Lennox 80W51 Pressure Switch 320735-701 provided the tonnage requirements and

provided the tonnage requirements and pressure differentials are within the specified technical limits

this direct spark ignition electrode ensures the system meets precise microamp rectification standards

providing structural durability under heavy inductive motor starts

Direct OEM Compatibility: Eliminates the need for manual wire splicing or terminal crimping

Lennox 80W51 Pressure Switch 320735-701 provided the tonnage requirements andThe Lennox 80W51 Pressure Switch is an essential safety component designed for Lennox furnaces and higher efficiency HVAC systems. This differential pressure switch is factory calibrated to a 0. 55" w. c. set point, ensuring reliable monitoring of the combustion blower and venting pressure. As a genuine OEM Lennox replacement part, this switch precisely detects the negative pressure required to safely initiate the furnace ignition sequence, preventing