Grundfos UP & UPS Series Pumps

Grundfos UP and UPS Series 100 Circulator Pumps for Hydronic Heating, Domestic Hot Water Recirculation, Cooling, and HVAC Systems

Grundfos UP and UPS Series 100 circulator pumps are designed for heating, domestic hot water, cooling, and air-conditioning systems. These pumps are commonly used in residential hydronic heating, hot water recirculation, commercial HVAC loops, and light industrial water circulation applications where dependable flow, quiet operation, and long service life are important. Grundfos describes the UP and UPS Series 100 as circulator pumps designed for heating, domestic hot-water, cooling, and air-conditioning systems.

The UP Series is typically associated with single-speed circulator operation, making it useful for standard heating and domestic hot water recirculation applications where a fixed pump curve is appropriate. The UPS Series adds multi-speed flexibility, allowing the installer or service technician to select a speed setting that better matches the system’s flow and head requirements.

Grundfos UP and UPS circulators are available in various materials, making them suitable for different system types. Cast iron models are commonly used in closed-loop hydronic heating and cooling systems, while bronze and stainless steel options are commonly selected for domestic hot water and potable water recirculation applications. The Series 100 range also includes twin-head variants in some configurations, providing additional flexibility for systems requiring duty/standby operation or alternating pump service.

With a maximum head listed up to 45 feet and liquid temperature capabilities shown by Grundfos for North American Series 100 models starting around 34.9°F, the UP and UPS family covers a broad range of residential and commercial circulation needs. These pumps are also described by Grundfos as reliable and maintenance-free, making them practical for long-term HVAC and plumbing system operation.

Features

• Circulator pump design for heating, cooling, domestic hot water, and air-conditioning systems
• UP Series single-speed models for standard circulation applications
• UPS Series multi-speed models for adjustable flow and head requirements
• Designed for residential heating and commercial HVAC applications
• Suitable for domestic hot water recirculation when selected in approved materials
• Available in multiple material options for different system fluids and applications
• Cast iron options commonly used for closed-loop hydronic heating and cooling
• Bronze and stainless steel options commonly used for potable water and domestic hot water recirculation
• Twin-head variants available in some configurations
• Maintenance-free circulator design
• Reliable operation for continuous or recurring circulation duty
• Quiet operation for residential and occupied commercial spaces
• Broad performance range for small and medium circulation applications
• North American Series 100 models list maximum head up to 45 feet
• Suitable for HVAC heating, plumbing hot water recirculation, and residential heating applications

Applications

• Hydronic heating systems
• Residential heating systems
• Commercial HVAC systems
• Domestic hot water recirculation
• Potable water recirculation with bronze or stainless steel models
• Cooling systems
• Air-conditioning systems
• Boiler circulation
• Radiant heating systems
• Fan coil circulation
• Light commercial water circulation
• Multi-zone heating systems
• Maintenance-free circulator replacement
• Small and medium pump circulation loops