24CSM Service manual - Garland
Contents
1. PRP RESET SWITCH P N 19994 13 4 WHT o o DRAIN VALVE P N 22221 RED RED INTERMITTENT BLOWDOWN OPTION DRAIN VALVE WIRING 3o RED RECYCLING DRAIN VALVE Q2 TIMER P N 22221 P N 104716 RED 19 o ro 104828 B 2 10 500 PROBLEM Steam Coil Boiler won t build pressure Boiler won t build pressure Y Is the red light on in the power or Replace the probe circui switch Yes Is there power to the steamer T Yes eplace the Connect power to steamer Replace the latching relay on off rocker Yes switch L With the High With a jumper Limit pressure from terminal 5 to Mo 1S there water n switch 9 on the latching Steamer won t gt lt the sight glass temporarily relay does the fill bypassed does No Amber light go out the Amber light go with the reset Replace off when the reset switch depressed Yes the high limit Yes switch is m pressure depressed o i switch Ne With the SLWCO switch temporaril Is the Amber light Does this boiler b RAE in the reset After depressing ypa 1 have the optional the Amber light go switch the reset switch No L Yes gt ght g2. If water Is leaving the fi solenoid and not draining from the generator where is it going check PROBLEM Boller Replace steam Steam Coil solenoid Boiler Over d Pressurizes Does EXE UNUM pressure switc y open operating OPen a proper ves of winn operating valve opens switch Senica mania for that steamer E Does the 15 Y safety valve open pressure Replace the with little or no In the gauge Does steam coil safety valve pressure on the No continue to rise leak gauge after it has with no voltage to been replaced contactor coil T Yes No cale is blocking the plumbing to the gauge Delime the boiler Replace the weeper valve PROBLEM Steam Coil Boiler Stops Producing Steam Boiler stops steaming Y Does the amber No 4 lightin the reset Switch come on eplace operating pressure Delime boiler Switch Yes Y 195 Is the temperature sensitive dot surrounded by a yellow circle on Does boiler have the optional I Yes gt Secondary Low Are the probes covered with Scale the water board Water Cut Out white I No XS No
3. Is high pressure Will Boiler stop Replace high making steam Switch NUTS lt pressure switc Replace with SLWCO premature y the water board It has temporarily No reached a temperature of bypassed over 180 degrees No Does SLWCO open and close as float is moved up Yes and down Replace the water board nstall dela timer for SLWCO PROBLEM Steam Coil Boiler Overfills Replace the fill solenoid Boiler over fills Y With the HI probe emersed in water is there 120 VAC between terminals L2 and WF on the water board Yes Replace 3 minute timer No With the wire removed from terminal 10n the minute timer is there 120 VAC to the fill solenoid Yes With a jumper across terminals HI and C on the waterboard is there 120 VAC between L2 and WF Replace the Yes water board No The probe circuit is open Check continuity of the probe wire and probe
4. Yes Secondary Low ff with th does the Amber 5 off with the reset Replace the light go off Water Cut Out switch depressed water board 9 No No Yes Replace the SLWCO switc sisi 120 VAC Is there 120 VAC between terminals Is there 120 VAG L2 andHTR on th between 4 No terminals L2 and to the coilof the water board with a jumper between Low and C Replace the atching rela HTR on the water board Yes Y Is there 120 VAC to the coil of the steam solenoid Is there 120 to terminal 6 on the latching relay steam solenoid with the operating pressure switch temporarily bypassed No Yes T Yes Replace the Reset switch eplace the steam trap for the coil eplace the steam trap for the boiler Does the Steam I No solenoid open Yes Y Is there an steam atthe steam coil T Yes Y Is the steam trap for Incoming steam opening to remove air and water from coil Yes Y Yes Is there a lot of steam coming out the drain Yes Replace the team solenoid the water the Boiler is making Replace the operating pressure switch Replace the atching relay PROBLEM Steam Coil Boiler won t fill Boiler won t fill T Yes Y
5. Is there power to the steamer Yes Is there water to the steamer Y Is there 120 VAC between the 11 and L2 on the water board I No Yes Y Replace wiring to drain Replace the wiring to the intermittent blowdown timer Is there 120 VAC between L2 and WF on the water board Supply power to the steamer Supply cold water to the steamer Replace the on off rocker switch Remove No gt the wire from the HI terminal on the water board Is there 120 VAC between L2 and I No Replace the water board Yes Replace the Is there 120 VAC across the coil of the fill solenoid Y eplace the fil solenoid Is water leaving the fill solenoid Yes Y Does the steamer have the optional lt intermittent blowdown timer No Is there 120 VAC across the coil of the drain valve Yes Yes Y Is water draining from the Is generator there 120 VAC between terminals 2 amp 3 on the timer Yes T Yes Replace the intermittent blowdown Replace the drain valve WF Yes Y Is there debris on the HI probe extension Replace the wire to the Hi replace the probes tension
6. 82 Visit our Web Site at www clevelandrange com CLEVELAND RANGE SEQUENCE OF OPERATIONS Steam Coil Boiler Base To turn the unit on depress the red on off rocker switch 115 VAC is sent to the upper cabinets and terminal block in control box e 115 VAC is sent to normally open drain valve closing it e 115 VAC is sent to L1 and L2 of the water level board With the water level board energized and no water in the boiler 115 VAC is sent from the WF terminal to the fill solenoid The fill solenoid opens and the boiler fills through the drain valve e water fills to the low probe shorting it to ground e 115 VAC is sent from the HTR terminal through the normally closed contacts of the highlimit pressure switch to contacts of the ice cube relay and the amber reset switch energizing the amber light When the momentary amber switch is depressed 115 VAC is sent to the coil of the ice cube relay closing it The relay latches itself through a jumper to the coil e If either the high pressure switch or the low water cut off float switch opens the latch circuit opens e When the contacts close the amber light will energize and the process may begin again The relay contacts close sending 115 VAC through the normally closed contacts of the operating pressure switch to the coil of the supply steam solenoid With 115 VAC to the coil of the supply steam solenoid e The solenoid opens e Steam is sent to the coil in
7. C is sent from the HTR terminal through the normally closed contacts of the operating pressure switch to coil of the contactor s e The rising water also raises the float on the low water cut off switch closing it e 115 VAC is sent through the normally closed contact of the high pressure switch to the amber reset switch energizing the amber light 3 When the momentary amber switch is depressed 115 VAC is sent to the ice cube relay closing it The relay latches itself through a jumper to the coil e If either the high pressure switch or the low water cut off switch opens the latch circuit opens e When the contact close the amber light will energize and the process may begin again The relay contacts close sending 115 VAC to the coil of the supply steam solenoid 4 With 115 VAC to the coil of the supply steam solenoid e The steam solenoid opens e Supply steam is sent through the steam coil 5 The water in the boiler is heated to steam e As steam is generated and pressure builds the air is pushed out through the steamtrap e When steam goes through the steam trap and heats it to 192 degrees it closes 6 Pressure builds in the boiler to the set point e The operating pressure switch opens and the heat circuit is de energized e When the pressure drops below the set point the heat circuit is energized and the heat process begins again 7 Water continues to fill until the high probe is grounded When the high probe is groun
8. Statement of Responsibilities This document is for use by experienced and trained Qualified Cleveland Range LLC Authorized Service Representatives who are familiar with both the safety procedures and equipment they service Cleveland Range LLC assumes no liability for any death injury equipment damage or property damage resulting from use of improper use of or failure to use the information contained in this document Cleveland Range LLC has made every effort to provide accurate information in this document but cannot guarantee that this document does not contain unintentional errors and omissions The information in this document may be subject to technical and technological changes revisions or updates Cleveland Range LLC assumes no liability or responsibility regarding errata changes revisions or updates Qualified Cleveland Range LLC Authorized Service Representatives are obligated to follow industry standard safety procedures including but not limited to OSHA regulations and disconnect lock out tag out procedures for all utilities including steam and disconnect lock out tag out procedures for gas electric and steam powered equipment and or appliances All utilities gas electric water and steam should be turned OFF to the equipment and locked out of operation according to OSHA approved practices during any servicing of Cleveland Range equipment Qualified Cleveland Range LLC Authorized Service Represen
9. ded the WF terminal on the water level board is de energized The fill solenoid closes until the high probe is ungrounded for 05 seconds If the water level drops below the high probe for more than 20 seconds the WF terminal is energized and the water fill circuit begins again 8 When the unit is turned off by depressing the red rocker switch 115 VAC is removed from the heat circuit 115 VAC is removed from the drain circuit and the normally open drain valve opens allowing the unit to drain 115 VAC is sent to the 3 minute timer The three minute timer will energize the fill solenoid for 3 minutes while the steamer drains STEAM COIL GENERATOR CONTROL WIRING SECONDARY LOW WATER CUTOFF INTERMITTENT BLOWDOWN OPTION 15 VAC FROM CUSTOMER CONNECT GRA 3 MINUTE WATER VALVE INTERVAL P N 22223 TIMER P N 20478 BLU BLU i POWER SWITCH P N 19993 o POWER ON 4 WHT WHT PRESSURE P N 106561 VALVE SWITCH P N 22193 P N 19947 YEL WHT LOW HIGH LIMIT l WATER PRESSURE SWITCH SWITCH mE BLK P N 19995 og P N 19947 ORN 149 1j PNK WHT BOILER GROUND BLK WATER LEVEL PROBE EXTENSION W P N 62453 RED LOW WATER CONTROL SERT CUTOFF PROBE Low EXTENSION WATER LEVEL CONTROL P N 23198 REF PROBE P N 16671 P N 62452 OPERATING RELAY STEAM
10. i uum R jmd a WHT WF L2 GRN BOILER Di GROUND L1 BLK wATERLEVEL m c PROBE HI EXTENSION W PIN62452 CONTROL CIRCUIT RED LOW WATER CUTOFF PROBE LOW EXTENSION ORN WATER LEVEL CONTROL V HTR P N 23198 REF PROBE P N 16671 OPERATING STEAM PRESSURE VALVE SWITCH P N 22193 YEL P N 19947 ORN ORN e HIGH LIMIT RELAY PRESSURE P N 03524 RESET PINS19947 ORN 9 1 PNK OS lt A e RESET SWITCH PIN 19994 RELAY SOCKET PRP 5 P N 03525 138 14 WHT ue No l SOCKET DRAIN VALVE P N 03525 P N 22221 RED RED INTERMITTENT BLOWDOWN OPTION DRAIN VALVE WIRING 3 REH ANTERVAL DRAIN VALVE 2 TIMER P N 22221 P N 104716 RED RED 104827 D CLEVELAND RANGE SEQUENCE OF OPERATIONS Steam Coil Boiler Base With Secondary Low Water Cut Off Switch 1 To turn the unit on depress the red on off rocker switch 115 VAC is sent to the upper cabinets and terminal block in control box e 115 VAC is sent to normally open drain valve closing it e 115 VAC is sent to L1 and L2 of the water level board 115 VAC is sent to the open contacts of the low water cut off float switch 2 With the water level board energized and no water in the boiler e 115 VAC is sent from the WF terminal to the fill solenoid The fill solenoid opens and the boiler fills through the drain valve The water fills to the low probe shorting it to ground e 115 VA
11. s follows TOTAL DISSOLVED SOLIDS less than 60 parts per million TOTAL ALKALINITY less than 20 parts per million SILICA less than 13 parts per million pH FACTOR greater than 75 Consult a local water treatment specialist for an on site water analysis for recommendations concern ing steam generator feed water treatment if required in order to remove or reduce harmful con 34 IPS minimum for 35 50 psi For pressures above 50 psi a Pressure Reducing Valve must be specified ELECTRIC CLEARANCE 115V 31 PH RIGHT 12 00 The Floor Drain 09 not connect other units 25 watts per compartment If adjoining wall or equip ment is over 30 00 high must be located 1 this drain 25 watt Steam Generator eer o DRAINAGE 0 1 IPS common drain the Steam Coll Drain Control REAR 0 centrations of minerals The use of highly mineral equipment 34 IPS Do not ee A ized water will mean that more frequent servicing of base connect to common from right when located the steam generator will be necessary The fact that dran near combustible walls a water supply is potable is not proof that it will be suitable for the generator Cleveland Range reserves right of design improvement or modification as warranted Cleveland Range LLC 1333 East 179th St Cleveland Ohio U S A 44110 Ph 1 216 481 4900 Fx 1 216 481 37
12. tatives are obligated to maintain up to date knowledge skills materials and equipment D Convection Steamers Cleveland i Cleveland Classic Series MODEL 24 CSM TWO COMPARTMENT PRESSURELESS STEAM COIL GENERATOR ITEM NUMBER 24 WIDE CABINET BASE DESIGN JOB NAME NUMBER 12 00 i 305mm 49 29 00 356mm 737mm 7 40 33 50 610mm 851mm SHORT FORM SPECIFICATION Shall be Two Compartments CLEVELAND Convection Steamer Model 24 CSM Steam Coil Steam Generator 115 volts single phase Solid State Controls operate timing water level and safety functions Steam Generator with Automatic Water Fill on start up and Automatic Blowdown 62 00 1575mm e with additional Manual Drain Valve For each cooking compartment 60 191mm minute Mechanical Timer Manual Operation Mode and Cold Water Condenser Type 304 Stainless Steel cooking compartment T 0 j a 00 NOTE When ordering optional reverse door openings Ln pening Control Panel door openings cooking compart dimm 4imm ments and clearances are opposite that shown Steam Supply Piping 34 IPS Cold Water Inlet 35 psi minimum 60 psi maximum WATER QUALITY REQUIREMENT The recommended minimum water quality standards whether untreated or pre treated based upon 10 hours of use per day and a Daily Blowdown are a
13. the boiler The water in the boiler is heated to steam e As steam is generated and pressure builds the air is pushed out through the steamtrap e When steam goes through the steam trap and heats it to 192 degrees it closes Pressure builds in the boiler to the set point e The operating pressure switch opens and the heat circuit is de energized e When the pressure drops below the set point the heat circuit is energized and the heat process begins again Water continues to fill until the high probe is grounded e When the high probe is grounded the WF terminal on the water level board is de energized fill solenoid closes until the high probe is ungrounded for 05 seconds If the water level drops below the high probe for more than 20 seconds the WF terminal is energized and the water fill circuit begins again 8 When the unit is turned off by depressing the red rocker switch 115 VAC is removed from the heat circuit 115 VAC is removed from the drain circuit and the normally open drain valve opens allowing the unit to drain 115 VAC is sent to the 3 minute timer The three minute timer will energize the fill solenoid for 3 minutes while the steamer drains STEAM COIL GENERATOR CONTROL WIRING INTERMITTENT BLOWDOWN OPTION 115 VAC FROM CUSTOMER CONNECT GRA 3c gt INTERVAL WATER VALVE i TIMER P N 22223 Z P N 20478 BLU BLU 1 POWER SWITCH POWER ON P N 19993 ia
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