773-313

This high-performance air pressure switch is a vital safety component for residential and commercial gas-fired furnace systems. Functioning as an air-proving sensor, it monitors the pressure differential created by the draft inducer motor to ensure that exhaust gases are being safely and effectively vented out of the heat exchanger. By verifying proper airflow before allowing the ignition sequence to proceed, this switch prevents hazardous conditions such as the buildup of combustion byproducts. This specific switch is calibrated to a 0.50" WC set point, making it an ideal replacement for failing or faulty sensors that prevent your heating system from cycling correctly. Durable and reliable, it is designed to restore peak performance and safety to your HVAC equipment.
Type: Air Pressure Switch
Size: 0.50" WC
Application: Gas-fired furnaces, HVAC heating systems, and draft inducer motor assemblies.
Specifications: Pressure Set Point: 0.50" WC (Water Column), Function: Air Proving / Safety Interlock