systems using supplied connectors

and PA-800 remote probe controllers

the furnace will not fire

ensuring the system triggers accurately at the required flow rates

Can this be used for low-pressure cut-outs

Lennox 80W51 Pressure Switch 320788-702 systems using supplied connectorsThe 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