Champion UH-200 Technical Manual

For machines beginning with Serial no. U-1352

Champion

Technical Manual

Undercounter

Dishwasher

Model

UH-200B High Temperature with Built-in Booster

Fresh Water Final Rinse

UH-200 High Temperature

Fresh Water Final Rinse

UH-100B High Temperature with Built-in Booster

Pumped Fresh Water Final Rinse

UH-100

UL-100

High Temperature

Pumped Fresh Water Final Rinse

Low Temperature

Chemical Sanitizing Rinse

Model UH-200B Shown

Machine Serial No.

June, 2001

P. O. Box 4149

Winston-Salem, North Carolina 27115-4149

336/661-1556 Fax: 336/661-1660

Champion Manual

P/N

112653

R

EV

. C

2674 N. Service Road

Jordan Station, Ontario, Canada L0R 1S0

905/562-4195 Fax: 905/562-4618

Champion Industries, Inc.

Complete the information below for quick reference.

Serial Number Model Number

Voltage and Phase

Champion Parts Supplier

Champion Service Agency

Phone

Phone

Champion (USA)

National Service Department

Phone: 1(336) 661-1556

1(800) 858-4477

Fax: 1(336) 661-1660

Champion (Canada)

National Service Department

Phone: 1(905) 562-4195

Fax:

1(800) 263-5798

1(905) 562-4618

Note: When calling to order parts, be sure to have the model number, serial number, voltage and phase of your machine.

Champion

Machine Data Plate with located on the front of the lower panel.

COPYRIGHT © 2001 by Champion Industries, Inc. All Rights Reserved.

REVISION RECORD

REVISION RECORD

Revision

Date

2/25/99

Revised

Pages

All

Serial Number

Effectivity

U-1352

10/25/99 ALL

10/25/99

5/1/00

5/1/01

7, 9, 10,

92, 93

75, 99

133

142, 143

ALL

U-1991

ALL

Comments

First issue of manual and replacement parts lists

Increased size of supply line, line strainer, and PRV from 1/2" to 3/4" I.D.

Corrected Thermistor

Resistance Chart

Changed Models UH-200 &

UH-200B fill hose, valve to 3/4" revised fill piping & bracket

Changed P/N 112621 to

900827 prior to S/N U1938, and

113292 after S/N U1938. Changed

P/N’s 112622 & 112623 to

900828 prior to S/N U1938 and

113293 after S/N U1938.

i

REVISION RECORD ii

SAFETY SUMMARY

SAFETY SUMMARY

Safety Symbols

• The following symbols appear throughout this manual alerting you to potential hazards. Statements associated with each symbol are printed in italics.

WARNING:

Warning statements indicate any condition or practice that could result in personal injury or possible loss of life.

!

CAUTION:

Caution statements indicate any condition or practice which, if not strictly observed or remedied, could result in damage to or destruction of the dishwasher.

NOTE:

Note statements indicate any condition or practice which, if observed, will help in the safe completion of a task.

General Safety Rules

• The following general safety rules must be observed in addition to the specific cautions and warnings presented in this manual.

• Your Champion dishwasher uses hot water to clean and sanitize a variety of wares.

(Model UL-100 uses chemicals to sanitize wares.)

Machine surfaces and wares become hot during and immediately following normal operations.

Operators should use caution when loading and unloading wares from the machine.

• Operators must NOT bypass a safety interlock or control to operate the dishwasher.

• The service and maintenance instructions contained in this manual are intended for qualified

service personnel. These instructions assume that you are trained in basic electricity and mechanical theory. If you are not a trained technician, then do not attempt to adjust or repair the dishwasher as serious personal injury or damage to the dishwasher may result.

iii

LIMITED WARRANTY

LIMITED WARRANTY

Champion Industries Inc. (herein referred to as Champion), P.O. Box 4149, Winston-Salem, North Carolina 27115, and P.O. Box 301, 2674 N. Service Road, Jordan Station, Canada, L0R 1S0, warrants machines, and parts, as set out below.

Warranty of Machines: Champion warrants all new machines of its manufacture bearing the name

"Champion" and installed within the United States and Canada to be free from defects in material and workmanship for a period of one (1) year after the date of installation or fifteen (15) months after the date of shipment by

Champion, whichever occurs first. [See below for special provisions relating to glasswashers.] The warranty registration card must be returned to Champion within ten (10) days after installation. If warranty card is not returned to Champion within such period, the warranty will expire after one year from the date of shipment.

Champion will not assume any responsibility for extra costs for installation in any area where there are jurisdictional problems with local trades or unions.

If a defect in workmanship or material is found to exist within the warranty period, Champion, at its election, will either repair or replace the defective machine or accept return of the machine for full credit; provided, however, as to glasswashers, Champion's obligation with respect to labor associated with any repairs shall end

(a) 120 days after shipment, or (b) 90 days after installation, whichever occurs first. In the event that Champion elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular working hours by a Champion authorized service technician. Defective parts become the property of Champion.

Use of replacement parts not authorized by Champion will relieve Champion of all further liability in connection with its warranty. In no event will Champion's warranty obligation exceed Champion's charge for the machine.

The following are not covered by Champion's warranty: a. Lighting of gas pilots or burners.

b. Cleaning of gas lines.

c. Replacement of fuses or resetting of overload breakers.

d. Adjustment of thermostats.

e. Adjustment of clutches.

f.

Opening or closing of utility supply valves or switching of electrical supply current.

g. Cleaning of valves, strainers, screens, nozzles, or spray pipes.

h. Performance of regular maintenance and cleaning as outlined in operator’s guide.

i.

Damages resulting from water conditions, accidents, alterations, improper use, abuse, tampering, improper installation, or failure to follow maintenance and operation procedures.

j.

Wear on Pulper cutter blocks, pulse vanes, and auger brush.

Examples of the defects not covered by warranty include, but are not limited to: (1) Damage to the exterior or interior finish as a result of the above, (2) Use with utility service other than that designated on the rating plate,

(3) Improper connection to utility service, (4) Inadequate or excessive water pressure, (5) Corrosion from chemicals dispensed in excess of recommended concentrations, (6) Failure of electrical components due to connection of chemical dispensing equipment installed by others, (7) Leaks or damage resulting from such leaks caused by the installer, including those at machine table connections or by connection of chemical dispensing equipment installed by others, (8) Failure to comply with local building codes, (9) Damage caused by labor dispute.

Warranty of Parts: Champion warrants all new machine parts produced or authorized by Champion to be free from defects in material and workmanship for a period of 90 days from date of invoice. If any defect in material and workmanship is found to exist within the warranty period Champion will replace the defective part without charge.

DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. CHAMPION'S WARRANTY

IS ONLY TO THE EXTENT REFLECTED ABOVE. CHAMPION MAKES NO OTHER WARRANTIES,

EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF

MERCHANTABILITY, OR FITNESS OF PURPOSE. CHAMPION SHALL NOT BE LIABLE FOR

INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE REMEDIES SET OUT ABOVE ARE

THE EXCLUSIVE REMEDIES FOR ANY DEFECTS FOUND TO EXIST IN CHAMPION DISHWASHING

MACHINES AND CHAMPION PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED,

INCLUDING ANY LIABILITY FOR INCIDENTALS OR CONSEQUENTIAL DAMAGES.

Champion does not authorize any other person, including persons who deal in Champion dishwashing machines, to change this warranty or create any other obligation in connection with Champion Dishwashing Machines.

iv

TABLE OF CONTENTS

TABLE OF CONTENTS

PAGE

Revision Record ...........................................................................................................

Safety Summary ...........................................................................................................

iii i

Limited Warranty .........................................................................................................

iv

PART 1: GENERAL SPECIFICATIONS ........................................................

1.1

About this Manual ................................................................................................

1.2

Model Numbers ...................................................................................................

1.3

Standard Equipment and Options ........................................................................

1.4

Dimensions, Capacities, and Rough-in ................................................................

PART 2: INSTALLATION ..............................................................................

2.1

Introduction ..........................................................................................................

2.2

Unpack the Dishwasher .......................................................................................

2.3

Permanent Placement ...........................................................................................

2.4

Water Connections ..............................................................................................

2.4.1 Model UH-200B, UH-200 .........................................................................

2.4.2 Model UH-100B, UH-100, UL-100 ...........................................................

10

8

9

7

8

7

7

2.5

Drain Connections (All models) ..........................................................................

11

2.6

Installation and Service Switch (Model UH-200B, UH-100B Only) ..................

12

2.7

Electrical Connections (Single Phase) .................................................................

13

2.7.1 Model UH-200B, UH-100B .......................................................................

13

2.7.2 Model UH-200, UH-100, UL-100 .............................................................

14

2.8

Electrical Connections (Three Phase) ..................................................................

15

2.8.1 Model UH-200B, UH-100B .......................................................................

15

2.9

Chemical Connections .........................................................................................

16

2.9.1 General (All Models) .................................................................................

16

2.9.2 Models UH-200B, UH-200 (Chemical Adjust and Prime) ........................

19

2.9.3 Models UH-100B, UH-100 (Chemical Adjust and Prime) ........................

20

2.9.4 Model UL-100 (Chemical Adjust and Prime) ............................................

21

2.10

Installing Optional Chemical Pumps ...................................................................

22

2.10.1 Model UH-200B, UH-200 .......................................................................

22

2.10.2 Model UH-100B, UH-100 .......................................................................

25

2.11

Initial Start-up (All Models) ................................................................................

26

2.11.1 Model UH-200B, UH-200 .......................................................................

27

2.11.2 Model UH-100B, UH-100, UL-100 .........................................................

28

2

3

4

1

1 v

TABLE OF CONTENTS

PART 3: DAILY OPERATION ........................................................................

29

3.1

Introduction ..........................................................................................................

29

3.2

Preparing your Dishwasher (All Models) ............................................................

29

3.3

Loading your Dishwasher (All Models) ..............................................................

30

3.4

Description of Operator Controls and Displays (All Models) .............................

31

3.5

Basic Operation ....................................................................................................

34

3.5.1 Model UH-200B, UH-200 .........................................................................

34

3.5.2 Model UH-100B, UH-100, UL-100 ...........................................................

36

PART 4: CLEANING and MAINTENANCE ..................................................

39

4.1

Introduction ..........................................................................................................

39

4.2

Daily Cleaning Schedules (All Models) ..............................................................

39

4.3

Deliming Schedules (All Models) .......................................................................

40

4.3.1 Deliming Procedure (All Models) .............................................................

40

4.4

Preventive Maintenance Schedules (All Models) ................................................

41

4.5

Lubrication (All Models) .....................................................................................

41

PART 5: OPERATOR TROUBLESHOOTING ...............................................

43

5.1

Introduction ..........................................................................................................

43

5.2

Troubleshooting Basics ........................................................................................

43

5.3

Using the Touchpad/Display to Evaluate Problems .............................................

44

5.4

Reading Error Codes ............................................................................................

45

5.5

Troubleshooting Guide ........................................................................................

46

PART 6: SERVICE TROUBLESHOOTING ...................................................

51

6.1

Introduction ..........................................................................................................

51

6.2

Operation Sequence and Timing Charts ..............................................................

52

6.2.1 Model UH-200B, UH-200 .........................................................................

52

6.2.2 Model UH-100B, UH-100 .........................................................................

54

6.2.3 Model UL-100 ...........................................................................................

56

6.3

Error Codes ..........................................................................................................

58

6.4

Troubleshooting Guide ........................................................................................

60 vi

TABLE OF CONTENTS

PART 7: SOLID STATE CIRCUIT BOARDS .................................................

7.1

61

Introduction .....................................................................................................

61

7.2

7.3

7.4

7.5

Control Cabinet Layout and Board Function ..................................................

61

Replacement Circuit Board Set-up ..................................................................

62

7.3.1 Timer Control Board Program Jumper Settings ....................................

62

7.3.2 Timer Control Board LED Status Lights ...............................................

63

7.3.3 Temperature/Pressure Control Board Program Jumper Settings ...........

64

7.3.4 Temperature/Pressure Control Board LED Status Lights .....................

65

7.3.5 Time Select (Fill/Chemical Dispenser) Board .......................................

66

Circuit Board Connector Diagrams and Test Points ........................................

70

7.4.1 Timer Control and Time Select (Fill/Chemical Dispenser) Board .......

72

7.4.2 Temperature/Pressure Display Board ...................................................

74

7.4.3 Touchpad/Display .................................................................................

76

Circuit Board Removal and Replacement .......................................................

78

7.5.1 Timer Control Board Removal ..............................................................

78

7.5.2 Temperature/Pressure Display Board Removal .....................................

80

7.5.3 Touchpad/Display Removal and Replacement ......................................

82

7.5.4 Time Select (Fill/Chemical Dispenser) Board Removal .......................

85

PART 8: COMPONENT REPAIR AND REPLACEMENT .............................

87

8.1

Introduction ..........................................................................................................

87

8.1.1

Special Tools and Materials ................................................................

87

8.1.2

Electrical Component Locator Diagram .............................................

88

8.1.3

Troubleshooting the 10-point Terminal Board ...................................

90

8.2

Components .........................................................................................................

92

8.2.1

Pressure Reducing Valve, (PRV), Adjustment ....................................

92

Model UH-200B, UH-200

8.2.2

Water Line Strainer .............................................................................

93


Model UH-100B, UH-100, UL-100

8.2.3

Fill/Rinse Water Solenoid Valve .........................................................

93


Model UH-100B, UH-100, UL-100

8.2.4

Water Level Probe ..............................................................................

95


8.2.5

Vacuum Breaker .................................................................................

96


8.2.6

Pressure Transducer ............................................................................

97


8.2.7

Thermistors (All Models) ...................................................................

99

8.2.8

Wash Tank Heater and High Limit Thermostat ..................................

100

(All models except UL-100)

8.2.9

Booster Tank Heater and High Limit Thermostat ..............................

101

Model UH-200B, UH-100B vii

TABLE OF CONTENTS

PART 8: ..........................................................................................................

COMPONENT REPAIR AND REPLACEMENT (CONT.)

8.2

Components (Cont.)

8.2.10

Wash Pump/Motor (All Models) ........................................................................

102

8.2.11

Drain Pump/Motor, Drain Valve (All Models) ..................................................

104

8.2.12

Wash Arm Bearings (All Models) ......................................................................

105

8.2.13

Rinse Arm Bearings ............................................................................................

106


8.2.14

Door Shock and Hinge Assembly (All Models) .................................................

107

8.2.15

Door Safety Switch and Magnet (All Models) ...................................................

108

8.2.16

Circuit Breaker (All Models) ..............................................................................

109

PART 9: REPLACEMENT PARTS ..........................................................

111

PART 10: ELECTRICAL SCHEMATICS ...................................................

A701543

A701542

A701545

A701544

A701546

A701628

A701627

UH-200B

UH-200

UH-100B

UH-100

UL-100

UH-200B

UH-100B

Single Phase

Single Phase

Single Phase

Single Phase

Single Phase

Three Phase

Three Phase

155 viii

TABLE OF CONTENTS

LIST OF FIGURES

Figure 2.4.1 – Water Connections ( UH-200B, UH-200) ..............................................

Figure 2.4.2 – Water Connections (UH-100B, UH-100, UL-100) .................................

Figure 2.5.3 – Recommended Direct Drain Connections for All Models ......................

11

Figure 2.6.1 – Installation and Service Switch (UH-200B, UH-100B Only) ................

12

9

9

Figure 2.9.1 – Control Cabinet Retaining Screws ..........................................................

17

Figure 2.9.2 – Fill/Chemical Dispenser Circuit Board ...................................................

18

Figure 2.9.3 – Chemical Bottle Placement .....................................................................

18

Figure 2.9.4 – UH-200B, UH-200 Touchpad/Display ...................................................

19

Figure 2.9.5 – Rinse Aid Injection Point (UH-200B, UH-200) .....................................

19

Figure 2.9.6 – UH-100B, UH-100 Touchpad/Display ...................................................

20

Figure 2.9.7 – Fill Chute (UH-100B, UH-100, UL-100) ...............................................

20

Figure 2.9.8 – UL-100 Touchpad/Display ......................................................................

21

Figure 2.9.9 – Fill Chute Discharge (UH-100B, UH-100, UL-100) ..............................

21

Figure 2.10.1 – UH-200B, UH-200 Chemical Pumps ....................................................

22

Figure 2.10.2 – Chemical Pump Connection Terminal Block .........................................

22

Figure 2.10.3 – UH-100B, UH-100 Chemical Pumps .....................................................

25

Figure 3.4.1 – Door Safety Magnet Location .................................................................

31

Figure 3.4.2 – Circuit Breaker Location ........................................................................

31

Figure 5.3.1 – Self-Diagnostics Display ........................................................................

44

Figure 5.3.2 – LO Temperature Displayed .....................................................................

44

Figure 6.2.1 – Timing Chart (UH-200B, UH-200) ........................................................

53

Figure 6.2.2 – Timing Chart (UH-100B, UH-100) ........................................................

55

Figure 6.2.3 – Timing Chart (UL-100) ...........................................................................

57

Figure 7.2.1 – Circuit Board Layout (All Models) ........................................................

61

Figure 7.3.1 – Timer Control Board Jumpers and ..........................................................

62

LED Status Lights

Figure 7.3.2 – Temperature/Pressure Display Board Jumpers .......................................

64 and LED Status Lights

Figure 7.3.3 – Time Select (Fill/Chemical Dispenser) ...................................................

66

Board Potentiometers

Figure 7.3.4 – Rinse Aid and Sanitizer Pump Adjustment .............................................

69

Figure 7.4.1 – Timer Control Board and Time Select Board .........................................

72

Connector Diagrams

Figure 7.4.2 – Temperature/Display Board ....................................................................

74

Connector Diagrams

Figure 7.4.3 – Touchpad/Display Connector Diagram ...................................................

76

Figure 8.1.1 – Electrical Component Locator Diagram .................................................

88

Figure 8.1.2 – 10-Point Terminal Board .........................................................................

90 ix

TABLE OF CONTENTS

LIST OF FIGURES (Cont.)

Figure 9.1 – Upper Hood Assembly and Control Cabinet (All Models) .........................

112

Figure 9.2 – Tank, Base, Guide Rails, and Panels (UH-200B, UH-200) ........................

114

Figure 9.3 – Tank, Base, Guide Rails, and Panels (UH-100B, UH-100, UL-100) ..........

116

Figure 9.4 – Door and Door Safety Switch Assembly (All Models) ...............................

118

Figure 9.5 – Final Rinse Manifold Assembly (UH-200B, UH-200) ...............................

120

Figure 9.6 – Chemical Injection Points, Water Level Probe Assy. (UH-200B, UH-200 .

122 and Fill Chute Assemby (UH-100B, UH-100, UL-100)

Figure 9.7 – Sump and Spray Piping Assembly (UH-200B, UH-200) ............................

124

Figure 9.8 – Sump and Spray Piping Assembly (UH-100B, UH-100, UL-100) .............

126

Figure 9.9 – Spray Arm Assembly (UH-200B, UH-200) ................................................

128

Figure 9.10 – Spray Arm Assembly (UH-100B, UH-100, UL-100) .................................

130

Figure 9.11 – Fill/Rinse Valve Assembly (UH-200B, UH-200) ........................................

132

Figure 9.12 – Fill/Rinse Valve Assembly (UH-100B, UH-100, UL-100) .........................

134

Figure 9.13 – Wash Pump Piping, Drain Pump, Drain Valve and Drain Piping ...............

136

(All Models)

Figure 9.14 – Wash Pump/Motor Assembly (All Models) ................................................

138

Figure 9.15 – Booster Assembly (UH-200B, UH-100B) ..................................................

140

Figure 9.16 – Solid State Controls (All Models) ...............................................................

142

Figure 9.17 – Base Mounted Electrical Controls (All Models) .........................................

144

Figure 9.18 – (Optional) Detergent Pump for High Temp Machines ................................

146

(UH-200B, UH-200, UH-100B, UH-100)

Figure 9.19 – (Optional) Rinse Aid Pump for High Temp Machines ................................

148

(UH-200B, UH-200, UH-100B, UH-100)

Figure 9.20 – (Standard) Chemical Dispensing Pumps for Low Temp Machines ............

150

(UL-100)

Figure 9.21 – Dishracks, Line Strainer, PRV (All Models) ...............................................

152 x

Part 1: GENERAL SPECIFICATIONS

PART 1: GENERAL SPECIFICATIONS

1.1 About this Manual

All information, illustrations and specifications contained in this manual are based upon the latest product information available at the time of publication. Champion constantly improves its products and reserves the right to make changes at any time or to change specifications or design without notice and without incurring any obligation.

Manual Organization

This manual is divided into eleven parts:

♦

Part 1, General Specifications, introduces this manual and the dishwasher models in general.

♦

Part 2, Installation, explains the installation of the dishwasher and describes the connection of utilities, chemical dispensing pumps, and initial start-up.

♦

Part 3, Daily Operation, explains operator controls and basic operation.

♦

Part 4, Cleaning and Maintenance, explains cleaning, deliming, preventive maintenance, and lubrication.

♦

Part 5, explains basic troubleshooting for the operator.

♦

Part 6, explains basic troubleshooting for the service technician.

♦

Parts 7-8, provide detailed repair procedures for the trained service technician.

♦

Part 9, contains parts diagrams and parts lists.

♦

Part 10, contains electrical schematics.

NOTE:

Unless noted otherwise, dimensions, capacities, temperatures, etc., given in this

manual are U.S. Customary Measures and the Metric Equivalents of the U.S. customary measures.

1


1.2 Model Numbers

UH-200B

The UH-200B is a high temperature (180

°F/82°C) sanitizing machine with a built-in booster.

(40

°F/22°C) rise booster is standard requiring a minimum incoming water supply temperature of 140

°F/60°C. A (70°F/39°C) rise booster is available which requires a minimum incoming water supply temperature of 110

°F/43°C. The UH-200B is a fresh water rinse machine. Final rinse water enters the final rinse spray system under line pressure. A portion of the final rinse water is retained for the next wash cycle.

UH-200

The UH-200 is a high temperature (180

°F/82°C) sanitizing machine without a built-in booster. It requires a minimum incoming water supply temperature of 180

°F/82°C. The

UH-200 is a fresh water rinse machine. Final rinse water enters the final rinse spray system under line pressure. A portion of the final rinse water is retained for the next wash cycle.

UH-100B

The UH-100B is a high temperature (180

°F/82°C) sanitizing machine with a built-in booster.

(40

°F/22°C) rise booster is standard requiring a minimum incoming water supply temperature of 140

°F/60°C. A (70°F/39°C) rise booster is available which requires a minimum incoming water supply temperature of 110

°F/43°C. The UH-100B is a fresh water pumped final rinse machine. Final rinse water enters the wash tank and is recirculated by the wash pump. The final rinse water is retained for the next wash cycle.

UH-100

The UH-100 is a high temperature (180

°F/82°C) sanitizing machine without a built-in booster. It requires a minimum incoming water supply temperature of 180

°F/82°C. The

UH-100 is a fresh water pumped final rinse machine. Final rinse water enters the wash tank and is recirculated by the wash pump. The final rinse water is retained for the next wash cycle.

UL-100

The UL-100 is a low temperature (140

°F/60°C) chemical sanitizing machine for use with a sodium hypochlorite (chlorine) based sanitizer at a minimum concentration of 50 PPM (for

USA/Consult the local authority for Canada) in the final rinse. It requires a minimum incoming water supply temperature of 140

°F/60°C. The UL-100 is a fresh water pumped final rinse machine. Final rinse water enters the wash tank and is recirculated by the wash pump. The final rinse water is retained for the next wash cycle.

2


1.3 Standard Equipment

All Models

♦

304 stainless steel construction

♦

Interchangeable upper and lower spray arms

♦

3/4 Hp pump/motor assembly

♦

Top mounted slide-out control cabinet

♦

Solid state electronic controls

♦

Pumped drain

♦

Flexible fill and drain hoses

♦

Door safety switch

♦

Easily removable scrap screen

♦

Dishracks (peg rack and flat bottom rack)

UH-200B

♦

40

°F/22°C rise booster

♦

Tank heater

♦

Low water tank heat protection

♦

Top and side panels

UH-200

♦

Tank heater

♦


♦

Top and side panels

UH-100B

♦

40


♦

Tank heater

♦


UH-100

♦

Tank heater

♦


UL-100

♦

Three built-in chemical dispensing pumps for detergent, rinse aid, and sanitizer

1.3 Options

UH-200B

♦

70


♦

Detergent pump kit (P/N 900799)

♦

Rinse aid pump kit (P/N 900803)

♦

Pressure reducing valve 3/4" (P/N 107550)

UH-100B

♦

70


♦


♦


♦

Full side panel kit (P/N 900804)

All Models

♦

6" Legs (set of 4) (P/N 324087)

UH-200

♦


♦


♦

Pressure reducing valve 3/4" (P/N 107550)

UH-100

♦


♦


3


1.4 Dimensions, Capacities, and Rough-in

Dimensions (All Models)

Height 33-3/4" [858mm]

Width 23-7/8" [607mm]

Length 23" [584mm]

Volume crated: 15 cu. ft. [.4 cu.m]

Approx. Shipping weight crated: 215 lbs [98 Kg]

Wash Tank Capacities

UH-200B, UH-200

≅ 3.6 US gal. (14 liters)

UH-100B, UH-100

≅ 1.8 US gal. (7 liters)

UL-100

≅ 2.3 US gal. (8.7 liters)

Water Usage (per rack)

UH-200B, UH-200 1.1 US gal. (4.2 liters)

UH-100B, UH-100

UL-100

1.8 US gal. (6.8 liters)

2.3 US gal. (8.7 liters)

Total Cycle Time

UH-200B, UH-200

UH-100B, UH-100

UL-100

Racks per hour (NSF rated)

UH-200B, UH-200 30 racks/hr.

UH-100B, UH-100

UL-100

24 racks/hr.

19 racks/hr.

2

23

7

/

8

[607]

3

90 seconds

120 seconds

155 seconds

"

1 2" [51]

23" [584]

Flexible

Conduit

Main Power

Connection

Terminal Block

Electrical Power Routing

PLAN VIEW

Model UH-200B

Model UH-200

Model UH-100B

Model UH-100

Model UL-100

4


1.4 Dimensions and Capacities, and Rough-in

3" [76]

Wall

Clearance

23"

[584]

14

3

/

4 " [375]

Clearance

33

3

/

4"

[858]

14

1

/

4 " [362]

Model UH-200B

Model UH-200

2 3

1

1

5 /

8 "

[42]

SIDE VIEW

1 Electric

2 Water

3 Drain

WARNING:

Refer to Part 2: Installation, Sections 2.1 through

2.9, before connecting the dishwasher to utilities.

3" [76]

Wall

Clearance

23"

[584]

2 3

1

1

5 /

8 "

[42]

SIDE VIEW

15

1

/

2 " [394]

Clearance

33

3

/

4"

[858]

14

1

/

4 " [362]

Model UH-100B

Model UH-100

Model UL-100

5

6

Part 2: INSTALLATION

This Page

Intentionally

Left

Blank


PART 2: INSTALLATION

2.1 Introduction

In This Part—

• Unpacking the dishwasher

• Permanent Placement

• Making Utility Connections

• Installing Optional Components

2.2 Unpack the Dishwasher

Your dishwasher was completely assembled, inspected, and thoroughly tested at our factory before shipment to your installation site.

• The dishwasher is shipped on a single pallet.

• Optional components may have been shipped separately.

• Check your packing list thoroughly.

NOTE:

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

BE SURE TO COMPLETE AND RETURN THE

WARRANTY CARD

INCLUDED WITH YOUR MACHINE.

NOTE:

The installation of your dishwasher must meet all applicable health and safety codes and conform to good trade practice.

Perform the following steps to unpack the dishwasher:

1. Remove protective wrap and hold downs from the pallet.

2. Inspect for any shipping damage. If damage is found, save the packing material and contact the carrier immediately.

3. Check the interior of the dishwasher for the following items stowed inside:

• 1 set of dishracks

• Upper and lower spray arm assemblies

• Round scrap screen

• Rubber pads for leveling feet (set of 4)

• 3/4" line strainer (P/N 110768) (Model UH-200B, UH-200 Only)

• Warranty information packet

4. Remove the dishwasher from the skid.

5. Move the dishwasher to its permanent location.

Refer to Section 2.3, Permanent Placement.

7


2.3 Permanent Placement

Special Tools —

• Bubble level (3 ft.)

Perform the following steps to place the dishwasher in its permanent location.

Refer to the machine diagrams in Section 1.4, Dimensions and Capacities, page 4-5.

1. Before moving the dishwasher into position, inspect the location site to ensure the electrical, plumbing, and ventilation services (if required) are provided in the correct locations.

Compare the site connections with the dishwasher to ensure they will match when the machine is set in its permanent location.

NOTE:

Some local codes may require that the dishwasher be sealed to the floor with silicon or comparable sealing method.

2. Lift the dishwasher and adjust the leveling feet out.

3. Position dishwasher in its permanent location.

• Minimum clearance between the rear of the machine and back wall is 3" [76mm].

• Minimum height of the machine with adjustable feet turned in fully is 33-3/4" [858mm].

4. Place a 3 ft. level on top of the dishwasher or inside the dishwasher on the track assembly to level the dishwasher front to back. Adjust level by turning the adjustable feet. Level side to side with the level placed on the top of the dishwasher.

5. Pull the dishwasher out far enough to gain access to the rear and prepare utility connections. A removable rear access door is located at the back of the machine.

6. Install the rubber pads on the leveling feet prior to returning machine to its permanent position.

2.4 Water Connections

The following warning and attention statements apply to all dishwasher models.

WARNING:

The installation of this unit must conform to local codes or, in the absence of local codes, to all National Codes governing plumbing, sanitation, safety and good trade practices.

!! ATTENTION INSTALLER !!

The dishwashers described in Sections 2.4.1 and 2.4.2 are fitted with 6 ft. [1829mm],

1/2" I.D. flexible fill hoses located at the rear of the machine.

Make sure supply hose does not kink, resulting in a water flow restriction.

NOTE:

Your plumbing installation must allow the machine to be pulled out for repair.

8


2.4.1 (Water Connections) Models UH-200B, UH-200

Refer to the Table below for minimum water supply requirements.

Minimum

Incoming Water Supply

Temperature

Minimum-Maximum

Water Supply

Flowing Pressure* Model

UH-200B with

40 ° F/22 ° C Booster

UH-200B-70 with


UH-200 without

Booster

140

110 °

° F/60

F/43 °

° C

C

20-22 PSI (138-151 kPa)

20-22 PSI (138-151 kPa)

180 ° F/82 ° C 20-22 PSI (138-151 kPa)

*Flowing pressure is observed when the fill water solenoid valve is open while the machine is in a final rinse operation. Refer to Part 3, Operation, Section 3.21. for a description of the front panel display final rinse pressure readings.

1. If flowing pressure exceeds 22 PSI/151kPa, a pressure reducing valve, PRV, must be installed in the incoming water supply, and adjusted to the min/max listed above.

The PRV is supplied by others or may be purchased (unmounted) from Champion.

2. Champion supplies a 3/4" line strainer (unmounted) and shipped inside the dishwasher.

The line strainer must be installed in the water supply line upstream from the PRV.

3. A 3/4" manual shutoff valve (supplied by others) should be installed in the water supply line upstream from the PRV and line strainer. The valve must be the same size as or larger than the water supply line. The shutoff valve allows for servicing of the machine.

4. The dishwasher is supplied with a 1/2" I.D., 6 ft. [1829mm], reinforced flexible hose.

The hose is fitted with a 3/4" female garden hose fitting.

!

CAUTION:

The reinforced fill hose supplied with the dishwasher is designed for high pressure and high temperature application and should never be replaced with common garden hose.

5. Connect a 3/4" I.D. minimum copper water supply line fitted with a 3/4" male garden hose fitting (supplied by others). Make sure the water supply line is flushed out before making connection to the machine.

Figure 2.4.1

Water Connections

Model UH-200B, UH-200

(UH-200B shown)

6 ft. [1829mm] flexible fill hose

3/4" PRV, pressure reducing valve

3/4" line strainer

3/4" Water shutoff Valve

3/4" I.D. copper water supply line

9


2.4.2 (Water Connections) Models UH-100B, UH-100, UL-100

Refer to the Table below for minimum water supply requirements.

Minimum


Temperature

Minimum-Maximum


Pressure* Model

UH-100B with


UH-100B-70 with


UH-100 without

Booster

140

110 °

° F/60

F/43 °

° C

C

25-95 PSI (173-656 kPa)

25-95 PSI (173-656 kPa)

UL-100

180 ° F/82 ° C

140 ° F/60 ° C

25-95 PSI (173-656 kPa)

25-95 PSI (173-656 kPa)

*Incoming water supply pressure should be tested with a pressure gauge

(supplied by others) at the dishwasher water supply connection. Incoming water supply pressure must be able to maintain a minimum flowing pressure of 25 PSI [173 kPa].

1. The fill solenoid valve mounted in the machine (supplied by Champion) is equipped with a flow control that will accommodate the min./max. incoming line pressures listed above. A PRV, pressure reducing valve, is not required.

2. If incoming line pressure is below 25 PSI [173 kPa], the customer must make the necessary provisions to increase the incoming line pressure at the dishwasher to the required minimum of 25 PSI [173 kPa].

3. The fill solenoid valve is equipped with a built-in line strainer. A separate line strainer is not shipped with this machine.

4. A 3/4" manual shutoff valve (supplied by others) should be installed in the water supply line. The valve must be the same size as or larger than the water supply line. The shutoff valve allows for servicing of the machine.

5. The dishwasher is supplied with a 1/2" I.D., 6 ft. [1829mm], reinforced flexible hose.

The hose is fitted with a 3/4" female garden hose fitting.

!

CAUTION:

The reinforced fill hose supplied with the dishwasher is designed for high pressure and high temperature application and should never be replaced with common garden hose.

6. Connect a 3/4" I.D. minimum copper water supply line fitted with a 3/4" male garden hose fitting (supplied by others). Make sure the water supply line is flushed out before making connection to the machine. The installation of a pressure gauge (supplied by others) is recommended, but not required, in the 3/4" supply line after the shutoff valve.

Figure 2.4.2

Water Connections

Model UH-100B, UH-100, UL-100

(UH-100B shown)

6 ft. [1829mm] flexible fill hose

Pressure Gauge

3/4" Water shutoff Valve

3/4" I.D. copper water supply line

10


2.5 Drain Connections

The following instructions apply to all dishwasher models.

Refer to Fig. 2.5.3 below.

WARNING:

The installation of this unit must conform to local codes or, in the absence of local codes, to all National Codes governing plumbing, sanitation, safety and good trade practices.


All dishwashers are fitted with 6 ft. [1829mm], 5/8" I.D. flexible reinforced drain hoses located at the rear of the machine.

Make sure drain hose does not kink, resulting in a water flow restriction.

NOTE:

Your plumbing installation must allow the machine to be pulled out for repair.

!

1. The dishwasher drain hose may be routed to an indirect floor drain (not shown), or connected directly to a sink drain (see Fig. 2.5.3). The installer must follow all local plumbing, sanitary, and safety codes where applicable. Local codes may vary from the recommended connections shown in Fig. 2.5.3 below.

2. Connect the 5/8" I.D. flexible reinforced drain hose supplied to a 1-1/2" wye (Y) drain fitting. Use a 5/8" hose adapter (supplied by others).

3. Do not reduce the diameter of the drain hose connection or add additional length to the drain hose.

4. Do not connect the drain hose to a 90

° drain fitting. Do not use a 90 ° fitting

CAUTION:

The drain must have a minimum flow capacity of 15 US gal. per min [54 liters per minute], and

12.5 Imperial gallons per minute.

5. The maximum height of the drain or the drain hose should not exceed 3 ft. [915mm].

cut away to show rear

1-1/2"

"Y"

Fitting cut away to show rear

1-5/8"

[42mm]

Floor

Figure 2.5.3

Recommended Direct Drain Connections for All Models

1-1/2"

"Y"

Fitting

1-5/8"

[42mm]

Max. Drain

Height

3 ft.

[915mm]

Floor

11


2.6 Installation and Service Switch (Model UH-200B, UH-100B Only)

The following instructions apply to Models UH-200B and UH-100B which are equipped with a Champion built-in booster.

The Booster Installation and Service Switch is provided to fill the built-in booster tank with water prior to placing the dishwasher in service for the first time. It can also be used by service technicians to interrupt 120VAC control power to service the machine.


!

CAUTION:

Failure to fill the booster before operating the dishwasher will cause damage to the booster heater components and will void the machine warranty.

ALLA

TION

BOOSTER INST

AND SERVICE SWITCH

ON

OFF

BOOSTER FILL

Figure 2.6.1

Installation and Service Switch

Models UH-200B and UH-100B Only

NOTE:

Switch is located behind the lower front panel on the left front of the dishwasher.

NOTE:

Perform the following procedure after all plumbing and electrical connections have been made. Make sure the interior of the machine is clean and free of debris.

1. Remove screws holding lower front panel. Lift panel up, forward and off.

2. Push and hold the switch in the BOOSTER FILL position until you hear water entering the wash tank of the machine.

DO NOT FILL THE WASH TANK WITH WATER.

3. Release the switch.

4. Push the switch up to the ON position.

5. Booster fill is complete.

12


2.7 Electrical Connections (Single Phase)

2.7.1 Models UH-200B, UH-100B Only

WARNING:

The installation of electrical supplies and controls must conform to local codes or, in the absence of local codes, the National Electrical Code and good trade practices.

WARNING:

When working on the dishwasher, disconnect the electrical service and place a red tag at the disconnect switch to indicate work is being done on that circuit.


Use flexible conduit to connect incoming power to the dishwasher to allow the machine to be pulled out 5 ft. [1524mm] for servicing. A service loop is recommended. Service enters at the right rear corner of the machine. The main connection block is located on the right side of the dishwasher. See Section 1.4, page 4.

1. A qualified electrician must compare the electrical power supply with the machine electrical specifications stamped on the MACHINE ELECTRICAL CONNECTION

PLATE before connecting to the incoming service through a fused disconnect switch or circuit breaker (supplied by others). The plate is located near the main terminal block.

!

CAUTION:

DO NOT CONNECT models UH-200B or UH-100B to a 120VAC circuit or to a 208-240VAC (2 wire system) utilizing two power wires plus a ground.

2. Models UH-200B and UH-100B utilize a 208-240VAC (3 wire plus ground system) consisting of three power wires which includes a current carrying neutral wire.

A fourth wire for machine ground also must be provided.

Refer to the diagram and table below for UH-200B and UH-100B power requirements.

L1

120V

208-240V 120V

G

208-240/60/1

3 Wire Plus Ground System

Diagram

L2 N

Voltage

Hz

Phase

208/60/1

220/60/1

230/60/1

240/60/1

40

°F/22°C Rise Booster

Machine FLA

Min. Wire Amp/

Max. Fuse Size

70


Min. Wire Amp/

Machine FLA Max. Fuse Size

44.4

50/50 58.9

60/60

46.4

48.1

49.8

50/50

50/50

50/50

61.7

64.0

66.4

70/70

70/70

70/70

Single Phase Power Requirements


13


2.7 Electrical Connections (Single Phase) Cont.

2.7.2 Models UH-200, UH-100, UL-100 Only

WARNING:


WARNING:



Use flexible conduit or cable to connect incoming power to the dishwasher to allow the machine to be pulled out 5 ft. [1524mm] for servicing. A service loop is recommended. Service enters at the right rear corner of the machine. The main connection block is located on the right side of the dishwasher. See Section 1.4, page 4.



2. Models UH-200, UH-100 and UL-100 utilize a 120VAC power supply.

Power cord and plug are supplied by others.

Voltage

Hz

Phase

120/60/1

Machine

FLA

23.4

Min. Wire

Ampacity/

Max. Fuse Size

25/25


Models UH-200 Only

Voltage

Hz

Phase

120/60/1

Machine

FLA

19.3

Min. Wire

Ampacity/

Max. Fuse Size

25/25


Models UH-100 Only

Voltage

Hz

Phase

120/60/1

Machine

FLA

12.5

Min. Wire

Ampacity/

Max. Fuse Size

15/15


Models UL-100 Only

14


2.8 Electrical Connections (Three Phase)

2.8.1 Models UH-200B, UH-100B Only

WARNING:


WARNING:



Use flexible conduit to connect incoming power to the dishwasher to allow the machine to be pulled out 5 ft. [1524mm] for servicing. A service loop is recommended. Service enters at the right rear corner of the machine. The main connection block is located on the right side of the dishwasher. See Section 1.4, page 4.



2. Models UH-200B and UH-100B utilize a 208-240VAC (4 wire plus ground system) consisting of four power wires which includes a current carrying neutral wire.

A fifth wire for machine ground also must be provided.

!

CAUTION:

Before connecting power to the machine check that the voltage between the power wire chosen and the current carrying neutral does not exceed 120VAC

± 15VAC.

Refer to the diagram and table below for UH-200B and UH-100B power requirements.

G

120V

208-240V

208-240V 208-240V

208-240/60/3

4 Wire Plus Ground System

Diagram

N L1 L2 L3

Voltage

Hz

Phase

208/60/3

220/60/3

230/60/3

240/60/3

40


Machine FLA

Min. Wire Amp/

Max. Fuse Size

70


Machine FLA

Min. Wire Amp/

Max. Fuse Size

32.0

35/35 40.3

45/45

33.2

34.3

35.4

35/35

35/35

40/40

42.0

43.5

45.0

45/45

45/45

50/50

Three Phase Power Requirements


15


2.9 Chemical Connections

2.9.1 General (All Models)

!! ATTENTION DISHWASHER OWNER !!

Your dishwasher is designed to work best with liquid commercial dishwashing chemicals.

Detergents must be a commercial non-foaming liquid. Champion strongly recommends that you contact a qualified chemical supplier to supply these products and to setup your machine for the first time.

Your machine was shipped with the chemical dispensing adjustments set at their minimum settings, because of variations in chemical products. As a result of these variations, Champion is not able to advise you on the proper dispenser settings for any particular product nor can we recommend one supplier over another. You may wish to consult your equipment dealer or your

Champion authorized service agent for help in contacting a chemical supplier in your area.

NOTE:

Residential automatic dishwashing detergents and rinse aids found in most grocery stores are designed to work in machines with cycles of 15 minutes or longer.

Your Champion dishwasher cycle is complete in less than 3 minutes.

Champion does not recommend the use of residential automatic detergents and rinse aid products. These products may accumulate in your machine and produce poor washing results.

!

CAUTION:

Never use residential non-automatic dishwashing detergents such as JOY ™ or

DAWN™, or any other liquid designed for the handwashing of wares, in your machine.

Extreme foaming inside your Champion dishwasher will cause operation problems.

NOTE:

FOR MODEL UL-100 ONLY

The UL-100 model is a low temperature dishwasher utilizing a chemical sanitizing final rinse. Use a sodium hypochlorite (Chlorine) based sanitizer at a minimum concentration of 50 PPM in the final rinse. Use chlorine test papers to verify and monitor the 50 PPM chlorine level. (Consult local authority in Canada for proper concentration).

Some metals, including silver, aluminum, and pewter, are attacked by sodium hypochlorite (chlorine sanitizer). Avoid washing these metals in a UL-100 model dishwasher.

16


2.9.1 General (All Models) Cont.

NOTE:

The detergent and rinse aid chemical dispensing pumps are optional equipment on

Models UH-200B, UH-200, UH-100B, and UH-100 dishwashers. The pumps may have been specified when the dishwasher was ordered and installed at the factory.

The following instructions assume that your dishwasher was delivered to your installation site with the dispensing pumps installed and explains the procedures for placing the chemical dispensing system in service for the first time.

If optional pump(s) are not installed, Refer to Section 2.10, Installing Optional

Chemical Pumps, to install the chemical pump(s) before proceeding with

Sections 2.9.2 through 2.9.4.

Three chemical dispensing pumps (detergent, rinse aid, and sanitizer) are standard on the UL-100 model.

!! ATTENTION CHEMICAL SUPPLIER !!

WARNING:

The instructions contained in Sections 2.9.2 through 2.9.4 require adjustments to the

Fill/Chemical Dispenser Circuit Board located inside the top mounted slide-out control cabinet. When working on the dishwasher, disconnect the electrical service and place a red tag at the disconnect switch to indicate work is being done on that circuit.

NOTE:

Refer to Part 7, Solid State Circuit Board Set-up and Repair, Section 7.3.5, page 66,

Fill/Chemical Dispenser Board, before making any adjustments to the dispenser board settings.

.

Perform the following steps in preparation for making dispenser pump adjustments.

1. Loosen – do not remove – the (2) retaining screws at the bottom of the lower front access panel. Lift the lower panel up and forward to remove.

2. Check for chemical dispensing pump(s) located at the front of the machine base.

3. Refer to Fig. 2.9.1.

Open the dishwasher door.

4. Locate the two screws, one in each corner of the top hood, that retain the slide-out control cabinet.

5. Remove the screws and pull the slide-out cabinet forward to gain access to the

Fill/Chemical Dispenser Circuit Board.

(continued on next page)

FILL

/

CHEMICAL

DISPENSER BOARD

Figure 2.9.1

Control Cabinet

Retaining Screws

17


2.9 Chemical Connections (Cont.)

2.9.1 General (All Models) Cont.

!! ATTENTION CHEMICAL SUPPLIER !! (continued from previous page)

6. Refer to Fig. 2.9.2 showing the Fill/Chemical Dispenser Circuit Board.

7. There are (4) adjustable potentiometers.

• Fill2 to 40 seconds

• Detergent1 to 30 seconds

• Sanitizer-

• Rinse aid-

1 to 30 seconds

1 to 30 seconds

8. Two dots on one end of the potentiometer serve as the dial pointer.

9. Turn CW to increase time setting.

2

1

3

4

5

6

7

8

9

0

DOTS ON END

OF POTENTIOMETER

10

2

1

3

4

0

5

FILL

6

7

10

8

9

2

1

3

4 5

6

7

8

9

2

1

3

4

5

6

7

0 10 0 10

DETERGENT SANITIZER

8

9

2

1

3

4

0

5

6

7

RINSE

AID

10

8

9

NOTE:

The graduated numbers

(0-10) around the potentiometers

DO NOT correspond to time settings.

Use them for position reference only, not an actual time setting indication.

Figure 2.9.2

Fill/Chemical Dispenser Circuit Board

Refer to Sections 2.9.2 through 2.9.4 for specific adjustments and chemical priming instructions for your model dishwasher.

10. Refer to Fig. 2.9.3. showing the recommended chemical bottle placement.

Bottles may be placed on either side of the dishwasher.

11. Bottles must be placed no farther than

6 ft. [1829mm] from the machine.

12. I.D. tags identify chemical tubing.

13. Pick-up tubes are inserted directly in chemical bottles.

I

.

D

.

TAG

INSERT PICK

-

UP

TUBE IN BOTTLE

Route chemical tubing through rear access hole above fill and drain hose access cut away to show rear

Max.

6 ft.

[1829mm]

Floor

Figure 2.9.3

Chemical Bottle Placement

18


2.9.2 Models UH-200B, UH-200 (Chemical Adjust and Prime)

The following chemical adjustment information applies to UH-200B and UH-200 only.

Refer to Section 2.9.1, page 18, for a description of the dispenser adjust potentiometers.

1. The data below will assist in adjusting the time settings for the dispenser pumps:

• The wash tank holds 3.6 US gal. [13.6 liters] of water.

• Initial fill receives three doses of detergent from the detergent pump.

• Detergent is injected in the wash tank through a fitting at the rear of the wash tank.

• Detergent is injected during the first 1 to 16 seconds of the wash cycle.

• The final rinse utilizes 1.1 US gal [4.2 liters] of water per rack.

• Rinse aid is injected into the final rinse manifold. The manifold is located in the top left rear corner of the dishwasher.

• Rinse aid is injected during the last 11 seconds of the final rinse cycle.

Dispenser pump output rates:

• Detergent69 ml/min.

• Rinse aid35 ml/min.

Detergent time adjustment- Turn the POT CW to increase run time from the beginning of the wash cycle.

Rinse aid time adjustment- The final rinse cycle is 11 seconds. Turning the POT CW moves the pump start point backward from the end of the rinse cycle.

2. The following describes the operation of the chemical prime button.


• The POWER button must be pushed ON to operate the prime button.

• The PRIME button is enabled whenever the temperature display is active.

• The PRIME button operates both dispensing pumps at the same time.

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

160 F

TEMPERATURE PRESSURE

Figure 2.9.4

UH-200B, UH-200 Touchpad/Display

To prime the detergent and rinse aid pumps:

3. Insert pick-up tubes in the chemical bottles.

4. Push POWER button ON.

Machine fills. Temperature is displayed.

5. Open dishwasher door and observe detergent injection point on rear wall of machine.

6. Push and hold PRIME button until detergent is observed entering the machine.

7. Push and hold the PRIME button and observe chemical flowing at the rinse aid injection point located in the final rinse manifold.

8. Priming is complete.

Rinse aid injection point

PRIME

Final rinse manifold

Figure 2.9.5

Rinse aid injection point

Models UH-200B, UH-200

19


2.9.3 Models UH-100B, UH-100 (Chemical Adjust and Prime)

The following chemical adjustment information applies to UH-100B and UH-100 only.



• The wash tank holds 1.8 US gal. [6.8 liters] of water.

• Proper fill water level is even with the bottom of the round scrap screen.

• Detergent and rinse aid enter the wash tank through the fill chute on the left side of the machine.



• Rinse aid is injected as the fill/rinse valve adds water during the final rinse.





Rinse aid time adjustment- The final rinse cycle is 15 seconds. Turning the POT CW moves the pump start point backward from the time the fill valve closes for the final rinse.

2. The following describes the operation of the chemical prime buttons.


• The POWER button must be pushed ON to operate the prime button.

• The PRIME button is enabled whenever the temperature display is active.

• The PRIME button operates both dispensing pumps at the same time.

Champion

POWER START

EXTENDED

WASH

160 F

TEMPERATURE

Figure 2.9.6

UH-100B, UH-100 Touchpad/Display

To prime the detergent and rinse aid pumps:

3. Insert pick-up tubes in the chemical bottles.



5. Open dishwasher door and observe fill chute on left inside of machine.

6. Push and hold PRIME button until detergent and rinse aid are observed entering the interior of the machine.

Rinse aid is usually blue in color, hold PRIME button until the colored liquid is detected.


PRIME

Figure 2.9.7

Fill Chute

Models UH-100B, UH-100, UL-100

20


2.9.4 Models UL-100 (Chemical Adjust and Prime)

The following chemical adjustment information applies to UL-100 only.



• The wash tank holds 2.5 US gal. [10 liters] of water.

• Proper fill water level is even with the top of the handle on the round scrap screen.

• Detergent, rinse aid and sanitizer enter the wash tank through the fill chute on the left side of the machine.



• Rinse aid is injected as the fill/rinse valve adds water during the final rinse.




• Sanitizer69 ml/min


Rinse aid time adjustment- The final rinse cycle is 15 seconds. Turning the POT CW moves the pump start point backward from the time the fill valve closes for the final rinse.

2. The following describes the operation of the chemical prime buttons.


• The POWER button must be pushed ON to operate the prime buttons.

• The PRIME buttons are enabled whenever the temperature display is active.

• The PRIME buttons operate their respective dispenser pumps independently.

Champion

POWER START

To prime the dispensing pumps:

EXTENDED

WASH

140 F

TEMPERATURE

Figure 2.9.8

UL-100 Touchpad/Display

3. Insert pick-up tubes in their respective chemical bottles.



5. Open dishwasher door and observe fill chute on left inside of machine.

6. Push and hold each PRIME button in succession

• Detergent

• Rinse aid

• Sanitizer

7. Observe that each chemical enters the machine.


PRIME

DETERGENT SANITIZER RINSE AID

Figure 2.9.9

Fill Chute Discharge

Models UH-100B, UH-100, UL-100

4-2

21


2.10 Installing Optional Chemical Pumps

Perform the following steps to install the optional detergent and rinse aid pumps for the models in Sections 2.10.1 and 2.10.2

WARNING:

When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch to indicate work is being done on that circuit.

2.10.1 Models UH-200B, UH-200

Refer to Fig. 2.10.1 at right.

The illustration shows the typical installation of the detergent and rinse aid pumps. Pump kits contain the necessary parts for field installation and are available from your authorized

Champion parts supplier.

Signal connection points: 2A Max @

120VAC

• The detergent pump is a peristaltic pump enclosed in a black housing.

• The rinse aid pump is a peristaltic pump enclosed in a black housing..

Route tubing Rinse aid Detergent

Figure 2.10.1

UH-200B, UH-200 Chemical Pumps

To install the detergent pump:

1. Remove the lower front access panel.

2. Mount the pump on the machine base with two screws.

3. Route the detergent tubing out the rear of the machine through the access hole located above and between the fill and drain hoses.

4. Pump rotation is clockwise. The supply tube connects on the left side of the pump the discharge tubing connects on the right side of the pump.

5. Remove the 1/8" plug at the rear of the machine and replace with the 90

° detergent fitting.

Apply teflon tape to the fitting threads to ensure a watertight seal.

4-16

(continued of next page)

4-9

22


2.10.1 Models UH-200B, UH-200

(continued from previous page)

To install the detergent pump (continued):

6. Connect the detergent tubing from the outlet of the pump to the 90

° fitting

7. Connect the pump motor wires to the harness wires supplied in the installation kit.

8. Refer to Fig. 2.10.2 below.

Connect the wiring harness to the 10 pin terminal block located on the lower right side of the machine. Connect the #2 harness wire to the Common (#2) terminal on the block.

Connect the #24 wire to the Detergent #24 terminal on the block.

9. Refer to Section 2.9.2, page 19, for pump priming and adjustment procedures.

10. Check all connections for leaks.

11. Installation is complete.

4-10 H04

Common

Hot

PUMP

MOTOR

Harness #2

Harness # x

To

Terminal

Block

# x =

Detergent #24

Rinse aid #25

Sanitizer #26

!!ATTENTION INSTALLER!!

If you are installing pumps not supplied by Champion then the chemical connection points are limited to 2 AMP maximum.

2 AMP maximum amp load per pump;

6 AMP total amp load.

4

6

54

24

25

26

2

2

2

Figure 2.10.2

Chemical Pump Connection Terminal Block

(Lower right side of machine base)

4

6

54

24

25

26

2

2

2

24

25

26

2

2

2

DET

R/A

SANI

COM

COM

COM

23


2.10 Installing Optional Chemical Pumps (Cont.)

2.10.1 Models UH-200B, UH-200

To install the rinse aid pump:



3. Route the rinse aid tubing out the rear of the machine through the access hole located above and between the fill and drain hoses.

4. Pump rotation is clockwise. The supply tube connects on the left side of the pump; the discharge tubing connects on the right side of the pump.

5. Remove the 1/8" plug located in the final rinse manifold.

6. Install the rinse aid check valve. Apply teflon tape to the valve threads to ensure a seal.

7. Route the rinse aid tubing to the rinse manifold and connect to the check valve.

8. Connect the pump motor wires to the harness wires supplied in the kit with wire nuts.

9. Refer to Fig. 2.10.2 on page 23.


Connect the #25 wire to the rinse aid #25 terminal on the block.




4-4

4-16

4-5 4-6

24


2.10.2 Models UH-100B, UH-100

Chemical discharge tubes were installed at the factory and stowed in the base of the machine.

Installation of the optional detergent pump and/or the rinse aid pump requires mounting the pump, connecting all tubing to the pump(s) and making the electrical connections.

WARNING:

When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch to indicate work is being done on that circuit.

Refer to Fig. 2.10.3 at right.

The illustration shows the typical installation of the detergent and rinse aid pumps. Pump kits contain the necessary parts for field installation and are available from your authorized

Champion parts supplier.

• The detergent pump is a peristaltic pump enclosed in a black housing.

• The rinse aid pump is a peristaltic pump enclosed in a black housing.

Signal connection points: 2A Max @

120VAC

Route tubing Rinse aid

Figure 2.10.3

UH-100B, UH-100 Chemical Pumps

Detergent

To install the detergent pump:



3. Route the detergent pick-up tube and tubing out the rear of the machine through the access hole located above and between the fill and drain hoses.

4. Connect the supply and discharge tubing to the pump.

Pump rotation is clockwise. The supply tube connects on the left side of the pump; the discharge tubing connects on the right side of the pump.

5. Chemical discharge tubing runs to the fill chute assembly located on the left side of the machine.

6. The fill chute discharge is located on the left interior wall of the wash chamber.

1-9A

(continued of next page)

4-16 4-2

25


2.10 Installing Optional Chemical Pumps (Cont.)

2.10.2 Models UH-100B, UH-100


To install the rinse aid pump:



3. Route the pick-up tube and rinse aid supply tubing out the rear of the machine through the access hole located above and between the fill and drain hoses.

4. Pump rotation is clockwise. The supply tube connects on the left side of the pump; the discharge tubing connects on the right side of the pump.

5. The rinse aid discharge tubing is preinstalled and is marked by a blue tag.

Connect the discharge tubing to the pump using a tie wrap supplied in the kit.

6. Connect the supply tubing to the left side of the pump and route the pick-up tube to the chemical container.

7. Connect the pump motor wires to the harness wires supplied in the kit with wire nuts.

8. Refer to Fig. 2.10.2 on page 23.


Connect the #25 wire to the rinse aid #25 terminal on the block.




2.11 Initial Start-up

(All Models)

Review Part 2, Installation, Sections 2.2 through 2.10, to ensure that all plumbing, electrical, and chemical connections have been properly made by qualified personnel.

√

√

√

Plumbing connections are the proper size and supply pressures are correct.

• Water supply is on.

• Drains are correct size and functional.

Electrical power requirements and wiring connections are correct.

• Power is on at the main service panel.

Chemical Dispensing systems are installed and chemical supplies replenished.

• Detergent and rinse aid for Models UH-200B, UH-200, UH-100B, UH-100.

• Detergent, rinse aid, and sanitizer for Model UL-100.

(See next page)

26


Review Part 3, Daily Operation, Sections 3.1 through 3.5, for instructions on the operation of your dishwasher, then perform the following checks for your model machine:

2.11.1 Models UH-200B, UH-200 (Initial Start-up)

Water Level Probe

√ Push the POWER button.

• 888F, and LED's flash on display

• No error codes (E0, E1, E2, E3)

• Machine fills

• Detergent pump runs (if applicable)

√

√

√

√

√

√

√

√

√

Open door and check water level in tank

• Water level at middle sensor of water level probe.

Probe located on interior left side of dishwasher.

• Close door.

• Check for leaks around dishwasher.

Run a cycle without dishes to bring the machine to operating temperature.

• 150

°F/66°C

Push START button.

• Check for leaks.

• Dishwasher completes normal cycle.

• Final rinse temperature reaches minimum of 180

°F/82°C.

Push POWER button.

• Displays flash 888F

• Dishwasher completes normal auto-shutdown cycle.

• Check for leaks in drain piping.

Water

Level

Push the POWER button.

• Machine fills again.

Push START button.

• Machine begins cycle

Push EXTENDED WASH button.

• Wash cycle holds in continuous wash mode

• Extended wash LED illuminates.


• Wash cycle returns to normal wash mode

• Extended wash LED goes out.

• Normal cycle completed.

Push POWER button.



• Initial Start-up is complete.

27


2.11 Initial Start-up (Cont.)

2.11.2 Models UH-100B, UH-100, UL-100

√

√

√

√


• 888F, and LED's flash on display

• No error codes (E0, E1, E2)

• Machine fills, LO display is normal.

• Detergent pump runs (if applicable)

Open door and check water level in tank

• (UH-100B, UH-100) Water level even

with the bottom of the round scrap screen

• (UL-100) Water level even with the

top of the handle on the round scrap screen

Close door.

• Check for leaks around dishwasher.

2

1

3

4

5

6

7

8

9

0

DOTS ON END

OF POTENTIOMETER

10

2

3

4

1

0

5

FILL

6

7

10

8

9

2

1

3

4 5

6

7

8

9

2

3

4

1

5

6

7

0 10 0 10

DETERGENT SANITIZER

8

9

2

3

4

1

0

5

6

7

8

9

RINSE

AID

10

Check wash tank minimum operating temperature.

• (UH-100B, UH-100) minimum 150

°F/66°C.

• (UL-100) minimum 120

°F/49°C, optimum 140°F/60°C.

NOTE:

Refer to Part 7, Section 7.3.5, pages 66-67, for instructions on adjusting the fill water level for Models UH-100B,

UH-100, and UL-100 dishwashers.

√

√

√

√

√

√

√

Push START button.

• Check for leaks.

• Dishwasher completes normal cycle.

• Final rinse temperature reaches minimum of 180

°F/82°C for UH-100B, UH-100.

• Final rinse temperature maintains minimum of 120

°F/49°C for UL-100.

Push POWER button.


• Dishwasher completes auto-shutdown cycle.

• Check for leaks in drain piping.

UH-100B, UH-100

Water Level

Halfway up the sloped angle of screen handle


• Machine fills again.

Push START button.

• Machine begins cycle


• Wash cycle holds in continuous wash mode

• Extended wash LED illuminates.


• Wash cycle returns to normal wash mode

• Extended wash LED goes out.

• Normal cycle completed.

Push POWER button.



• Initial Start-up is complete.

UL-100

Water Level even with top of screen handle

28

Part 3: DAILY OPERATION

PART 3: DAILY OPERATION


In This Part—

• Preparing your Dishwasher

• Dishwasher Loading

• Description of Operator Controls

• Basic Operation

3.2 Preparing your Dishwasher (All Models)

Review Part 2, Installation, and check your site to ensure that all plumbing and electrical connections have been properly made by qualified personnel.

Check the installation of chemical dispensing systems, if applicable.

Perform the following steps to prepare your machine for operation.

1. Check the exterior of the machine for any foreign material and remove.

2. Check the interior of the machine and remove any foreign material.

3. Remove the lower spray arm(s) and the round scrap screen.

4. Make sure the pump intake strainer located in the bottom of the sump is in place and clean.

5. Replace the round scrap screen and clean if required.

6. Make sure the upper and lower spray arms are in place and nozzles are clean.

The arms are held in place by knurled retaining screws. The arms are interchangeable.

• Models UH-200B, and UH-200 have separate upper and lower wash and upper and lower rinse arms.

• Models UH-100B, UH-100, and UL-100 have upper and lower wash arms.

7. Check the chemical supply containers, and fill as required.

8. Open the water supply valve. Check for leaks and take corrective action as required.

9. Check the drain and/or drain connections to ensure drains are functional.

10. Turn the main power on at the breaker panel or fused disconnect switch.

Knurled retaining screw

Pump Intake

Screen

All Models UH-100B, UH-100, UL-100 Shown

29


3.3 Loading your Dishwasher (All Models)

Perform the following steps to prepare and load your wares for washing.

1. Scrape and rinse wares to remove heavy food particles and other debris.

2. Place dishes edgewise in a peg rack.

Place cups and bowls upside down in a flat rack.

Spread silverware evenly in a single layer in a flat bottom rack.

Batching silverware upright in a utensil cup is not recommended.

DO NOT OVERLOAD DISHRACKS.

3. Place the loaded dishrack on the open door and slide into the dishwasher.

DO NOT WASH

MORE THAN ONE

RACK AT A TIME.

Champion

POWER START

EXTENDED

WASH TEMPERATURE PRESSURE

PRIME

Champion

POWER START

EXTENDED

WASH TEMPERATURE PRESSURE

PRIME

Champion

POWER START

EXTENDED

WASH


PRIME

!

CAUTION:

Never stand or sit on the door, nor place heavy boxes or crates on the door.

30


3.4 Description of Operator Controls and Displays

Note the location and function of the following components. These components directly affect the normal operation of all other operator controls.

Door Safety Switch Magnet:

The door safety switch magnet is located at the top left inside corner of the door.

The magnet operates the door safety switch located in the top mounted slide-out control cabinet.

The door must be fully closed whenever the dishwasher is in an automatic cycle.

NOTE:

The dishwasher will not operate when the

POWER button is pushed, if the door is open on initial power up.

Door

Magnet

Figure 3.4.1

Door Safety Magnet Location

Control Circuit Breaker

The 8 AMP control circuit breaker is located on the left lower side of the dishwasher behind the lower front access panel.

The circuit breaker is designed to trip and break the 120VAC control voltage to the dishwasher in the event of an overload or other abnormal condition. This protects the dishwasher's solid state circuitry.

The circuit breaker must be reset manually.

The dishwasher will not operate if the circuit breaker has tripped.

Circuit

Breaker

Figure 3.4.2

Circuit Breaker Location

31


3.4 Description of Operator Controls and Displays (Cont.)

Refer to the illustrations and table below for the location and function of the operator controls and displays.

Touchpad/Display

2 4 6 7 9 10 11

Champion

1

POWER START

EXTENDED

WASH

3 5 8

WASH

RINSE


PRIME

UH-200B, UH-200

2 4 6

Champion

1

POWER START

EXTENDED

WASH

3 5

9

TEMPERATURE

2 4 6

Champion

1

POWER START

EXTENDED

WASH

3 5

9

TEMPERATURE

11

PRIME

UH-100B, UH-100

PRIME

11


UL-100

32


1

CONTROL

Power

ON/OFF

Switch

TYPE

Touchpad membrane switch

2

3

Power

ON LED

Start Switch

4 Cycle ON LED

5 Extended

Wash

Switch

Touchpad light emitting diode




6 Extended

Wash LED

7

Wash

Temperature

LED



8

9

Rinse

Temperature

LED

Temperature

Display

10 Final Rinse

Water Pressure

Display


LED display mounted on timer board

LED display mounted on timer board

11 Chemical

Pump

Prime

Switch(es)

Touchpad membrane switch(es)

DESCRIPTION OF OPERATION

All Models:

Power is OFF. Push Power Button—

Activates the solid state controls and begins automatic fill operation.

Power is ON. Push Power Button—

Begins auto-shutdown cycle. Turns power OFF when auto-shutdown cycle is complete.

All Models:

Indicates when power is ON.

All Models:

Starts the dishwasher automatic cycle.

All Models:

Indicates an automatic cycle has been selected.

All Models:

Pauses the wash cycle and holds machine in a continuous wash mode. Push again, machine finishes wash cycle followed by a final rinse.

All Models:

Indicates machine is in extended wash mode.

Model UH-200B, UH-200 ONLY:

Indicates that temperature display (9) is showing the temperature of the water in the wash tank during the automatic cycle.


Indicates that temperature display (9) is showing the temperature of the water in the final rinse manifold during a final rinse.

All Models:

Indicates the temperature sensed by the wash or the final rinse temperature probe.


Indicates the flowing pressure of water in the final rinse manifold during the final rinse cycle.

Min./Max. 20-22 PSI [138-151 kPa].

All Models:

Operates the chemical pumps whenever (9) is activated. UH-200B, UH-200, UH-100B, UH-100 single switch operates both pumps at same time.

UL-100 each prime switch operates its pump independently.

33

Part 3: OPERATION

3.5 Basic Operation

The following illustrations and diagrams describe the basic operation of your dishwasher.

Review Sections 3.2 and 3.3 before operating your machine.

NOTE:

All temperature readings in the instructions below are given in degrees Fahrenheit (

°F).

Pressure readings are given in pounds per square inch (PSI).

All models provide a metric option to display temperature in degrees Celsius (

°C) and pressure in kilopascals (kPa). Temperature readings and error codes are followed by the letter "C" when the metric option is enabled.

3.5.1 Operating the UH-200B and UH-200

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

LO


PRIME

Push the POWER Button:

All LEDs illuminate and 888F flash on displays.

Internal diagnostics displays Error Codes: E1, E2, E3 in temperature display if problem exists.

Power LED lit. LOF displayed if wash temp is below 115

°

F, actual wash temp displayed above 115

°

F/46

°

C.

PRIME button is active whenever the temperature is displayed.

Machine Fills. Optional detergent pump injects detergent.

Wash tank heat on (UH-200B, UH-200). Booster heat on (UH-200B only).

Wash LED illuminates indicating the temperature display is reading wash tank temperature.

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

150 F


PRIME

(If the START button is pushed during initial fill the Start LED will illuminate indicating that a cycle has been selected but the machine will complete the fill before the cycle begins.

Run one automatic cycle WITHOUT DISHES to bring the dishwasher to operating temperature.

Push the START Button:

The Start LED illuminates and the automatic 90-second cycle begins. Detergent pump adds detergent.

Wash pump runs for 60 seconds.

Wash pump stops, machine drains a portion of the water out of the wash tank.

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

180 F 20


PRIME

Rinse LED illuminates indicating the temperature display is reading final rinse temperature.

Final rinse operates for 11 seconds. Optional rinse aid pump injects rinse aid.

Final rinse temperature 180 ° F/82 ° C minimum. Final rinse flowing pressure 20 PSI/138 kPa minimum.

Pressure display indicates final rinse flowing pressure.

Rinse LED goes out. Start LED goes out. Automatic cycle is complete.

Open door, remove rack, insert another rack and repeat.

Opening the door anytime during the cycle pauses the cycle. Cycle resumes where it stopped when door is closed. Pushing the POWER button stops the cycle and initiates the AUTO-SHUTDOWN CYCLE.

34


3.5.1 Operating the UH-200B and UH-200 (Cont.)

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

150 F


PRIME

EXTENDED WASH FEATURE

The EXTENDED WASH button pauses the normal wash cycle and holds the dishwasher in a continuous wash mode until the extended wash button is pushed again. To activate the extended wash feature:

Push the START button to begin a cycle.

WAIT 16 seconds to allow the optional detergent pump time to inject detergent.

Push the EXTENDED WASH button.

The Extended Wash LED illuminates. The Power LED remains lit, the Start LED remains lit.

Dishwasher is held in continuous wash mode.

Push the EXTENDED WASH button again.

The Extended Wash LED goes out. The Power LED remains lit, the Start LED remains lit.

If the extended wash is deactivated before the 60-second wash cycle is complete, the dishwasher will complete the normal wash cycle, drain and finish with a final rinse.

If the extended wash is deactivated after the 60-second wash cycle time has elapsed, then the dishwasher will immediately drain, and finish with a final rinse.

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

150 F


PRIME

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

888F 888


PRIME

AUTO-SHUTDOWN CYCLE

At the end of the day, pushing the POWER button initiates the Auto-shutdown cycle which includes an automatic interior rinse down to aid in cleaning the machine. Pushing the POWER button when the dishwasher is in cycle also will start the auto shutdown cycle.

To activate the auto shutdown cycle:


All LED's go out.

The Temperature display and the Pressure display flash 888F.

The machine drains.

The fill valve opens to rinse down the interior of the dishwasher.

The machine drains completely.

All displays go out.

Dishwasher is OFF.

Begin cleaning operation or push POWER button to refill dishwasher.

NOTE:

If the dishwasher is idle for more than 4 hours, it will automatically enter the auto-shutdown cycle.

This completes the basic operation for the UH-200B and UH-200.

35


3.5 Basic Operation (Cont.)

NOTE:

All temperature readings in the instructions below are given in degrees Fahrenheit (

°F).

Pressure readings are given in pounds per square inch (PSI).

All models provide a metric option to display temperature in degrees Celsius (

°C) and pressure in kilopascals (kPa). Temperature readings and error codes are followed by the letter "C" when the metric option is enabled.

3.5.1 Operating the UH-100B and UH-100, and UL-100

Champion

POWER START

EXTENDED

WASH

LO

TEMPERATURE

PRIME

Push the POWER Button:

All LEDs illuminate and 888F flash on displays.

Internal diagnostics displays Error Codes: E0, E1, E2 in temperature

PRIME display if problem exists.

Power LED lit. LOF displayed if wash temp is below 115 ° F, actual wash temp displayed above 115 ° F/46 ° C.


PRIME button(s) are active whenever the temperature is displayed. (UL-100 has three PRIME buttons)

Machine Fills.

Wash tank heat on (UH-100B, UH-100). Booster heat on (UH-100B only).

Model UL-100 does not have tank heat.

Champion

POWER START

EXTENDED

WASH

150 F

TEMPERATURE

(140 ° F/60 ° C for UL-100)

PRIME

(If the START button is pushed during initial fill the Start LED will illuminate indicating that a cycle has been selected but the machine will complete the fill before the cycle begins.

Model UH-100B, UH-100

Run one automatic cycle WITHOUT DISHES to bring the dishwasher to operating temperature.

UH-100B, UH-100 minimum wash temperature of 150 ° F/66 ° C.

UL-100 minimum wash temperature is 120 ° F/49 ° C. The optimum temperature for UL-100 is 140 ° F/60 ° C.

Push the START Button:

The Start LED illuminates and the automatic cycle begins. Detergent pump adds detergent.

Wash pump runs.

Wash pump stops, machine drains the water out of the wash tank.

(continued on next page)

36


3.5.1 Operating the UH-100B and UH-100, UL-100 (Cont.)

Champion

(140 ° F/60 ° C for UL-100)

180 F

TEMPERATURE

PRIME

POWER START

EXTENDED

WASH

Drain Stops.

Fill/Rinse valve opens and hot water enters the wash tank.

(UH-100B, UH-100 Optional rinse aid pump injects rinse aid.)

(UL-100 ONLY Standard rinse aid pump injects rinse aid. Standard sanitizer pump injects sanitizer.)

Temperature display indicates temperature of the final rinse water.

Final rinse temperature 180 ° F/82 ° C minimum for UH-100B, UH-100.

Final rinse temperature 120 ° F/49 ° C minimum, 140 ° F/60 ° C optimum for UL-100.

Wash pump runs for 3 seconds and stops.

Fill/Rinse valve closes.

Wash pump runs again until final rinse cycle is complete.

} The three second wash pump run time as the fill/rinse valve adds final rinse water to the wash tank removes air and makes sure the wash pump pumps at maximum capacity.

Wash pump stops

Start LED goes out. Automatic cycle is complete.

Open door, remove rack, insert another rack and repeat.

Opening the door anytime during the cycle pauses the cycle. Cycle resumes where it stopped when door is closed. Pushing the POWER button stops the cycle and initiates the AUTO-SHUTDOWN CYCLE.

Champion

POWER START

EXTENDED

WASH

150 F

TEMPERATURE

(140 ° F/60 ° C for UL-100)

PRIME

EXTENDED WASH FEATURE

The EXTENDED WASH button pauses the normal wash cycle and holds the dishwasher in a continuous wash mode until the extended wash button is pushed again. To activate the extended wash feature:

Push the START button to begin a cycle.

WAIT 16 seconds to allow the optional detergent pump (standard on UL-100) time to inject detergent.

Push the EXTENDED WASH button.

The Extended Wash LED illuminates. The Power LED remains lit, the Start LED remains lit.

Dishwasher is held in continuous wash mode.

Push the EXTENDED WASH button again.

The Extended Wash LED goes out. The Power LED remains lit, the Start LED remains lit.

If the extended wash is deactivated before the wash cycle is complete, the dishwasher will complete the normal wash cycle, drain and finish with a final rinse.

If the extended wash is deactivated after the normal wash cycle time has elapsed, then the dishwasher will immediately drain, and finish with a final rinse.

(continued on next page)

37


3.5.1 Operating the UH-100B and UH-100, UL-100 (Cont.)

Champion

POWER START

EXTENDED

WASH

150 F

TEMPERATURE

(140 ° F/60 ° C for UL-100)

PRIME

Champion

POWER START

EXTENDED

WASH

888F

TEMPERATURE

PRIME

AUTO-SHUTDOWN CYCLE

At the end of the day, pushing the POWER button initiates the auto-shutdown cycle which includes an automatic interior rinse down to aid in cleaning the machine. Pushing the POWER button when the dishwasher is in cycle also will start the auto-shutdown cycle. To activate the auto-shutdown cycle:


All LED's go out.

The Temperature display flash 888F.

The machine drains.

The fill valve opens to rinse down the interior of the dishwasher.

The wash pump runs to complete the interior rinse down.

The machine drains completely.

All displays go out.

Dishwasher is OFF.

Begin cleaning operation (See Part 4, page 39) or push POWER button to refill dishwasher.

NOTE:

If the dishwasher is idle for more than 4 hours, it will automatically enter the auto-shutdown cycle.

This completes the basic operation for the UH-100B, UH-100 and UL-100.

38

Part 4: CLEANING AND MAINTENANCE

PART 4: CLEANING AND MAINTENANCE

In This Part—

• Introduction

• Daily cleaning schedules

• Deliming procedure

• Preventive maintenance schedules

• Lubrication


Cleaning your machine is the best maintenance that you can provide. Components that are not regularly flushed and cleaned do not perform well.

The following schedules are the minimum requirements necessary for the proper performance of your machine. Intervals should be shortened whenever your machine is faced with abnormal working conditions, hard water, or multiple shift operations.

4.2 Daily Cleaning Schedules

Every 2 hours of operation and after each meal period

1. Drain the dishwasher.

2. Clean the round scrap screen and pump intake screen.

3. Check and clean the spray arms.

4. Reassemble the dishwasher.

At the End of the Day

1. Drain the machine.

2. Clean the round scrap screen and pump intake screen.

3. Clean spray arms.

4. Wipe the interior of the machine with a soft damp cloth.

!

CAUTION:

Do not hose down the exterior of the machine with water.

5. Thoroughly clean the exterior of machine with mild soap solution.

6. Reassemble the machine.

7. Leave door open to aid in drying the interior of the dishwasher.

39


4.3 Deliming Schedules (All Models)

Your dishwasher should be delimed regularly depending on the mineral content of your water. Inspect the machine interior for mineral deposits (white residue) and use a deliming solution for the best cleaning results.

WARNING:

Deliming solutions 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.

WARNING:

Consult your chemical supplier for an appropriate deliming solution, usage instructions, protective gear and specific safety procedures.

The following general instructions are provided to assist the operator in deliming the dishwasher. In no case do these instructions supersede the chemical supplier's instructions in the use of a specific deliming product.

4.1.2 Deliming Procedure (All Models)

1. Remove all racks and wares from the dishwasher.

2. Remove chemical pick-up tubes from the containers and place in a catch pan on the floor.

• UH-200B, UH-200, UH-100B, UH-100 may utilize detergent and rinse aid.

• UL-100 utilizes detergent, rinse aid, and sanitizer.

3. Push POWER button to enter auto-shutdown cycle if machine is already on.

4. Push POWER button again to fill machine.

5. Run four (4) automatic cycles to clear chemical from chemical supply tubing.

6. Push POWER button to enter auto-shutdown cycle and drain the machine completely.

7. Push POWER button to fill machine.

8. Open door and add deliming solution (per chemical supplier's instructions) directly in wash tank.

• UH-200B, UH-200 hold 3.6 US gal. [13.6 liters] of water.

• UH-100B, UH-100 hold 1.8 US gal. [6.8 liters] of water.

• UL-100 holds 2.3 US gals. [8.7 liters] of water

9. Close door.

10. Push START button and immediately push EXTENDED WASH button.

11. Run machine in extended wash mode (per chemical supplier's recommended time).

12. Push EXTENDED WASH button to exit extended wash mode.

Machine will complete automatic cycle.

13. Open door and inspect interior for mineral deposits. Repeat steps 3-11 if required.

14. Run four (4) additional cycles to flush all deliming chemicals from machine.

15. Replace chemical pick-up tubes in containers and prime the chemical dispensing system.

16. Deliming is complete.

40


4.4 Preventive Maintenance Schedules

Daily Maintenance Requirements

Perform the following procedures every day.

1. Check the chemical supply containers and replenish as needed.

2. Inspect scrap screens for bent or damaged parts.

3. Check the spray arm bearings and make sure arms turn freely.

Weekly Maintenance Requirements

Perform the following procedures every week.

1. Inspect for leaks including all piping and supply connections.

Tighten or repair as required.

2. Inspect the door and door gasket for proper fit and ease of operation.

3. Check the operation of the door safety switch.

4. Check the flexible water supply and drain hoses at the rear of machine to ensure they are not kinked.

5. Place chemical pick-up tubes in containers of hot water to flush crystallized chemical from the supply tubing.

Semi-Annual Maintenance Requirements

Perform the following procedures every six months.

1. Inspect all chemical connections and supply tubing for leaks.

2. Check the building drain system and clean as needed.

Yearly Maintenance Requirements

Perform the following procedures every year.

1. Inspect the installation site for cleanliness and any foreign material around the machine.

Clean as required.

2. Check the overall condition of the machine. Replace any worn or damaged parts.

4.5 Lubrication

There are no lubrication points on the dishwasher.

Pump motor bearings are sealed and require no lubrication.

41

Part 5: OPERATOR TROUBLESHOOTING

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42


PART 5: OPERATOR TROUBLESHOOTING


In This Part—

• Troubleshooting basics

• Using the Touchpad/Display to evaluate problems.

• Reading error codes

• Troubleshooting guide

5.2 Troubleshooting Basics

STEP 1:

The first step in troubleshooting your dishwasher is knowing how it works under normal conditions. Review Part 3, Operation, pages 29-36 for a description of proper loading, operator controls and basic operating procedures.

STEP 2:

Check the general condition of your dishwasher.

√

√

Does the dishwasher appear level?

Are the spray arms, and screens clean and in place? Is the door fully closed?

STEP 3:

Some problems may be resolved by double-checking the supply connections to your dishwasher.

Perform the following steps to double-check your dishwasher service connections.

√ Push the POWER button on your dishwasher OFF, then

Turn the main power OFF at the main service disconnect switch or fused circuit breaker.

If your dishwasher has a cord and plug, disconnect the plug and reconnect.

Turn the main power ON and recheck the dishwasher operation.

√

Turn the dishwasher water supply valve OFF and back on again.

√ Check the water temperature supplied to the dishwasher.

Are building water heaters operating correctly?

√ Check the flow of the building drain system.

Are any drains clogged or running slow?

√ Check the chemical dispensing supplies? Are the strainers clean?

Are the pick-up tubes in the correct containers?

Proceed to the next page if the above checks did not resolve the trouble condition.

43


44

PART 5: OPERATOR TROUBLESHOOTING (Cont.)

5.3 Using the Touchpad/Display to evaluate problems

All dishwashers perform a self-diagnostics when you push the POWER button to turn the machine on. Watching the display provides information that will help you and your service agent troubleshoot certain problems.

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

888F 888

TEMPERATURE

Figure 5.3.1

Self-diagnostics Display

(UH-200 Series Shown)

PRESSURE

PRIME

The dishwasher self-diagnostics provide the following information:

1. All LED's illuminate indicating proper operation of the LEDs.

2. Display window(s) flash 888F.

Incorrect temperature readings can be checked by observing the display test to see if all segments are working.

DISPLAY

SEGMENT

DETAIL

ALL SEGMENTS

WORKING

SHOWS THE

NUMBER

"8".

3. Error codes are displayed during self-diagnostics and whenever the component is active during the automatic cycle:

E0F, E1F, E2F and E3F for machines programmed for

°

F.

E0C, E1C, E2C and E3C for machines programmed for

°

C.

(See next page for description of codes).

4. LOF or LOC is observed in the temperature display window.

All models may display "LO" because the temperature display indicates temperature from 115

°F/46°C and above. This is a normal condition during initial fill.

The LOF or LOC display at any other time may be an indication of a temperature problem in the dishwasher and should be investigated before proceeding with warewashing.

NOTE:

For the UL-100 model, a LOF or LOC temperature reading requires that the machine be drained and refilled with fresh water to maintain a minimum wash temperature of 120

°F/49°C. Optimum temperature is 140°F/60°C.

Champion

POWER START

EXTENDED

WASH

LO F

TEMPERATURE

Figure 5.3.2

LO Temperature Displayed


PRIME


5.4 Reading Error Codes

The table below gives the meaning of the error codes and the dishwasher component that is disabled until the condition causing the error code is repaired.

E0F, E1F, E2F and E3F are displayed for machines programmed for

°

F.

E0C, E1C, E2C and E3C are displayed for machines programmed for

°

C.

ERROR CODE

E0F

E0C

E1F

E1C

E2F

E2C

E3F

E3C

MODEL

UH-200B

UH-100B

UH-200

UH-100

UL-100

UH-200B

UH-200

UH-100B

UH-100

UL-100

All Models

UH-200B

UH-200

DESCRIPTION / RESULT

Displayed in temperature display window

• Indicates a defective booster temperature thermistor in the built-in booster.

• Booster heater is disabled.

• Final rinse temperatures will be low.

• Temperature display shows E0.


• Indicates a booster thermistor was not detected.

• These models do not have a built-in booster.

• No effect on machine operation.


• Indicates a bad wash temperature thermistor.

• Wash tank heater is disabled.

• Wash temperatures will be low.




• UL-100 does not have a wash tank heater.



• Indicates a bad rinse temperature thermistor.

• No component is disabled.


Displayed in pressure display window

• Indicates a bad pressure transducer.


• Water pressure display shows E3.

45



5.5 Troubleshooting Guide

Refer to the troubleshooting guide below to help diagnose and resolve a dishwasher problem.

CONDITION

Machine will not start when POWER button is pushed.

Power LED is off.

Low or no water on initial fill or during automatic cycle

Machine will not run when START button is pushed.

Power LED is on.

Machine runs when

START button is pushed but pump motor is not running

CAUSE

Door not closed .....................................

Main switch off .....................................

Machine circuit breaker behind ............

lower front panel is tripped

Door safety switch not closed ...............

Control cabinet pulled out ....................

Push POWER button again ...................

Main water supply is turned off ............

Fill hose (rear of machine) kinked ........

Fill time not set correctly ......................

Low water supply flow pressure ...........

Faulty fill/rinse valve ............................

Clogged line strainer .............................

Faulty water supply valve .....................

Water supply line too small ..................

Door not closed .....................................

Door safety switch not closed ...............

Control cabinet pulled out ....................

Push START button again ....................

Motor thermal overload tripped ............

Defective motor ....................................

SOLUTION

Make sure door is fully closed

Check disconnect at main panel

Check machine power switch

Remove lower front panel and reset breaker at left lower corner of machine.

Check magnet on left side of door

Make sure slide-out control cabinet is fully closed and secured.

Machine starts, if NOT, contact service agent

Turn on main water supply

Make sure hose has smooth bends

UH-100B, UH-100, UL-100 Only,

Contact service agent

Increase flowing pressure

20-22 PSI [138-151kPa] for UH-200B, UH-200

25-95 PSI [156-656 kPa] for

UH-100B, UH-100, UL-100


Clean strainer screen/replace strainer

Replace water supply valve

Increase water supply line to 3/4" I.D.

Make sure door is fully closed

Check magnet on left side of door

Make sure slide-out control cabinet is fully closed and secured.

Machine starts, if NOT, contact service agent

Remove round scrap screen and check sump and pump strainer, clear possible obstruction and wait 10 mins. for overload to reset


46


CONDITION

Machine washes constantly

Wash water temperature is low

CAUSE

EXTENDED WASH button .................

was pushed. Extended wash LED on.

Defective control circuit .......................

Incoming water temperature .................

at machine too low

SOLUTION

Push EXTENDED WASH button

Extended wash LED goes out

Machine completes cycle.


Raise incoming temperature to:

140 °F/60°C for UH-200B, UH-100B

40 °F/22°C rise boosters

110 °F/43°C for UH-200B, UH-100B

70 °F/39°C rise boosters

180 °F/82°C for UH-200, UH-100

140 °F/60°C for UL-100 and (Drain and refill water for UL-100)

Check error codes, Section 5.3 and

5.4 and contact service agent


Clean and/or delime machine


Defective wash temperature probe .......

Insufficient pumped spray pressure

Defective or tripped wash tank .............

high limit

Wash tank heater has lime build-up .....

Defective wash tank heater ...................

(Except UL-100)

Clogged pump intake screen .................

Clogged spray arms ..............................

Scrap screen full of debris ....................

Low water level in tank ........................

Defective pump seal ..............................

Worn spray arm bearings ......................

Drain valve clogged or defective ..........

Insufficient final rinse or no final rinse

(UH-200B, UH-200)

Faulty pressure reducing valve (PRV) ..

Improper setting on PRV ......................

Clogged rinse nozzle and/or arm ..........

Clogged line strainer .............................

Defective fill/rinse solenoid valve ........

Fill hose (rear of machine) is kinked ....


Insufficient final rinse or no final rinse

(UH-100B, UH-100, UL-100)

Insufficient water supply pressure ........

Clogged wash nozzles or spray arm .....

Clogged screen in fill/rinse valve .........

Defective fill/rinse solenoid valve ........

Fill hose (rear of machine) is kinked ....

Clogged pump intake screen .................

Scrap screen full of debris ....................

Low water level in tank ........................

Defective pump seal ..............................

Worn spray arm bearings ......................


Clean pump intake screen

Clean spray arms

Must be kept clean and in place

Check water level


Replace bearings


Replace PRV

Correct flowing pressure setting is

20-22 PSI [138-151 kPa]

Clean nozzles and/or spray arm

Clean screen or replace line strainer




Increase supply pressure at machine

Correct supply pressure must maintain minimum flowing pressure

25 PSI [151 kPa]

Clean nozzles and/or spray arm

Clean screen



Clean pump intake screen

Must be kept clean and in place

Check water level


Replace bearings


47



5.5 Troubleshooting Guide (Cont.)

CONDITION

Final rinse water temperature is low

CAUSE SOLUTION

Incoming water temperature .................

at machine too low

Raise incoming temperature to:

140

°F/60°C for UH-200B, UH-100B

40

°F/22°C rise boosters

110

°F/43°C for UH-200B, UH-100B

70

°F/39°C rise boosters

180

°F/82°C for UH-200, UH-100

140

°F/60°C for UL-100 and (Drain and refill water for UL-100)

Check error codes, Section 5.3 and

5.4 and contact service agent

Defective rinse temperature .................

thermistor (All Models)

Defective booster temperature thermistor Check error codes, Section 5.3 and

(UH-200B, UH-100B Only) 5.4 and contact service agent

Defective or tripped high limit .............

on booster (UH-200B, UH-100B Only)


Defective booster tank heater ...............

(UH-200B, UH100B Only)


Poor washing results

Machine won't drain and/or overflows

Low water .............................................

Wash arm clogged ................................

Chemical dispensers .............................

not operating properly

Insufficient detergents ...........................

Crystal specs on dishes .........................

Wash water milky white color ..............

Spots on glasses ....................................

Wash water temperature too low ..........

Improperly scraped dishes ....................

Ware improperly placed in rack ............

Scrap screens full of debris ...................

Wash water not drained completely ......

Drain hose (rear of machine) kinked ....

Drain pump/drain valve clogged ...........

Water level control defective ................

(UH-200B, UH-200 Only)

Fill Setting incorrect .............................

(UH-100B, UH-100, UL-100 Only)

POWER LOSS when machine ON, ......

machine refilled when POWER button was pushed after power loss.

See "Low or no water condition"

Clean

Check and replenish supplies/


Contact detergent supplier

Wrong type of detergent

Too much detergent injected

May require rinse aid dispenser

See condition “Wash water

Temperature is low”

See Section 3.3, page 30

Use proper racks. Do not overload racks

Clean screens

Check drain hose (rear of machine) for kinks. Make sure hose has smooth bends





Turn off water supply.

Push POWER button ON.

Push POWER button OFF to begin auto-shutdown cycle.

When machine shuts off,

Turn water supply on.

Push POWER button to refill.

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Part 6: SERVICE TROUBLESHOOTING

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50


PART 6: SERVICE TROUBLESHOOTING


In This Part—

• Sequence of Operation

• Timing Charts

• Error Codes

• Troubleshooting Guidelines

The instructions contained in Parts 6, 7, 8, and 10 are intended for Champion authorized technicians and should not be used by untrained personnel. Persons not properly trained should not attempt to repair or make adjustments to the dishwasher.

If you require technical assistance, first contact your authorized Champion service agent in your area or :

Champion (USA)

1 (800) 858-4477

Champion National Service Department

Champion (Canada)

1 (800) 263-5798

Please have the model, serial number, voltage and phase of your machine ready when you call.

The following warnings apply to the instructions and procedures contained in Parts 6, 7, 8, and 10.

WARNING:

Machine surfaces become hot during normal operation.

WARNING:


WARNING:

Observe all safety procedures when power is applied to the machine and during troubleshooting.

51


6.2 Operation Sequence and Timing Charts

Sections 6.2.1 through 6.2.3 explain the operation and timing of the dishwasher models.

6.2.1 Operation Sequence (Model UH-200B, UH-200)

Refer to the operation sequence below and the timing chart on the next page.

Upon application of Input power - all outputs are initially de-energized and the display is disabled. Momentary closure of the Power Pushbutton enables the solid state controls, program jumpers are read and the auto-fill sequence is initiated.

The Fill/Rinse Valve opens until the water level reaches the middle sensor of the Water Level

Probe . The Detergent Pump is cycled three times during the initial fill.

The Wash Tank Heater (All Models), which was locked out during the initial fill, begins to heat.

The Booster, which was locked out during the initial fill, begins to heat (UH-200B Only).

If the Cycle Start Pushbutton is pressed during the fill, the Cycle LED illuminates.

The Wash Cycle starts after the fill is complete.

Pressing the Cycle Start Pushbutton activates the Cycle LED and initiates the Wash Cycle.

The Wash Pump Motor is activated for 60 seconds. The Detergent Pump is activated for

1 to a maiximum of 30 seconds. The detergent pump is locked out after the fill valve closes.

The Drain Valve and Drain Pump are then activated until the water level reaches the bottom sensor on the Water Level Probe .

The Rinse LED illuminates and the Fill/Rinse Valve opens until the water level reaches the middle sensor of the Water Level Probe and 11 seconds has expired.

The Rinse Aid Pump is activated for 1 to 11 seconds during the last 11 seconds of the final rinse.

The Cycle LED is deactivated. The 90-second cycle is complete.

If the Cycle Pushbutton is not activated for (4) hours, the machine goes into the auto-shutdown cycle and turns off.

If the Door Safety Switch is opened, all Pumps and Valves are disabled and times are held.

Closing the door re-enables Pumps and Valves and resumes timing from the point door was opened.

If the Power Pushbutton is closed while the machine is running, the Auto-shutdown Cycle is initiated. The Touchpad/Display flashes 888’s. The Drain Valve and Drain Pump are activated for 20 seconds. The Fill/Rinse Valve is activated for 10 seconds. The Drain Valve and Drain

Pump are then reactivated for 60 seconds. Then the machine turns off.

Closure of the Extended Wash Pushbutton during the Wash Cycle activates the Extended

Wash LED and extends the wash beyond normal wash time until the Extended Wash Pushbutton is re-closed, de-activating the Extended Wash LED.

The Chemical Pump Prime Switch is enabled any time the Temperature Display is active.

The Water Level Probe is ignored during the wash cycle.

If the water level reaches the topmost sensor (overfill condition) of the Water Level Probe , then, the Drain Valve/Drain Pump are activated until the water level drops below the lower sensor of the water level probe.

52


6.2.1 Timing Chart (Model UH-200B, UH-200)

Fixed Time

Adjustable Time

FILL CYCLE

Dishwasher fills until water level reaches middle probe of water level probe assy

(Flow pressure must be Min./Max.:

20-22 PSI [138-151 kPa])

0 10 20 30 40 50

Fill/Rinse Valve

WASH CYCLE

60 sec.

0 10 20 30 40 50 60 70 80 90

Wash Pump

Note 1: Machine drains until water level drops below the bottom (LOW) water level sensor probe

Note 1

0 10 20 30 40 50 60 70 80 90

Drain Valve/Drain Pump

Note 2: Final Rinse for 11 secs. after water level drops below the bottom (LOW) water level sensor probe

11 sec.

Note 2

0 10 20 30 40 50 60 70 80 90

Fill/Rinse Valve

Note 3: Solid state timer control prevents detergent pump from running longer than time required to fill/refill wash tank.

0 10 20 30 40 50 60 70 80 90

Detergent Pump

Note 4: Solid state timer control prevents the rinse aid pump from running after the fill/rinse valve closes.

0 10 20 30 40 50 60 70 80 90

Rinse aid Pump

AUTO-SHUTDOWN CYCLE

20 sec.

60 sec.

0 10 20 30 40 50 60 70 80 90


10 sec.

0 10 20 30 40 50 60 70 80 90

Rinse/Fill Valve

Figure 6.2.1

Timing Chart (UH-200B, UH-200)

53


6.2 Operation Sequence and Timing Charts (Cont.)

6.2.2 Operation Sequence (Model UH-100B, UH-100)



The Fill/Rinse Valve activates for a user defined 2 to 40 seconds.

Extending the fill time past 20 seconds lengthens the total cycle time.

The Wash Tank Heater (All Models), which was locked out during the initial fill, begins to heat.

The Booster, which was locked out during the initial fill, begins to heat (UH-100B Only).



Pressing the Cycle Start Pushbutton activates the Cycle LED and initiates the Wash Cycle. The

Wash Pump Motor is activated for 60 seconds. The Detergent Pump is activated for 1 to a maximum of

30 seconds. The detergent pump is locked out after the fill time has elapsed.

The Drain Valve and Drain Pump are then activated for 20 seconds.

The Fill/Rinse Valve is activated for 2 to 40 seconds. At 6 seconds before completion of the Fill , the

Wash Pump is activated for 3 seconds to remove air from the pump.

The Rinse Aid Pump runs for 1 to 30 seconds during the last seconds that the fill valve is open.

The Wash Pump recirculates the final rinse water for a fixed time of 14 seconds. The Wash Pump stops and the final rinse water is retained for the next wash cycle.

The Cycle LED is deactivated.

If the Cycle Start Pushbutton is not activated for (4) hours, the machine automatically enters the

Auto-shutdown Cycle and turns off.

If the Door Safety Switch is opened, all Pumps and Valves are disabled and times are held. Closing the door re-enables Pumps and Valves and resumes timing from the point door was opened.

If the Power Pushbutton is closed while the machine is running, the Auto-shutdown Cycle is initiated.

The Touchpad/Display flashes 888’s. The Drain Valve and Drain Pump are activated for 20 seconds.

The Fill/Rinse Valve is activated for a user-defined time. Six seconds before the Fill/Rinse Valve closes, the Wash Pump is activated for 3 seconds to remove air from the pump. The Fill/Rinse Valve closes, and the Wash Pump runs for 10 seconds. The Drain Valve and Drain Pump are then reactivated for 20 seconds. The machine turns off.

Closure of the Extended Wash Pushbutton during the Wash Cycle activates the Extended Wash LED and extends the wash the beyond normal wash time until the Extended Wash Pushbutton is re-closed, de-activating the Extended Wash LED .

The Chemical Pump Prime Switch is enabled any time the Temperature Display is active.

54


6.2.1 Timing Chart (Model UH-100B, UH-100)

FILL CYCLE

Factory set 25 sec.

Fixed Time

Adjustable Time

0 10 20 30 40 50

Fill/Rinse Valve

WASH CYCLE

*NOTE 3

60 sec.

*3 sec.

* 14 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Wash Pump

20 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120


2 to 40 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Fill/Rinse Valve

Note 1: Solid state timer control prevents detergent pump from running longer than time required to fill/refill wash tank.

1 to 30 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Detergent Pump

Note 2: Solid state timer control prevents the rinse aid pump from running after the fill/rinse valve closes.

1 to 30 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Rinse aid Pump

*Note 3:

The wash pump starts

6 seconds before the fill/rinse valve closes. The wash pump runs for 3 seconds to evacuate air from wash pump before the pumped final rinse begins.

AUTO-SHUTDOWN CYCLE

20 sec.

20 sec.

0 10 20 30 40 50 60 70 80


2 to 40 sec.

0 10 20 30 40 50 60 70 80

Fill/Rinse Valve

*NOTE 3

*3 sec.

*

10 sec.

0 10 20 30 40 50 60 70 80

Wash Pump

Figure 6.2.2

Timing Chart (UH-100B, UH-100)

55


6.2 Operation Sequence and Timing Charts (Cont.)

6.2.3 Operation Sequence (Model UL-100)



The Fill/Rinse Valve activates for a user defined 2 to 40 seconds.

Extending the fill time past 30 seconds lengthens the total cycle time.

Model UL-100 does not have a wash tank heater.



Pressing the Cycle Start Pushbutton activates the Cycle LED and initiates the Wash Cycle. The

Wash Pump Motor is activated for 80 seconds and the Detergent Pump is activated for 1 to a maximum of 30 seconds. The detergent pump is locked out if the fill time has elapsed.

The Drain Valve and Drain Pump are then activated for 30 seconds.

The Fill/Rinse Valve is activated for 2 to 40 seconds. At 6 seconds before completion of the Fill , the

Wash Pump is activated for 3 seconds to remove air from the pump.

The Rinse Aid Pump runs for 1 to 30 seconds during the last seconds that the fill valve is open.

The Sanitizer Pump runs for 1 to 30 seconds during the last seconds that the fill valve is open.

The Wash Pump recirculates the final rinse water for a fixed time of 15 seconds. The Wash Pump stops and the final rinse water is retained for the next wash cycle.

The Cycle LED is deactivated.

If the Cycle Start Pushbutton is not activated for (4) hours, the machine automatically enters the

Auto-shutdown Cycle and turns off.

If the Door Safety Switch is opened, all Pumps and Valves are disabled and times are held. Closing the door re-enables Pumps and Valves and resumes timing from the point door was opened.

If the Power Pushbutton is closed while the machine is running, the Auto-shutdown Cycle is initiated.

The Touchpad/Display flashes 888’s. The Drain Valve and Drain Pump are activated for 20 seconds.

The Fill/Rinse Valve is activated for a user-defined time. Six seconds before the Fill/Rinse Valve closes, the Wash Pump is activated for 3 seconds to remove air from the pump. The Fill/Rinse Valve closes, and the Wash Pump runs for 10 seconds. The Drain Valve and Drain Pump are then reactivated for 30 seconds. The machine turns off.

Closure of the Extended Wash Pushbutton during the Wash Cycle activates the Extended Wash LED and holds the cycle in a continuous wash mode until the Extended Wash Pushbutton is re-closed, de-activating the Extended Wash LED .

The Chemical Pump Prime Switches are enabled any time the Temperature Display is active.

56


6.2.1 Timing Chart (Model UL-100)

Fixed Time

Adjustable Time

FILL CYCLE

Factory set at 30 sec.

0 10 20 30 40 50

Fill/Rinse Valve

WASH CYCLE

80 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Wash Pump

*NOTE 3

*3 sec.

*

120

15 sec.

130 140 150 155

30 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Drain Valve/Pump

120 130 140 150 155

2 to 40 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Fill/Rinse Valve

Note 1:

Solid state timer control prevents detergent pump from running longer than time required to fill/refill wash tank.

1 to 30 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Detergent Pump

Note 2:

Solid state timer control prevents the rinse aid pump and sanitizer pump from running after the fill/rinse valve closes.

1 to 30 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Rinse aid Pump

1 to 30 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Sanitizer Pump

120 130 140 150 155

120 130 140 150 155

120

120

130

130

140

140

150 155

150 155

AUTO-SHUTDOWN CYCLE

20 sec.

30 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Drain Valve/Pump

*Note 3:

The wash pump starts 6 seconds before the fill/rinse valve closes.

The wash pump runs for 3 seconds to evacuate air from wash pump before the pumped final rinse begins.

2 to 40 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Fill/Rinse Valve

*NOTE 3

*3 sec.

*

10 sec.

0 10 20 30 40 50 60 70 80 90 100 110 120

Wash Pump

Figure 6.2.3

Timing Chart (UL-100)

57


PART 6: SERVICE TROUBLESHOOTING (Cont.)

6.3 Error Codes

All dishwashers perform a self-diagnostics when you push the POWER button to turn the machine on. Watching the display provides information that will help you troubleshoot certain problems.

Champion

POWER START

EXTENDED

WASH

WASH

RINSE

888F 888

TEMPERATURE

Self Diagnostics Display

(UH-200 series Shown)

PRESSURE

PRIME

The dishwasher self-diagnostics provide the following information:

1. All LED's illuminate indicating proper operation of the LEDs.

2. Display window(s) flash 888F.

Incorrect temperature readings can be checked by observing the display test to see if all segments are working.

DISPLAY

SEGMENT

DETAIL

ALL SEGMENTS

WORKING

SHOWS THE

NUMBER

"8".

3. Error codes are displayed during self-diagnostics and whenever the component is active during the automatic cycle:

E0F, E1F, E2F and E3F for machines programmed for

°

F.

E0C, E1C, E2C and E3C for machines programmed for

°

C.

(See next page for description of codes).

4. LOF or LOC is observed in the temperature display window.

All models may display "LO" because the temperature display indicates temperature from 115

°F/46°C and above. This is a normal condition during initial fill.

The LOF or LOC display at any other time may be an indication of a temperature problem in the dishwasher and should be investigated before proceeding with warewashing.

NOTE:

For the UL-100 model, a LOF or LOC temperature reading requires that the machine be drained and refilled with fresh water to maintain a minimum wash temperature of 120

°F/49°C. Optimum temperature is 140°F/60°C.

58

Champion

POWER START

EXTENDED

WASH

LO F

TEMPERATURE

LO Temperature Displayed


PRIME


6.3 Error Codes (Cont.)

The table below gives the meaning of the error codes and the dishwasher component that is disabled until the condition causing the error code is repaired.

E0F, E1F, E2F and E3F are displayed for machines programmed for ° F.

E0C, E1C, E2C and E3C are displayed for machines programmed for

°

C.

ERROR CODE

E0F

E0C

E1F

E1C

E2F

E2C

E3F

E3C

MODEL

UH-200B

UH-100B

UH-200

UH-100

UL-100

UH-200B

UH-200

UH-100B

UH-100

UL-100

All Models

UH-200B

UH-200

DESCRIPTION / RESULT


• Indicates a defective booster temperature thermistor in the built-in booster.

• Booster heater is disabled.

• Final rinse temperatures will be low.

• Temperature display shows EO.


• Indicates a booster thermistor was not detected.

• These models do not have a built-in booster.

• No effect on machine operation.



• Wash tank heater is disabled.

• Wash temperatures will be low.




• UL-100 does not have a wash tank heater.



• Indicates a bad rinse temperature thermistor.



Displayed in pressure display window

• Indicates a defective pressure transducer.


• Water pressure display shows E3.

59


6.4 Troubleshooting Guide

The following checklist provides general guidelines for evaluating trouble conditions with the dishwasher. Detailed troubleshooting flow charts are provided in Part 11 at the end of this manual.

STEP 1:

The first step in troubleshooting the dishwasher is knowing how it works under normal conditions. Review Part 3, Operation, pages 29-36, for a description of proper loading, operator controls and basic operating procedures.

STEP 2:

Check the general condition of the dishwasher.

• Does the dishwasher appear level?

• Are the spray arms and screens clean and in place? Is the door fully closed?

STEP 3:

Some problems may be resolved by double-checking the supply connections to your dishwasher.

Perform the following steps to double-check the dishwasher service connections.

• Push the POWER button on the dishwasher OFF, then

Turn the main power OFF at the main service disconnect switch or fused circuit breaker.

If your dishwasher has a cord and plug, disconnect the plug and reconnect.

Turn the main power ON and recheck the dishwasher operation.

• Turn the dishwasher water supply valve OFF and back on again.

Check the flexible water supply hose at the rear of the machine. Is it kinked?

• Check the water temperature supplied to the dishwasher.

Are building water heaters operating correctly?

• Check the flow of the building drain system.

Are any drains clogged or running slow?

Check the flexible drain hose at the rear of the machine. Is it kinked?

• Check the chemical dispensing supplies? Are the strainers clean?

Are the pick-up tubes in the correct containers?

STEP 4:

Refer to Section 6.3, Error Codes, page 58-59. Observe the self-diagnostics display when the dishwasher is first powered up. Many problems can be identified by evaluating the diagnostics.

STEP 5:

Refer to Part 7, Solid State Circuit Board Set-up and Repair, next page. Double-check the jumper settings on the circuit boards and observe if LED’s on the boards indicate an error condition.

60

Part 7: SOLID STATE CIRCUIT BOARDS

PART 7: SOLID STATE CIRCUIT BOARDS


In This Part—

• Control Cabinet Layout and Board Function

• Program Jumper Settings

• Circuit Board LED Description

• Circuit Board Removal and Replacement

• Circuit Board Connector Diagrams

7.2 Control Cabinet Layout and Board Function

Refer to Fig. 7.2.1 below which shows the location and function of the solid state circuit boards.

The solid state circuit boards are located in the top mounted slide-out control cabinet on the dishwasher.

Program jumpers located on the boards enable the functions for different models.

Door

Safety

Switch

A

B

C

Figure 7.2.1

Circuit Board Layout

(All Models)

A

Time Control Board— • Jumpers to set model type, booster, and touchpad control.

• Controls door safety switch input.

• Controls outputs for wash pump, drain, fill/rinse valve.

• Controls outputs for chemical dispensing pumps.

• Controls water level control (UH-200B, UH-200)

B

Temperature/Pressure Display Board— • 120VAC power input point

• Jumpers to set wash tank and booster temperatures.

• Jumpers to set English or Metric display option.

• Controls wash heater and booster heater outputs.

• Controls thermistor inputs.

• Controls pressure sensor input (UH-200B, UH-200).

• LED’s display temperature (All Models).

Temperature and pressure (UH-200B, UH-200 only).

C

Time Select

(Fill/Chemical Dispenser Board)—

• Controls fill time (UH-100B, UH-100, UL-100).

• Controls time settings for chemical dispensing pumps.

61


7.3 Replacement Circuit Board Set-up

Jumpers are provided on the Timing Control and the Temperature/Pressure Display boards to set the program for each machine model (See Fig.7.2.1, page 61, for board locations).

Jumpers are set at the factory for new machines and should not require adjustment.

Whenever a board is replaced in the field, the service technician must set the jumpers on the replacement circuit board to match the dishwasher model being repaired.

7.3.1 Timer Control Board Program Jumper Settings

The Timer Control Board has three program jumper settings.

JB1— Enables the basic cycle time for all models and water level control for UH-200 series.

Marked “FWR: fresh water rinse,” for UH-200B and UH-200 and

“F&D: fill and dump” for UH-100B, UH-100, and UL-100.

JB2— Enables the booster function if the machine is equipped with a built-in booster.

JB3— Enables prime button inputs. Closed for UH-200B, UH-200, UH-100B, and UH-100.

Open for UL-100.

T2

AC

Neutral

T1

Fused

Hot

DOOR

SW.

Transformer WASH

DOOR

SW.

DRAIN

FILL /

RINSE

SANI

MID

LOW

JB3 RINSE AID

JB1 JB2

POWER

DETERGENT

LIM

Jumper No.

JB1

= FWR

= F & D

JB2

= No Booster

= Booster

JB3

= Three Prime Switches

= One Prime Switch

= Jumper Closed

= UH-100B, UH-100,

UL-100

= UH-200B, UH-100B

= UH-200B, UH-200B,

UH-100B, UH-100

= Jumper Open

= UH-200B, UH-200

= UH-200,

UH-100, UL-100

= UL-100

Figure 7.3.1

Timer Control Board Jumpers and LED Status Lights

62


7.3.1 Timer Control Board Program Jumper Settings (Cont.)

WARNING:


To set the jumpers JB1, JB2, and JB3:

Check and set the jumpers before you install a replacement board.

1. Turn power off at the dishwasher and the main power disconnect switch.

2. Open the front door.

3. Remove screws located in each corner of the hood.

4. Pull the slide-out control cabinet out fully.

5. Fold back the protective mylar drip shield.

Jumper

6. Compare the jumper settings on the dishwasher circuit board with the settings shown in Fig.7.3.1, page 62.

7. Using fingers or needle nose pliers, set the jumper as required.

• The jumper encloses both pins when the switch is closed.

• The jumper encloses one pin when the switch is open.

This method prevents losing the jumper.

Closed Open

8. Replace the drip shield, and close the slide-out control cabinet fully to position the door safety switch located in the left hand corner of the control cabinet.

9. Close the dishwasher door, turn power on and check the dishwasher for proper operation.

7.3.2 Timer Control Board LED Status Lights

Refer to Fig. 7.3.1, previous page

The Timer Control Board has 10 red LED status lights that provide operational information.

POWER— Indicates the Timer Control Board is powered on.

WASH— Indicates output voltage to wash pump contactor is enabled.

DRAIN— Indicates output voltage to drain valve and drain pump is enabled.

FILL/

RINSE— Indicates output voltage to fill/rinse valve is enabled.

SANI— Indicates output voltage to sanitizer pump is enabled.

RINSE AID—Indicates output voltage to rinse aid pump is enabled.

DETERGENT—Indicates output voltage to detergent pump is enabled.

LED’s illuminate whether pump is installed or not. SANI indicates for all models but is used for

UL-100 only.

UH-200B, UH-200 Only:

LIM— Indicates water level has reached the topmost sensor of water level probe.

MID—

LOW—

Indicates water level has reached the middle sensor of water level probe.

Indicates water level has reached the bottom sensor of water level probe.

63


7.3 Replacement Circuit Board Set-up (Cont.)

7.3.3 Temperature/Pressure Display Board Program Jumper Settings

The Temperature/Pressure Display Board has seven program jumper settings.

JB7 —Always set OPEN for normal operation. Future models will not have the JB7 jumper.

JB1 —Selects English display (

°F and PSI) or Metric (°C and kPa)

JB2 —These jumpers select the minimum wash tank temperature with a differential of +4

°F/2°C.

JB3 —

JB4 —

JB5 —These jumpers select the minimum booster tank temperature with a differential of +4

°F/2°C.

JB6 —

PRESSURE

SENSOR

CN2

(-) OUT

GND

(+) OUT

VCC

DISP WASH ONLY

JB7

ENG/MET JB1

WASH

TEMP

SET

BOOSTER

TEMP

SET

JB2

JB3

JB4

JB5

JB6

CN5

W/R LED

NEUTRAL HOT

TOTIMING

CONTROL CN1

POWER

WASH

HEAT

BOOST

HEAT

Transformer

FUSED

HOT

64

Jumper No.

JB7 (Factory use Only)

= Normal

= Wash Only

JB1: Display

= English (

°

F and PSI)

= Metric (

°

C and kPa)

= Jumper Closed

= All Models

= Jumper Open

Note:

JB7 will be eliminated on future board versions

Set by factory per end-user's order

Default setting is English.

Figure 7.3.2

Temperature/Pressure Display Board Jumpers and LED Status Lights


7.3.3 Temperature/Pressure Display Board Program Jumper Settings (Cont.)

To set the jumpers JB1-JB7:

Check and set the jumpers before you install a replacement board.

The procedure for setting jumpers are the same as the Timer Control

Board.

Refer to Section 7.3.1, top of page 63, To set jumpers JB1,

JB2, JB3.

Jumper No.

JB4 JB3 JB2

WashTemperature Select

Temperature (+4 ° F/2 ° C)

170

°

F

165 ° F

160

°

F

150

°

F

145

°

F

140

°

F

77

63

60

°

°

°

C

74 ° C

71

°

C

66

°

C

C

C

The Jumper Settings select the MINIMUM temperature.

The control board maintains the temperature between the minimum selected temperature and the minimum temperature + 4 °F / 2°C.

Jumper No.

JB6 JB5

BoosterTemperature Select

Temperature (+4 ° F/2 ° C)

180

°

F

185 ° F

190

°

F

195

°

F

82

91

°

85 ° C

88

°

C

°

C

C

Figure 7.3.2

Temperature/Pressure Display Board Jumpers and LED Status Lights

ATTENTION !!!

Models UH-100B, UH-100, UL-100 Only

W/R LED (CN5) located below JB6 accepts a display cable for UH-200B, UH-200.

Discard the jumper on CN5 when installing a replacement board for UH-200B, UH-200.

Models UH-100B, UH-100, UL-100 do not have a display cable on CN5.

Make sure a three pin jumper is installed on connector CN5 for these models.

If the jumper is missing, the temperature display during final rinse will not switch from the fill chute to the wash tank thermistor when the fill/rinse valve closes during the final rinse.

7.3.4 Temperature/Pressure Display Board LED Status Lights

Refer to Fig. 7.3.2, page 64.

The circuit board has 3 red LED status lights that provide operational information.

POWER— Indicates the Temperature/Pressure Display Board is powered on.

WASH— Indicates output voltage to wash tank heater contactor is enabled.

HEAT

BOOSTER— Indicates output voltage to booster heater contactor is enabled.

HEAT Applicable for models UH-200B, and UH-100B only

65



7.3.5 Time Select (Fill/Chemical Dispenser) Board

The Time Select (Fill/Chemical Dispenser) Board has 4 adjustable potentiometers.

Refer to Fig. 7.2.1, Circuit Board Layout, page 61, for the location of the Time Select Board.

To Timer

Control Bd.

Adjustment Range

FILL:

2 to 40 secs.

2

1

3

4

0

A

5

6

7

8

9

10

Detail

DETERGENT:

1 to 30 secs.

SANITIZER:

1 to 30 secs.

2

1

3

4

0

5

FILL

6

7

10

8

9

2

1

3

4 5

6

7

8

9

2

1

3

4

5

6

7

0 10 0 10

DETERGENT SANITIZER

8

9

2

1

3

4

0

5

RINSE

AID

6

7

10

8

9

RINSE AID:

1 to 30 secs.

Numbers 0-10 around POTS

DO NOT correspond to time settings.

Use numbers for reference only.

Figure 7.3.3

Time Select (Fill/Chemical Dispenser) Board Potentiometers

WARNING:


POTENTIOMETER ADJUSTMENT:






6. Locate the Fill/Chemical Dispenser Board (See Fig. 7.2.1, page 61).

7. Note the position of the potentiometer adjustment screws. Refer to the potentiometer detail in Fig. 7.3.3 above. Each pot has two small dots in one end of the adjustment dial which denotes the pointer on the dial.

(Continued on next page)

66


POTENTIOMETER ADJUSTMENT (continued):

8. After noting the position of the potentiometers, fully close the slide-out control cabinet.

This positions the door safety switch to close when the dishwasher door is closed.

NOTE:

The dishwasher will not operate if the control cabinet is pulled out because the door safety switch will not be aligned with the door safety switch magnet located on the lefthand corner of the machine door.

FILL POTENTIOMETER ADJUSTMENT: (Models UH-100B, UH-100, UL-100 Only)

The UH-200B, and UH-200 model dishwashers do not utilize the fill adjustment.

Fill is controlled by the water level probe on UH-200B and UH-200 models.

9. Turn power on at the main disconnect switch.

10. Push the POWER pushbutton on the touchpad/display. Machine fills automatically.

11. Open door and check water level inside the dishwasher.

• UH-100B, UH-100 water level should be halfway up the sloped angle of the handle of the round scrap screen.

• UL-100 water level should be even with the top of the handle of the round scrap screen.

12. If water level requires adjustment, refer to Section 2.4, Water Connections, pages 8-10, and make sure supply connections meet specifications. Take any corrective action required before making potentiometer adjustment.

13. Push POWER pushbutton to drain machine.

14. Turn off power at main disconnect, pull out control cabinet and turn Fill POT CW in small incremental steps to increase fill time, CCW to decrease fill time.

15. Repeat steps 8-14, making small incremental changes to the setting until the proper water level inside the wash tank is achieved.

!! OH NO !!

THE DISHWASHER HAS OVERFILLED

WHAT DO I DO NOW?

Perform the following if too large an adjustment has been made to the Fill POT and the water level is higher than the top of the handle of the round scrap screen:

16. Turn the water supply off at the water shutoff valve for the dishwasher.

17. Push the POWER pushbutton OFF to drain the machine.

18. Push the POWER pushbutton ON, then immediately push POWER pushbutton OFF to drain the machine again.

19. Turn main power off at the service disconnect switch.

20. Adjust the Fill POT CCW to reduce fill time.

21. Turn water supply on and begin fill adjustment procedure (steps 8-14) again.

67



7.3.5 Time Select (Fill/Chemical Dispenser) Board

POTENTIOMETER ADJUSTMENT (continued):

WARNING:


Refer to Section 2.9, Chemical Connections, pages 16-21, and to Potentiometer Adjustment,

Steps 1-8, pages 66-67, before proceeding with the instructions below.

DETERGENT, RINSE AID, AND SANITIZER POTENTIOMETER ADJUSTMENT:

The UH-200B, UH-200, UH-100B, UH-100 model dishwashers utilize optional detergent and/or rinse aid chemical dispensing pumps.

The UL-100 model comes standard with detergent, rinse aid, and sanitizer pumps.

NOTE:

Chemical adjustments require testing equipment to accurately determine the proper type and concentration of commercial dishwashing chemicals. This is best performed by a qualified chemical supplier.

DETERGENT ADJUSTMENT:

Detergent is injected in the first 30 seconds of the automatic cycle. Turn the Detergent POT CW to increase the pump run time, CCW to decrease the pump run time. The minimum setting for the detergent pump is 1 second. The pump is locked out after the fill/rinse valve closes.

RINSE AID AND SANITIZER ADJUSTMENT:

Only the UL-100 low temperature machine contains rinse aid and sanitizer pumps as standard equipment. Models UH-200B, UH-200, UH-100B, UH-100 may have the optional rinse aid pump installed.

• If you want more rinse aid or sanitizer dispensed during the final rinse, turn the POT adjustment CW. This makes the pump activate earlier in the cycle from the moment the fill/rinse valve closes.

• Turn the POT CCW to make the pump activate less time from the moment the fill/rinse valve closes.

ADJUSTMENT EXPLANATION

Refer to Fig. 7.3.4, next page.

The illustration shows the fill/rinse valve and dispensing pump(s) portion of the automatic cycle for each model. The example given shows one possible setting; the actual setting may vary.

• Notice that the zero reference point for the pump run time setting is the moment that the fill/rinse valve closes.

• Rinse aid and sanitizer pumps never run AFTER the fill/rinse valve closes during the final rinse portion of the automatic cycle.

68


RINSE AID AND SANITIZER ADJUSTMENT:

ADJUSTMENT EXPLANATION (Cont.)

• Therefore, to increase dispenser pump run time, the time adjustment on the POT must activate the pump before the valve closes earlier in the cycle.

• If a POT is set to “0” on the adjustment dial, then the pump will start 1 second before fill/rinse valve closes.

• If a POT is set to “4” on the adjustment dial, then the pump will start 11 seconds before the fill/rinse valve closes.

• For UH-100B, UH-100, and UL-100: The time the fill/rinse valve is open varies!!

Fig. 7.3.4 shows fill/rinse valve time set to the maximum of 40 secs. In reality, most machines will keep the factory setting of 25 seconds, but every installation can be different depending on supply pressure variations. Therefore, the timing chart is a guide. Fig. 7.3.4 shows the fill POT time set for 40 seconds. Consequently, the fill valve opens at 110 seconds and closes at 140 secs into the total cycle. In this example, with the

Dispensing POT set at maximum, the pump would start at 129 seconds into the cycle and shutoff at 140 seconds. The cycle times would be different if the fill POT were set for 25 seconds. Models UH-200B, UH-200 also may have variations in fill time because the water level probe controls initial fill time. But, the time that the fill/rinse valve is open during the final rinse portion of the automatic cycle is fixed at 11 seconds.

UH-200B

UH-200

11 sec. {

0 10 20 30 40 50 60 70 80 90

Fill/Rinse Valve

Example: Set to 11 sec.

0 10 20 30 40 50 60 70 80 90

Rinse aid Pump

UH-100B

UH-100

{

UL-100

2 to 40 sec.

0 10 20 30 40 50 60 70 80 90 100 110

Fill/Rinse Valve

Example: Set to 11 sec.

120 130 140 150 155

0 10 20 30 40 50 60 70 80 90 100 110

Rinse Aid Pump and/or Sanitizer Pump

3

4

5

6

7

120

Example:

Set to 11 sec.

130 140 150 155

1 sec. min.

2

1

8

9

1 sec. min.

0 10

30 sec. max

Fill/rinse valve closes =

Reference point for pump run time

Figure 7.3.4

Rinse Aid and Sanitizer Pump Adjustment

69


7.4 Circuit Board Test Points and Connectors

General Notes:

Sections 7.4.1 through 7.4.3 describe the location of harness connections to the solid state circuit boards. The inputs/outputs to peripheral components are noted on the diagrams where applicable.

WARNING:

Use extreme caution when testing energized electrical circuits.

!

CAUTION:

Do not attempt to test individual solid state components on the circuit boards.

NOTE:

There are no voltage tests required on the circuit board components.

Some components on the board may be damaged by an ohmmeter.

Technicians are only authorized to test the points described in the instructions below.

!! ATTENTION !!

The dishwasher will not operate when the control cabinet is pulled out!!

The magnetic reed door safety switch is not aligned with the door magnet when the control cabinet is pulled out for service. In order to operate the dishwasher, the door safety switch will need to be bypassed temporarily to perform some service checks.

Door safety switch

WARNING:

Make sure door is fully closed before bypassing the door safety switch. Remove bypass when service is complete.

Place a magnet on or adjacent to the door safety switch to operate the switch and perform service checks.

Remove magnet when service checks are complete.

Door safety switch

(Left side of control cabinet)

70


7.4 Circuit Board Test Points and Connectors

Tools:

The following tools are required to perform checks on the circuit boards:

• Standard set of hand tools

• Volt/Ohm meter (VOM) Sensitivity: 20,000 ohms/volt

Special Tools:

The following special tools are recommended:

• Magnet, P/N 111026, door magnet (Available from Champion), or comparable

• Touchpad/Display, P/N 112621 (Available from Champion)

• Jumper wire with miniature alligator clips to check water level probe (Supplied by others)

Connecting the VOM for Voltage Checks:

Refer to the illustration at right and follow the instructions below to make voltage tests on the circuit boards.

1. Molex harness connectors must be plugged-in to the male connector on the board for voltage checks.

2. Input and output AC voltages are approximately 120VAC.

3. Connect one VOM lead to chassis ground.

4. Carefully insert the other VOM lead into the wire end of the connector until it contacts the metal pin in the molex connector.

5. The exposed pins on the male portion of the connector are insulated with a protective coating. Do not attempt to scrape the coating off the pins.

(VOM)

Molex

Harness

Connector

Chassis Ground

Protective Coating

Insulates Pins

Connecting the VOM for Voltage Checks

BEFORE YOU BEGIN TESTING A CIRCUIT:

DON’T FORGET !!

If the dishwasher POWER pushbutton is pressed when the machine is ON, the dishwasher will automatically enter the auto-shutdown mode.

If the main incoming power is interrupted while the dishwasher is powered ON from the

POWER pushbutton, then, after the main incoming power is restored, the dishwasher will auto-fill when the POWER pushbutton is pressed.

Refer to page 67, The Dishwasher Has Overfilled, if you encounter an overfilled condition during test procedures.

Refer to Section 7.3.2, page 63 and Section 7.3.4, page 65, for the description of LED status lights on the solid state circuit boards.

71


7.4 Circuit Board Test Points and Connectors (Cont.)

7.4.1 Timer Control and Time Select (Fill/Chemical Dispenser) Board

Refer to Fig. 7.4.1 and the instructions on page 73.

From

Temperature/Display Board (T1)

(All Models)

Fused Hot

AC Neutral

To Temperature/Pressure

Display Board (CN1)

Pin 1

Common

Low Probe

Middle Probe

Limit Probe

NOTE:

CN3

T2 T1

T4 Pin 1

To Door Switch

To Time Select

(Fill/Chemical Dispenser) Board

CN7

(UH-200B,

UH-200 Only)

T3

CN5

To Touchpad/Display

Status LED's

CN1

Pin 1

CN4

JB1 JB2

JB3

Pin 1

CN2

Pin 1

Pin 10

Pin 9

CN6

To Touchpad/Display

Pushbuttons

Timer Control Board Connector Diagram

Red stripe on cable indicates PIN 1 location.

Pin 1

To CN1 on Timer Control Board

Pin 1

2

1

3

4

0

5

FILL

6

7

8

9

10

2

1

0

3

4 5

6

7

8

9

10

2

1

3

4

0

5

6

7

8

9

10

DETERGENT SANITIZER

2

1

3

4

0

5

RINSE

AID

6

7

8

9

10

Time Select (Fill/Chemical Dispenser) Board

Connector Diagram

AC Hot

Sanitizer Pump

Rinse Aid Pump

Detergent Pump

Figure 7.4.1

Timer Control and Time Select Connector Diagrams

72


7.4.1 Timer Control and Time Select (Fill/Chemical Dispenser) Board

Connector Descriptions

Refer to Fig. 7.4.1 on page 72 and the test point descriptions below.

Timer Control Board Connectors:

CN1 — 10 pin connector accepts the cable from the Time Select Board.

There are no test points on CN1.

CN2 — 8 pin connector accepts the touchpad display cable.

Refer to Section 7.4.3, page 76, for test points.

CN3 — 10 pin connector hard-wired to the circuit board.


CN4 — 4 pin connector accepts the status LED cable from the touchpad/display.


CN5 — 4 pin connector accepts the wiring harness connector.

120VAC test points for:

• Wash pump output

• Fill/Rinse valve

• Drain pump and drain valve



• AC Power input to the Timer Control Board

• Sanitizer pump output

• Rinse aid pump output

• Detergent pump output

CN7 — 4 pin connector accepts the wiring harness connector. (UH-200B, UH-200 only)

Remove harness connector and connect jumper between Common and LOW, MIDDLE, or LIMIT pin on circuit board to to check water level LED’s.

Associated LED should illuminate on board when pins are jumped.

T1,T2— Spade terminals on board.

120VAC test points for power input

• T1 accepts AC Hot harness wire from Temperature/Pressure Display Board

to power water level control transformer (UH-200B, UH-200 Only) and

the wash pump, fill/rinse valve, and drain pump/drain valve (All Models).

• T2 accepts AC neutral harness wire (All models)

T3,T4— Spade terminals on board accept wires from door safety switch.

Time Select (Fill/Chemical Dispenser) Board Connectors:

CN1 — 10 pin cable to the Timer Control Board. Connector hard-wired to board.


73



7.4.2 Temperature/Pressure Display Board


Input Power

Neutral Hot

To Pressure

Transducer

ToTouchpad/Display

(Wash/Rinse LED's)


CN3

CN2

CN4

Pin 9

Pin 10

Pin 1

Pin 1

JB7

JB1

JB2

JB3

JB4

JB5

JB6

Pin 1

CN5

CN1

To Timer Control Board (CN3)

T1 T2

F1

T3

Fused Hot

Fuse

2A 250VAC

To Fused Hot (T1) on Timer Control Board


Pressure Display


Temperature Display

(All Models)

NOTE:

Red stripe on cable indicates PIN 1 location.

Figure 7.4.2

Temperature/Display Board Connector Diagram

74


7.4.2 Temperature/Pressure Display Board

Refer to Fig. 7.4.2 and the instructions on page 75 and the test point descriptions below.

Temperature/Pressure Display Board Connectors:

CN1 — 10 pin connector accepts the cable from the Timer Control Board.


CN2 — 4 pin connector accepts the cable from the pressure transducer

(UH-200B, UH-200 only).



Connector contains inputs from the thermistor probes.

Disconnect the connector from the board and check thermistor wires with VOM set to Ohms. Compare with actual temperature of water.

Thermistor Resistance Chart (Approx. Ohms)

80 ° F/27 ° C =

90 ° F/32 ° C =

100 ° F/38 ° C =

110 ° F/43 ° C =

120 ° F/49 ° C =

130 ° F/55 ° C =

140 ° F/60 ° C =

9,165

7,400

5,775

4,725

3,740

2,985

2,490

150 ° F/66 ° C

160 ° F/71 ° C

170 ° F/77 ° C

180 ° F/82 ° C

190 ° F/88 ° C

200 ° F/93 ° C

210 ° F/99 ° C

=

=

=

=

=

=

=

2,010

1,690

1,385

1,180

975

840

870



• Wash tank heat contactor output

• Booster tank heat contactor output

CN5 — 3 pin connector accepts the W/R LED cable from the touchpad/display on models UH-200B, UH-200 only.

All other models must have a jumper on CN5.


T1,T2— Spade terminals on board.

120VAC test points for power input

• T1 accepts AC Neutral harness wire

• T2 accepts AC Hot harness wire (All models)

T3— Spade terminal on board accepts wire from Fused Hot T1 terminal on Timer Control

(UH-200B, UH-200 only).

120VAC test point for fused hot.

FUSE— 2 amp fuse to protect 120VAC power output to T1 terminal on Timer Control Board.

This power output is used for the water level control transformer located on the

Timer Control Board on models UH-200B, UH-200 only.

75



7.4.3 Touchpad/Display


76

Figure 7.4.3

Touchpad/Display Connector Diagram

Sanitizer Prime (UL-100)


7.4.3 Touchpad/Display

Refer to Fig. 7.4.2 and the instructions on page 76 and the test point descriptions below.

Touchpad Display Connectors:

Status

LED — 4 pin cable connects to CN4 on the Timer Control Board.

Cable LED’s are: Power, Start, and Extended Wash

There are no test points on the cable

Wash/ 3 pin cable connects to CN5 on the Temperature/Pressure Display Board.

Rinse LED’s are: Wash and Rinse (For Models UH-200B, UH-200 only)

LED — There are no test points on the cable.

Cable

Touchpad Pushbutton Cable —

8 pin cable connects to CN2 on the Timer Control Board.

To test the pushbuttons:

1.

Disconnect the cable from CN2 on the timer board.

2.

Gently fold the cable connector back to reveal the contacts on the backside of the connector.

3.

Make sure the cable is oriented to match the detail in Fig. 7.4.3.

4.

Connect the VOM and press the pushbutton to check for continuity.

NOTE:

Fig. 7.4.3 shows the prime pushbuttons for all models. In reality, there are three separate touchpad/display assemblies.

Models UH-200B, UH-200 are the only models with the Wash/Rinse LED cable.

These models have one prime pushbutton which operates both optional detergent and rinse aid pumps simultaneously.

Models UH-100B, UH-100 have one prime pushbutton which operates both optional detergent and rinse aid pumps simultaneously.

Model UL-100 has three prime pushbuttons which operate the standard detergent, sanitizer, and rinse aid pumps separately.

NOTE:

There are NO hidden pushbuttons on the touchpad/display.

77


7.5 Circuit Board Removal and Replacement

General Notes:

The circuit boards should always be handled with care. Keep the board it its packaging until it is time for installation. Do not place the board on metal surfaces. The boards have a protective coating that resists electrostatic discharge (ESD) but it is good practice to touch a metal surface with your hand to discharge any static built up on your body before handling a board. Handle the circuit board by its edges whenever possible. Take care when using tools near the board.

WARNING:


!

CAUTION:

Discharge static build-up on your body by touching a metal surface before handling a circuit board to protect the board from electrostatic discharge (ESD).

NOTE:

Program jumpers should be checked and set to match the model and function of the dishwasher being repaired before the board is installed. Refer to Section 7.3, pages 62-65.

7.5.1 Timer Control Board Removal

Refer to the pictures and instructions given below.

To remove the timer control board:

Check and set the program jumpers before you install a replacement board.






6. Note location, then carefully disconnect display cables and connectors.

7. Remove 6-32 grip nuts retaining the board.

8. Lift the board up and off the mounting studs.

9. Replace the board in reverse order.

NOTE:

Plug-ins on circuit boards are marked with a number “1”. This marking corresponds with a red line on the connector cable.

Make sure the “1” and the red line match when reconnecting a cable to the circuit board.

Match No. 1 on plug to red line on cable

78


7.5.1 Timer Control Board Removal (Cont.)

Disconnect touchpad/display cables

Disconnect interconnect cables

Observe caution when using tools near circuit board

Remove 6-32 retaining nuts

Handle the circuit board by its edges.

79


7.5 Circuit Board Removal and Replacement (Cont.)

Refer to the General Notes on page 70 before proceeding with the instructions below.

WARNING:


7.5.2 Temperature/Pressure Display Board Removal


To remove the Temperature/Pressure Display Board:

Check and set the program jumpers before you install a replacement board.






6. Note location, then carefully disconnect display cables and connectors.

7. Remove 6-32 grip nuts retaining the board.

8. Lift the board up at the rear at a slight angle and off the rear mounting studs.

9. Carefully lift the front of the board off the studs and guide the board back and out until the LED’s clear the control cabinet.

10. Replace the board in reverse order.

11. Make sure the display LED’s are centered in the control cabinet windows.

NOTE:




80


7.5.2 Temperature/Pressure Display Board Removal (Cont.)

Remove 6-32 retaining nuts

Observe caution when using tools near circuit board

Handle the circuit board by its edges.

When reinstalling the board, make sure the LED’s are centered in the control cabinet windows.

81




WARNING:


7.5.3 Touchpad/Display Removal and Replacement


Special Tools Required:

• Sharp knife

• Acetone based cleaning fluid

• Scotch Brand® (or comparable) transparent tape

To remove the Touchpad/Display:






6. Note location, then carefully disconnect display cables on the timer control board.

The UH-200B, UH-200 has an additional cable connection on the temperature/pressure display board.

7. Use a sharp knife to separate the touchpad/display from the front of the control cabinet.

8. Scrape excess adhesive from the control cabinet face, then use a soft rag and an acetone based solvent to remove any remaining adhesive.

AVOID GETTING ACETONE ON THE DISPLAY PLASTIC.

To replace the Touchpad/Display:

1. Remove the touchpad/display from its packaging.

2. Notice the protective film on the red display windows.

3. Apply a small piece of tape on one corner of the protective film.

Lift the tape off quickly to pull the film off the red display window.

4. Peel the protective film off completely.

5. Carefully thread the display cables through the holes in the control cabinet.

6. Place the touchpad/display on top of the cabinet, adhesive backing facing up.

7. Remove the adhesive backing and carefully apply the display to the cabinet.

8. Go slowly, the adhesive is very strong and will adhere on contact.

9. Make sure the red windows are centered on the LED cutouts and apply even pressure on the touchpad/display to complete the installation.

82


7.4.3 Touchpad/Display Removal and Replacement (Cont.)

TEMPERATURE

Apply small piece of tape to corner of protective film and quickly remove tape

TEMPERATURE

Pull protective film off display window

Disconnect display cables

Separate touchpad/display from control cabinet

(Continued next page)

83



7.5.3 Touchpad/Display Removal and Replacement (Cont.)

Scrape off adhesive with knife and remove remaining adhesive with acetone based solvent

AVOID GETTING ACETONE ON THE

DISPLAY!

Carefully thread display cables through holes in control cabinet front

Lay touchpad/display on top of control cabinet: adhesive side up.

Remove adhesive backing

84

Carefully align touchpad/display and apply to control cabinet front




WARNING:


7.5.4 Time Select (Fill/Chemical Dispenser) Board Removal and Replacement


To remove the Fill/Chemical Dispenser board:

Check the POT settings on the defective board. Turn the POTS on the replacement board to match before installing the new board.






6. Note location, then carefully disconnect the dispenser cable from the timer control board.

7. Remove the 6-32 retaining nuts.

8. Lift the board up and off the retaining studs.

9. Reinstall the replacement board in reverse order.

NOTE:




Set POTS on replacement board to match old board before installing the replacement.

2

1

3

4

0

5

FILL

6

7

8

9

2

1

3

4

10 0

5

6

7

8

9

2

1

3

4

10 0

5

6

7

8

9

2

1

3

4

10

DETERGENT SANITIZER

0

5

RINSE

AID

6

7

8

9

10

85

Part 8: COMPONENT REPAIR AND REPLACEMENT

This Page

Intentionally

Left

Blank

86


PART 8: COMPONENT REPAIR AND

REPLACEMENT


In This Part—

• Special Tools and Materials

• Electrical Component Locator Diagram

• Troubleshooting the 10-point Terminal Board

• Component Repair and Replacement Procedures

The instructions contained in Part 8 are intended for Champion authorized technicians and should not be used by untrained personnel. Persons not properly trained should not attempt to repair or make adjustments to the dishwasher. The instructions do not cover every possible trouble condition or repair procedure. The Champion authorized service technician should rely on experience, factory seminars and consultation with the Champion National Service

Department for conditions not covered in this manual

The following warnings apply to the procedures contained in Part 8.

WARNING:

Machine surfaces are hot during and after normal operation.

WARNING:


WARNING:

Use extreme caution when testing circuits while power is applied to the machine.

8.1.1 Special Tools and Materials

Tools:

Metric fasteners are used in the wash pump assembly and the wash arm supports.

• Standard set of metric tools

Materials:

The following solvents, sealants, and pipe compounds are required for repairs.

• Pipe sealant (Loctite® 565 or comparable) Champion P/N 106437

• Silicon sealant (732 RTV or comparable) Champion P/N 104827

• Thread sealing teflon tape, Champion P/N 106436

• Plumber’s putty (Compound 440 or comparable) Champion P/N 104889

• Heat Sink Compound (used on high limit thermostat) Champion P/N 110563

87


88

8.1 Introduction (Cont.)

8.1.2 Electrical Component Locator Diagram

The combined illustration below shows the major electrical components (except chemical pumps) for models UH-200B, UH-200, UH-100B, UH-100, and UL-100 dishwashers.

Pressure

Transducer

(UH-200 series)

Final Rinse Thermistor

(UH-200 series)

Final Rinse Manifold

(UH-200 series)

Door Safety

Magnetic

Reed Switch

Vacuum

Breaker

(UH-200 series)

Fill Chute

(UH-100 series

& UL-100)

Wash Tank

Heater Element

(except UL-100)

Drain

Pump

Wash

Pump

Final Rinse

Thermistor

(UH-100 series)

Water Level Probe

(UH-200 series)

Booster

Tank

Hi limit

Booster

Tank

(UH-200B

UH-100B)

Booster

Tank

Thermistor

Wash Tank

Hi limit

Wash Tank

Thermistor

Drain

Valve

Fill/Rinse

Solenoid Valve

Wash Pump

Contactor

Main

Power

Terminal

Block

Wash Tank

Heater

Contactor

SIGN

AL O

DETE

120V

RGE

NT

RINS

E AID

COM

MON

R

10 Point

Terminal

Block

Booster

Tank Heater

Contactor

Installation/Service Switch

(UH-200B, UH-100B)

Circuit Breaker

Figure 8.1.1

Electrical Component Locator Diagram


8.1.2 Electrical Component Locator Diagram

Component Descriptions

Wash pump: Mounted right side of base.

Drain pump/

Drain valve:

Mounted rear of base.

Drain pump works simultaneously with drain valve to pump water out of the dishwasher

Wash pump contactor:

Mounted on bracket right front of base.

120VAC from timer control board energizes contactor coil.

Wash tank Mounted on bracket right front of base.

heat contactor: 120VAC from temperature/display board energizes contactor coil.

Main power Mounted on bracket right front of base.

terminal block: Main incoming power connection point.

10 point Mounted on bracket right front of base.

terminal block: Connection point between control cabinet to lower components.

Booster tank Mounted on bracket upper front of base.

heat contactor: 120VAC from temperature/display board energizes contactor coil.

Installation/ Mounted on bracket upper left side of base.

service switch: Fills booster on initial start-up. (UH-200B, UH-100B only)

Circuit breaker:

Booster tank:

High limit thermostat:

Thermistor:

Water level probe:

Pressure transducer:

Wash tank heater:

Door safety switch:

Mounted on bracket upper left side of base.

8 amp manual reset breaker protects 120VAC control circuit.

Mounted left side of base.

Heats final rinse water. (UH-200B, UH-100B only)

One mounted on top of booster. One mounted on side of wash tank.

Manual reset. Trips if temperature exceeds 210

°

F/99

°

C.

Senses temperature and provides an input to temperature/display bd.

• Wash tank thermistor provides a thermometer input to the temperature display and provides thermostatic input for wash tank heat control.

• Booster tank thermistor provides thermostatic input for booster tank heat control on the temperature/display bd.

• Final rinse thermistor provides a thermometer input to the temperature display. Thermistor is located in the final rinse manifold for UH-200B, UH-200 and the fill chute for all other models.

Mounted left side of tank assembly.

Senses water level for timer control bd. input (UH-200B, UH-200 only).

Mounted left rear top corner of tank assembly in final rinse manifold.

Senses water pressure during final rinse and provides display input to temperature/display bd. (UH-200B, UH-200 only).

Mounted in bottom of wash tank sump. (All except model UL-100).

Maintains wash tank water temperature at a minimum of 150

°

F/60

°

C.

Mounted left front corner of slide-out control cabinet.

Prevents machine operation if door open or control cabinet pulled out.

89


8.1 Introduction (Cont.)

8.1.3 Troubleshooting the 10-point Terminal Board

The 10-point terminal board is mounted on a bracket located in the right front corner of the machine base. The terminal board provides easy access for making voltage checks to most of the electrical components mounted on the base of the machine.

Voltages are measured between a numbered wire and common (#2).

All voltages are control voltage and should read approximately 120VAC.

120VAC should be present at the terminal if the associated LED on the board is illuminated.

For example:

If the Drain LED is illuminated on the Timer Control Board, then 120VAC should be present between Wire #54 and Wire #2.

Not connected

From Temperature/Display Bd.

From Temperature/Display Bd.

From Timer Control Bd.




Common

4

26

2

2

2

6

54

24

25

2

2

2

4

6

54

24

Not connected

To booster contactor coil (HC2)

(UH-200B, UH-100B Only)

To wash tank heat contactor coil

(All except UL-100)

To drain pump/drain valve

(All models)

To detergent pump (if equipped)

25

To rinse aid pump (if equipped)

26

To sanitizer pump (if equipped)

Common

Figure 8.1.2

10-Point Terminal Board

90


8.1.3 Troubleshooting the 10-point Terminal Board (Cont.)

Troubleshooting Procedure:

The following procedure is suggested as a method for troubleshooting a trouble condition.

1. Identify the problem condition by observing machine operation.

(Refer to Section 6.4, page 60, and the Troubleshooting Flow Charts in back of manual.)

2. Turn POWER pushbutton off and back on to enter self diagnostics.

3. Check for error codes. (Refer to Section 6.3, page 68.)

4. Open the slide-out control cabinet.

5. Make sure door is fully closed, then place a magnet on the door safety switch.

6. Observe LED’s on the boards. (Refer to Part 7, pages 61-65.)

7. Check for proper voltages on the components or the 10-point terminal board.

8. Check for defective high limits, contactors etc.

9. Check for proper voltage outputs at the circuit board connectors.

(Refer to Section 7.4, pages 71-77.)

10. Replace the defective component and check machine operation.

(Refer to Section 7.5, page 78; Part 8, page 92; and Section 6.2, pages 52-57.)

Components not connected via the 10-point terminal board:

The following components are wired directly from the Timer Control Board in the control cabinet to the base via the wiring harness:

• Wash pump contactor: Wire #20

• Fill/Rinse valve Wire #23

The thermistors also are wired directly from the temperature/display board in the control cabinet to their respective locations:

• Wash tank thermistor: Wires #9 and #10

• Booster tank thermistor Wires #11 and #12

• Final rinse thermistor Wires #7 and #8

91


PART 8: COMPONENT REPAIR AND REPLACEMENT (Cont.)

8.2 Components

This section provides photos, illustrations and basic instruction for the removal and replacement of the main components of the dishwasher. It does not cover all components such as the wash arm supports, hoses or panels. These repairs require simple observation and basic mechanical skill and therefore are not included in this manual.

Chemical dispensing pump installation is covered in Section 2.10, Installing Optional Chemical Pumps, pages

22-26.

WARNING:

Machine surfaces are hot during and after normal operation.

WARNING:


WARNING:

Use extreme caution when testing circuits while power is applied to the machine.

8.2.1 Pressure Reducing Valve (PRV) Adjustment

UH-200B, UH-200 Only

A 3/4" PRV is required if the incoming water supply exceeds 20-22 PSI/138-151 kPa flowing pressure.

The PRV should be installed in the incoming water supply line before the machine connection.

To adjust the PRV:

1. Loosen the locknut on the adjusting screw in the top of the PRV.

2. Turn the adjusting screw CW to increase the flowing pressure to the machine.

3. Turn the adjusting screw CCW to reduce the flowing pressure to the machine.

4. Observe the pressure reading on the control panel to confirm the proper setting of

20-22 PSI/138-151 kPa during the final rinse.

5. Tighten the locknut on the adjusting screw.

6. If the proper pressure cannot be achieved then check the water pressure before the

PRV, it may be too low, or replace the PRV.

Adjusting screw

Locknut

92


8.2.2 Water Line Strainer

A 3/4" line strainer was shipped unmounted with the UH-200B, UH-200 dishwasher.

The line strainer should be installed in the incoming water supply line before the machine.

The line strainer has a removable screen that should be cleaned at least once a year.

UH-200B, UH-200

To clean the line strainer:

1. Turn the main water supply to the machine off.

2. Push the POWER pushbutton off, if machine is ON, to enter auto-shutdown.

Otherwise, turn machine on then off.

This will bleed pressure off water line.

3. Remove the retaining nut from the line strainer and extract the screen.

4. Flush the screen with water. If screen is damaged, replace the line strainer.

5. Reassemble in reverse order.

Retaining nut

Line Strainer

UH-200B, UH-200

Screen

UH-100B, UH-100, UL-100

The water line strainer for the UH-100B, UH-100, UL-100 is built-in to the valve.

Refer to Section 8.2.3, Fill/Rinse Water Solenoid Valve, page 95, for instructions on valve repair.

8.2.3 Fill/Rinse Water Solenoid Valve

UH-200B, UH-200

The 1/2" water solenoid valve is both a fill valve when the machine is turned on and a final rinse valve during the final rinse. The valve coil is 120VAC. A repair kit is available to rebuild the internal parts of the assembly.

To remove the valve assembly:





3. Remove the lower front panel from the dishwasher. The valve assembly is located on the left front side.

4. Disconnect valve discharge hose.

5. Remove (2) valve bracket retaining bolts.

6. Pull valve assembly forward and out of the dishwasher.

Pull assembly forward and out

Remove bracket retaining bolts

(continued next page)

93


8.2.3 Fill/Rinse Water Solenoid Valve (Cont.)

UH-200B, UH-200

To remove the valve assembly (Cont.):

7. Remove the coil assembly.

8. Remove the valve bonnet using strap wrench or pipe wrench.

9. Inspect valve body. If pitted, replace entire valve assembly. Otherwise, install repair kit.


11. Restore water and power and check for leaks.

120VAC coil

Repair kit

94

Valve disassembled

UH-200B, UH-200

Remove coil Remove bonnet

UH-100B, UH-100, UL-100

The 3/8" water solenoid valve is both a fill valve when the machine is turned on and a final rinse valve during the final rinse. The valve coil is 120VAC. A repair kit is available to rebuild the internal parts of the assembly. In addition, the valve contains a flow restrictor in the outlet of the valve and a built-in strainer.

To remove the valve assembly:





3. Remove the lower front panel from the dishwasher. The valve assembly is located on the left front side.

4. Disconnect valve discharge hose.

5. Remove (2) valve bracket retaining bolts.

(Continued next page)

Fill/Rinse Valve Assembly

(UH-100B shown)


Fill/Rinse Water Solenoid Valve (Cont.)

UH-100B, UH-100, UL-100

To remove the valve assembly (Cont.):

6. Pull valve assembly forward and out of the dishwasher.

7. Remove the coil wires.

8. Remove three retaining screws in the bonnet and lift the coil and bonnet off the body.

9. Inspect valve body. If pitted, replace entire valve assembly. Otherwise, install repair kit.

10. Remove the retaining nut and extract the line strainer screen.

11. Flush clean with water. If damaged, replace screen.

Flow Washer—

Over time the flow washer may swell and reduce the water passing through the valve.

If you encounter a low fill condition in the dishwasher, and incoming supply pressure appears normal, then replace the flow washer located in the inlet side of the valve.

12. Reassemble valve in reverse order.

13. Restore water and power and check for leaks.

120VAC coil

Bonnet

Flow

Washer Repair kit

Line strainer screen

Valve disassembled

UH-100B, UH-100, UL-100

8.2.4 Water Level Probe

UH-200B, UH-200

The water level probe mounts to the left rear corner of the dishwasher. It is nearly indestructible but may require periodic inspection and cleaning to ensure the metal probes are free of lime build-up.

To clean the probe:

1. Push the POWER pushbutton off.

Turn off main incoming power to the dishwasher.

2. Gently clean the probes with a non-ferrous scrub pad such as a scotch-brite pad.

3. Restore power to the machine and check for proper operation.

REAR

Water Level Probe

Inside Tank

View

LEFT

SIDE

UH-200B, UH-200 Only

LIMIT

MIDDLE

LOW

95


8.2.5 Vacuum Breaker

UH-200B, UH-200

The 1/2" vacuum breaker is located at the top left rear corner of the dishwasher. It prevents siphoning of water from the dishwasher back into the potable water supply. The vacuum breaker contains a replaceable float assembly.

!

CAUTION:

The vacuum breaker is connected to the plastic final rinse manifold.

Use extreme caution when servicing the breaker to prevent damage to final rinse manifold.

To service the vacuum breaker:



3. Turn off main incoming power.

4. Pull machine out if necessary.

5. Remove top and side panels.

6. Remove retaining screw in vacuum breaker cap. Remove cap.

7. SUPPORT THE BREAKER TO

PREVENT DAMAGE TO THE

PLASTIC MANIFOLD.

8. Remove the vacuum breaker top with a wrench turning CCW.

9. Remove the float assembly with a pair of needle nose pliers.

10. Inspect the bore of the vacuum breaker.

If pitted, replace the entire vacuum breaker.

Otherwise, install a repair kit.


12. Restore power and water, and check for proper operation.

13. Reinstall top and side panels.

14. Return machine to permanent location ensuring machine is level.

15. Check supply hoses at rear of machine to ensure they are not kinked.

96


8.2.6 Pressure Transducer

UH-200B, UH-200

The pressure transducer is located at the top left rear corner of the dishwasher. It is mounted in final rinse manifold and connected by a cable to the Temperature/Pressure Display Board located in the slide-out control cabinet (See Fig. 7.4.2, page 74).

The pressure transducer senses water pressure in the final rinse manifold during the final rinse cycle. It sends a signal to the Temperature/Pressure Display Board. The pressure is displayed in pressure window on the touchpad/display.

!

NOTE:

There are no test points on the transducer, nor the circuit board. If the pressure reading displayed is incorrect, then check that the incoming water supply flowing pressure is (20-22 PSI /138-151 kPa). If flowing pressure checks OK, then replace the pressure transducer.

CAUTION:

The pressure transducer pins are delicate. Use caution when handling to avoid bending or breaking the pins.

Pressure

Transducer

Cable

To temperature/ pressure display bd.

in control cabinet

Pressure

Transducer

O-ring

(not included with transducer)

Pin1

Red stripe indicates Pin1

!! ATTENTION !!

Transducer must be installed so

Pins point as shown

Final Rinse

Manifold

Pressure Transducer

UH-200B, UH-200 ONLY

To replace the pressure transducer:





5. Remove top and side panels.

6. Note the red line on the transducer cable and disconnect.

(continued next page)

97


8.2.6 Pressure Transducer UH-200B, UH-200 (Cont.)


Pressure

Transducer

Cable


in control cabinet

Pressure

Transducer

O-ring

(not included with transducer)

Pin1

Red stripe indicates Pin1

!! ATTENTION !!

Transducer must be installed so

Pins point as shown

Final Rinse

Manifold

Pressure Transducer

UH-200B, UH-200 ONLY

7. Remove the transducer turning CCW out of the manifold.

!

CAUTION:

The transducer requires an O-ring.

Save the O-ring from the old part if you do not have a replacement O-ring.

O-ring P/N 112731.

8. INSPECT THE REPLACEMENT

TRANSDUCER.

The transducer pins should measure approximately 7/16" [11mm] from base to tip.

9. If required, carefully cut one pin at a time using the sharpest side cutters available to 7/16" [11mm].

10. Install an O-ring on the transducer and screw the transducer into the manifold.

11. Make sure the transducer pins are parallel with the manifold and point away from the vacuum breaker. Connect the cable.

12. Restore power and water, and check for leaks and proper operation.

13. Reinstall top and side panels.



7/16"

11mm

Cut

98


8.2.7 Thermistors

ALL THERMISTORS ARE IDENTICAL.

Refer to Section 8.1.2, page 89, for a description of the thermistor functions.

To check the thermistor:

1. Verify the temperature of the water with a calibrated test instrument.

2. Refer to Section 7.4.2, page 74-75,

Connector CN3 on the Temperature/

Pressure Display Board provides the test points for checking the thermistor temperature output.

Thermistor Resistance Chart (Approx. Ohms)

80 ° F/27 ° C =

90 ° F/32 ° C =

100 ° F/38 ° C =

110 ° F/43 ° C =

120 ° F/49 ° C =

130 ° F/55 ° C =

140 ° F/60 ° C =

9,165

7,400

5,775

4,725

3,740

2,985

2,490

150 ° F/66 ° C

160 ° F/71 ° C

170 ° F/77 ° C

180 ° F/82 ° C

190 ° F/88 ° C

200 ° F/93 ° C

210 ° F/99 ° C

=

=

=

=

=

=

=

2,010

1,690

1,385

1,180

975

840

870

To replace the thermistor:







5. Remove panels as required.

6. Disconnect the molex connector on the thermistor leads.

7. Remove the thermistor.

8. Apply Loctite 565 pipe sealant, or comparable, to the threads of the replacement part.

9. Install in reverse order.

10. Restore power and water, and check for leaks and proper operation.

11. Reinstall panels.



Final rinse manifold

UH-200B, UH-200

Fill chute

UH-100B, UH-100,

UL-100

Booster tank

UH-200B, UH-100B

Wash tank

All models

99


8.2.8 Wash Tank Heater and High Limit Thermostat

(All models except UL-100)

The wash tank heater is mounted in the bottom of the wash tank sump. It maintains the wash tank water temperature at a minimum of

150

°F/60°C. The heater is protected from a low water condition by a surface mounted high limit thermostat. The UL-100 does not have a wash tank heater or high limit thermostat.

Check the high limit thermostat before replacing a suspected heater:



3. Remove lower front panel.

4. Push manual reset on high limit.

5. Pull one lead from high limit and check for continuity. Replace if open.

6. Apply a coating of heat sink compound,

P/N 110563, to the high limit base before mounting to tank.

Check high limit thermostat

To replace the wash tank heater:

1. Perform steps 1-5 above.

2. Open machine front door and remove lower spray arm(s).

3. Remove round scrap screen and pump intake strainer.

4. Disconnect heater wires and remove retaining nuts.

5. Apply bead of sealing putty (Compound

440, P/N 104889 or comparable) to heater flanges.

6. Install washers and insert replacement heater in tank.

7. Install retaining nuts. Wipe off excess sealing putty from inside tank.

8. Reconnect heater wires.

9. Restore power.

10. Check for leaks and proper operation.

11. Reinstall lower front panel.

Remove heater leads and retaining nuts

Remove heater from sump

100


8.2.9 Booster Tank Heater and High Limit Thermostat

UH-200B, UH-100B

The booster tank assembly is mounted on the left side of the machine base.

It raises the incoming water temperature to a minimum of 180

°F/82°C for the final rinse cycle.

The heater is protected from a low water condition by a surface mounted high limit thermostat.

Check the high limit thermostat before replacing a suspected heater:




4. Push manual reset on high limit.

5. Pull one lead from high limit and check for continuity. Replace if open.

6. Apply a coating of heat sink compound,

P/N 110563, to the high limit base before mounting to tank.

Remove heater wires

To replace the booster tank heater:


2. Turn off incoming water suppy.

3. Remove drain plug in bottom of booster and drain water from tank.

4. Disconnect heater wires.

5. Remove (3) retaining element retaining nuts and washers.

6. Remove element.

7. Replace booster element gasket.

DO NOT REUSE OLD GASKET

DO NOT APPLY RTV SEALANT

TO HEATER FLANGE.

8. Install the new element and tighten the retaining nuts in a cross pattern until element and gasket are snug.

DO NOT OVER TORQUE THE

RETAINING NUTS.

DOING SO WILL DAMAGE

THE TANK STUDS.

9. Reconnect heater wires.

10. Restore power and water.

11. Check the element and the drain plug for leaks.

12. Check for proper operation.

13. Reinstall lower front panel.

Remove retaining nuts

Install new gasket

DO NOT REUSE THE OLD GASKET

101


8.2.10 Wash Pump/Motor (All Models)

The wash pump/motor, drain pump/motor and drain valve are mounted on a removable plate.

The plate can be pulled out the front of the dishwasher to gain access to the components.

Removing the Pump Mounting Plate:




4. Remove dispensing pump(s) if equipped.

5. Disconnect drain valve wires.

6. Remove the wash pump suction and discharge hoses.

7. Remove (2) retaining bolts holding front of mounting plate

8. Pull the pump mounting plate forward about 2" [50mm] then turn the assembly

CW so the drain valve will clear the sump suction.

9. Pull the assembly forward and turn the assembly CCW slightly as you pull.

10. Feed additional fill and drain hose from the rear of the machine.

11. Turn CCW, pull the assembly forward and out.

Remove dispensing pumps (if equipped)

Remove hoses

Remove (2) retaining bolts

Alternate Pump Removal Method

Through Rear Access door:


2. Pull machine out to gain access to rear.

3. Remove rear access door.

4. Remove mounting nuts from drain valve and drain pump.

5. Disconnect wash pump, drain pump, and drain valve wires.

6. Pull drain valve and drain pump out rear of machine.

7. Pull wash pump/motor out the rear of machine.


Pull forward and turn CW

Make sure drain valve is clear

Turn CCW, pull forward and out

102


8.2.10 Wash Pump/Motor (All Models)

Capacitor

Assembly

Seal Assembly

Shim Washer

(Do not Discard)

Impeller

(Left hand Thread)

Impeller Nut and Washers

Stationary

Portion of Seal

Assembly

Carbon Face

Motor

Red

Red

White

White

Rubber Boot

Ceramic Face

SEAL ASSEMBLY DETAIL

Drain

Plug

Rotating

Portion of Seal

Assembly

32

20

31

WC

N

2

L1

Replacing the Wash Pump Seal:

1. Remove the 8 mm drain plug in the pump volute and drain the pump.

2. Remove (9) pump housing screws.

3. Remove the impeller retaining hardware.

MOTOR SHAFT HAS LEFT-HAND

THREADS. TURN IMPELLER CW TO

REMOVE.

4. Remove the defective seal.

Save the shim washer

5. Install the replacement seal.

Stationary portion goes in the pump housing.

Rotating portion mounts on the shaft.


Capacitor

Single Phase Motor Wiring Diagram

103


8.2.11 Drain Pump/Motor and Drain Valve (All Models)

There are no service replacement parts for the drain pump/motor, nor the drain valve.

The components can be disassembled and cleaned if necessary.

Exploded views of the drain pump/motor and drain valve are provided below.

The drain components are mounted on the pump mounting plate.

Refer to Section 8.2.10, Removing the Pump Mounting Plate, page 102.

To service the Drain Pump/motor or drain valve:

Method 1:

1. Turn off the incoming water supply.


3. If power is off, turn machine on, then immediately off.

This will force the machine to enter the auto-shutdown cycle and drain.

4. If the machine fails to drain, check the drain hose for kinks which might restrict drain water flow.

5. Check the building plumbing for obstructions.


7. Remove pump mounting plate per

Section 8.2.10, page 102.

8. Replace the defective component and reassemble in reverse order.

To service the Drain Pump/Valve from the rear of the machine.

Method 2:

1. Perform steps 1-6 in Method 1.

2. Pull the machine out to gain access to the rear.

3. Remove the rear service door.

4. Inspect the drain components and hoses. Disconnect hoses.

5. Disconnect the wires.

6. Remove the grip nuts on the mounting brackets.

7. Pull the drain components out the back of the machine.

8. Inspect, clean or replace.


Drain Pump/motor

Exploded Diagram

Drain Valve

Exploded Diagram

104


8.2.12 Wash Arm Bearings (All Models)

All dishwasher models use two interchangeable wash arm assemblies, one upper and one lower.

Each wash arm contains two replaceable bearings. Models UH-200B, UH-200 also have a separate upper and lower rinse arm assembly.

To replace the wash arm bearings:

1. Remove knurled retaining screw from the wash arm.

(For UH-200B, UH-200 first remove rinse arm assembly)

2. Place the wash arm face down on a clean working surface.

3. Remove the wash arm hub with an adjustable wrench.

The wash arm nut on the other side is keyed so it will not turn.

4. Separate the hub and nut from the stainless steel arm.

5. Carefully press out the old bearing in each piece.

6. Press a new bearing in the hub and nut.

DO NOT HAMMER THE BEARING IN PLACE.


8. Reinstall the arm in the machine and spin to check for smooth operation.

Remove wash arm hub

Separate hub and nut from wash arm

PRESS new bearings in

DO NOT HAMMER

Wash arm nut bearing

Wash arm hub bearing

105


8.2.13 Rinse Arm Bearings (UH-200B, UH-200 Only)

The UH-200B, UH-200 dishwasher models use two interchangeable wash arm assemblies, and two interchangeable rinse arm assemblies. Refer to Section 8.2.12 for wash arm bearing repair.

Each rinse arm contains two replaceable bearings.

To replace the rinse arm bearings:

1. Unscrew the knurled spindle in the rinse arm assembly and remove the rinse arm assembly.

2. Place the rinse arm on a clean working surface.

3. Hold the knurled retaining nut on the underside of the rinse arm and unscrew the knurled spindle.

4. Carefully press out the old bearings in the stainless steel rinse arm.

5. Press new bearings into the arm.

DO NOT HAMMER THE BEARINGS IN PLACE.


7. Reinstall the arm in the machine and spin to check for smooth operation.

Unscrew knurled spindle and retaining nut

PRESS new bearings in

DO NOT HAMMER

106


8.2.14 Door Shock and Hinge

(All Models)

All dishwasher models utilize (2) twin seal gas-operated shocks for the door. The shocks serve the same purpose as a conventional door spring on other machines.

The advantage of the shock is smoother door operation and a softer, more controlled door closure than door spring designs.

Preparation for Repair:



3. Pull the machine out if required to gain access to side.

4. Remove front and side panels.

5. Close door fully.

1

To replace a door shock:

1. Remove the upper cotter pin and washer.

2. Remove shock from upper pin and let shock hang from hinge assembly.

3. Use a 5/32" allen wrench to remove the hinge retaining screw.

4. Gently pry the hinge out of the door assembly.

5. Remove the lower cotter pin and washer.


7. Check door operation and return machine to service.

3

Door

Shock

Door

Hinge

2

5 4

107


8.2.15 Door Safety Switch and Magnet

(All Models)

All dishwasher models utilize a magnetic reed door safety switch mounted in the left front corner of the slide out control cabinet.

A door magnet operates the safety switch when the door is fully closed.

The dishwasher will not operate if the door is open when the POWER pushbutton is pushed ON to fill the machine.

If the dishwasher is in an automatic cyle, opening the door will pause the cycle. When the door is closed, the cycle will resume where it left off.

To replace door safety switch:



3. Open the door and remove (2) screws, one in each corner of the top hood.

4. Pull the slide-out control cabinet forward.

5. Pull the mylar drip shield back.

6. Disconnect the switch wires from

T3 and T4 on the Timer Control Bd.

7. Remove (2) 6-32 grip nuts holding the safety switch.


!

CAUTION:

Do not overtighten the safety switch retaining nuts. Overtightening can damage the switch.

Door safety switch

Door

Safety Switch

Slide-out

Control

Cabinet

Door

Door

Magnet

108


8.2.16 Circuit Breaker (All Models)

All dishwasher models are equipped with an 8 AMP circuit breaker mounted on the lower left corner of the machine. The breaker is located behind the lower front access panel.

The circuit breaker protects the 120VAC control circuit in the event of an overload.

The circuit breaker is a manual reset device and should be checked if the dishwasher fails to operate.

Circuit

Breaker

To replace circuit breaker:


2. Remove the lower front panel.

3. Pull the mylar drip shield back.

4. Push the button on the circuit breaker to check reset.

5. Disconnect wires.

6. Push retaining clips on back side of breaker and push out.


109

Part 8: REPLACEMENT PARTS

This Page

Intentionally

Left

Blank

110


PART 9:

REPLACEMENT

PARTS

In This Part—

• Parts illustrations and replacement parts lists

Special Materials

The following solvents, sealants, and pipe compounds are required for repairs but are not called out in the replacement parts list. The materials listed below are recommended as standard issue for service technicians:

• Pipe sealant (Loctite® 565 or comparable) Champion P/N 106437

• Silicon sealant (732 RTV or comparable) Champion P/N 104827

• Thread sealing teflon tape, Champion P/N 106436

• Plumber’s putty (Compound 440 or comparable) Champion P/N 104889

• Heat Sink Compound (used on high limit thermostat) Champion P/N 110563

111


7

6

1

6

6

7

11

7

11

7

6

5

3

4

7

6

6

8

9

STUD

2

STUD

10

6

7 8

9

112

Figure 9.1-

Upper Hood Assembly and Control Cabinet

(All Models)


UPPER HOOD ASSEMBLY

AND CONTROL CABINET

(ALL MODELS)

Fig. 9.1

Part

Item No.

No.

1

4

5

2

3

6

9

10

7

8

11

Part Description

322688 PANEL, TOP .................................................................................

322660

322684

PANEL, CONTROL ......................................................................

CHANNEL, HARNESS ...............................................................

323413 BRACKET, HARNESS SUPPORT ..............................................

0503647 BUSHING, STRAIN RELIEF ......................................................

107966 NUT, GRIP 10-32 W/NYLON INSERT .......................................

107033

107967

106026

100007

106486

WASHER ......................................................................................

NUT, GRIP W/NYLON INSERT .................................................

WASHER, FLAT 1/4" ...................................................................

SCREW, 10-32 X 3/8" TRUSS HD ..............................................

WASHER, LOCK #10 SPLIT ......................................................

Qty.

1

1

1

1

1

8

2

2

8

2

4

113


114

Figure 9.2-

Tank, Base, Guide Rails, and Panels

(UH-200B, UH-200)


TANK, BASE, GUIDE RAILS, AND PANELS

(UH-200B, UH-200)

Fig. 9.2

Part

Item No.

No.

18

19

20

21

22

23

12

13

14

15

16

17

1

4

5

2

3

6

7

10

11

8

9

Part Description Qty.

322639 TANK ASSEMBLY .........................................................................

322648 BASE ASSEMBLY ..........................................................................

108035 FOOT, LEVELING ..........................................................................

108036 CAP, LEVELING FOOT .................................................................

322650 PANEL, RH FULL ...........................................................................

322651 PANEL, LH FULL ...........................................................................

322649 PANEL, FRONT ..............................................................................

1

322682 DOOR, REAR ACCESS ..................................................................

322685 CHANNEL, FILLER .......................................................................

112892

112892

SHIELD, BASE, SIDE ....................................................................

SHIELD, BASE, SIDE ....................................................................

1

1

1

2

4

1

1

4

1

1

112867 SHIELD, BASE, FRONT ................................................................

112919 GASKET, BASE STRIP ..................................................................

107967 NUT, GRIP 1/4" W/NYLON INSERT ............................................

322662 GUIDE, LH RAIL ............................................................................

322663 GUIDE, RH RAIL ...........................................................................

0501418 SCREW, 1/4-20 X 1/2" ROUND HD ..............................................

100778 SCREW, 1/4-20 X 3/8" TRUSS HD ................................................

107966 NUT, GRIP 10-32 W/NYLON INSERT ..........................................

107033 WASHER .........................................................................................

100778 SCREW, 1/4-20 X 3/8" TRUSS HD ................................................

106482 WASHER, LOCK 1/4" .....................................................................

112920 GASKET, DOOR STRIP .................................................................

2

6

2

2

4

2

4

1

1

4

1

8

115


116

Figure 9.3-

Tank, Base, Guide Rails, and Panels

(UH-100B, UH-100, UL-100)


TANK, BASE, GUIDE RAILS, AND PANELS

(UH-100B, UH-100, UL-100)

Fig. 9.3

Part

Item No.

No.

18

19

20

21

22

23

24

25

12

13

14

15

16

17

1

4

5

2

3

6

7

10

11

8

9


322639

322648

108035

108036

322652

322653

322649

322682

322686

322685

112898

TANK ASSEMBLY ..........................................................................

1

BASE ASSEMBLY ..........................................................................

FOOT, LEVELING ..........................................................................

CAP, LEVELING FOOT .................................................................

PANEL, RH HALF ..........................................................................

PANEL, LH HALF ..........................................................................

PANEL, FRONT ..............................................................................

DOOR, REAR ACCESS ..................................................................

CHANNEL, LH FILLER .................................................................

CHANNEL, FILLER .......................................................................

SHIELD, BASE, LH SIDE ..............................................................

1

1

1

1

4

1

1

4

1

1

112892

112867

112919

322662

SHIELD, BASE, SIDE ....................................................................

SHIELD, BASE, FRONT ................................................................

GASKET, STRIP .............................................................................

GUIDE, LH RAIL ............................................................................

322663 GUIDE, RH RAIL ...........................................................................

0501418 SCREW, 1/4-20 X 1/2" ROUND HD ..............................................

100778

107966

107033

100778

107967

322645

322646

106482

SCREW, 1/4-20 X 3/8" TRUSS HD ................................................

NUT, GRIP 10-32 W/NYLON INSERT ..........................................

WASHER .........................................................................................

SCREW, 1/4-20 X 3/8" TRUSS HD ................................................

NUT, GRIP 1/4" W/NYLON INSERT ............................................

TRIM, TANK FRONT RH ..............................................................

TRIM, TANK FRONT LH ...............................................................

WASHER, LOCK 1/4" .....................................................................

1

1

4

2

6

2

2

4

4

1

1

1

1

8

117


118

6

9

6

7

8

10

7

5

4

4

3

Figure 9.4-

Door and Door Safety Switch Assembly

(All Models)

1

2

11


DOOR AND DOOR SAFETY SWITCH ASSEMBLY

(ALL MODELS)

Fig. 9.4

Part

Item No.

No.

9

10

11

7

8

5

6

3

4

1

2

322690

112727

111026

108954

112659

106551

106026

112543

112779

322672

322635


DOOR ..............................................................................................

1

GASKET, DOOR ............................................................................

1

MAGNET, DOOR SAFETY ...........................................................

1

NUT, GRIP 6-32 W/NYLON INSERT ...........................................

4

SWITCH, MAGNETIC REED DOOR SAFETY ...........................

1

PIN, COTTER .................................................................................

4

WASHER ........................................................................................

4

SHOCK, DOOR ..............................................................................

2

SCREW, 1/4-20 X 1-1/2" FLAT HD HEX SOCKET .....................

2

OUTER DOOR HINGE, LH ..........................................................

1

OUTER DOOR HINGE, RH ..........................................................

1

119


120

16

15

6

14

3

2

1

4


in control cabinet

5

6

7

18

17

To rinse aid pump

19

12 13

8

6

To outside lower wash arm support

10

11

To upper wash arm support

9

11

10

To booster outlet

UH-200B

or

To fill/rinse valve

UH-200

Figure 9.5-

Final Rinse Manifold Assembly

(UH-200B, UH-200)


FINAL RINSE MANIFOLD ASSEMBLY

(UH-200B, UH-200)

Fig. 9.5

Part

Item No.

No.

12

13

14

15

16

17

9

10

7

8

11

18

19

1

4

5

2

3

6

112741

112668

112731

112612

112646

105994

112538

112537

322668

107967

106026

112536

112734

112798

100500

108349

107424

112763

112883


HARNESS, PRESSURE TRANSDUCER .......................................

1

TRANSDUCER, PRESSURE ..........................................................

1

O-RING, PRESSURE TRANSDUCER ...........................................

1

THERMISTOR, TEMPERATURE PROBE .....................................

1

MANIFOLD, RINSE ........................................................................

1

CLAMP, HOSE .................................................................................

3

HOSE, UPPER RINSE .....................................................................

1

HOSE, LOWER RINSE ....................................................................

1

BRACKET, RINSE MANIFOLD .....................................................

1

NUT, GRIP 1/4" W/NYLON INSERT .............................................

2

WASHER, 1/4" ..................................................................................

2

HOSE, MOLDED (UH-200B) ..........................................................

1

HOSE (UH-200) ................................................................................

1

BARB, HOSE 1/2" NPT X 5/8" BRASS ........................................

1

BREAKER, VACUUM 1/2" .............................................................

1

KIT, REPAIR 1/2" VACUUM BREAKER .......................................

1

PLUG, 1/8" ........................................................................................

1

FITTING, INJECTOR ......................................................................

1

TUBING (PUMP TO INJECTOR) (1/8 OD X 1/16 ID) ..................

1

121


(See final rinse manifold for rinse aid injection point on UH-200B, UH-200)

10

1

11

To detergent pump

Water level probe and detergent injection point

UH-200B, UH-200

REAR

6

7

2

3

4

LEFT

SIDE

13

16 17

To detergent pump

1

12

To rinse aid pump

To sanitizer pump

LEFT

SIDE

(UL-100 Only)

15 14

To booster outlet on UH-100B

or fill/rinse valve on UH-100, UL-100

6

7

8

REAR

5

2

4

122

9

Fill chute and chemical injection point

UH-100B, UH-100, UL-100

Figure 9.6-

Chemical Injections Points, Water Level Probe Assembly (UH-200B, UH-200) and Fill Chute Assembly (UH-100B, UH-100, UL-100)

LEFT

SIDE


CHEMICAL INJECTION POINTS

WATER LEVEL PROBE ASSEMBLY (UH-200B, UH-200)

AND

FILL CHUTE ASSEMBLY (UH-100B, UH-100, UL-100)

Fig. 9.6

Part

Item No.

No.

10

11

12

13

14

15

16

17

8

9

6

7

3

4

1

2

5

107424

100736

112632

0509048

106026

100141

106482

112539

112612

112728

112879

112880

112906

112648

112852

107966

107033


PLUG 1/8" .......................................................................................

1

BOLT, 1/4" X 3/4" HEX HD ...........................................................

4

PROBE, WATER LEVEL (UH-200B, UH-200) .............................

1

GASKET (ALL MODELS) ............................................................

1

WASHER FLAT 1/4" ......................................................................

11


4

WASHER ........................................................................................

4

CHUTE, FILL (UH-100B, UH-100, UL-100) ................................

1

THERMISTOR, PROBE (UH-100B, UH-100, UL-100) ...............

1

FITTING, COMPRESSION 1/8" NPT X 1/4" OD .........................

1

TUBING (UH-200B, UH-200) .......................................................

1

TUBING (UH-100B, UH-100, UL-100) .........................................

3

CLAMP ...........................................................................................

1

HOSE, MOLDED (UH-100B) ........................................................

1

HOSE (UH-100, UL-100) ...............................................................

1

NUT, GRIP 10-32 W/NYLON INSERT .........................................

1

WASHER ........................................................................................

1

123


19 18

5

23

6

To Rinse

Manifold

20

7

22

1

2

4

3

Top of Hood

8

21

9

25

11

15

4

16

5

17

4

To Rinse

Manifold

6

26

27

24

22

Figure 9.7-

Sump and Spray Piping Assembly

(UH-200B, UH-200)

10

124

12

14

13


SUMP AND SPRAY PIPING ASSEMBLY

(UH-200B, UH-200)

Fig. 9.7

Part

Item No.

No.

11

12

13

14

15

16

9

—

7

8

10

17

18

19

20

1

4

5

2

3

6

21

22

23

24

25

26

27


110215

107873

112641

109466

112535

105993

SCREW, SPECIAL .........................................................................

1

WASHER, PACKING .....................................................................

1

SUPPORT, UPPER WASH ARM ...................................................

1

O-RING ...........................................................................................

3

HOSE, UPPER WASH ....................................................................

1

CLAMP, HOSE ...............................................................................

2

112642

112771

112544

112545

323265

112640

110562

108954

112612

109467

109460

DEFLECTOR ..................................................................................

SCREEN, ROUND SCRAP ............................................................

ELEMENT, WASH HTR, 1.2 KW, 208-240V (UH-200B) ............

ELEMENT, WASH HTR, 1.2 KW, 115V (UH-200) ......................

COVER, PUMP INTAKE ...............................................................

SUPPORT (INSIDE), LOWER WASH ARM .................................

THERMOSTAT, FIXED HIGH LIMIT ..........................................


THERMISTOR, TEMPERATURE PROBE ...................................

O-RING ...........................................................................................

O-RING ...........................................................................................

1

1

1

1

1

1

1

2

1

1

1

109463 SUPPORT (OUTSIDE), LOWER WASH ARM .............................

1

100141-T NUT, TOPLOCK 1/4 -20 ................................................................

4

106026

110881

WASHER, FLAT 1/4" .....................................................................

WASHER, SEALING .....................................................................

4

4

100736

105994

112538

112537

110440

110214

106482

BOLT, 1/4-20 X 3/4" HEX HD .......................................................

4

CLAMP, HOSE ...............................................................................

2

HOSE, UPPER RINSE ...................................................................

1

HOSE, LOWER RINSE ..................................................................

1

BOLT, 6MM X 25MM HEX HD ....................................................

4

NUT, DULL 6MM ..........................................................................

4

WASHER, LOCK 1/4" ....................................................................

4

125


19 18

5

7

6

20

5

21

1

2

4

3

Top of Hood

22

11

15

4

16

17

4

6

Figure 9.8-

Sump and Spray Piping Assembly

(UH-100B, UH-100, UL-100)

23

24

9

8

25

26

Seals heater mtg.

holes

10

27

UL-100

Only

12

14

13

126


SUMP AND SPRAY PIPING ASSEMBLY

(UH-100B, UH-100, UL-100)

Fig. 9.8

Part

Item No.

No.

11

12

13

14

15

16

9

—

7

8

10

17

18

19

20

1

4

5

2

3

6

21

22

23

24

25

26

27


110215

107873

112732

109466

112535

105993

SCREW, SPECIAL .........................................................................

1

WASHER, PACKING .....................................................................

1

SUPPORT, UPPER WASH ARM ...................................................

1

O-RING ...........................................................................................

3

HOSE, UPPER WASH ....................................................................

1

CLAMP, HOSE ...............................................................................

2

112642

112771

112544

112546

323265

112640

110562

108954

112612

109467

109460

DEFLECTOR ..................................................................................

SCREEN, ROUND SCRAP ............................................................

ELEMENT, WASH HTR, 1.2 KW, 208-240V (UH-100B) ............

ELEMENT, WASH HTR, .75 KW, 115V (UH-100) ......................

COVER, PUMP INTAKE ...............................................................

SUPPORT (INSIDE), LOWER WASH ARM .................................

THERMOSTAT, FIXED HIGH LIMIT (UH-100B, UH-100) ........



O-RING ...........................................................................................

O-RING ...........................................................................................

1

1

1

1

1

1

1

2

1

1

1

112639 SUPPORT (OUTSIDE), LOWER WASH ARM .............................

1

100141-T NUT, TOPLOCK 1/4-20 .................................................................

4

106026

110881

WASHER, FLAT 1/4" .....................................................................

WASHER, SEALING .....................................................................

4

4

100736

110440

110214

106482

112910

104882

104584

BOLT, 1/4-20 X 3/4" HEX HD .......................................................

4

BOLT, 6MM X 25MM HEX HD ....................................................

4

NUT, DULL 6MM ..........................................................................

4

WASHER, LOCK 1/4" ....................................................................

4

SCREW, 1/2-13 X 1" ......................................................................

2

WASHER, FLAT ............................................................................

4

NUT, 1/2-13 HEX HD.....................................................................

2

127


2

1

2

Upper Spray

Arm Assembly

3

4

5

6

7

8

5

Figure 9.9-

Spray Arm Assembly

(UH-200B, UH-200)

128


SPRAY ARM ASSEMBLY

(UH-200B, UH-200)

Fig. 9.9

Part

Item No.

No.

1

4

5

2

3

6

7

8

112619

112618

112616

112620

112551

112550

112547

112549


SPINDLE, RINSE ARM .................................................................

1

BEARING, RINSE ARM ................................................................

2

RINSE ARM ASSEMBLY (INCLUDES ITEMS 1-4) ..................

1

NUT, RETAINING ..........................................................................

1

BEARING, WASH ARM ................................................................

2

NUT, WASH ARM ..........................................................................

1

WASH ARM ASSEMBLY (INCLUDES ITEMS 5-8) ...................

1

HUB, WASH ARM .........................................................................

1

—

—

112617

112548

ARM, RINSE (STAINLESS STEEL ONLY) .................................

ARM, WASH (STAINLESS STEEL ONLY) .................................

1

1

Quantities shown are for one rinse arm assembly and one wash arm assembly.

Machine contains two of each assembly.

129


130

Upper Spray

Arm Assembly

5

2

1

2

3

4

Figure 9.10-

Spray Arm Assembly

(UH-100B, UH-100, UL-100)


SPRAY ARM ASSEMBLY

(UH-100B, UH-100, UL-100)

Fig. 9.10

Part

Item No.

No.

1

4

5

2

3

112716

112551

112550

112547

112549


RETAINER, WASH ARM ..............................................................

1

BEARING, WASH ARM ................................................................

2

NUT, WASH ARM ..........................................................................

1

WASH ARM ASSEMBLY (INCLUDES ITEMS 1-5) ...................

1

HUB, WASH ARM .........................................................................

1

— 112548 ARM, WASH (STAINLESS STEEL ONLY) .................................

1

Quantities shown are for one wash arm assembly.

Machine contains two wash arm assemblies.

131


132

Figure 9.11-


(UH-200B, UH-200)


FILL/RINSE VALVE ASSEMBLY

(UH-200B, UH-200)

4

5

—

8

—

6

7

9

10

11

—

Fig. 9.11

Part

Item No.

No.

1

2

—

0505320

112584

113122

3

—

109886

111437

12

—

13

109902

109903

106482

112851

112734

113124

105994

112831

322667

324935

100734

106026

111471

111472


WASHER, HOSE ............................................................................

1

HOSE, REINFORCED FILL 1/2" ID (Prior to S/N U-1991) .........

1

HOSE, REINFORCED FILL 3/4" ID .............................................

1

(Beginning with S/N U-1991 and above)

VALVE, SOLENOID, 1/2" NPT (120V) (Prior to S/N U-1991) ....

1

VALVE, SOLENOID, 3/4" NPT (120V) ........................................

1


HOSE (UH-200B) (Prior to S/N U-1991) .......................................

1

HOSE (UH-200) (Prior to S/N U-1991) .........................................

1

HOSE, REINFORCED 3/4" I.D. (UH-200) ....................................

1

(Beginning with S/N U-1991 and above) ........................................

CLAMP, HOSE ...............................................................................

1

BARB, HOSE ELBOW 1/2" NPT X 5/8" BRASS .........................

1

(Prior to S/N U-1991)

BRACKET, FILL VALVE SUPPORT (Prior to S/N U-1991) ........

1

BRACKET, FILL VALVE SUPPORT ............................................

1


1

BOLT, 1/4-20 X 1/2" HEX HD .......................................................

2

WASHER, FLAT 1/4" .....................................................................

2

COIL, SOLENOID VALVE 120V (Prior to S/N U-1991) ..............

1

COIL, SOLENOID VALVE 12OV .................................................

1


KIT, REPAIR, 1/2" SOLENOID VALVE .......................................

1


1


1

WASHER, LOCK 1/4" ....................................................................

2

133


134

Figure 9.12-


(UH-100B, UH-100, UL-100)


FILL/RINSE VALVE ASSEMBLY

(UH-100B, UH-100, UL-100)

Fig. 9.12

Part

Item No.

No.

12

13

14

15

16

17

9

10

7

8

11

18

19

20

1

4

5

2

3

6

0505320

112584

112886

0504952

112851

112852

105994

112830

100734

106026

322678

0505235

0505229

0501406

0502811

0502804

0502803

0504958

0502807

106482


WASHER, HOSE ............................................................................

1

HOSE, REINFORCED FILL 1/2" ID .............................................

1

REDUCER, 3/8" NPTM X 1/2" NPTF BRASS .............................

1

VALVE, SOLENOID, 3/8" NPT (120V C0IL) ...............................

1

HOSE (UH-100B) ...........................................................................

1

HOSE (UH-100, UL-100) ...............................................................

1

CLAMP, HOSE ...............................................................................

1

BARB, HOSE ELBOW 3/8" NPT X 5/8" BRASS .........................

1

BOLT, 1/4-20 X 1/2" HEX HD .......................................................

2

WASHER, FLAT 1/4" .....................................................................

2

BRACKET, FILL VALVE SUPPORT ............................................

1

COIL, SOLENOID VALVE 120V ..................................................

1

GUIDE SOLENOID .......................................................................

1

SCREW, 8-32 X 1/2" ......................................................................

3


1

WASHER, BRASS ..........................................................................

1

STRAINER .....................................................................................

1

FLOW WASHER ............................................................................

1

WASHER, BRASS ..........................................................................

1

WASHER, LOCK 1/4" ...................................................................

2

135


136

Figure 9.13-

Wash Pump Piping, Drain Pump, Drain Valve and Drain Piping

(All Models)


WASH PUMP PIPING

DRAIN PUMP, DRAIN VALVE AND DRAIN PIPING

(ALL MODELS)

Fig. 9.13

Part

Item No.

No.

8

9

6

7

3

4

1

2

5

10

11

12

13

14

15

16

17

18

19

20

21

107340

112530

104165

112529

104164

105993

112540

112531

112541

112729

323201

107966

100141

100734

106026

112850

323393

105993

112849

112848

106482


CLAMP, HOSE ...............................................................................

1

HOSE, ELBOW- PUMP INTAKE ..................................................

1

HOSE, CLAMP ...............................................................................

1

HOSE, PUMP OUTLET (REPLACES ITEMS 16-20) ..................

1

CLAMP, HOSE ...............................................................................

1

CLAMP, HOSE ...............................................................................

4

PUMP, DRAIN ................................................................................

1

HOSE, DRAIN PUMP ....................................................................

1

VALVE, DRAIN ..............................................................................

1

TUBING, DRAIN 5/8" ID X 1" OD ...............................................

1

PLATE, PUMP MOUNTING .........................................................

1


1


4

BOLT, 1/4-20 X 1/2" .......................................................................

2

WASHER, FLAT 1/4" .....................................................................

2

HOSE, ELBOW LOWER WASH ...................................................

1

TEE, SPECIAL ...............................................................................

1

CLAMP, HOSE ...............................................................................

3

HOSE, DRAIN PUMP INTAKE ....................................................

1

HOSE, WASH PUMP DISCHARGE .............................................

1

WASHER, LOCK 1/4" ....................................................................

2

137


138

Figure 9.14-

Wash Pump/Motor Assembly

(All Models)


WASH PUMP/MOTOR ASSEMBLY

(ALL MODELS)

14

—

—

Fig. 9.14

Part

Item No.

No.

1

4

5

2

3

6

9

10

7

8

11

112836

———

———

———

———

112843

112842

———

112838

112837

112841

12

13

112636

112637

112634

112635

112781


VOLUTE, PUMP ............................................................................

1

SCREW, SELF TAPPING ...............................................................

9

NUT, RETAINING ..........................................................................

1

WASHER, LOCK ............................................................................

1

WASHER ........................................................................................

1

IMPELLER, 60HZ ..........................................................................

1

IMPELLER, 50HZ ..........................................................................

1

WASHER ........................................................................................

1

SEAL ASSEMBLY .........................................................................

1

GASKET .........................................................................................

1

FLANGE, PUMP ............................................................................

1

CAPACITOR, 10 mf, 220V .............................................................

1

(UH-200B, UH-100B)

CAPACITOR, 31.5 MF, 115V ........................................................

1

(UH-100, UH-200, UL-100)

MOTOR, PUMP, 115V/60/1 (INCLUDES ITEMS 1-6, 10-11, 13) 1

(UH-200, UH-100, UL-100)

MOTOR, PUMP, 208-240V/60/1 ....................................................

1

(INCLUDES ITEMS 1-6, 9-12) (UH-200B, UH-100B)

MOTOR, PUMP, 208-240V/50/1 ....................................................

1

(INCLUDES ITEMS 1-5, 7, 9-12)

139


140

Figure 9.15-

Booster Assembly

(UH-200B, UH-100B)


BOOSTER ASSEMBLY

(UH-200B, UH-100B)

Fig. 9.15

Part

Item No.

No.

9

10

7

8

11

12

13

14

15

16

—

—

5

6

3

4

1

2

—

100734

106026

105994

112851

112612

110562

108954

112536

112648

106482

112542

101259

109985

112949

112950

107909

111334

100003

106482


TANK, BOOSTER ..........................................................................

1

PLUG, 1/8" NPT BRASS ...............................................................

1

GASKET, HEATER ........................................................................

1

HEATER, BOOSTER 6 KW, 208-240V/60/1 .................................

1


1


1


1

NUT, PLAIN 1/4" ...........................................................................

3

WASHER, LOCK 1/4" ....................................................................

3

BOLT, 1/4-20 X 1/2" HEX HD .......................................................

2

WASHER, FLAT 1/4" .....................................................................

2

CLAMP, HOSE ...............................................................................

3

HOSE, MOLDED ...........................................................................

1


1

THERMOSTAT, FIXED HIGH LIMIT ..........................................

1


2

HOSE (UH-200B) ...........................................................................

1

HOSE, MOLDED (UH-100B) ........................................................

1

WASHER, LOCK 1/4" ...................................................................

2

141


To pressure transducer

142

Figure 9.16-

Solid State Controls

(All Models)


SOLID STATE CONTROLS

(ALL MODELS)

18

18

19

19

—

—

—

—

Fig. 9.16

Part

Item No.

No.

9

10

7

8

11

12

13

14

1

4

5

2

3

6

106090

107966

103378

0503574

0503647

112856

112855

112903

107967

106026

108954

112659

112741

112780

15 112627

16

16

17

112628

112907

112629


PLATE, CABLE TIE .......................................................................

6


6

TIE, CABLE ....................................................................................

A/R

BUSHING, STRAIN RELIEF (UH-100B, UH-100, UL-100) .......

1

BUSHING, STRAIN RELIEF (UH-200B, UH-200) ......................

1

FASTENER, PUSH-N ....................................................................

2

SHIELD, DRIP ................................................................................

1

CLIP, RETAINING .........................................................................

4


2

WASHER, FLAT 1/4" .....................................................................

2

NUT, GRIP, 6-32 W/NYLON INSERT ..........................................

10

SWITCH, MAGNETIC REED DOOR SAFETY ...........................

1

HARNESS, PRESSURE TRANSDUCER .....................................

1

FUSE 2A, 250V FAST ACTING ....................................................

1

BOARD, TEMPERATURE AND PRESSURE DISPLAY .............

1

(ALL MODELS)

BOARD, TIMER CONTROL .........................................................

1

(UH-200B, UH-200, UH-100B, UH-100)

BOARD, TIMER CONTROL (UL-100 ONLY) .............................

1

BOARD, TIME SELECT (FILL/CHEMCIAL DISPENSER) .......

1

(ALL MODELS)

900827

113292

900828

113293

112736

112737

112738

112944

KIT* UH-200 2-PIECE CONTROL CABINET W/TOUCH PAD

(UH-200B, UH-200) PRIOR TO S/N U1938 .................................

1

TOUCH PAD/DISPLAY

(UH-200, UH-200B) AFTER S/N U1938 .......................................

1

KIT* UH/UL-100 2-PIECE CONTROL CABINET W/TOUCH

PAD (UH-100, UH-100B, UL-100) PRIOR TO S/N U1938 ..........

1

TOUCH PAD/DISPLAY

(UH-100, UH-100B, UL-100) AFTER S/N U1938 ........................

1

HARNESS, WIRING (UH-200B, UH-100B) .................................

1

HARNESS, WIRING (UH-200, UH-100) ......................................

1

HARNESS, WIRING (UL-100) ......................................................

1

HARNESS, WIRING (UH-200B, UH-100B) THREE PHASE .....

1

143


24

D

ET

R

/A

25 26

SA

N

I

2

C

O

M

C

O

M

C

O

M

2 2

144

Figure 9.17-

Base Mounted Electrical Controls

(All Models)


BASE MOUNTED ELECTRICAL CONTROLS

(ALL MODELS)

11

12

13

14

—

10

—

6

7

4

5

8

9

Fig. 9.17

Item No.

No.

1

—

2

3

15

—

16

17

18

19

Part

322661

322693

107369

107369

112897

112916

100734

106026

104624

103310

112791

0509527

109345

0501373

112769

322681

322692

112518

111826

110068

0503574

106482

107967


BRACKET, ELECTRICAL MOUNTING .....................................

1

(SINGLE PHASE)

BRACKET, ELECTRICAL MOUNTING .....................................

1

(THREE PHASE)

CONTACTOR, 25A, 2P, 120V COIL (SINGLE PHASE) ..............

1

(ALL MODELS) (WASH PUMP/MOTOR)

CONTACTOR, 25A, 2P, 120V COIL .............................................

1

(UH-200B, UH-200, UH-100B, UH-100) (WASH TANK HEATER)

BOARD, TERMINAL 10PT ...........................................................

1

LABEL, CHEMICAL CONNECTION ..........................................

1

BOLT, 1/4-20 X 1/2" .......................................................................

2

WASHER, FLAT 1/4" .....................................................................

2

SCREW, 8-32 X 3/8" TRUSS HD ..................................................

11

LUG, GROUND ..............................................................................

1

BLOCK, TERMINAL 75A-300V, SINGLE PHASE .....................

1

BLOCK TERMINAL, THREE PHASE .........................................

1

SCREW, 8-32 X 7/8" TRUSS HD ..................................................

1

SWITCH, 3 POSITION (UH-200B, UH-100B) .............................

1

BREAKER, CIRCUIT 8A ..............................................................

1

BRACKET, BOOSTER CONTACTOR .........................................

1

(UH-200B, UH-100B) (SINGLE PHASE)

BRACKET, BOOSTER CONTACTOR .........................................

1

(UH-200B, UH-100B) (THREE PHASE)

CONTACTOR, 40A, 2P, 120V COIL (UH-200B, UH-100B) ........

1

(SINGLE PHASE) (BOOSTER HEATER)

CONTACTOR, 50A, 3P, 120V COIL (UH-200B, UH-100B) ........

1

(THREE PHASE) (BOOSTER HEATER)

BUSHING, SNAP 1-1/2" ................................................................

1

BUSHING, STRAIN RELIEF ........................................................

1

WASHER, LOCK 1/4" ....................................................................

2

NUT, GRIP W/NYLON INSERT 1/4" ............................................

1

145


146

Figure 9.18-

(Optional) Detergent Pump for High Temp Machines

(UH-200B, UH-200, UH-100B, UH-100)


(OPTIONAL)

DETERGENT PUMP FOR HIGH TEMP MACHINES

(UH-200B, UH-200, UH-100B, UH-100)

Fig. 9.18

Part

Item No.

No.

1

4

5

2

3

10

11

8

9

6

7

12

13

14

15

16

17

18

108299

322675

100734

106482

106026

107050

110159

102564

111884

108194

108411

112879

112880

112878

0503695

112754

0501869

112728


MOTOR, PUMP DRIVE.................................................................

1

BRACKET, SINGLE CHEMICAL PUMP .....................................

1

BOLT, 1/4-20 X 1/2" HEX HD .......................................................

2

WASHER, LOCK 1/4" ....................................................................

2

WASHER, FLAT 1/4" .....................................................................

2

GROMMET .....................................................................................

1

SCREW, 8-32 X 5/8" ROUND HD .................................................

2

SCREW, 8-32 X 3/8" ROUND HD ................................................

2

PUMP ASSEMBLY (DOES NOT INCLUDE ITEM 10) ...............

1

TUBE, 3/16" ID X 3/8" OD ............................................................

1

CLAMP, HOSE ...............................................................................

2

TUBING (UH-200B, UH-200) ......................................................

1

TUBING (UH-100B, UH-100) ......................................................

1

TUBING (UH-200B, UH-200, UH-100B, UH-100) ......................

1

LABEL, DETERGENT ..................................................................

1

TUBE, PICK-UP .............................................................................

1

STRAINER .....................................................................................

1

FITTING, COMPRESSION 1/8" NPT X 1/4" OD .........................

1

—

—

900799

900800

(UH-200B, UH-200) .......................................................................

1

INSTALLATION KIT, DETERGENT PUMP

(INCLUDES ITEMS 1-12, 14-18)

(UH-100B, UH-100) .......................................................................

1

INSTALLATION KIT, DETERGENT PUMP

(INCLUDES ITEMS 1-11, 13, 15-17)

147


148

Figure 9.19-

(Optional) Rinse Aid Pump for High Temp Machines

(UH-200B, UH-200, UH-100B, UH-100)


(OPTIONAL) RINSE AID PUMP FOR HIGH TEMP MACHINES

(UH-200B, UH-200, UH-100B, UH-100)

Fig. 9.19

Part

Item No.

No.

COMMON PARTS

1 108299

4

5

2

3

6

7

8

9

322675

100734

106482

106026

107050

110159

102564

111884

UH-200B, UH-200

10 112759

11

12

13

14

15

16

17

18

108411

112883

112882

112763

0505483

112754

112881

0501869


MOTOR, PUMP DRIVE.................................................................

1

BRACKET, SINGLE CHEMICAL PUMP .....................................

1

BOLT, 1/4-20 X 1/2" HEX HD .......................................................

2

WASHER, LOCK 1/4" ....................................................................

2

WASHER, FLAT 1/4" .....................................................................

2

GROMMET ....................................................................................

1

SCREW, 8-32 X 5/8" ROUND HD ................................................

2

SCREW 8-32 X 3/8" ROUND HD .................................................

2

PUMP ASSEMBLY (DOES NOT INCLUDE ITEM 10 OR 19) ...

1

TUBE, 1/8" ID ................................................................................

1

CLAMP, HOSE ...............................................................................

2

TUBING (PUMP TO INJECTOR) .................................................

1

TUBING (PUMP TO SUPPLY) ......................................................

1

INJECTOR, RINSE AID .................................................................

1

LABEL, RINSE AID .......................................................................

1

TUBE, PICK-UP .............................................................................

1

CONNECTOR, STRAINER ...........................................................

1

STRAINER .....................................................................................

1

UH-100B, UH-100

15 0505483

16

18

19

20

21

112754

0501869

108194

112880

112878

LABEL, RINSE AID .......................................................................

1

TUBE, PICK-UP .............................................................................

1

STRAINER .....................................................................................

1

TUBE, 3/16" ID X 3/8" OD ............................................................

1

TUBING (PUMP TO FILL CHUTE) ..............................................

1


1

—

—

900803

900802

(UH-200B, UH-200) .......................................................................

1

INSTALLATION KIT, RINSE AID PUMP

(INCLUDES ITEMS 1-18)

(UH-100B, UH-100) .......................................................................

1

INSTALLATION KIT, RINSE AID PUMP

(INCLUDES ITEMS 1-9, 15, 16, 18, 20, 21)

149


150

Figure 9.20-

(Standard) Chemical Dispensing Pumps for Low Temp Machine

(UL-100)


(STANDARD)

CHEMICAL DISPENSING PUMPS FOR LOW TEMP MACHINE

(UL-100)

Fig. 9.20

Part

Item No.

No.

10

11

12

13

14

15

16

17

18

8

9

6

7

3

4

1

2

5

108299

322676

100734

106482

106026

107050

102564

110159

111884

108194

108411

112878

112880

0503695

0505483

0503694

112754

0501869

— 900801


MOTOR, PUMP DRIVE.................................................................

3

BRACKET, 3 POSITION CHEMICAL PUMP ..............................

1

BOLT, 1/4-20 X 1/2" HEX HD .......................................................

2

WASHER, LOCK 1/4" ....................................................................

2

WASHER, FLAT 1/4" .....................................................................

2

GROMMET ....................................................................................

3

SCREW, 8-32 X 3/8" ROUND HD ................................................

6

SCREW, 8-32 X 5/8" ROUND HD ................................................

6

PUMP ASSEMBLY (DOES NOT INCLUDE ITEM 10) ...............

3

TUBE, 3/16" ID X 3/8" OD ............................................................

3

CLAMP, HOSE ...............................................................................

6


3

TUBING (PUMP TO CHUTE) ......................................................

3

LABEL, DETERGENT ..................................................................

1

LABEL, RINSE AID .......................................................................

1

LABEL, SANITIZER .....................................................................

1

TUBE, PICK-UP .............................................................................

3

STRAINER .....................................................................................

3

(UL-100) .........................................................................................

1

INSTALLATION KIT, THREE PUMP

DETERGENT, SANITZER, RINSE AID

(INCLUDES ITEMS 1-18)

151


1

152

3

Figure 9.21-

Dishracks, Line Strainer, PRV

(All Models)

4

2


DISHRACKS, LINE STRAINER, AND PRV

(ALL MODELS)

Fig. 9.21

Part

Item No.

No.

1

2

3

4

101273

101285

104421

108265


DISHRACK, FLAT BOTTOM .......................................................

1

DISHRACK, PEG ...........................................................................

1

STRAINER, LINE 1/2" (UH-200B, UH-200 ONLY) ...................

1

VALVE, PRESSURE REDUCING (PRV) (OPTIONAL) 1/2" ......

A/R

(UH-200B, UH-200)

153


This Page

Intentionally

Left

Blank

154

Part 10: ELECTRICAL SCHEMATICS

PART 10:

ELECTRICAL

SCHEMATICS

In This Part—

• Electrical Schematics by Model and Phase

155

Part 10: ELECTRICAL SCHEMATICS

This Page

Intentionally

Left

Blank

156

XFMR

XFMR

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 ELECTRIC CODES.



BC

BC1

CB

DP

DRP

SS

TCB

TCR

TCW

WC

WC1

DSS

DV

EWS

FV

HC

HC1

HLTH

RP

DIAGRAM STATE

POWER OFF

TANK EMPTY

DOOR CLOSED

END OF CYCLE

BOOSTER CONTACTOR

BOOSTER CONTACTS

CIRCUIT BREAKER

DETERGENT PUMP (OPTIONAL)

DRAIN PUMP

DOOR SAFETY SWITCH

DRAIN VALVE

EXTENDED WASH SWITCH

RINSE/FILL VALVE

HEATER CONTACTOR (COIL)

HEATER CONTACTS

HIGH LIMIT TANK HEATER

RINSE AID PUMP (OPTIONAL)

SERVICE SWITCH

BOOSTER THERMISTOR

RINSE THERMISTOR

WASH TANK THEMISTOR

WASH MOTOR CONTACTOR

WASH MOTOR CONTACTS

L1 TO N = 120V

L2 TO N = 120V

L1 TO L2 = 208-240V

L2 TO L3 = 208-240V

L1 TO L3 = 208-240V

BOOSTER HEAT

27

35

34

29

HLTH

WASH

TANK HEAT

MOTOR

31

WC1

32

WC1

28

HC1

30

HC1

BC1

BC1

BC1

TO CUSTOMERS DISCONNECT SWITCH

PER LOCAL ELECTRICAL CODE

208-240/60/3 5 WIRE

L1 L2 L3 N

GND

CB

T3

17

N/C

CN7

COM

LOW

MIDDLE

LIMIT

T4 18

N/C

CN5

WASH PUMP

20

FILL/RINSE

DSS

UH-100B

THREE PHASE

A701627

33

BSTR

FILL

SS

23

ON

1

WC

23

FV

2

2

OVERLAY

POWER

DRAIN

54

DRP

CN2

DV

CYCLE START

HOT

CN6

1

DETERG 24

OPTIONAL

DP

EXTENDED WASH

2

RINSE AID

25

RP

PRIME

SANI

CN4

POWER

CN1

START

EXT WASH

CN3

TIMER CONTROL BOARD

FUSED

HOT

T1

NEUTRAL

T2

FILL DET SANI RINSE

TIME SELECT BOARD

2

N/C

13

CN5

CN1

T3

FUSED HOT

T2

HOT

1

CN2

(JUMPERED)

TEMP/PRESS

DISPLAY BOARD

2

T1

NEUTRAL

WASH

CN4

N/C

N/C

BSTR

4

HLTH

6

HC

5

BC

RINSE

CN3

WASH

BSTR

8

7

TCR

9

TCW

11

TCB

10

12

2

1

BC

BC1

CB

DP

DRP

DSS

DV

EWS

FV

HC

HC1

HLTH

PT

RP

SS

TCB

TCR

TCW

WC

WC1

BOOSTER CONTACTOR

BOOSTER CONTACTS

CIRCUIT BREAKER

DETERGENT PUMP (OPTIONAL)

DRAIN PUMP

DOOR SAFETY SWITCH

DRAIN VALVE

EXTENDED WASH SWITCH

RINSE/FILL VALVE

HEATER CONTACTOR (COIL)

HEATER CONTACTS

HIGH LIMIT TANK HEATER

PRESSURE TRANSDUCER

RINSE AID PUMP (OPTIONAL)

SERVICE SWITCH

BOOSTER THERMISTOR

RINSE THERMISTOR

WASH TANK THEMISTOR

WASH MOTOR CONTACTOR

WASH MOTOR CONTACTS

L1 TO N = 120V

L2 TO N = 120V

L1 TO L2 = 208-240V

L2 TO L3 = 208-240V

L1 TO L3 = 208-240V

BOOSTER HEAT

29

HLTH

27

35

34

TANK HEAT

WASH

MOTOR

WC1

31

32

WC1

TO CUSTOMERS DISCONNECT SWITCH

PER LOCAL ELECTRICAL CODE

208-240/60/3 5 WIRE

L1 L2 L3 N

GND

BC1

BC1

BC1

28

HC1

30

HC1

CB

GND

T3

17

DIAGRAM STATE

POWER OFF

TANK EMPTY

DOOR CLOSED

END OF CYCLE

WATER LEVEL

PROBES

15

14

16

CN7

COM

LOW

MIDDLE

LIMIT

T4 18

N/C

CN5

WASH PUMP

20

FILL/RINSE

OVERLAY

POWER

DRAIN

54

CN2

DSS

33

BSTR

FILL

SS

23

ON

1

WC

23

FV

DRP

UH-200B

THREE PHASE

A701628

2

2

DV

CYCLE START

EXTENDED WASH

HOT

CN6

1

DETERG 24

RINSE AID

25

OPTIONAL

DP

RP

2

PRIME

SANI

CN4

POWER

CN

START

EXT WASH

CN3

TIMER CONTROL BOARD

FUSED

HOT

T1

NEUTRAL

T2

FILL DET SANI RINSE

TIME SELECT BOARD

2

WASH

RINSE

PT

13 1

CN5

CN

T2

T3

FUSED HOT

HOT

CN2

TEMP/PRESS

DISPLAY BOARD

2

T1

NEUTRAL

WASH

CN4

N/C

N/C

BSTR

4

HLTH

6

HC

5

BC

RINSE

CN3

WASH

8

7

TCR

9

TCW

11

TCB

10

BSTR 12

2

No results