CMA Dishmachines UC65e M3 User manual

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MODEL UC65e M3
Installation Operation Manual
Rev 1.00 01-01-22
800-854-6417
FAX [phone]
C M A D I S H M AC 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

PRODUCT REGISTRATION
ONLINE
Connect to the internet and enter the URL below to
register your machine.
https://cmadishmachines.com/warranty-registration/

COPYRIGHT © 2019All rights reserved Printed in the USA
For future reference, record your dishwasher information in the box below.
Model Number__________________________ Serial Number_______________________
Voltage________________Hertz_____________ Phase__________________
Service Agent __________________________________ Tel:______________________
Parts Distributor _________________________________ Tel:______________________
ATTENTION:
The model no., serial no., voltage, Hz
and phase are needed to identify your
machine and to answer questions.
The machine data plate is located
on the lower front panel.
Please have this information ready
if you call for service assistance.
National Service Department
CMA Dishmachines
12700 Knott Avenue
Garden Grove, CA 92841
Toll-free: 1 [phone]
Fax: [phone]

Table of Contents
Table of Contents
Installation ......................................................................................................................................1
Receiving and Placement ...................................................................................................................1
Installation Codes ..................................................................................................................................2
Water Connection ................................................................................................................................3
Drain Connection .................................................................................................................................4
Electrical Connection ...........................................................................................................................6
Detergent Set-up....................................................................................................................................8
Rinse-Aid Set-up...................................................................................................................................10
Operation ......................................................................................................................................12
Control Panel Description ................................................................................................................12
Loading Wares .....................................................................................................................................13
Operation Display .............................................................................................................................14
Wash Cycle ...........................................................................................................................................15
Rinse Sentry, Auto-Clean, and Drain Mode ..........................................................................16
Cleaning .........................................................................................................................................17
Wash and Rinse Spray Arms, Scrap Screens, Exterior ....................................................17
Deliming..................................................................................................................................................18
Maintenance..................................................................................................................................19
Schedules ................................................................................................................................................19
Troubleshooting Chart .......................................................................................................................20
Timing Chart and Electrical Schematic ..............................................................................21
Timing Chart ..........................................................................................................................................21
Electrical Schematic ...........................................................................................................................22

Safety Symbols
Safety Symbols
WARNING:
Warnning statements indicate a condition or practice that can result in personal injury
or possible death.
CAUTION:
Caution statements indicate a condition or practice that can result in damage to the
machine or associated equipment.
DO NOT:
operation of the machine.
OKAY:
Okay statements indicate that a condition or practice is correct and should be
followed.
NOTE:
Note statements highlight important information necessary for the operation of the
machine.
The following symbols are used throughout this manual to alert the reader to important information.

Receiving
1. Compare the installation site utility connections with the dishwasher utility connections and
make sure they are the same.
2. Level the machine using the four leveling feet. Level side-to-side and front-to-back.
3. Plumbing connections must be made before the electrical installation begins.
4. The dishwasher can be installed as a free-standing unit or under a counter-top. The typical
counter-top height in most locations is 34" [86cm].
5. It is highly recommended that the underside of the counter-top be clad in metal.
6. Under counter installations should provide storage space for the dishwasher chemical
supply containers. Do not elevate the containers above the finished floor.
7. Chemical supply containers should be placed as close to the machine as possible.
8. The chemical tubing taped to the back of the machine must be repositioned before
permanently placing the machine.
9. Place the dishwasher in its permanent location.
10. Remove the lower front panel in preparation for
utility installations.
Receiving/Placement/Installation Codes
1. Inspect the outside of the dishwasher carton for signs of damage.
2. Remove the carton and inspect the dishwasher for damage.
3. Check for any options or accessories that may have shipped with your
dishwasher.
4. Register by fax using the form at the front of this manual or online at:
https://cmadishmachines.com/warranty-registration/
CAUTION:
Be careful when lifting and moving the machine to avoid damage.
Placement
Fig. 2 -
Level the machine.
Fig. 1 -
Do not elevate chemical containers
1
0 60
10
20 40
30
50
psi
L
E
V
E
L
LE
VEL
LEVEL ADJUSTMENT

Installation
The installation of the dishwasher must comply with all local electrical, plumbing, health, and
safety codes or in the absence of local codes, installed in accordance with the applicable require-
ments in the National Electrical Code, NFPA 70, Canadian Electrical Code (CEC), Part 1, CSA
C22.1; and the Standard for Ventilation Control and Fire Protection of Commercial Cooking
Operations, NFPA 96.
Installation Codes
NOTE:
The installation of your dishwasher must be performed by qualified service personnel
familiar with food service equipment and must comply with all local health codes.
Problems due to improper installation are not covered by the Limited Warranty.
STOP STOP
ALL PLUMBING CONNECTIONS MUST BE MADE BEFORE THE ELECTRICAL INSTALLATION.
DAMAGE TO THE WATER HEATERS WILL OCCUR IF POWER IS TURNED ON WITHOUT AN
ADEQUATE WATER SUPPLY.
DAMAGE DUE TO IMPROPER INSTALLATION IS NOT
COVERED BY THE LIMITED WARRANTY.
2

Installation
Water Connection
Continued on the next page.
CAUTION: To prevent damage to the dishwasher supply valves, the installing
plumber must thoroughly flush debris from the water supply line before connecting
it to the dishwasher. Damage caused by improper installation is not covered by the
limited warranty.
HOT
WATER
Connect the plumbing in accordance with the specifications below.
NOTE: All plumbing connections MUST BE POSITIONED to allow the machine to be
moved for service and cleaning.
INSTALL A 1/2" OR LARGER SHUT-OFF VALVE IN THE WATER SUPPLY
LINE AS CLOSE TO THE DISHWASHER AS POSSIBLE FOR SERVICING.
THE PRV SHIPPED INSIDE THE DISHWASHER MUST BE INSTALLED
IN THE INCOMING WATER LINE AFTER THE SERVICE SHUT-OFF VALVE.
THE PRV MUST BE ADJUSTED TO PROVIDE 20-22 PSI FLOWING
PRESSURE MEASURED AT THE DISHWASHER.
THE DISHWASHER IS EQUIPPED WITH A 6 FT / 1.8 m FLEXIBLE FILL
HOSE WITH A 3/4" FNPT FITTING.
WATER HARDNESS OF 3 GRAINS/US GAL - 0.83 IMP GAL - 5.3mg/L
OR LESS.
BOOSTER
RISE °F
BOOSTER
kW
MINIMUM INCOMING
TEMPERATURE
MIMIMUM INCOMING
SUPPLY FLOWING PRESSURE
MIMIMUM/MAXIMUM
OPERATING FLOWING PRESSURE
MINIMUM 1/2" NPT OR LARGER HOT WATER SUPPLY LINE.
20-22 PSI 138-152 kPa
45 PSI/310 kPa
45 PSI/310 kPa
110°F/ 43°C
70 °
RISE 6kW
40 °
RISE 4kW 140°F/ 60°C
20-22 PSI 138-152 kPa
3

Installation
Drain Connection
DRAIN
Connect the drain in accordance with the specifications below.
CAUTION: The dishwasher drain connection must comply with all local plumbing,
health and safety codes. Damage caused by improper installation is not covered by
the limited warranty
THE LIMITED WARRANTY IS VOID IF:
• an extension is added to the drain hose
• the syphon loop is modified or removed
• the supplied drain hose fitting is not used
STOP
STOP
DRAIN CONNECTION WITH A DEDICATED WASTE LINE IS
STRONGLY RECOMMENDED.
CONNECT THE DRAIN HOSE TO A 1-1/2" WYE FITTING.
THE DISHWASHER IS EQUIPPED WITH A 4FT / 1.2 m CLEAR
BRAIDED DRAIN HOSE AND A 3/4" MNPT x 5/8" HOSE
BARB ADAPTER.
THE DRAIN HOSE MUST BE VENTED TO PREVENT SIPHONING.
4

Installation
DO NOT
REPOSITION
THE DRAIN HOSE
DO NOT ADD AN
EXTENSION TO
THE DRAIN HOSE
Fig. 3
Configuring the drain line.
Drain Connection
Fig. 4
Do not void the limited warranty.
5
0 60
10
20 40
30
50
psi
3/4 IN. MNPT
HOSE ADAPTER
DRAIN HOSE
DRAIN MUST BE
VENTED TO PREVENT
SYPHONING
1-1/2 IN. WYE
FITTING
*18IN.
OPTIMUM
*3FT. MAX OFF
FLOOR LEVEL

6
Installation
RECEIVING
Counter-top
Wall
3" [8cm] Min.
34"
[86cm]
Min.
Floor
The installation of the dishwasher must comply with all local electrical, plumbing, health and
safety codes or in the absence of local codes, installed in accordance with the applicable
requirements in the National Electrical Code, NFPA 70, Canadian Electrical Code (CEC),
Part 1, CSA C22.1; and the Standard for Ventilation Control and Fire Protection of
Commercial Cooking Operations, NFPA 96.
INSTALLATION CODES
CAUTION: Be careful when moving the dishwasher to prevent damage.
• Inspect the shipping carton damage and report immediately.
• Inspect the shipment for accessories and items shipped with the machine.
• Compare the installation site utilities to ensure they are the correct size and location.
1. The dishwasher can be installed as a free-standing unit or under a counter-top.
The typical counter-top height in most locations is 34" [86cm].
2. It is highly recommended that the underside of the counter-top be clad in metal.
3. Under counter installations should provide storage space for the dishwasher chemical
supply containers. Do not elevate the containers above the finished floor.
4. Chemical supply containers should be placed as close to the machine as possible and
the chemical tubing taped to the back of the machine should be repositioned before
permanently placing the machine.
5. Place the dishwasher in its permanent location.
6. The dishwasher has 4 adjustable feet for leveling.
7. Level the dishwasher front-to-back and
side-to-side.
PLACEMENT
Fig. 1

0 60
10
20 40
30
50
psi
DATA PLATE
FRONT PANEL
SCREW LOCATION
Installation
Electrical Connection
WARNING: Electrocution may occur when working on ener-
gized circuits. Disconnect power at the main breaker or service
disconnect switch, then lock out and tag it to indicate that work is
being performed on the circuit.
CAUTION: Electrical connections must be made AFTER the plumbing installation.
Damage to the water heaters will occur if the power is turned on without an
adequate water supply.
Follow the instructions below and on the next page to connect power to the machine.
1
Elec. Specs
Rate d
Amp s
Minimu m
Supply
Circui t
Ampacit y
Maximu m
Ov ercurre nt Ov ercurre nt
Protectiv e
De vice
208/60/1 29 40 40
240/60/1 31 40 40
Ele c. Spec s
Rated
Amp s
Minimum
Supply
Circui t
Amp acit y
Maximu m
(Breaker Size) (Breaker Size)
Protecti ve
De vice
208/60/1 22 30 30
240/60/1 24 30 30
383HT 40 ˚F/22 ˚C Rise Electric Booster(4kW) 383HT 70 ˚F/39 ˚C Rise Electric Booster (6kW)
Table - 1
Breaker (Service Disconnect Switch) Size
Fig. 5
CHECK THE ELECTRICAL SPECIFICA-
TIONS ON MACHINE DATA PLATE.
REFER TO THE BREAKER SIZE TABLE
BELOW AND ENSURE THE BUILDING
BREAKER SIZE MATCHES.
REMOVE DISHWASHER LOWER
FRONT PANEL TO ACCESS INTERNAL
COMPONENTS FOR INSTALLATION.
7

Installation
Electrical Connection (continued)
A
B
Fig. 6
GROUND LUG STRAIN-RELIEF
KNOCKOUT
B
A
3
Fig. 7
L1 L2 N
L1 L2 NEUTRAL
208/240V
115V
115V
G
Fig. 8
4
REMOVE THE LEFT SCREW ON THE
FRONT LIP OF THE TERMINAL BOX.
LIFT AND REMOVE THE COVER
TO ACCESS THE TERMINAL BLOCK.
A
B
A 30" / 76 cm SERVICE
LOOP MUST BE PROVIDED
BEHIND THE UNIT FOR
SERVICING.
STOP
STOP
THREAD THE POWER CABLE
THROUGH THE MIDDLE
SLOT IN THE REAR PANEL.
SECURE THE CABLE TO THE
TERMINAL BOX USING THE
PROPER STRAIN RELIEF.
A
B
208-240V / 60Hz / 1 Ø
115V SPLIT CONNECTION
SINGLE PHASE - THREE WIRE PLUS GROUND
WHICH INCLUDES A CURRENT CARRYING
NEUTRAL WIRE RATED MIN 190 °F (88 °C).
CONNECT THE INCOMING
POWER AS SHOWN IN FIG. 8.
8
2
TERMINAL
ENCLOSURE

1. The dishwasher is equipped with a built-in detergent dispensing pump and rinse-aid
dispensing pump. (See the photographs below.)
2. The pumps are located on the lower panel behind the lower-front access panel.
3. Each pump is equipped with 6 feet [1.8 m] of pick-up supply tubing, a stiffener tube, and a
strainer.
4. Ared label marked DETERGENT is attached to the detergent pump inlet tubing.
5. Ablue label marked RINSE-AID is attached to the rinse-aid pump inlet tubing.
6. wash compartment.
7. The detergent supply should be a non-chlorinated liquid detergent.
Initial Start-up
! ATTENTION !
Contact a local chemical supplier for detergent and rinse-aid chemicals. The detergent
should be a non-chlorinated liquid detergent. The chemical dispensing pumps are
adjusted by the chemical supplier.
Chemical Dispensing Pumps
The dispensing pumps are located behind the
front panel.
A stiffener tube, strainer and pick-up
tubing are supplied with the built-in
detergent and rinse-aid pumps.
Detergent Pump
Rinse-aid Pump
9

10
Parameter Setting Instructions
(PARAMETER BUTTONS ON BOARD)
Skip Select Menu
WASH TEMPERATURE
ADJUSTMENT
PRESS BUTTON TO CYCLE
THROUGH AVAILABLE
VALUES
152
1. DETERGENT CONCENTRATION
2. RINSE TEMP
3. WASH TEMP
4. FILL TIME
5. UNITS (F-C)
6. LANGUAGE (English - French)
(LCD SCREEN)
PARAMETER SETTINGS (continued)
To Change Parameters:
1. Push and Hold the“Menu” button.
3. Push menu button to scroll through until desired parameter is reached.
4. Push“CHANGE” button until desired setting is reached.
5. Release and control will return to normal operation (approximately 3 seconds).
Menu Button
push and hold for
menu, then scroll
parameter.
Change
Parameters.
SKIP advances
to the next portion
of a cycle.
0514058 REV A -30-MAR-2021
PARAMETER SETTINGS INSTRUCTIONS
Locate control board shown below:
BOARD SETTINGS
ARE ACCESSED
FROM REAR OF
CONTROL PANEL.
!Displace control
panel safely and
securely.
DO NOT PULL.
Unscrew two
fasteners after
opening door.
Open door.
CAUTION: Parameter changes must be made
by qualified personnel only.
!
wait in cycle
The following parameters may be changed
depending on model:
Viewed from the back of the machine
(Back of the board shown below)

Installation
1. Place the rinse-aid pick-up tube in a full container of rinse aid.
2. Push the dishwasher power switch ON. The dishwasher will automatically fill with
water.
3. Wait twenty minutes or until the temperature display indicates a minimum of 1
50°F/66°C.
4. The rinse-aid pump will prime itself as the machine operates during the automatic
cycles.
Prime the Rinse-aid Pump
Rinse-Aid Volume Adjustment
To adjust the rinse aid volume, turn dial. Turn counter-clockwise to increase volume and turn
clockwise to decrease volume.
Fig. 16
Fig.15
11

Operation
Control Panel Description
A
A - ON-OFF/Drain power switch tur
turned on and the automatic drain cycle when tur
B - LCD screen displays machine status: including temperatures, operation, heating and autoclean
functions such as, wait, and in-cycle. TEMPERATURE DISPLAY indicates water temperature and
displays operation codes for the operator. The minimum wash water temperature is 150°F/66°C.
The minimum/maximum final rinse temperature is 180-195°F/ 82-91°C.
WAIT INDICATOR light illuminates during the initial fill and as the booster heats to the minimum
180°F/82°C. The indicator light goes out when 180°F/82°C is achieved.
C - DETERGENT PRIME SWITCH when pressed, runs the detergent dispensing pump to prime the
pick-up hose during initial set-up and whenever the detergent supply container is changed.
D - START PUSH BUTTON Pressing the START button initiates an automatic timed cycle and illuminates
the IN CYCLE light.
E - PRESSURE GAUGE indicates the final rinse water flowing pressure during the initial fill and
the automatic final rinse cycle. The proper pressure reading is 20-22 PSI. The pressure gauge
is located on the left side of the lower front panel.
10
0
30
20
PSI
60
50
40
PRESSURE
20-22 PSI
E
Fig. 18
BCD
12
Nexus Control Panel
Fig.10
UC65e

Operation
Operation - Loading Wares
CAUTION: Ferrous metals in the form of metal scrub pads must not be used
to clean wares or dishwasher surfaces. Avoid putting any type of ferrous*
metal in the machine. (*ferrous metals rust.)
Fig. 19
REMOVE LARGE FOOD PARTICLES AND DEBRIS BEFORE LOADING WARES.
1
LOAD PLATES IN A PEG RACK. BOWLS AND GLASSES IN A FLAT-BOTTOM RACK.
LOAD SILVERWARE IN A SINGLE LAYER IN A FLAT-BOTTOM RACK.
LOAD POTS, PANS, AND UTENSILS UPSIDE DOWN IN A FLAT-BOTTOM RACK.
2
DO NOT OVERLOAD RACK AND ONLY WASH ONE RACK AT A TIME.
3
NEVER WASH FOREIGN OBJECTS SUCH AS DISH RAGS OR MOPS.
4
13

Operation
The screen displays the operational status of the machine throughout the cycle.
1. Machine is filling.
2. Wait light is illuminated.
3. Progress bar shows fill time
remaining.
1. When power switch is turned ON,
system information screen will
show briefly.
2. This shows firmware version,
parameter settings, and cycle
counts.
1. Red thermometer indicator
shows booster tank is heating.
2. Wait light remains illuminated.
3 Wait light indicates cycle is
pending.
4. Progress bar shows remaining
heat time.
1. Booster heater has achieved
temperature
2. Blue thermometer bar shows the
wash tank heat is active.
3. Wait light is out and READY
shows a cycle may begin.
1. Ready indicates the machine will
wash.
2. 155 °F indicates the wash tank
temperture.
OPERATIONAL DISPLAY
• Start-up Sequence
14

Operation
Operational Display (continued)
WASH
1. The status indicator
shows cycle progress.
2. In-cycle light is
illuminated.
WASH CYCLE
DRAIN
1. When the wash
cycle is complete the
machine will drain all
of the water and refill
with fresh hot water.
RINSE
1. Display changes to
red and indicates
rinse temp.
15