773-074

Ensure your high-efficiency heating system operates safely and effectively with this premium two-stage air pressure switch. Designed for dual-stage gas furnaces and HVAC units, this air proving switch serves as a vital safety mechanism by monitoring the pressure generated by the inducer motor. It is calibrated to detect specific pressure differentials of -0.10" WC and -0.97" WC, ensuring that the combustion process only begins when proper airflow is confirmed and the exhaust vent is clear. A common replacement part for furnaces experiencing ignition failure or intermittent cycling, this pressure sensor helps maintain peak performance and prevents hazardous operating conditions. Built with high-quality materials for long-lasting reliability, it is an essential component for residential forced-air systems requiring a precise dual-action vacuum switch.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Used in two-stage gas furnaces and high-efficiency HVAC systems to monitor draft inducer pressure and ensure safe venting.
Specifications: Dual-stage calibration: -0.10" WC and -0.97" WC; Function: Air proving / Safety cutout; Configuration: Two-stage pressure sensing.