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28 Room Air Conditioner
Troubleshooting Guide
Troubleshooting Guide
Piping System
Figure 31 is a brief description of the important components and their function in what is called the refrigeration
system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.
MOTOR
COMPRESSOR
OIL
(LIQUID REFRIGERANT)
CAPILLARY TUBE
OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH
SUCTION LINE
COOL LOW PRESSURE VAPOR
COOLED
AIR
COMPLETE LIQUID
BOIL OFF POINT
LIQUID
PRESSURE
DROP
ROOM AIR HEAT LOAD
VAPOR INLET
HOT
DISCHARGED
AIR
LIQUID OUTLET
HIGH PRESSURE VAPOR
LIQUID REFRIGERANT
LOW PRESSURE VAPOR
ROOM AIR CONITIONER
EVAPORATOR COILS CONDENSER COILS
CYCLE OF REFRIGERATION
CAPILLARY TUBE
COMPRESSOR
TURBO FAN
CONDENSER COIL
EVAPORATOR COIL
FAN
MOTOR
Figure 31