Ochsner TERRA 6, Operating And Installation Manual

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INSTALLATION | Preparing to install the appliance
982001-TERRA-M2-M4-EN04.1 | www.ochsner.com 15
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1 Appropriately sealed wall conduit
2 Appropriate sealing of the brine lines as they pass
through the pipe liner
3 Insulation
4 Gravel
5 Pipe liner (with min. 2% fall to outside)
6 Drainage
7 Foundation
9.2.3 Preparing the collection shaft
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1500 mm
1200-1400 mm
1 2 3
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1 Concrete ring (diameter min. 1500 mm)
Shaft depth min. 2000 mm
2 Access (diameter min. 800 mm)
3 Sand bed
4 Heat source flow (brine)
5 Brine distributor
6 Pipe liner to building
7 Heat source return (brine)
8 Drainage
9 Gravel
i Information
When laying brine lines in the ground, schedule
the work so that the pipe liner can be laid together
with the already inserted brine lines in the trench
between the indoor unit and the collection shaft.
- If the pipe liner is laid empty, inserting the
brine lines afterwards will be difficult if not
impossible, depending on the configuration of
the connection line.
»
Install a pipe liner between the wall conduit into the
building and the collection shaft. The pipe liner con-
tains the lines for the heat source flow (brine) and
heat source return (brine).
»
For the underground pipe liner, use rigid waste pipes.
»
Use a pipe liner of a suitable diameter for the sys-
tem-specific brine lines and the planned pipe bends.
»
For 90° bends in the pipes, use either 3x 30° bends
or 6x 15° bends (depending on the diameter of the
pipe liner and the depth at which it is laid).
»
Dig a straight trench between the wall conduit and the
collection shaft.
»
Lay the pipe liner, with the brine lines already insert-
ed, in the trench between the collection shaft and the
indoor unit.
»
Lay the pipe liner with a slight fall (at least 2%) to the
collection shaft.
»
Ensure that the wall conduits are appropriate and
plant-specific, and that the pipe liner is appropriately
sealed.
»
Any exposed brine lines outside the pipe liner must
also be protected from a build-up of condensation us-
ing appropriate insulating material. Out of doors, the
insulating material must also have UV protection.
i
Information
Insulation used beneath the soil must be made of
a closed-cell material. Otherwise, the thermal in-
sulation of the material will be impaired.
Material damage
PU foam is not suitable as a sealant for the pipe
liner.