CMA Dishmachines CMA-180UC Guide

www.cmadishmachines.com
MODEL CMA-180UC
INSTALLATION & OPERATION
Rev 1.16A
800-854-6417
FAX [phone]
CMA DISHMACHINES
12700 KNOTT AVENUE
GARDEN GROVE, CALIFORNIA 92841
Owner’s Manual
Keep with machine for reference

www.cmadishmachines.com
TABLE OF CONTENTS
MODEL CMA-180UC
1. SPECIFICATIONS ........................................................................................ 2
1.1. CMA-180UC......................................................................................................................... 2
1.2. CMA-180UC OPERATIONAL CYCLE...................................................................................... 3
2. GETTING STARTED..................................................................................... 5
2.1. INTRODUCTION TO CMA-180UC........................................................................................... 5
2.2. RECEIVING AND INSTALLATION.............................................................................................. 6
2.2.1. Electrical ....................................................................................................................... 6
2.2.2. Plumbing........................................................................................................................ 6
2.2.3. BETA Detergent And Rinse Dispenser (Optional)......................................................... 7
2.2.4. NOVA Detergent and Rinse Dispenser (Optional)........................................................ 8
2.2.5. Safe Ttemp Feature...................................................................................................... 10
2.2.6. Water Tempering Kit ................................................................................................... 11
2.2.7. Booster Heater Setup................................................................................................... 12
2.2.8. Installers Checklist ...................................................................................................... 12
3. OPERATION............................................................................................... 13
3.1. INITIAL SETUP ...................................................................................................................... 13
3.1.1. Dema Valve and Dema Flow Disc (New Models). ...................................................... 13
3.1.2. Rinse Pressure Regulator (Old Models Prior January 2008)...................................... 13
3.1.3. Rinse and Wash Temperatures .................................................................................... 13
3.1.4. Post Instructions.......................................................................................................... 13
3.2. STARTUP PROCEDURES......................................................................................................... 13
3.3. OPERATING AND CLEANING INSTRUCTIONS ......................................................................... 14
3.4. PREVENTIVE MAINTENANCE CHART .................................................................................... 15
3.5. QUICK SERVICE GUIDE.......................................................................................................... 16
3.6. TROUBLESHOOTING.............................................................................................................. 17
4. PARTS KIT ................................................................................................. 20
4.1. INITIAL PARTS KIT (P/N 1100.66)........................................................................................ 20
4.2. DRAIN PUMP ........................................................................................................................ 21
4.3. DRAIN PUMP REMOVAL INSTRUCTIONS ............................................................................... 22
5. CUSTOMER NOTICE ................................................................................. 23
6. ELECTRICAL DIAGRAM............................................................................ 24

MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.16A Page 2
1. Specifications
1.1. CMA-180UC
WATER CONSUMPTION
PER RACK .75 GAL. (2.83 L)
PER HOUR 17.9 GAL. (67.6 L)
OPERATING CYCLE
WASH TIME-SEC 94 94
RINSE TIME-SEC 16 16
DWELL TIME-SEC 10 10
TOTAL CYCLE 2 MIN. 2 MIN.
OPERATING CAPACITY
RACKS PER HOUR 30 30
WASH TANK CAPACITY 2.5 GAL. (9.46 L)
PUMP CAPACITY 38 GPM (144 LPM)
WATER REQUIREMENTS
REQUIRED MINIMUM TEMP. * 110°F (43°C)
RECOMMENDED TEMP. ** 140°F (60°C)
WATER INLET ½” 1.27cm
DRAIN CONNECTION 1” 2.54cm
RINSE PRESSURE SET 20 PSI±5 PSI 1.41 kg/cm2
CYCLE TEMPERATURES
WASH-°F 150°F -160°F (65.5°C/71°C)
RINSE -°F 180°F -195°F (82°C/90°C)
FRAME DIMENSIONS
DEPTH 25” (63.5 cm)
WIDTH 24” (60.96 cm)
HEIGHT 33 ¼” (84.45 cm)
MAX CLEARANCE FOR DISHES 14.5” (36.8 cm)
ELECTRICAL RATING* 208 VOLTS
1 PH—60 Hz 230 VOLTS 1 PH—60 Hz
33 AMPS 35 AMPS
BOOSTER HEATER 5.3 kW 6.5 kW
WASH PUMP MOTOR ¾ HP ¾ HP
THIS SYSTEM REQUIRES THREE POWER WIRES, WHICH INCLUDES A
CURRENT CARRYING NEUTRAL. AN ADDITIONAL FOURTH WIRE MUST BE
PROVIDED FOR MACHINE GROUND.
SHIPPING WEIGHT 234# (106 kg)
* For machines having "SAFETY TEMP" feature. ** For faster heat recovery.
METRIC
EQUIVALENT

MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.16A Page 3
1.2. CMA-180UC Operational Cycle
The CMA-180UC Operational Cycle has a total cycle time of 2 minutes (120 seconds). The
Timing Diagram and the steps listed below detail the individual functions that are executed
during each Operational Cycle.
Seconds: 0 10 20 30 40 50 60 70 80 90 100 110 120
1. With the machine powered up toggling the START switch begins a cycle.
a) Toggling the START switch energizes both the Cam Timer motor and the Instant Start
Relay. The Instant Start Relay latches ON the power to the Cam Timer motor so that
the START switch can be released a moment after it has been toggled without the Cam
Timer motor losing power.
b) After about 1.5 seconds the Cam Timer’s first cam—the Cam Timer Motor Cam—
latches ON the power to the Cam Timer motor and drops out the Instant Start Relay.
The Cam Timer motor continues to run for a total of 2 minutes, at which time it
switches OFF—resetting the Cam Timer—and waits for the next START command.
2. The Cam Timer’s third cam controls the Wash Pump. The Wash Pump comes ON about 3
seconds into the Operational Cycle and continues to run for 94 seconds. This 94-second
period is the Wash Cycle.
3. At the same time that the Wash Pump comes ON the Cam Timer’s fourth cam powers ON
the Optional Drain Pump—if one is present—and keeps it running for about 7 seconds
before powering OFF. This cam turns ON again midway through the Rinse Cycle and
stays ON for 10 seconds, turning OFF 2 seconds after the Rinse Cycle has completed.
4. About 3 seconds after the Wash Cycle has completed the Cam Timer’s second cam, which
controls the Rinse Cycle, turns ON—energizing the Water Solenoid—and stays ON for 16
seconds. This 16-second period is the Rinse Cycle.
Instant
Start Relay
Cam Timer
Motor Cam
Rinse Cycle
Cam
Wash Cycle
Cam
Optional Drain
Pump Cam
Safe-T-
Temp Cam

MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.16A Page 4
5. When the cam timer assembly approaches the final rinse portion of the cycle, the “Safe-T-
Temp” sixth micro switch will pause cam timer assembly if the booster heater has not
reached 180 degrees. Machine will remain in wash cycle mode until 180-degree rinse
temperature is reached, and at this time the cam timer will advance automatically into the
rinse cycle and dispense 180 degrees rinse water over the dishes.