773-015

This premium air pressure switch is a vital safety component designed for high-efficiency gas furnaces and HVAC heating systems. Engineered to monitor the negative pressure created by the draft inducer motor, this air proving switch ensures that combustion gases are being safely exhausted through the vent pipe before allowing the furnace to ignite. If your heating system is experiencing ignition failure or displaying pressure switch circuit errors, this calibrated sensor is a necessary replacement to restore safe and reliable operation. Built with high-quality materials for long-lasting performance, it helps prevent hazardous conditions by verifying proper airflow and venting during the start-up sequence. It is a critical part for maintaining the efficiency and safety of residential forced-air furnaces.
Type: Air Pressure Switch
Size: Standard HVAC Component
Dimensions: Not specified × Not specified × Not specified
Application: Used in residential gas furnaces and HVAC systems to verify proper inducer motor draft and venting safety.
Specifications: Calibrated to -1.12 inch WC (Water Column) pressure set point; functions as an air proving sensor for combustion safety.