CMA Dishmachines CMA-44 Dishwasher User Manual
Contents
1. MODEL CMA 44 INSTALLATION amp OPERATION MANUAL DISHMACHINES vere SCHOTT RIENGE 12700 KNOTT GARDEN GROVE 5 a0 864 6447 www cmadishmachines com Table of Contents CMA 44 1 1 OMA AA RN 2 2 1 Inttoduction to CMA4A4 a EEA E 3 2 2 Recetying and Installation 4 2 3 Receiving and Installation Old Models 5 2 3 1 CO 6 23 2 Plumbing saccade 6 23 3 WO 6 2 3 4 Scrap Tray Assembly and Overflow Chute Installation 8 23 Pump Impeller sasssa sandana a g R a E 9 2 3 6 Optional Hood Adapter Set Of TY 10 2 3 7 Optional Freestanding Scrap Trap and Adaptor Kit 11 2 3 8 Field Installed ACCOSSOVIGS ba ER BAR 12 2 3 8 1 Chemical Dispensers li tai EA S R ala a sn a a 12 2 3 8 2 Hood Ss 12 2 3 9 MA 72 2 4 Safety Tips for the 44 13 3 12 et 14 3 1 1 Auto Fill Timer Auto Re Fill err 14 3 1 2 Auto Fill Timer Old 14 3 1 3 Rinse Pressure sni 14 3 1 4 W2. MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 20 Customer Notice DISHMACHINES 4 CMA 44 Customer Notice IMPORTANT NOTICE INSTALLATION INSTRUCTIONS ON NEW STYLE CMA 44 and CMA 66 Conveyors SOIL PURGING SYSTEM The CMA 44 and CMA 66 conveyors are multi tank dishmachines These conveyors use very little rinse water less than one gallon per rack of dishes The rinse water enters the wash and overflows into the pre wash tank As water rises in the pre wash tank it will overflow from the conveyor SCRAP TROUGHS carrying soil to be discharged into the scrap accumulator For optimum performance of equipment it is critical that these installation and set up instructions be followed precisely eae aaa VERY IMPORTANT Some 1 dishtables have scrap troughs just prior to entering or exiting conveyor Please call CMA Customer Service at 800 854 6417 for important installation instruction relating to table scrap troughs or see Customer Notice Section 4 in Installation amp Operation Manual WATER MUST FLOW TOWARD CONVEYOR VERY IMPORTANT Some dishtables have a pre rinse sink downstream from the conveyor Water must not accumulate on VERY IMPORTANT These units must be installed level to the dishtable or run down table to the pre rinse floor and all the rinse water must be processed through the sink otherwise conveyor tanks will drain conveyor and exit the scrap accumul
3. Check movement replace it Defective thermostat or setting Replace thermostat or adjust Defective heater contactor Replace heater contactor Defective heater Replace heater Defective heater switch Replace switch Wire connections Check and correct Racks stuck Broken rack Replace rack Tray track alignment Adjust properly Low wash tank temperature Low incoming water supply 150 F low temp 180 F high temp Check hot water supply Thermostat setting Adjust thermostat Vent hoods Close vents as much as possible Defective heater Replace heater Low rinse water pressure Plugged rinse jets Remove and clean Pressure regulator out of adjustment Adjust pressure regulator or no rinse Water sol valve coil or diaphragm Replace or clean Dirty rinse jets Remove and clean jets Defective rinse reed switch Replace reed switch Chemicals Dispenser or settings Check dispenser troubleshooting guide Rinse pressure Set 20 psi Machine loosing water Quick drain on pre wash end Plumb quick drain back into pre wash tank above water line Sheet pans Use CMA sheet pan rack Drain valves open Close completely Low spray arm pressure Tank water level low Check rinse pressure drain valve open Clogged jets Clean jets Motors connected wrong Connect motors to reverse impeller direction
4. 4 The plumbing connection is located at the top back of the machine The CMA 44 features a scrap tray that may be emptied on a periodic basis without interruption of the flow of work and the manner in which the tank is filled ensures that the dishes are always rinsed with fresh water instead of re circulated water The CMA 44L is designed to deliver 0 8 gallons of fresh rinse water and the CMA 44H is designed to deliver 0 94 gallons of fresh rinse water for each rack This water flows from the rinse and power wash tank into the pre wash tank and then overflows into the scrap tray carrying debris with it thereby providing a much cleaner environment for the wash and rinse cycles A single phase CMA 44 is available for installations where the only power available is 208V 230V 1 PH There are also enhancements that can be chosen when desired such as an optional Auto Fill function optional Vent Hood Adaptors and other machine accessories such as stainless steel dishtables Call 800 854 6417 for more information This manual is structured to provide a complete reference guide to the CMA 44 It is presented in a manner that all users will be able to comprehend and use as an effective tool in supporting the operation and maintenance of the dishmachine The first section explains how the machine is packaged and what to look for when receiving the machine Instructions are provided in the manual explaining how to unpack the machine and then i
5. 60 Hz dedicated circuit should be used to supply electrical energy to the CMA 44 dishwasher see specification sheet page 2 Connect the wire that has the highest voltage stinger lead to the main contactor s power terminal L2 Power lead wires L1 L2 and L3 used for the CMA 44 at installation must comply with all local and State electrical codes 2 3 2 Plumbing The water supply connection is made with a 1 2 hot water line to the water supply inlet on the top of the machine The water supplied to the machine must be a minimum of 140 F for the CMA 44L and a minimum of 180 F for the CMA 44H NOTE The High Temp machine CMA 44H comes with two water supply line connections One is for the final rinse at 180 F and the other is to fill the machine this water will be heated to the appropriate temperature by the wash tank heater See specification sheet on page 2 There are two 2 drain connections to be made One connection is made at either end of the horizontal drainpipe coming from the wash tank and the other connection is made at the scrap tray drain Instructions for installing the scrap tray assembly are provided in section 2 3 4 Scrap Tray Assembly and Overflow Chute Installation One of the ends of the horizontal drainpipe has a cap on it simply move the cap to the other end if it s currently on the end needed for the drain connection 2 3 3 Installation Notes 1 Tables must slant into the machine for proper
6. be running to set the pressure regulator While the machine is in the FINAL RINSE CYCLE adjust the pressure regulator to 20 PSI See section 3 1 3 Rinse Pressure Regulator for detailed instructions MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 7 Getting Started 2 3 4 Scrap Tray Assembly and Overflow Chute Installation The scrap tray assembly and overflow chute which came packaged inside the machine can easily be installed by executing the following steps Figure 2 3 4 below illustrates the assembly as it would appear for a Left to Right machine a Right to Left machine would simply be the mirror image Caution For proper spacing the SS flat washer item 2 must not be located between the head of the trusshead bolt and the inside of the machine Figure 2 2 4 ITEM NO ITEM NO NO P N DESCRIPTION No REQD DESCRIPTION 1 7 00905 00 14 20 X Trusshead Bolt 6 4 00906 00 14 20 X Hex Head Bolt 2 11 00924 00 4 SS Flat Washer 7 1 17579 00 Scrap Trap Holder 3 11 00912 00 20 Nylon Lock Nut 8 1 01577 10 Scrap Trap Body Molded 4 1 13511 26 CMA 44P Overflow Gasket 9 1 01577 20 Scrap Trap Drawer Molded 5 1 13511 06 CMA 44P Overflow Chute L R 13511 16 CMA 44P Overflow Chute R L 1 Remove the items from their packing and verify that all the pieces are present 2 Attach the overflow chute with the fiv
7. drainage for each 28 of table length a drop of at least 34 in table height is recommended See Figure 2 3 3a FRESH WATER TOSCRAP PREWASH WASHRINSE ACCUMULATOR DISH FLOW Figure 2 3 3a See also installation instructions on new style CMA 44 conveyor Section 4 Customer Notice 2 The scrap tray assembly is placed inside the machine for shipping Follow the instructions provided in section 2 3 4 Scrap Tray Assembly and Overflow Chute Installation to properly attach the scrap tray assembly to the dishmachine 3 Figure 2 3 3b shows the different settings available on the conveyor cam Electrical and plumbing connections must be made by a qualified person who will comply with all available Federal State and Local Health Electrical Plumbing and Safety codes MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 6 Getting Started P N 13505 12 205 RACKS CMA44H 242 RACKS CMA 44L P N 13505 10 OLD Models 205 RACKS CMA 44H 242 RACKS CMA 44L Figure 2 3 3b 4 Ona3 phase machine the water pump motors are also 3 phase and depending on which terminal each phase is connected to the motor can rotate in either direction Check the direction of rotation by removing the dust cap on the back of the motor The motors must turn clockwise looking at the shaft from the back of each motor To change the direction of rotation switch any two power lead wires at the motor 5 The machine must
8. in the final rinse tank 3 2 1 1 Low Temperature Applications See dispenser manufacturing operational instructions for sanitizer adjustments for Low Temp applications The sanitizing pump operates when the fresh water enters the machine during final rinse The water is treated at 50 PPM parts per million The MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 16 Operation pressure regulator is adjusted to 20 PSI This allows 0 8 CMA 44L or 0 94 CMA 44H gallons of water to enter the machine each time a rack is washed It is recommended that the 5 1 2 chemical solution be standardized to allow uniform dispensing of the sanitizing solution into the flow of rinse water as the machine operates At this level maximum shelf life is available Inside the control box is a labeled power block for the sanitizer and rinse aid which is powered when the final rinse trip switch is activated The detergent power block is also labeled and provides power when the conveyor and pump motors are operational 3 3 Regular Service and Maintenance Checklist 1 Upon entering the facility make a preliminary check of the flatware and glasses especially the stemware This will give you a quick indication of how the machine is functioning 2 With the circuit breaker providing power to the machine turned off open the door and check the interior condition of the machine a The stainless steel on the inside of the machi
9. out when actuated 6 Replace all the strainer trays into their proper position and fill the machine MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 17 Operation 10 11 12 13 14 15 16 Place rack into the machine and observe the spray pattern of the pre wash the wash and the final rinse a Check the titration of the wash tank at this point b While the rack is in the final rinse check for 50 PPM residual chlorine in the final rinse c Observe the final rinse vacuum breaker for leaks Run a stemware or glass rack through the machine and check the results on the glassware a Observe the check valves for the rinse and sanitizer Make sure they are not leaking or building up chlorine crystals If they are clean leave them alone b Check the condition of the chemical tubing from the peri pump to the check valves c Check the peri pump squeeze tubes to make sure they are tight pumping product properly and not leaking within the peri pump There should be no moisture within the peri pump itself d Observe the final rinse pressure at 20 PSI Adjust if necessary Check the condition of the chemical tubing coming from the detergent rinse and sani buckets up to the machine With the machine stopped check the roller cam bearing on the conveyor You should be able to move the outer cover of that roller cam bearing with your finger Also keep it well greased so th
10. so turn off the circuit breaker as well Do not get in the path of the conveyor rocker arm or the conveyor s moving bar Do not reach into the rocker arm area without first making sure the dishmachine is turned off at the circuit breaker Do not open the front door when the machine is in operation Avoid spraying water on or around the electrical control box on the top of the machine When cleaning do not spray water directly on the motors When removing the final rinse arms for cleaning exercise caution The final rinse arms may be filled with chemicals and or under pressure MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 13 Operation DISHMACHINES 3 Operation 3 1 Initial Setup 3 1 1 Auto Fill Timer Auto Re Fill Timer Both timers for the CMA 44 are set at the factory When the power button is activated the machine should fill until it begins to overflow into the scrap tray at which point it should stop filling If necessary adjust the time set on the Auto Fill Timer to allow an appropriate amount of water flow to properly fill the Dishmachine After the auto fill is timed out the refill system is energized which will add water to the wash tank if the water level gets below the float line and then after sensing water will fill for a short adjustable period of time If necessary adjust the time set on the Auto Re Fill Timer to allow an appropriate amount of water flow to pro
11. 3512 00 are available for installations where the space is insufficient to accommodate the standard side mounted scrap trap or where drain access is easier by locating the scrap trap some distance away from the Dishmachine ITEM NO ITEM NO NO P N DESCRIPTION NO P N DESCRIPTION 1 11 00912 00 1 4 20 Nylon Lock Nut 5 1 13511 26 Overflow Gasket 2 1 01307 00 Scrap Trap Flange Nut 00914 00 1 4 20 x 3 4 Hex Head Bolt co 2 3 1 01308 00 Scrap Trap Flange Gasket 1 13512 00 Scrap Trap Adaptor 1 4 1 13512 10 Scrap Trap Adaptor Flange 01560 00 Scrap Trap Freestanding Not Supplied MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 11 Getting Started 2 3 8 Field Installed Accessories Installation of the accessory chemical pumps must be performed by qualified personnel 2 3 8 1 Chemical Dispensers 1 Checkvalves should be installed directly at the mixing chamber coupling There are two 1 8 FPT mounting holes provided which will position the checkvalves parallel to the machine avoiding any chemicals from dripping onto the stainless steel should a leak develop Simply remove the plug from the mounting hole and install the checkvalve be sure to use a proper sealing compound or Teflon tape on the threads NOTE There are two mounting holes provided on the mixing chamber coupling one for rinse
12. IONS DEPTH WIDTH HEIGHT STANDARD TABLE HEIGHT MAX CLEARANCE FOR DISHES STRANDARD RACKS 25 1 8 44 55 1 2 56 1 2 32 2 adjusts to 34 19 19 34 x 19 3 ELECTRICAL RATING VOLTS PHASE AMPS 208 1 64 240 1 71 208 3 36 240 3 40 HEATER 10 kW SHIPPING WEIGHT APPROXIMATE 600 MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 2 Getting Started DISHMACHINES 2 Getting Started 2 1 Introduction to CMA 44 The CMA 44 is designed to give maximum cleaning in 44 inches It represents the cleaning power of machines twice its length The curtains incorporated in the machine minimize transfer from tank to tank during the wash and sanitizing procedures Energy costs for running the CMA 44 have been greatly reduced by the introduction of stage washing This design allows the heavy food soil to be removed in the first station which provides a relatively clean dish before it reaches the wash stage in the center tank The supply water to the CMA 44L must be a minimum of 140 F while the CMA 44H requires two supply lines one at a minimum water temperature of 180 F for RINSE and the other at a minimum temperature of 140 F for FILL Either model requires the supply water to be provided at 24 PSI Pounds per Square Inch minimum with 6 GPM Gallons Per Minute flow rate and 200 GPH Gallons Per Hour recovery rate The pipe supplying the water must be 3
13. Lines to the buckets are color coded Lessee s service responsibility shall be limited to its initial orientation delivery of chemicals adjustment of chemical injection system and replacement of parts found to be worn or defective MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 22 Electrical Diagrams 5 Electrical Diagram SdWW 1 0339X3 LON LSNN 213 STOULNOD SdWNd TYNNIHOI SINAIA YISN JO OVOT GINIGWOD S VOJ HOLIVINOI TOHLNOS HOLOM HOd TYNDIS ONV SNOLLIFNNOS HJOFIA LNIDUALIG F WAWIXWH zH09 AOEZ 902 HINHOASNVAL 2 SSVTI GFLSIT JO A Vid OL LIFNNOI E JALOV S JISNIY TYNIA NAHM SI EFMOdA BSNIWINVS Z NOLLIFNNOI HOLIMS FTEVL TYNOLLGO YIAN FAONIU SILON HOLIMS HOLMS dll 3SNIM HOUAS INTA aoo HOLIMS LadVS H LIMS ditt Ayvis 71949 YOLIVINOO HOLOVYLNOO q431lVIH Vu WOJ YOLIVINOD TOULNOD YOLOW NYS YOA TYNDIS AOZE 2 asna MOIS 10 2 80 olne OVA 082 erza VINO IQON JAM VINI Page 23 MODEL CMA 44 Installation 8 Operation Manual Rev 2 15 10 18 07 Electrical Diagrams 6 Electrical Diagram Old Models SAWY S i LON ISAY 913 STOULNOS NYS Sd INd TYDIWIHD STOLAFG YISN JO AVOT GINIGHMOD 9 NOLLA
14. O n TNOLNV HLM ATNO 1 385308 5 YOLIVINOD POHLNOS HOLOM 04 TYNDIS ONY SNOLLIANNOD 1NI9Y3130 7 0014 WNWIXYW 2 09 2 802 HAMYOISNVUYL Z 55070 03151140 OL AINO LIANNOD E BALLS 51 JISNIY TVMLd NIHM S HIMOA ISNIMINVS 2 NOLLDINNOS HOLIMS 31871 TYNOLLAO b S3LON 1 HOLMS dit 1 31949 208 HOLIVINOI HOAFANOS 99EZION LILON WOJ YOLIVINOD JOINOD YOLOW YOd TYNDIS AO22 JVA 08Z YINO IAOW INVA VIG IAIM li ww ww we we pe ay P ee ee am mm mm mm TWNOLLdO 4 HJLIMS Ai3dVS Hoo0 HOLIMS 17073 HOLIVLNOO YILVIH 2 asna NOIS _SANIHSVWHSIC_ Page 24 MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07
15. ash Tank Temperatur sisinio iiini nin e E E E RAS 14 3 2 Beginning associen ei n aep a seeds cosets EERE 15 3 2 1 Chemical DISPONSING ARE 16 3 2 1 1 Low Temperature Applications 16 3 3 Regular Service and Maintenance Checklist cc ccessssssecseeeecseeeeceseceessecaeesecneeeessaeeeeeaecaeeseeneees 17 BAL QUICK service BUS ces has skika Neve FER ta a li 19 3 5 Trouble Bl r 20 4 44 CUSTOMER NOTICE ee 21 5 ELECTRICAL DIAGRAM ee 29 6 ELECTRICAL DIAGRAM OLD MODELS RN 24 www cmadishmachines com 1 Specifications 1 1 CMA 44 CMA 44 CMA 44 I ae WATER CONSUMPTION PER RACK FINAL RINSE PER HOUR FINAL RINSE 8 GAL 192 GAL 94 GAL 192 GAL CONVEYOR SPEED FEET PER MINUTE 6 75 5 7 OPERATING CAPACITY RACKS PER HOUR NSF rated 242 205 OPERATING TEMPERATURE WASH MIN FINAL RINSE MIN 140 150 F 140 150 150 160 F 180 195 F WATER REQUIREMENTS INLET TEMPERATURE MIN WATER INLET SIZE FINAL RINSE SIZE DRAIN SIZE FINAL RINSE PRESSURE 140 F 180 F 3 4 1 2 20 PSI 5 5 HOLDING TANK CAPACITY 16 GAL PUMP CAPACITY ALL PUMPS 52 GPM each MOTORS WASH PUMP 2 CONVEYOR 1 HP 1 3 HP DIMENS
16. at the outer covering does not freeze up Check the conveyor system Make sure the complete system is running smoothly Send two or three racks through the machine Check the scrap overflow While the racks are running through the machine look under the machine for any drips or leaks coming from the machine or pump seals Send a rack through the machine and check if the 60 second off delay is operating properly If the relay is working properly the machine will shut off approximately 60 seconds after the cycle start trip switch is de activated Send a rack through and check if the cycle start trip switch is operating properly This trip switch is located on the pre wash end of the machine and is activated by sliding a dish rack into the machine Using an all purpose cleaner or stainless steel polish clean up the outside of the machine to keep it looking nice Once this is done fill out a service report and take it to the manager MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 18 Operation 3 4 Quick service guide MODELS CMA 44 66 CONVEYOR S TECHNICAL ISSUE CAUSE SOLUTION Continuously cycles Manual auto switch in MANUAL mode or faulty Turn switch to AU7O position or replace Conveyer timer faulty Replace timer P N 13418 85 Final rinse does not come on Faulty tilt micro switch Replace micro switch P N 00411 00 Micro switch cam out of adjustment Adj
17. ater Check and replace P N 13463 10 Check and replace P N 13003 50 Check and replace P N 13417 77 Low or no pressure at final rinse arm Not adjusted or faulty pressure regulator Adjust 20psi or replace regulator P N 13602 45 Clogged rinse arm jets Clean rinse arm jets Faulty water solenoid Check and replace solenoid P N 00738 15 No pressure at wash arms Clogged manifold system Clogged spray jets Motor rotation wrong direction Check and clean Check and clean See wiring instruction on motor for proper rotation Debris stuck in pump cover damaged impeller MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Check and clean replace impeller P N 03222 85 Page 19 Operation 3 5 Trouble Shooting PROBLEM LIKELY CAUSE SOLUTION Pre wash power wash motor inoperative Bad motor or capacitor Faulty contactor Replace defective motor Replace contactor Machine inoperative Fuse is burned out Replace fuse Table limit switch Remove dish rack at switch Defective door reed switch Replace reed switch Defective start reed switch Replace reed switch Defective auto manual switch Replace switch Defective 60 Sec Timer Replace timer Machine runs continuously Defective 60 Sec Timer or settings Replace timer or change settings Contactor stuck Replace contactor Heater no heat Float switch
18. ator via the overflow If any The dishtable must slant toward the water is allowed to discharge by other means the conveyor tanks conveyor to prevent loss of water will drain If the tanks drain there will be substantial loss in spray arm pressure and dishes and utensils will not be cleaned and sanitized properly 12 3 03 MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 21 Customer Notice TIPS TO SAVE A SERVICE CHARGE If the Lessee of this equipment initiates a service call and it is subsequently determined that the problem does not relate to part failure or out of chemicals there will be a minimum service charge for a service person to respond It is recommended that you check the following items before initiating a service call Vv WV Circuit breaker position Should be ON Clogged drains at any point in drain line Lack of soft water check salt level in brine tank Lack of hot water due to valves shut off or incorrect thermostat settings Failure of equipment unrelated to the machine Abuse to equipment or failure to perform minimum cleaning requirements as outlined at time of installation a Rinse and wash arm tips clean and free of debris b Strainer trays clean and free of debris c Water tank drains clean and free of debris Trip switch blocked or held from free movement due to a lodged utensil or dish Lines to chemical buckets found in wrong containers or empty
19. chemical and one for sanitizer chemical but only one is needed with the CMA 44H for rinse chemical only 2 Connect only to the primary side of the Listed Class 2 Transformer 208 230 VAC 60 Hz 100 VA maximum load 2 3 8 2 Hood Fan Motor TERMINAL BLOCK DETERGENT SIGNAL 220 volts AC FAN CONTACTOR WIRES FROM THE POWER SOURCE WIRES TO THE FAN MOTOR 220 VAC OR 110 VAC SUPPLIED BY ELECTRICIAN 2 3 9 CMA 44 Heater The 10kW heater located in the wash final rinse tank has an independent power switch which needs to be activated when the machine is ready for operation As a safety precaution if the wash tank is drained while the heater is left on the thermostat receives a signal to turn off the heater from a float switch located in the rinse end of the tank NOTE The heater switch should always be turned off when the machine is not in operation Electrical and plumbing connections must be made by a qualified person who will comply with all available Federal State and Local Health Electrical Plumbing and Safety codes MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 12 Getting Started 2 4 Safety Tips for the CMA 44 DANGER CAUTION CAUTION CAUTION CAUTION Always turn off the circuit breaker at the wall when working on this dishmachine Even with the machine s power switch off there is a live connection coming to the switch
20. e 14 20 X 1 trusshead bolts 1 4 SS Flat Washers 174 20 Nylon Lock Nuts provided 3 Secure the scrap trap holder to the dishmachine using the four 14 20 X 2 Hex Head Bolts Ya SS Flat Washers and 14 20 Nylon Lock Nuts provided 4 Set the scrap trap body with the scrap trap drawer inserted into position on the scrap trap holder 5 Attach the drain as specified in section 2 3 2 Plumbing MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 8 Getting Started 2 3 5 Pump Impeller Note Figure 2 2 5 Installation When installing the water pump impeller the Nylon Lock Nut indicated by the arrow in Figure 2 2 5 must be in place to prevent the impeller from spinning off of the shaft and damaging the motor Removal The Nylon Lock Nut indicated by the arrow in Figure 2 2 5 must be removed before attempting to remove the water pump impeller MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 9 Getting Started 2 3 6 Optional Hood Adapter Set of Two An optional Hood Adapter set P N 13901 82 is available The dimensions for proper installation are given below Measure Vents 53 14 gt 4 x 16 MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 10 Getting Started 2 3 7 Optional Freestanding Scrap Trap and Adaptor Kit The optional Freestanding Scrap Trap P N 01560 00 and Adaptor Kit P N 1
21. in clamps mounts onto the dirty end of the machine Next mount the scrap tray assembly and overflow chute into position see section 2 3 4 Scrap Tray Assembly and Overflow Chute Installation All of the spray arms should be inserted and in place over the wash tank compartments There are a total of four curtains used in the CMA 44 two are long narrow two are short wide The two long narrow curtains have shorter rods than the other two curtains The short rods hold the curtains at the entrance and exit of the machine The sketch below lists curtain positions 1 through 4 CMA 44 2 O 1 4 SHORT WIDE A LONG NARROW CURTAIN LONG NARROW CURTAIN DISH FLOW gt DISHMACHINE FRONT VIEW MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 4 Getting Started 2 3 Receiving and Installation Old Models When you receive your new CMA 44 complete the assembly by installing the scrap tray assembly with its overflow chute the two wrapper shields and the curtain rods which are shipped inside the machine After the box has been removed from the machine remove the left and right stainless steel wrapper shields and bolt them in place with the nuts and bolts provided The wrapper shield with the extra curtain clamps mounts onto the dirty end of the machine Next mount the scrap tray assembly and overflow chute into
22. intaining wash tank temperature minimize the vent hood openings by closing off the dampers Be sure to place the dishes correctly If they become dislodged they could interfere with the trip switch lever and interrupt the operation of the machine RACK TRAVEL gt MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 15 Operation 5 Atthe end ofthe shift and after heavy periods of accumulation clean the three strainer trays inside the machine STRAINER TRAY Also at the end of each shift remove and clean the six spray arms Then reinstall them into the machine SPRAY ARM Also when water becomes heavily soiled drain the tanks and refill the machine 6 Check chemical buckets Make sure there is an adequate supply of detergent rinse aid and CMA 44L only sanitizer Also verify that the pickup line is inserted into the correct bucket 7 Slide in a dish rack to activate the cycle start trip switch on the pre wash end of the machine The 60 second time delay off relay will hold the machine in the run mode for 60 seconds after a rack releases the cycle start switch and then shut off This time delay relay prevents the machine from continuing to run when a dish rack is not in the machine 3 2 1 Chemical Dispensing The rinse and sanitizing agents are not injected during the initial fill stage They are injected into the final rinse make up water when the final rinse trip switch is activated
23. ne should be clean and shiny no dull look or buildup of white lime scale b Check the condition of the strainer trays for excessive garbage The machine operator should be cleaning the machine explain proper cleaning procedures c Open the drains and check to make sure they are all working properly 3 Once the machine has drained remove both end curtains and remove all the strainer trays from the machine a Check all spray arms and jets clean as necessary Explain cleaning procedures to the operators b Check the drain openings making sure they are free and clear of debris 4 Close the drains turn the power on and fill the machine a Check the fill vacuum breaker for leaks b This is the time to check the water hardness Check the water at the fill while it is coming into the machine c Using a rod or something long to avoid contact with the rinse water actuate the final rinse trip switch and observe the spray pattern on the final rinse jets It is easier to see while the pressure is lower If you have any clogged rinse jets clean them using a paper clip or similar wire 5 Verify that the heater is working If the temperature is below 140 check the thermostat setting Also check that the heater contactor has activated toggle the heater switch and listen for the contactor pulling in and dropping out Check that the float switch is working properly this will also cause the heater contactor to pull in and drop
24. nstall and set up the machine for use Requirements are given for plumbing wiring and space considerations These attributes of the machine are always taken into consideration by our well trained sales representatives prior to the order being placed In the manual additional installation guidance is given to ensure the machine can run at optimum conditions The Operation Section of the manual may be used for instruction and procedures when required We make this portion of the manual easy to understand so that all levels of operators may be able to read and comprehend the operation of the machine The function of the machine itself is mostly automatic and takes little training to put into full operation The Operation Section also includes diagnostic considerations for the machine when problems occur We are committed to providing the best machines and customer service in the food industry and your feedback is welcome MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 3 Getting Started 2 2 Receiving and Installation When you receive your new CMA 44 complete the assembly by installing the scrap tray assembly with its overflow chute the two wrapper shields and the curtain rods which are shipped inside the machine After the box has been removed from the machine remove the left and right stainless steel wrapper shields and bolt them in place with the nuts and bolts provided The wrapper shield with the extra curta
25. ove the desired set point and then carefully bring it down to the correct pressure 3 1 4 Wash Tank Temperature The wash tank temperature for the CMA 44 is set at the factory Should you ever find a need to adjust it after replacement of the thermostat for example simply perform steps 1 through 4 in section 3 2 Beginning Operation MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 14 Operation Beginning Operation To run the dishmachine perform the following steps Close both drains valve handles in vertical position a CLOSE CLOSE Turn on the power to the dishmachine The machine will begin its adjustable timed auto fill The float when sensing adequate water level energizes an ice cube relay which will allow power to go to the heater while the door is closed and the water temperature is below the thermostat setting The temperature of the water in the tank should be 140 F 150 F The Tank heater will maintain a minimum temperature of 140 F if the final rinse is providing 140 F 150 F at all times CMA 44L 150 F minimum will be maintained if the final rinse is 180 F 195 F CMA 44H If the thermostat located behind the stainless steel cover on the final rinse side of the machine should need adjustment there is a thermostat adjustment access hole located on the cover Tip If you are having difficulty ma
26. perly re fill the Dishmachine 3 1 2 Auto Fill Timer Old Models When Auto Fill is activated the machine should fill until it begins to overflow into the scrap tray at which point it should stop filling If necessary adjust the time set on the Auto Fill Timer to allow an appropriate amount of water flow to properly fill the Dishmachine See Section 5 2 2 Control Box Assembly Item 3 Note With the Auto Fill option there are two timers in the control box The Auto Fill Timer is in the upper right corner of the control box Users note f at any time less than a full Auto Fill cycle is desired the Auto Fill can be interrupted stopped by turning off the power to the machine The machine will resume normal operation upon restoring power without continuing the Auto Fill cycle 3 1 3 Rinse Pressure Regulator The CMA 44 requires a supply water pressure of 24 PSI minimum The pressure is then reduced by the supply water regulator Use the following procedure to adjust the rinse pressure to 20 PSI 1 Close the door on the machine 2 Turn the Power switch to the ON position 3 Using arod or something long to avoid contact with the rinse water actuate the final rinse trip switch this activates the water solenoid With the rinse water flowing adjust the pressure regulator until the gauge reads 20 PSI Adjustment tip Always adjust down when setting this pressure regulator In other words intentionally raise the pressure ab
27. position see section 2 3 4 Scrap Tray Assembly and Overflow Chute Installation All of the spray arms should be inserted and in place over the wash tank compartments There are a total of seven curtains used in the CMA 44 two are long narrow four are long wide and one is short The two long narrow curtains and the one short curtain have shorter rods than the other four long wide curtains The short rods hold the curtains at the entrance and exit of the machine The sketch below lists curtain positions 1 through 6 In this case it represents a flow from left to right Reverse the sequence for right to left machines If the dish flow is from left to right the proper sequence for the placement of the curtains would be long narrow curtain in the first position short curtain in the second position two short wide curtains in the third position two short wide curtains in the fourth position and a long narrow curtain in the sixth position The only curtain change to reverse the flow of dishes is the short curtain at position 2 is changed to position 5 CMA 44 31 0 O 4 CURTAINS 5 6 SHORT a WIDE f LONG NARROW CURTAIN LONG NARROW SHORT CURTAIN CURTAIN DISH FLOW gt DISHMACHINE FRONT VIEW MODEL CMA 44 Installation amp Operation Manual Rev 2 15 10 18 07 Page 5 Getting Started 2 3 1 Electrical A 3 phase 208 240 volt AC
28. ust cam Faulty rinse solenoid valve Replace diaphragm or coil P N 00738 15 Does not run Power disrupted Check wall breaker switch Faulty table limit switch Check and replace P N 13827 10 Faulty door reed switch Check and replace P N 00557 30 Burnt internal glass fuse Check and replace P N 13403 26 Faulty power shut off switch Check and replace P N 00421 83 Faulty main contactor Check and replace P N 13003 50 Losing water Machine is not level Level machine using leg adjustments Dishtable slants away from dishmachine loosing water down quick drain on table Slant table to carry excess water towards machine tank plumb quick drain back to machine above water line Oil coming out of conveyor motor Broken shaft seal in gear box Replace gear box P N 13504 00 OR 12 Conveyor cam bearing destroyed Wrong conveyor motor rotation Replace bearing check and correct conveyor motor rotation P N 13507 50 Machine only runs in manual mode Heater does not work Faulty reed switch at the dishmacine entrance Check and replace P N 00557 56 Faulty conveyor timer Check and replace P N 13418 85 Faulty manual auto toggle switch Faulty heater switch Check and replace P N 13003 70 Check and replace P N 00421 87 Faulty heater thermostat Check and replace P N 13417 85 Faulty heater float switch Faulty heater contactor Faulty he
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