Lennox 11J12 Pressure Switch Refrigerant Avoid caustic chemicals that can

Avoid caustic chemicals that can degrade the aluminum mesh and compromise the filtration integrity

17-6" WC adjustment range to accommodate various duct pressures and blower configurations

the 100110220 is the official replacement kit for the legacy 9005019105 part number

the Robertshaw 5225-207 auto reset ensures operational safety without the need for manual intervention once the system cools approximately 25°F below the trip point

Dual Voltage Versatility: Configured for 208/230VAC applications commonly found in industrial mechanical rooms

Lennox 11J12 Pressure Switch Refrigerant Avoid caustic chemicals that canEnsure 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