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PROMOTION
This product is part of a Grundfos Promo that is valid through
November 30th, 2021. With the purchase of 12 qualifying products, participants will receive a Grundfos branded North Face® jacket.

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The ALPHA2 15-55F is a variable speed circulator designed to provide consistent flow in a wide variety of applications. It comes complete with an integrated check-valve, foam insulation jacket, and nut captures for flanges. Constructed of Cast Iron, the ALPHA2 is designed to provide year after year of reliable use.

Note: Flange Connection: GF 15/26 Features:
  • Simple push button
  • Control enables the ALPHA2 to be programmed in one of 3-constant speed, 3-constant pressure, or AUTOADAPT control modes. The current operating mode is always visible on the ALPHA2’s LED display
  • The large LED display shows the current energy consumption in Watts and estimated flow in gallons per minute
  • For installation, you have the flexibility to use either our unique ALPHA Plug with line cord or the ALPHA2 with terminal box for conduit connections
  • ALPHA2 is complete with an integrated check-valve, foam insulation jacket, and nut captures for flanges.
  • ALPHA2 comes in both cast iron and stainless steel models
  • Robust startup enables the ALPHA2 to continuously attempt to restart – indefinitely – in blocked rotor conditions
  • ALPHA2 can be used as a replacement for more than 30 competitor pump model

The GRUNDFOS ALPHA2 is suitable for:
  • Systems with constant or varying flow
  • One pipe systems
  • Two pipe systems
  • Underfloor-heating
  • Domestic hot-water recirculation
  • Systems where night setback is required.
*Note: AUTOADAPT is only for two-pipe systems and not one-pipe systems
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Manuals (1)
Specs
Material:

Cast Iron

Application:

Heating

Flow Range (GPM):

0-21

Max Flow (GPM):

21

Head Range (ft.):

0-19

Max Head (Ft):

19

Type:

Var. Speed Pump

Max Pressure (PSI):

150

Phase:

1

Voltage:

115v

Amperage:

0.65

Hertz:

60

Temperature Range (F):

36°F - 230°F

Connection Type:

Flanged

Connection Size:

3/4" 1" 1-1/4" 1-1/2"

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