773-239

This Rheem Air Pressure Switch is a vital safety component designed for high-efficiency furnaces and HVAC systems. As an air proving switch, its primary function is to monitor the negative pressure created by the draft inducer motor, ensuring that combustion gases are being properly vented through the flue. If the system detects a blockage or a failure in the venting process, the switch prevents the furnace from igniting, protecting your home from potential hazards. Rated at -0.60" WC, this vacuum switch is engineered for precise atmospheric sensing and reliable performance. It is an essential replacement part for restoring the sequence of operation in residential heating units where the pressure sensor has failed due to wear, moisture, or electrical issues.
Type: Air Pressure Switch
Application: Used in forced-air furnaces and HVAC heating systems to monitor venting pressure and ensure safe combustion cycles.
Specifications: Pressure Set Point: -0.60" WC; Function: Air Proving/Vacuum Sensing