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Key Benefits for the Contractor Universal Compatibility: Designed for hot water
It is highly recommended to use the OEM Modine 5H0722750001
the 40003916-046 and the 40003916-046/U are functionally and physically identical
The 22W04 is designed to activate the blower circuit
The VT2221G23A020 model is a standard two-wire configuration
Lochinvar & A.O. Smith 100187866 Burner Assembly 340793-762 Key Benefits for the ContractorThe Lochinvar & A. O. Smith 100187866 Burner Assembly is a precise OEM replacement part engineered for high efficiency commercial and residential water heating systems. As a veteran technician knows, maintaining combustion stability is non negotiable for system longevity, and this 10,000 to atmospheric rated assembly ensures the correct fuel to air ratio for clean, consistent ignition. Designed as a direct fit for specific A. O. Smith Cyclone and