Grundfos S1558FC Circulator Pump Heating Cooling Systems

Product Description

The GRUNDFOS S1558FC is a circulator pump from the UP and UPS Series 100 product family, engineered for reliable fluid movement in closed-loop hydronic systems. It handles heating, domestic hot water, cooling, and air-conditioning applications. The Series 100 line is available in multiple material configurations, allowing selection based on fluid compatibility and system requirements. Licensed plumbers and HVAC technicians install this type of pump in both new construction and retrofit scenarios where consistent circulation flow is essential to system efficiency and temperature control.

The S1558FC is suited for residential and light commercial installations. Typical applications include hydronic heating loops, domestic hot water recirculation systems, chilled water cooling circuits, and air-conditioning system fluid loops. Its design accommodates a range of system configurations, making it a versatile choice for trade professionals working across heating and cooling disciplines.

Key Features

• Designed for heating, domestic hot water, cooling, and air-conditioning systems
• Part of the UP and UPS Series 100 circulator pump family
• Available in various material configurations for broad fluid compatibility
• Suitable for both residential and light commercial hydronic applications

Compatibility

Designed as an OEM-style replacement or direct-install circulator pump for hydronic heating, domestic hot water recirculation, cooling, and air-conditioning fluid systems.

Installation Notes

Installation should be performed by a licensed plumber or HVAC technician in accordance with applicable local mechanical codes. Shut off and isolate the system, relieve pressure, and drain the affected loop before removing or installing the pump. Verify flow direction markings on the pump body align with system flow before final connection. Follow the manufacturer documentation for electrical wiring and ensure the circuit is de-energized before making any electrical connections.

Technical Specifications

• Series: UP and UPS Series 100
• Application: Heating, Domestic Hot Water, Cooling, Air Conditioning

Standard Information

• Brand: GRUNDFOS
• Manufacturer Part Number: S1558FC