773-283

Ensure the safe and efficient operation of your heating system with this high-quality 2-stage air pressure switch. Designed for residential gas furnaces, this air proving switch monitors the draft pressure generated by the inducer motor to verify that flue gases are being properly exhausted. As a critical safety component, it prevents the furnace from firing if a venting obstruction or mechanical failure is detected. This dual-setting switch is specifically engineered for two-stage heating units, accurately sensing water column pressure levels to maintain peak performance. Ideal for HVAC repairs and routine maintenance, this switch provides the reliability needed for consistent indoor comfort and system protection.
Type: Air Pressure Switch
Size: Small
Application: Used in high-efficiency and two-stage gas furnaces to monitor inducer motor draft and ensure safe venting conditions before ignition.
Specifications: Dual-stage pressure sensing; Setpoints: -0.60" WC and -1.40" WC; Air proving safety-critical operation.