Grundfos Geo-Flo Universal Pump Controller Installation, Operating And Maintenance Manual page 11

To/From Ground Loop
Flo-Link x 1"
MPT w/ tting
for PT Port*
Flow Sensor
1-1/4" fusion x
1" hose barb
From
Unit #1
To
Unit #1
1-1/4" HDPE
(same
connections
as unit #2)
Figure 4a: Two Unit Piping Diagram: Pressurized Flow Center
To
Unit #1
(same
connections
as unit #2)
1-1/4" x
1-1/4"
x 1-1/4"
fusion T
1-1/4" HDPE
1-1/4" fusion x
1" MPT adapter
1" Ball
Valve
1" MPT x 1"
hose barb***
To
Unit #2 Unit #2
1-1/4" or 2" HDPE
NOTE: If 2", a 1-1/4" to 2"
coupling is required
Flo-Link x 1-1/4"
PE fusion**
6" to 8" piece of
1" rubber hose
1-1/4" HDPE
1-1/4" x 1-1/4"
x 1-1/4" fusion T
1-1/4" fusion x
1" MPT adapter
1-1/4" fusion x
1" hose barb
6" to 8"
piece of
From
1" rubber
Unit #1
hose
1-1/4" HDPE**
Flow Sensor
1-1/4" fusion x
1" hose barb
1/2 of Flo-Link x 1"
3-Way
hose barb set with
Valve
tting for PT Port*
NOTE: NPV Kit available with
factory wired controls.
1" Zone
Valve ††
1" rubber hose***
From
Figure 4b: Two Unit Piping Diagram: Non-Pressurized Flow Center
GEO-FLO UNIVERSAL PUMP CONTROLLER: UPC-GEO |
1" Zone
Valve
††
1" rubber hose***
From
Unit #2
Unit #2
1" Ball
Valve
1" MPT x 1"
hose barb***
1/2 of Flo-Link x 1"
hose barb set with
tting for
From
PT Port*
Ground
Loop
To
Ground
Loop
1/2 of Flo-Link
x 1-1/4" PE
fusion set
Panel mount
version available
with factory
wired controls.
*Used for thermistor connections
**Fitting set shipped with flow center.
***Part of hose kit
††Wire zone valve for each unit to activate
immediately from Y1 or ACC (do not use
end switch).
To
1-1/4" or 2" HDPE
NOTE: If 2", a 1-1/4" to 2"
coupling is required
1/2 of Flo-Link x
1-1/4" PE fusion set
*Used for thermistor connections
**All piping attached to flow center
must be properly supported to
eliminate strain on flow center
connections.
***Part of hose kit
††Wire zone valve for each unit to
activate immediately from Y1 or ACC
(do not use end switch).
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