Lochinvar & A.O. Smith 100109833 Valve

The Lochinvar & A.O. Smith 100109833 Valve is a critical OEM replacement component designed for high-performance commercial and residential water heaters and boilers. This 120V solenoid-actuated valve features a 1/2" CC inlet and outlet configuration, ensuring a secure, leak-proof connection in high-demand hydronic and heating loops. Engineered for precision, it regulates fluid flow to maintain optimal system pressure and thermal efficiency within A.O. Smith and Lochinvar equipment. As a veteran technician knows, maintaining the integrity of the 120V control circuit is vital for preventing nuisance shutdowns. This valve is built with rugged internal seating to withstand the constant cycling found in modern modulating systems. Whether you are performing a routine teardown or responding to a flow modulation fault, using this genuine 100109833 replacement part ensures the unit stays within factory specifications for 120V electrical characteristics and mechanical flow rates, protecting the heat exchanger from operational stress and ensuring long-term reliability on the job site.

• OEM Compatibility: Precision-engineered for exact fitment in specified Lochinvar and A.O. Smith water heaters and boilers.
• Standardized Connections: Features 1/2" CC inlet & outlet ports for reliable, industry-standard installations.
• Voltage Stability: Rated for 120V systems, ensuring seamless integration with existing control boards and relays.
• Durable Construction: Built to handle high-frequency duty cycles in commercial heating environments without premature mechanical failure.
• Performance Regulation: Maintains consistent flow rates to support peak thermal exchange and fuel efficiency.

What are the signs that this valve needs replacement?
Technicians typically look for 120V power at the coil without valve actuation, audible "chattering" during startup, or restricted flow errors on the boiler’s diagnostic display. Physical leaks at the 1/2" CC connections also necessitate immediate replacement.

Is this valve used for gas or water regulation?
This specific 100109833 model is designed for fluid regulation within the heating system, often used for flow control or isolation in 120V hydronic circuits. Always verify the part number against your specific unit’s manual before installation.

Can I use an aftermarket alternative?
While universal options exist, OEM parts like the 100109833 are required to maintain the specific pressure drop and electrical draw parameters intended by the original equipment manufacturer.

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.