single water line from the main cold water supply to the tee just before the SteamerGard The two separate and comparatively short lines run from the tee to the SteamerGard intake connection and from the tee to the SteamCraft 10 condenser blowdown connec tion e The water supply to the condenser connection can be untreated e The treated water supply connects to the steam generator fill connec tion SteamCraft 10 Main Coid Water Suppty Water Connection W on Pressure Reducer Main Water Dimension Diagram IN required Shut Off Vaive Figure 2 10 Untreated Water Supply Arrangement Figure 2 11 Treated Water Supply Arrangement Page 26 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA
157. intained when the appliance is installed Regular preventive maintenance is important in any application but especially so in commercial cooking agricultural and industrial applications because e In many such applications particularly commercial cooking the equipment operates 100 000 200 000 cycles per year Such heavy cycling can wear out the gas control in one to two years A normal forced air furnace for which the controls were originally ex tended typically operates less than 20 000 cycles per year e Exposure to water dirt chemicals and heat can damage the module or the gas control and shut down the control system A NEMA 4 enclosure can reduce exposure to environmental contaminants See Electronic Ignition Service Manual form 70 6604 The maintenance program should include regular check out of the system as outlined under Checkout page 11 FIRE OR EXPLOSION HAZARD MAY CAUSE PROPERTY DAMAGE SEVERE INJURY OR DEATH Do not attempt to take the module apart or to clean it Improper reassembly and cleaning may cause unreliable operation Maintenance frequency must be determined individually for each application Some considerations are e Cycling frequency Appliances that may cycle more than 20 000 times annually should be checked monthly e Intermittent use Appliances that are used seasonally should be checked before shutdown and again before the next use e Consequence of unexpected shutdown Where the cost of an
158. ions Inspect the white to white connection Replace or repair faulty wiring and connections e When the wiring and connections of steps a through c are good continue this procedure with step 3 The timer may not be receiving power due to a faulty 24 VAC transformer or lack of 115 120 VAC to the transformer a Check the 24 VAC transformer according to the procedure outlined in section CT 16 If the PAUS indication does not start after pressing the START STOP key or if the indication continues longer than 5 minutes test the compartment thermal switch e Repair or replace the compartment thermal switch according to test procedure CT 18 e If the compartment thermal switch tests good replace the timer If the condenser solenoid and heater contactor do not energize check the two orange wires between the timer and the TIMED MANUAL switch for continuity and secure connections e Replace or repair faulty wiring and connections e If the wiring and connections are in good condition test the TIMED MANUAL Switch according to test procedure CT 9 e Ifthe wiring connections and TIMED MANUAL switch are all in good condition replace the timer If the TIMED MANUAL SWITCH is set to TIMED and the SteamCraft 10 continues to generate steam after Timer counts down to 00 00 replace the timer Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 CT 18 Compartment Thermostat key pad timer units only PUR BLU L
159. ircuits Cleveland Range Inc Printed 3 93 Page 140 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 2 ELECTRONIC TIMER PINK YELLOW BLACK BLACK Figure 6 36 Electronic Timer Module Lower Compartment BLUE ELLOW_ BLACK YELLOW_ BLA BLACK CH Figure 6 37 Electronic Timer Module Upper Compartment Printed 3 93 If the timer display is blank the timer is either not receiving power from the 24 VAC transformer or the timer is faulty The timer may not be receiving 24 VAC power from the transformer due to faulty wiring Refer to Figures 6 36 and 6 37 a Check the yellow to black wires between the transformer output and the timer input for continuity and secure connections Inspect the yellow to black connections Replace or repair faulty wiring and connections b For the lower compartment check the black to pink wires between the transformer input and the ON OFF switch for continuity and secure connections Inspect the black to pink connection Replace or repair faulty wiring and connections c For the upper compartment check the black to blue wires between the transformer input and the compartment thermal switch for continuity and secure connections Inspect the black to blue connection Replace or repair faulty wiring and connections d Check the white to white wires between the transformer input and the electronic timer module for continuity and secure connect
160. ircuits Verify the control voltage for the unit being tested by referring to the schematic diagram mounted on the unit or the one included in Chapter 7 COMPONENT TESTING FUNDAMENTALS Visual Check Connections and Wiring Printed 3 93 This section is not a basic training guide for equipment testing and troubleshooting It presents several fundamental testing principles that may cause troubleshooting difficulties if ignored A review of this material is advisable even for experienced service representative Keep the principles of this section in mind while testing and servicing the SteamCraft 10 and its components Before starting any detailed troubleshooting visually check the unit for obvious damage or other faults Often malfunctions can be isolated quickly by observing the condition of the equipment and inspecting for water leaks loose connections and burned or melted wiring insulation Loose connections and open or damaged wiring can cause a variety of intermittent and troublesome component malfunction These are usually the most difficult type of problem to diagnose Be sure to check for the following conditions before replacing any component Discoloration of wire insulation near connection points usually indicates loose connections Current flow through loose connections causes oxidation and increased resistance of the connection The resistance can increase to a point where the connection can no longer dissipate the heat genera
161. is an exploded view that illustrates a group of functionally related components The top level illustrations Figures 7 xx and 7 xx identify these functionally related component groups and the figure s on which they are illustrated The components on the exploded views are identified by item number Each exploded view is accompanied by a parts list The item number is listed on the corresponding parts list along with the part name part ordering number and quantity used in that component group Parts Differences Among SteamCraft 10 Steamers In the normal course of product improvement component differences de velop Usually improved components are designed to be compatible with the existing structures When this happens the improved parts are provided automatically under the old part numbers When this is not possible the parts differences are tracked and identified by steamer serial numbers These differences are noted in the illustrated parts lists Refer to Chapter 1 for an explanation of Cle veland Range serial number notation Electrical Schematics and Wiring Diagrams In addition to parts illustrations SteamCraft 10 electrical schematics and wiring diagrams are included at the end of the chapter The figure numbers are listed below for each model SteamCraft 10 Ordering Pants When ordering parts for the Steam Craft 10 include the following e Model Number From Parts List e Serial Number e Item Number e Voltage e Part Number
162. it through the timer circuit During the timer countdown the heaters turn on and remain on even when the water temperature reaches 185 F and opens the Preheat Thermostat Steam builds in the upper generator and expands into the upper cooking compartment e For Dial Timers The countdown starts as soon as the timer is set and the dial is released e For Key Pad Timers The countdown delays until the compartment reaches cooking temperature The normally open Compartment Thermostat closes and allows the timer countdown 2 When the timer reaches zero the lower steam generator returns to preheat mode The upper compartment continues its steaming cycle unaffected by the operations of the lower compartment D Each steam generator continues operating in accordance with its respective control panel settings During operation the steaming cycle of either generator can be stopped individually if e Its timer counts down to zero TIMED mode only e Its High Temperature Switch detects heating element over temperature and opens e The water level in its steam generator drops below the safety limit and the Lower Float Switch L W C O opens e Its control panel settings are changed E When the ON OFF switch is set to the OFF position both upper and lower steamer control circuits are deenergized The water fill preheat and steaming cycles stop for both steam generators The blowdown cycle starts for upper and lower steam generators simultaneou
163. ition the control module opens gas flow to the burners 5 If the pilot flame sensor does not detect pilot ignition within 90 seconds the control module stops both pilot spark and gas flow C The two stage gas valve enables operation at two different burner capacities e When both cooking compartments are steaming the burners operate at 100 capacity 125 000 BTU hr e When only one cooking compartment is Steaming the burners operate at 60 capacity 75 000 BTU hr Figure 5 10 Partial Schematic Burner Ignition 24 CGA 10 Burner Ignition and Control System The SteamCraft 10 s Intermittent Pilot IP Ignition and Control System is comprised of White Rogers and Honeywell components The associated White Rogers and Honeywell manuals are duplicated in Chapter 8 All troubleshooting maintenance and repair of the IP Burner Control System Components should be done according to these manuals Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 Page 80 SteamCraft 10 Service Manual Chapter 5 SE a Condenser and Drain Functions The SteamCraft 10 drain piping has five branches one from each steam generator one from each cooking compartment and one from the door gutter in the front panel All five branches combine at the drain fitting which exits through the bottom of the unit e The electric heater model 24 CEA 10 has two steam generators two drain lines and two drain solenoid valves upper and lower The drains
164. k 6 32 105789 Switch Thermostat 185 103881 Heater Assembly 8 kw 208V 1038811 Healer Assembly 8 kw 240V 1038812 Heater Assembly 8 kw 415V 1038814 Heater Assembly 8 kw 480V 1038815 Heater Assembly 8 kw 360V 103731 Capillary HI Limit 104383 Clamp Plastic 105848 Clamp Plastic 3 4 OD Hose 1058451900 Hose 1 2 ID x 3 4 OD x 19 Long 1058451500 Hose 1 2 ID x 3 4 OD x 15 Long 1058432200 Hose 1 4 ID x 1 2 OD x 22 00 Long 1058452400 Hose 1 2 ID x 3 4 OD x 24 Long 1058452700 Hose 1 2 ID x 3 4 OD x 27 Long 104009 Fitting Assembly Steam Supply 104082 Gasket S C Steam Injector 104232 Washer Flat S S 104081 Nut Jam 5 8 18 Brass 05236 Elbow 90 NPT Brass 1 4 104048 Filling Hose Barb 1 4H x 1 4 105957 Float Assembly 03204 Clamp Hose Worm Drive VD Ch JA Ch LN P GA HA rs Kon et re CH N FPF NNN ra WR Fe em LA ere AARAA PRR KP rar ON WN Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 170 d Mi Ux UD by Figure 7 9 B Steam Generator Assembly Model 24 CGA 10 Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 171 Figure 7 9 B Steam Generator Assembly Model 24 CGA 10 Steam Generator Assembly Weldment Burner Box Assembly Natural Gas Chamber Air Distribution Assembly Fan Centrifugal 200 CFM Orifice Blower Inlet Sea level 60 Hz Gasket Fan Moun
165. k Procedures Contain spill Cover the contaminated surface with sodium bicarbonate or a soda ash slaked lime mixture 50 50 Mix and add water if necessary to form slurry Scoop up slurry and wash residue down drain with excess water Wash site with soda ash solution Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 4 Page 65 WARNING The liquid phosphoric acid in descaling kit 104394 can be harmful it not handled properly Follow these basic safety rules for handling and using acid Wear protective clothing when mixing or applying chemical cleaners Wear rubber gloves mask and approved cup type goggles Avoid breathing fumes If liquid comes in contact with skin flush immediately with large quantities of cold water Remove contaminated clothing If chemical contacts eyes flush with cold water for a minimum of 15 minutes Get immediate medical attention If chemical is swallowed or ingested follow in structions on the chemical container Get imme diate medical attention CAUTION Do not use powdered sulphoric acid part number 101751 This material will damage the float assembly and other SteamCraft 10 components Do not scrape heating elements with a solid tool If the steamer is turned OFF energize the steamer by pressing the ON OFF switch to ON Allow time for the steam generator to fill 3 to 4 minutes SE This assures that blowdown occurs E Press the ON OFF switch to OFF
166. lace food into the cooking compartments Nn E Select the operating mode e Manual Mode For continuous steam cooking until the operator stops the steaming cycle e Timed Mode Set the Timer for continuous steam cooking until the timer counts down and stops the steaming cycle 7 Remove food from the cooking compartment s 8 Power Off Automatic Blowdown 9 At end of each day or shift shut down and clean the SteamCraft 10 Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 47 Power ON Automatic Fill When the SteamCraft 10 is turned on it automatically fills the steam generator with water Use this procedure at the beginning of a shift to prepare the steamer for operation without Starting steam generation When ready to start steam cooking begin either the Timed or Manual Operating Procedure 1 At the beginning of this procedure the ON OFF switch is in the OFF bottom position The control panel circuits are not powered and the timer display is blank 2 Press the TIMED top end of the TIMED MANUAL switch 3 Press the ON top end of the ON OFF switch to energize the SteamCraft 10 control panel The red indicator on the switch lights and water fills the steam generator START UP INSTRUCTIONS FOR GAS FIRED STEAM GENERATORS 1 Turn on the main power switch ON OFF Switch e Generator will fill with water about 5 minutes e Blower will start and pilot will attem
167. land Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page193 Figure 7 19 SteamCraft 10 Schematic Diagram Mechanical Timer 24 CGA 10 Cleveland Range Inc Printed 3 93 Page 194 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Saree STEAMCRAFT 10 GAS ELECTRONIC TIMER UPPER GONG a 3 OI VW Ri RI DSU AS RE 105785 DH 105973 Figure 7 20 SteamCraft 10 Electrical Wiring Diagram Model 24 CGA 10 Key Pad Control Panel Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 195 STEAMCRAFT 10 GAS MECHANICAL TIMER PREHEAT THERMOSTAT 105789 GAS VALVE 109782 MAT 1051821 LP TMED MAHUAL UPPER COUP omic STA 0 Denn 105965 O Mo ea Ts Ti Mar H d BEE CUSTOUER CONE CTION wt wr Do wen H Bo GC s g f l si PROT A moam RELIEF osen ar SOUHOD d 22199 xs w 00 e mn St m ne RI R 09524 RS A4 1051A5 PH 105974 Figure 7 21 SleamCraft 10 Electrical Wiring Diagram Model 24 CGA 10 Dial Timer Control Panel Cleveland Range Inc Printed 3 93 Page 196 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 STEAMCRAFT 10 ELECTRIC ELECTRONIC TIMER ay bua a COMPARTULNT THERMAL SWITCH ALTERNATE TRAHSFORMTR CONFIGURATI
168. le is removed 13 Refill the steam generator with cold water Press the TIMED MANUAL switch to the TIMED position and press the ON OFF switch to ON Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 4 YEARLY MAINTENANCE Figure 4 3 Water Strainer Assembly Cleveland Range Inc Page 67 14 Add three or four tablespoons of baking soda to the water to neutralize any remaining acid 15 Replace the cover plate or pipe plug and secure the right side access cover with the three screws or the exhaust vent with the two mounting screws 17 Set timer for 10 minutes 18 At the end of the timed cycle the buzzer sounds and the unit stops steaming 19 Blowdown the steam generator by pressing the ON OFF switch to OFF 20 After the steam generator has drained flush it once more by pressing the ON OFF switch ON waiting for the steam generator to fill about 3 4 minutes and then pressing the ON OFF switch to OFF 21 After the steam generator has drained the SteamCraft 10 is ready for operation as desired NOTE Contact service representative or manufacturer for descaling kits or for information on descaling procedures Clean Water Line Strainer NOTE If water quality does not meet the standards of Table 2 2 on page 11 and a SteamerGard has not been installed the strainer may need to be cleaned more frequently than once a year When the steamer is first installed check the straine
169. lights or system is shut down manually Likely to be cleaned with water or steam the controls and associated wiring should be covered so water or steam flow cannot reach them The controls should be high enough above the bottom of the cabinet so they will not be subject to flooding or splashing during normal cleaning procedures If necessary shield the controls to protect them from splashing water A NEMA 4 enclosure is recommended for the ignition module see the Electronic Ignition Service Manual form 70 6604 HIGH HUMIDITY OR DRIPPING WATER Over time dripping water or high ambient humidity can create unwanted electrical paths on the module circuit board causing the module to fail Never install an appliance where water can drip on the controls In addition high ambient humidity can cause the gas control to corrode and finally to fail Where the appliance may be installed in a humid atmosphere make sure air circulation around the module and gas control is adequate to prevent condensation It s also important to regularly check out the system A NEMA 4 enclosure may be needed see the electronic Ignition Service Manual form 70 6604 Form Number 69 0463 Honeywell Inc 1989 Cleveland Range Inc CORROSIVE CHEMICALS Corrosive chemicals can also attack the module and gas control and eventually cause a failure Where chemicals may be used routinely for cleaning make sure thecleaning solution cannot reach the controls W
170. lines from each generator connect to the drain fitting at the bottom of the unit e The gas fired model 24 CGA 10 has one steam generator and one drain valve There are four drain pipe branches in these units 1 The door gutter drain is a simple tube running from the gutter to the drain fitting 2 Each cooking compartment has a drain line which runs from the condenser at the back of the compartment to the drain fitting at the bottom of the unit 3 During the steaming cycle a stream of cold water sprays into the condenser of the operating compartment s This cold spray condenses the warm vapors in the drain promoting drainage of fluids condensate and vapor from the cooking compartment 4 Each steam generator drain is controlled by a drain solenoid valve When the ON OFF switch is set to the OFF position the drain valve opens as part of the rinse cycle and remains open to completely drain each steam generator The drain valve operations are explained on page 81 Condenser Operation Condenser valve operation differs slightly between the model 24 CEA 10 and model 24 CGA 10 SteamCraft 10 s The difference has no effect on cooking performance or operating efficiency When troubleshooting the drain or condenser components the differences may cause some confusion Refer to Figures 5 11 and 5 12 A In the 24 CGA 10 models the condenser solenoid valve is energized through the TIMED MANUAL switch only The condenser solenoid valve opens
171. lockage 4 If the plumbing drain lines and drain valve are not blocked refer to component test CT 10 and test the condenser solenoid valve IT 3 4 Does the Steam Relief Valve open as the unit begins to generate steam NOTE When the water in the steam generator approaches steam tempera ture the pre heat thermostat toggles at 185 to open one pole and close the other The closed pole activates relay R4 energizing the Steam Relief Valve This Valve is normally open to equalize pressure in the steam generator during the non steaming operations With this valve dosed steam is directed to the upper and lower compartment Steam Valves If the valve does not open the steam escapes to the drain manifold and floor drain Refer to the schematic diagram and note that both the R4 and R3 relay contactors must be closed for this normally open valve to close The Steam Relief Valve can close only while the Fan Motor is running YES NO Failure of any of three components can prevent the Steam Relief Valve from closing 1 Check the preheat thermostat according to component test CT 8 Continued on next page Cleveland Range Inc Printed 3 93 Page 106 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 2 Check the relay R4 according to the relay testing instructions in Component Testing Fundamentals 3 If the preheat thermostat and relay R4 are functioning property test the Steam Relief Valve according to compon
172. losed until the solenoid is energized It opens when the solenoid is energized and remains open while the solenoid remains energized It closes when the solenoid is de energized Refer to Figure 6 1 for the normal state of each valve in the SteamCraft 10 ater Pressure an ontrol Valves The SteamCraft 10 water control solenoid valves operate at a maximu m pressure of 60 psi Higher pressure causes unnecessary valve wear and requires frequent valve replacement If necessary install a pressure regulator set at 50 psi Measuring Resistance Through the Solenoid To determine if a valve solenoid is operable measure the resistance through the solenoid coil If the reading is zero the coil is shorted and the solenoid valve should be replaced Jammed or Blocked Valves If the electrical connections and solenoid actuator are good but the valve does not operate correctly the valve may be jammed in position or blocked at the inlet or outlet Printed 3 93 Page 94 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 mer vet aa a 0 mme STEAMING SLOWDOWN Drain soave Im boss Ji emm 5 Water Fill Solenoid Valve l Cycles open closed to maintain water Open3 Min level in steam generator 6 Upper Float Switch N Opens to keep steam generator water level below upper limit When this switch opens it de energizes and closes the Fill Valve item 5 7 Lower Float Switch Closes when steam generator water level is
173. low at either point If the blowdown cycle has stopped before the above test sequence is complete the cycle can be restarted by switching the ON OFF switch to the ON position and back to the OFF position Test the 3 Minute timer according to component test CT 2 Phase 1 testing is complete Proceed to Phase 2 testing Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 PHASE 2 TESTING SteamCraft 10 Service Manual Chapter 6 Page 101 This phase of testing pertains to the components associated with preheat functions After completing Phase 1 Testing verify that the following conditions are set to start Phase 2 testing The right side and front access panel are removed and the float assembly relays and contractors are clearly visible e The Main Disconnect Switch is in the ON position and the 3 minute blowdown cycle has stopped e The ON OFF power switch is in the OFF position e Both upper and lower compartment TIMED MANUAL switches are in the TIMED position e Both upper and lower compartment timers are set for zero minutes a For Key Pad Control Panels The timer display is blank while the ON OFF switch is set to OFF If the timer is not zeroed 00 00 when power is turned on press and hold the CLEAR key on the key pad control panel until the timer is zeroed b For Dial Timer Control Panels Turn the dial counter clockwise until it points to the 0 mark Set the ON OFF switch to the ON position
174. lves 3 Check all lines and connections for leakage both inside and outside the steamer 4 If no other inspections are being made at this time replace the right side access panel Furnishing and installing the gas supply lines valves regulators and accessories is the responsibility of the owner and or installer When installing the gas supply lines and accessories observe the following instructions 1 Install the gas supply lines in accordance with local codes and or the National Fuel Gas Code ANSI Z223 1 latest edition 2 Refer to Figure 2 14 for Cleveland Range recommended layout of the gas supply lines Refer to Figure 2 2 Dimensions and Clearances for pressure data and connection locations Page 28 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Leak Testing Gas Supply Lines SteamCraft 10 Gas Supply Connection F on Dimension Diagram Pressure Regulati we ea Valve if er Main Gas KS Supply Manual Gas Shut Off Valve Figure 2 14 Recommended Gas Supply Line Layout e On Atmospheric models 24 CGA 10 use 1 2 inch IPS gas supply pipe and fittings e On Pressure models 24 CGP 10 use 3 4 inch IPS gas supply pipe and fittings 3 Install a manual shut off valve between the gas supply line and the SteamCraft 10 gas connection F on Figure 2 2 4 Install a sediment trap drip leg in the gas supply line then connect the gas supply piping to the steam gene
175. ly 104223 Nut Hex 6 32 Elastic Lock 104224 Switch Rocker SPDT 9 19972 Switch Thermal Close E Cleveland Range Inc Printed 3 93 Page 160 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 6 Mechanical Timer Control Panel Assembly Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 161 Figure 7 6 Mechanical Timer Control Panel Assembly 105737 Control Panel with Studs Mechanical Timer 105629 Label Control Panel Mechanical 20476 Timer 60 Min Mechanical Switch with Screws 3 19201 Screw Pan Head 5 40 x 250 11307 Knob Timer 104224 Switch Rocker SPDT 41350 Buzzer Assembly w Terminals 14692 Nut Hex 10 24 Elastic Lock 20477 Timer Solid State 3 Second 14617 Nut Hex 1 4 20 Black Oxide 23116 Washer Flat 1 4 S S 101873 Nut Hex 1 4 20 Elastic Lock 1 2 3 4 5 6 7 8 9 i Li ki Fe ben Fa Fa ra ra N ko N Cleveland Range Inc Printed 3 93 Page 162 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 7 Power Switch Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 163 Figure 7 7 Power Switch 105723 Label Control Panel Power 105851 Panel Control Weld Assembly 19993 Switch Rocker DPDT Light Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and
176. mbly as well as the inside of the door by wiping with a damp cloth e Replace the gasket assembly by sliding the retaining pins into the keyhole slots Either long edge of the gasket assembly can be positioned at the top 6 Replace the cleaned slide racks 7 Wipe the exterior with a damp cloth only NEVER HOSE DOWN THE STEAMER Electrical components inside the unit will not function correctly if wet or damp Figure 3 5 Door Gasket Assembly 8 After cleaning leave the steamer door open until the next steamer operation This prevents compartment odor buildup and increases gasket life Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 55 DIAL TIMER CONTROL PANEL SUMMARY Figure 3 6 Dial Timer Control Panel Figure 3 7 Steam Generator Controls Pressure Units Only On atmospheric units the ON OFF switch both energizes the unit controls and starts the water fill and steam generator preheating cycle On pressurized units the ON OFF switch energizes the unit controls and starts the steam generator water fill cycle The Steam switch starts the preheat and steam cycles 1 TIMER This dial timer sets the operating time from 0 to 60 minutes It operates as any conventional kitchen timer Turn the dial clockwise until it points to the required number of minutes When the dial is released it begins to turn counterclockwise back to 0 When it reaches 0 a buzzer sounds for 3 seconds
177. mbustibles are stored or may accumulate The surrounding area must be clear of combustibles including the space under the unit 2 Do not locate the SteamCraft 10 directly over a floor drain used for draining hot condensate from this or any other appliance The drain must be outside the body of the unit 3 A proper air supply for combustion and ventilation air is critical for safe efficient operation of SteamCraft 10 Steamers The area around the steamer must have adequate ventilation for gas fired appliances 4 The back panel and both side panels have vents for combustion and ventilation air Do not block these air vents Do not install any heat producing equipment near the air vents of the unit WARNING All clearance requirements above below and around the unit are the same for non combustible locations as for combustible locations 5 The dimension drawings Figure 2 2 specify all dimensions and clearances required for proper operation and service of each SteamCraft 10 Steamer covered in this manual Maintain at least a 3 inch operating clearance at the sides of the unit and at least a 3 inch clearance at the back Do not store articles on top of the unit 6 The lower from and right side panels of the unit are the service access panels Select an operating location that allows a minimum 12 inch clearance for service access through these panels 7 Installation of an exhaust hood over the unit may be required by local state
178. mer off at the main disconnect switch 8 Install the right side access panel and secure it in place with three screws see Figure 2 7 After completing the Initial Setup and Blowdown Inspection procedure and the Operating Test procedure the SteamCraft 10 is ready for service Refer to Chapter 3 for complete operating instructions Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 41 CHAPTER 3 OPERATION INTRODUCTION DIFFERENCES AMONG MODELS Atmospheric Generator Models Pressure Generator Models OPERATIONAL SAFETY The SteamCraft 10 is as safe and easy to operate as a touch tone phone or a kitchen timer To use the steamer safely and effectively each operator must read and understand this chapter completely before starting operation The owners and operators of the SteamCraft 10 should retain these instructions in an easily accessible location for future reference and training The owner s and operator s of the SteamCraft 10 must be aware that steam can cause serious injuries and equipment damage Pay particular attention to the Operational Safety section of this chapter and the WARNINGS and CAUTIONS displayed in this manual and on the equipment WARNING DEATH INJURY AND EQUIPMENT DAMAGE could result from the improper installation of a SteamCraft 10 Before starting a recently installed or repaired steamer be sure it is installed according to the instructions in Chapter 2
179. mmediate work area during storage site preparation and while running the utility supply lines to the operating location To protect the SteamCraft 10 from dirt and prevent loss or damage take the following precautions as a minimum 1 Leave packaged components inside the shipping canon or cooking com partment 2 Keep the SteamCraft 10 dean by covering it with a plastic tarp or drop cloth 3 Do not store other items on top of the SteamCraft 10 The characteristics of me electric power supply must match the power requirements specified on the SteamCraft 10 product identification plate The plate is located on the left side panel in the lower right comer as detailed in Figure 2 2 NEVER EXCEED 14 WATER COLUMN 1 2 psi GAS PRESSURE If the gas supply pressure exceeds 14 water column a pressure regulating valve must be installed in the gas supply plumbing to reduce the gas pressure to less than 14 water column e Natural gas pressure must be between 4 14 water column e L P gas supply pressure must be between 12 14 water column In addition to the required venting of gas fired equipment some state and local codes require me venting of steam generating equipment It is the responsibility of me owner and or installer to learn and comply with these codes e Models 24 CGA 10 and 24 CGP 10 have gas fired steam generators with an exhaust vent on top of the unit These units MUST be installed under an exhaust hood suitable for
180. mostat and energizes the upper steaming circuit directly The upper heaters turn on They remain on even when water temperature reaches 185 F and opens the Preheat Thermostat 2 In a few minutes the heater elements increase water temperature from 185 F to steaming temperature above 217 F Steam builds in the upper generator and expands into the upper cooking compartment C The lower steam generator starts a steaming cycle when its TMED MANUAL switch is set to MANUAL or a cooking time is set in TIMED mode Continuing the example from B With the lower cooking compartment set for timed steaming the lower steam generator Dial or Key Pad Timer Set to Zero Min UPPER STEAM GENERATOR CIRCUIT WN CONDENSER VALVE H LIMIT uel Ep HEATER pour SWITCHES CONTACTOR TT Gg PREHEAT Ep THERMOSTAT Sou PIP CONTACTOR Figure 5 5 Partial Schematic Compartment Steaming Circuit Printed 3 93 Page 76 UPPER COOKING COMPARTMENT UPPER STEAM PIPES STEAM GENERATOR FLOAT ASSEMBLY LOWER STEAM GENERATOR LOWER STEAM PIPES LOWER COOKING COMPARTMENT Figure 5 6 Single Steam Generator 24 CGA 10 SteamCratt 10 Service Manual Chapter 5 WIVUGIS Ct VU IM AIU CHUL IM stops its preheat cycle and the starts a steaming cycle The upper com partment continues MANUAL Steaming Refer to Figure 5 5 1 The TIMED setting by passes the Preheat Thermostat and energizes the lower steaming circu
181. n in the back of the cooking compartment Never operate the steamer without the screen in place The Printed 3 93 Page 64 Chapter 4 SteamCraft 10 Service Manual Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 MONTHLY MAINTENANCE Descale Steam Generator screen prevents large food particles from entering and blocking the drain line Any blockage of the drain line can cause a pressure buildup in the compart ment resulting in steam leaks around the door gasket Drain line blockage also adversely affects convection action of the steam in the compartment which is necessary for optimum performance 1 Inspect the drain screen and drain line for blockage Rotate the drain screen 90 degrees to inspect the drain opening clean the opening and restore the screen to its operating position 2 Clean drain with a USDA approved drain cleaner once a week Follow the instructions of the manufacturer of the cleaner 3 Flush drain with clean water Steam generator should be descaled at least once a month depending on scale buildup If you have serious steam generator scale buildup install a water treatment system for the steamer Cleveland Range Inc recommends use of the descaling kit part number 104394 which consist of liquid phosphoric acid Full descaling may take several hours or more than one acid process Perform descaling until all scale buildup is cleaned out Do not use powdered sulphonic acid descaling material old part number 101
182. n the cooking compartment reaches proper cooking temperature the timer display shows the count down NOTE A timer setting of 10 minutes in fact take 11 or 12 minutes for the timer to count down and the alarm to sound This is normal Heating the compartment and food to cooking temperature uses the additional time c To stop or reset the timer press and hold the START STOP key The cooking time display returns to the last time setting e To restart the same time press the START STOP key e To set a new time press and hold the CLEAR key and set the new time 7 When the timer counts down to zero the alarm sounds continuously the generator stops steaming and steam flow to the cooking compartment gradually stops 8 Press the START STOP key to silence the alarm The cooking time display returns to the last time set Either run this same setting again or clear and reset the timer Example 3 Cook two 14 minutes cycles a Press and hold the CLEAR key to clear the timer b Press the following number keys in sequence 1400 The display shows 14 00 c Press the START STOP key to start the timer When the display counts down to zero the alarm sounds d Press the START STOP key to stop the buzzer and the display returns to 14 00 e Press the START STOP key to start the second 14 minute cycle Manual Cooking Procedure CAUTION Steam leaks around the door cooking compartment flooding reduced cooking performance and compar
183. n the float cylinder NOTE The drain valve is normally open With power off at both the ON OFF switch and Main Disconnect the drain valve is open The steam NO YES generator and float cylinder are empty Water in the float cylinder indicates that during the last shutdown sequence water did not drain from the steam generator 1 Check for blockage in the plumbing between the float cylinder and the steam generator 2 Check the drain solenoid valve and adjoining plumbing for blockage 3 Check the drain line and air gap between the line and floor drain 4 If the plumbing drain lines and drain valve are not blocked refer to component test CT 1 and test the drain 3 Way solenoid valve Turn on the main disconnect switch and start a stopwatch NOTE When electric power is turned ON at the main disconnect switch with the panel ON OFF switch OFF an automatic 3 minute blowdown cycle scans Use the stopwatch to check that the 3 minute timer stops the blowdown cycle in three minutes IT 1 1 5 Is there 120v at terminals X1 X2 on the transformer YES NO ems Check transformer according to component test CT 19 l IT 1 2 Does water flow from BOTH the float cylinder rinse nozzle and the 3 way valve drain port NO YES NOTE During the automatic blowdown cycle the water fill rinse and drain valves are open Fresh water flushes the float assembly and drains into the steam generator Water rushing through the 3 way drain valve pulls w
184. nd is not required REPLACING MODULE WITH TH R TH W TERMINALS On modules that do not have a vent damper plug the thermostat must be connected between the transformer and the 24V terminal on the module To change out a module with TH R TH W terminals 1 Remove the wires from the 25V 2 and TH R CHECKOUT Check out the gas control system e At initial installation of the appliance e As part of regular maintenance procedures Maintenance intervals are determined by the application See PLANNING THE INSTALLATION page 1 for more information e As the first step in troubleshooting Any time work is done on the system WARNING FAILURE TO HEED THESE WARNINGS MAY CAUSE FIRE OR EXPLOSION WITH PROPERTY DAMAGE INJURY OR LOSS OF LIFE 1 If you smell gas or suspect a gas leak turn off gas at manual service valve and evacuate the building Do not try to light any appliance do not touch any electrical switch or telephone in the building until you are sure no spilled gas remains Gas leak test must be done as described in Steps 1 and 5 below on initial installation and anytime work is done involving the gas piping STEP 1 Perform Visual Inspection With power off make sure all wiring connections are clean and tight Turn on power to appliance and ignition module Open manual shutoff valves in the gas line to the appliance Do gas leak test ahead of gas control if piping has been disturbed GAS LEAK TEST Paint pip
185. nerator heating components remain off and do not turn on until the STEAM switch is pressed When this switch is pressed the amber light goes out and the generator heating components begin to heat the water to steam 6 Pressure Gage This gage shows the pressure of the cooking compartment steam supply The pressure should not exceed 10 psi Page 56 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 COOKING OPERATIONS DIAL TIMER CONTROL PANEL Summary of Cooking Operations Power ON Automatic Fill Cooking operations are simple and direct These operations are summarized below in the sequence they are usually performed Following the summary are detailed explanations of each cooking operation These explanations include cautions warnings and instructions that are critical to maintaining full warranty coverage and safe efficient operation of the Steam Craft 10 It is important to read and understand the details of each operation Power On Automatic Fill Start steam supply Inspect the cooking compartment s Preheat the cooking compartment s Place food into the cooking compartment s Ho nF WN rs Select the operating mode e Manual Mode For continuous steam cooking until the operator stops the steaming cycle e Timed Mode Set the Timer for continuous steam cooking until the timer counts down and stops the steaming cycle 7 Remove food from the cooking compar
186. ng Diagrams are included with the other service drawings in Chapter 7 These electrical drawings are Figures 7 16 through 7 23 There are two areas of variation among SteamCraft 10 steamers steam generator power source and control panel type The differences associated with these variations are summarized below Throughout this chapter notations identify sections that only apply to specific units or models Sections without these notations apply to all models and variations Steam Generator Power Source The SteamCraft 10 steam generators are heated either by gas or electricity There are many pans functional and service differences between units with electric steam generators and units with gas fired steam generators Aside from the obvious difference between generator heating components the major difference between gas and electric models is the number of steam generators in each unit The number of generators effects the composition control and function of the water supply preheating steam supply and rinse systems e Units with electric powered steam generators have a separate generator for each cooking compartment e Units with gas fired steam generators have one generator that supplies steam to either or both cooking compartments Page 72 SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 Control Panel Type All model Steam Craft 10 s have either Key Pad Control Panels or Dial Timer Control Panels There are a
187. ng for blockage 2 If the float rinse nozzle plumbing and valve are not blocked refer to component test CT 3 and test the rinse solenoid valve IT 1 5 Does water flow from the 3 way valve drain port through the drain piping to the floor drain YES NO NOTE During blowdown a continuous stream of water should flush through the 3 way valve drain port through the drain plumbing and into the floor drain Check the 1 inch air gap between the drain piping and the floor drain for this water flow No water flow from the 3 way valve to the floor drain indicates three possible malfunctions e The plumbing between the drain valve and fill valve or drain valve and floor drain is blocked e The 3 way drain valve is malfunctioning e The fill solenoid valve is malfunctioning 1 Check the drain solenoid valve and adjoining plumbing for blockage 2 Check the drain line and air gap between the line and floor drain for blockage 3 If the plumbing drain lines and drain valve are not blocked refer to component test CT 1 and test the drain solenoid valve veland Range Inc Printed 3 93 Page 114 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 4 If the 3 way valve is functioning properly check the steam generator water fill VES Conmnned solenoid valve and associated plumbing for blockage 5 If the water fill plumbing and valve are not blocked refer to component test CT 4 and test the water fill solenoid val
188. ng properly Continue the procedure with test IT 1 6 IT 1 3 Does water flow from EITHER the float cylinder rinse nozzle or the 3 way valve YES NO NOTE During the blowdown cycle the 3 Minute Timer activates the fill and rinse solenoids opening the valves If the timer malfunctions neither solenoid will activate and open its valve No water flow from both the float rinse nozzle and the 3 way valve indicates three possible malfunctions e The 3 Minute timer is malfunctioning e Both the rinse and fill solenoid valves have failed simultaneously e Both the rinse and drain solenoid valves have failed simultaneously A single component failure is more probable than a double simultaneous failure 1 Test the 3 Minute timer according to component test CT 2 2 If the 3 Minute timer is working properly according to component test CT 2 proceed to IT 1 4 and begin testing the fill solenoid valves IT 1 4 Does water flow through the float cylinder rinse nozzle ves AG If water does not flow through the rinse nozzle 1 Check the rinse nozzle solenoid valve and associated plumbing for blockage 2 If the float rinse nozzle plumbing and valve are not blocked refer to component test CT 3 and test the rinse solenoid valve Continued on next page Cleveland Range Inc Printed 3 93 Page 100 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 IT 1 5 Does water flow from the 3 way valve drain port through the
189. ning the valve Refer to 3 Minute Timer on page 85 The valve operates at a maximum water pressure of 60 psi Higher pressures cause unnecessary valve wear and require frequent valve replacement If necessary install a pressure regulator set at 50 psi The condenser solenoid valve controls cold water flow to the condenser at the back of each cooking compartment The valve injects cold water into the condenser to cool the vapor and fluid draining from the steamer This reduces pressure in the Condenser Solenoid Valves compartment drain Low pressure in the drain maintains optimum performance of the steamer With a hot or warm water supply connected to the condenser solenoid valve the condenser WILL NOT function properly and equipment damage may result Operation of this valve is detailed on page 80 Page 88 SteamCraft 10 Service Manual Chapter 5 Models 24 CGA 10 and 24 CEA 10 Preheat Thermostat Key Pad and Dial Timers Cleveland Range Inc The preheat thermostat monitors steam generator temperature and controls heating component operation during the preheat cycle The thermostat is a double throw thermal snap switch mounted on the steam generator The switch operates at 185 F When steam generator temperature reaches 185 F the normally closed preheat side of the switch opens and stops the heating components When the steam generator temperature drops the switch closes and restarts the heating components This cycle continues until
190. ntactor for an open coil Terminal Block Refer to Connection Points and Wiring section on page 92 and inspect the terminal block and its connection leads accordingly CT 23 amp CT 24 Heater and Dryer Elements Model 24 CEA 10 1 Set the voltmeter to the 500 VAC scale 2 Set the ON OFF switch to the ON position 3 Set the TIMED MANUAL switch to the MANUAL position Operate the SteamCraft 10 for about 10 minutes or until it is steaming continuously and the water in the float cylinder is at operating level 4 Refer to Figure 6 41 and check for 230 VAC across all three heater coils e If the meter reads 230 VAC across all three heater coils continue this procedure with step 5 e If the meter does not read 230 VAC across one or more of the heater coils the fault is not in the heater elements a Check the wires to the heater and dryer elements for continuity and secure connections Replace or repair faulty wiring and connec tions b Check for 230 VAC in each phase at the main power supply switch c Test the heater contactor d Check the resistance of heater and dryer elements as described in steps 5 and 6 of this procedure 5 Prepare the SteamCraft 10 components for testing the heater and dryer element resistance as described below Perform the resistance tests as described in step 6 a Set both the ON OFF switch and the main power switch to the OFF position b Refer to the schematic wiring diagram and disconnect all
191. nted 3 93 Page 174 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 10B Float Assembly Model 24 CGA 10 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 175 7 10B Float Assembly Model 24 CGA 10 1058431600 Hose 1 4 ID x 1 2 OD x 16 Long 104383 Clamp Nylon 1 2 OD Hose 104380 Fitting Hose Barb 1 4H x 1 8 MPT 105787 Fitting Hose Barb 90 1 4 H x 1 8 MPT 104039 Cap Float Top 104040 Cap Float Bottom 104276 Screw Hex Hd 1 4 20 x 5 5 S S 14618 Nut Hex 1 4 20 S S 23105 Washer Split Lock 1 4 S S 2 3 4 5 6 7 8 9 104041 Gasket Float Assembly 103726 Switch Assembly Float 1040190388 Tube Polysulfone 2 x 1 25 x 3 875 06240 Fitting Hose Barb 3 4 T x 3 4 105925 Bracket Mounting Float Assembly 1060932500 Hose 3 4 ID x 3 16 Wall x 25 Long 105847 Clamp Plastic 1 1 8 OD Hose Cleveland Range Inc Printed 3 93 gt S4 A To E TYP HOSE CONNECTION E KINE E Ea J RK Figure 7 11 A Water Inlet System Model 24 CEA 10 Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 177 ae 7 11A Water Inlet System Model 24 CEA 10 104284 Bracket Mounting Steam Solenoid 101872 Screw Thread Cutting 8 32 x 25 105786 Fitting Hose Barb 1 4 H x 1 4 90 22218 Valve Solenoid 1 4 N C 120V 104381 Fining Hose Barb 1 4 Hx 1
192. o indicate the end of the steaming cycle e Pressing the START STOP key halts the buzzer and resets the timer circuits and display to the previously selected time e The CLEAR key resets the timer circuits to 00 00 Printed 3 03 Models 24 CGA 10 and 24 CEA 10 3 SECOND TIMER BUZZER Figure 5 19 Mechanical Timer Figure 5 20 3 Second Timer and Buzzer Heater Element Model 24 CEA 10 Dryer Element Model 24 CEA 10 High Temperature Limit Switch Cleveland Range Inc SteamCraft 10 Service Manual Chapter 5 e Page 89 Compartment Thermostat electronic key pad units only The compartment thermal switch delays timer countdown until compartment temperature is above 190 F This compensates for frozen or partially thawed food Opening the door during the cooking cycle also can require additional cooking time The compartment thermal switch controls the pause circuit in the timer Mechanical Timer Operating the dial timer is explained in Chapter 3 After selling the dial the timed steaming cycle starts Timer contacts L1 T1 close to energize the condenser solenoid and heater contactor See Figure 5 19 Contacts L1 T3 open to enable the 3 second timer When time elapses and the dial reads 0 timer contacts L1 T1 open to de energize the condenser solenoid and heater contactor Contacts L1 T3 close to supply power to the 3 second timer and buzzer 3 Second Timer and Buzzer mechanical timer units only The buzzer provide
193. o be performed For each task the table references applicable notes from Figure 2 1 and the manual pages on which the task instructions begin Complete the preparation tasks in sequence and then the installation tasks Installation requirements may vary from site to site adapt the check list accordingly Table 2 1 Installation Check List Refer to Figure 2 1 TASK FIGURE 2 1 PAGE REFERENCE COMPLETED NOTES Preparation Check electric power requirements 1 2 10 Check gas supply requirements gas models only 2 3 4 10 Check exhaust hood requirements 12 10 Test supply water quality 5 6 11 Select water treatment system 6 16 Select operating location 17 Unpack inspect and protect me unit 18 Installation Position and level steamer 11 19 Install and connect drain line 9 10 20 Install exhaust hood 12 22 Install and connect electrical line 1 2 22 Install and connect water supply lines 5 6 7 8 24 Install water treatment system 6 26 Test water supply lines 27 Install and connect gas supply lines gas models only 2 3 4 27 Test gas supply lines gas models only 28 Bleed gas line at union upstream of gas valve gas models only 3 30 Test burner igniter control module gas models only 31 Perform final setup and checkout 33 1 2 Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 uam Connection Detalls on Dimension Drawings Blectrical Supply A SteamCraft 10 Service Manual Chapter 2 Page 9 INSTALLATION DIAGR
194. o the ON position the preheat circuits are energized However while the water in the steam generator is below the safe operating level the heating components do not turn on B When a safe operating level is reached the heating elements or heat exchanger tubes are covered with water The lower float switch closes and activates the heating components Heating continues until the water temperature in the generator reaches 185 F C When the water temperature reaches 185 F the preheat side of the preheat thermostat switch opens and the heating components turn off The switch closes and restarts the heating components when the water temperature drops below 185 F This preheating cycle continues simultaneously with the water filling cycle until the steaming cycle starts or the ON OFF switch is set to the OFF position e The gas fired Model 24 CGA 10 has one steam generator which supplies steam to either or both cooking compartments The ON OFF switch initiates the fill and preheat cycles The preheat cycle stops when the ON OFF switch is set to OFF or when the control panel of either cooking compartment starts the steaming cycle e The electric heater Model 24 CEA 10 has a steam generator for each cooking compartment Unless the ON OFF switch stops operation of both generators each independently continues the fill and preheat cycles until its associated compartment control starts the steaming cycle Models 24 CGA 10 and 24 CEA 10 SteamCraf
195. of food from entering and blocking the drain Cleveland Range recommends preheating the SteamCraft 10 cooking com partments to maintain accurate efficient cooking times Preheating is espe cially recommended for the first cooking cycle after power on and if there has been a long idle period between cooking cycles 1 Close the steamer compartment door s 2 Set the steamer compartment controls e Set the TIMED MANUAL switch to the TIMED top position e Set the Timer for 5 minutes by turning the dial clockwise until it points to the 5 mark Page 58 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Place Food into the Cooking Compartment s Select The Operating Mode 3 Steaming continues for the set time When the preheating is completed the steam automatically shuts off and a 3 second buzzer sounds The SteamCraft 10 steamer is ready for cooking operations CAUTION Some foods drip juices Use a solid catch pan under perforated pans when steaming food that will drip juices Failure to use a catch pan can cause a clogged drain 1 For best cooking results use shallow 2 1 2 inch deep perforated pans without covers Cleveland Range model number PP 2 5 These give the best heat transfer and shortest cooking time 2 When cooking foods that will drip such as meat poultry or fish put a solid catch pan in the bottom slide of the racks 3 Put food into the pans and slide the pans
196. oiler 1057051 Orifice LP Gas Vertical Boiler Optional 105781 Burner Inshot 30 000 BTU 105728 Bracket Burner Support 105727 Bracket Burner Clamping 105940 Gasket Gas Manifold 105784 Pilot Assembly Intermittent Pilot Natural Gas 1057841 Pilot Assembly Intermittent Pilot LP Gas Optional 19114 Screw Pan Head Phillips 8 32 x 375 Type F 106123 Screw TORX Slot Pan Head 10 32 x 1 2 23116 Washer Flat 1 4 S S 23105 Washer Split Lock 1 4 S S 14618 Nut Hex 1 4 20 S S 101879 Screw Hex Wash Head 6 32 x 1 2 105786 Fitting Hose Barb 1 4 H x 1 4 MPT 90 106129 Grommet Rubber 1 4 OD 1061455000 Wire Assembly 18 Gauge 50 Long 20356 Terminal Slipon Full Insulation 1061445000 Wire Assembly Ignition 50 Long 105984 Tube Formed Pilot to Gas Aluminum Cleveland Range Inc Printed 3 93 Page 190 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 16 SteamCraft 10 Schematic Diagram Electronic Timer 24 CEA 10 Cleveland Range Inc Printed 3 93 SteamCraft 10 Service Manual Chapter 7 Page 191 Models 24 CEA 10 and 24 CGA 10 HEATING oro HORR G a 2 5 5 Figure 7 17 SteamCraft 10 Schematic Diagram Mechanical Timer 24 CEA 10 Printed 3 93 Cleveland Range Inc Page 192 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 18 SteamCraft 10 Schematic Diagram Electronic Timer 24 CGA 10 Printed 3 93 Cleve
197. omplete automatic blowdown and an optional incremental blowdown e Complete Every time the operator set the ON OFF switch from ON to OFF the SteamCraft 10 automatically drains and flushes the steam generator for 3 minutes All sediment and soft scale is washed down the drain e Incremental Optional During operation the drain valve automatically cycles open for one second each minute This sudden and frequent flow of water flushes out bottom sediment and dilutes the TDS concentrate This option is recommended if there is no SteamerGard installed and the supply water is hard Usually the SteamCraft 10 main disconnect switch is left on If the main disconnect switch is in the off position turn it on as follows 1 Check that the water supply valves are open 2 If the unit power is on turn it off by pressing the OFF bottom end of the ON OFF switch 3 Refer to the main disconnect switch in Figure 3 1 and turn on electric power to the SteamCraft 10 CONTROL PANELS Figure 3 1 Main Disconnect Switch The standard SteamCraft 10 control panel illustrated in Figure 3 2 has an electronic key pad timer with a temperature compensation circuit The circuit allows the timer to count down only while the cooking compartment is at cooking temperature An optional dial timer control panel illustrated in Figure 3 6 on page 55 is also available This panel has a dial timer without a temperature compensation feature The timer starts countin
198. on the switch turns off immediately and the automatic blowdown cycle starts DO NOT turn off the power at the main disconnect switch until blowdown is complete The cycle takes about 3 minutes 7 When blowdown is complete turn the steamer off at the main disconnect switch 8 Install the right side access panel and secure it in place with three screws see Figure 2 7 After completing the Initial Setup and Blowdown Inspection procedure and the Operating Test procedure the SteamCraft 10 is ready for service Refer to Chapter 3 for complete operating instructions Timer Test Procedures Dial Timer Control Panel 1 Verify that electrical power and control settings are retained from the previous Operating Test e Main Disconnect Switch is ON e ON OFF switch is ON e Both upper and lower TIMED MANUAL switches are set to MANUAL e Both upper and lower Timer Dials point to 0 minutes If either timer is not zeroed turn the dial counter clockwise until it points to the 0 mark 2 Set the TIMED MANUAL switch to the TIMED position With the timer zeroed the steam generating cycle stops a The heating system turns off and condenser flow stops b Steam stops entering the cooking compartment 3 Open the cooking compartment door to vent the steam and allow the compartment to cool slightly After 2 or 3 minutes close the door and continue testing 4 With the TIMED MANUAL switch on TIMED turn the dial of the timer to 10 minutes 5
199. only when the TIMED MANUAL switch is set to MANUAL or when a cooking time is set in TIMED mode It does not open during the preheat cycle B In the 24 CEA 10 models the condenser solenoid valve is energized through the TIMED MANUAL switch or the Preheat Thermostat The condenser solenoid valve opens whenever the heating elements are energized during both steaming and preheat cycles HI LAOT LC Lwc o BEATE Bou MOB ou Figure 5 12 Condenser Operation 24 CEA 10 Figure 5 11 Condenser Operation 24 CGA 10 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 Drain Valve Functions The inlet port receives water trom the fill vaive Water fiowi The two way port from the gan r aoe en port enters the CO OH om r b the steam dram manifold aenerator fit A Draining VALVE ON OFF is OFF CLOSED STEAM GENERATOR DRAINING OR EMPTY DRAIN MANIFOLD OPEN SteamCraft 10 Service Manual Chapter 5 Page 81 The drain solenoid valve acting with the water fill valve performs three critical steam generator functions The valve directs water flow to fill drain and rinse the steam generator Refer to Figure 5 13 The valve has one water inlet and two outlets One outlet directs water to the drain manifold The other directs water flow to the steam generator A Draining the Steam Generator The solenoid drain valve is normally open directing water flow to the drain manifold
200. onnect the plug in model to D80D 1 Remove th plug from the terminal strip on the ignition module case and discard 2 Using the wiring harness supplied insert the matching pin plug into receptacle on case and other end to vent damper To connect the D80B follow the wiring diagrams supplied with the vent damper or see Fig 7 for typical connections Connect Ignition Module 1 Connect remaining system components to the ignition module terminals as shown in the appropriate wiring diagram Figs to 10 e Fig 1 is a basic circuit for a heating only atmospheric burner with S8600F H M S8610F H S8660D or S8670D e Pe 2 shows S8600F H M S8610F H with vent damper plug in a heating only atmospheric burner system with D80D vent damper Never use a vent damper in an LP gas system or ina fan assisted combustion system Figs 3 and 4 show S8600A B S8610A B with separate sensor and ingitor with and without the D80D vent damper e Figs 5 10 shown S8600F H M S8610F H S8660D and S8670D in a variety of systems with alternate connections for modules with vent damper plug Remember however thata vent damper should not be used in a fan assisted combustion system or an LP gas system and that the vent damper plug must not be removed except to connect the module to a D80D with the plug in cable S8600A B S8610A B can be substituted in these dawings by simply connecting the ignitor and sensor as shown in Figs 3 and 4 2
201. ons Replace or repair faulty wiring and connections e For key pad timer units only If the meter reads 115 120 VAC between these TIMED MANUAL and ON OFF switch wire connections the condenser solenoid wiring is not faulty a Test the float low level switch b Test the high temperature limit switch Printed 3 93 Cleveland Ranges Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 135 Figure 6 26 Condenser Solenoid Valve Bottom 24 CGA 10 CT 11 Steam Relief Solenoid Valve Model 24 CGA 10 1 Set the voltmeter to the 250 VAC scale 2 On both upper and lower control panels set the ON OFF switch to the OFF position 3 Disconnect one end of the steam vent tube between the steam relief valve and the drain Place a container or cloth under the open fitting to catch any dripping condensation 4 On both upper and lower control panels set the ON OFF switch to the ON position and the TIMED MANUAL switch to the MANUAL posi tion Observe SteamCraft 10 operation water fills the steam generator and the steaming cycle starts For a steam supply suitable to this test allow the unit to generate steam for about five minutes or for at least one cycle of the upper limit float switch 5 On both upper and lower control panels zero the timer Observe the open vent tube fitting below the steam relief valve during the following sequence of control settings a Set the TIMED MANUAL switch on both
202. oper operation Limit control operation can be checked by blocking the circulating air inlet or temporarily disconnecting the electrical supply to the blower motor and determining that the limit controller acts to shut off the main burner gas 15 Applicable only to boilers a Determine that the circulating water pumps are in operating condition b Test low water cutoffs automatic feed water controls pressure and temperature limit controllers and relief valves in accordance with the manufacturer s recommendation to determine they are in operating condition 16 Add the labels see 1 6 1 n and o on the appliance EXHIBIT B OF ANSI STANDARD Z21 71 FOR AUTOMATC INTERMITTENT PILOT IGNITION SYSTEMS FOR FIELD INSTALLATION Honeywell Inc 1885 Douglas Drive N Golden Valley MN 55422 4386 International Sales Offices in all principal cities of the world Manufacturing in Australia Canada Finland France Germany Japan Qr Mexico Netherlands Spain Taiwan United Kingdom U S A Qi aay many Cleveland Range Inc PRINTED IN U S A Printed 3 93 209 210 SteamCraft 10 Service Manual Chapter 8 Models 24 CGA 10 and 24 CEA 10 35E96 SERIES COMBINATION VALVE WHITE RODGERS ELECTRIC TWO STAGE l D B 1 amp H S Operator Save these instructions for future use FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND OR PROPERTY DAM
203. or EE ES SE e e 24 CEA 10 1 quart in each steam generator e 24 CGA 10 2 quarts e 24 CEP 10 1 gallon e 24 CGP 10 1 gallon 8 Check that water is at the normal operating level by checking that float cylinder water level is one inch below the top of the cylinder Add water until level is correct in the float switch 9 Preheat the water in the steam generator e On atmospheric units leave the power switch on Water will automatically preheat to 160 degrees e On pressure units press the steam switch wait 4 minutes time to heat water to approximately 160 degrees then momentarily press the ON OFF switch OFF and back ON The yellow steam light will be on A bubbling and hissing sound indicates that the acid is dissolving the scale 10 Leave acid in the steam generator for at least 1 1 2 hours Full descaling may take several hours depending upon the amount of scale buildup If acid is consumed bubbling and hissing stops add one or two more cups of add to the steam generator solution NOTE If steam generator is too full to add more add press the ON OFF switch to OFF for a few seconds to drain some solution Then press ON OFF switch back ON 11 After the time listed in step 13 elapses switch the ON OFF switch to OFF thus starting the steam generator drain and blowdown 12 Inspect the steam generator as described in step 7 If scale is completely removed go to step 16 otherwise repeat steps 7 through 15 until all sca
204. or receptacle 90 deg Rubber boot Rajah connector receptacle straight rubber boot connect insulated 334801 30 30 in 1 4 in quick connect insulated TABLE 3 RECOMMENDED IGNITION CABLE FOR FIELD ASSEMBLY CABLE TYPE VOLTAGE RATING rms UL Style 3217 UL Style 3257 Models 24 CGA 10 and 2A CEA 10 Cable must be no longer than 36 in 0 9m To construct a cable fit one end of ignition cable with in diameter Rajah connector receptacle and the other with a 1 4 in female quick connect Protect both ends with insulated boots NOTE The cable must not run in continuous contact with a metal surface or spark voltage will be greatly reduced Use ceramic or plastic standoff insulators as required To install 1 Connect one end of the cable to the male quick connect SPARK terminal on the ignition module 2 Connect the other end of the cable to the igniter or igniter sensor stud on the pilot burner igniter sensor Connect Vent Damper The D80B Vent Damper can be used with all ignition modules although the Molex plug provided on some modules simplifies wiring connections when used with the D80D Plug In Vent Damper Once a module with vent damper plug has powered a vent damper circuit it cannot be used in a gas system without a vent damper A non replaceable fuse in the module blows on initial power up Once this fuse has blown the module won t work unless the vent damper is connected To c
205. ot spark igniter is a combination pilot burner spark igniter and flame sensor The pilot burner directs the pilot flame toward the main burner if assure reliable lightoff The igniter generates a high voltage spark that light the pilot burner The flame sensor monitors the pilot flame during ignition and while the main burner is on Automatic Gas Valve The automatic gas valve regulates gas flow to the pilot and main burners in response to signals from the gas control module The gas valve also includes a manual shutoff valve and two stage flow control The normally open steam relief solenoid valve controls ventilation of the steam generator The valve is open during the water fill and preheat cycles to vent air and water vapor from the generator assuring that pressure inside the generator does not build above the external atmospheric pressure When the steaming cycle starts the valve closes to direct the steam to the lower cooking compartments The normally closed compartment steam valves control steam flow into the cooking compartments Each compartment has a steam valve When the compartment controls are set for steaming the steam valve for that compart ment opens to allow steam flow from the steam generator into the compart ment When only one compartment is set for steaming the steam valve for the other compartment remains closed Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page
206. ound wire and gas control as their causes described i iate troubleshooti hart Fig 14 or 15 If necessary adjust pilot flame by turning the pilot Kee Oach ine wipe pow k vOe ware hmmm bout comrode emesis comurstern aw meng ABO check af pore ych en corbuaton ae reg eyun 4 oaas 2 tho wert GeTUR H vaad o epen and ond Can a Mate On eege wen vers camer pa Mahe Swe wri Carpe Am en GEE ei Af than sunowed Renace vent career CACR g t tg d eng weeny d er anata ered gap ard cxveect Cheon taa of geg queens chia hor sgn of meting er bucking Tahe paac aceon 10 seeks Cie mei Soo bors ome aa a a LS gt lt Diaen that af marani pas sniega are ee Zut ibang and GOEIE Bre good S gt tune geben R LIGHTS YES aer ocat Check caouc connections pamate sande and tet exermor an ges carer Chack for 24 Vac SCH PV MVIPY ernai on feie H otage np splam pas omic d eg eet mp lt Crack tor M Vac aoan MS AV NY Woren 3 no vonage vapi module Chach ence comactnns panagan dws at gin Conard E hoy sg pat CONTO oF d green orm NOTE E SECH 06 108 goss ety locket poset pyem Fer SELDOM amet 6 mu mn tor satry or met soon Chach Cramer E gea Cape anc greed ame NOTE E ground amp pane oF on mc taitona wey CHA EL even Garen OLEE reen ar Sep teh Cf Chechens Crrect TAN Geet Fiegen covert Lame opt and maddy Ad bine E cracks we gier sting Podua CAL FOR HEATERS Crech tor proper
207. overed or suspected observe the following guidelines in preparing a shipping damage claim e Write down a description of the damage or the reason for suspecting damage as soon as it is discovered This will help in filling out the claim forms later e As soon as damage is discovered or suspected notify the carrier who delivered the shipment e Arrange for a carrier representative to examine the damage e Fill out all appropriate claims forms and have the examining carrier sign and date each form NOTE If there is not enough room to work on the drain electrical and water lines with the SteamCraft 10 in place skip this procedure until they are completed While preparing the utility lines protect the SteamCraft 10 as described on page 10 After the lines are prepared position and level the SteamCraft 10 then connect the utility lines Adjustable Leveling Legs The supporting legs of the SteamCraft 10 Steamer are 6 inches long when the adjustable feet are fully retracted This provides the minimum 6 inch space below the unit required by NSF sanitary standards The adjustable feet can be extended approximately 2 inches to provide a means of leveling the SteamCraft 10 Positioning and Leveling 1 Check that all Unpacking and Inspection tasks are complete 2 Thoroughly clean the floor area that will support the SteamCraft 10 3 Using a level determine and mark the highest corner of the floor area that will support the leveling legs
208. ow stops Stand back when opening the compartment door Open the door slightly to allow steam to vent before looking or reaching into cooking compartment Do not reach into cooking compartment until the steam has cleared Do not reach into steamer or handle hot items without wearing heat proof gloves Wet or damp gloves conduct heat and may cause bums when touching hot items Page 60 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Power OFF Automatic Blowdown 1 Carefully open the cooking compartment Doors and remove the pans from the slide racks 2 If the SteamCraft 10 will be used again in a few minutes shut the door to maintain the cooking compartment temperature 3 If another use is not planned for more than half an hour leave the cooking compartment door slightly open to reduce internal pressure while the steam condenses and the compartment cools 4 If the SteamCraft 10 is not being used again during this shift perform the Power Off and Shut Down and Cleaning Procedures Blowdown occurs automatically when the unit is turned off at the ON OFF switch During blowdown the steam generator and float control are rinsed with fresh water flushing deposits from the heating elements and generator bottom Blowdown at frequent intervals helps decrease mineral buildup in the steam generator and reduces the frequency of descaling and other maintenance Blowdown Procedure When the SteamC
209. prover pressure switch the burners do not light Failure of any of five components can prevent the burner fan from starting the burner ignition sequence in Manual mode 1 Check the TIMED MANUAL switch according to component test CT 9 2 Depending on the cooking compartment controls being tested check the relay R1 or R2 according to the relay testing instructions in Component Testing Fundamentals Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 105 3 Three of the components that could cause ignition failure have already been YES Continued checked in Phase 2 IT 2 3 e The 24 Vac transformer e Relay R3 The Fan Motor IT 3 2 Do the burners ignite shortly after the fan motor starts YES NO emm If the burner ignition and control system was not checked in Phase 2 do so now Refer to IT 2 4 and Chapter 8 IT 3 3 Is the condenser spray operating YES NO NOTE During steaming functions a continuous stream of water sprays into the condenser fitting Check the 1 inch air gap between the drain piping and the floor drain for this water flow No water flow from the condenser to the floor drain indicates four possible malfunctions 1 Check the TIMED MANUAL switch according to component test CT 9 2 Check the condenser solenoid valve and adjoining plumbing for blockage 3 Check the drain lines between the condenser fitting and floor drain for b
210. pt to light for 90 seconds e If no ignition occurs the system will automatically reset in 6 7 minutes 2 System may be reset manually by turning the power switch ON OFF Switch off for 5 minutes and back on 4 During the fill cycle check the timer display If the timer is not zeroed 00 00 clear the timer by pressing and holding the CLEAR key on the key pad control panel 5 When the generator is full the SteamCraft 10 automatically stops water flow Start Steam Supply On pressure units press the Steam switch to heat the water in the generator In atmospheric units the water is automatically heated after filling when the ON OFF switch is turned on Inspect the Cooking Compartment CAUTION Steam leaks around the door cooking compartment flooding reduced cooking performance and compartment implosion can be caused by a blocked drain or drain screen Inspect and clean the drain and drain screen before each use Never operate the steamer without the screen in place Page 48 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Figure 3 4 Compartment Drain Screen Preheat the Cooking Compartments At the back of the cooking compartment the drain is covered by a movable drain screen Refer to Figure 3 4 The screen prevents large food particles from entering and blocking the drain line Any blockage of the drain line or screen can reduce drainage from the cooking comp
211. r and dryer element insulation resistance as described below Perform the insulation resistance tests as described in step 8 a Set megohm meter megger at 500 or 1000 volts If a megger is not available zero adjust an ohmmeter on the highest scale b Check that the water in the float cylinder is at operating level c Continue this procedure with Step 8 8 Refer to Figure 6 45 and check the insulation resistance of each heater and dryer element lead to ground Use the element assembly stud as ground e If the resistance is infinite greater than 1 megohm on all coils of the heater element the heater element passes the insulation test If the resistance is infinite Figure 6 44 Megger or Ohmmeter greater than 1 megohm for the dryer element the Connection for Insulation Resistance Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 147 dryer element passes the insulation test Reconnect heater and dryer leads Make sure the connections are tight e If the resistance is low less than 1 megohm on all coils of the heater element replace the heater element If the resistance is low less than 1 megohm for the dryer element replace the dryer element Connect the heater and dryer leads Make sure the connections are tight CT 25 Relay R 1 Model 24 CEA 10 RED 1 Set the voltmeter to the OHMS scale 2 Set the ON OFF switch to the ON position briefly and then to t
212. r connects to the center terminals of the double pole double throw ON OFF switch In the ON position as shown in Figure 5 15 the switch connects the center terminals to the bottom terminals as viewed from the terminal side rear of the switch e In units with the electronic key pad timer the ON OFF switch in the ON position supplies power to one side of the timer countdown circuits through the compartment thermal switch The ON OFF switch also supplies power to the 24 volt transformer which provides control power to the key pad timer e In units with the mechanical dial timer the ON OFF switch set to ON supplies power to one side of the 3 second timer and buzzer for operation by the timer control Setting the ON OFF switch to OFF removes power from the steamer com ponents that control the various operating cycles and starts the 3 minute timer circuit which controls the steam generator blowdown and float cylin der rinse cycle Setting the ON OFF switch to ON supplies power to the center terminals of the TIMED MANUAL switch of both cooking compartments Refer to Figure 5 16 When the this switch is set to MANUAL the compartment steaming circuits are energized directly When this switch is set to TIMED the compartment steaming circuits are energized through the timer with a steaming time set The components in the compartment steaming circuit differ for each model e For Model 24 CEA 10 the condenser solenoid and heater contactor a
213. r more frequently to find out how often it must be cleaned Clean the water line strainer at least once a year as follows 1 Close the valve s in the steamer water supply line s 2 Unscrew the filter cap from the bottom of the strainer Refer to Figure 4 3 3 Remove the filter screen and wash it with clean water 4 Check the O ring for wear and replace it if necessary 5 Put screen back into cap and replace the cap in the strainer 6 Open water supply valve s and check for water leaks Printed 3 93 Page 68 Chapter 4 SteamCraft 10 Service Manual Models 24 CGA 10 24CGP 10 24 CEA 10 24 CEP 10 OPERATOR S TROUBLESHOOTING GUIDE This troubleshooting guide includes a list of symptoms that may be encountered during routine operation and maintenance The first column on the left problem describes these symptoms The second column lists possible causes for the problem listed in column one The third column lists remedies and or references for the problems and causes in columns one and two The causes and remedies are listed in the order they should be checked with the least costly PROBLEM Switch light does not turn on when ON OFF switch is pressed on Power ON and steam generator does not fill ON OFF switch light on and steamer does not make any steam in manual or timed mode Abnormal amount of steam coming from drain Printed 3 93 POSSIBLE CAUSE Power turned off at main dis connect switc
214. r reading drops to 0 VAC and the buzzer stops sounding the 3 second timer and buzzer are working properly End this procedure here e If the voltmeter reading remains at 115 120 VAC and the buzzer continues to sound for more than 3 seconds replace the 3 second timer e If after 3 seconds the 115 120 VAC meter reading drops to 0 VAC but the buzzer does not sound either the buzzer wiring or the buzzer are faulty Figure 6 34 3 Second Timer and Buzzer a Check the wires from the 3 second timer to the buzzer for continuity Lower Compartment 24 CGA 10 and secure connections Replace or repair faulty wiring and connections b If the wiring and connections are good replace the 3 minute timer CT 16 Electronic Timer Transformer 24 volt 1 Check that the main power switch is in the ON position 2 Set the voltmeter to the 120 VAC scale 3 Refer to Figure 6 35 and check for 24 VAC across transformer secondary terminals e If the meter reads 24 VAC the transformer is good End this procedure here e If the meter reads no or low voltage across terminals X1 X2 continue this procedure with step 4 4 Set the voltmeter to the 250 VAC scale 5 Check power at main power switch Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 139 COMPARTMENT THERMAL SWITCH Figure 6 35 Electronic Timer Transformer e If the meter does not read 115 VAC at the
215. r to the proper scale For example if checking 115 120 VAC circuits use a higher voltage meter scale such as 250 or 500 VAC Use AC scales for AC circuits DC meter scale readings on AC circuits yield incorrect results If your voltmeter doesn t have the exact scale as stated in any component test use any convenient scale higher than the expected voltage For example if the test calls for setting the meter on the 250 VAC scale for an expected reading of 120 VAC and your meter doesn t have a 250 VAC scale use the 500 VAC scale Figure 6 4 shows a typical voltmeter connection INITIAL TEST PROCEDURE INTRODUCTION The initial test procedures identify component malfunctions through a systematic examination of SteamCraft 10 operation The procedures involve operating the Steam Craft 10 observing the results and following the appropriate instructions Depending on the results the procedure recommends either corrective action or further testing procedures When the malfunction is isolated to one or a few possibilities the procedure references specific tests in the Component Test Procedures The initial test procedures isolate malfunctioning components by comparing actual performance to expected performance To thoroughly understand this process the technician should know the theory of operation and the component and circuit functions as described in Chapter 5 Test Procedures Layout and Conventions Printed 3 93 The Initial Test Proced
216. raft 10 is turned off the blowdown cycle starts and runs automatically The complete cycle takes approximately 3 minutes 1 Press the OFF bottom end of the ON OFF switch to turn off the SteamCraft 10 The red indicator on the ON OFF switch turns off Do not turn power off at the main disconnect switch during blowdown 2 Automatically the drain valve begins to draw water from the steam generator 3 The fill and drain valves operate simultaneously for 3 minutes 4 At the end of the 3 minute blowdown cycle the fill valve closes 5 When blowdown is complete the SteamCraft 10 can be restarted or the shut down procedure completed To restart the unit Power ON Automatic Fill on page 56 e To shut down the unit refer to Shut Down and Cleaning below Blowdown Frequency The supply water quality determines how often blowdown must be per formed The higher the feed water TDS and particulates the more frequently blowdown must be performed Refer to Table 2 2 Minimum Water Quality Requirements on page 11 If the local water supply meets the minimum supply water quality standards observe the following guidelines to establish proper blowdown scheduling and maintain warranty coverage e For units without a SteamerGard water treatment system blowdown must be performed after every 4 hours of operation and at the end of each shift as specified in the Shut Down and Cleaning procedure e For units with a SteamerGard water treatment s
217. rator gas valve piping In order to protect the automatic gas control valve from condensation the drip leg should be close to the SteamCraft 10 gas connection 5 If natural gas pressure exceeds 14 water column a pressure regulating valve must be installed in the gas supply plumbing to reduce the pressure to within the limits specified in Gas Supply Requirements on page 10 6 If LP gas is supplied use a gas pipe joint compound which is resistant to LP gas Refer to Figure 2 2 and note the pressure limit specified for LP gas The gas lines and bumer control connections should be inspected for proper installation and tested for leaks and proper operation e At Initial Installation e As part of regular maintenance procedures e As the first step in troubleshooting e After service or repair the components affected should be inspected and tested for leaks and proper operation Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 29 WARNING FIRE OR EXPLOSION HAZARD LEAKING GAS CAN CAUSE FIRE OR EXPLOSION WITH PROPERTY DAMAGE INJURY OR LOSS OF LIFE If the installer smells gas or suspects there is a gas leak immediately refer to the posted gas leak instructions The posted instructions are provided by the local gas supplier and supersede any other instructions Until the leak is stopped observe the following precautions in addition to the posted instructions e Do not light or st
218. rature Limit Switch Model 24 CEA 10 144 Terminal Block 145 CT 23 amp CT 24 Heater amp Dryer Elements Model 24 CEA 10 145 CT 25 Relay R 1 Model 24 CEA 10 147 Burner Ignition amp Control System Components Model 24 CGA 10 147 CHAPTER 7 ILLUSTRATED PARTS LISTS 149 INTRODUCTION 149 Parts Differences Among SteamCraft 10 Steamers 149 Electrical Schematics And Wiring Diagrams 149 Ordering Parts 149 CHAPTER 8 IGNITION MODULE 199 INTRODUCTION 199 HONEYWELL amp WHITE RODGERS MANUALS 199 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 1 Page 1 CHAPTER 1 PRODUCT IDENTIFICATION MODEL NUMBER SERIAL NUMBER PRODUCT INFORMATION PLATE Cleveland Range Inc assigns two product identification numbers to each SteamCraft 10 a model number and a serial number The model number identifies the product characteristics The serial number identifies the indi vidual unit The operating section of this manual Chapters 1 through 4 covers four models of the Steam Craft 10 steamers e Gas fired atmospheric generator 24 CGA 10 e Gas fired pressure generator 24 CGP 10 e Electric atmospheric generator 24 CEA 10 e Electric pressure generator 24 CEP 10 The service section of this manual Chapters 5 through 8 covers only the atmospheric models e Gas fired atmospheric generator 24 CGA 10 e Electric atmospheric generator 24 CEA 10 Each character of the
219. rcent shutoff and safety lockout A timer in these models starts timing the moment the trial for ignition starts Ignition spark continues only until the timed trial for ignition period ends Then the module goes into safety lockout Lockout de energizes the first main valve operator and closes the first main pilot valve in the gas control stopping pilot gas flow The control system must be reset by setting the thermostat below room temperature for one minute or by turning off power to the module for one minute Cleveland Range Inc 13 SteamCraft 10 Service Manual Chapter 8 Safety Shutoff with Continuous Retry S8600M The S8600M provides 100 percent gas shutoff followed by retry for ignition Operation on ignition failure is the same as lockout modules except that a timer starts timing immediately following shutoff Six minutes nom five minutes min after shutoff the module restarts the ignition sequence The ignition trial shutoff wait sequence continues until either the pilot lights or the thermostat is set below room temperature to end the call for heat The module can also be reset by setting down the thermostat for one minute MAIN BURNER OPERATION When the pilot flame is established a flame rectification circuit is completed between the sensor and burner ground The flame sensing circuit in the module detects the flame current shuts off the spark generator and energizes the second main valve operator The secon
220. re energized through the lower float L W C O switch and the high temperature limit switches when all are closed e For Model 24 CGA 10 the compartment steam valve the relays R1 upper and R2 lower and the condenser solenoid are in this circuit This model has only one steam generator and one float Therefore the lower float L W C O switch is part of burner control circuit not the compartment steaming circuit During shutdown the 3 minute timer controls the fill and rinse solenoids Setting the ON OFF switch to OFF starts the 3 minute timer and energizes timer terminals 2 3 During countdown the timer contacts close the blow down circuit components After 3 minutes the contacts of the timer open to remove power from the blowdown circuit The components in the blowdown circuit differ for each model e For Model 24 CEA 10 The 3 Minute Timer energizes the rinse valves to flush both float cylinders and relay R1 When the R1 contactors close both water fill valves open for blowdown of both steam generators e For Model 24 CGA 10 The 3 Minute Timer energizes the fill valve for steam generator blowdown and the rinse valve to flush the float cylinder Page 86 Float Assembly VENT LINE TO GENERATOR RINSE VALVE CONNECTION UPPER FLOAT CYLINDER LOWER FLOAT AND SWITCH WATER LINE TO STEAM GENERATOR Figure 5 17 Float Assembly Connections TO FILL SOLENOID Ti HIGH LEVEL SWITCH GE Normalty Closed
221. re heat thermal switch terminals continue this procedure with step 8 Set the ON OFF switch to the ON position Watch the meter reading as the SteamCraft 10 heats up and generates steam When the unit starts generating steam check the meter reading e If the meter reads 0 ohms across the switch terminals replace the pre heat thermal switch NOTE Model 24 CEA 10 units may steam for one or two minutes before the switch opens e If the meter reads high or infinite resistance the pre heat thermal switch is good Perform steps a through c below and end the procedure here a Set the ON OFF switch to the OFF position b Disconnect the ohmmeter leads from the thermal switch terminals c Connect the respective switch leads to the pre heat thermal switch terminals and replace the right side service panel In the following procedure replace the notation 115 120 VAC with the correct operating voltage for the SteamCraft 10 model being serviced e The correct operating voltage for 24 CEA 10 models is 120 VAC e The correct operating voltage for 24 CGA 10 models is 115 VAC 1 Set the voltmeter to the 250 VAC scale 2 Set the TIMED MANUAL switch to the TIMED position 3 Set the ON OFF switch to the ON position Zero and clear the timer 4 Refer to Figures 6 21 and 6 22 Check for 115 120 VAC from the TIMED MANUAL switch BRN ORG wire connection top terminal to the ON OFF switch WHT WHT wire connection bottom right terminal e If
222. rify that the main power switch is in the ON position b Check breakers or fuses in the main power switch e If the meter reads 230 VAC at the main power switch sufficient power is being supplied and the switch box is good CT 19 Transformer Model 24 CEA 10 CT 20 and CT 21 Heater Contactor Model 24 CEA 10 1 Set the voltmeter to the 250 VAC scale 2 Set the ON OFF switch to the ON position 3 Set the TIMED MANUAL switch to the MANUAL position and wait until the water in the float cylinder above the lower float switch 4 Refer to Figure 6 41 and check for 120 VAC across the heater contactor coil terminals e If the meter reads 120 VAC across the test points and the heaters are heating the heater contactor is good End this procedure here e If the meter reads 120 VAC across the test points and the heaters are not heating continue this procedure with step 5 e If the meter reads 0 VAC or a low voltage across the test points the fault is not in the heater contactor a Check the Yellow White Yellow brown and white brown wires connected to the heater contactor for continuity and secure connections Replace or repair faulty wiring and connections Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 143 CONTACT CONTACT TOP BOTTOM PARS V W contactor contactor YP P P PARE 230VAC Figure 6 41 Upper and Lower Compartment Contactors 24 CEA 10
223. ritical to the safety of personnel and equipment and must not be violated under any circumstances Do not connect the drain line into PVC pipe or any other drain material that cannot sustain 180 F Do not connect drains from any other equipment to the SteamCraft 10 Steamer drain line Do not connect the drain outlet extension line directly to a floor drain or sewer line 1 The drain lines must be installed in compliance with local state and national utility construction and sanitation codes the most prominent of which are listed in the Installation Policies section below 2 The floor drain receiving the hot condensate from the Steam Craft 10 must not be located under the body of the unit Steam rising from the drain up into the unit body will adversely affect operation cooling air ventilation and may cause corrosion on some of the electrical contacts Improper location of this drain will seriously reduce warranty coverage 3 The total length of pipe and number of bend fittings required to reach the open drain determines the pipe size used to extend the drain line to an open drain e If the drain outlet extension requires six feet or less of pipe and no more than two elbows are required use 1 5 inch pipe and fittings e If the drain outlet extension requires six to twelve feet of pipe or requires three or more elbows use 2 inch pipe and fittings 4 The drain line must have a gravity flow from the Steam Craft 10 Steamer dra
224. rk When the time is set the steam generator begins heating the water to steam Shortly steam fills the cooking compartment 4 When the dial points to zero a buzzer sounds for 3 seconds the generator stops steaming and steam flow to the cooking compartment gradually stops The cooking cycle is complete Manual Cooking Procedure Follow this procedure when cooking with the Steam Craft 10 in manual mode 1 Close the steamer door and start manual mode steaming by pressing the MANUAL bottom end of the TIMED MANUAL switch e The steam generator begins heating the water to steam e Steam fills the cooking compartment and begins cooking the food 2 If the timer is used as a conventional kitchen timer a Set the required cooking time by turning the timer dial clockwise until it points to the correct time mark b When the dial points to zero the cooking time is complete Remember in manual mode the timer does not stop the steaming func tions 3 To stop manual mode steaming press the TIMED top end of the TIMED MANUAL rocker switch and turn the timer dial to the 0 mark The controls will now be set so e The ON OFF switch is in the ON top position e The TIMED MANUAL switch is in the TIMED top position e The timer dial points to 0 The generator stops steaming and steam flow to the cooking compart ment gradually stops WARNING SEVERE BURNS may result from exposure to steam Do not open the steamer door before steam fl
225. rol Valves Measuring Resistance Through The Solenoid Jammed or Blocked Valves Thermostatic Snap Switches Heater Element Resistance Measurements Insulation Resistance Measurements Voltage Measurements INITIAL TEST PROCEDURE INTRODUCTION Test Procedures Layout and Conventions INITIAL TEST PROCEDURE GENERAL PREPARATIONS Model Numbers and Test Procedure Variations INITIAL TEST PROCEDURE MODEL 24 CGA 10 Set Up the Initial Test Conditions COMPONENT TEST PROCEDURES Initial Conditions for All Testing CT 1 Drain 8 Way Solenoid Valves CT 2 3 Minute Timer CT 3 Rinse Solenoid Valves CT 4 Water Fill Solenoid Valves CT 5 ON OFF Switch CT 6 Float Assembly CT 7 Gas Control Transformer 24 Volt Model 24 CGA 10 CT 8 Preheat Thermostat Steam Generator CT 9 TIMED MANUAL Switch CT 10 Condenser Solenoid Valves CT 11 Steam Relief Solenoid Valve Model 24 CGA 10 CT 12 Compartment Steam Solenoid Valve Model 24 CGA 10 CT 13 Mechanical Timer CT 14 amp CT 15 3 Second Timer And Buzzer Mechanical Timer Units Only CT 16 Electronic Timer Transformer 24 Volt CT 17 Electronic Key Pad Timer CT 18 Compartment Thermostat Key Pad Timer Units Only CT 19 Transformer Model 24 CEA 10 CT 20 amp CT 21 Heater Contactor Model 24 CEA 10 Cleveland Range Inc SteamCraft 10 Service Manual Page v Printed 3 93 Steam Craft 10 Service Manual Models 24 CGA 10 and 24 CEA 10 Table of Contents continued Chapter Page CT 22 High Tempe
226. s 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 107 PHASE4 TESTING This phase of testing pertains to the components associated with timer controlled steaming functions After completing Phase 3 Testing verify that the following conditions are set to start Phase 4 testing e The right side and front access panels are removed and the float assembly relays and contractors are clearly visible e The Main Disconnect Switch is in the ON position and the 3 minute blowdown cycle has stopped e The ON OFF power switch is in the ON position e Both upper and lower compartment TIMED MANUAL switches are in the TIMED position e Both upper and lower compartment timers are set for zero minutes e The water in the steam generator is at pre heat temperature To quickly lower the generator water temperature run a partial blowdown cycle as described at the end of Phase 3 For units with Mechanical Dial Timers start this procedure with IT 4 1 For units with Electronic Key Pad Timers start this procedure with IT 4 6 MECHANICAL DIAL TIMER TEST SEQUENCE IT 4 1 Simultaneously start a stopwatch and turn the timer dial of the upper control panel to the 5 minute setting NOTE In TIMED mode setting a cooking time for either compartment activates the steam valve the condenser valve and the burner relay R1 or R2 for that compartment IT 4 2 Does the burner fan motor start when the dial timer starts its countdown
227. s an audible signal to indicate completion of a timed steaming cycle With power applied across terminals 2 and 3 see Figure 5 20 the 3 second timer contact closes This allows power flow through terminals 1 and 2 to the buzzer After 3 seconds the 3 second timer contact opens and silences the buzzer The buzzer also sounds at the end of MANUAL steaming when the operator sets the TIMED MANUAL switch to TIMED Two heater assemblies in each generator are located inside the generator near the bottom Each assembly comes as a three coil element In this text heater element refers to the complete heater assembly Heater coil refers to each of the three coils in the assembly For proper operation of the SteamCraft 10 the rating of the heater element must match the external supply voltage The heater coils connected in a delta configuration provide 8 kW heating power Each heater coil supplies one third of this power 2 67 kW Table 6 1 lists electrical characteristics of elements supplied for various voltages The 300 W dryer element mounts inside the generator near the top The dryer element eliminates any droplet carryover as the steam exits the generator Carryover of small water droplets results in improper cooking and soggy food Optimum steam convection cooking demands dry steam with no carryover Carryover also erodes and enlarges the nozzle holes When needed use 300 watt elements listed in Table 6 2 as replacements The high temperature
228. s and examples refer to step 5 of the Timed Mode Operating Procedure c Press the START STOP key to start the timer count down When the timer reaches zero a buzzer sounds continuously d Press the START STOP key to silence the buzzer Remember in manual mode the timer does not control the steaming functions 6 To stop manual mode steaming press the TIMED top end of the TIMED MANUAL rocker switch Press and hold the CLEAR key to zero the timer 00 00 The controls will now be set so e The ON OFF switch is in the ON top position The TIMED MANUAL switch is in the TIMED top position e The timer is set to 00 00 The generator stops steaming and steam flow to the cooking compartment gradually stops Blowdown occurs automatically when the unit is turned off at the ON OFF switch During blowdown the steam generator and float control are rinsed with fresh water flushing deposits from the heating elements and generator bottom Blowdown at frequent intervals helps decrease mineral buildup in the steam generator and reduces the frequency of descaling and other maintenance Blowdown Frequency The supply water quality determines how often blowdown must be performed The higher the feed water TDS and particulates the more frequently blowdown must be performed Refer to Table 2 2 Minimum Water Quality Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 53 Shut Down and Cleaning
229. s lost all models restart ignition trial PLANNING THE INSTALLATION Intermittent pilot systems are used on a wide variety of central heating equipment and on heating appliances such as commercial cookers agricultural equipment industrial heating equipment and pool heaters Some of these applications may make heavy demands on the controls either because of frequent cycling or because of moisture corrosive chemicals dust or excessive heat in the environment In these situations special steps may be required to prevent nuisance shutdowns and premature control failure These applications require Honeywell Residential Division Engineering review contact your Honeywell Sales Representative for assistance FREQUENT CYCLING These controls are designed for use on space heating appliances that typically cycle 3 to 4 times an hour during the heating season and not at all during the cooling season In an application with significantly greater cycling rates and closer to year round use we recommend monthly checkout because the controls may wear out more quickly WATER OR STEAM CLEANING Once a module or gas control has been wet it may operate unreliably and must be replaced If the appliance is J A 11 89 Printed 3 93 LOCKOUT TIMING IGNITION SEQUENCE No continuous retry Spark and pilot gas on until shutoff After 5 min min 6 min nom delay ignition starts again Ignition wait retry repeats until pilot
230. side access panel on the Steam Craft 10 8 Leave the electrical power OFF at both the main disconnect switch and the control panel ON OFF switch 9 The SteamCraft 10 is now ready for operational testing e If this test is part of initial installation perform the Burner Ignition Test before performing the Operating Tests e If this is part of comp onent repair perform the Burner Ignition Tests next If the unit passes it is ready to resume normal cooking operations WARNING DO NOT TRY TO LIGHT THE BURNERS OR PILOT WITH A FLAME The SteamCraft 10 has an electronic ignition system which automatically lights the pilot and burn ers senses the flame and controls gas flow This provides precise burner control safety ignition and shutdown features DEATH INJURY OR EQUIPMENT DAMAGE may result from an improperly adjusted gas control and ignition system Do not alter any adjustments on this electronic control or solenoid valve If adjustment is required contact an authorized service center Cleveland Range is in no way responsible for the operation or safety of this equipment if the controller valve or igniter probes are adjusted by anyone other than a Cleveland Range authorized service representative Burner Ignition Test Gas Fired Models Only This is a functional test of the intermittent pilot ignition system Pilot burner ignition is completely automatic The test consists of starting the unit and setting the controls for gen
231. sly The blow down cycle is explained on page 81 Steaming Functions For Model 24 CGA 10 Printed 3 93 The steaming cycle heats water in the steam generator to steaming tempera ture above 217 F and fills the cooking compartments with steam The steaming cycle operates simultaneously with the water fill cycle to maintain a continuous flow of cooking steam Refer to Figure 5 6 One steam generator supplies steam to either or both cooking compartments Although both cooking compartments draw steam from the same generator each compartment operates independently during the steaming cycle The Compartment Steam and Steam Relief Valves direct steam flow to either or both cooking compartments Refer to Figure 5 7 The steam generator starts a steaming cycle when the TIMED MANUAL switch of either control panel is set to MANUAL or when a cooking time is set in TIMED mode on either control panel In the following description the lower compartment is set for manual operation and the upper for timed operation Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 UPPER STEAM TUBE STEAM GENERATOR CONNECTIONS A E LOWER STEAM TUBE af Le Figure 5 7 Steam Flow Control Components 24 CGA 10 UPPER COMPARTMENT STEAM VALVE Normally Closed II LOWER COMPARTMENT e Normally Closed STEAM RELIEF VALVE Normally Open SteamCraft 10 Service Manual Chapter 5 Page 77 A When the ON OF
232. switch to the ON position Set the TIMED MANUAL switch to the MANUAL position Refer to Figures 6 31 6 32 6 33 and 6 44 and connect the voltmeter leads across timer terminals 1 3 LOAD 5 Set the TIMED MANUAL switch to TIMED and check for 115 120 VAC across timer terminals 1 3 LOAD e U N e e Ifthe meter reads 115 120 VAC across the test points continue this procedure with step 7 e Ifthe meter does not read 115 120 VAC across the test points continue this procedure with step 6 6 Refer to Figures 6 31 6 32 6 33 and 6 44 and connect the voltmeter leads across timer terminals 2 3 INPUT Check for 115 120 VAC across the test points e Ifthe meter reads 115 120 VAC across the test points replace the 3 second Figure 6 31 3 Second Timer and Buzzer timer Upper Compartment 24 CEA 10 Cleveland Range Inc Printed 3 93 Page 138 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 Figure 6 32 3 Second Timer and Buzzer Figure 6 33 3 Second Timer and Buzzer Lower Compartment 24 CEA 10 Upper Compartment 24 CGA 10 e If the meter does not read 115 120 VAC across the test points check the continuity and secure connections of the power lead to the 3 second timer and the wire from the 3 second timer to the dial timer Replace or repair faulty wiring and connections 7 Check the meter readings and buzzer as the 3 second timer counts down e If after 3 seconds the 115 120 VAC mete
233. t Gasket Burner Mount Gasket Boiler Mount VD oo 9 Dn FP WH WN Gasket Heater Blockoff Plate Plate Blockoff Elbow Street 90 3 4 Brass Fitting Hose Barb 3 4 Tube x 3 4 MPT Switch Thermal Disk SPDT 185 Baffle Assembly Combustion Valve Pressure Relief Pop Up 1 2 MPT Plug Hex Head 1 2 MPT Brass Nut Hex 1 4 20 S S Washer Split Lock 1 4 S S Washer Flat 1 4 S S Screw Hex Head 1 4 20 x 625 S S Screw Torx Slot 8 32 x 5 Nut Hex Elastic Lock 6 32 Baffle Air Pilot 125 000 BTU Gas Cleveland Range Inc Printed 3 93 Page 172 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 10A Float Assembly Model 24 CEA 10 Cleveland Range Inc Printed 3 93 Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 173 1058431600 Hose 1 4 ID x 1 2 OD x 16 Long 104383 Clamp Nylon 1 2 OD Hose 104380 Fitting Hose Barb 1 4H x 1 8 MPT 105787 Fitting Hose Barb 90 1 4 H x 1 8 MPT 104039 Cap Float Top 104040 Cap Float Bottom 104276 Screw Hex Hd 1 4 20 x 5 5 S S 14618 Nut Hex 1 4 20 S S 23105 Washer Split Lock 1 4 S S 104041 Gasket Float Assembly 2 3 4 5 6 7 8 9 re Oo 103726 Switch Assembly Float 1040190388 Tube Polysulfone 2 x 1 25 x 3 875 05231 Elbow Street 3 4 x 90 Brass ko e e A U N 14352 Nipple 3 4x4 Long Brass 21304 Union 3 4 Brass ko Nn Cleveland Range Inc Pri
234. t 10 Service Manual Chapter 5 Page 75 Steaming Functions For Model 24 CEA 10 UPPER COOKING COMPARTMENT UPPER STEAM PIPES STEAM GENERATOR FLOAT ASSEMBLY LOWER STEAM GENERATOR LOWER STEAM PIPES LOWER COOKING COMPARTMENT Figure 5 4 Double Steam Generators 24 CEA 10 NOTES L The normally open Lower Float L W C 0 Switch Is closed by water above the low water limit 2 The normally open Preheat Thermostat is closed by water temperature above 185 F Cleveland Range Inc The steaming cycle heats water in the steam generator to steaming temperature above 217 F and fills the cooking compartment with steam The steaming cycle operates simultaneously with the water fill cycle to maintain a continuous flow of cooking steam A separate steam generator supplies steam to each cooking compartment Figure 5 4 A When the ON OFF switch is first set to ON the water fill and preheat cycles start for both the upper and lower steam generators These cycles operate for each generator as described on pages 72 and 74 B The upper steam generator starts a steaming cycle when its TIMED MANUAL switch is set to MANUAL or a cooking time is set in TIMED mode For this example the upper TIMED MANUAL switch is set to MANUAL While the upper steam generator starts its steaming cycle the lower generator continues its preheat cycle Refer to Figure 5 5 1 The MANUAL setting by passes the Preheat Ther
235. t Procedures 1 Verify that electrical power to the SteamCraft 10 is turned OFF at the panel ON OFF switch and turned ON at the main dis connect switch 2 Set both upper and lower compartment TIMED MANUAL switches to the TIMED position 3 Set both upper and lower compartment timers to zero minutes e For Key Pad Control Panels The timer display is blank while the ON OFF switch is set to OFF If the timer is not zeroed 00 00 when power is turned on in step 4 press and hold the CLEAR key on the key pad control panel until the timer is zeroed For Dial Timer Control Panels If the Timer is not zeroed turn the dial counter clockwise until it points to the 0 mark 4 Set the ON OFF switch to the ON position As the steam generator fills with water observe the following functions a The red ON OFF switch light turns on The fill valve opens and water begins to fill the steam generator b After a few minutes water appears in the bottom of the float cylinders as the water level in the steam generator rises e Check that no water flows from the drain opening e Check for plumbing leaks 5 When the water in the steam generator reaches a safe operating level approximately one inch from the bottom of the float cylinder Page 36 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 10 e For Atmospheric Models 24 CEA 10 and 24 CGA 10 the preheat cycle starts The steam generator he
236. t the door gasket assembly and slide racks for proper installation and cleanliness 6 Allow only ClevelandRange authorized service representatives to service the SteamCraft 10 7 Use only factory authorized repair parts This will maintain Underwriters Laboratories UL and or Canadian Standards Association CSA certification and all approvals to protect warranty coverage Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 43 BURNER LIGHTING GAS LEAK INSTRUCTIONS OPERATING MODES Manual Operation Timed Operation Manual Timer DO NOT TRY TO LIGHT THE BURNERS OR PILOT WITH A FLAME THE PILOT AND BURNERS ARE SELF IGNITING The SteamCraft 10 has an electronic ignition system which automatically lights the pilot and burners senses the flame and controls gas flow This provides precise burner control safety ignition and shutdown features WARNING DEATH INJURY OR EQUIPMENT DAMAGE may result from an improperly adjusted gas control and ignition system Do not alter any adjustments on this electronic control or solenoid valve If adjustment is required contact an authorized service center Cleveland Range is in no way responsible for the operation or safety of this equipment if the controller valve or igniter probes are adjusted by anyone other than a Cleveland Range authorized service representative If the operator smells gas or suspects there is a gas leak he should immedi
237. teamCraft 10 Service Manual Chapter 7 Page 157 Figure 7 4 Compartment Door And Hinge Assemblies COMPARTMENT DOOR ASSEMBLIES Door Outer Assembly Door Outer Weldment Assembly Bushing Door Hinge Spring Door Rivet 1 8 Diameter Flush Break S S Latch Door Paddle Type Nut Acorn 10 24 S S Washer Flat 10 S S Door Inner Assembly Plate Gasket Retainer ON Oa A O N Plate Inner Gasket Retainer Gasket Door Door Weldment Inner Nut Hex Lock Elastic 1 4 20 S S Stud Door Mounting Inner Screw Carriage S S 1 4 20 x 1 CATCH ASSEMBLY Catch Door Nut Door Catch Mounting S S Nut Hex 1 2 13 Washer Nylon Type 6 6 HINGE ASSEMBLIES Hinge Assembly Weld Upper Hinge Assembly Weld Bottom Screw 1 4 20 x 625 Hex Hd S S Washer Split Lock 1 4 S S Washer Plat 1 4 S S Ring Snap S S Pin Hinge OO M OO b ch aes 3 RPA RPO YM A Cleveland Range Inc Printed 3 93 Page 158 SteamCraft 10 Service Manual Chapter 7 Models 24 CEA 10 and 24 CGA 10 Figure 7 5 Electronic Timer Control Panel Assembly Printed 3 93 Cleveland Range Inc Models 24 CEA 10 and 24 CGA 10 SteamCraft 10 Service Manual Chapter 7 Page 159 Figure 7 5 Electronic Timer Control Panel Assembly 105736 Control Panel with Studs Electronic Timer 105720 Label Control Panel Electronic 104389 Time Assembly Compensating 101655 Washer Flat 10 S S 14692 Nut Hex 10 24 Elastic Lock 104390 Transformer Assemb
238. ted and the terminal burns High current connections such as at the terminal block and contactor terminals are particularly susceptible to damage when loose Using wire that is too small in diameter also yields the same results Be sure that any wiring meets the amperage requirements of the circuit All connections should have no resistance and measure 0 VAC across them Any voltage leading greater Than 0 VAC across a connection indicates a faulty connection and must be corrected The SteamCraft 10 uses some pressure type connections Be sure to tighten screw and nut connections securely and that threads are not cross threaded Special care must be used to secure the high voltage contactor connections If loose these high current connections will burn and cause extensive damage Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 Solenoid Valves Cleveland Range Inc SteamCraft 10 Service Manual Chapter 6 Page 93 Solenoid valves in the SteamCraft 10 control the flow of water steam and drainage In addition the Model 24 CGA 10 units have automatic gas valves with solenoid actuators The Component Test Procedures detail testing each of these solenoid valves This section provides general and reference information about these valves General Considerations When testing or replacing a solenoid valve check the valve for correct flow direction Markings on the valve body indicate IN for the inlet OUT for the outlet or both
239. ted in Table 2 2 The supply must provide a minimum dynamic pressure of 35 psi 2 4 kg cm and a maximum static pressure of 60 psi 4 1 kg cm Refer to page 24 for detailed pressure and fitting requirements and recommended plumbing layouts e Always connect a cold water supply to the SteamCraft 10 water supply lines DO NOT USE HOT WATER The SteamCraft 10 will not function properly or within design safety limits if hot or warm water is supplied to the condenser water connection e If analysis shows that the supply water is within the required limits a single line water system can be installed A single water line system is illustrated in Figure 2 10 on page 25 e If analysis shows that the supply water is NOT within the required limits install a SteamerGard water treatment system Figure 2 11 on page 25 illustrates a treated water supply arrangement e If analysis shows that the supply water is NOT within the required limits and it is NOT possible to install a SteamerGard water treatment system plan on increasing the frequency of maintenance cleaning and descaling beyond that recommended in the maintenance schedule Chapter 4 Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Selecting The Operating Location For safe and efficient operation observe the following criteria when selecting an operating location for the Steam Craft 10 Steamer 1 Do not install these units in areas where co
240. the ON OFF switch to the ON position Watch the meter readings as the SteamCraft 10 heats up and generates steam e If the meter reads 0 ohms across the switch terminals after 10 minutes the compartment thermal switch is good Perform steps a through c below and end the procedure here a Set the ON OFF switch to the OFF position b Disconnect the ohmmeter leads from the thermal switch terminals c Re connect the wire leads to the thermal switch terminals Printed 3 93 Page 142 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 1 Check that the main power switch is in the ON Position SECONDARY 2 Set the voltmeter to the 250 VAC scale 3 Refer to Figure 6 40 and check for 115 120 VAC across transformer secondary terminals X1 X2 e If the meter reads 115 120 VAC the transformer is good End this procedure here e If the meter reads no or low voltage across terminals X1 X2 continue this procedure with step 4 4 Set the voltmeter to the 500 VAC scale Check for 230 VAC across the transformer primary terminals H1 H4 e If the reading is 230 VAC across terminals H1 H4 end this procedure Figure 6 40 Transformer 24 CEA 10 bere e If the meter does not read 230 VAC check for open wires and loose connections at and between the main power switch the terminal block and the transformer 6 Check power at main power switch e If the meter does not read 230 VAC at the main power switch a Ve
241. the past adversely affected warranty coverage The owner user of a SteamCraft 10 should pay particular attention to these factors to protect his warranty coverage This table is not a comprehensive list of the owner user s responsibilities Cleveland Range steam products are intended for use only by professionally trained personnel To meet his responsibilities the owner user must supplement this guide with any additional actions consistent with the operation of steam generating food preparation equipment by a trained professional Warranty Protection Table SUBJECT PAGE REFERENCE Electrical Power Requirements amp Line Voltage 10 Water Quality Requirements amp Analysis 11 Water Pressure 16 Vented Drain 20 Level Operation 19 Blowdown Frequency 55 amp 63 Steam Generator Maintenance amp Maintenance Records 67 Descaling Frequency amp Procedure 68 Approved Chemical Cleaners 68 Authorized Maintenance amp Repair 74 SteamerGard Water Treatment System A SteamerGard water treatment system protects the SteamCraft 10 from impurities contained in regular lap water especially Total Dissolved Solids TDS which cause lime and scale deposits in steamer equipment The protection is so effective that Cleveland Range increases toe warranty coverage ona Steam Craft 10 installed in conjunction with a SteamerGard system to five years for parts and three years for labor on water related components elements valves generators piping etc However ev
242. the right side access panel so the upper and lower float assemblies are clearly visible Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 35 Blowdown Inspection Procedure 1 The TIMED MANUAL switch and TIMER settings are not significant while the ON OFF switch is in the OFF position 2 With the panel ON OFF switch turned OFF turn on electric power to the SteamCraft 10 at the main disconnect switch The steamer will immediately start an automatic 3 minute blowdown cycle During the automatic blowdown cycle the condenser and drain valves are fully open while the steam generator and float assembly are flushed with fresh water 3 Stop the blowdown cycle before it is complete by setting the ON OFF switch to the ON position This energizes the operating control circuits the red ON OFF indicator lights blowdown stops and the steam generator fills with water 4 Restart the blowdown cycle by setting the ON OFF switch to the OFF position Observe the following functions a Look at the top of the float control There should be a steady flow of water entering the top of the float chamber through the spray nozzle b Look at the one inch vent gap between the steamer drain pipe and the floor drain A steady stream of water should be draining from the steamer c After about 3 minutes the cycle is complete Check the two points listed above there should be no water flow at either point Operating Tes
243. the rinse solenoid valve Refer to 3 minute timer text on page 85 During steaming operations sediment collects in the float cylinder Sediment buildup in the cylinder impedes smooth operation of the floats as the water level rises and falls The rinse flow flushes sediment that collects during operation from the cylinder Without this rinse sticky float operation will cause improper water levels heater burnout and other malfunctions and damage Drain Solenoid Valves The drain solenoid valve controls water flow from the steam generator to the drain fitting at the bottom of the unit Model 24 CGA 10 gas fired units have one drain valve Model 24 CEA 10 electric heater units have two drain valves one for each generator Operation of this valve is detailed on page 81 S The fill solenoid valve controls water flow into the steam generator The valve Water Fill Solenoid Valves opens and closes as the water level fluctuates in the float cylinder and generator During steaming operations the fill valve cycles approximately two to five times each minute e While the water level in the float cylinder is below the upper limit the high level float switch is closed This energizes the solenoid which opens the valve e When the water level in the float cylinder reaches the upper limit the high level float switch opens This deenergizes the solenoid which closes the valve e During the blowdown cycle the 3 minute timer energizes the solenoid ope
244. the steam generator b Set the ON OFF switch back to the ON position This will replace the drained hot water with cool water 3 Perform Phase 4 electronic timer testing using the lower compartment control panel Phase 4 testing is complete for units with Electronic Key Pad Timer Control Panels Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 COMPONENT TEST PROCEDURES Figure 6 5 Drain Solenoid Valves 24 CEA 10 CT 1 Drain 3 Way Solenoid Valves Figure 6 6 Drain Solenoid Valves 24 CGA 10 Cleveland Range Inc SteamCraft 10 Service Manual Chapter 6 Page 123 The following procedures are detailed tests to determine whether or nor specific SteamCraft 10 components are operable Although these tests can be performed independently the Initial Test Procedures should be performed to first identify the most probable causes of trouble This systematic approach avoids random unnecessary component testing Initial conditions for all testing The right side and from access panel are removed and the float assembly relays and contactors are clearly visible The Main Disconnect Switch is in the ON position and the 3 minute blowdown cycle has stopped The ON OFF power switch is in the ON position Both upper and lower compartment TIMED MANUAL switches are in the TIMED position Both upper and lower compartment timers are set for zero minutes a For Key Pad Control Panels The timer display is
245. the text in which they are first referenced However the Electrical Schematics and Wiring Diagrams are included with the other service drawings in Chapter 7 These electrical drawings are Figures 7 16 through 7 23 Nominal Voltage References The SteamCraft 10 models covered in this chapter can match a variety of electrical supply voltages To determine the supply voltage characteristics of the SteamCraft 10 being serviced refer to the Product Identification Plate as described in Chapter 1 As shown on the schematic and wiring drawings the internal operating and control voltages vary among the models To simplify voltage references the text of this chapter uses the following nominal voltages and conventions 230 VAC or High Voltage These terms refer to the characteristics of the voltage coming into the unit at the two or three pin terminal block Always check the Product ID Plate to verify the actual voltage of the unit being tested i e 208 VAC 460 VAC etc 115 120 VAC or Operating Voltage These terms refer to the characteristics of the main operating circuit voltage Verify the operating Cleveland Range Inc Printed 3 93 Page 92 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 voltage for the unit being tested by referring to the schematic diagram mounted on the unit or the one included in Chapter 7 e 24 VAC or Control Voltage These terms refer to the characteristics of control or electronic module c
246. the unit is turned off e For Model 24 CEA 10 Only the normally closed preheat side of the switch is used and the switch functions as described above e For Model 24 CGA 10 Born sides of the switch are used The normally closed side functions as described above The normally open side is connected to the relay R3 which controls fan motor operation and steam relief valve operation with rely R4 The timer controls power to the compartment steaming circuit during timed operation the TIMED MANUAL switch in the TIMED position In timed mode the timer starts and stops the Steam Craft 10 steaming cycle automat ically The timer circuit is slightly different for electronic key pad timers and dial timers Electronic Key Pad Timer Operating the electronic key pad timer is explained in Chapter 3 After setting the steaming time and pressing the START STOP key the steaming cycle starts 1 Contacts in the timer close to energize the compartment steaming circuit 2 While the cooking compartment temperature is lower than 190 F the timer pause circuit delays the countdown PAUS and the set time alternately display on the panel 3 When the cooking compartment temperature rises above 190 F the compartment thermal switch closes and the timer begins to count down as indicated on the panel display 4 When the timer counts down to 00 00 timer contacts open to de energize the heater contactor and condenser solenoid The panel buzzer sounds t
247. timer testing using the lower compartment control panel Phase 4 testing is complete for Units with Mechanical Dial Timer Control Panels ELECTRONIC KEY PAD TIMER TEST SEQUENCE IT 4 6 Does the control panel digital display light when the TIMED MANUAL switch is set to the TIMED position YES NO ome Failure of the electronic timer or its power transformer will prevent the digital display from lighting 1 Check the timer transformer according to component test CT 16 2 Check the electronic timer module according to component test CT 17 Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 121 Open the cooking compartment door for a few minutes to cool the compartment NOTE The compartment should be below cooking temperature to start testing Set the timer of the upper control panel for 5 minutes and press the START STOP key NOTE After the cooking time is set and the START STOP Key is pressed the compartment thermostat switch prevents timer countdown until the compartment reaches cooking temperature This switch is normally open closes at cooking temperature and reopens when the compartment drops below cooking temperature IT 4 7 Does the timer begin to count down after the cooking compartment reaches cooking temperature YES NO Failure of the compartment thermostat or the electronic timer will prevent timer countdown 1 Check the compartment thermostat swit
248. tment implosion can be caused by a blocked drain or drain screen Inspect and clean the drain and drain screen before each use Page 52 Chapter 3 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Power OFF Automatic Blowdown Follow this procedure when cooking with the SteamCraft 10 in manual mode 1 2 Refer to Inspect the Cooking Compartment on page 47 Inspect and clean the drain and cooking compartment as required In manual mode the operator can bring the compartment to cooking temperature by either preheating or increasing the cooking time If the operator chooses to preheat the cooking compartment manually refer to page 48 Preheat the Cooking Compartments If the unit has not been turned on press the top end of the ON OFF Switch 4 Close the steamer door Select the manual mode by pressing the MANUAL bottom end of the TIMED MANUAL rocker switch The steaming cycle starts as soon as the switch is pressed e The steam generator begins heating the water to steam e Steam fills the cooking compartment and begins cooking the food 5 If the timer is used to manually monitor how long the compartment is at cooking temperature clear set and start the timer a Press and hold the CLEAR key to zero the timer display b Set the cooking time using the number keys For example set the timer to 10 minutes and 30 seconds by pressing the 1 03 0 number keys in sequence For more detail
249. tment s 8 Power Off Automatic Blowdown 9 At end of each day or shift shut down and clean the Steam Craft 10 When the SteamCraft 10 is turned on it automatically fills the steam generator with water Use this procedure at the beginning of a shift to prepare the steamer for operation without starting steam generation When ready to start steam cooking begin either the Timed or Manual Operating Procedure 1 Check the control panel settings If necessary refer to the control panel summary on page 55 and change the settings so The ON OFF switch is in the OFF bottom position e The TIMED MANUAL switch is in the TIMED top position e The timer dial points to 0 2 If the timer is not zeroed 0 turn the dial counterclockwise until it points to 0 3 Press the ON top end of the ON OFF switch to energize the SteamCraft 10 The red indicator on the switch lights a buzzer sounds for 3 seconds and water fills the steam generator When the generator is full the SteamCraft 10 automatically stops water flow Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Start The Steam Supply Inspect the Cooking Compartment Figure 3 8 Compartment Drain Screen Preheat the Cooking Compartment s SteamCraft 10 Service Manual Chapter 3 Page 57 On pressure units press the Steam switch to heat the water in the generator In atmospheric units the water is automatically heated after filling when the ON OFF switch is turn
250. tors Set Up The Initial Test Conditions Cleveland Range Inc A separate steam generator supplies steam to each cooking compartment The upper and lower generators operate simultaneously during some functions and separately during others Examine the upper and lower component groups simultaneously or separately according to the instructions at the beginning of each phase of testing WARNING Death severe electrical shock or equipment damage can result from touching any component inside the unit when the main disconnect switch is in the on position Use extreme caution during testing with an access cover removed 1 Turn off the control panel ON OFF power switch 2 Turn off the Main Disconnect Switch 3 Make sure water is supplied to the unit and is on 4 Remove the right side and front access panels The float assemblies relays and contactors should be clearly visible Printed 3 93 Page 112 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 PHASE 1 TESTING This phase of testing pertains to components associated with the water fill drain and blowdown functions The panel ON OFF switch is OFF through out this phase The TIMED MANUAL switch and TIMER settings arc not significant while the ON OFF switch is in the OFF position Simultaneous Testing Examine the components of the upper and lower compartment and steam generator groups simultaneously during Phase 1 IT 1 1 Is there water standing i
251. trol pilot and burner ignition Failure of any of the four components listed below can prevent burner ignition during the preheat cycle e Air Prover Pressure Switch e Burner Control Module e Pilot Spark Igniter e Gas Control Valve To test these components refer to the Honeywell and White Rogers manuals in Chapter 8 IT 2 5 Do the fan and burners shut off when the pre heat thermostat opens NOTE When the water in the steam generator approaches steam tempera ture the pre heat thermostat opens at 185 This deenergizes relay R3 YES NO and cuts power to the fan motor As air flow through combustion chamber stops the Air Prover Pressure Switch opens cutting power to the Burner Control Module The gas burners shut off Failure of any of three components can prevent the preheat shutdown of the gas burners 1 Check the preheat thermostat according to component test CT 8 2 Check the relay R3 according to the relay testing instructions in Compo nent Testing Fundamentals 3 Check the Air Prover Pressure Switch according to the manuals in Chapter 8 Phase 2 testing is complete Proceed to Phase 3 testing Cleveland Range Inc Printed 3 93 Page 104 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 PHASE3 TESTING This phase of testing pertains to the components associated with manual controlled steaming functions After completing Phase 2 Testing verify that the following conditions are set
252. trols operation of the heater components through the Preheat Thermostat and the heater contactor This switch is normally open and remains open until the float water level is approximately one inch from the bottom of the float cylinder safe operating level Three possible malfunctions could prevent the contactor from activating The Preheat thermostat is malfunctioning The LWCO switch is malfunctioning The high limit switch assembly is malfunctioning 1 Check the Preheat Thermostat according to component test CT 8 2 Check the lower float switch according to component test CT 6 3 Check the high limit switch assembly according to component test CT 22 IT 2 4 Does the compartment heat to near steaming temperature YES NO emm 1 Check the heater element assembly according to component test CT 23 Vv 17 2 5 Does the heater contactor open when the pre heat thermostat opens YES NO NOTE When the water in the steam generator approaches steam tempera ture the pre heat thermostat opens at 185 This de energizes the condenser valve and the heater contactor The heater shuts off Check the preheat thermostat according to component test CT 8 Phase 2 testing is complete Proceed to Phase 3 testing NOTE If the components of the upper and lower compartment and steam generator groups were not examined simultaneously during Phase 2 repeat the tests for the components not yet tested Printed 3 93 Cleveland Range Inc
253. understanding of the local state and national utility construction and sanitation codes the most prominent of which are listed in the Installation Policies section below Before starting installation the owner and the installer should read through this chapter and thoroughly understand and agree upon e The installation policies of Cleveland Range Inc as stated in Installation Policies e An installation plan based on the Installation Overview and Installation Check List e Responsibility for feed water quality and its testing as described in Preparation For Installation Water Quality Requirements INSTALLATION POLICIES Cleveland Range Inc The SteamCraft 10 must be installed by qualified plumbing and electrical personnel working to all applicable national and local codes e Inthe U S A equipment installation must comply with the Basic Plumbing Code of the Building Officials and Code Administrators International Inc BOCA the National Fuel Gas Code ANSI Z223 1 latest edition the National Electric Code ANSI NFPA No 70 latest edition and the Food Service Sanitation Manual of the Food and Drug Administration FDA e In Canada equipment installation must comply with the CAN CGA B 149 Installation Code the Canadian Electrical Code CSA C22 1and any other applicable national and local codes Printed 3 93 rrevious rage Page 8 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10
254. unexpected shutdown would be high the system should be checked more often e Dusty wet or corrosive environment Since these environments can cause the controls to deteriorate more rapidly the system should be checked more often Any control should be replaced if it does not perform properly on checkout or troubleshooting In addition re place any module if it is wet or looks like it has ever been wet Protective enclosures as outlined under Planning the Installation are recommended regardless of checkout fre quency MOUNT IGNITION MODULE Select a location close enough to the burner to allow a short 3 ft 0 9 m max direct cable route to the igniter Ambient temperature at the module must be within the range listed under APPLICATION page 1 The module must be protected from water moisture corrosive chemi cals and excessive dust and grease WARNING Printed 3 93 202 Printed 3 93 SteamCraft 10 Service Manual Chapter 8 We recommend mounting the module with the terminals down to protect them from dripping water and dust Itcan also be mounted with the terminals on either side DO NOT MOUNT with terminals pointing up Fasten securely with tool No 6 32 machine or No 8 sheetmetal screws MOUNT THE SYSTEM CONTROLS Mount any required controls such as the gas control spark igniter flame sensor thermostat limit and transformer according to manufacturer s instructions WIRE THE SYSTEM CAUTION 1
255. upper and lower compartment TIMED MANUAL switches are in the TIMED position e Both upper and lower compartment timers are set for zero minutes a For Key Pad Control Panels The timer display is blank while the ON OFF switch is set to OFF If the timer is not zeroed 00 00 when power is turned on press and hold the CLEAR key on the key pad control panel until the timer is zeroed b For Dial Tuner Control Panels Turn the dial counter clockwise until it points to the 0 mark Simultaneous Testing Examine the components of the upper and lower compartment and steam generator groups simultaneously during Phase 2 Set the ON OFF switch to the ON position NOTE The red ON OFF switch light turns on The fill valve opens and the drain valve closes Water begins to fill the steam generator After a few minutes water appears in the bottom of the float cylinder as the water level in the steam generator rises IT 2 1 Does the red ON OFF switch indicator light YES NO Test the ON OFF switch according to component test CT 5 IT 2 2 Does water start filling the steam generator YES NO Four possible malfunctions can prevent water from filling the steam gener ator during the preheat and steaming cycle e The plumbing between the drain valve and fill valve or drain valve and steam generator is blocked e The operational water float upper switch is malfunctioning e The fill solenoid valve is blocked or malfunctioning e The 3 wa
256. upply ee ee ern eet Aen ey d Cleveland Range Inc SteamCraft 10 Service Manual Chapters PIPE SIZES AVAILABLE 3 8 X 3 8 NPT Any Combination 3 8 x 34 NPT Straight Through v2 x 3 8 NPT Any Combination V2 x Ye NPT Any Combination v2 x 4 NPT Straight Through 1 0 PRESS DROP CAPACITY BTU HR AGA STD NAT GAS 1 000 BTU CU FT 75 000 75 000 100 00 140 000 140 000 LP GAS 2 500 BTU CU FT 121 500 121 500 162 000 226 800 226 800 If replacing an existing valve disconnect all plumbing and electrical connections from the old control The control may be installed in any orientation The arrow on the valve indicates the direction of gas flow through the control You should use new pipe that is properly reamed and free of burrs and chips If you are using old pipe be sure it is clean and free of rust scale burrs chips and old joint compound Apply pipe joint compound pipe dope that is ap proved for all gases only to the male threads of the pipe joints DO NOT apply compound to the first two threads see fig 1 for typical piping connections If you are using a vise or open end wrench to hold the valve while installing piping do not tighten exces sively as this may damage the valve See SYSTEM WIRING when making electrical con nections After all gas and electrical connections are completed turn gas on and check for leak detection sol
257. ure the drain is not blocked 4 Clean the protective plastic film off the outside of the Steam Craft 10 5 Refer to the Installation Check List on page 8 and verify that each task has been completed in accordance with the referenced paragraphs Pay particular attention to e Voltage Requirements and Electrical Connections e Water Quality and Pressure Requirements e Free Air Drain Layout and Venting e Gas Supply Pressure Requirements if applicable e Exhaust Hood Venting if applicable 6 Refer to Figure 2 8 and Table 2 3 and verify installation of proper size fuses or breakers 7 Check that the water supply valves are open Page 34 Chapter 2 SteamCraft 10 Service Manual Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 Operating Tests 8 If using a SteamerGard water treatment system refer to the SteamerGard manual and start the system Check that all valves between the Steamer Gard and the SteamCraft 10 are open 9 For gas fired models 24 CGA 10 and 24 CGP 10 turn on the main gas supply valve only after the gas supply lines and the burner controls are tested Perform these operating tests only after completing the Installation Checks and correcting any deficiencies These operating tests consist of observing various steamer functions in the MANUAL and the TIMED operating modes Read through all of the procedures before starting e The SteamCraft 10 has two cooking compartments and each compartment has a separate
258. ures are arranged in two columns and have three main components e The left column contains short sentences or phrases that propose actions observations or questions regarding Steam Craft 10 operations or their results e The right column contains detailed information about the subject proposed in the left column and suggests corrective action or further testing Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 97 The third item are the Yes No arrows in the left column The arrows direct the test technician from one test or action to the next In most cases continue on to the next left column item for YES answers and follow the instructions to test or repair the component for NO answers INITIAL TEST PROCEDURE GENERAL PREPARATIONS For both Models 24 CGA 10 and 24 CEA 10 perform the following checks and inspections before starting the INITIAL TEST PROCEDURE for the specific model being tested 1 If not already done review the COMPONENT TESTING FUNDAMENTALS section starting on page 96 2 Ask the person in charge of the SteamCraft 10 about the unit s performance history and specifically about the current problems or symptoms For example e How was the unit working before this specific problem started e How was the unit being used when it malfunctioned e How did the unit operate during the malfunction e How long after installation did the trouble Start e How long has
259. urners do not light The burner ignition and control components have already been tested in Phase 3 above Only a failure of the TIMED MANUAL switch and or the electronic timer can prevent the burner fan from starting the burner ignition sequence 1 Check the TIMED MANUAL switch according to component test CT 9 2 Check the electronic timer according to component test CT 17 IT 4 11 Do the burners and fan motor shut off when the key pad display reaches zero YES NO Replace the Timer Repeat Phase 4 tests IT 4 6 through IT 4 11 for the lower compartment control panel 1 Set the upper compartment timer to the zero 00 00 2 Cool the water in the steam generator to preheat temperature by running a partial blowdown cycle a Set the ON OFF switch to the OFF position for one minute This will drain about a half of the hot water from the steam generator b Set the ON OFF switch back to the ON position This will replace the drained hot water with cool water 3 Perform Phase 4 electronic timer testing using the lower compartment control panel Phase 4 testing is complete for Units with Electronic Key Pad Timer Control Panels Printed 3 93 Cleveland Range Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 111 INITIAL TEST PROCEDURE MODEL 24 CEA 10 Before starting this procedure review the Introduction and perform the General Preparations Upper and Lower Compartment Steam Genera
260. ution or soap suds Bubbles forming indicate a f oe rm pa reet me men IMMEDIATELY s D TURING CAS Surry JIN atta Figure 2 Piping Connections leak SHUT OFF GAS AND FIX ALL LEAKS Printed 3 93 211 212 SteamCraft 10 Service Manual Chapter 8 Models 24 CGA 10 and 24 CEA 10 INSTALLATION cont MANUAL VALVE KNOB Manual valve knob is a two position On Off type To Turn On Rotate knob clockwise or counterclock wise to line up ON on knob with indicator on cover casting To Turn Off Rotate knob clockwise or counterclock wise to line up OFF on knob with indicator on cover casting SYSTEM WIRING To prevent electrical shock and or equipment damage disconnect electrical power to system at main fuse or circuit breaker box until installation is complete All wiring should be installed in accordance with local and nation electrical codes and ordinances Always check that the elctrical power supply used agrees with the voltage and frequency shown on the gas control PRESSURE REGULATOR ADJUSTMENT The regulated outlet pressure both Lo and Hi outlet has been calibrated at factory Although additional adjustment should not be necessary the full outlet regulator pressure can be field adjusted for outlet pressure of 3 0 to 5 0 W C for Natural gas and 9 0 to 12 0 W C for LP Do not force adjustment socket set screw beyond these limits If a valve has been factory adjuste
261. ve IT 1 6 Does the blowdown cycle last for three minutes YES NO NOTE The 3 minute timer stops the blowdown cycle approximately three minutes after starting the blowdown cycle Watch the float rinse nozzle and the drain pipe to floor drain gap Three minutes after switching the main disconnect to the ON position there should be no water flow at either point If the blowdown cycle has stopped before the above test sequence is complete the cycle can be restarted by switching the ON OFF switch to the ON position and back to the OFF position Test the 3 Minute timer according to component test CT 2 Phase 1 testing is complete Proceed to Phase 2 testing NOTE If the components of the upper and lower compartment and steam generator groups were not examined simultaneously during Phase 1 repeat the tests for the components not yet tested Printed 3 93 Cleveland Ranges Inc Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 115 PHASE 2 TESTING This phase of testing pertains to the components associated with preheat functions After completing Phase Testing verify that the following conditions are set to start Phase 2 testing e The right side and front access panel are removed and the float assemblies relays and contactors are clearly visible e The Main Disconnect Switch is in the ON position and the 3 minute blowdown cyck has stopped e The ON OFF power switch is in the OFF position e Both
262. veland Range Inc Models 24 CGA 10 and 24 CEA 10 High Leve Switch normally closed Low Leve Switch normally open LU A e Water in The Float and Steam Generator is Below The Safe Operating Level High Level Switch OPEN Low Level Switch LZ E SE CLOSED Water Fil Valve i CLOSED LU C e Water in The Float and Steam Generator Is Above The Upper Float Switch Cleveland Range Inc SteamCraft 10 Service Manual Chapter 5 Page 73 High Level Switch m normally closed Low Level Switch CLOSED Water Fill Vaive OPEN LU B e Water in The Float and Steam Generator Is Above The Lower Float Switch e D e The Water Fill Valve cycles with the Upper Float Switch Switch OPEN Valve CLOSED Switch CLOSED Valve OPEN Figure 5 2 Steam Generator Water Fill Cycle Printed 3 93 Models 24 CGA 10 and 24 CEA 10 Page 74 SteamCraft 10 Service Manual Chapter 5 Figure 5 3 Steam Generator Preheating The heating components cycle Preheating does not start The heating components until the water has reached B E turn on when water is above m Ek ae De a E m T sta Heater the Safe Operating Level the Lower Float Switch T stat CLOSED Heater ON steam Generator Preheating Refer to Figure 5 3 The preheat cycle warms the water in the steam generator to 185 F It automatically holds that temperature until the steaming cycle starts A When the ON OFF switch is first set t
263. wn e Units with the mechanical dial timer use a separate 3 second timer and buzzer to signal the end of the cooking cycle These units do not have a compartment thermostat ELECTRICAL CIRCUIT COMPONENTS Terminal Block This section briefly describes ihe major SteamCraft 10 circuit components and their functions Refer to the drawings in Chapter 7 for the installation location assembly details and parts ordering information for each of these components When servicing repairing or replacing any component use only Cleveland Range authorized repair parts and procedures Check that the repair part has the correct part number and is compatible with the power supply rating on the SteamCraft 10 Product Identification Plate Chapter 1 Verify proper wiring connections of newly replaced parts before energizing the unit Refer to the schematic and wiring diagrams on the unit or at the end of Chapter 7 The terminal block provides connection points from the external electrical supply to the steamer e Model 24 CEA 10 The three terminal block has connections to the transformer and heater contactor e Model 24 CGA 10 The two terminal block has connections to the transformer and operating component circuits Models 24 CGA 10 and 24 CEA 10 ON OFF Switch Figure 5 15 ON OFF Switch TIMED MANUAL Switch Figure 5 16 TIMED MANUAL Switch 3 Minute Timer SteamCraft 10 Service Manual Chapter 5 Page 85 Power from the main transforme
264. y R2 e If the meter does not read 115 120 VAC across the terminals of relay R2 continue this procedure with step 9 e If the meter reads 115 120 VAC across the terminals of relay R2 the condenser solenoid wiring is faulty For the top condenser on the model 24 CEA 10 check the brown brown white condenser solenoid wiring for continuity and secure connections For the top condenser on the model 24 CGA 10 check the yellow white yellow condenser solenoid wiring for continuity and secure connections For the bottom condenser on the model 24 CEA 10 check the yellow white yellow condenser solenoid wiring for continuity and secure connections For the bottom condenser on the model 24 CGA 10 check the Brown white brown condenser solenoid wiring for continuity and secure connections Replace or repair faulty wiring and connections Figure 6 25 Condenser Solenoid Valve 10 Check for 115 120 VAC from the TIMED MANUAL switch orange wire Top 24 CGA 10 connection to the ON OFF switch black wire connection If the meter does not read 115 120 VAC between these TIMED MANUAL and ON OFF switch wire connections the fault is not in the condenser solenoid valve Test the TIMED MANUAL switch e If the meter reads 115 120 VAC between these TIMED MANUAL and ON OFF switch wire connections the condenser solenoid wiring is faulty Check the brown white brown orange and black wires of condenser solenoid wiring for continuity and secure connecti
265. y drain valve is blocked or malfunctioning 1 Check the fill solenoid valve and adjoining plumbing for blockage 2 Check the drain solenoid valve and adjoining plumbing for blockage Cleveland Range Inc Printed 3 93 Page 116 SteamCraft 10 Service Manual Chapter 6 Models 24 CGA 10 and 24 CEA 10 YES Continued 3 If the plumbing drain and fill valves are not blocked test the operational water float for continuity through the upper switch according to compo nent test CT 6 NOTE This switch controls operation of the fill solenoid valve during preheat and steaming operations It is normally closed and remains closed until float water level reaches approximately one inch from the top of the float cylinder 4 If the operational water float is functioning properly test the water fill solenoid valve according to component test CT 4 5 If the waterfill solenoid valve is functioning properly test the 3 way drain valve according to component test CT 1 NOTE This valve is normally open directing water flow to the drain piping During preheat and steaming operations the solenoid closes this valve directing water to the steam generator The valve remains closed until the float water level reaches approximately one inch from the top of the float cylinder IT 2 3 Does the heater contactor close when the On Off Switch is switched to the On posi tion YES NO NOTE During preheat and steaming operations this lower float switch con
266. y installed and connected after flushing temporarily cap the water supply lines e If the final installation and connections are performed immediately refer to the connection instructions in the SteamerGard manual and Connect Water Supply Lines following The water supply connections are located under the SteamCraft 10 as shown in Figure 2 2 Connect the water supply lines to the Steam Craft 10 by following both the general connection requirements and those requirements specific to the type of supply system either untreated water supply Figure 2 10 or water supply treatment system Figure 2 11 General Connection Requirements 1 Apply pipe dope or teflon tape to any threaded connection 2 Flush the water supply lines before connecting the strainers and again before connecting the lines to the SteamCraft 10 connections 3 When installing water strainer s use a strainer with a 40 mesh screen as illustrated in Figure 2 13 e Make sure the arrow on the strainer body points in the direction of flow into the steamer e Install the strainer so the access nut points down 4 If incoming line pressure exceeds 60 psi static pressure install a pressure regulator to maintain the SteamCraft 10 pressure requirements specified in Install Water Supply Lines page 24 Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 2 Page 27 Testing Water Supply Lines Install and Connect Gas Supply Lines
267. y level sensor The Steam Craft 10 automatically shuts off Re open the manual water supply valve The Steam Craft 10 automatically re fills the steam generator to the safety level and resumes steaming 11 Leaving all control settings as they are and allowing the Steam Craft 10 to continue steaming advance to the Timer Test procedure for the unit being tested The Timer Test for the Key Pad Control Panel starts after this procedure The Timer Test for the Dial Timer Conrrol Panel starts on page 38 Timer Test Procedures Key Pad Control Panel 1 Verify that electrical power and control settings are retained from the previous Operating Test Main Disconnect Switch is ON ON OFF switch is ON Both upper and lower TIMED MANUAL switches are set to MANUAL Both upper and lower Timers are set to 00 00 If either timer is not zeroed press and hold the CLEAR key on the key pad control panel until the timer is zeroed 2 Set the TIMED MANUAL switch to the TIMED position With the timer zeroed the steam generating cycle stops a The heating system turns off and condenser flow stops b Steam stops entering the cooking compartment s 3 Open the cooking compartment door to vent the steam and allow the compartment to cool slightly After 2 or 3 minutes close the door and continue testing 4 With the TIMED MANUAL switch on TIMED set the key pad timer for 10 minutes Press the number keys 1 0 0 0 in sequence The display reads 10
268. y running a partial blowdown cycle a Set the ON OFF switch to the OFF position for one minute This will drain about a half of the hot water from the steam generator b Set the ON OFF switch back to the ON position This will replace the drained hot water with cool water 3 Perform Phase 4 mechanical timer testing using the lower compartment control panel Phase 4 testing is complete for Units with Mechanical Dial Timer Control Panels ELECTRONIC KEY PAD TIMER TEST SEQUENCE IT 4 6 Does the control panel digital display light when the TIMED MANUAL switch is set to the TIMED position YES NO ome Failure of the electronic timer or its power transformer prevent the digital display from lighting 1 Check the timer transformer according to component test CT 16 2 Check the electronic timer module according to component test CT 17 Cleveland Range Inc Printed 3 93 Models 24 CGA 10 and 24 CEA 10 SteamCraft 10 Service Manual Chapter 6 Page 109 Open the cooking compartment door for a few minutes to cool the compartment NOTE The compartment should be below cooking temperature to start testing Set the timer of the upper control panel for 5 minutes and press the START STOP key NOTE After the cooking time is set and the START STOP Key is pressed the compartment thermostat switch prevents timer countdown until the compartment reaches cooking temperature This switch is normally open closes at cooking temperature and re
269. ystem blowdown must be performed after each shift as specified in the Shut Down and Cleaning procedure Models 24 CGA 10 24 CGP 10 24 CEA 10 24 CEP 10 SteamCraft 10 Service Manual Chapter 3 Page 61 Shut Down and Cleaning At end of day or shift This procedure must be performed at the end of each day or shift to maintain warranty coverage 1 Refer to Power OFF Automatic Blowdown and turn off the Steam Craft 10 Allow 3 minutes for complete blowdown cycle 2 Open the steamer door and allow steamer to cool WARNING Inside of steamer stays hot for a long time Be careful when cleaning inside steamer compartment 3 Remove the slide racks Wash and rinse racks separately or clean them in a dishwasher according to health requirements Do not remove the drain screen 4 Remove any spilled food from inside compartment and clear any residue from the drain screen Clean the interior of the compartment thoroughly Use a soft bristle brush to remove stubborn food particles Do not use abrasive cleaning compounds or steel wool Rinse inside of steamer compartment with clean water WARNING Let rinse water drain through compartment drain opening If water does not drain freely drain lines must be cleaned before cooking again Clogged or slow drains are dangerous because hot water can collect in compartment and spill out when opening compartment door 5 Clean the door assembly e Remove the door gasket assembly see Figure 3 9
270. ze the float low level switch is good Test the relay e If the meter reads 0 VAC across the float low level switch and the relay R1 energizes continue this procedure with step 10 10 As the water level continues to rise in the float cylinder the lower float reaches its stop The upper float starts to move up with the water level When the water level is about one inch from the top of the float cylinder the upper float magnet opens the upper level switch and de energizes the fill solenoid valve The valve closes and the water level stops rising As the unit begins to generate steam the water level drops the upper float energizes the fill solenoid and the water fills to the upper level The water level and upper float cycle up and down two to five times per minute e If the float assembly performs as described above it is operating properly End this procedure here e H the upper float does not cycle with the water level it is jammed or damaged clean or replace the float assembly e If the water level in the cylinder continues to rise after the upper float reaches the upper stop continue this procedure with step 11 11 Measure the voltage across the fill solenoid valve terminals e If the meter reads 115 120 VAC the high level float switch is faulty Replace the float assembly e If the meter reads 0 VAC the fault is not in the float assembly Test the fill solenoid valve Printed 3 93 Cleveland Ranges Inc Models 24 CGA

Service, Parts, Operation, Installation & General Manual

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Service, Parts, Operation, Installation &amp; General Manual

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Service, Parts, Operation, Installation & General Manual