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Pressure and temperature specifications

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Refer to A/C refrigerant system pressures and temperatures, checking  and PRESSURE AND TEMPERATURE SPECIFICATIONS  for component identification.

REFRIGERANT PRESSURE AND TEMPERATURE SPECIFICATIONS

Component Refrigerant state Approximate pressure (bar/psi) Approximate temperature
1 - Evaporator, inlet to outlet Vapor 1.2 bar (17.4 psi) (1) -7 °C (19 °F) (2)
2 - Compressor, low-pressure side Gas 1.2 bar (17.4 psi) -1 °C (30 °F)
3 - Compressor, low-pressure side Gas 1.2 bar (17.4 psi) -1 °C (30 °F)
4 - Compressor, high-pressure side Gas 14 bar (203 psi) 65 °C (149 °F)
5 - Condenser Gas
Vapor
Liquid
14 bar (203 psi) 55 °C (131 °F) at outlet
6 - Receiver drier Liquid 14 bar (203 psi) 55 °C (131 °F)
7 - Sight glass (if equipped) Liquid 14 bar (203 psi) 55 °C (131 °F)
8 - Service valve, high -pressure Liquid 14 bar (203 psi) 55 °C (131 °F)
9 - Expansion valve Liquid, turns to vapor inlet: 14 bar (203 psi) inlet: inlet: 55 °C (131 °F)
Liquid, turns to vapor outlet: 1.2 bar(17.4 psi) outlet: -7 °C (19 °F)
(1) This pressure is maintained in the refrigerant system by the variable displacement compressor despite changing conditions and varying engine speeds (RPM).

(2) This temperature is maintained in the refrigerant system by the variable displacement compressor despite changing conditions and varying engine speeds (RPM).