Lochinvar & A.O. Smith 100111022 VFD Assembly 321142-301 this factory authorized pressure switch

this factory authorized pressure switch features a durable diaphragm and high-grade electrical contacts to eliminate nuisance tripping and reduce recalibration cycles

this 24VAC gas control valve ensures precise 30

To diagnose a suspected failure

Using this on non-compatible units may overload the motor

An overflowing tray typically indicates a worn rear seal or a failing shell bearing on the drive shaft

Lochinvar & A.O. Smith 100111022 VFD Assembly 321142-301 this factory authorized pressure switchThe Lochinvar & A. O. Smith 100111022 VFD Assembly is a high performance variable frequency drive engineered for precise motor speed control in high efficiency commercial water heaters, specifically the Cyclone BTH 400 and BTH 500 series. This OEM replacement part (formerly 9006245005) is vital for modulating the blower motor to match varying load demands, significantly enhancing energy efficiency and reducing operational wear on internal components.