773-035

This premium air pressure switch is a vital safety component for gas furnaces and high-efficiency heating systems. Designed to monitor the airflow within the draft inducer housing, this air proving switch ensures that the combustion blower is operating at the correct velocity before allowing the ignition process to begin. Rated for a 1.0" WC (Water Column) set point and calibrated for elevations from sea level up to 4,500 feet, it helps prevent the furnace from operating under unsafe venting conditions. If your heating system is failing to ignite or experiencing intermittent shut-offs, this replacement pressure switch provides the reliable performance needed to restore safe and efficient operation to your HVAC equipment.
Type: Air Pressure Switch
Size: Standard
Application: Gas-fired forced air furnaces, high-efficiency residential heating systems, and draft inducer motor assemblies.
Specifications: 1.0" WC (Water Column) pressure rating, calibrated for altitudes between 0 and 4500 feet, air proving safety function.