020-531

This high-performance Air Pressure Switch is a vital safety component for residential and commercial gas furnaces and HVAC systems. Also known as an air-proving switch, it monitors the pressure created by the draft inducer motor to ensure the venting system is clear and operational. By confirming proper airflow before allowing the ignition process to begin, this switch prevents the buildup of dangerous combustion gases. Designed with a Single Pole Single Throw (SPST) configuration and rated for 28VA pilot duty, it provides reliable switching performance to keep your heating equipment running safely. Ideal for replacing faulty sensors that cause furnace startup failures or intermittent shut-offs.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Gas furnaces, HVAC air handling systems, and industrial heating equipment requiring airflow verification for safe ignition.
Specifications: Single Pole Single Throw (SPST) contact arrangement; 28VA Pilot Duty electrical rating; air-proving functionality.