This Lennox furnace limit switch prevents thermal stress on the heat exchanger and ensures the blower assembly is functioning within safe operational parameters

it ensures optimal static pressure and airflow across coils in York

the AMI series is installed directly into the liquid line

clogged vent piping

As many of you know

Armstrong Fluid Technology 182212-669 Pump Freon This Lennox furnace limit switchUpgrade your hydronic system with the Armstrong Fluid Technology 182212 669 Pump, a premier E33. 2 high efficiency circulator designed for superior performance in commercial and large residential applications. This 2 5 HP cast iron pump operates at 3300 RPM on a 120V single phase motor, providing a robust maximum flow rate of 143 GPM and up to 26 feet of head. As a direct replacement for 180210 669, it features an advanced maintenance free "dry motor"