Grundfos Alpha 15-58F is a 115V high-efficiency variable speed cast iron circulator pump with a wide range of operating modes and Bluetooth functionality. It is suitable for a wide range of applications, including hydronic heating (baseboard/radiator/fan coil), radiant floor heating and cooling, and is capable of replacing most common circulators on the market.
Optional remote control & diagnostics via Bluetooth using Grundfos GO app
Drop-in replacement for most commont circulators on the market
Highest energy rating on the market
Multiple operating modes: (3) constant curves (constant speed), (1) constant curve AUTOAdapt, (3) constant pressure curves (the head pressure is reduced at falling heat demand and conversely), (1) constant pressure AUTOAdapt, (3) proportional pressure cruves (the head across each zone is constant), (1) proportional pressure AUTOAdapt, and (1) constant flow (flow is maintained independently of the head)
AUTOAdapt (default factory setting) automatically adjusts the pump performance to the size of the system and load over time
High-efficiency ECM motor uses up to 85% less electricity
Built-in removable check valve
Dry-run protection stops the circulator if water is not detected in the system
Automatic self-venting feature helps to prevent air locked circulator and eliminate unwanted noise
Suitable for up to pumping up to 50/50 glycol & water mix solution
Grundfos mini Eye LED displays system status for easy troubleshooting
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