773-382

This dual-port furnace air pressure switch is a critical safety component designed for HVAC heating systems. Functioning as an air proving switch, it monitors the pressure differential created by the inducer motor to ensure that combustion gases are being properly vented before the ignition cycle begins. With a precise 1.45" WC (Water Column) set point, this switch helps prevent the operation of the furnace under unsafe venting conditions. It is a common replacement part for heating units experiencing ignition failure or intermittent shut-offs. Engineered for reliability, this dual-hose connection switch ensures your residential or commercial furnace maintains optimal airflow safety standards.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Used in gas furnaces and HVAC heating systems to verify proper inducer motor operation and flue gas venting.
Specifications: Dual port configuration, 1.45 inch WC (Water Column) trip point, air proving safety functionality.