Lennox 11J12 Pressure Switch Refrigerant allowing for precise airflow adjustment

allowing for precise airflow adjustment across various system demands

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

This manual reset pressure switch features a 1/4 inch sweat connection

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

Lennox 11J12 Pressure Switch Refrigerant allowing for precise airflow adjustmentEnsure 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