Lochinvar & A.O. Smith 100166432 Pump

The Lochinvar & A.O. Smith 100166432 Pump is a high-performance circulating pump engineered specifically for AWN commercial water heaters and hydronic systems. This OEM replacement pump, also identified by the industry cross-reference PUM3012, ensures precise flow rates required to maintain thermal efficiency and prevent scaling in high-output heat exchangers. Designed for heavy-duty circulator pump applications, it features a robust motor assembly capable of handling the high-head requirements often found in complex commercial piping configurations. For technicians performing system maintenance or boiler repair, this component offers a direct-fit solution that minimizes downtime and maintains the integrity of the original equipment's performance curves. Its design prioritizes long-term reliability in demanding closed-loop and potable water systems, providing the high-torque start-up necessary for consistent fluid movement.

Key Benefits

• Direct OEM Replacement: Ensures full compatibility with Lochinvar AWN models and 100166432 specifications.
• Interchangeable Parts: Perfectly matches PUM3012 dimensions and electrical requirements for seamless field installation.
• Optimized Flow: Engineered to meet the specific GPM and head pressure requirements of A.O. Smith commercial water heaters.
• Industrial Build Quality: Constructed with materials resistant to common mineral buildup and high-temperature operation.

Common Questions

Is the 100166432 pump compatible with systems requiring the PUM3012?
Yes, the 100166432 is the updated part number and is technically identical to the PUM3012, making it a direct drop-in replacement.

What are the primary indicators that this pump needs replacement?
Technicians should look for increased operational noise, reduced flow velocity evidenced by temperature differentials, or external leaks at the motor housing and flange connections.

Can this pump be used in potable water systems?
This specific model is designed for commercial water heating applications and meets the necessary material standards for potable water circulation in Lochinvar and A.O. Smith units.

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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.