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MODEL CMA-180UC
SERVICE & PARTS MANUAL
Rev 1.14
C M A D I S H M A C H I N E S
1 2 7 0 0 K N O T T A V E N U E
GARDEN GROVE, CALIFORNIA 92841
8 0 0 - 8 5 4 - 6 4 1 7
F A X 7 1 4 - 8 9 5 - 2 1 4 1 www.cmadishmachines.com
1203
T
ABLE OF
C
ONTENTS
M
ODEL
CMA-180UC
1. SPECIFICATIONS ........................................................................................ 2
1.1.
CMA-180UC ......................................................................................................................... 2
1.2.
CMA-180UC O
PERATIONAL
C
YCLE
...................................................................................... 3
2. GETTING STARTED..................................................................................... 4
2.1.
I
NTRODUCTION TO
CMA-180UC ........................................................................................... 4
2.2.
R
ECEIVING AND
I
NSTALLATION
.............................................................................................. 5
2.2.1.
Electrical ....................................................................................................................... 5
2.2.2.
Plumbing........................................................................................................................ 5
2.2.3.
BETA Detergent and Rinse Dispenser (Optional) ........................................................ 5
2.2.4.
NOVA Detergent and Rinse Dispenser(Optional) ......................................................... 7
2.2.5.
Safe Ttemp Feature........................................................................................................ 9
2.2.6.
Water Tempering Kit ................................................................................................... 10
2.2.7.
Booster Heater Setup ................................................................................................... 11
2.2.8.
Installers Checklist ...................................................................................................... 11
3. OPERATION ............................................................................................... 12
3.1.
I
NITIAL
S
ETUP
...................................................................................................................... 12
3.1.1.
Rinse Pressure Regulator ............................................................................................ 12
3.1.2.
Rinse and Wash Temperatures .................................................................................... 12
3.1.3.
Post Instructions .......................................................................................................... 12
3.2.
S
TARTUP
P
ROCEDURES
......................................................................................................... 12
3.3.
O
PERATING AND
C
LEANING
I
NSTRUCTIONS
......................................................................... 13
3.4.
P
REVENTIVE
M
AINTENANCE
C
HART
.................................................................................... 14
3.5.
Q
UICK SERVICE GUIDE
.......................................................................................................... 15
3.6.
T
ROUBLESHOOTING
.............................................................................................................. 16
4. PARTS MANUAL........................................................................................ 19
4.1.
I
NITIAL
P
ARTS
K
IT
(P/N 1100.66)........................................................................................ 19
4.2.
O
PTIONAL
D
RAIN
P
UMP
K
IT
................................................................................................. 20
4.3.
O
PTIONAL
D
RAIN
P
UMP
—I
NSTALLATION
I
NSTRUCTIONS
.................................................... 21
4.4.
M
ECHANICAL
D
RAWINGS
..................................................................................................... 23
4.4.1.
Cabinet Assembly......................................................................................................... 23
4.4.2.
Door Assembly............................................................................................................. 24
4.4.3.
Electrical Tray ............................................................................................................. 25
4.4.4.
Control Panel .............................................................................................................. 26
4.4.5.
Plumbing System Assembly.......................................................................................... 27
4.4.6.
Drain System Assembly................................................................................................ 28
4.4.7.
Wash System ................................................................................................................ 29
www.cmadishmachines.com
1203
4.4.8.
Rinse System ................................................................................................................ 30
4.4.9.
Pump System Assembly................................................................................................ 31
4.4.10.
Heater Assembly .......................................................................................................... 32
4.5.
E
LECTRICAL
D
IAGRAM
......................................................................................................... 33 www.cmadishmachines.com
1203
1. Specifications
1.1. CMA-180UC
WATER CONSUMPTION
PER RACK
PER HOUR
OPERATING CYCLE
WASH TIME-SEC
RINSE TIME-SEC
DWELL TIME-SEC
TOTAL CYCLE
OPERATING CAPACITY
RACKS PER HOUR
WASH TANK CAPACITY
PUMP CAPACITY
WATER REQUIREMENTS
WATER INLET
DRAIN CONNECTION
RINSE PRESSURE SET
CYCLE TEMPERATURES
FRAME DIMENSIONS
METRIC
EQUIVALENT
.86 GAL.
20.6 GAL.
94
16
10
2 MIN.
30
2.5 GAL.
38 GPM
(3.25 L)
(77.8 L)
94
16
10
2 MIN.
30
(9.46 L)
(144 LPM)
140°F (60°C)
½”
1”
24 PSI
1.9cm
5.1cm
1.7 kg/cm
2
MAX CLEARANCE FOR DISHES
ELECTRICAL RATING*
14.5”
208 VOLTS
1 PH—60 Hz
(36.8 cm)
230 VOLTS
1 PH—60 Hz
BOOSTER HEATER
33 AMPS
5.3 kW
35 AMPS
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
APPROXIMATE
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
2
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:
80 90 100
Instant
Start Relay
Cam Timer
Motor Cam
Rinse Cycle
Cam
Wash Cycle
Cam
Optional Drain
Pump Cam
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.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
3
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 machine each day, push the switch marked “FILL”. The machine is full when water begins to flow into the scrap tray.
The booster tank heater will maintain the wash water temperature at 155°F. The booster heater will produce a minimum of 180°F final rinse water each cycle.
The supply water to the CMA-180UC must be a minimum of 140°F at 24 PSI (Pounds per Square
Inch) with a 6 GPM (Gallons Per Minute) flow rate and 60 GPH (Gallons Per Hour) recovery rate.
The pipe supplying the water must be ½” minimum. The plumbing connection is located at the
back of the machine. (See specification sheet on page 2).
The drain is a 1" barbed fitting on the back of the machine for easy attachment of your drain hose.
The machine retains the features of the standard CMA-180 Series in that it has a scrap tray 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-180UC is the first under-counter dishmachine of its kind to discharge soil from the wash tank into a scrap tray outside of the wash chamber. This feature keeps the wash water much cleaner over long periods of time. The scrap tray may be emptied on a periodic basis without interruption of the flow of work, thereby providing a much cleaner environment for the wash and rinse cycle. There are also enhancements that can be chosen
when required such as drain pump kits and other accessories. Refer to Section 4 “Parts Manual”
for the parts list and accessories available for the machine.
This manual is structured to provide a complete reference guide to the CMA-180UC. 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.
After unpacking the machine, this manual explains how to install 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, guidance is also given for installation to ensure that the machine will be able to 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.
The next section of the manual is the Parts Manual. This section has the parts lists and wiring
diagram for the machine.
We are committed to providing the best machines and customer service in the food industry and your feedback is welcome.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
4
Getting Started
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. Strain water that is circulating through the spray arms and pump assembly.
2. A basket to catch broken glass, or heavy solids that may plug the impeller.
Set the machine in place, and level from side-to-side and front-to-back.
A 50-amp, single-phase 230 volt, 60 Hz dedicated circuit should be used to supply electrical
energy to the CMA-180UC dishwasher (see specification sheet page 2). This system requires
three power wires, which include a current carrying neutral. An additional fourth wire must be provided for ground. CMA and local codes require the CMA-180UC to be hardwired using #8
AWG (90
°C) copper wire (minimum). Approximately 4-feet of ¾” flexible conduit with power leads
(L-1, L-2, Neutral and Ground) extending out of the conduit are provided for easily connecting the power at installation. The power connection must be located such that there is sufficient length of the flexible conduit remaining to permit the machine to be moved for cleaning.
The machine is equipped with a ½” NPT connection located at the lower left-hand corner (facing the back) of the machine. A 140°F water line should be plumbed to this point (see specification
sheet page 2). The water line used must be of sufficient length and flexibility to permit the
machine to be moved for cleaning.
The supply water to the CMA-180UC must be a minimum of 140°F at 24 PSI (Pounds per Square
Inch) with a 6 GPM (Gallons Per Minute) flow rate and 60 GPH (Gallons Per Hour) recovery rate.
The pipe supplying the water must be ½” minimum. The plumbing connection is located at the
back of the machine. (See specification sheet on page 2).
The CMA-180UC may be supplied with an optional drain pump for elevated drains. For floor gravity drain applications the drain pump should not be used and a good commercial grade hose needs to be connected to the discharge side of the diverter valve (drain valve) and run to the floor drain. If removing a drain pump, safe-end (insulate electrically) the white and purple wires and secure them out of the way. If a drain pump is used with a floor drain, the drain hose must rise 12 to 16” before dropping to the floor drain (to reduce any chance of the pump cavitating).
2.2.3. BETA Detergent and Rinse Dispenser (Optional)
Note: If you are installing NOVA Detergent and Rinse Dispenser follow the
instructions in Section 2.2.4.
1. A mounting plate for ½” conduit is provided on the top right-hand corner (facing
the back) of the machine. (See section 4.4 Mechanical Drawings; Cabinet
1,2
All 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-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
5
Getting Started i. Run an appropriate length of ½” conduit from your dispenser to the mounting plate where it will be secured. The conduit needs to be of sufficient length and flexibility to permit the machine to be moved for cleaning without having to disconnect any wiring. ii. Run your dispenser wires from the conduit through the enclosed area across the top of the machine and feed them through the access hole provided in the back of the control panel drawer.
2. With the machine’s power “OFF”, connect your detergent and rinse dispenser wires to the power block supplied and labeled (“DISPENSER 110V - 3 AMPS
MAX”) inside the control panel drawer. See Figures 2.2.3a, and Figure 2.2.3c.
Connect detergent wires to red terminals and rinse wires to blue terminals.
3. Remove the plug from the mixing chamber located by the vacuum breaker on the back of machine and install the rinse injection fitting (supplied with your
dispenser). See Figure 2.2.3b.
4. A 7/8" detergent injection hole is provided in the back of the wash tank. Remove
the S.S. plug and install the detergent fitting. See Section 4.4.1 Cabinet
5. The final step of installing BETA Detergent and Rinse Dispenser is titration adjustment by adjusting detergent and rinse settings. The Quick Installation
Guide supplied with the dispenser shows you how to do that.
(Dispenser wire connections)
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
6
Getting Started
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 bottom of the dispenser where the power cable exits. A mounting plate to receive the ½” conduit is provided on the top right-hand corner (facing
the back) of the machine. (See section 4.4 Mechanical Drawings; Cabinet
i. Run an appropriate length of ½” conduit from your dispenser to the mounting plate where it will be secured. The conduit needs to be of sufficient length and flexibility to permit the machine to be moved for cleaning without having to disconnect any wiring. ii. Run your dispenser wires through the conduit and through the enclosed area across the top of the machine and then feed them through the access hole provided in the back of the control panel drawer. iii. With the machine’s power “OFF”, connect your detergent and rinse dispenser wires to the power block supplied and labeled (“DISPENSER 110V - 3 AMPS
MAX”) inside the control panel drawer. The table that follows lists the function of each conductor of the multi-conductor electrical cable.
Wire Colors
Gray/Violet
Black
Brown
Circuit Voltage
90 VAC-130 VAC 50/60 Hz
90 VAC-130 VAC 50/60 Hz
No Connection. Insulate this wire!
Function
Main AC Power
Main AC Power
This wire is LIVE!
Yellow
White/Yellow
Violet
White/Violet
90 VAC-130 VAC 50/60 Hz
90 VAC-130 VAC 50/60 Hz
90 VAC -130 VAC 50/60 Hz
90 VAC -130 VAC 50/60 Hz
Detergent Signal
Detergent Signal
Rinse Signal
Rinse Signal
The individual conductors need to be connected as shown in Figure 2.2.4
and as described on next page.
1
All 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-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
7
Getting Started
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)
Note: In Figure 2.2.4 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 machine; and install the rinse injection fitting (supplied with your
dispenser). See Figure 2.2.3b.
3. A 7/8" detergent injection hole is provided in the back of the wash tank. Remove the S.S. plug and install the detergent fitting (supplied with your dispenser). See
Section 4.4.1 Cabinet Assembly, item #17.
4. The final step of installing the CMA supplied Detergent and Rinse Dispenser is programming it to your specific application. The reference manual supplied with the dispenser shows you how to program it.
Keep in mind while reading the reference manual that the CMA-180UC operates in “probe-less” mode. (This mode is selected by setting a value of
“2” in screen 21).
Screen 22 must be set to “1” (Door).
There are four user functions with this dispenser. Their operation is described in the reference manual. The four user functions are:
Rack Counter
Detergent Prime
Rinse Prime
De-Lime
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
8
Getting Started
2.2.5. Safe Ttemp Feature
The CMA “SafeTtemp” feature assures the final rinse cycle is always at a consistent minimum of
180 degrees.
How it works: the “SafeTtemp” function operates off the 5 th
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. Machine will remain in wash cycle mode until 180 degree rinse temperature is met, and at this time the cam timer will advance automatically into the rinse cycle and dispense 180 degrees rinse water over the dishes.
Note: if Safe Ttemp cam is not to be used, it becomes a spare cam.
CMA -180“SafeTtemp” Installation Instructions:
1) Remove the 4cam timer assembly (note wire colors and wire placement for all 4cam timer micro switches) and install 5cam timer in its place.
2) Place all wires removed from 4cam timer assembly in exact position on 5cam timer assembly.
3) The cam timer motor receives (1) yellow wire and (1) white wire (re-connect the yellow wire only from dishmachine harness to the motor).
4) The “SafeTtemp” 5 cam timer assembly kit includes a two white harness – connect white wire with female bullet connector to the timer motor, stripped end to #22/NC on contactor, and spade end to center terminal 5 th
micro switch.
5) Connect white wire with male bullet connector from the kit to the white wire with female bullet connector coming from dishmachine harness, stripped end to #21/NC on contactor, and spade end to top terminal on 5 th
micro switch.
L1 L2 L3 21 A1
HEATER CONTACTOR
N/C
T1 T2 T3 22 A2
SafeTtemp harness
Dishmachine harness
Female bullet connector
Male bullet connector
Female bullet connector
Male bullet connector
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
9
2.2.6. Water Tempering Kit
Getting Started
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
10
Getting Started
2.2.7. 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. Turn the Power switch to the "OFF" position.
5. Connect blue wire with disconnect, identified by red tag, to the High Limit
Switch which is located behind the thermostat behind the front kick panel. See
section 4.4.10 Heater Assembly, item #3.
Dishmachine checked for concealed damage
Hot water supply is 140° F (60 C) — minimum
Incoming water supply line is ½” — minimum
Incoming water supply is 6 GPM minimum at 24 PSI
Supply circuit breaker for machine is properly sized (50 amp)
Service voltage and phase type are correct to machine data plate
If drain pump is used, drain hose rises 12 to 16” before dropping to drain
Drain hose is installed with air gap (discharge 1” above drain)
Optional detergent and rinse dispenser (if present) is properly installed
Dishmachine is properly grounded
Dishmachine is properly leveled
Machine circuit breaker is labeled “DISHWASHER”
Machine has been “hard-wired” with correctly sized wire
Booster tank has been filled with water (before High Limit Switch is reset)
High Limit Switch for heater has been reset (after Booster Tank has been filled)
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
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11
Operation
3. Operation
3.1.1. Rinse Pressure Regulator
The CMA-180UC requires a supply water input pressure of 24 PSI minimum. This 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. While holding the “FILL” switch—to activate the water solenoid—adjust the pressure regulator until the gauge reads 20 PSI. (Regulator is located behind the front kick panel).
3.1.2. Rinse and Wash Temperatures
1. Turn the Power switch to the "ON" position.
2. After the machine has warmed up for about ten-minutes, note the wash and rinse temperatures. The wash temperature must be 155°F minimum. The
rinse temperature must be 180°F minimum . If necessary, adjust the temperatures by removing the front kick panel and turning the thermostat adjustment clockwise to increase, counterclockwise to decrease. This one
adjustment controls both temperatures. See section 4.4.10 Heater
1. Install wall chart and instruct machine operator on proper cleaning and operation of the CMA-180UC.
1. Open the door of the machine and check that the scrap screen is in place, and that the spray arms and end plugs are secure.
2. Close the door of the machine and turn the Power switch to the "ON" position.
3. Hold the fill button about 25 seconds or until the water overflows into the scrap tray.
4. Once the water is filled to the proper level, press the rocker switch marked “START”
– the machine will automatically begin its cycle.
5. Check machine’s operating temperatures — Adjust if necessary. See section 3.1.2
6. At the end of the wash period, drain the machine by pushing the rocker switch marked “DRAIN”. Clean the wash tank screen and scrap tray screen. Remove and clean the spray arms. (See wall chart instructions).
See Sections 2.2.3 and 2.2.4 dispenser insulation instructions for proper setup of
chemical feeders.
3
Rinse cycle temperature must be observed during a rinse cycle while the machine is in operation.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
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12
3.3. Operating and Cleaning Instructions
Operation
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
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13
Operation
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
14
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
Drain hose elevated too high
Replace micro switch, P/N 00411.00
Must be lowered to goose neck level
Scrap trap over flows
Obstruction in drain hose Check hose & clean
Door leaks
Scrap exit screen
Faulty drain pump
Machine not level
Machine is leaning forward
Wash arm end cap missing
Door gasket
Loose wire at display, board or transformer
Clean exit screen
Replace pump, P/N 15503.00
Adjust machine legs to level
Adjust machine legs to level
Replace end cap, P/N 00308.20
Replace gasket, P/N 14506.60
Secure connectors
Thermometer failure
Rinse water temperature low /high
Faulty temperature sensing wire
Faulty temperature sensing unit
Faulty transformer
Scaled heating element
Booster heater’s thermostat not properly set
Incoming water temperature to booster heater below 140 F
Correct, replace, P/N 03202.66
Replace unit, P/N 03203.00
Replace transformer, P/N 03202.60
Clean scale from heater
Adjust thermostat
Adjust external water heater in the facility
Pump motor not running
Loose lead connections
Faulty # 3 micro switch
Check and crimp connectors
Replace micro switch, P/N 00411.00
Faulty contactor
Faulty wash pump motor
Faulty # 3 micro switch
Replace contactor, P/N 15504.00
Replace wash pump motor, P/N 00201.00
Replace micro switch, P/N 00411.00
Pump motor runs continuously
Scrap trap overflows over night
Faulty contactor Replace contactor, P/N015504.00
Water regulator not adjusted properly Adjust regulator to 18-20 PSI
Low water pressure at the final rinse Clogged final rinse spray jets Clean jets
Missing final rinse spray end cap Replace end cap, P/N 00308.17
Low incoming water pressure from facility
Faulty water solenoid diaphragm
Increase pressure to 18-20 psi
Clean or replace diaphragm, P/N 00706.00
Low wash or rinse water temp. Check temperature settings
Poor cleaning results Wash arm bearing or jets
Rinse arm bearing or jets
Tank discharge screen dirty
Clean bearing and arm jets
Clean bearing and arm jets
Clean screen
Wash tank will not drain. Drain valve not operating Check power to drain valve
Drain valve faulty Replace Drain valve, P/N 04103.00
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
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15
Operation
3.6. Troubleshooting
PROBLEM LIKELY SOLUTION
Machine inoperative
Motor inoperative
Motor runs with door open
Heater (no heat)
Heater (never turns off)
Power off at circuit breaker
Defective power switch
Door is open
Control panel is pulled out
Reset circuit breaker
Replace power switch
P/N: 15521.50
Close door
Secure control panel
Defective reed switch
Defective timer assembly
Replace reed switch
P/N: 00557.55
Replace timer assembly*
P/N: 14408.80
Defective pump motor contactor Replace contactor
P/N: 15504.00
Defective motor Replace motor
P/N: 00201.66
Defective reed switch
Defective pump motor contactor Replace contactor
P/N: 15504.00
High limit switch opened or defective
Defective thermostat
Replace reed switch
P/N: 00557.55
Reset or replace switch
P/N: 17523.51
Replace thermostat
P/N: 13417.89
Defective heater contactor
Defective heater
Replace heater contactor
P/N: 15504.50
Replace heater
P/N: 15517.00
Defective thermostat
Defective heater contactor
Replace thermostat
P/N: 13417.89
Replace heater contactor
P/N: 15504.50
*The timer assembly motor (
P/N: 00501.00
) or micro switches (
P/N: 00411.00
) can be replaced independently if that’s the only component that’s failed.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
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16
Operation
PROBLEM LIKELY SOLUTION
Low heat during operation
Low rinse water pressure
Regulator at maximum but rinse pressure still low
Low rinse water flow
Low incoming water temperature
(below 140° F)
Thermostat out of adjustment
Cold water mixing with supply
Turn up supply water heater
Insulate supply water pipe
Adjust thermostat
Isolate hot water from cold water
Defective heater Replace heater
P/N: 15517.00
Adjust pressure regulator Pressure regulator out of adjustment
Defective pressure gauge (actual pressure is okay)
Insufficient water supply flow
Defective water solenoid valve
Replace pressure gauge
P/N: 13605.45
Supply larger supply line
Replace water solenoid valve
P/N: 03603.10
Low rinse water pressure See “Low rinse water pressure” in
PROBLEM
column
Limed up rinse arm spray nozzles De-lime rinse arm nozzles
No rinse water flow Defective water solenoid valve
Rinse water runs with door open
Water overflows scrap tray onto floor
With power on, activating start switch does not begin cycle
Defective (Rinse Relay) ice cube relay
Defective reed switch
Drain hose is kinked
Drain hose is not properly elevated before dropping to drain
(if drain pump is used)
Defective timer assembly
Defective drain pump
(if drain pump is used)
Defective start switch (cycle light will not light either)
Defective timer assembly
Replace water solenoid valve
P/N: 03603.10
Replace ice cube relay
P/N: 00631.00
Replace reed switch
P/N: 00557.55
Un-kink drain hose
Elevate drain hose 12 to 16” above pump before dropping to drain
Replace timer assembly*
P/N: 14408.80
Replace drain pump
P/N: 15503.00
Replace start switch
P/N: 15521.00
Replace timer assembly*
P/N: 14408.80
*The timer assembly motor (
P/N: 00501.00
) or micro switches (
P/N: 00411.00
) can be replaced independently if that’s the only component that’s failed.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
17
Operation
PROBLEM LIKELY SOLUTION
Start switch requires > 1 second activation to run cycle
Activating fill switch does not fill machine
Defective (Instant Start) ice cube relay
Defective drain/fill switch
Replace ice cube relay
P/N: 00631.00
Fill (rinse water) won’t shut off
Activating drain switch does not drain machine
Cycle light does not light while cycle runs
Power light does not light but machine runs
Wash tank or final rinse temperature does not display
Both the wash tank temperature and the final rinse temperature do not display
Wash tank or final rinse displays wrong temperature
Defective water solenoid valve
Defective water solenoid valve
Defective drain/fill switch
Defective timer assembly
Defective (Rinse Relay) ice cube relay
Drain hose is kinked
Defective drain/fill switch
Defective drain valve
Defective cycle light
Defective power light
Defective digital thermometer
Defective thermometer transformer
Defective digital thermometer
Defective thermister
Replace drain/fill switch
P/N: 15522.00
Replace water solenoid valve
P/N: 03603.10
Replace water solenoid valve
P/N: 03603.10
Replace drain/fill switch
P/N: 15522.00
Replace timer assembly*
P/N: 14408.80
Replace ice cube relay
P/N: 00631.00
Un-kink drain hose
Replace drain/fill switch
P/N: 15522.00
Replace drain valve
P/N: 04103.00
Replace cycle light (green)
P/N: 00406.60
Replace power light (red)
P/N: 00406.00
Replace digital thermometer
P/N: 03202.45
Replace thermometer transformer
P/N: 03202.60
Replace digital thermometer
P/N: 03202.45
P/N: 03202.65
Replace thermister
*The timer assembly motor (
P/N: 00501.00
) or micro switches (
P/N: 00411.00
) can be replaced independently if that’s the only component that’s failed.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
18
Parts Manual
4. Parts Manual
4.1. Initial Parts Kit (P/N 1100.66)
P/N DESCRIPTION
15504.00 Motor Contactor, 2-Pole 20 Amp
15504.50 Heater Contactor, 2-Pole 35 Amp
00501.00 2-Minute Timer Motor
00631.00 Ice Cube Relay 120 V
15521.00 Rocker Switch Start Momentary
15522.00 Rocker Switch Drain/Fill
15521.50 Rocker Switch Power Maintained
03623.00 1/2” Vacuum Breaker Repair Kit – Watts
00707.00 1/2” Water Solenoid Repair Kit – J/E
04103.00 L1X/L1-C Drain Valve 120V
00206.00 Pump Seal Kit
17523.60 High Limit Switch 200°F
00411.00 Microswitch
00738.15 3/4” Water Solenoid Valve Coil – J/E
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
19
4.2. Optional Drain Pump Kit
Parts Manual
ITEM
NO.
NO.
REQ’D
1
2
3
4
5
1
2
1
1
1
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
15503.00 Drain Motor Ultra Jet for CMA-180UC
00432.50 Twist Tie
15601.10 Black Drain Hose 1" ID X 3 1/2"
15601.50 Drain Hose 1" ID, 6 ft
15601.60 Robber Hose 90 Deg.
6
7
8
9
4
1
2
2
P/N DESCRIPTION
03101.00 Hose Clamp 1”
15603.00 Drain Line Gooseneck
03801.10 10-32 SS Nut
04806.00 #10 Brass Washer
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
20
Parts Manual
4.3. Optional Drain Pump—I
NSTALLATION
I
NSTRUCTIONS
1. Start by removing the existing drain hose from the Drain Valve as shown in
Figure 1
.
From Scrap Tray
Remove
From Wash Tank
Figure 1
2. Locate the white and purple wires that are safe-ended and tie-wrapped at the top of the Drain
Pump compartment. Bring these wires out so they can be connected after mounting the Drain
Pump.
3.
Connect the 3-inch long pump inlet drain hose to the Drain Valve and mount the Drain Pump using the nuts and washers provided with the kit as shown in
Figure 2
.
Remove this cover to make wire connections.
White wire
Purple wire
Tighten this hose clamp over Drain
Valve.
Drain hose must elevate
12 to 16 inches before dropping to drain.
3-inch pump inlet drain hose.
Figure 2
Remove the terminal cover and connect the white and purple wires to the two white wires from the pump. Replace the cover.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
21
Parts Manual
4. Secure the drain gooseneck to the wash riser pipe with the hose clamp provided as shown in
Figure 3.
Secure with hose clamp
Figure 3
5. Route the drain hose to the drain and provide a 1-inch air gap at the drain.
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
22
Parts Manual
ITEM
NO.
NO.
REQ’D
5
6
7
8
1
2
3
4
9
10
11
12
13
1
1
1
1
1
1
1
1
1
4
1
1
6
14502.82 Side Panel L.H. for CMA-180UC
14502.84 Side Panel R.H. for CMA-180UC
14503.50 SS Top for CMA-180UC
14510.00 Scrap Basket for CMA-180UC
14511.00 Tray Track R.H. for CMA-180UC
14512.00 Tray Track L.H. for CMA-180UC
14515.00 Lower Front Panel for CMA-180UC
14560.00 Scrap Tray Drawer for CMA-180UC
14501.00 SS Body for CMA-180UC
01310.60 Leg Adjusters for CMA-180UC
14506.50 Door Gasket for CMA-180UC
14506.45 Gasket Bracket for CMA-180UC
00940.50 10-32 x 3/8 Trusshead Screw
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
18
19
20
21
14
15
16
17
22
23
24
25
1
1
1
1
8
4
4
1
2
2
2
1
P/N DESCRIPTION
00941.00 10-32 x 5/8 Panhead Screw
03801.00 10-32 Lock Nut
00940.51 #10 Internal Lock Star Washer
01513.00 Detergent Injection Hole Plug
00752.00 Detergent Injection Hole Plug Gasket
00912.00 1/4”-20 Nylon Lock Nut
03705.84 Control Box 2ft Gasket for CMA-180UC
14558.00 Body Magnet Holder for CMA-180UC
00557.80 Magnet for CMA-180UC
00927.00 8-32 Lock Nut
04806.00 #10 Brass Flat Washer
00214.30 1/4" Compression x 3/8” MIP Fitting
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
23
Parts Manual
ITEM
NO.
NO.
REQ’D
5
6
7
1
2
3
4
2
1
1
1
2
1
1
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
14506.00 Door for CMA-180UC
04517.60 Door Support Rod Block
14570.00 Door Hinge R.H. for CMA-180UC
14570.50 Door Hinge L.H. for CMA-180UC
04919.00 Door Rod Screw Pin for CMA-180UC
04918.60 Door Support Rod Right
04919.50 Door Support Rod Left
10
11
12
13
14
15
16
P/N DESCRIPTION
1
2
2
2
14558.61 Door Magnet Holder for CMA-180UC
00965.00 6-32 Lock Nut
00605.20 Door Rod Spacer
04517.15 Door Stop (Parallel)
10 00912.00 1/4”-20 Nylon Lock Nut
14 00924.00 1/4” SS Washer
4 00914.10 1/4”-20 x 5/8” Hexhead Bolt
9 2 00970.60 6-32 x 1/2” Flathead Screw
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
24
Parts Manual
ITEM
NO.
NO.
REQ’D
5
6
7
1
2
3
4
1
2
2
1
1
1
1
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
14504.00 Electrical Tray for CMA-180UC
14408.80 Timer Assy 4 Cam 2 Min. CMA-180UC
15504.00 Motor Contactor, 2-Pole 20 Amp
15504.50 Heater Contactor, 2-Pole 35 Amp
15520.50 Power Block, 3-Position
00438.00 Snap Bushing, Universal
01001.00 6-32 x 1” Panhead Screw
8
9
10
11
12
13
P/N DESCRIPTION
12 00927.00 8-32 Nylon Lock Nut
1 13426.60 Ground Block
2
1
00965.00
00401.85
6-32 Lock Nut
3/4” Conduit Connector, Straight
9
1
00400.85 3/4” Conduit, Sealtite
13304.61 HT Plumbing Bracket
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
25
Parts Manual
ITEM
NO.
NO.
REQ’D
1
2
3*
4
5
6
7
8
9
10
1
2
2
1
1
1
1
1
1
1
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
15520.00
00631.00
03203.00
03202.60
14503.00
15523.00
15523.50
15524.00
13426.50
00438.00
Power Block 12-Position
Ice Cube Relay 120 V
Dual Temperature Display Kit
Thermometer Transformer
Control Drawer for CMA-180UC
Rocker Switch Start Momentary
Rocker Switch Drain/Fill DPDT/Mom.
Rocker Switch Power Maintained
Ground Block
Snap Bushing, Universal
11
12
13
14
15
16
17
18
19
2
2
5
6
1
4
2
2
2
P/N
01001.00
00965.00
00927.00
00911.00
00557.55
00917.00
03705.82
03202.66
00971.10
*Kit includes 2 of #03202.66
DESCRIPTION
6-32 x 1” Panhead Screw
6-32 SS Nylon Lock Nut
8-32 Nylon Lock Nut
8-32 x 1/2” Panhead Screw
Reed Switch
8-32 PM Nut
Sponge Strip
Thermocouple
4-40 Nylon Lock Nut
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
26
4.4.5. Plumbing System Assembly
Parts Manual
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
9
10
11
12
13
14
5
6
7
8
1
2
3
4
1
1
1
1
2
1
1
1
2
2
1
1
2
4
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
03603.10 1/2” Water Solenoid Valve 120V/60Hz
13602.45 1/2” Pressure Regulator CMA-180UC
03614.00 Nipple, Brass 1/2” Close
00760.00 5/8” Compression x 1/2” MIP Adapter
00745.00 1/2” 90° Elbow M x F (RM)
05007.66 Solenoid and Valve Line
00725.60 1/2” Plumbing Strap
00915.00 1/4”-20 SS Nut
15602.00 SS Braid Hose 20”
00743.10 1/2" T,FxFxF
13605.45 Pressure Gauge for CMA-180UC
00798.40 SS Braid Hose 12”
00724.00 1/2” Compression x 1/2” MIP Adapter
00707.00 1/2” Water Solenoid Repair Kit J/E
19
20
21
22
15
16
17
18
23
24
25
26
27
1
1
1
1
1
1
1
1
1
1
1
1
1
00786.00 Water Solenoid Valve Plunger
00706.10 Plunger Spring Only
00738.10 Water Solenoid Coil J/E
03624.00 1/2” Vacuum Breaker – Watts
03623.00 1/2” Vac. Breaker Repair Kit – Watts
03624.25 Vacuum Breaker Bonnet, Brass
00739.50 Vacuum Breaker Cap, SS
13669.45 SS Mixing Chamber CMA-180UC
00798.00 1/2” SS Braided Hose
03232.00 1/8” Male Plug
00214.60 1/4” Compression x 1/2” MIP FTG
05007.60 Vacuum Breaker Line
13304.53 Long Support Bracket
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
27
4.4.6. Drain System Assembly
Parts Manual
ITEM
NO.
NO.
REQ’D
1
2
3
1
6
2
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
04103.00
03101.00
L1X/L1-C Drain Valve 120V
Hose Clamp #16-1”
15601.60 Hose 1” ID 7” Pump to Manifold
4
5
1
1
P/N DESCRIPTION
04106.00 1” 90° Barb x Barb Elbow
15601.10 Black Drain Hose 1" ID X 3 1/2"
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
28
Parts Manual
ITEM
NO.
NO.
REQ’D
2 4
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
3 2
00308.20 Wash Arm End Plug
P/N DESCRIPTION
04305.17 Red Silicon Gasket 1/16” Thick
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
29
Parts Manual
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
1
2
2
8
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
00304.65 Rinse Arm CMA-180UC
13304.55 SS Final Rinse Spray Jet – HT
3
4
2
4
04305.17 Red Silicon Gasket 1/16” Thick
00308.17 Rinse Arm End Cap
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
30
4.4.9. Pump System Assembly
Parts Manual
5
6
7
8
1
2
3
4
ITEM
NO.
NO.
REQ’D
1
8
1
1
4
4
4
1
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
00908.00 5/16”-18 SS Hexhead Bolt
00926.00 5/16” SS Washer
00913.00 5/16”-18 Hex Nut
00208.20 Slip Joint Ring
00201.66 Water Pump Motor for CMA-180UC
00921.00 3/8”-16 x 3/4” Hex Bolt
03224.00 Pump Base (Mount)
00206.00 Pump Seal Kit
10
11
12
13
14
15
16
17
2
1
1
2
1
1
1
1
P/N DESCRIPTION
04206.00 Pump Cover
00208.00 Slip Joint Nut Gasket
04204.00 L-1X Compression Nut 2.5”
00213.50 Pump Fitting
00301.00 1” Hose Clamp #16
03108.60 1” Reinforced Hose
03226.00 Pump “O” Ring Gasket
00238.00 3/8” Male Plug
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
31
4.4.10. Heater Assembly
Parts Manual
ITEM
NO.
NO.
REQ’D
1
2
3
1
1
1
P/N DESCRIPTION
ITEM
NO.
NO.
REQ’D
15517.00 Heater 6kW for CMA-180UC
13417.89 Heater Thermostat
17523.60 High Limit Switch 200°F
6
7
4
1
P/N DESCRIPTION
00926.00 5/16” SS Washer
40116.00 1/4” Compression x 1/4” MIP FTG
8 2 00965.00 6-32 Lock Nut
9 2 High Limit Switch Spacer
5 4 13805.00 5/16”-18 Nylon Insert Lock Nut
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
32
Parts Manual
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
33
Parts Manual
MODEL CMA-180UC SERVICE & PARTS MANUAL Rev. 1.14
Page
34
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Table of contents
- 4 CMA-180UC
- 7 Electrical
- 7 Plumbing
- 7 BETA Detergent and Rinse Dispenser (Optional)
- 9 NOVA Detergent and Rinse Dispenser(Optional)
- 11 Safe Ttemp Feature
- 12 Water Tempering Kit
- 13 Booster Heater Setup
- 13 Installers Checklist
- 14 Rinse Pressure Regulator
- 14 Rinse and Wash Temperatures
- 14 Post Instructions
- 21 (P/N 1100.66)
- 25 Cabinet Assembly
- 26 Door Assembly
- 27 Electrical Tray
- 28 Control Panel
- 29 Plumbing System Assembly
- 30 Drain System Assembly
- 31 Wash System