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

the Spirax-Sarco FT-30 features an internal balanced-pressure thermostatic air vent made of corrosion-resistant stainless steel

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

and Crest series units

This genuine Lennox replacement part is compatible with various KHA and KHC series units

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