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Owner’s Manual
Keep with machine for reference
MODEL CMA-180UC
INSTALLATION & OPERATION
Rev 1.15
CMA DISHMACHINES
12700 KNOTT AVENUE
GARDEN GROVE, CALIFORNIA 92841
800-854-6417
FAX 714-895-2141
www.cmadishmachines.com
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TABLE OF CONTENTS MODEL CMA-180UC 1. SPECIFICATIONS ........................................................................................ 2 1.1. CMA-180UC ......................................................................................................................... 2 1.2. CMA-180UC OPERATIONAL CYCLE...................................................................................... 3 2. GETTING STARTED..........................................................................
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1. Specifications METRIC EQUIVALENT 1.1. CMA-180UC WATER CONSUMPTION PER RACK .86 GAL. (3.25 L) PER HOUR 20.6 GAL. (77.8 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 140°F (60°C) WATER INLET ½” 1.27cm DRAIN CONNECTION 1” 2.54cm 2 RINSE PRESSURE SET 20 PSI ±5 PSI 1.41 kg/cm CYCLE T
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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 Instant Start Relay Cam Timer Motor Cam
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Getting Started 2. Getting Started 2.1. Introduction to CMA-180UC The CMA-180UC is a hot water sanitizing, single rack, under-counter dishmachine. It is a standalone machine featuring a self-contained booster heater. The only external connections necessary are power supply, water supply, drainpipe, and optional chemical dispensers. The machine uses re-circulated wash water and fresh water final-rinse. Operation of the CMA-180UC is extremely user friendly. To initially fill the machin
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2.2. Receiving and Installation The dishwasher is shipped from the factory in a corrugated box on a wooden pallet. The installation guidelines give a systematic procedure for setting up the machine. Start by removing the packaging material. Unwrap the machine and check for the following component parts: The Wash Tank Scrap Screen is shipped inside the wash cavity of the machine. This screen must be in place during operation. It has been designed to perform two basic functions: 1. Str
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1 2.2.3. NOVA Detergent and Rinse Dispenser (Optional) . The NOVA Detergent and Rinse Dispenser has its own reference manual. Familiarize yourself with the dispenser’s reference manual before proceeding with installation. 1. The NOVA dispenser is pre-wired with a multi-conductor electrical cable that is to be run through a conduit to the power block inside the control panel drawer. Use a ½” watertight conduit meeting all local and national codes. A conduit fitting is present on the b
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Brown (LIVE) wire Multi-conductor cable Rinse Signal wires (Blue terminals) Detergent Signal wires (Red terminals) Black (Main Power) Gray/Violet (Main Power Neutral) (Same terminal as rinse neutral) Note: Machine Neutral (White wires) Figure 2.2.3 Note: In Figure 2.2.3 the machine’s wire harness was left out of the back of the power block to more clearly show the dispenser wires. 2. Remove the plug from the mixing chamber located by the vacuum breaker on the back of machin
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2.2.4. Safe Ttemp Feature The CMA “SafeTtemp” feature assures the final rinse cycle is always at a consistent minimum of 180 degrees. th How it works: the “SafeTtemp” function operates off the 5 cam (labeled “SafeTtemp”) on the timer assembly. When the cam timer assembly completes the wash cycle, and approaches the final rinse portion of the cycle, the “SafeTtemp” micro switch will drop into the cam slot and pause cam timer assembly if the booster heater has not reached 180 degrees. Ma
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2.2.5. Water Tempering Kit MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.15 Page 9
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2.2.6. Booster Heater Setup The booster tank must be filled with water before the heating element is energized. For this reason the “High Limit Switch” has intentionally been activated at the factory and will require resetting before the heating element will turn on. Follow the procedure below to complete the initial installation: 1. Close the door on the machine. 2. Turn the Power switch to the "ON" position. 3. Hold the “FILL” switch in until water overflows into the scrap tray. 4.
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Operation 3. Operation 3.1. Initial Setup 3.1.1. Dema Valve and Dema Flow Disc (New Models). New Dema Valve made of stainless steel is more compatible with various water conditions. Dema Flow Disc has been placed on the exit side of the water valve. The Flow Disc reduces pressure to the standard recommended 20 PSI. 3.1.2. Rinse Pressure Regulator (Old Models Prior January 2008). The CMA-180UC requires a supply water input pressure of 24 PSI minimum. This pressure is then reduced by t
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Operation 3.3. Operating and Cleaning Instructions MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.15 Page 12
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Operation 3.4. Preventive Maintenance Chart MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.15 Page 13
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Operation 3.5. Quick service guide MODEL: CMA 180UC HIGH TEMP UNDER COUNTER TECHNICAL ISSUE CAUSE SOLUTION Pressure regulator is not set properly Set regulator to 18-20 psi Faulty rinse micro switch Replace micro switch, P/N 00411.00 Drain hose elevated too high Must be lowered to goose neck level Scrap trap over flows Obstruction in drain hose Check hose & clean Scrap exit screen Clean exit screen Faulty drain pump Replace pump, P/N 15503.00 Machine not level
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Operation 3.6. Troubleshooting PROBLEM LIKELY CAUSE SOLUTION Machine inoperative Power off at circuit breaker Reset circuit breaker Defective power switch Replace power switch P/N: 15521.50 Motor inoperative Door is open Close door Control panel is pulled out Secure control panel Defective reed switch Replace reed switch P/N: 00557.55 Defective timer assembly Replace timer assembly* P/N: 14408.80 Defective pump motor contactor Replace contactor P/N: 15504.00 Defective motor Repl
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Operation PROBLEM LIKELY CAUSE SOLUTION Low heat during operation Low incoming water temperature Turn up supply water heater (below 140° F) Insulate supply water pipe Thermostat out of adjustment Adjust thermostat Cold water mixing with supply Isolate hot water from cold water Defective heater Replace heater P/N: 15517.00 Low rinse water pressure Pressure regulator out of Adjust pressure regulator adjustment Defective pressure gauge (actual Replace pressure gauge pressure is okay)
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Operation PROBLEM LIKELY CAUSE SOLUTION Start switch requires > 1 Defective (Instant Start) ice cube Replace ice cube relay second activation to run relay P/N: 00631.00 cycle Activating fill switch does Defective drain/fill switch Replace drain/fill switch not fill machine P/N: 15522.00 Defective water solenoid valve Replace water solenoid valve P/N: 03603.10 Fill (rinse water) won’t shut Defective water solenoid valve Replace water solenoid valve off P/N: 03603.10 Defective drai
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4. Parts Kit 4.1. Initial Parts Kit (P/N 1100.66) P/N DESCRIPTION Qty 15504.00 Motor Contactor, 2-Pole 20 Amp 1 15504.50 Heater Contactor, 2-Pole 35 Amp 1 00501.00 2-Minute Timer Motor 1 00631.00 Ice Cube Relay 120 V 1 15521.00 Rocker Switch Start Momentary 1 15522.00 Rocker Switch Drain/Fill 1 15521.50 Rocker Switch Power Maintained 1 00557.55 Reed Switch 1 03623.00 1/2” Vacuum Breaker Repair Kit – Watts 1 00707.00 1/2” Water Solenoid Repair Kit – J/E 1 04103.00 L1X/L1-C Drain
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Parts Manual 4.2. Optional Drain Pump Kit ITEM NO. ITEM NO. P/N DESCRIPTION P/N DESCRIPTION NO. REQ’D NO. REQ’D 1 1 15503.00 Drain Motor Ultra Jet for CMA-180UC 6 4 03101.00 Hose Clamp 1” 2 2 00432.50 Twist Tie 7 1 15603.00 Drain Line Gooseneck 3 1 15601.10 Black Drain Hose 1" ID X 3 1/2" 8 2 03801.10 10-32 SS Nut 4 1 15601.50 Drain Hose 1" ID, 6 ft 9 2 04806.00 #10 Brass Washer 5 1 15601.60 Robber Hose 90 Deg. MODEL CMA-180UC INSTALLATION & OPERATION MANUAL Rev. 1.15 Pa
