773-420

This premium air pressure switch is a vital safety component designed for Rheem and Ruud gas furnaces and HVAC systems. As an air-proving switch, its primary function is to monitor the pressure generated by the draft inducer motor, ensuring that combustion gases are being properly vented through the flue. If the system detects insufficient airflow or a blocked vent, this switch prevents the furnace from igniting, protecting your home from potential safety hazards. This specific dual-sensing switch is calibrated to precise water column (WC) measurements, making it an essential replacement part for restoring the reliable operation and efficiency of your heating system. Whether you are performing routine maintenance or troubleshooting a furnace that won't stay lit, this high-quality pressure switch ensures your HVAC unit meets manufacturer safety standards.
Type: Air Pressure Switch
Size: Small
Application: Used in residential gas furnaces and HVAC heating systems to monitor inducer motor draft and ensure proper venting of combustion air.
Specifications: Dual-stage pressure settings: -1.60" WC and -0.70" WC; compatible with various forced-air heating applications requiring precise air-proving measurements.