pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

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A/C High Pressure Cut-Out Switch|Page 781 > < A/C Compressor High Pressure Cut-Off Switch|Page 778

Bonneville V6-3800 3.8L VIN L SFI (1995)

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Refrigerant Pressure Sensor / Switch: Description and Operation
A/C High Pressure Cut-Out Switch

HR-6 Compressor

DESCRIPTION    

The high-side, high pressure cut-off switch in the rear head of the compressor is a protective device intended to prevent excessive compressor head
pressures and reduce the chance of refrigerant escape through a safety relief valve.

OPERATION    

Normally closed, this switch will open the circuit at a high-side pressure of approximately 3000 kPa (430 psi +/- 20 psi) and reclose the circuit at
approximately 1370 kPa (200 psi +/- 50 psi).

A/C High Pressure Cut-Out Switch|Page 781 > < A/C Compressor High Pressure Cut-Off Switch|Page 778