773-176

Ensure the safe and efficient operation of your HVAC system with this high-quality Single Stage Air Pressure Switch. Designed for use in residential forced-air furnaces, this essential air-proving component monitors the pressure differential within the draft inducer motor housing to confirm proper airflow before the ignition sequence begins. If your furnace is failing to ignite or displaying a pressure switch lockout error, this replacement part provides a reliable solution. This dual-port vacuum switch is factory-calibrated to a precise -0.70 inch WC set point, making it critical for maintaining safety standards and preventing the buildup of dangerous combustion gases. Built for durability and precise sensing, it is a vital replacement for single-stage heating systems requiring a two-port configuration.
Type: Air Pressure Switch
Size: Small
Application: Used in single-stage forced-air gas furnaces and HVAC units to prove inducer motor operation and venting safety.
Specifications: Pressure Setting: -0.70" WC, Ports: 2, Switch Type: Single Stage Air Proving, Function: Normally Open