Description
The Amana-Goodman 20197313 SPST Air Pressure Switch is used to monitor negative airflow conditions. It is designed to activate or deactivate control circuits when pressure reaches approximately -0.37 inches of water column, ensuring safe combustion or airflow checking in gas furnaces and related heating equipment. The switch is installed within the burner or inducer assembly of HVAC systems units, where it confirms proper draft or venting before system ignition. It plays a vital role in heating, ventilation, and air conditioning systems by supporting avoiding operation under unsafe airflow conditions.
