Lochinvar & A.O. Smith 100279849 Pump

The Lochinvar & A.O. Smith 100279849 Pump is a critical OEM replacement boiler pump designed for high-performance hydronic and domestic hot water systems. This 115V 1/6HP circulator pump features a robust motor rated at 3300 RPM, providing the necessary head pressure for consistent flow in residential and commercial applications. Engineered with bronze or cast iron construction depending on the specific assembly, it includes 1 1/2" flanges and gaskets to ensure a leak-proof seal and simplified field installation. This unit serves as the direct replacement for ARM3045PBF and 100133614, maintaining the exact form, fit, and function required for Lochinvar RWN series and copper-plate systems. When replacing a hydronic circulating pump, verifying the 1/6 horsepower rating and voltage compatibility is essential for maintaining system pressure and thermal efficiency.

• Direct OEM Compatibility: Seamlessly replaces discontinued part numbers ARM3045PBF and 100133614 without needing piping modifications.
• High-Efficiency Performance: The 1/6 HP motor is optimized for precise flow rates in boiler loops and water heating circuits.
• Complete Installation Kit: Ships with 1 1/2" flanges and high-temp gaskets for immediate mechanical attachment.
• Industrial Build Quality: Designed to withstand the thermal stresses of continuous HVACR circulation.

Is this pump compatible with my existing Armstrong flanges?
Yes, the 100279849 is designed to match the bolt pattern and spacing of the Armstrong ARM3045PBF, utilizing standard 1 1/2" flanges for a drop-in replacement.

Can this motor be used on 230V systems?
No, this specific model is a 115V single-phase pump. Always verify your line voltage before wiring to prevent motor failure.

Does this unit include the required gaskets?
Yes, this replacement circulator pump includes two gaskets and two flanges to ensure a proper seal during the swap-out.

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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.