they require manual calibration

Professionals should verify the 1/2-inch shaft diameter and 1

adhering to standard safety protocols for forced-air systems

ensuring field-level flexibility during commissioning

High-Flow Capacity: The 1-inch NPT connections support higher BTU demands in commercial heating equipment

Lochinvar & A.O. Smith 100111891 Gas Valve 323269-701 they require manual calibrationThe Lochinvar & A. O. Smith 100111891 Gas Valve is a critical OEM replacement part engineered for high efficiency natural gas commercial water heaters and boilers. This K Series gas control valve is a direct replacement for obsolete part number 9007295005 and is essential for maintaining precise manifold pressure and air gas mixtures within the combustion chamber. Designed for compatibility with the Lochinvar BTH series (including BTH 400 and BTH 500