Lochinvar & A.O. Smith 100304140 Control Board 320734-701 which can indicate poor combustion

which can indicate poor combustion or gas leaks

and various oils in process work

Direct OEM Logic: Updated Revision B electrical connection provides a secure interface for modern 120V control circuits

Integrated bracket mount case and quick-connect terminals reduce labor time during panel assembly or field replacement

Is an additional power supply required for the output side

Lochinvar & A.O. Smith 100304140 Control Board 320734-701 which can indicate poor combustionThe Lochinvar & A. O. Smith 100304140 Control Board is a critical main control board designed for high efficiency Knight Fire Tube boilers, specifically the WHB285 and KHB285 models. As a central component of the SMART SYSTEM operating control, this board manages complex hydronic functions, including 10: 1 turndown ratio modulation, blower speeds, and gas valve timing. It effectively processes real time data from water temperature sensors and flame