773-146

Ensure the safe and efficient operation of your heating system with this premium York Pressure Switch. This air proving switch is a vital safety component in residential gas furnaces, designed to monitor the pressure differential created by the draft inducer motor. By verifying that flue gases are being properly exhausted before allowing the ignition sequence to begin, this switch prevents dangerous operation under restricted venting conditions. With a precise factory set point of -0.20" WC, this reliable sensor is an essential replacement part for HVAC maintenance and repair, helping to restore furnace functionality and maintain home safety.
Type: Air Pressure Switch
Size: Standard
Application: Gas-fired residential furnaces and HVAC heating systems for monitoring inducer motor performance and flue venting safety.
Specifications: Pressure Rating: -0.20" WC; Function: Air Proving / Safety Interlock; Circuitry: Normally Open