2
Contents
General Information
After Sale Support ..................................................................................................... 2
CAUTION .................................................................................................................. 3
Theory of operation ................................................................................................... 4
Cool mode ............................................................................................................ 4
Heat/idle mode...................................................................................................... 5
Troubleshooting
Troubleshooting Chart: Runaway cold ...................................................................... 6
Troubleshooting Chart: Runaway hot ........................................................................ 7
Troubleshooting Chart: Weak cooling ...................................................................... 8
Troubleshooting Chart: Refrigeration pressures..................................................... 10
Replacement
Compressor ............................................................................................................. 11
Fan Motor ................................................................................................................ 13
Filter/dryer ............................................................................................................... 14
Solenoid valve ......................................................................................................... 15
Tank coil assembly (TCA) ....................................................................................... 17
Water regulating valve............................................................................................. 21
Capillary tube........................................................................................................... 23
Refrigeration components (general) ........................................................................ 25
Procedures
Speed check............................................................................................................ 27
Suction Discharge pressure and speed check ........................................................ 28
Condenser maintenance (air cooled & water cooled).............................................. 29
Flushing (closed facility system).............................................................................. 29
Flushing (tap water system) .................................................................................... 30
Flushing (unit off)..................................................................................................... 31
Commercial flushing chemicals ............................................................................... 32
Hot gas valve (Automatic Discharge Relief (ADR)) ................................................ 33
Schrader valves....................................................................................................... 37
Leak test and repair of leak ................................................................................ 38
Solenoid coil test ..................................................................................................... 39
Solenoid valve rebuild ............................................................................................. 40
Tank Coil Assembly (TCA) failure and repair ........................................................ 42
To Next Page
Loading...
