Lochinvar & A.O. Smith 100112652 Gas Valve

The Lochinvar & A.O. Smith 100112652 Gas Valve is a direct OEM replacement engineered for high-recovery natural gas water heaters and power-vented systems. This 1/2" NPT gas valve is factory-calibrated for a 4" WC manifold pressure, ensuring consistent thermal output and burner stability for commercial and residential applications. As a technician, you’ll recognize this unit as the current superseding part for the discontinued Honeywell WV4464B1037 and the primary A.O. Smith 9008261005 replacement. It features an integrated thermostat control and high-limit ECO (Energy Cut-Off) for critical safety during operation. The robust brass valve body provides superior reliability in demanding environments, while the plug-and-play wiring harness compatibility simplifies field installation. Whether you are servicing a Lochinvar power-vent unit or an A.O. Smith ProLine series, this 4 inch WC gas control maintains precise logic for ignition cycles and flame sensing, preventing common "no heat" calls caused by drifting regulation or internal diaphragm failure.

• Direct OEM Compatibility: Specifically designed to replace the legacy WV4464B1037 and 9008261005 models without modification.
• Precise Pressure Regulation: Fixed 4" WC natural gas setting ensures the burner maintains the correct BTU input for peak efficiency.
• Integrated Safety Logic: Features a built-in high-temperature cut-off and manual reset capability for system protection.
• Technical Reliability: Durable OEM construction reduces service callbacks and ensures long-term performance under high cycling.

Common Questions:

Is the 100112652 compatible with Liquid Propane (LP) units?
No, this valve is strictly for natural gas water heaters. Using this on an LP system will cause unsafe combustion and equipment damage. Verify your fuel source before installation.

Can I use this to replace a different Honeywell WV series valve?
This valve is the designated successor for the WV4464B1037. While it may fit other 1/2" gas line connections, always verify the manifold pressure requirements (4" WC) and wiring harness pinouts to ensure full compatibility with the existing controller.

Does this valve include the internal igniter or thermal sensor?
The 100112652 manages the electrical signals for the igniter and communicates with the flame sensor, but those components are typically separate field-replaceable parts. Ensure your igniter and sensor are tested when replacing the valve body.

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.