B3000 DS Cab Plus 2WD V6-3.0L OHV (2001)
High Pressure Safety Valve HVAC: Description and Operation
An A/C compressor pressure relief valve is incorporated in the manifold and tube assembly to:
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Relieve unusually high refrigerant system discharge pressure buildups, (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 after the excessive pressure has been relieved.
