Lochinvar & A.O. Smith 100167774 Control Board 326010-701 the specific synthetic rubber compound

the specific synthetic rubber compound used in this diaphragm is selected for its resistance to common environmental contaminants found in mechanical rooms

Compatible with voltages ranging from 24 to 277 VAC

Can I use this 550003105 assembly for a Natural Gas boiler

Designed for low-pressure environments

60Hz natural draft gas appliances using intermittent or standing pilot ignition

Lochinvar & A.O. Smith 100167774 Control Board 326010-701 the specific synthetic rubber compoundThe Lochinvar & A. O. Smith 100167774 Control Board is a critical OEM replacement part designed specifically for the Lochinvar Knight XL KBN399 series heating boilers. As an integrated main control board, it manages the entire sequence of operation, from initial ignition control to flame sensing and blower motor timing. This board is engineered to interface seamlessly with commercial water heaters and high efficiency boilers, ensuring precise water