The Grundfos UPS15-58FC is a 3-speed circulator pump designed for use in heating and air-conditioning systems, including central and district heating applications. This pump is engineered for reliable and maintenance-free operation, making it a popular choice among HVAC professionals and DIY installers. With its cast iron housing, corrosion-resistant components, and precise flow control, the UPS15-58FC offers a combination of durability, efficiency, and quiet operation. This article explores the pump’s technical specifications, installation considerations, and key features, based on information provided by verified sources.
Technical Specifications and Design Overview
The UPS15-58FC is a canned rotor pump, meaning that the motor and pump are integrated into a single unit without the need for a shaft seal. This design minimizes leakage risks and simplifies maintenance. The pump is available in a bolted flanged configuration, allowing it to be easily connected to piping systems in a variety of applications.
The pump operates on 115 VAC, 60 Hz power and has a power rating of 87 W. It features a maximum head of 19.4 feet and a flow rate of up to 17.2 gallons per minute (GPM). These specifications make the pump suitable for systems where moderate flow and pressure are required.
The housing is made of cast iron, and the impeller is constructed from a composite material known as PES, which is resistant to corrosion. The rotor is made of stainless steel, and the bearings are a combination of ceramic radial and carbon axial types, both of which are lubricated by the pumped liquid. These materials contribute to the pump’s long service life and reliable performance.
The pump supports three distinct speed settings, which allow users to adjust the flow rate according to the system’s needs. This adaptability makes the pump suitable for a wide range of applications, including radiant heating, hydronic heating, and fan coil systems.
Installation Considerations
Proper installation is essential for ensuring the optimal performance and longevity of the Grundfos UPS15-58FC. The pump is designed for in-line mounting and features a flange-to-flange connection type, making it compatible with standard piping systems. The pump fits connection sizes ranging from 3/4 inch to 1-1/2 inches, allowing for flexibility in system design.
One of the key components included with the pump is a removable check valve. This valve helps prevent backflow in the system, ensuring that the liquid remains within the intended flow path. The check valve is sealed using only two gaskets, which simplifies maintenance and reduces the risk of leaks.
The pump also includes gaskets and O-rings for sealing, which are essential for maintaining a tight connection between the pump and the piping system. These sealing components should be inspected during installation and replaced if necessary to ensure a leak-free setup.
The pump is designed for use in environments with ambient temperatures up to 104 degrees Celsius (219 degrees Fahrenheit) and is rated for liquid temperatures between 35.6 and 230 degrees Fahrenheit. It is also rated for a pressure of up to 145 pounds per square inch (PSI), making it suitable for high-pressure applications.
Key Features and Benefits
The UPS15-58FC offers a number of features that enhance its performance and ease of use:
3-Speed Operation: The pump allows users to adjust the flow rate by selecting one of three speed settings. This makes it ideal for applications where variable flow is required, such as in radiant heating systems where different zones may have different heat demands.
Whisper-Quiet Operation: The pump is engineered for low-noise performance, making it suitable for use in sound-sensitive environments such as residential homes, offices, and commercial buildings.
Cast Iron Housing: The cast iron housing provides excellent durability and resistance to corrosion, ensuring the pump can withstand harsh operating conditions over time.
Ceramic and Carbon Bearings: The use of ceramic radial and carbon axial bearings ensures smooth and reliable operation. These bearings are lubricated by the pumped liquid, eliminating the need for additional maintenance.
Removable Check Valve: The pump includes a check valve that can be easily removed for inspection or replacement. This simplifies maintenance and helps prevent system downtime.
Comprehensive Sealing Components: The pump comes with gaskets and O-rings to ensure a secure and leak-free connection to the piping system.
UL Listed and CSA Certified: The pump meets industry safety standards and is certified for use in North American markets.
Extended Warranty: Some retailers offer an extended manufacturer warranty of up to two years, providing additional peace of mind for users.
Compatibility and Application Range
The Grundfos UPS15-58FC is compatible with a wide range of heating and cooling systems, including:
Hydronic Heating Systems: These systems use water or another heat transfer fluid to distribute heat through pipes and radiators. The pump’s variable speed and high-pressure capabilities make it an ideal choice for hydronic applications.
Radiant Heating Systems: In radiant heating, heat is transferred through floors, walls, or ceilings. The pump’s ability to provide consistent and adjustable flow is essential for maintaining even heat distribution.
Fan Coil Systems: These systems use fans to circulate air over a heat exchanger. The pump helps maintain the flow of heated or cooled water to the coils, ensuring efficient operation.
District Heating Systems: In district heating, a central plant distributes heat to multiple buildings through a network of pipes. The pump’s durability and high-pressure rating make it suitable for use in such large-scale systems.
The pump is also suitable for use with a variety of fluids, including water and glycol-based solutions, as long as the temperature and pressure ratings are within the specified limits.
Maintenance and Service
The UPS15-58FC is designed for low-maintenance operation, but regular inspections and preventive maintenance can help ensure long-term reliability. Key maintenance tasks include:
Inspecting Seals and Gaskets: Over time, seals and gaskets may degrade due to exposure to heat and pressure. These components should be inspected and replaced if necessary to prevent leaks.
Checking the Check Valve: The check valve should be inspected for wear or damage. If it is not functioning properly, it should be replaced to prevent backflow.
Monitoring Performance: Users should monitor the pump’s performance over time to detect any signs of reduced efficiency or unusual noise. This can help identify potential issues before they lead to system failure.
Cleaning the Pump Housing: Accumulation of dirt or debris on the pump housing can affect its performance. Regular cleaning can help maintain optimal operation.
Ensuring Proper Lubrication: Since the pump’s bearings are lubricated by the pumped liquid, it is important to ensure that the fluid is clean and free of contaminants that could cause damage.
Safety and Compliance
The Grundfos UPS15-58FC meets several industry safety and compliance standards. It is UL Listed and CSA Certified, indicating that it has been tested and approved for use in North American markets. These certifications ensure that the pump meets electrical and mechanical safety requirements.
The pump is also rated for use in environments with high ambient temperatures and is designed to operate safely under a wide range of conditions. It is important to follow the manufacturer’s guidelines for installation and operation to ensure compliance with all applicable safety standards.
Conclusion
The Grundfos UPS15-58FC is a versatile and reliable circulator pump designed for use in a wide range of heating and cooling applications. With its three-speed operation, durable cast iron housing, and high-pressure capabilities, it is well-suited for both residential and commercial systems. The inclusion of a check valve and comprehensive sealing components further enhances its performance and ease of use. When installed and maintained properly, the pump can provide years of efficient and trouble-free operation. Its compliance with industry standards and extended warranty options also make it a dependable choice for users seeking a high-quality circulator pump.