773-337

Ensure the safety and efficiency of your heating system with this premium air pressure switch. Designed as an air-proving safety device, this switch monitors the negative pressure generated by the draft inducer motor to verify proper airflow and venting before allowing the furnace ignition sequence to begin. Featuring a precise 0.51" WC setpoint and a reliable SPST (Single Pole Single Throw) electrical configuration, this component is essential for preventing hazardous operation due to blocked exhaust flues or inducer blower failure. If your HVAC unit is failing to ignite or experiencing intermittent shutdowns, this high-quality replacement part is the ideal solution for restoring dependable performance to your gas furnace.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Used in forced-air gas furnaces and HVAC units as a safety limit to monitor combustion air and venting pressure.
Specifications: Setpoint: 0.51" WC (Water Column); Switch Logic: SPST (Single Pole Single Throw); Function: Air Proving and Draft Verification