773-371

This premium air pressure switch is an essential safety component for residential and commercial HVAC systems and gas furnaces. Designed as an air proving switch, it monitors the pressure levels within the draft inducer blower assembly to ensure proper ventilation and exhaust flow. With a calibrated set point of 1.20" WC (Water Column), this sensor prevents the furnace from igniting if it detects insufficient airflow or a blocked vent, protecting your home or building from potential hazards. If your heating system is experiencing ignition failure or intermittent cycling, this durable pressure switch is a reliable solution to restore optimal performance and safety.
Type: Air Pressure Switch
Size: Standard
Application: Used in gas-fired furnaces, air handlers, and HVAC venting systems to prove draft inducer operation and ensure safe exhaust venting.
Specifications: Pressure Rating: 1.20" WC (Water Column); Function: Air Proving/Safety Interlock; Application: HVAC Venting Systems