Description
The Advanced Distributor Products 176701651 Pressure Switch ensures safe furnace and boiler operation by confirming proper venting conditions before fuel ignition occurs. It detects airflow through combustion chambers, preventing burner activation when insufficient draft exists. It connects through tubing to blower assemblies where negative pressure signals indicate adequate exhaust evacuation. When airflow meets specified levels, internal contacts close to complete ignition circuits in HVAC systems. Accurate construction maintains accuracy through temperature variations and continuous cycling. This switch provides essential protection against hazardous combustion gas accumulation by verifying ventilation adequacy before each heating cycle begins.
