773-179

This premium air pressure switch is a vital safety component for residential gas furnaces and HVAC systems. Functioning as an air proving switch, it monitors the pressure differential within the inducer blower assembly to ensure the exhaust system is clear and venting properly before ignition. Designed for multi-stage heating equipment, this dual-point switch helps maintain optimal furnace performance and prevents the unit from operating under unsafe conditions like blocked vents or mechanical failures. Whether you are performing routine maintenance or a critical repair, this pressure sensor ensures your heating system meets strict safety standards for air circulation and combustion.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Gas furnaces, residential HVAC systems, multi-stage heating units, and inducer motor air proving applications.
Specifications: Dual pressure setpoints: 0.35" WC and 0.85" WC; monitors draft and venting pressure.