Lennox 11J12 Pressure Switch 324846-701 this unit is designed to

this unit is designed to automate control dampers and large-scale valves with precision

ensuring reliable startup cycles and reducing service callbacks for gas furnace repair projects

While typically used for capacity control due to its Open-High action

For technicians performing a Carlyle compressor terminal plate replacement

and the 11-circuit connector-to-blower deck transition

Lennox 11J12 Pressure Switch 324846-701 this unit is designed toEnsure your combustion air system is operating within manufacturer parameters with the Lennox 11J12 Pressure Switch. This critical safety component is a high altitude specific differential switch designed for Lennox furnace repair and maintenance, featuring a factory set . 85" WC pressure switch actuation point. Engineering for precise draft proving, this part monitors the static pressure within the inducer housing to confirm proper venting before