773-374

Ensure your HVAC system operates safely and efficiently with this high-quality Air Pressure Switch. Designed as a critical safety component for gas-fired furnaces and air handling units, this air proving switch monitors the draft created by the inducer motor. If the pressure is insufficient to safely exhaust combustion gases, the switch prevents the ignition sequence, protecting your home or facility from potential hazards. Featuring a precise 0.50" WC set point and a three-terminal configuration, this replacement part is essential for resolving common furnace startup issues and pressure switch-related fault codes. Built for durability and reliable performance, it is a vital component for maintaining optimal airflow and system integrity in residential and commercial heating equipment.
Type: Air Pressure Switch
Size: Standard
Application: Commonly used in gas-fired furnaces, air handlers, and HVAC draft induction systems to verify proper venting and airflow before ignition.
Specifications: 0.50" WC (Water Column) pressure trip point, three-terminal electrical connection, air proving functionality.