www.cmaglasswashers.com
TABLE OF CONTENTS
MODEL CMA-181GW
1. SPECIFICATIONS ........................................................................................ 2
1.1. CMA-181GW ........................................................................................................................ 2
1.2. CMA-181GW OPERATIONAL CYCLE ..................................................................................... 3
2. GETTING STARTED ..................................................................................... 5
2.1. INTRODUCTION TO CMA-181GW .......................................................................................... 5
2.2. RECEIVING AND INSTALLATION.............................................................................................. 5
2.2.1. Electrical ....................................................................................................................... 6
2.2.2. Plumbing ........................................................................................................................ 6
2.2.3. BETA Detergent And Rinse Dispenser. ......................................................................... 7
2.2.4. Safe Ttemp Feature ........................................................................................................ 8
2.2.5. Booster Heater Setup ..................................................................................................... 9
2.2.6. Installer Checklist .......................................................................................................... 9
3. OPERATION ............................................................................................... 10
3.1. INITIAL SETUP .......................................................................................................................10
3.1.1. Dema Flow Disc ...........................................................................................................10
3.1.2. Rinse and Wash Temperatures .....................................................................................10
3.1.3. Post Instructions ...........................................................................................................10
3.2. STARTUP PROCEDURES ..........................................................................................................10
3.3. OPERATING AND CLEANING INSTRUCTIONS ..........................................................................11
3.4. PREVENTIVE MAINTENANCE CHART .....................................................................................12
3.5. QUICK SERVICE GUIDE ...........................................................................................................13
3.6. TROUBLESHOOTING ...............................................................................................................14
4. PARTS KIT ................................................................................................. 17
4.1. INITIAL PARTS KIT (P/N 1100.66) .........................................................................................17
4.2. OPTIONAL DRAIN PUMP KIT INSTALLATION INSTRUCTIONS .................................................18
5. CUSTOMER NOTICE ................................................................................. 20
6. ELECTRICAL DIAGRAM ............................................................................ 21
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
2
1. Specifications
1.1. CMA-181GW
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/cm
2
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 GLASSWARE 11-1/4” (28.6 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 1 HP 1 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.
Note: The required flowing water pressure to the dishwasher is 15-65 PSIG. If pressures higher than
65 PSIG are present, a pressure regulating valve must be installed in the water line to the dishwasher
(by others). If flowing pressure is lower than 15 psi, improper machine operation may result.
METRIC
EQUIVALENT
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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1.2. CMA-181GW Operational Cycle
The CMA-181GW 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-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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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.
Getting Started
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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2. Getting Started
2.1. Introduction to CMA-181GW
The CMA-181GW is a hot water sanitizing, single rack, under-counter glasswasher. 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-181GW 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-181GW 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.
This manual is structured to provide a complete reference guide to the CMA-181GW. 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 glasswasher. 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.
We are committed to providing the best machines and customer service in the food industry and
your feedback is welcome.
CMA expressly disclaims any and all warranties, express or implied, relating to the installation of any and all CMA equipment that is installed by chemical dealers, contracted servicers or third
party servicers to CMA equipment. If the installation instructions are not followed exactly (to the letter), or, if any person or company conducting the installation of the CMA equipment, revise the
installation procedures or alter the instructions in any manner, the CMA warranty becomes void. If, due to the improper installation of CMA equipment, this equipment ceases to operate properly or
affects other parts of the CMA dishwashing equipment, in that the other parts become defective, the CMA warranty becomes void. CMA will not be liable or responsible or warrant CMA
equipment, due to improper installation of any CMA model dishwasher.
DISCLAIMERS
CMA does NOT
endorse “Tankless On-Demand” water heaters for use on CMA Dishmachine products. On most applications, the
volume of hot water required for commercial dishmachines exceeds the capacity of these types of heating sources. You will find
that most, if not all, commercial dishmachines have been programmed with auto-filling features that require quick filling, with a
designated limited time.
CMA
DOES endorse, and highly recommends, the standard “tank” style water heaters, sized properly to handle each particular
facility with their water heating requirements. A “tank” style water heater stores and supplies a large capacity of preheated water
before providing hot water to the dishmachine. To meet required health codes, there must be a reliable and consistent flow of
adequate hot water supplied to the dishmachine. If the facilities’ “tank” style water heater is marginal in size, CMA recommends
installing a proper size Hatco Booster Heater, a CMA’s E-Temp 40 or 70-degree-rise Booster Heater (that can be installed on CMA
Conveyors), or a CMA Temp-Sure Booster Heater (for door and undercounter dishmachines). All are designed to adequately
achieve results.
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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2.2. Receiving and Installation
The glasswasher 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
to prevent door leaks.
Steam generated from normal operation may escape from door. Wood, laminates, veneers, etc.
are unsuitable materials for use in areas exposed to dishwasher steam and detergents. Stainless
steel or other moisture-resistant shields are recommended for surfaces adjacent to sides and
tops of under counter dishwashers.
2.2.1. Electrical
1
Prior to installation make sure the electrical supply is compatible with the specifications on the
machines data plate.
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. 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.
WARNING: Electrical and grounding connections must comply with the applicable portions of the
National Electrical Code and/or other local electrical codes.
Note: For supply connections, use copper wire only rated at 90 degree C minimum
2.2.2. Plumbing
2
Notice to Plumber: The plumber connecting this machine is responsible for making certain that
the water lines are THOROUGHLY FLUSHED OUT BEFORE connecting to the dishwasher.
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).
Note: high iron levels in the water supply can cause staining and may require an iron filter. High
chlorine levels in the water supply can cause pitting and may require a chloride removal system.
If an inspection of the dishwasher or booster heater reveals lime buildup after the equipment has
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-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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been in service, water treatment is recommended. If water softener is already in place, ensure
there is a sufficient level of salt.
Warning:
The supply water to the CMA-181GW 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).
If water pressure exceeds 50 PSI, pressure reducing valve (PRV) is recommended.
Warning:
Water hardness greater than 3 grains per gallon requires a water softener to prevent
damage to heating elements (scale build- up) and booster tank rinse flow restriction. Rinse flow
restriction will cause the booster tank to expand and contract causing metal flex, which will
eventually crack the tank.
2.2.3. BETA Detergent And Rinse Dispenser.
Optional built-in Beta dispenser (CMA p/n 14585.00) has easy access for chemical settings
behind the front kick panel. Both initial charge and recharge are factory pre-set. Basic settings for
both detergent and rinse speed are 50%. Operating fine-adjustment screws on the dispenser can
control the amount of chemicals drawn into chemical lines.
Undercounter machine with the optional dispenser must be ordered separately, as option at time
of order. Optional dispenser has to be pre-wired prior to shipment (see electrical diagram for
wiring options).
Note: Use only commercial-grade detergents and rinse aids recommended by your chemical
professional. Do not use detergents and rinse aids formulated for residential dishwashers.
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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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.
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
2) Place all wires removed from 4cam timer assembly in
) and install 5cam timer in its place.
exact position
3) The cam timer motor receives (1) yellow wire and (1) white wire (re-connect the
on 5cam timer
assembly.
yellow
wire
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.
only from glasswasher harness to the motor).
5) Connect white wire with male bullet connector from the kit to the white wire with female
bullet connector coming from glasswasher harness, stripped end to #21/NC on contactor,
and spade end to top terminal on 5
th
micro switch.
HEATER CONTACTOR
L1 L2 L3 A1
T1
T2 T3 A2
N/C
21
22
Dishmachine
harness
Female bullet
connector
Male bullet
connector
SafeTtemp
harness
Female bullet
connector
Male bullet
connector
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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2.2.5. 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 disconnected at the
factory and will require re-connection 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.
2.2.6. Installer Checklist
Glasswasher 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)
Glasswasher is properly grounded
Glasswasher is properly leveled
Machine circuit breaker is labeled “GLASSWASHER”
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)
Operation
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3. Operation
3.1. Initial Setup
3.1.1. Dema Flow Disc
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 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
3
3.1.3. Post Instructions
. 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.
1. Install wall chart and instruct machine operator on proper cleaning and
operation of the CMA-181GW.
3.2. Startup Procedures
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
Rinse and Wash Temperatures.
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).
3
Rinse cycle temperature must be observed during a rinse cycle while the machine is in operation..
Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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3.3. Operating and Cleaning Instructions
Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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3.4. Preventive Maintenance Chart
Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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3.5. Quick service guide
MODEL: CMA 181GW HIGH TEMP UNDER COUNTER
TECHNICAL ISSUE
CAUSE
SOLUTION
Machine not level
Adjust machine legs to level
Machine is leaning forward
Adjust machine legs to level
Door leaks
Wash arm end cap missing
Replace end cap
Door gasket
Replace gasket
Loose wire at display, board or
transformer
Secure connectors
Thermometer failure
Faulty temperature sensing wire
Correct, replace
Faulty temperature sensing unit
Replace unit
Faulty transformer
Replace transformer
Scaled heating element
Clean scale from heater
Rinse water temperature low /high
Booster heater’s thermostat not
properly set
Adjust thermostat
Incoming water temperature to
booster heater below 140 F
Adjust external water heater in the facility
Loose lead connections
Check and crimp connectors
Pump motor not running
Faulty # 3 micro switch
Replace micro switch
Faulty contactor
Replace contactor
Faulty wash pump motor
Replace wash pump motor
Pump motor runs continuously
Faulty # 3 micro switch
Replace micro switch
Faulty contactor
Replace contactor
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
Low incoming water pressure from
facility
Increase pressure to 18-20 psi
Scrap trap overflows overnight
Faulty water solenoid diaphragm
Clean or replace diaphragm
Low wash or rinse water temp.
Check temperature settings
Poor cleaning results
Wash arm bearing or jets
Clean bearing and arm jets
Rinse arm bearing or jets
Clean bearing and arm jets
Tank discharge screen dirty
Clean screen
Wash tank will not drain
Drain valve not operating
Check power to drain valve
Drain valve faulty
Replace drain valve
Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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3.6. Troubleshooting
PROBLEM LIKELY CAUSE SOLUTION
Machine inoperative Power off at circuit breaker Reset circuit breaker
Defective power switch Replace power switch
Motor inoperative Door is open Close door
Control panel is pulled out Secure control panel
Defective reed switch Replace reed switch
Defective timer assembly
Replace timer assembly*
Defective pump motor contactor Replace contactor
Defective motor Replace motor
Motor runs with door open Defective reed switch Replace reed switch
Defective pump motor contactor Replace contactor
Heater (no heat) High limit switch opened or
defective
Reset or replace switch
Defective thermostat Replace thermostat
Defective heater contactor Replace heater contactor
Defective heater Replace heater
Heater (never turns off) Defective thermostat Replace thermostat
Defective heater contactor Replace heater contactor
*The timer assembly motor or micro switches can be replaced independently if that’s the only
component that’s failed.
Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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PROBLEM LIKELY CAUSE SOLUTION
Low heat during operation Low incoming water temperature
(below 140° F)
Turn up supply water heater
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
Low rinse water pressure Pressure regulator out of
adjustment
Adjust pressure regulator
Defective pressure gauge (actual
pressure is okay)
Replace pressure gauge
Regulator at maximum but
rinse pressure still low
Insufficient water supply flow Supply larger supply line
Defective water solenoid valve Replace water solenoid valve
Low rinse water flow 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 Replace water solenoid valve
Defective (Rinse Relay) ice cube
relay
Replace ice cube relay
Rinse water runs with door
open
Defective reed switch Replace reed switch
With power on, activating
start switch does not begin
cycle
Defective start switch (cycle light
will not light either)
Replace start switch
Defective timer assembly
Replace timer assembly*
*The timer assembly motor or micro switches can be replaced independently if that’s the only
component that’s failed.
Operation
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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PROBLEM LIKELY CAUSE SOLUTION
Start switch requires > 1
second activation to run
cycle
Defective (Instant Start) ice cube
relay
Replace ice cube relay
Activating fill switch does
not fill machine
Defective drain/fill switch Replace drain/fill switch
Defective water solenoid valve Replace water solenoid valve
Fill (rinse water) won’t shut
off
Defective water solenoid valve Replace water solenoid valve
Defective drain/fill switch Replace drain/fill switch
Defective timer assembly
Replace timer assembly*
Defective (Rinse Relay) ice cube
relay
Replace ice cube relay
Activating drain switch
does not drain machine
Drain hose is kinked Un-kink drain hose
Defective drain/fill switch Replace drain/fill switch
Defective drain valve Replace drain valve
Cycle light does not light
while cycle runs
Defective cycle light Replace cycle light (green)
Power light does not light
but machine runs
Defective power light Replace power light (red)
Wash tank or final rinse
temperature does not
display
Defective digital thermometer Replace digital thermometer
Both the wash tank
temperature and the final
rinse temperature do not
display
Defective thermometer
transformer
Replace thermometer
transformer
Wash tank or final rinse
displays wrong
temperature
Defective digital thermometer Replace digital thermometer
Defective thermister Replace thermister
*The timer assembly motor or micro switches can be replaced independently if that’s the only
component that’s failed.
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
17
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
00707.00 ½ Water Solenoid Repair Kit JE 1
00738.15 Solenoid Coil JE 220V 1
15523.00 Rocker Switch Start Momentary 1
15523.50 Rocker Switch Drain/Fill 1
15524.00 Rocker Switch Power Maintained 1
00556.10 Reed Switch 1
03623.00 1/2” Vacuum Breaker Repair Kit – Watts 1
00707.00 1/2” Water Solenoid Repair Kit – J/E 1
04113.00 L1X/L1-C Drain Valve 120V 1
00206.70 Pump Seal Kit 1
13417.89 Heater Thermostat 1
17523.60 High Limit Switch 200°F 1
00411.00 Microswitch 1
03203.01 Dual Temperature Display Kit 1
00738.15 Solenoid Coil JE 115V/60Hz 1
Parts Manual
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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4.2. Optional Drain Pump Kit Installation Instructions
Kit P/N 15502.50 Includes:
ITEM
NO.
NO.
REQ’D
P/N DESCRIPTION
1 1 15605.00 Drain Hose w/Goose Neck
2 1 15503.00 Drain Motor Ultra Jet (CMA 180 UC)
3 2 00441.00 Wire Nuts
4 1 15601.60 Hose 1” ID 14” Pump to Manifold
5 1 15603.00 Drain Line Gooseneck Stainless
6 6 03101.00 Hose Clam # 16 1”
Instructions:
1. Attach drain line gooseneck # 5 from the kit to the manifold with hose clamps # 6 (see Fig 1).
Figure 1
Parts Manual
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
19
2. Start by removing the existing drain hose (grey) #1 from the Drain Valve’s black hose #2
(See F
igure 2)
Figure 2
3. Connect the pump inlet to the Drain Valve’s black hose and secure drain pump with the hose
clamps #6.
4. Locate white and purple wires exposed and safe-ended in the back of the machine.
5. Remove terminal cover and connect these wires to the two white wires from the pump using
wire nuts #3 from the kit. Replace the cover.
6. Connect black hose #4 and drain hose #1 to the drain line as you see in illustration above.
7. Secure them with hose clamps #6 from the kit. Drain hose must elevate before dropping into
the drain pipe.
8. Rout the drain hose to the drain and provide a 1-inch air gap at the drain.
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2
3
4
Parts Manual
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
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5. Customer Notice
CMA-181GW Installation Guidelines
Improper installation of this product may void the warranty on this machine. Please follow
these guidelines for recommended installation and to ensure the warranty of this model is
authorized by CMA Glasswashers.
1. Machine
Glasswasher Installation Requirements
must
2. Drain height should not exceed maximum height of 16”. Connect supplied
drain line to 3-way valve on back of machine and gravity feed to the floor
drain.
be level. Adjust leveling feet to accommodate uneven floor
surfaces.
3. Check the Pressure. Recommended pressure is between 18-20 psi.
4. Water supply to machine must be a minimum 110°F .
5. A four-wire, (neutral, ground and two 110v lines) 220v single phase
connection is required. There is a six foot cord provided with the machine.
CMA recommends a minimum 50-amp dedicated circuit, but you should
consult your local building code requirements for proper breaker size.
1. Booster heater
Activating/Adjusting the Booster Heater
must
2. Once the booster has been connected, the thermostat should be adjusted
to maintain 180°F during the final rinse cycle. The thermostat is located on
the front of the booster tank and is accessible by removing the front panel
on the machine.
be filled with water prior to connecting the blue wire
from high limit switch. The high limit switch can be found by removing the
front panel and locating the red button on the front of the heater tank.
1. Applications utilizing automated dispensers for administering warewash
chemicals must use 110v dispenser equipment. There is a 110v power
block for installing this equipment inside the control panel.
Automatic Dispensing Equipment
Electrical Diagram
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
21
6. Electrical Diagram
181GW
Electrical Diagram
MODEL CMA-181GW INSTALLATION & OPERATION MANUAL Rev. 1.00B Page
22
181GW
