ALPHA 15-58FR Smart ECM High Efficiency Circulator Pump with Rotated Flange and Optimized Setpoint Control

The Grundfos ALPHA 15-58 is a high-efficiency circulator pump designed for heating systems. It is built with an ECM (Electronically Commutated Motor) for maximum performance. This digitally connected pump features intelligent controls with constant pressure, proportional pressure, and constant curve settings, each offering adjustable levels and AUTOADAPT functionality. The AUTOADAPT setting automatically optimizes performance, eliminating the need for manual selection. With fewer callbacks than other pumps, the Grundfos ALPHA 15-58 ensures reliable, efficient operation. Ideal for residential and light commercial applications for maintaining a steady, energy-efficient heating system. The ALPHA meets the energy conservation standards for circulator pumps the Department of Energy established, which will take effect in May 2028.

Features:

• High-efficiency heating circulator built with an ECM for energy savings
• Constant air detection improves heat transfer and reduces system noise
• Self-venting feature removes trapped air using the Grundfos Go app during set-up or service
• Dry-run protection stops the pump if water is not detected in the system 
• Available in a cast iron flange with a check valve or a cast iron rotated flange with a check valve
• Smaller conduit box helps with installations in small spaces, and a toolless lever connector enables wiring to be done outside the conduit box
• With Constant Flow, the pump will maintain a flow set at installation
• Touchscreen for easy user interface operation
• LED lights give a numeric display of flow, feet of head, and watts
• Maintains one of the highest Energy Ratings in the market (193) based on the Hydraulic Institute Energy Rating