Durable Construction: Features an oil-submerged gear train for superior heat dissipation and reduced friction during high-duty cycles

always verify the technical data sheet cross-reference before installation

this motor allows for precise airflow management

By replacing a malfunctioning original unit with this factory-authorized component

Lennox 15P85 Pressure Switch 322838-753 Durable Construction: Features an oil-submergedThe Lennox 15P85 Pressure Switch is a critical safety component designed for precise combustion air pressure monitoring in HVAC systems. Specifically calibrated with a 0. 55" WC set point (Water Column), this OEM replacement part (also identified by part number 105078 01 and 101859 07) ensures that the inducer motor is generating sufficient draft before allowing the ignition sequence to proceed. Engineered for reliability in Lennox gas furnaces, this