Lochinvar & A.O. Smith 100109424 Valve

The Lochinvar & A.O. Smith 100109424 Valve is a specialized Intellivent gas control valve engineered for precision fuel regulation in high-efficiency residential and light commercial natural gas water heaters. As a veteran-grade OEM replacement gas valve, it features a 1/2" NPT inlet/outlet and is factory-set for a 4.2" WC manifold pressure to ensure optimal combustion stability. This gas control thermostat incorporates an integrated ECO (Energy Cut-Off) safety switch calibrated to 195°F, providing critical over-temperature protection by interrupting gas flow if water temperatures exceed safe operating limits. Designed for natural gas water heater repair, the 100109424 model is a direct Intellivent power vent valve replacement used across diverse A.O. Smith, Lochinvar, and State Industries platforms. Its robust electronic interface facilitates seamless communication with the power vent blower, managing ignition sequences and maintaining consistent heat output via internal pressure regulation mechanisms.

• Direct OEM Compatibility: Precisely matches Lochinvar 100109424 and A.O. Smith 100109424 specifications for a "drop-in" installation without field modifications.
• Enhanced Safety Logic: Features a factory-integrated 195F ECO sensor to prevent scalding and tank damage through redundant thermal shut-off.
• Consistent Pressure Control: Maintains a steady 4.2" WC for natural gas, ensuring efficient burner performance and reducing CO emissions.
• Intellivent Integration: Specifically designed to interface with electronic ignition and power vent systems for modern HVACR heating applications.

What is the manifold pressure setting for this valve?
This valve is factory-calibrated for Natural Gas at a regulated output of 4.2" water column (WC).

Can I use this 100109424 valve for Propane (LP) applications?
No, this specific model is designed and calibrated for natural gas. Always verify the fuel type on the water heater rating plate before installation.

Does this unit include the ECO thermal switch?
Yes, the 195F ECO (Energy Cut-Off) is internally integrated into the valve assembly to monitor water temperature and provide a safety shutdown if the thermostat fails.

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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.