K 2500 Suburban 4WD V8-454 7.4L VIN N TBI (1995)
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Refrigerant Pressure Sensor / Switch: Description and Operation
High Pressure Cut-Off Switch
COMPONENTS
The system is also equipped with a high pressure cut off switch. This switch is normally closed, and opens at 2827-3103 kPa (410-450 psi) to
interrupt the voltage to the compressor clutch coil. This will stop the compressor from cycling and prevent the pressure relief valve from discharging
refrigerant and oil.