Enertech Global, LLC
13
WS Rev. E Models
Installation and Operations Manual
Typical Pressurized Flow Center Installation
The flow centers are insulated and contain all flushing and
circulation connections for residential and light commercial
earth loops that require a flow rate of no more than 20 gpm.
1-1/4” fusion x 1” double o-ring fittings (AGA6PES) are
furnished with the double o-ring flow centers for HDPE loop
constructions. Various fittings are available for the double
o-ring flow centers for different connections. A typical
installation shown below will require the use of a hose kit.
Matching hose kits come with double o-ring or NPT adapters
to transition to 1” hose connection.
Notes:
•
PVC is not recommended on pressurized systems.
•
Threaded flow centers all have 1” FPT connections.
Matching hose kits come with the AGBA55 adapter
needed to transition from 1” FPT to 1” hose.
Typical Non-Pressurized Flow Center Installation
Standing column flow centers are designed to operate with
no static pressure on the earth loop. The design is such that
the column of water in the flow center is enough pressure to
prime the pumps for proper system operation and pump
reliability. The flow center does have a cap/seal, so it is still a
closed system, where the fluid will not evaporate. If the earth
loop header is external, the loop system will still need to be
flushed with a purge cart. The non-pressurized flow center
needs to be isolated from the flush cart during flushing
because the flow center is not designed to handle pressure.
Since this is a non-pressurized system, the interior piping can
incorporate all the above-mentioned pipe material options
(see interior piping), including PVC. The flow center can be
mounted to the wall with the included bracket or mounted
on the floor as long as it is properly supported. A typical
installation shown below will require the use of a hose kit.
Matching hose kits come with double o-ring or NPT adapters
to transition to 1” hose connection.
Typical Pressurized Flow Center Installation
The followin drawings indicate typical GSHP connections.
Please refer to product dimensional drawings for actual fitting
and port locations
Typical Non-Pressurized Flow Center Installation
The following drawing indicate typical GSHP connections.
Please refer to product dimensional drawings for actual fitting
and port locations
Section 5: Unit Piping Installation
Source Water Out
Source Water In
~~
Flow
Center
GSHP
Hose
Kit
To/From
Loop Field
P/T
Ports
Equipment Pad
2” Polyethylene Foam
Source Water
Out
Source Water
In
~
~
Flow
Center
GSHP
Hose
Kit
From/To
Loop Field
P/T
Ports
Equipment Pad
2” Polyethylene Foam
Flush Valve