773-231

The Rheem Pressure Switch is a critical safety component designed for high-efficiency gas furnaces and HVAC heating systems. Often referred to as an air proving switch, this part monitors the pressure differential created by the induced draft blower to ensure proper venting and combustion airflow. Specifically rated at -1.50" WC (Water Column), this switch prevents the heating cycle from continuing if it detects an obstruction in the flue or a failure in the venting motor, protecting your home from potential safety hazards. This replacement pressure switch is essential for restoring furnace operation when the system fails to ignite due to pressure-related faults. It is engineered for precision and reliability in demanding residential heating applications.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Gas furnaces, induced draft systems, and HVAC heating units requiring air proving safety verification.
Specifications: Set point: -1.50" WC (Water Column); functions as a safety interlock for combustion air monitoring.