537609 1 Grundfos Alpha Series Brochure User Manual
User Manual: Pump 537609 1 Grundfos Alpha Series Brochure
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The Grundfos ALPHA will change the way you
view circulators. With its permanent magnet
motor design, this energy ecient circulator
reduces power consumption by 50% or more.
The unique patented AUTOADAPT™ feature controls
pump performance automatically within defined
performance range, ensuring lowest possible
energy consumption without sacrificing comfort.
For installation, you also have the flexibility to
use either our unique ALPHA Plug with line cord
or the ALPHA with terminal box for conduit
connection applications. The choice is yours.
it’s time to
DEMAND
MORE
grundfos ALPHA
Simple to install,
Simple to operate.
Simply the best.
Technical Data:
Flow Range: 0 to 21 GPM
Head Range: 0 to 19 Feet
Motor: 1X115V
Min. Fluid Temperature: 36°F (2°C)
Max. Fluid Temperature: 230°F (110°C)
Max. Working Pressure: 150 PSI
Watts: 5-45W
Amps: 0.65A
Product Offering:
A B C D E F G H I J K
6-1/2 6-3/16 4-15/16 3-13/16 2-3/8 3-7/16 4-1/8 5-3/8 6-11/16 5-1/4 6-1/2
Performance Curve:
Model Description Part Number
ALPHA 15-55F Cast iron flange with terminal box 59896877
ALPHA 15-55FR Cast iron rotated flange with terminal box 59896878
ALPHA 15-55SF Stainless flange with terminal box 59896879
ALPHA 15-55F/LC Cast iron flange with line cord 59896832
ALPHA 15-55FR/LC Cast iron rotated flange with line cord 59896833
ALPHA 15-55SF/LC Stainless flange with line cord 59896834
Service Kit - Line cord 91130247
Service Kit - Terminal box 91130312
Dimensional Drawing:
ALPHA Performance Curves
0
2
4
6
8
10
12
14
16
18
20
0246810121416182022
3 Constant Pressures AUTOADAPT3 Fixed Speeds
Q [US GPM]
H [ft]
Terminal
Box
Line
Cord
Unique ALPHA Plug
with line cord
Terminal box for
conduit connection
applications
Large display shows
current energy
consumption in Watts
Large display shows
estimated flow in
gallons per minute
Integrated check-valve
(optional)
The UniqUe FeaTUres oF
The GrUndFos aLPha™
Nut capture Stainless steel and
cast iron pump
housing available
A one button, easy-
to-use interface
Compact design
QR code
Scan with your smart
device to learn more
about ALPHA.
At Grundfos, we believe in making the complicated seem simple and innovative
technology intuitive. Bringing more flexibility and ease of use to your workflow,
AUTOADAPT technology is revolutionary to the market. As the ideal choice for
more than 80% of systems, AUTOADAPT will continuously search for the lowest
possible head to meet system requirements and find the setting that provides
optimal comfort with minimal energy consumption.
You can also go online and explore our Modern Comfort site for all your
domestic buildings needs. Visit:
moderncomfort.grundfos.us
The name Grundfos, the Grundfos logo, and be think innovate are registered trademarks
owned by Grundfos Holding A/S or Grundfos A/S, Denmark. All rights reserved worldwide.
L-AL-SL-001 Rev. 04-13
GRUNDFOS Kansas City
West th Terrace
Olathe, Kansas
Phone: () -
Fax: () -
www.grundfos.us
GRUNDFOS Canada
Brighton Road
Oakville, Ontario
LH C
Phone: () -
Fax: () -
www.grundfos.ca
GRUNDFOS Mexico
Boulevard TLC No.
Parque Industrial Stiva Aeropuerto
C.P. Apodaca, N.L. Mexico
Phone: ---
Fax: ---
www.grundfos.mx
