Daikin-McQuay 735001628 Mechanical Low Pressure Switch

The Daikin-McQuay 735001628 Mechanical Low-Pressure Switch is an essential part that is used for measuring the pressure of the refrigerant in HVAC systems. Located on the suction side of a compressor, this switch measures low pressure that may occur because of leakage or other problems in the system. It closes when the pressure reduces to a certain level, which is between 20 to 30 psi and turns on the switch that informs the control board to stop the compressor. Low pressure switch is mainly used in air conditioning and refrigeration equipment to control the operation and safety of the equipment.