Grundfos Alpha 15-58FR is a 115V high-efficiency variable speed cast iron circulator pump with rotated flange and 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.
Cross-References:
- Grundfos: UP15-42, UPS 15-58, ALPHA1 15-55, ALPHA2 15-55
- Taco: 007/007e, 008, 0015/0015e3, 0018e
- B&G: NRF-9F/LW, NRF-25, NRF-33, ecocirc 19-14, ecocirc 19-16, ecocirc 20-18
- Armstrong: ASTRO 225, ASTRO 230, ASTRO 250, Compass H20-20
- 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) constant pressure cruves (the head across each zone is constant), (1) constant 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
- cULus, FCC Listed
- Casing: Cast Iron
- Circulator Pump Type: variable speed, high-efficiency w/ ECM motor and (13) modes - (4) constant curve (incl. AUTOAdapt), (4) constant pressure (incl. AUTOAdapt), (4) proportional pressure (incl. AUTOAdapt), and (1) constant flow
- Connections: Rotated Flange (GF 15/26)
- Circulator Height (Flange to Flange): 6-1/2"
- Electrical Specs: 115V, 60 Hz, 38W max, 0.71 Amps max
- Head Range: 0-19 ft
- Flow Range: 0-13.6 GPM
- Operating Temperature Range: 36°F - 230°F
- Max Operating Pressure:Â 175 psi
- Sound Pressure Level: 25 dB (A)
- Hydraulic Institute Energy Rating (ER): 193
- Dimensions (Depth x Width x Height): 5.71" x 5.23" x 6.50"
- Weight (lbs):Â 6.05 lbs
30 months from the date of manufacture / 24 months from date of installation
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