773-255

Ensure your furnace operates safely and efficiently with this high-quality air pressure switch, specifically calibrated to -0.40" WC. As a critical safety component in modern heating systems, this air-proving switch monitors the negative pressure created by the draft inducer motor. It confirms that combustion gases are being properly vented before allowing the ignition sequence to proceed, preventing hazardous conditions. If your HVAC system is experiencing ignition failure or intermittent cycling, replacing a worn or malfunctioning pressure switch is a common and essential repair. Designed for durability and precision, this component is compatible with a wide range of gas-fired furnaces and heating units, helping to restore reliable warmth to your home.
Type: Air Pressure Switch
Size: Standard
Application: Used in residential gas-fired furnaces and HVAC systems to monitor draft inducer blower performance and ensure proper venting of combustion gases.
Specifications: Pressure Setpoint: -0.40" WC (Water Column); Function: Air Proving/Safety Interlock; Type: Diaphragm-actuated