Lochinvar & A.O. Smith 100109897 Gas Valve

The Lochinvar & A.O. Smith 100109897 Gas Valve is a critical OEM replacement component designed specifically for natural gas water heaters and boiler systems. As a technician, you know that precise gas pressure regulation is non-negotiable for maintaining combustion efficiency and equipment safety. This natural gas control valve is engineered to manage manifold pressure effectively, ensuring your HVACR system operates within the manufacturer's specified tolerances (typically 4.0" W.C. for natural gas applications). This factory-spec replacement gas valve provides the exact fitment required to restore your burner assembly to peak performance without the headaches caused by aftermarket universal parts.

Key Benefits:

• Direct OEM Compatibility: Specifically designed for Lochinvar and A.O. Smith units, ensuring seamless integration with existing burner tubes and pilot assemblies.
• Precise Pressure Regulation: Maintains consistent gas flow control to stabilize the flame and prevent common combustion issues like sooting or erratic cycling.
• Rigorous Safety Standards: Built to handle the specific demands of high-recovery residential and commercial water heating systems.
• Contractor-Grade Durability: Robust construction minimizes the risk of internal leakage and mechanical fouling in natural gas systems.

Common Questions:

Is the 100109897 gas valve compatible with propane units?
No, this specific part number is strictly a natural gas control valve. Using it in a propane (LP) application is unsafe and will result in improper manifold pressure.

How do I confirm this is the right replacement for my water heater?
Verify your unit's model and serial number on the data plate. This HVAC replacement part is a direct match for various A.O. Smith and Lochinvar models requiring this specific OEM gas train configuration.

What tools are needed for installing this gas valve?
A standard professional kit including a pipe wrench, 7/16-inch and 3/8-inch open-end wrenches for the pilot and thermocouple lines, and high-quality gas-rated thread sealant is required.

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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.