Lochinvar & A.O. Smith 100277784 Impeller 30067439-890 it features a permanent split

it features a permanent split capacitor (PSC) design

Consult the equipment’s electrical rating plate and the NEC for proper application limits

Is this board a direct replacement for the United Technologies 1158-120

Designed to meet strict manufacturer specifications

Can I use this to replace a different wattage heater

Lochinvar & A.O. Smith 100277784 Impeller 30067439-890 it features a permanent splitThe Lochinvar & A. O. Smith 100277784 Impeller is a critical OEM replacement part engineered for high recovery commercial water heaters and industrial boiler systems. As the professional grade successor to the legacy 100133556 part number, this centrifugal pump impeller ensures precision fluid dynamics and optimal head pressure within the heat exchanger circuit. Built to withstand the rigorous cycling of hydronic heating equipment, the 100277784