Lochinvar & A.O. Smith 100289391 Pressure Switch 319847-401 providing flexibility across different furnace

providing flexibility across different furnace and air handler platforms

and water-glycol solutions used in commercial and industrial heating systems

Is the DIN plug included with this coil

premium O-rings

Key Benefits Universal Compatibility: Direct OEM replacement for McQuay MT2000 controllers

Lochinvar & A.O. Smith 100289391 Pressure Switch 319847-401 providing flexibility across different furnaceThe Lochinvar & A. O. Smith 100289391 Pressure Switch is a critical safety component engineered for high efficiency condensing water heaters and commercial boilers. Calibrated to a 0. 55" WC (Water Column) set point, this direct replacement for 100294588 monitors the induced draft blower to ensure proper venting of combustion gases. In the field, this switch is the primary defense against blocked flue conditions and inducer motor failure, preventing