The Story
Grundfos UPS 15-55 SUC (59896781) — Stainless-Steel Circulator Pump
The Grundfos UPS 15-55 SUC is a three-speed, stainless-steel circulator pump designed for hot-water recirculation, radiant heating, and closed-loop systems. With corrosion-resistant construction, quiet performance, and flexible speed control, it ensures dependable flow and long service life in both residential and light-commercial applications.
Key Features & Benefits
- Three-speed motor for precise system balancing and performance optimization
- Stainless-steel housing for potable-water and high-corrosion environments
- Maintenance-free, wet-rotor motor with quiet operation
- Union connections for simple installation and service
- Thermal protection and overload safety for long-term reliability
Applications
- Domestic hot-water recirculation
- Radiant floor and baseboard heating systems
- Cooling and air-conditioning loops
- Potable-water circulation and closed-loop systems
Specifications
| Model | UPS 15-55 SUC |
| Item Number | 59896781 |
| Voltage | 115 V, 60 Hz, single-phase |
| Material | Stainless steel |
| Connection Type | Union 1-1/4 in. (Unions sold Separately) |
| Motor Type | Wet-rotor, 3-speed |
| Max Flow | ~22 GPM |
| Max Head | ~20 ft (6.1 m) |
| Liquid Temperature Range | 36 °F – 230 °F (2 °C – 110 °C) Note that when equipped with a timer the Max Liquid temperature is 150 °F |
Common Questions
Q: Is the UPS 15-55 SUC suitable for drinking-water systems?
A: Yes — its stainless-steel housing is certified for potable-water use.
Q: What’s the difference between SUC and FC models?
A: The SUC uses stainless-steel and union fittings for potable systems; FC models use cast-iron flanges for hydronic heating.
Q: Does it include speed control?
A: Yes — three selectable speeds provide optimal system balancing and energy savings.
Q: Can it operate continuously?
A: Absolutely — it’s rated for 24/7 continuous duty with low noise and no maintenance.
Engineered for quiet, efficient circulation — the Grundfos UPS 15-55 SUC delivers stainless-steel performance you can trust for years to come.
This item replaces: 59896225, 59896778, 59896246
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Grundfos UPS 15-55 SUC (59896781) — Stainless-Steel Circulator Pump
The Grundfos UPS 15-55 SUC is a three-speed, stainless-steel circulator pump designed for hot-water recirculation, radiant heating, and closed-loop systems. With corrosion-resistant construction, quiet performance, and flexible speed control, it ensures dependable flow and long service life in both residential and light-commercial applications.
Key Features & Benefits
- Three-speed motor for precise system balancing and performance optimization
- Stainless-steel housing for potable-water and high-corrosion environments
- Maintenance-free, wet-rotor motor with quiet operation
- Union connections for simple installation and service
- Thermal protection and overload safety for long-term reliability
Applications
- Domestic hot-water recirculation
- Radiant floor and baseboard heating systems
- Cooling and air-conditioning loops
- Potable-water circulation and closed-loop systems
Specifications
| Model | UPS 15-55 SUC |
| Item Number | 59896781 |
| Voltage | 115 V, 60 Hz, single-phase |
| Material | Stainless steel |
| Connection Type | Union 1-1/4 in. (Unions sold Separately) |
| Motor Type | Wet-rotor, 3-speed |
| Max Flow | ~22 GPM |
| Max Head | ~20 ft (6.1 m) |
| Liquid Temperature Range | 36 °F – 230 °F (2 °C – 110 °C) Note that when equipped with a timer the Max Liquid temperature is 150 °F |
Common Questions
Q: Is the UPS 15-55 SUC suitable for drinking-water systems?
A: Yes — its stainless-steel housing is certified for potable-water use.
Q: What’s the difference between SUC and FC models?
A: The SUC uses stainless-steel and union fittings for potable systems; FC models use cast-iron flanges for hydronic heating.
Q: Does it include speed control?
A: Yes — three selectable speeds provide optimal system balancing and energy savings.
Q: Can it operate continuously?
A: Absolutely — it’s rated for 24/7 continuous duty with low noise and no maintenance.
Engineered for quiet, efficient circulation — the Grundfos UPS 15-55 SUC delivers stainless-steel performance you can trust for years to come.
This item replaces: 59896225, 59896778, 59896246
