Standardized Mounting: The L56 NEMA frame and 5/8" shaft ensure straightforward installation in most OEM bracketry

Streamlined Diagnostics: Features an integrated test port for "no-leak" pressure readings during routine maintenance and system balancing

and mounting bolt patterns match the factory cabinet specifications exactly

simplifying electrical lead connections

the unit must be mounted with the diaphragm in a vertical plane

Lochinvar & A.O. Smith 100346611 Burner Assembly 326058-757 Standardized Mounting: The L56 NEMAThe Lochinvar & A. O. Smith 100346611 Burner Assembly is a precision engineered OEM replacement part designed for high efficiency hydronic boilers and gas water heaters. As a critical component in the combustion string, this ultra low NOx burner is built to maintain strict emission standards while ensuring a stable, controlled flame pattern. The assembly 100346611 is a direct fit solution for Lochinvar Knight and A. O. Smith residential gas water