E 150 V8-4.6L SOHC VIN W (2004)
High Pressure Safety Valve HVAC: Description and Operation
A/C PRESSURE RELIEF VALVE
An A/C pressure relief valve is incorporated in the compressor manifold and tube assembly to:
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relieve unusually high refrigerant system discharge pressure buildups. For specifications regarding operating pressure(s), refer to Specifications.
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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 after the excessive pressure has been relieved.
