Lochinvar & A.O. Smith 100109891 Gas Valve 321894-706 making it a versatile stock

making it a versatile stock item for older furnace repairs and specialized heating equipment

meaning the valve will default to the open position upon loss of control air pressure

Common Questions & Answers Is this board a direct replacement for the S1-331-09171-000

this shaft supports variable speed operation

Lochinvar & A.O. Smith 100109891 Gas Valve 321894-706 making it a versatile stockThe Lochinvar & A. O. Smith 100109891 Gas Valve is a critical OEM replacement part designed for high recovery commercial water heaters and boilers. Engineered for precision, this 24V natural gas valve operates with a 3. 5" WC manifold pressure to ensure stable combustion and optimal thermal efficiency. Built with a rugged 3 4" NPT connection, it is a direct substitute for legacy part numbers such as 9004497205 and 192015, providing a reliable solution