Lochinvar & A.O. Smith 100285166 Valve+Actuator

The Lochinvar & A.O. Smith 100285166 Valve+Actuator is a critical 3-way bypass valve assembly engineered for high-demand commercial heating and potable water systems. As a direct VAL2125 replacement, this heavy-duty component facilitates precise fluid routing and temperature modulation by diverting or mixing media based on real-time system requirements. Built with a robust CPVC body or forged brass depending on the specific series application, the assembly includes a motorized actuator designed for 3-wire floating control, ensuring seamless integration with existing building management systems and boiler controllers.

For technicians performing a boiler valve repair, this unit offers a drop-in solution to restore the functionality of the 3-way automatic bypass. The integrated actuator operates on a 24VAC/VDC power supply, delivering reliable torque for consistent 90-degree rotation. By managing the flow between the heat exchanger and the system loop, the 100285166 actuator valve maintains optimal thermal efficiency and prevents short-cycling in large-scale hydronic applications involving Lochinvar Power-fin or A.O. Smith Cyclone models.

Key Benefits

• Direct OEM Replacement: Seamlessly replaces VAL2125 and VAL2125K without requiring extensive piping modifications.
• Enhanced Flow Control: The 3-way configuration allows for sophisticated mixing and diverting to protect the heat exchanger from thermal shock.
• Industrial-Grade Durability: Engineered to withstand high-temperature environments typical of commercial water heating and boiler systems.
• Automated Precision: Features a high-performance motorized actuator for precise modulation, reducing manual intervention and energy waste.

Common Questions

Is the 100285166 compatible with older VAL2125 installations?
Yes, the 100285166 is the official manufacturer-designated direct replacement for VAL2125 and VAL2125K, maintaining the same form, fit, and function for service consistency.

Can the actuator be operated manually during a power failure?
Technicians can manually position the valve by removing power and using the de-clutch button located on the side of the actuator housing to prevent damage to the drive gears.

What systems typically use this bypass valve?
This part is commonly found in Lochinvar and A.O. Smith commercial boilers and high-efficiency water heaters where precise 3-way bypass control is required for temperature regulation.

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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.