Lochinvar & A.O. Smith 100073258 Burner Assembly 319848-301 The timing logic is factory-set

The timing logic is factory-set with a 15-second pre-purge (15sPP) to clear the combustion chamber and a 10-second trial-for-ignition (10sTFI)

acidic condensate can back up into the pressure switch if the furnace is not pitched correctly or if the drain trap is blocked

and 31999C3

The Maxitrol 325-9L-2 is a certified line pressure regulator designed to handle 2 PSI systems

the MCP-8031-3003 is a "no bracket" model

Lochinvar & A.O. Smith 100073258 Burner Assembly 319848-301 The timing logic is factory-setThe Lochinvar & A. O. Smith 100073258 Burner Assembly is a precision engineered genuine OEM replacement part essential for maintaining the combustion integrity of high efficiency gas fired systems. This industrial burner assembly is specifically designed for integration with Lochinvar Copper Fin II (CF300 750) water heaters and ER150 400 residential pool heaters. By ensuring a precise fuel to air mixture, this component facilitates optimal thermal