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—18—
CAPILLARY TUBE
COMPRESSOR
BLOWER
EVAPORATOR COIL
: REFRIGERANT FLOW
CONDENSER COIL
FAN
MOTOR
4.2 PIPING SYSTEM
The following is a brief description of the important components and their function in what is called the refrigeration
system. Reference should made to figure 17 to follow the refrigerating 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
Discharge the refrigerant system using a Freon
TM
Recovery
System. If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting the Freon
TM
.
Leave the valve in place after servicing the system. Do not
vent Freon
TM
into the atmosphere.
Figure 17