Specifications

TABLE OF CONTENTS
vii
PART 7: SOLID STATE CIRCUIT BOARDS ................................................. 61
7.1 Introduction ..................................................................................................... 61
7.2 Control Cabinet Layout and Board Function .................................................. 61
7.3 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
7.4 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
7.5 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-200B, UH-200
Model UH-100B, UH-100, UL-100
8.2.3 Fill/Rinse Water Solenoid Valve ......................................................... 93
Model UH-200B, UH-200
Model UH-100B, UH-100, UL-100
8.2.4 Water Level Probe .............................................................................. 95
Model UH-200B, UH-200
8.2.5 Vacuum Breaker ................................................................................. 96
Model UH-200B, UH-200
8.2.6 Pressure Transducer............................................................................ 97
Model UH-200B, UH-200
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