773-230

This Rheem Air Pressure Switch is a vital safety component designed for high-efficiency gas furnaces and HVAC systems. As an air proving switch, its primary function is to monitor the negative pressure generated by the draft inducer motor to ensure the venting system is clear and operating correctly before the ignition sequence begins. If your furnace is failing to ignite or shutting down prematurely due to airflow issues, this replacement pressure switch can restore safe and efficient operation. It features precise set points of -1.05" WC and -0.93" WC to ensure the heating cycle only continues when optimal exhaust conditions are met, protecting your home from the buildup of combustion gases.
Type: Air Pressure Switch / Air Proving Switch
Size: Standard
Application: Gas furnaces, residential heating systems, and HVAC units requiring air flow verification through draft inducer motor monitoring.
Specifications: Set Point: -1.05" WC (Inches Water Column); Reset Point: -0.93" WC; Operation: Negative pressure sensing; Configuration: Single pole normally open contacts.