Allair High Pressure Control Manual A high-pressure switch is connected to the discharge, or “high” side of the system to sense discharge pressure. A pressure switch has two main functions: protection and control.Basic pressure switches can either be for high or low pressure. If the refrigerant discharge pressure builds too high, the switch flips from closed to open, lowering the pressure A high pressure switch. Can be used to turn a compressor off in case of a fan failure or be used as a switch to turn a condenser fan on Compressor Protection (HVAC/Refrigeration): Shuts off the compressor if refrigerant pressure gets too high (due to fan failure, clogged condenser) to prevent burnout and mechanical stress. Cold room and freezer room accessories SKU: P530ME Categories: Fridge/Cold room accessories, Pressure Switches - Allair
