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CMA Dishmachines CMA-44 manual

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Table of contents for the manual

  • Page 1

    www.cmadishmachines.com[...]

  • Page 2

    Table of Contents CMA-44 1. SPECIFICATIONS ................................................................................................. 2 1.1. CMA-44 .......................................................................................................................................... 2 2. GETTING STARTED ...................................[...]

  • Page 3

    1. S pecifications 1.1. CMA-44 WATER CONSUMPTION PER RACK (FINAL RINSE) .8 GAL. .94 GAL. PER HOUR (FINAL RINSE) 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 REQUI[...]

  • Page 4

    Getting Started 2. Getting S t arted 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 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-4 [...]

  • Page 5

    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 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 2.3. Receiving and Installation (Old Models) When you receive your new CMA-44, complete the assembly by installing the scrap tray assembly with its overflow 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 stainl[...]

  • Page 7

    Getting Started 2.3.1. Electrical * A 3-phase 208-240 volt AC, 60 Hz dedicated circuit should be used to supply electri cal 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 po wer terminal L2 . Power lead wires (L1, L2 and L3) used for the CMA-4[...]

  • Page 8

    Getting Started P/N 13505.12 205 RACKS ( CMA-44H ) 242 RACKS ( CMA-44L ) P/N 13505.10 OLD Models Figure 2.3.3 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 c[...]

  • Page 9

    Getting Started 2.3.4. 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 2.3.4 below illustrates the assembly as it would appear for a Left-to-R ight machine – a Right-to- Left machine would s[...]

  • Page 10

    Getting Started 2.3.5. 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 11

    Getting Started 2.3.6. 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. 53-½" 9-½" 65" Leg Adj 66” Vents Measure 4” x 16” MODEL CMA-44 Installatio n & Operation Manual Rev. 2 .15 10/18/07 Page 10[...]

  • Page 12

    Getting Started 2.3.7. 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 13

    Getting Started 2.3.8. Field Installed Accessories Installation of the accessory chemi cal pumps must be pe rformed by qualified personnel. 2.3.8.1. 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 14

    Getting Started 2.4. Safety Tips for the CMA-44 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 conveyor?[...]

  • Page 15

    Operation 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 po wer button is activated, the machine should fill until it begi ns 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 all[...]

  • Page 16

    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. T he machine will begin its (adjustable) timed auto-fill. The float when sen sing adequate water level energizes an ice cube relay, which will al[...]

  • Page 17

    Operation 5. 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 R AY AR M 6. [...]

  • Page 18

    Operation pressure regulator is adjusted to 20-PSI. This allows 0.8 (CMA-4 4L), or 0.94 (CMA-44H) gallons of water to enter the machine each time a ra ck is washed. It is recommended that the 5-1/2% c hemical solution be standardized to allow uniform dispensing of the sanitizing sol ution into the flow of rinse water as the machine operates. At thi[...]

  • Page 19

    Operation 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 final rinse. c. Observe the final rinse vacuum breaker for leaks. 8. Run a stemware or [...]

  • Page 20

    Operation 3.4. Quick service guide MODEL CMA-44 Installatio n & Operation Manual Rev. 2 .15 10/18/07 Page 19 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 micr[...]

  • Page 21

    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 22

    Customer Notice 4. CMA-44 Customer Notice MODEL CMA-44 Installatio n & Operation Manual Rev. 2 .15 10/18/07 Page 21[...]

  • Page 23

    Customer Notice 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 initia[...]

  • Page 24

    Electrical Diagrams 5. Electrical Diagram MODEL CMA-44 Installatio n & Operation Manual Rev. 2 .15 10/18/07 Page 23[...]

  • Page 25

    Electrical Diagrams 6. Electrical Diagram (Old Models) MODEL CMA-44 Installatio n & Operation Manual Rev. 2 .15 10/18/07 Page 24[...]