Description
The National Comfort Products 14508017 Inducer Pressure Switch is a control unit used to sense negative pressure created by the inducer motor during furnace operation. In HVAC systems, it is typically applied in gas furnace assemblies, where it confirms proper draft conditions inside the heat exchanger before ignition is allowed. The switch responds to pressure changes in the inducer housing and send an electrical signal to the control board to permit or stop burner operation. It is mounted within the furnace cabinet and connected to sensing tubing, ensuring safe airflow verification and controlled startup sequence.
