GRUNDFOS - HOT WATER RECIRCULATION SYSTEMS UPS15-35SUC/TLC 115V 60HZ 9H DT 115 3-speed, union 1-1/4" timer, line cord - 99452478

The Grundfos UPS15-35SUC/TLC (MPN 99452478) is a high-efficiency 3-speed stainless steel domestic hot water recirculation pump engineered to deliver instant hot water while reducing water waste and energy consumption. Operating on 115V, this maintenance-free circulator features a corrosion-resistant stainless steel housing, integrated digital 24-hour timer, factory-installed line cord, removable integral check valve, and three-speed motor for adjustable performance. Designed for potable water recirculation systems with dedicated return lines, it provides quiet, reliable operation for residential and light commercial applications, including conventional and tankless water heaters.

Cross References

1. Grundfos — 99452478 (UPS15-35SUC/TLC)
2. Grundfos — 59896780 (previous part number)
3. Grundfos — 99452479 (UPS15-55SUC/TLC) (higher-head replacement option within the same series)

Usage

The UPS15-35SUC/TLC is designed for domestic hot water recirculation systems with a dedicated return line. Installed on the hot water return piping near the water heater, it continuously circulates potable hot water to reduce wait times at fixtures and minimize water waste. The integrated digital timer allows programmable operation during periods of demand, reducing electrical consumption while maintaining user comfort. Its stainless steel pump housing is approved for potable water applications, making it ideal for homes, apartments, condominiums, and light commercial buildings using either storage tank or tankless water heaters.