30 | Installation, Operating, and Maintenance Manual
Rev. 05JUL2016
Appendix F2: Non-Pressurized Variable Speed Flow Center Submittals
.
Submittal Data
non-pressurized flow center, variable speed, double pump
Project Name:
Contractor:
Engineer:
Order Number:
Additional Information:
Technical Data
Electrical Data
Approved Antifreeze
Mounting
Pump Performance Curves
Circulators:
Cabinet:
Tank:
Insulation:
Valves:
Grundfos UPS26-99 & Magna GEO variable speed (requires controller)
Powder coated galvanized steel
Polyvinyl chloride (PVC)
CFC-free polyurethane foam
1”, 3-way, 4-position flushing and isolation/service valve, composite
valve body and spool, NBR seals, stainless steel retaining ring
Max. fluid temp.: 140°F [60°C]
Min. fluid temp.: 20°F [-7°C]
Max. operating press.: 13 psig [89.6 kPa]
Max. ambient air temp.: 104°F [40°C]
Max. ambient relative humidity: 80%
Propylene Glycol
Methanol
Ethanol
Curves are manufacturer’s reported averages using water at 68°F [20°C].
Flow center is
designed for indoor
installation only.
Flow center must
be installed in an
upright position as
shown to the right.
The pump terminal
box should be
located in one of the
following orienta-
tions:
UPS26-99 motor: 230V, 60 Hz, single phase, 2-pole, UL and CSA approved, internal thermal over-
load protection, insulation class F, three speed
Magna GEO motor: 208-230V, 50/60 Hz, single phase, 2-pole, ETL
C/US
approved (meets UL and
CSA requirements), electronically protected, insulation class F, variable speed
GEO-FLO PRODUCTS CORPORATION
905 Williams Park Drive
Bedford, IN 47421 U.S.A.
PH: 812-275-8513; FAX: 812-275-8523
www.geo-flo.com
SD 1276 rev. 02JAN2013
Flow (U.S. GPM) [l/s]
Grundfos Magna GEO 32-140 and UPS26-99 (pumps in series)
Pumps operate in series
between these curves*
to maintain flow rate
or temperature diff.
Magna GEO + UPS26-99 (high speed)
Magna GEO (lowest duty cycle -- highest flow/head)
Magna GEO (highest duty cycle -- lowest flow/head)
*UPS26-99 is a constant speed pump; Magna GEO is a variable
speed pump. When both pumps are running, the Magna GEO
operates between duty cycles shown below to maintain
set flow rate or temperature difference.
[0.32 0.63 0.95 1.26 1.58 1.89 2.21 2.52 2.84 3.15]
0 5 10 15 20 25 30 35 40 45 50
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
[134]
[15]
[30]
[45]
[60]
[75]
[90]
[105]
[119]
[149]
[164]
[179]
[194]
[209]
[224]
[239]
Head (F
ee
t) [kP
a]
*At 230V
UPS26-99
Magna GEO
NP
1
NP
2
NP
V
NP
V2
NP
Series
