Lochinvar & A.O. Smith 100111040 Controller 326058-758 Always verify your specific boiler

Always verify your specific boiler model before installation

Specifically engineered for the Selectra Series 20 and 21

Superior Connectivity: Screw terminals with 1/4-inch thread depth prevent stripping and ensure low-loss electrical connections

Engineered to withstand the thermal stresses of the burner compartment

preventing fire hazards

Lochinvar & A.O. Smith 100111040 Controller 326058-758 Always verify your specific boilerAs a seasoned technician, you know that a failing control module on a high recovery commercial unit means a complete system shutdown. The Lochinvar & A. O. Smith 100111040 Controller is the precise OEM replacement part engineered for the BTH 199 100 and BTH 199A Cyclone Xi series. This combined controller serves as the central intelligence for your commercial gas water heater, managing critical ignition sequences, flame sensing, and temperature