2
TABLE OF CONTENTS
Specifications.................................................................................................................... 3
Performance Data............................................................................................................. 3
Component Operation & Testing....................................................................................... 4
Compressors .................................................................................................................... 4
Thermal Overload............................................................................................................. 4
Checking Compressor Efficiency...................................................................................... 5
Fan Motor ......................................................................................................................... 5
System Control Switch...................................................................................................... 5
Run Capacitor...................................................................................................................6
Thermostat ........................................................................................................................ 6
Low Ambient By-Pass Valve.............................................................................................. 8
Sealed Refrigeration System Repairs............................................................................... 8
Hermetic Component Replacement.................................................................................. 9
Special Procedure in the case of Compressor Motor Burn-Out........................................ 9
Rotary Compressor Special Troubleshooting & Service................................................... 10
Refrigerant Charge ........................................................................................................... 10
TROUBLESHOOTING
Troubleshooting SH14J30B-A ........................................................................................... 11
Troubleshooting SH20J30B-A ........................................................................................... 16
WIRING DIAGRAM
SH14J30B-A / SH20J30B-A ............................................................................................. 14
PARTS LIST
SH14J30B-A / SH20J30B-A Model Chassis Parts List...................................................... 18
SH20J30B-A / SH20J30B-A Model Cabinet Parts List ...................................................... 1 9
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