773-235

This high-quality Rheem/Ruud air pressure switch is a vital safety component for residential and commercial gas-fired furnaces and heating systems. Functioning as an air proving switch, it is designed to monitor the negative pressure created by the draft inducer motor, ensuring that the exhaust flue is clear and the fan is operating at the correct speed before allowing the ignition sequence to begin. If your furnace fails to ignite or shuts down prematurely, a malfunctioning vacuum switch may be the culprit. This replacement part is calibrated to a precise -0.35" WC (Water Column) set point to maintain the highest standards of safety and efficiency in your HVAC equipment. Engineered for durability, it helps restore reliable performance to your heating unit during the coldest months.
Type: Air Pressure Switch
Size: Standard compact HVAC component
Application: Gas-fired furnaces, heating systems, and HVAC units requiring air proving safety verification.
Specifications: Set point: -0.35" WC (Water Column); functions as a safety interlock to prove inducer fan operation and venting integrity.