Lochinvar & A.O. Smith 100327116 Gas Valve

The Lochinvar & A.O. Smith 100327116 Gas Valve is a critical OEM replacement part designed for high-efficiency commercial boilers and water heating systems. This 24V gas valve is factory-calibrated for natural gas (NAT) applications, maintaining a precise 2.7" WC manifold pressure to ensure stable combustion and optimal thermal efficiency. Featuring a standard 3/4" NPT inlet and outlet, this valve provides the high flow rates required by high-BTU appliances. As a professional-grade component, the 100327116 is the direct engineering successor for legacy part numbers 100208611 and 100170430. For technicians troubleshooting ignition failure or GV/Relay Fail lockout codes, this valve includes the necessary terminal connections for seamless integration with the SMART SYSTEM control board. Its robust solenoid design ensures reliable gas flow regulation, preventing common performance drops in demanding HVACR environments.

• Direct OEM Compatibility: Engineered as the exact replacement for 100208611 and 100170430, ensuring zero-clearance fitment.
• Precise Pressure Regulation: Fixed 2.7" WC setting provides consistent natural gas delivery for stable flame signals.
• Standardized Heavy-Duty Ports: 3/4" NPT threading allows for straightforward installation into existing gas manifolds.
• System Reliability: Designed to interface with 24VAC control circuits to resolve flame failure and gas valve relay errors.

Is the 100327116 compatible with liquid propane (LP) systems?
No, this specific model is factory-configured for natural gas (NAT) at 2.7" WC. Using this valve with LP would require a conversion kit or a different part number specifically rated for the higher pressures of propane.

Will this valve fix a "GV/Relay Fail" error on my Lochinvar boiler?
While a faulty coil in the gas valve is a common cause, technicians should also verify the wiring harness and 24V signal from the control board before replacement.

Does this valve include the 4-pin Molex connector?
This valve is designed to accept the standard OEM wiring harness used in Lochinvar and A.O. Smith equipment, but the harness itself is typically sold separately or preserved from the old unit.

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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.