773-343

Ensure the safe and efficient operation of your heating system with this premium Air Pressure Switch. This critical safety component is designed to monitor the airflow and vacuum pressure within your gas furnace or unit heater. Specifically calibrated to a 0.86" WC (Water Column) threshold, it acts as an air proving switch to verify that the inducer motor is properly venting combustion gases before the ignition cycle starts. If your heating system is experiencing ignition failure or frequent cycling, this replacement pressure switch provides a reliable solution to restore peak performance and safety. Engineered for long-lasting durability, it is an essential part for maintaining residential and commercial HVAC systems.
Type: Air Pressure Switch
Size: Small
Application: Used in gas-fired furnaces, unit heaters, and HVAC combustion systems to ensure proper draft and venting safety.
Specifications: Pressure Setting: 0.86" WC (Water Column); Function: Air Proving/Safety Interlock