simulating a low-water state

As an HVAC safety switch

High-Pressure Capability: Rated for up to 250 PSIG

when equipped with a factory-approved vent limiting device

Smith Cyclone series heaters where precise thermal expansion protection is non-negotiable for system longevity and job site safety

Fasco A219 Vent Assembly 320788-704 simulating a low-water stateFor high demand HVAC service calls, the Fasco A219 Vent Assembly serves as a direct OEM replacement draft inducer for Lennox furnace models. This 120V centrifugal blower is engineered with a 1 65 HP shaded pole motor, delivering a consistent 3000 RPM to ensure proper flue gas evacuation and pressure switch engagement. Built for reliability in demanding environments, it features thermally protected windings and sleeve bearings for quiet, long term