Grundfos 99452462 Pump

The Grundfos 99452462, model UP15-29SUC/TLC, is a high-efficiency stainless steel circulator pump engineered specifically for residential hot water recirculation and open-loop hydronic systems. This 115V, 1/12 HP induction motor features a wet-rotor design where the pumped medium cools and lubricates the ceramic shaft and radial bearings, ensuring remarkably quiet operation and eliminating the need for external fans or mechanical seals. The integrated timer and 24-hour clock allow contractors to program specific operation cycles, significantly reducing energy consumption and water waste by providing instant hot water only when required.

Constructed with a corrosion-resistant AISI 304 stainless steel housing and a composite (PES/PP) impeller, this hot water recirculation pump is rated for a maximum pressure of 145 PSI and fluid temperatures up to 150°F. The UP15-29SUC/TLC 115V includes a 6-foot power cord and a removable integral check valve to prevent backflow and simplify the installation process in 1-1/4" union connection setups. This single-speed circulator is a reliable solution for maintaining stable flow rates in domestic plumbing and radiant heating applications where consistent performance and reduced maintenance are priority requirements for professionals.

• Corrosion-Resistant Housing: The stainless steel pump body is ideal for potable water systems, preventing rust and ensuring long-term reliability.
• Integrated Timer Control: Features a built-in 24-hour timer and line cord, allowing for easy scheduling to maximize system efficiency.
• Quiet Operation: The wet-rotor induction motor eliminates mechanical friction noise, making it suitable for indoor residential installations.
• Simplified Maintenance: The sealless design is virtually maintenance-free as the internal components are lubricated by the pumped liquid.
• Easy Installation: Equipped with 1-1/4" NPSM union connections and an internal check valve for rapid field deployment.

• Can this pump be used in vertical piping? Yes, the Grundfos UP15-29SUC/TLC can be installed in both vertical and horizontal lines, provided the motor shaft remains in a horizontal position.
• Does this model include the union nuts? No, while the pump is union connection ready, the 1-1/4" union sets must be purchased separately based on your specific piping material.
• What happens if the power goes out? The mechanical timer will stop during power loss; however, the manual override allows for continuous run-time regardless of the clock setting until power is restored.

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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.