Description
The Lennox 17V95 Pressure Switch automatically reacts to air pressure variation within combustion and venting sections to confirm proper draft conditions during furnace operation. Calibrated at 0.95″ WC with an operating range of 4500-10000, the switch changes electrical contact status when the required pressure level is reached for ignition sequence continuation. It is connected to inducer assemblies and gas-fired HVAC systems where airflow verification is necessary before burner activation. Pressure-responsive circuit action assists with combustion airflow confirmation, regulates operational sequencing, and prevents ignition under inadequate venting or restricted draft conditions.
