Sable V6-3.0L VIN U (1999)
High Pressure Safety Valve HVAC: Description and Operation
A/C High Pressure Safety Valve
An A/C compressor pressure relief valve has been incorporated in the compressor's high pressure discharge manifold to:
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relieve unusually high refrigerant system discharge pressure buildups of 3103 kPa (450 psi) and above.
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prevent damage to the A/C compressor and other system components.
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avoid total refrigerant loss by closing the valve after the excessive pressure has been relieved.
