Grundfos Geo-Flo Universal Pump Controller Installation, Operating And Maintenance Manual page 29

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Appendix F1: Pressurized Variable Speed Flow Center Submittals
Pump Power Curves
Grundfos UPS26-99 Power Curves
[0.13
0.25
0.38
0.50
0.63
Dimensional Data
A
B
Inches
13-1/4
10-3/16
CM
33.6
25.9
B
D
E
A
F
H
0.76
0.88
1.00
1.14
1.26
1.39
1.51
Flow (U.S. GPM) [l/s]
C
D
E
8-1/2
9-7/16
4-3/4
12-1/2
21.6
24.0
12.0
31.7
G
I
C
GEO-FLO UNIVERSAL PUMP CONTROLLER: UPC-GEO | 27
NOTES: The Magna GEO (variable speed)
pump adjusts speed (when used with con-
troller) to maintain flow rate or tempera-
ture difference. The controller energizes
the constant speed pump (UPS26-99) when
the Magna GEO cannot meet setpoint, and
adjusts the Magna GEO pump accordingly.
Total flow center Watts equals constant
speed pump Watts plus Magna GEO Watts
at design conditions. For Watts based upon
a specific flow rate and pressure drop, go to
www.geo-flo.com, and use the pump sizing
calculator.
250
200
1.64
1.77
1.89
2.02
2.15
2.27]
150
100
50
0
0
F
G
H
2
5
3/8"
DRIVE
SOCKET
5.0
12.7
Fluid connections are Flo-Link™ double O-ring
style. Transition fittings are not included with
the flow center packaging. Typically, PE fusion
x Flo-Link is used on the ground loop connec-
tions. A Geo-Flo hose kit designed for Flo-Link
connections includes transition fittings for heat
pump connections.
Flow center may be field modified to a one
pump flow center by replacing the constant
speed pump with a blank plate kit.
GEO-FLO PRODUCTS CORPORATION
905 Williams Park Drive
Bedford, IN 47421
Phone: 812-275-8513 Fax: 812-275-8523
www.geo-flo.com
Grundfos Magna GEO 32-140 Power
10
20
30
[0.63
1.26
1.89
Flow (U.S. GPM) [l/s]
I
WEIGHT
LBS
KG
30.0
13.6
SD 1299 rev. 24SEP2013
40
2.52]

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