Service manual

Table of Contents
ii
Table of Contents (cont.)
Section 6 - Before Requesting Service
Troubleshooting Guide......................................................................................................................................6-1
Section 7 - Electrical Specifications
Main Power Switch ........................................................................................................................................... 7-1
Temperature Control........................................................................................................................................ 7-1
Light Switch....................................................................................................................................................... 7-2
Defrost Terminator / Fan Delay Switch - Freezers ........................................................................................ 7-2
Defrost Timer - Freezers................................................................................................................................... 7-3
Defrost Heater Element - Freezers .................................................................................................................. 7-3
Evaporator Drain Pan Heater - Freezers........................................................................................................7-4
Anti-Condensate Door Heaters........................................................................................................................ 7-4
Compressor Overload Protector...................................................................................................................... 7-5
Compressor Start Relay.................................................................................................................................... 7-5
Compressor Windings....................................................................................................................................... 7-6
Wiring Diagrams............................................................................................................................................... 7-7
Section 8 - Refrigeration
Temperature/Pressure/Refrigerant Charge Charts - Refrigerators/Freezers............................................. 8-1
Recovery/Evacuation and Recharging ............................................................................................................8-2
Charging Procedures ........................................................................................................................................ 8-3
System Contamination Clean-up..................................................................................................................... 8-4
Refrigeration Re-Use Policy .............................................................................................................................8-6
Section 9 Replacement Procedures
Evaporator Fan Assembly – 1 Section Cabinets ............................................................................................ 9-1
Light Switch....................................................................................................................................................... 9-3
Evaporator Fan Assembly – 2 & 3 Section Cabinets .....................................................................................9-4
Temperature Control........................................................................................................................................ 9-5
Defrost Heater Element - Freezers .................................................................................................................. 9-7
Digital Thermometer Display and Probe........................................................................................................ 9-8
Digital Thermometer Transformer.................................................................................................................9-10
Door Handle – Solid Doors..............................................................................................................................9-11
Door Handle – Glass Doors .............................................................................................................................9-12
Door Hinge – Solid Doors................................................................................................................................9-12
Door Gasket – Solid Doors ..............................................................................................................................9-13
Door Gasket – Glass Doors..............................................................................................................................9-14
Vinyl Breaker Strips ........................................................................................................................................9-15
Anti-Condensate Door Heaters.......................................................................................................................9-16
Defrost Terminator / Fan Delay Switch - Freezers .......................................................................................9-16