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PAGE 622
REFERENCE
INFORMATION
HOW A/CWORKS
Air conditioner components are connected
together to illustrate system operation. The
components shown are not to scale. The
refrigerant and refrigerant oil are clear in color
and not visible in this drawing; however, we've
attempted to suggest temperature variants
through the use of values of gray in the pipeline.
The small arrows inside the components
and connecting hoses show the direction of
refrigerant flow (refrigerant circuit).
TYPICAL PLUMBING SCHEMATIC
LOWSIDE HIGH SIDE
WARM
INLET
AIR
COOL
OUTSIDE
AIR FLOW
HEATED
OUTSIDE
AIR FLOW
COOL
AIR TO
THE CAB
#12 Hose
Gas
17-30 PSI
#6 Hose
Liquid
#8 Hose
Gas
#8 Hose Gas
300 PSI
#8 Hose Gas
#6 Hose Liquid 135°
#8 hose
Liquid 200°
Thermostat
High
Pressure
Liquid
Metered
Refrigerant
Cold,
Low Pressure
Gas
Low Pressure Gas
(suction side)
Hot High
Pressure Gas
Receiver
Drier
Expansion
Valve
Evaporator
Condenser
Compressor