GRUNDFOS - HOT WATER RECIRCULATION SYSTEMS UPS15-55SUC/LC 115V 60HZ 9H DT 115 3-speed, union 1-1/4" timer, line cord - 99452479

The Grundfos UPS15-55SUC/TLC (MPN 99452479) is a premium 3-speed stainless steel domestic hot water recirculation pump engineered to provide instant hot water while reducing water waste and energy consumption. Designed for potable water systems with dedicated return lines, this 115V circulator features a corrosion-resistant stainless steel housing, integrated 24-hour timer, line cord, removable check valve, and maintenance-free canned rotor motor. The three-speed selector allows installers to optimize flow for residential and light commercial applications, including traditional storage tank and tankless water heaters. Quiet operation, long service life, and reliable performance make it an ideal domestic hot water recirculation solution.

Cross References

1. Grundfos — 99452479 (UPS15-55SUC/TLC)
2. Grundfos — 59896783
3. Grundfos — 59896130

(Grundfos lists 59896783 and 59896130 as comparable replacement models for this pump.)

Usage

The UPS15-55SUC/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 provide near-instant hot water at fixtures while reducing water waste. The built-in 24-hour timer allows operation only during periods of demand, reducing energy consumption. Its stainless steel housing makes it suitable for potable water, and the three-speed motor lets installers adjust performance to suit the plumbing system. It is commonly used with residential and commercial storage tank and tankless water heaters.