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).