Champion I-UH Service Manual

Technical Manual

Undercounter
Dishwasher

Model
I-UH

Manual

P/N 0509635 REV. D

February, 2003

P.O. Box 4149
Winston-Salem, NC 27115-4149

Champion Industries, Inc.

Fax: [phone]

Machine Serial No.

The Dishwashing Machine Specialists

Champion

®

Complete the information below so it will be available for quick reference.

Model Number __________________________ Serial Number ________________________

Voltage and Phase ______________________________________________________________

Champion Parts Distributor __________________________________ Phone _____________
(if applicable)

_____________________________________________________________________________

Champion Service Agency___________________________________ Phone _____________

_____________________________________________________________________________

Champion Service:

Phone: [phone]

1-800-858-4477

Fax: [phone]

NOTE: When calling to order parts, be sure to have the model number, serial number, voltage,
and phase of your machine, along with your customer account number.

COPYRIGHT © 2003 by Champion Industries, Inc.

REVISIONS

Revision History

Revision Revised Serial Number Comments

Date Pages Effectivity

02/28/97 All 7791 Issue of manual and replacement parts lists.

02/28/00 38 7791 Revised electrical schematic.

08/22/01 18, 19 — Revised part numbers for hose clamps and hose.

11/04/02 15 — Revised part number for front panel.

11/04/02 21 — Revised part number for pump assembly.

11/04/02 25 — Revised part number for booster tank and tank plug.

11/04/02 35 — Revised part numbers for control cabinet parts.

Added contactor and fuses for control transformer.

2/5/03 35 — Replaced 108391 with 113622 thermometer.

CONTENTS

CONTENTS

Page

INTRODUCTION....................................................................................................................................... 1

GENERAL .................................................................................................................................................. 2

INSTALLATION ........................................................................................................................................ 4

Unpacking ............................................................................................................................................ 4

Electrical Connections.......................................................................................................................... 4

Plumbing Connections ......................................................................................................................... 5

Detergent .............................................................................................................................................. 5

Rinse-Aid ............................................................................................................................................. 5

Completing Installation ........................................................................................................................ 6

OPERATION .............................................................................................................................................. 7

Operation Summary ............................................................................................................................. 7

Operation Procedures ........................................................................................................................... 7

MAINTENANCE........................................................................................................................................ 9

Cleaning Schedule................................................................................................................................ 9

Deliming............................................................................................................................................... 10

Deliming Process.................................................................................................................................. 10

Maintenance Schedule.......................................................................................................................... 11

TROUBLESHOOTING .............................................................................................................................. 12

REPLACEMENT PARTS........................................................................................................................... 13

ELECTRICAL DIAGRAMS ...................................................................................................................... 37

TIMER CHARTS AND DIAGRAMS........................................................................................................ 39

LIST OF FIGURES

Figure 1—Track and Panel Assembly......................................................................................................... 14

Figure 2—Door and Switch Assembly........................................................................................................ 16

Figure 3—Tank/Drain Assembly ................................................................................................................ 18

Figure 4—Pump Assembly ......................................................................................................................... 20

Figure 5—Wash System Assembly............................................................................................................. 22

Figure 6—Booster Assembly and Water Inlet Piping................................................................................. 24

Figure 7—Water Inlet Piping (No Booster Assembly) ...............................................................................26

Figure 8—Fill System ................................................................................................................................. 28

Figure 9—Detergent Pump Assembly......................................................................................................... 30

Figure 10—Rinse-Aid Pump Assembly...................................................................................................... 32

CONTENTS

Figure 11—Control Panel Assembly........................................................................................................... 34

Figure 12—Electrical Diagram, I-UH (50Hz)............................................................................................. 38

Figure 13—Timer Chart and Diagram, I-UH.............................................................................................. 39

1

INTRODUCTION

INTRODUCTION

Welcome to Champion.

Thank you for choosing Champion and for allowing us to take care of your dishwashing needs.

This manual covers the I-UH model undercounter dishwasher.

Your machine has been completely assembled, inspected, and thoroughly tested at our factory to
eliminate problems at installation before it was shipped to your installation site. This manual
provides:

•Warranty information

• Installation and operation procedures

• Maintenance instructions

•Troubleshooting guide

• Replacement parts lists.

Complete and return your warranty registration card as soon as possible.

Champion constantly improves its products; therefore, specifications contained in this manual
may have changed.

For your protection, factory authorized parts should always be used.

Replacement parts may be ordered from your Champion authorized parts distributor or service
agency. When ordering parts, supply the model number, serial number, voltage and phase of your
machine, the part number, part description, and quantity.

2

GENERAL

GENERAL

This manual covers the Champion undercounter dishwashing machine. This machine is fully
automatic and is equipped with a 1/2 H.P. pump motor. All models are available for mounting
directly to the floor or on optional stands (see accessories listed on page 4).

Standard equipment includes:

-Automatic tank fill -Wash/rinse arm

-Common utility connections -Two dish racks (peg and flat)

-120 Volt control circuit -Exclusive vent design for

-Convenient, easy to use controls venting of condensation

-Door latch activated start switch -Stainless steel heavy-gauge construction

-Pumped drain (to 3 ft/1m) (vertical)

This series of dishwashers is available in the following model:

Model Number

I-UH

• The I-UH model is a high temperature (82°C/180°F rinse) sanitizing model with booster.

• The I-UH model is available as a high temperature (82°C/180°F rinse) sanitizing model
without booster.

Options

• Kit 512 - Detergent pump (P/N 0709624)

• Kit 504 - Top and side panels (P/N 0708756)

• Kit 505 - Top panel only (P/N 0708744)

• Kit 506 - Left side panel only (P/N 0708745)

• Kit 507 - Right side panel only (P/N 0708746)

• Kit 508 - Rinse aid pump kit (P/N 0708754)

• Kit 510 - Extended reach pumped drain kit (P/N 0708766)

• Kit 511 - 30°C/70°F temperature rise booster (P/N 0708753)

(for 49°C/110°F supply water).

GENERAL

Accessories

• 17RS - 17" rack stand (raises working height and adds rack storage)

• 17T - 17" cabinet (raises working height and adds storage)

• CST - Combination sink/table (scraping and sorting station)

• 101285 - Dish Rack (Peg Rack)

• 101273 - Silverware Rack (Flat Bottom Rack)

Electrical Power Requirements

Booster Machine Power Requirement

Model Voltage Rise Full Load Amp (125% Service Factor)

I-UH 115/50/1 N/A 7 15

(without booster)

I-UH 208/50/1 40 31 39

I-UH 240/50/1 40 34 43

I-UH 208/50/1 70 42 53

I-UH 240/50/1 70 48 60

NOTE:

208-230V/50Hz/1PH electrical supply service must be a 2-wire plus ground for connection
as shown.

—2-Wire Plus Ground Diagram

208-230V

GND

L2L1

3

4

INSTALLATION

INSTALLATION

Unpacking

WARNING:

Care should be taken when lifting the machine to prevent damage.

1. Immediately after unpacking your machine, inspect for any shipping damage. If damage is
found, save the packing material and contact the carrier immediately.

2. Remove the dishwasher from the skid. Adjust the feet if required, then move the machine to
its permanent location.

3. Level the machine (if required) by placing a level on the top of the machine and adjusting
the feet. Level the machine front-to-back and side-to-side.

CAUTION:

After locating your machine, the installation must meet local health codes. An example may
be to seal your machine to the floor using a good grade of silicone sealant.

Electrical Connections

WARNING:

Electrical and grounding connections must comply with the National Electrical Code
and/or Local Electrical Codes.

WARNING:

When working on the dishwasher, disconnect the electric service and tag it to indicate work
is being done on that circuit.

1. The electrician should compare the electrical specifications on the machine electrical rating
label (located on the lower left front panel) to the electrical power supply before connecting
the machine to the incoming service at a fused disconnect switch.

NOTE:

The 208-240V/50Hz/1PH electrical supply service for this machine must be a
2-wire plus ground service.

2. On the 208V-240V models, a terminal block is provided on the left front side of the
machine (located behind the front panel) for electrical service connections. A fused
disconnect switch or circuit breaker (supplied by user) is required to protect each power
supply circuit.

!!!

!

5

INSTALLATION

Plumbing Connections

CAUTION:

Plumbing connections must comply with local sanitary and plumbing codes.

Water Connections

1. Connect the hot water supply (60°C/ 140°F Min) to the 1/2" I.D. fill hose provided. The fill
solenoid valve is equipped with a flow control that will accept water pressures from 172

kPa/25 psi to 665 kPa/95 psi.

2. Install a manual shut-off valve with 3/4" garden hose connection in the water supply line
close to the machine to accommodate installation and servicing the machine. The shut-off
valve should be the same size or larger than the supply line.

3. The fill solenoid valve is equipped with a built-in strainer to protect from particles in the
water supply.

Drain Connections

1. All Models are supplied with a flexible 5/8" I.D. drain hose, which must be connected to a
1-1/2" drain using a wye (Y) fitting close to the machine.

Detergent/Chemicals

Use a qualified detergent/chemical supplier for your detergent, rinse aid, and chemical
sanitizer needs.

1. Your machine may be fitted with an optional liquid detergent dispensing pump. Insert the
labeled detergent pickup tube into the detergent container. The pickup tube has a strainer on
the end to prevent crystallized chemical from clogging the supply lines.

2. The cycle timer located in the main control cabinet is equipped with adjustable cams for the
chemical dispensing pump(s). The cams control the length of time that the pumps operate.
A qualified person may adjust the cam settings if necessary. Refer to the timer chart
diagram(s) at the end of the manual for timer cam locations. Factory time settings are only
approximate. Have your chemical supplier check the concentration and make the necessary
adjustments.

NOTE:

A nonchlorinated detergent is recommended for your dishwasher.

Rinse Aid

1. An optional rinse aid pump may be added for all models. Insert the labeled Rinse Aid
pickup tube into the rinse aid container. Contact your local chemical supplier for adjustment
to ensure proper dosage.

!

6

INSTALLATION

Completing Installation

1. Remove any foreign material from inside the machine.

2. Center the scrap screen over the sump opening.

3. Prime the booster using the following procedure (if applicable).

CAUTION:

To prime the booster, the following procedure must be followed AFTER the electrical
and plumbing connections have been made and water has been turned on.

a. Open the dishwasher door.

b. Make sure the On-Fill/Off-Drain switch is in the Off-Drain position.

c. Push the Detergent/Rinse prime switch “down” to the Rinse position.

d. Hold the prime switch in the Rinse position until you observe water entering the wash

tank. The water inlet port is on the lower right side of the tank interior.

e. Release the switch. You have completed the booster priming process.

WARNING:

Failure to prime the booster may cause damage to the booster
elements and other electrical components and will void the
warranty.

4. Check the machine for water leaks by depressing the ON/FILL switch on the front panel,
then close and latch the door. This allows the tank to automatically fill by using the rinse
cycle. Check for leaks.

5. Open the door and check the water level. The water level should be 1/2" over the scrap
screen.

6. Depress the OFF/DRAIN switch, close and latch the door to drain the machine. This allows
the machine to complete the 105-second wash and drain cycle. Check the drain plumbing
for leaks or kinks in drain hose.

7. Replace the front panel. Installation is now complete.

!

!

IN

CYCLE

OFF

DRAIN

ON

FILL

DET

RINSE

00034

7

OPERATION

OPERATION

Operation Summary

The following is a summary of your Undercounter Dishwashing Machine operating cycle:

1. The cycle begins when you close and latch the door.

2. The green cycle lamp lights and the wash pump starts.

3. The pump runs during the wash cycle for approximately 80 seconds.

4. The wash pump stops, and the drain valve is opened.

5. After a 2-3 second pause, the pump drain cycle begins and continues for approximately 30
seconds.

6. After a 2-3 second pause, the fill valve opens, and the pump starts for the rinse cycle.

7. Within approximately 25 seconds, the rinse cycle is complete. The pump stops, the green
cycle lamp turns off, and the cycle is complete.

8. Open the door and remove the rack of clean ware. The door must remain open for 5

seconds to allow the timer to reset before starting another cycle.

Daily Operation Procedures

The operation of your dishwasher will be more efficient when these procedures are followed:

1. Check that the spray arm and scrap screen are in place.

2. Close and latch the door. Push the ON/FILL switch to the ON position. The tank will begin
filling with water. This procedure is followed only when the tank is empty.

3. When the tank is full, check the wash tank temperature gauge. Minimum wash temperatures
are:

• I-UH – 66°C/150°F

CAUTION:

If the wash water temperature falls below the minimums listed
above, you must run an empty cycle to refill with fresh hot water.

4. Scrap and preflush all items to be washed, and load the items into the rack. DO NOT
OVERLOAD the rack. Wash only one layer of silverware in a rack.

5. Open the door and insert the rack into the machine.

6. Close and latch the door. This will start the wash cycle. The green cycle lamp located on the
front control panel will light. This lamp will remain on until the entire wash and rinse cycle
are completed.

!

8

OPERATION

NOTE:

The machine may be stopped at any time by opening the door. When restarted, the cycle
does not start over. It will continue from the point at which it was interrupted.

7. Check the rinse temperature during the final rinse (120 seconds into cycle). The rinse
temperature must be 82°C/180°F minimum for model I-UH.

8. The pump will automatically stop and the green cycle light will turn off indicating the cycle
is completed.

9. Open the door and remove the rack.

10. Repeat steps 4-9 for additional cycles. Machine operation is automatic.

11. CLEAN the scrap screen after every meal period. During heavy usage, the scrap screen
should be cleaned more frequently.

CAUTION:

Poor machine performance and/or damage to the machine can occur if the scrap
screen becomes clogged with soil or waste particles.

12. To drain water out of the tank at the end of each day. Flip OFF/DRAIN switch to DRAIN
position. Close and latch door. Machine will drain completely in approximately 105
seconds.

CAUTION:

DO NOT LEAVE WATER IN THE TANK OVERNIGHT. Water left in the tank
overnight will allow harmful chemicals to deteriorate the tank.

!

!

9

MAINTENANCE

MAINTENANCE

The efficiency and life of your machine is increased by regularly scheduled preventive
maintenance. A well maintained machine gives better results and service. An investment of a few
minutes of daily maintenance will be worthwhile.

The best maintenance you can provide is to keep your machine clean. Components that are not
regularly cleaned and flushed will clog and become inoperative.

Intervals shown in the following schedules represent an average length of time between
necessary maintenance. Maintenance intervals should be shortened whenever your machine is
faced with abnormal working conditions, hard water, or multiple shift operations.

Cleaning Schedule

• Daily-Every 8 Hours

1. Depress the OFF/DRAIN switch to OFF and close and latch the door to drain the

tank.

2. Open the door and remove the lower spray arm by unscrewing the knurled fastener.

3. Remove the scrap screen carefully to keep soil or waste particles from falling into the
sump. Remove any material caught in pump intake.

4. Clean inside the tank with clean water. Backflush the scrap screen until it is clean. Do
not strike the screen against solid objects.

5. Clean the wash arm to remove any debris from spray openings. Do not strike the spray
arm against solid objects.

6. Reinstall the scrap screen and spray arm.

7. Leave the door open overnight to allow drying.

8. Report any unusual conditions to your supervisor.

•Meal Periods

1. Clean the scrap screen after every meal period and more frequently during heavy
usage. Do not allow the scrap screen to become clogged with soil or waste particles.

10

MAINTENANCE

Deliming

Your dishwasher should be delimed regularly as required. This will depend on the mineral
content of your water.

Inspect your machine interior for lime deposits. If deliming is required, a deliming agent should
be used for best results.

DANGER:

Deliming solution or other acids must not come in contact with household bleach (sodium
hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine. Mixing
will cause hazardous gases to form. Skin contact with deliming solutions can cause severe
irritation and possible chemical burns. Consult your chemical supplier for specific safety
precautions.

Deliming Procedure

Complete the following procedure to delime your machine:

1. Add the delime chemical to wash the tank (per chemical supplier specifications).

2. Close and latch the door.

3. The dishwasher will complete a regular cycle.

4. Check the deliming results and repeat if necessary per the chemical supplier’s
specifications.

5. Operate the dishwasher for at least four complete cycles to purge the machine of any
deliming chemicals.

6. Drain the dishwasher. Deliming is complete.

!

11

MAINTENANCE

Maintenance Schedule

• As Required

1. Check the temperature gauge reading.

2. Check the chemical supplies and refill as necessary.

• Weekly

1. Inspect all water lines for leaks and tighten them at joints if required.

2. Clean all detergent residue from the exterior of the machine.

3. Check the drain for leaks.

4. Remove and closely inspect the spray arm for blockage.

5. Check for damage to the scrap screen. Ineffective screening can cause wash system
failures, or poor washing results.

6. Clean the detergent and rinse aid supply tubes (if equipped). Complete the following
procedure:

a. Remove the detergent and rinse aid pick-up tube(s) from the container(s).

Place the tube(s) into a container of hot water.

b. Ensure ON/OFF switch is in the ON position depress and hold the DET prime

switch (located on the front panel) until clear water enters the tank through the
fill air gap (located on the right side of the tank).

c. If your machine is equipped with a rinse aid pump, follow the same procedure by

pressing the RINSE AID prime switch until clear water enters the tank through the fill
air gap.

d. When completed, remove the pickup tubes from the hot water and reinsert them into

the correct chemical containers. Repeat the priming procedures to ensure that chemicals
have filled the tubes for the next operating period.

e. Run a complete cycle to flush chemicals from the tank.

12

TROUBLESHOOTING

TROUBLESHOOTING

Before determining any specific cause of a breakdown or abnormal operation of your dishwasher,
check that:

1. Power supply is turned on. All switches are ON.

2. Wash arm is clean.

3. Scrap screen is properly positioned and clean.

4. Thermostat is at the correct setting.

5. Detergent and rinse additive dispensers (if equipped) are adequately filled.

6. All plumbing valves are open and drain hose is not kinked.

If a problem still exists, use the following table for troubleshooting.

CONDITION CAUSE SOLUTION

Machine will not start Door not closed and latched . . . . . . . . Make sure door is fully latched

Main switch off, or unit unplugged . . Check disconnect or plug into outlet

Low or no water Main water supply is turned off . . . . Turn on house water supply

Water level setting low. . . . . . . . . . . . Adjust water level

Chemical not feeding No chemical in container . . . . . . . . . . Replace or fill container

Feed tubes to/from chemical . . . . . . . Clear obstruction and flush

pump clogged with hot water

Screen on feed tube clogged. . . . . . . . Clean and replace

Tubing kinked or split . . . . . . . . . . . . Straighten or replace tubing

Water temperature Incoming water temperature. . . . . . . . Raise house supply temperature to

is low when in use at machine too low 60°C/140°F for all machines

Insufficient pumped spray Clogged spray arm . . . . . . . . . . . . . . . Clean

pressure Scrap screen full . . . . . . . . . . . . . . . . . Must be kept clean and in place

Low final rinse temperature Low incoming water. . . . . . . . . . . . . . Check the booster - be sure the

temperature thermostat is set to maintain 66°C/180°F

temperature
(Check all valves to be
sure they are clean and operating)

Poor washing results Detergent dispenser not . . . . . . . . . . . Contact service agent

operating properly

Insufficient detergents . . . . . . . . . . . . Check dosage

Check and fill

Contact detergent supplier

Detergent setting too low . . . . . . . . . Contact detergent supplier

Wash water temperature too low . . . . See above booster temperatures

Wash arm clogged . . . . . . . . . . . . . . . Clean wash arm

Improperly scraped dishes . . . . . . . . . Check scraping procedures

Ware being improperly. . . . . . . . . . . . Use proper racks - do not overload

placed in rack racks

Improperly cleaned . . . . . . . . . . . . . . Unclog wash arm to maintain

equipment proper pressure and flow conditions

No water in wash well Opening door prior . . . . . . . . . . . . . . . Close and latch door. Wait for green cycle

to cycle completion light to go out before opening door.

Water supply is turned off . . . . . . . . . Turn on supply.

No water in wash tank Door not latched . . . . . . . . . . . . . . . . . Latch door

after activating the Wait for wash tank to fill
ON/FILL switch

14

REPLACEMENT PARTS

Figure 1 — Track and Panel Assembly

12

12

11

10

12

7

6

9

4

5

3

2

00050

8

1

15

REPLACEMENT PARTS

TRACK/PANEL ASSEMBLY

Fig. 1 Part Description Qty
Item No. No.

1 0508751 Screw, 10-32 x 1-1/2" Lg. Truss Head ....................................... 2

2 0309634 Front Panel ................................................................................. 1

3 0501413 Screw, 10-32 x 3/8" Lg. Round Head......................................... 2

4 0501415 Screw, 10-32 x 5/8" Lg. Round Head......................................... 4

5 0308632 Track, RH ................................................................................... 1

6 0308631 Track, LH ................................................................................... 1

7 0708647 Cover, Vent ................................................................................. 2

8 0308736 Panel, LH Side ........................................................................... 1

9 0308734 Panel, Rear ................................................................................ 1

10 0308737 Panel, RH Side .......................................................................... 1

11 0308735 Panel, Top .................................................................................. 1

12 0501412 Screw, 10-32 x 3/8" Lg. Truss Head .......................................... 10

16

REPLACEMENT PARTS

Figure 2 — Door and Switch Assembly

00020

11

1

5

4

6

8

7

10

12

9

3

1

13

14

2

1

18

15

16

17

15

17

REPLACEMENT PARTS

DOOR AND SWITCH ASSEMBLY

Fig. 2 Part Description Qty
Item No. No.

1 0501412 Screw, 10-32 x 3/8" Truss Head................................................. 6

2 0308596 Plate, Door Latch........................................................................ 1

3 0308597 Handle, Door Latch .................................................................... 1

4 0508721 Retaining Ring, Plunger ............................................................. 1

5 0709462 Assembly, Door Catch (Includes items 4, 6).............................. 1

6 0509436 Plunger, Door Catch................................................................... 1

7 0508545 Gasket, Steam............................................................................. 2

8 104883 Screw, Round Head (6-32 x 3/8") .............................................. 2

9 0709431 Plate, Door Switch...................................................................... 1

10 111090 Switch, Door Magnetic Reed ..................................................... 1

11 0508544 Gasket, Upper Door.................................................................... 1

12 0508543 Gasket, Side Door ...................................................................... 2

13 0501539 Nut, Plain 1/4-20 ........................................................................ 2

14 0503715 Spring, Door Hinge .................................................................... 2

15 0501421 Bolt, 1/4-20 x 1-1/4" Hex Head ................................................. 4

16 0708564 Arm, Door Hinge........................................................................ 2

17 0501501 Washer, Lock 1/4" Split ............................................................. 2

18 0708527 Door............................................................................................ 1

- 0508555 Wiring, Harness, Door Switch ................................................... 1

- 0708526 Door Assy. (includes items 1-6, 18)

18

REPLACEMENT PARTS

Figure 3 — Tank/Drain Assembly

00037

1

TO DRAIN

12

5

6

7

11

8

9

11

10

2

3

4

THERMOMETER
(CALLED OUT IN
CONTROL BOX)

TO PUMP

19

REPLACEMENT PARTS

TANK/DRAIN ASSEMBLY

Fig. 3 Part Description Qty
Item No. No.

1 0508628 Scrap Screen............................................................................... 1

2 201029 Locknut, 1/2 NPT Nickel-Plated................................................ 1

3 0501836 O-Ring, Thermometer ................................................................ 2

4 0508872 Adapter, Thermometer ............................................................... 1

5 0501539 Nut, Plain 1/4-20 ........................................................................ 2

6 0501501 Washer, Lock, 1/4" Split............................................................. 2

7 0308611 Support, Drain Valve.................................................................. 1

8 0306618 Valve, Drain................................................................................ 1

9 0501418 Screw, 1/4-20 x 1/2" Lg. Round Head ....................................... 2

10 0507265 Hose, 1/2

" Clear Braided (3 ft.)

................................................... 1

11 0510082 Clamp, hose ................................................................................ 2

12 0509302 Hose 5/8

" ID x 1" OD Braided PVC

............................................ 1

20

REPLACEMENT PARTS

Figure 4 — Pump Assembly

00005

1

2

3

4

5

6

7

8

9

11

10

13

14

12

TANK
BOTTOM

21

REPLACEMENT PARTS

PUMP ASSEMBLY

Fig. 4 Part Description Qty
Item No. No.

1 0508542 Spindle, Lower Wash Arm ......................................................... 1

2 0501431 Screw, 8-32 x 1-1/8" Round Head.............................................. 4

3 0501425 Screw, 8-32 x 5/8" Round Head ................................................. 4

4 0502742 Housing, Top (No Hole)............................................................. 1

5 0502741 Diffuser....................................................................................... 1

6 0502704 Impeller ...................................................................................... 1

7 0502746 Adapter Plate, Suction................................................................ 1

8 0502745 Plate, Drain lnlet......................................................................... 1

9 0502703 O-ring ......................................................................................... 1

10 0502744 Propeller/Rotating Seal Assembly ............................................. 1

11 0502743 Mounting Plate/Seal Assembly (Includes Item 10).................... 1

12 0501881 Gasket, Pump ............................................................................. 1

13 0508665 Screw, 10-32 x 5/8" Hex Washer Head...................................... 8

14 0508570 Washer, Sealing Teflon............................................................... 8

- 0508973 Pump/Motor Assembly (Export Machines)* (50/60 Hz, 220V) 1

- 0710072 Pump/Motor Assembly (Includes items 1-11) (50/60 Hz, 175V) 1

- 107966 Nut, Grip 10-32, SST (Not Shown) (For mounting Item 1)....... 1

* Motor not available as a separate repair part

22

REPLACEMENT PARTS

TANK BOTTOM

PUMP

4

3

2

1

00038

Figure 5 — Wash System Assembly

23

REPLACEMENT PARTS

WASH SYSTEM ASSEMBLY

Fig. 5 Part Description Qty
Item No. No.

1 0501563 Screw, #8 x 3/8" (Sheet Metal) Truss Head ............................... 4

2 0501684 Nut, Spray Arm Lock ................................................................. 1

3 0705049 Wash Arm, Lower ...................................................................... 1

4 0508540 Bushing, Lower Wash Arm ........................................................ 1

24

REPLACEMENT PARTS

Figure 6 — Booster Assembly and Water Inlet Piping

(I-UH with Booster)

00040

21

22

21

THERMOSTAT

(CALLED OUT

IN CONTROL BOX)

9

20

19

18

5

3

6

4

17

2

1

TO FILL SYSTEM

7

16

12

13

8

9

14

15

12

11

10

23

25

REPLACEMENT PARTS

BOOSTER ASSEMBLY AND WATER INLET PIPING

Fig. 6 Part Description Qty.
Item No. No.

1 0509214 Hose, 1/2" I.D............................................................................. 3 ft.

2 0503679 Clamp, hose................................................................................ 2

3 0502653 Elbow, 3/8 MPT X1/2 Hose x 90°.............................................. 1

4 0508840 Bushing, reducing 3/4 NPT x 3/8 NPT Brass ............................ 1

5 108954 Nut, grip 6-32 w/nylon insert ..................................................... 2

6110562 Thermostat, high limit ................................................................ 1

7 0509607 Tank, booster (tank only) ........................................................... 1

8 0501419 Bolt (1/4-20 x 1/2" Hex Hd)....................................................... 2

9 0501501 Washer, lock 1/4 split ................................................................. 2

10 0509526 Hose, 1/2" x 7 ft. ........................................................................ 1

11 0502618 Coupler, 3/8 MPT x 1/2.............................................................. 1

12 0504952 Valve, solenoid (3/8 NPT).......................................................... 1

13 0502811 Repair kit, 3/8" valve.................................................................. 1

14 0505235 Coil, 115V 3/8" valve................................................................. 1

15 0504958 Flow washer, 3/8" valve............................................................. 1

16 0509606 Elbow, reducing 1/2 MPT x 3/8 MPT 90° ................................. 1

17 0508817 Plug, pipe 1/8"............................................................................ 1

18 109985 Oring, gasket .............................................................................. 1

19 111233 Heater element, 9KW (70° rise) 208/230V 1PH

(existing 70° rise) ....................................................................... 1

*19 0708753 Conversion Kit 40° to 70° Rise.................................................. AR

20 111235 Heater element, 6KW (40° rise) 208/230V 1PH........................ 1

21 0501539 Nut, plain 1/4-20 ........................................................................ 6

22 107908 Cover, heater element................................................................. 1

23 0503718 Foot, adjustable .......................................................................... 4

* When converting machine contact factory with serial number. Kit is supplied with new data

plate for machine. Factory will supply jumper settings for element at time of installation.

26

REPLACEMENT PARTS

Figure 7— Water Inlet Piping

(I-UH without Booster)

00049

WATER

14

2

CONNECTION

15

14

13

11

12

6

7

8

9

10

2

4

3

2

TO FILL

5

1

27

REPLACEMENT PARTS

WATER INLET PIPING

(I-UH WITHOUT BOOSTER)
Fig. 7 Part Description Qty
Item No. No.

1 0503718 Foot, adjustable .......................................................................... 4

2 0503679 Clamp, hose................................................................................ 3

3 0502665 Hose, 1/2" I.D. clear braided...................................................... 3 ft.

4 0509214 Hose, 1/2" I.D. white.................................................................. 3 ft.

5 0502653 Elbow, 3/8 MPT x 1/2" Hose x 90° Brass .................................. 1

6 0504952 Valve, solenoid (3/8NPT)........................................................... 1

7 0502811 Repair kit, 3/8" valve.................................................................. 1

8 0505235 Coil, 115V 3/8" valve................................................................. 1

9 0504958 Flow washer, 3/8" valve............................................................. 1

10 0501501 Washer, lock 1/4" split................................................................ 2

11 0501419 Bolt, 1/4-20 x1/2" Hex Hd ......................................................... 2

12 0300203 Clamp, valve support.................................................................. 1

13 0502618 Coupling, 3/8 MPT x 3/4" hose barb ......................................... 1

14 0505320 Washer, hose............................................................................... 2

15 0501833 Hose, coupled ............................................................................. 1

28

REPLACEMENT PARTS

Figure 8 — Fill System

1

8

2

4

3

Beginning with S/N 5733 & Above

2

3

4

5

00039

From Top of

Booster or

From Fill Valve

RH Side

of Tank

7

3

4

(See Corresponding Pump For Hose)

From

Sanitizer

Rinse-aid

Pumps

From Detergent Pump

6

4

29

REPLACEMENT PARTS

FILL SYSTEM

Fig. 8 Part Description Qty
Item No. No.

1 0502665 Hose, 1/2" I.D. Clear Braided .................................................... A/R

2 0501518 Tie Wrap, Hose........................................................................... 2

3 106090 Bracket, Tie Wrap....................................................................... 2

4 107966 Nut, Grip, 10-32 w/Nylon Insert ................................................ 8

5 0509048 Gasket, Inlet Chute..................................................................... 1

6 0508867 Inlet Chute .................................................................................. 1

7 0501519 Tie Wrap, Chemical Hose .......................................................... 3

8 0509214 Hose, Flll 1/2" I.D. (White)........................................................ 3 ft.

30

REPLACEMENT PARTS

Figure 9 — Detergent Pump Assembly (optional)

1

3

2

4

6

7

8

5

9

10

11

16

17

18

12

13

16

22

00022

14

15

TO FILL

ASSY

22

19

20

21

TO DETERGENT

SUPPLY

31

REPLACEMENT PARTS

DETERGENT PUMP ASSEMBLY (OPTIONAL)

Fig. 9 Part Description Qty
Item No. No.

1 0503757 Motor, Pump............................................................................... 1

2 0308637 Bracket, Detergent Pump ........................................................... 1

3 0308610 Bracket, Detergent/Rinse Aid Pumps......................................... 1

4 N/A Screw, M4 x 35mm Hex Head ................................................... 4

5 0501412 Screw, 10-32 x 3/8" Lg. Truss Head .......................................... 2

6 N/A Housing, Pump ........................................................................... 1

7 0501497 Washer, Lock #8 Split ................................................................ 2

8 0504822 Screw,8-32 x 1/2" Lg. Pan Head ................................................ 2

9 0501425 Screw, 8-32 x 5/8" Round Head ................................................. 2

10 N/A Screw, Set M6 x 8mm ................................................................ 1

11 N/A Rotor Assembly.......................................................................... 1

12 108194 Hose, Pump ................................................................................ 1

13 N/A Cover, Pump Housing ................................................................ 1

14 N/A Washer, Flat M4 ......................................................................... 4

15 N/A Nut, Wing M4............................................................................. 4

16 0501519 Tie Wrap, Hose........................................................................... 2

17 0502667 Hose, Detergent, 1/4" I.D. PVC (Clear)..................................... A/R

18 0502644 Elbow, 1/4" O.D. x 90° Barbed .................................................. 2

19 0503695 Label, Detergent ......................................................................... 1

20 0306363 Tube, Pick-Up ............................................................................ 1

21 0501869 Strainer, Pick-Up Tube ............................................................... 1

22 0501519 Tie Wrap, Hose........................................................................... 2

- 109829 Pump Head Assy. (includes items 4, 6, 10-15)

- 0708559 Pump/Motor Assy. (includes items 1, 2, 4, 6-16, 18)

32

REPLACEMENT PARTS

Figure 10 — Rinse Aid Pump Assembly (Optional)

00002

1

3

2

5

6

7

4

15

10

DETERGENT
PUMP (SEE FIG. 9)

TO FILL
SYSTEM

11

13

14

TO CHEMICAL SUPPLY

8

9

10

12

33

REPLACEMENT PARTS

RINSE AID PUMP ASSEMBLY (OPTIONAL)

Fig. 10 Part Description Qty
Item No. No.

1 0503756 Motor, Pump............................................................................... 1

2 0308610 Bracket, Detergent/Rinse Pump (Optional)................................ 1

3 0308697 Bracket, Rinse Aid Pump ........................................................... 1

4 0501412 Screw, 10-32 x 3/8" Lg. Truss Head .......................................... 2

5 0501497 Washer, Lock #8 Split ................................................................ 4

6 0504822 Screw, 8-32 x 1/2" Lg. Pan Head ............................................... 4

7 0707142 Rotor Assy.................................................................................. 1

8 0706635 Element Tube Assy (45cc/min).................................................. 1

9 0506589 Screw, 6-32 x 7/8" Lg. Pan Head ............................................... 2

10 0502666 Hose, 1/8" I.D. PVC (Clear)....................................................... A/R

11 0505483 Label, Rinse-Aid (Optional)....................................................... 1

12 0306363 Tube, Pick-Up ............................................................................ 1

13 0501869 Strainer, Pick-up Tube................................................................ 1

14 0501519 Tie Wrap, Hose........................................................................... 2

- 0708561 Detergent Pump Assy. (Optional) .............................................. 1

(lncludes Detergent Pump and Items 2, 5-9)

- 0708754 Rinse-Aid Pump Assy. (Optional)
(Includes Items 1,3, 5-10, 12-15)

34

REPLACEMENT PARTS

L1

L2

T2

T1

SL

UP

1

2

5

4

3

6

7

8

22

23

15 16 18

19

20

21

17

9

10

11

12

13

14

21

00033

Figure 11 — Control Panel Assembly

35

REPLACEMENT PARTS

CONTROL PANEL ASSEMBLY

Fig. 11 Part Description Qty.
Item No. No.

*1 0708538 Timer assembly (Includes items 2-5) ......................................... 1

2 0504956 Motor, timer................................................................................ 1

3 0501379 Switch, timer .............................................................................. A/R

4 0308644 Bracket, timer support ................................................................ 1

5 0503701 Bearing, timer............................................................................. 1

6 111703 Contactor, 2 pole 50A, 240V (Booster only) ............................. 1

7 0501358 Relay, motor start (115V only)................................................... 1

7 0509642 Relay motor start (220V, 60 Hz) (Export machine) ................... 1

8 0509428 Relay, door safety switch (15A, 120VAC coil).......................... 1

9 0501403 Screw (10-32 x 3/4 Rd Hd) ........................................................ 1

10 0501493 Washer, lock (#10 ext. tooth) ..................................................... 1

11 0501472 Washer, flat (#10 Brass) ............................................................. 2

12 0501533 Nut, plain (10-32 Brass) ............................................................. 2

13 0503749 Board, terminal........................................................................... 1

14 0310330 Bracket, thermostat (Booster only) ............................................ 1

15 109069 Thermostat, booster (Booster only)............................................ 1

16 113622 Thermometer, 4 ft. Gas Filled (Replaces 108391) ..................... 1

17 0508551 Lamp, green................................................................................ 1

18 0501361 Switch, rocker (DPDT) .............................................................. 1

19 0501369 Switch, rocker (Spring return).................................................... 1

20 0509568 Label, switch, overlay ................................................................ 1

20 0509626 French label, switch overlay....................................................... 1

21 0501412 Screw (10-32 x 3/8” Truss Hd) .................................................. 4

22 0309579 Panel (sheet metal only) ............................................................ 1

23 106963 Block, terminal (3pole) .............................................................. 1

— 109064 Transformer (Not Shown) (For 50/60Hz Export Machine) ....... 1

— 107369 Contactor, 25 FLA 2p 120V Coil (Not Shown)

(50/60 Hz Export Machine) (Motor).......................................... 1

— 106402 Block, Fuse 600V 30A 2p (Not Shown) (Control for transformer) 1
— 107289 Fuse 25 Amp 250 VAC (Not Shown)

(Control Fuses for transformer).................................................. 1

38

ELECTRICAL SCHEMATICS

Figure 12 — Electrical Diagram, I-UH (50 Hz)

5

TO CUSTOMER DISCONNECT SWITCH

230V

GND

2

2

1

1

1

MSW

5

NO

NC

NO

2

4

35

33

NC

NO

4

NO

35

Cam 8

NC

NC

1CR

PSDR

4

34

NO

1

2

115 VAC

3

99

NC

NC

41

NO

40

COIL

3

5

12

CT

NC NC

NO NO

28

BOOSTER TANK

WTS

6

NO

Cam 1

7

NC

16

17

25

15

FUSE

2

XFMR 115 VAC

3

33

CTC

31

29

BHTR

30

HLTS

31

33

8

40 9

NO

8

Cam 2

NC

25

41

16 16

40

17

88

LS

SRC

25

NO

Cam 5

26

NC

NO

Cam 4

8

NC

NO

Cam 7

NC

17

NO

Cam 6

8

NC

12

M

19

F

(If used)

20

DP

20

D

(If used)

21

DM

(If used)

22

RM

NO

Cam 3

NC

V

V

CLT

Wash/
Rinse

13

14

DRAIN

15

41

3

3

3

GND

3

33

3

1

2

3

4

5

5

TM

BLU

RED

BLK

WHT

GRN

DSS

Start CW

Start CCW

Main

TP

GND

50

00048

3

3

3

1CR

BHTR BOOSTER HEATER
BLK BLACK
BLU BLUE

CAM 1 HOMING
CAM 2 PUMP MOTOR

CAM 3 PUMP MOTOR REVERSING
CAM 4 DRAIN
CAM 5 FILL
CAM 6 RINSE

CAM 7 DETERGENT
CAM 8 CYCLE
CLT CYCLE ON LIGHT

CT CONTACTOR
CTC CONTACTOR COIL
DM DETERGENT MOTOR
DP DRAIN PUMP (IF USED)

DS DOOR SWITCH
DV DRAIN VALVE

FV FILL VALVE
GND GROUND
GRN GREEN
HTLS HIGH LIMIT THERMOSTAT

MSW MAIN SWITCH On/Fill- Off/Drain

PSDR Prime Switch, Detergent/Rinse

0509643B

CUSTOMER TO SUPPLY RATED VOLTAGE/
PHASE/HZ, AS SPECIFIED PER ORDER, TO
DISCONNECT SWITCH. ALL POWER SUPPLIED
TO EACH CONNECTION POINT MUST
COMPLY WITH ALL LOCAL ELECTRICAL CODES.

1CR RELAY
DDS DOOR SAFETY SWITCH
RM RINSE MOTOR (IF USED)
SRC Current Operated Start Relay

SS SERVICE SWITCH

TM TIMER MOTOR
TP THERMAL PROTECTOR
WHT WHITE

WHTR WATER HEATER

WTS WATER THERMOSTAT

39

TIMING CHART

Figure 13 — Timer Chart and Diagram, I-UH

TIMING CHART I-UH

0

TIME IN SECSCAM

HOMING

1

CAM

WASH PUMP

2

FORWARD=WASH

WASH PUMP

2

REVERSE=DRAIN
WASH PUMP

REVERSING CAM

3

DRAIN VALVE

4

DRAIN PUMP

FILL VALVE

5

RINSE

6

PUMP

DETERGENT

7

PUMP

AUTO-FILL

8

DRAIN

OPTIONAL

10 20 30 40 50 60 70 80 90 100 110 120 130 140

00046

150

NCN

O

COM.

TIMER
SWITCH
DETAIL

87 6 54321

LOCKING SCREW

TIMER ASSEMBLY I-UH

SYNCHRON

TIMER MOTOR