Lochinvar & A.O. Smith 100133618 Pump 321894-706 The integrated sensitivity adjustment screw

The integrated sensitivity adjustment screw allows technicians to fine-tune the setpoint in the field

this unit features a snap-acting SPDT switch that ensures positive electrical contact for burner control or alarm signaling

The RedHat II design allows for flexible mounting in any position

When 480V power is applied

Lochinvar & A.O. Smith 100133618 Pump 321894-706 The integrated sensitivity adjustment screwThe Lochinvar and A. O. Smith 100133618 is a heavy duty 3 4 HP circulator pump engineered for demanding hydronic heating and commercial water heating applications. Specifically designed for high head requirements, this centrifugal pump maintains consistent flow rates across complex piping geometries, ensuring optimal heat transfer within the heat exchanger. This OEM replacement pump is a direct fit for various Lochinvar Knight and Copper Fin models,