773-200

This premium furnace air pressure switch is a vital safety mechanism designed for high-efficiency heating systems. Functioning as an air-proving sensor, it monitors the draft created by the inducer motor to ensure proper venting and airflow throughout the heat exchanger. The switch features dual-point calibration at 0.17" WC and 0.55" WC, making it ideal for multi-stage HVAC units. For single-stage furnace models, the system utilizes the high-side setting for consistent operation. Replacing a faulty pressure switch is essential for resolving ignition issues, preventing system lockout, and maintaining the safe performance of your residential heating unit.
Type: Air Pressure Switch
Size: Standard HVAC component
Application: Used in gas-fired residential furnaces and HVAC systems to monitor inducer motor airflow and ensure safe ignition sequences.
Specifications: Dual-range pressure settings: 0.17" WC and 0.55" WC; Compatible with multi-stage and single-stage heating models (high side only for single-stage).