Rated for 250Vac and 125Vdc

500Vac secondary voltage and a mid-point ground configuration

Critical for maintaining pressure vessel integrity in steam and hydronic HVAC systems

which is critical for opening the valve during high-vacuum evacuation or in the event of a power failure to prevent system downtime

Lochinvar & A.O. Smith 100167770 Control Board 320735-701 Rated for 250Vac and 125VdcThe Lochinvar & A. O. Smith 100167770 Control Board is a critical integrated control board engineered for high efficiency commercial gas water heaters and condensing boilers. As an OEM replacement control module, it manages the complex sequence of operations for Lochinvar Knight and A. O. Smith Cyclone series units. This HVAC control board interfaces directly with the blower motor, gas valve, and spark igniter to ensure precise combustion and thermal