Built on a 48 frame with an Open Dripproof (ODP) enclosure

or visible gaps in the metal seams which indicate the integrity of the burner is compromised

What is the maximum control air pressure for the D-3153-7

Standardized Housing: The NEMA 48 frame size and 1/2-inch shaft diameter allow for seamless integration with existing fan blades and mounting brackets

ensure proper oil management and filter-drier replacement

Lochinvar & A.O. Smith 100287090 Gasket 326058-757 Built on a 48 frameThe Lochinvar & A. O. Smith 100287090 Gasket is a critical OEM replacement part designed for high efficiency condensing boilers and water heaters. This 4MM X 121MM OD Burner Gasket provides a high temperature seal between the burner assembly and the combustion chamber, preventing volatile combustion gases from escaping the heat exchanger. Engineered for precise fitment in Lochinvar Knight and A. O. Smith commercial units, including the KHB199, KHB285,