Lennox 11J12 Pressure Switch 324846-701 While typically used for capacity

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

55" WC threshold while checking for electrical continuity across the terminals when the set point is achieved

and Crest series units

Efficient Troubleshooting: Durable SPST contacts allow for quick continuity testing during routine preventative maintenance

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

Lennox 11J12 Pressure Switch 324846-701 While typically used for capacityEnsure 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