773-082

This premium 2-stage air pressure switch is an essential safety component for high-efficiency gas furnaces. Designed to monitor the draft created by the inducer fan, this dual-stage switch ensures that the heating system is venting exhaust gases safely and efficiently before allowing the ignition process to proceed. It features two precision-calibrated setpoints— -0.67" WC and -1.15" WC—specifically engineered for multi-stage heating equipment. If your furnace is failing to ignite, cycling incorrectly, or displaying pressure-related error codes, replacing a faulty air proving switch can restore reliable performance and ensure your HVAC system operates at peak safety standards. Built for durability and accurate sensing, this component is a vital part of a modern residential heating system's combustion safety circuit.
Type: Air Pressure Switch
Size: Small
Application: Designed for use in residential two-stage high-efficiency gas furnaces to verify proper inducer motor draft and venting pressure.
Specifications: Dual-stage pressure settings: -0.67" WC / -1.15" WC; Function: Air proving and combustion safety monitoring; Operation: Diaphragm-actuated sensing.