773-098

This professional-grade air pressure switch is a vital safety component for residential and commercial gas furnaces. Designed as an air-proving sensor, it monitors the negative pressure generated by the draft inducer motor to ensure proper venting and airflow before the ignition process begins. By accurately sensing a 1.29" WC threshold, this switch prevents the furnace from operating under unsafe conditions, such as a blocked flue or a failing inducer fan. A high-quality replacement part, it is essential for restoring the reliability and safety of your HVAC system's combustion cycle. Durable and precision-engineered, this switch helps maintain optimal heating performance and efficiency throughout the winter season.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Gas furnaces, air handlers, and HVAC heating systems requiring an air-proving safety sensor for induction motor verification.
Specifications: 1.29" WC (Water Column) pressure rating, air-proving functionality, factory-calibrated setpoint.