E 150 1/2 Ton Van V6-4.2L VIN 2 (1997)
High Pressure Safety Valve HVAC: Description and Operation
A/C High Pressure Safety Valve
The A/C compressor pressure relief valve is located on the compressor discharge line as part of the A/C pressure cut-off switch. The A/C compressor
pressure relief valve is used to prevent damage to the A/C compressor from extreme pressure conditions by momentarily opening to vent refrigerant
vapor.
