Lochinvar & A.O. Smith 100110706 Thermostat Valve

The Lochinvar & A.O. Smith 100110706 Thermostat Valve is a critical combustion control component designed for high-recovery commercial water heaters and boilers. Engineered to manage 4" WC Natural Gas supply pressures, this valve integrates a precise sensing bulb to maintain consistent water temperatures within the storage tank. As a direct OEM replacement part, it ensures proper manifold pressure and safe ignition cycles for units requiring a gas water heater thermostat with integrated high-limit protection. The 100110706 is frequently specified for Lochinvar Knight and A.O. Smith Cyclone series models, where maintaining narrow temperature differentials is essential for system efficiency. When performing a hot water heater gas valve replacement, this component provides the necessary reliability for demanding commercial applications, preventing nuisance lockouts and ensuring optimal BTU input. Its rugged construction stands up to the thermal cycling common in industrial environments, making it a standard choice for thermal expansion control and gas regulation.

Key Technical Benefits

• Precise Gas Regulation: Calibrated for 4" WC Natural Gas applications to ensure stable burner performance.
• OEM Compatibility: Exact fit for Lochinvar 100110706 and A.O. Smith 100110706 commercial equipment.
• Integrated Safety: Features an internal ECO (Energy Cut-Off) to prevent overheating conditions.
• Durable Construction: Built to withstand the high ambient temperatures of commercial mechanical rooms.
• Consistent Calibration: Maintains accurate setpoints for better recovery rates and energy efficiency.

Common Installation Questions

What are the symptoms of a failing 100110706 thermostat valve?
Technicians typically see inconsistent water temperatures, a pilot that won't stay lit due to an open ECO circuit, or the main burner failing to engage despite a call for heat.

Is this valve compatible with LP gas conversions?
No, this specific model is factory-set for 4" WC Natural Gas. Using this on Propane applications without a certified conversion kit will lead to improper combustion and safety hazards.

How do I verify if this fits my specific Lochinvar or A.O. Smith model?
Check your data plate for the required manifold pressure. This valve is designed for units specifically listing 100110706 or the legacy part number 9004533005.

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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.