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CMA Dishmachines CMA-66 manual

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Table of contents for the manual

  • Page 1

    MODEL CMA-66 Installation & Operation Rev 1.06 800-854-6417 FAX 714-895-2141 CMA DISHMACHINES 12700 KNOTT AVENUE GARDEN GROVE, CALIFORNIA 92841 www.cmadishmachines.com[...]

  • Page 2

    Table of Contents CMA-66 1. SPECIFICATIONS ................................................................................................. 2 1.1 CMA-66 .......................................................................................................................................... 2 2. GETTING STARTED ....................................[...]

  • Page 3

    1. S pecifications CMA-66 L.T. CMA-66 H.T. 1.1 CMA-66 WATER CONSUMPTION PER RACK .8 GAL. .94 GAL. PER HOUR 192 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) 140° - 150° F 150° - 160° F FINAL RINSE (MIN) 140° - 150° F 180° - 195° F WATER REQUIREMEN[...]

  • Page 4

    Getting Started 2. Getting S t arted 2.1. Introduction to CMA-66 The CMA-66 is designed to give maximum cleaning in 66 inches. It represents the cleaning power of machines twice i ts length. The curtains incorporate d in the machine minimize tra nsfer from tank to tank during the wash and sanitizing pro c edures. Energy costs for running the CMA-6 [...]

  • Page 5

    Getting Started 2.2. Receiving and Installation When you receive your new CMA-66, complete the assembly by installing the scrap tray assembly with its overflow chut e, the two wrapper shi elds and the curtain ro ds, which are shipped inside the machine. After the box has b een remo ved from the machine, remove the left and right stainless steel wra[...]

  • Page 6

    Getting Started 2.2.1. Electrical * A 3-phase 208-240 volt AC, 60 Hz dedicated circuit should be used to supply electri cal energy to the CMA-66 dishwasher (see specification sheet pag e 2). Connect the wire that has the highest voltage (stinger lead) to L-2 on the power blo ck. Power lead wire s (L1, L 2 and L3) used for the CMA-66 at installation[...]

  • Page 7

    Getting Started P/N 13505.10 Figure 2.2.3 b 4. On a 3-phase machine the water pump motors are al so 3-phase and, dependin g on which terminal each phase is co nne cted to, the motor can rotate in either direction. Check the direction of rotation by removing the dust cap on the ba ck of the motor. The motors must turn clockwi se loo kin g at the sha[...]

  • Page 8

    Getting Started 2.2.4. Scrap Tra y Assembl y and Overflow Chute Installation The scrap tray assembly and overflow ch ute, whi ch came packaged inside the machine, can easily be installed by executing the foll owing steps: Figure 2.2.4 below illustrates the assembly as it would appear for a Left-to-R ight machine – a Right-to- Left machine would s[...]

  • Page 9

    Getting Started 2.2.5. Pump Impeller Note Figure 2.2.5 Installation: When installing the water pump imp eller the Nylon Lock Nut indicated by the arro w in Fig ure 2.2.5 must be in place to prevent the impeller from spinn ing off of the shaft and damaging the motor. Removal: The Nylon Lock Nut indicated by the arrow i n Figure 2.2.5 must be removed[...]

  • Page 10

    Getting Started 2.2.6. Optional Hood Adapter (set of two) An optional Hood Adapter set (P/N 13901.82) i s available. The di mensions for proper installation are given belo w. 75-½" 9-½" 65" Leg Adj 66” MODEL CMA-66 Installatio n & Operation Manual Rev. 1.06 01/11/05 Page 9[...]

  • Page 11

    Getting Started 2.2.7. Optional Freestanding Scrap Trap and Adaptor Kit The optional Freestandi ng Scrap Trap (P/N 0156 0.00) and Adaptor Kit (P/N 13512.00) are available for i nstallations where the space is insufficient t o accommodate the standard side -mounted scrap trap or wh ere drain acce ss is easier by locating the scrap trap some distance[...]

  • Page 12

    Getting Started 2.2.8. Optional “Auto-Fill” With this function a single press of the AU TO FILL switch fills the machine to the proper level. If your Dishmachine did not come with t he Auto-Fill option alre ady installed, an Auto-Fill kit is available. Call (800) 854-6417 and order Kit #134 68.00 Kit #13468.00 Includes: ITEM QTY P/N DESCRIPTION[...]

  • Page 13

    Getting Started Heater Contactor + + + + + + + + + + + + Coil Terminal (Red) Coil Termi nal (Blue) Main Contactor + + + + + + + + + + + + + + Blue Violet Violet Red Violet Violet Blue/ Yel Blue /Yel Orange Orange Blue Red Red 91 0 11 1 23 45 6 7 8 To coil terminal ( blue ) of main contacto r To solenoid } To Auto Fill switch (Rocker Switch) Figure [...]

  • Page 14

    Getting Started 5. Conne ct the blue wi re you removed from the Main Contactor coil termin al to the #250 Piggyback Connector and conne ct the blue wire from terminal 1 0 of the Timer Relay Socket to the same #250 Piggyback Con nector on the coil terminal. See Figure 1 and Figure 2 on the previous page. 6. Remove the red wire from t he Main Contact[...]

  • Page 15

    Getting Started 2.2.9. Field Installed Accessories Installation of the accessory chemi cal pumps must be pe rformed by qualified personnel. 2.2.9.1. Chemical Dispensers 1. Chec kvalves should be installed dire ctly at the mixing cham be r coupling. There are two 1/8” FPT mounting hole s provided, which will p ositio n the checkvalves parallel to [...]

  • Page 16

    Getting Started 2.3. Safety Tips for the CMA-66 DA NGE R: Always turn off the circuit breaker at the wall when working on this dishmachine. Even with the machine’s po wer switch off there is a live connection coming to the switch, so turn off the circuit breaker a s well. CAUTION: Do not get in the path of the conveyor rocker arm or the co nveyor[...]

  • Page 17

    Operation 3. Operation 3.1. Initial Setup 3.1.1. Optional Auto Fill Timer When Auto Fill is activated, the machine shou ld 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[...]

  • Page 18

    Operation 3.2. Beginning Operation To run the dishmachine, perform the following step s: 1. Close both d r ains (valve h andles in vertical position). CLOSE CLOSE 2. Turn on the p ower to the dishmachine. 3. Open the fill-valve and fill the machine un til it overflows out of the pre-wash tank into the scrap tray or, if the Auto Fill option is prese[...]

  • Page 19

    Operation RA CK TRA VEL 6. At the end of the shift and after heavy period s of accumulation, clean the three strainer trays inside the machine. Also, at the end of each shift, remove and clean the six spray arms. Then reinstall them into the machine. Also, when water becomes heavily soiled, drain the ta nks and refill the machine. STRAINER TRA Y SP[...]

  • Page 20

    Operation The sanitizing pump operates when the fresh wat er enters the ma chine during final rinse. The water is treated at 50 PPM (parts per million). The pressure regulator is adjusted to 20-PSI. This allows 0.8 (CMA-6 6L), or 0.94 (CMA-66H) gallons of water to enter the machine each time a ra ck is washed. It is recommended that the 5-1/2% c he[...]

  • Page 21

    Operation 6. Replace all the strainer trays into their proper position and fill the machine. 7. Place a rack into the machine and observe the spray pattern of the pre-wa sh, the wash, and the final rinse. a. Check the titration of the wash tank at this point. b. While the rack is in the fin al rinse, chec k for 50 PPM resid ual chlorine in the fina[...]

  • Page 22

    Operation 3.4. Quick service guide MODEL CMA-66 Installatio n & Operation Manual Rev. 1.06 01/11/05 Page 21 MODELS: CMA 44/ 66 CONVEYOR (S) TECHNICA L ISSUE CAUSE SOLUTION Continuously cyc les Manual/auto switch in MANUAL mode or faulty Turn switch to AUTO position or replace Conveyer t imer faulty Replace timer, P/N 13418. 85 Faulty tilt micro[...]

  • Page 23

    Operation 3.5. Trouble Shooting PROBLEM LIKELY CAUSE SOLUTION Pre-wash/power wash motor inoperative Bad motor or capacitor Faulty contactor Replace defect ive motor Replace contactor Fuse is burned out Replace fuse Table limit switch Remove dish rack at switch Defective door reed switch Replace reed switch Defective start r eed switch Replace reed [...]

  • Page 24

    4. CMA-66 Customer Notice MODEL CMA-66 Installatio n & Operation Manua l Rev. 1.06 01/11/05 Page 23[...]

  • Page 25

    Operation TIPS TO SAVE A SERVICE CHARGE If the Lessee of this equipment initiates a service call and it is sub sequently determined that the problem does not relate to part failure or out of chemical s, there will be a mini mum service ch arge for a service person to respond. It is recommended that you check the foll owing items before initiating a[...]

  • Page 26

    Operation MODEL CMA-66 Installatio n & Operation Manual Rev. 1.06 01/11/05 Page 25 5. Electrical Diagram T 1 T 2 L 1 L 2 L 3 T 3 P U M P M O T O R T 1 T 2 L 1 L 2 L 3 T 3 P U M P M O T O R T 1 T 2 L 1 L 2 L 3 T 3 c o n v e y o r c o n t a c t o r F L O A T S W I T C H A D J . T H E R M O S T A T M A I N C O N T A C T O R H E A T E R C O N T A C[...]