30 Rev. 05JUL2016
Appendix F2: Non-Pressurized Variable Speed Flow Center Submials
.
Submial Data
non-pressurized ow center, variable speed, double pump
Project Name:
Contractor:
Engineer:
Order Number:
Addional Informaon:
Technical Data
Electrical Data Approved Anfreeze
Mounng
Pump Performance Curves
Circulators:
Cabinet:
Tank:
Insulaon:
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-posion ushing and isolaon/service valve, composite
valve body and spool, NBR seals, stainless steel retaining ring
Max. uid temp.: 140°F [60°C]
Min. uid temp.: 20°F [-7°C]
Max. operang press.: 13 psig [89.6 kPa]
Max. ambient air temp.: 104°F [40°C]
Max. ambient relave 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
installaon only.
Flow center must
be installed in an
upright posion as
shown to the right.
The pump terminal
box should be
located in one of the
following orienta-
ons:
UPS26-99 motor: 230V, 60 Hz, single phase, 2-pole, UL and CSA approved, internal thermal over-
load protecon, insulaon 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, insulaon 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-o.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 ow/head)
Magna GEO (highest duty cycle -- lowest ow/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 ow 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]
*At 230V
UPS26-99
Magna GEO
NP
1
NP
2
NP
V
NP
V2
NP
Series