773-212

Ensure your heating system operates safely and efficiently with this premium 2-stage air pressure switch. Designed for high-performance residential furnaces, this air proving switch monitors the draft inducer motor's airflow to guarantee proper venting before the ignition process begins. If your furnace is experiencing frequent cycling, ignition failure, or pressure switch lockout codes, this dual-stage sensor is an essential replacement part to restore reliable operation. It features two distinct pressure thresholds to accommodate varying fan speeds, providing precise safety monitoring and system diagnostics for multi-stage heating equipment.
Type: Air Pressure Switch
Size: Standard
Application: Used in multi-stage residential gas furnaces and HVAC heating systems for air proving and safety sequence verification.
Specifications: Two-stage operation; Low-stage setpoint: 0.20" WC; High-stage setpoint: 1.32" WC; monitors air pressure differential for draft inducer fan verification.