CMA Dish Machines UC65e Operator’s Manual

CMA Dishmachines 12700 Knott A venue Garden Grove, CA 92841

Toll Free: 1- (800) 854-6417 Fax: 1- (714) 895-2141

Installation/Operation Manual with Service Re

Undercounter High Temperature Dishwasher

Models:

UC65e

placement Parts

CMA Dishmachines 12700 Knott Avenue Garden Grove, CA 92841 Toll Free: 1 (800) 854-6417 Fax: 1 (714) 895-2141

UC65e

Machine Serial No.

Issue Date: 11.18.13

Manual P/N 0512865 rev. D

For machines beginning with S/N W090217876 and above

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:______________________

National Service Department

CMA Dishmachines 12700 Knott Avenue Garden Grove, CA 92841 Toll-free: 1 (800) 854-6417 Fax: 1 (714) 895-2141

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.

Revision History

• The Revision History can contain part number changes, new instructions, or information that was not available at print time.

• We reserve the right to make changes to these instructions without notice and without incurring any liability by making the changes..

• Equipment owners may request a revised manual, at no charge, by calling CMA Dishmachines at 1 (800) 854-6417.

Revision Revised Serial Number Revision Date Pages Effectivity Description

6.04.09 All W090217876 Released First Edition

3.15.11 22-23 W090217876 Added motor fan cover to parts list

1.04.11 31 W090217876 Item 5 changed to P/N 0513110 33 Item 6 changed to P/N 0512120 Item 18 changed to P/N 0312840 35 Item 13 changed to P/N 0512855

6.09.11 44-45 W090217876 Item 13 changed to P/N 0312924 46-47 W090217876 Changed door assembly to P/N 0713141

4.19.13 5 All Added hose barb to instructions 24-55 W120631743 Revised pressure gauge piping 26-27 W120631743 Added P/N 109069 thermostat

  All  Revisedll/draintimer,P/N0713133

30-31 W120631743 Revised pressure gauge piping 34-35 All Added hose barb P/N 0512231  46-47 All  AddedDoordripseals,P/N0512953 and P/N 0512954 53-62 All Added parts installation instructions

6.25.13 2-3 All Added hard wiring info to installation

11.18.13 All All Converted 0xxxxxx P/N's to CMA standards

Model Description

UC65e

High temperature hot water sanitizing dishwasher with built-in 40°F/22°C rise booster heater. 208-240VAC/60/1

Table of Contents

Model UC65e Undercounter Dishwasher

Revision History...................................................................................................................i

Model Descriptions ..............................................................................................................ii

Installation ..............................................................................................1

Receiving ....................................................................1

Electrical Connections ................................................2

Water Connections .....................................................4

Drain Connections ......................................................5

Initial Start-up ..........................................................................................6

Booster Fill Switch ......................................................6

Assembly ....................................................................8

Chemical Dispensing Pumps ......................................9

Priming ..............................10

Adjusting............................11

Operation ................................................................................................................13

Normal Wash Mode ....................................................13

Saf-T-Temp .................................................................14

Cleaning and Maintenance ........................................................................15

Maintenance ...............................................................18

Troubleshooting ..........................................................19

Service Replacement Parts .......................................................................21

Electrical Schematic..............................................................................................51

Timer Chart

.............................................................................................52

Service Parts Installation Instructions

Pressure Gauge Piping Change .................................56

Fill/Drain Timer P/N 0713133 .....................................58

Fill/Drain Timer - Theory of Operation ........................................................62

Cleaning ......................................................................15

.......................................................53

Booster Thermostat P/N 109069 ...............................54

iii

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Installation

Counter-top

Wall

3" [8cm] Min.

34"

[86cm]

Min.

Floor

Receiving

NOTE:

The installation of your dishwasher must be performed by qualied service personnel. Problems due to improper installation are not covered by the Warranty.

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 accessories that may have shipped with your dishwasher.

4. Move the dishwasher near its permanent location.

NOTE:

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.

CAUTION:

Be careful when lifting and moving the dishwasher to prevent damage to the machine.

NOTE:

The installation of the dishwasher must comply with local health codes.

5. Compare the installation site utility connections with the dishwasher utility connections and make sure that they are the same.

6. The dishwasher can be installed as a free-standing unit or under a built-in counter-top.

The typical counter-top height in most locations is 34" [86cm].

7. Under counter installations should provide storage space for the dishwasher chemical supply containers. Containers must not be placed higher than 10" [25cm] above the oor.

8. Chemical supply containers should be placed as close as close to the machine as possible.

9. Place the dishwasher in its permanent location.

10. The dishwasher has 4 adjustable feet

for leveling.

11. Level the dishwasher front-to-back and

side-to-side.

Installation

Electrical Connections

WARNING:

CAUTION:

Permanent damage to the dishwasher may occur if it is improperly connected to the main electrical supply.

Never install a power cord and plug to the dishwasher nor connect the dishwasher to a standard or GFI electrical outlet.

GFI

The dishwasher must be hard wired to a dedicated appropriately

sized circuit breaker or service disconnect switch.

Electrocution or serious injury may result when working on an energized circuit.

Disconnect power at the main breaker or service disconnect switch before working on the circuit.

Lock-out and tag the breaker to indicate that work is being performed on the circuit.

ATTENTION:

A qualied electrician must connect the main incoming power to the dishwasher in accordance with all local codes and regulations or in the absence of local codes in accordance with the National Electrical Code

Main Terminal Block

The Main Terminal Block (MTB) is located on the left-rear corner

of the electrical panel.

Installation

To Dishwasher Main Terminal Block

Hard Wiring From Rear of Machine

GRD

Cable Bracket

Electrical Connections

1. Refer to the connection diagram below:

2. Machines require a 3-wire plus ground supply which includes a current carrying neutral.

3. Do not use a power cord and plug nor connect to a standard or Ground Fault Interrupter, (GFI), electrical outlet.

4. The dishwasher must be hard wired to a junction box or service disconnect switch.

5. Power connections must be made at the Main Terminal Block (MTB) on the dishwasher. The MTB is located on the left-rear corner of the electrical panel behind the front access panel. (See the illustration at the bottom of page 2.)

To Connect Main Power to the Dishwasher:

1. Remove the lower front access panel of the dishwasher.

2. Locate the electrical mounting panel on the right-side of the machine. Remove the retaining nut at the top of the panel that holds the

panel in place.

3. Lower the panel and pull it forward to gain access the MTB.

4. Feed the power cable through the cable hole located on the right side, as viewed from the front of the machine,

SINGLE PHASE POWER CONNECTION

into the interior of the machine.

115/208-240VAC/60/1

GFI

5. Make sure the cable passes through the cable mounting bracket located near the front-center of the

base and secure the cable with a cable connector.

6. Connect the ground wire to the base of the dishwasher with the ground screw provided next to the

cable mounting bracket.

7. Feed the remaining cable wires to the Main Terminal Block and connect according to the connection

diagram to the right.

GRD

L1 L2 N

115VAC

208-240

VAC

HOW TO CONNECT POWER

1. Check the data plate on the front of the

dishwasher for the voltage of the machine.

2. Remove the lower-front access panel.

3. Lower the electrical component bracket.

4. Feed the power cable from the rear of the dishwasher to the center of the machine and through the cable bracket.

5. Connect the ground wire to the base of the dishwasher using the ground screw located near the bracket.

6. Feed the power leads to the terminal block.

Hard wire the dishwasher using the dishwasher

cable bracket.

7. Connect L1, L2 and a currrect-carrying neutral to the Main Terminal Block.

8. Main Power connections are complete.

Installation

Water Connections

Note

Plumbing connections must comply with national, local plumbing and sanitary codes.

IMPORTANT

Make sure that the exible water supply and drain hoses are not kinked.

1. All models have a 6 ft. exible hot water ll hose with a 3/4" GHT connector.

2. A 1/2" or larger main incoming supply line should be installed to the dishwasher.

3. A 1/2" or larger shut-off valve should be installed in the water supply line as close to the dishwasher as possible for service.

4. The hot water supply must provide a minimum of 140°F/60°C, measured at the dishwasher for the 40°F/ 22°C rise booster.

5. For the 70°F/39°C rise booster the hot water supply must provide a minimum of 110°F/43°C measured at the dishwasher.

Drain Connections

ATTENTION

Do not connect the drain hose to a disposer. The dishwasher will not drain correctly.

1. The dishwasher has a 6ft. 3/4" I.D. drain hose. The maximum drain height

connection must not exceed 3 ft.[9 m].

The recommended drain height is 17" [.4 m] or less above the oor.

2. The drain hose is secured to the rear of the machine by a clamp to maintain a

goose-neck bend in the drain hose. DO NOT REMOVE THE DRAIN HOSE RETAINING CLAMP.

DO NOT STRETCH THE DRAIN HOSE.

3. A 3/4" hose barb tting is strapped to the drain hose to use in connecting the drain hose to building drain line. The service part number for the hose barb is P/N 0512321.

Installation

4. Install the drain hose to a "WYE" drain tting. Connection to a "TEE" tting will prevent the dishwasher from draining completely.

5. The maximum drain ow is 8 U.S. gpm/7 Imp. gpm/30 L.P.M.

6. Make sure the drain hose does not kink. Kinks will prevent the dishwasher from draining completely, and the dishwasher will overow out the front door.

NOTE: DO NOT CONNECT THE DRAIN HOSE TO A DISPOSER.

THE DISHWASHER WILL NOT DRAIN CORRECTLY.

The dishwasher flexible drain hose

must be connected to a WYE fitting.

Do not connect the dishwasher

flexible drain hose to a TEE fitting.

Initial Start-Up

OFF

BOOSTER

FILL

RINSE

TEMPERATURE

WASH

Booster Fill Switch

Filling the Booster

ATTENTION

VERIFY THE CORRECT VOLTAGE IS SUPPLIED TO THE MACHINE

THE CORRECT SUPPLY VOLTAGE IS 115/208-240VAC/60/1.

(Refer to the diagram on page 3.)

Note:

The dishwasher contains a built-in booster heater that was drained prior to shipment

and must be lled with water before operating the dishwasher.

Booster Fill Switch

The booster heater is lled using the Booster Fill Switch. It is located behind the lower front access panel

and on the left-side of the bracket that holds the chemical dispensing pumps (see the photos below).

Fill the booster heater:

1. Make sure that the dishwasher power switch is OFF.

2. Remove the lower front access panel.

3. Locate the booster ll switch. It is in the left-center of the electrical component panel.

4. Make sure the Booster Fill Switch is in the middle position, (OFF).

5. Turn the water supply and the main power supply on.

DO NOT TURN THE DISHWASHER POWER SWITCH ON.

A) Identify the booster ll switch.

Initial Start-Up

OFF

BOOSTER

FILL

RINSE

TEMPERATURE

WASH

Filling the Booster (continued)

B) Press and hold the Booster Fill Switch down to the BOOSTER FILL position until you hear the water spraying inside the dishwasher wash tank,

then release the switch.

RINSE

TEMPERATURE

OFF

BOOSTER

FILL

C) Push the switch up to the ON position and release.

The booster tank is lled.

WASH

Initial Start-up

Check List

1. Remove any protective lm from dishwasher. Check the interior for foreign material.

2. Make sure that the dishwasher is permanently located.

3. Make sure that all utility connections are complete.

4. Make sure that the exible drain hose and the hot water ll hose are not kinked.

5. Make sure that the chemical supply containers are full and that the chemical pick-up tubes

are installed in the proper containers.

6. Make sure that the sump lter is in place.

7. Make sure that the overow tube is installed and rmly seated in the sump.

8. Make sure that the spray arms are in place and that they spin freely.

9. Fully close the dishwasher door.

10. Turn hot water supply on and check for leaks in the main water supply piping connected

to the dishwasher.

IMPORTANT

During the initial fill, the flowing pressure of the incoming water

is set to 20-22 PSI.

Install the scrap screen, overow tube, and spray arms.

Make sure the spray arms turn freely.

Initial Start-up

RINSE TEMPERATURE

WASH

OFF

BOOSTER

FILL

Detergent Pump

Rinse-aid Pump

Chemical Dispensing Pumps

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.

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. A red label marked DETERGENT is attached to the detergent pump inlet tubing.

5. A blue label marked RINSE-AID is attached to the rinse-aid pump inlet tubing.

6. The detergent enters the wash tank compartment through a tting at the right rear of the wash

compartment (see the illustration on the next page).

7. The detergent supply should be a non-chlorinated liquid detergent.

8. The rinse-aid enters the nal rinse piping through a tting located on the upper-left rear side of the dishwasher. The tting is located near the vacuum breaker (see the illustration on the next page).

The dispensing pumps are located behind the

lower-front access panel.

A stiffener tube, strainer and pick-up

tubing are supplied with the built-in

detergent and rinse-aid pumps.

9. The chemical supplier will choose the appropriate liquid rinse-aid.

10. Your chemical supplier should adjust the dispensers for the supplied product.

11. Place the chemical supply containers as close to the dishwasher as possible.

12. Do not elevate the chemical containers above the nished oor.

Initial Start-up

Detergent Injection Point

Chemical Dispensing Pumps (continued)

Chemical Injection Points

The illustrations below show the location of the detergent and the rinse-aid injection points.

Detergent enters the wash tank compartment through a

fitting on the rear wall of the wash tank compartment.

Rinse-aid Injection Point

The rinse-aid enters the nal rinse piping at the top-rear of

the dishwasher near the vacuum breaker.

Initial Start-up

Chemical Dispensing Pumps

Priming the Chemical Dispensing Pumps

The chemical dispensing pumps must be primed before the dishwasher is operated. A 2-position PRIME switch is located on the front control panel to do this. The Detergent dispensing pump is primed when the Prime switch is pushed UP to the DET position. The Rinse-aid dispensing pump is primed when the Prime switch is pushed DOWN to the R/A position (see below).

DET

R/A

PRIME

POWERSTARTDRAINEXT. WASH

OFFON

Chemical Dispenser Prime Switch

1. Make sure the chemical containers are full and the correct pick-up tubes are in the containers.

2. Turn the dishwasher power switch ON. The switch will illuminate and the dishwasher will ll with water.

3. Once the ll is complete, open the dishwasher door, then push and hold the prime push button UP to the DET (detergent) position until detergent is observed entering at the right-rear of the wash tank compartment.

4. Push and hold the prime push button DOWN to the R/A (rinse-aid) position for 30-seconds. Release the push button.

5. Close the door.

Initial Start-up

CCW

Chemical Dispensing Pumps

Adjusting the Chemical Dispenser Pumps

The amount of detergent and rinse-aid that are dispensed during the dishwasher cycle are controlled by adjustable cams on the timer assembly. Variables such as the type of chemicals used and the hardness of the water supply often require that the timer cam settings must be changed. It is recommended that the chemical supplier make these adjustments.

(Refer to the illustration below).

Note:

Only the Detergent and the Rinse-aid cams are adjustable. Do not attempt to adjust any other timer cam.

To adjust the chemical dispensing pump timer cams:

1. Remove the lower-front access panel. The timer assembly is located on the right-side of the electrical component panel.

2. Make sure the dishwasher power is OFF.

3. The detergent timer cam has 2 halves. Hold the stationary right-half of the cam and turn the left-half of the cam counter-clockwise to increase the amount of detergent that is dispensed.

Turn the left-half clockwise to decrease the detergent dispensed.

4. The rinse-aid timer cam has 2 halves. Hold the stationary left-half of the cam and turn the right-half

of the cam counter-clockwise to decrease the amount of rinse-aid that is dispensed.

Turn the right-half clockwise to increase the amount of rinse-aid dispensed.

HOMING

CAM

WASH

PUMP

DRAIN

PUMP

RINSE

VALVE

DET.

PUMP

RINSE

AID

PUMP

EXTEND

WASH

SAFE-T

TEMP

Operation

Normal Wash Mode

Follow the instructions below to operate the dishwasher in a Normal Wash Mode. A Safe-T

-Temp feature

holds the dishwasher in a wash mode if the booster heater temperature is below 180ºF/82ºC.

1. Turn the main power on at the main circuit breaker.

2. Install the sump lter, overow tube and spray arms.

3. Make sure the exible drain hose and the exible ll hose are not kinked,

then turn the water supply on.

4. Close the dishwasher front door.

5. Push the dishwasher Power Switch to the ON position.The power switch will illuminate and the machine will ll with water.

6. Check the pressure gauge as the machine lls and make sure the incoming water pressure is between 20-22 psi.

7. Wait 15-minutes for the WASH temperature gauge to indicate a minimum of 150ºF/66ºC.

At the beginning of the day, run 2 empty cycles before checking the final rinse

operating temperature. The first cycle will take longer than normal because the

water temperature in the booster is low.

ATTENTION

8. Load soiled wares into the dish rack. Place plates, glasses, cups and bowls in a peg rack. Place utensils in a single layer in a flat-bottom rack. Place pots and pans in a flat-bottom rack.

Do not overload the dish racks.

9. Slide 1 dish rack into the wash compartment making sure that wares do not interfere with the

rotating spray arms. Do not wash more than 1 dish rack at a time.

10. Close the front door fully, then press and hold the START BUTTON for 1-second. The green

in-cycle light will illuminate and the wash cycle will begin. The wash cycle time runs for approximately 1-1/2 minutes. (continued on next page)

20-22 PSI

150°F/66°C

180-195°F

82-91°C

120

140

100

160

180

200

220

CHAMPION INDUSTRIES, INC.

WINSTON-SALEM,NC

PSI

Final Rinse

Pressure

The pressure and temperature gauges are located on the lower-left corner

of the lower-front access panel.

100

Wash

Temperature

120

100

140

100

Final Rinse

Temperature

160

180

200

220

Operation

Normal Wash Mode

11. Opening the door when the dishwasher is in-cycle will stop the dishwasher. The cycle will resume

automatically when the dishwasher door is closed fully.

12. The nal rinse cycle begins at the end of the wash cycle and runs for approximately 15-seconds Check the RINSE temperature gauge during the nal rinse and make sure that it indicates a minimum of 180ºF/82ºC. The acceptable range of operation is180-195ºF/82-91ºC.

13. At the end of the rinse cycle, the in-cycle light will go out. Open the door and remove the clean

rack of wares. Repeat steps 8-12 for additional dish racks.

14. Refer to the Cleaning Instructions, "After Each Meal Period or every 8 Hours of Operation", on

page 15 for the procedures to drain and clean the dishwasher.

Safe-T-Temp Mode

The nal rinse water temperature must be a minimum of 180ºF/82ºC during the final rinse cycle to ensure that all wares are sanitized. If for any reason, the hot water temperature in the booster tank cannot provide this temperature,

the dishwasher will enter a Safe-T-Temp Mode of operation and extend the cycle time.

The Safe-T-Temp changes the Normal Operation Mode as described below:

1. The Safe-T-Temp constantly monitors the water temperature inside nal rinse booster.

2. If the temperature inside the booster heater falls below 180ºF/82ºC then the Safe-T-Temp will extend the wash cycle time until the booster heater water temperature reaches the proper

temperature.

3. The in-cycle light will remain illuminated during the Safe-T-Temp Mode.

4. The RINSE water temperature gauge must be monitored to ensure that a minimum of

180ºF/82ºC is maintained during the rinse cycle.

5. The temperature range for the final rinse water is180-195ºF/82-91ºC.

6. An extraordinarily long wash cycle may indicate a low incoming water temperature or a problem with the booster heater operation.

(continued)

DO NOT REMOVE WARES UNTIL THE FINAL RINSE CYCLE HAS SANITIZED THE WARES AND THE GREEN CYCLE LIGHT GOES OUT.

Extended Wash Mode

The Extended Wash Mode is used to wash heavily soiled items such as pots, pans and other wares that require more washing time than the standard 100-second Normal Wash Mode.

The dishwasher will remain in the Extended Wash Mode until the operator exits the mode.

1. Load a dish rack into the dishwasher, close the door.

2. Press and hold the START button for 1-second then release.

3. The green in-cycle light will illuminate and the dishwasher will begin a normal wash cycle.

4. Press the EXT WASH button to place the dishwasher in the Extended Wash Mode.

5. The green extended wash light will illuminate indicating that the machine is in the

Extended Wash Mode.

6. The dishwasher will continue to wash until the operator presses the EXT WASH button again.

7. Press the EXT WASH button. The green extended wash light will go out indicating that

the dishwasher has returned to the Normal Wash Mode.

8. The dishwasher will nish the wash cycle and perform a nal rinse of the wares.

Cleaning and Maintenance

Cleaning

After Each Meal Period or every 8 Hours of Operation.

1. Press the lighted power switch to the OFF position. The power switch light will go out.

2. Open the door and remove the overow tube from the wash tank sump.

3. Inspect and clean the overow tube rubber seal

4. Close the door.

5. Push and hold the drain switch until all of the water has drained.

6. Remove the sump lter carefully to keep the soil or waste particles from falling into the sump.

7. Clean the sump lter by rinsing with clean water. Be sure to back-ush the lter.

Do not strike the lter against solid objects.

8. Check the sump for foreign material and clean as required.

9. Replace sump ter and the overow tube.

10. Make sure that spray arms turn freely.

11. Check the chemical containers and rell as required.

12. Close the door and turn the ON/OFF switch to ON and return to normal operation mode.

Heating Element

Overflow Tube

Overflow Seal

Sump Filter

Sump

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