High Pressure Switch

A/C High Pressure Switch:

DESCRIPTION
To prevent excessive compressor head pressures and reduce the chance of refrigerant escape through the pressure relief valve, the system includes an A/C high-pressure cut-out switch. Normally closed, this switch opens when high-side (discharge) pressure reaches 3000 kPa ±137 kPa (430 psi ±20 psi) to de-energize the A/C compressor clutch.