Lochinvar & A.O. Smith 100109372 Gas Valve

The Lochinvar & A.O. Smith 100109372 Gas Valve is a critical OEM replacement part designed for high-efficiency liquid propane (LP) heating systems. This 24v gas control valve features a 1/2" inlet/outlet connection and is factory-set to a 10" WC (Water Column) manifold pressure, ensuring precise fuel regulation for commercial water heaters and boilers. As a veteran-grade component used in Lochinvar Knight and A.O. Smith Cyclone series, it manages the safety shut-off and combustion flow required to maintain optimal thermal efficiency. This gas solenoid valve is engineered to withstand the rigorous duty cycles of industrial HVACR equipment, providing reliable ignition and consistent manifold pressure. Whether you are performing a gas valve replacement or routine boiler maintenance, utilizing this genuine OEM part ensures system compatibility and adheres to the original equipment manufacturer’s performance specifications. Proper installation by a licensed technician is required to verify gas pressure settings and ensure safe exhaust venting.

• Precise LP Regulation: Factory-calibrated to 10" WC for stable burner operation in propane-fired units.
• OEM Integrity: Direct replacement for Lochinvar 100109372 and A.O. Smith 100109372, ensuring electrical and mechanical fit.
• Durable Construction: Built for 24v control circuits, providing robust performance in demanding HVACR environments.
• Optimized Safety: Integrated redundant solenoid design for reliable gas flow interruption during system faults.

Is the 100109372 valve compatible with Natural Gas?
No, this specific model is configured for Liquid Propane (LP) only and is preset to 10" WC. Using it with natural gas without a certified conversion kit can cause hazardous combustion conditions.

What are the symptoms of a failing Lochinvar gas valve?
Common indicators include ignition failure, intermittent burner cycles, or a "no flame" error code on the control board. Always test for 24v at the coil before replacing the 100109372.

Do I need to adjust the pressure after installation?
While factory-preset, a technician must always verify the manifold pressure using a manometer to match the specific requirements listed on the appliance rating plate.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.