Collector Hose - IVT Greenline HT Plus C Assembly, Commissioning And Maintenance Manual

The heat pump and collector hose in general

Collector hose

The task of the collector hose is to convey the heat transfer fl uid through
the ground or rock to fetch a few degrees of heat to the heat pump. The
hose consists of a thin-walled plastic hose of the type PEM 40 x 2.4 PN 6.3.
It is important when the collector hose is placed in the ground that air
pockets are avoided.
Installation and refi lling around the collector hose
Installation and fi lling of ground around the collector hose must comply
with applicable laws and regulations.
It is important that the fi lling material does not contain stones or other
sharp objects that can damage the collector hose. We also recommend that
the hose is pressure tested before starting to refi ll. If the hose should leak
it is easier to fi x the problem.
When cutting the collector hose it is important that no dirt or gravel
enters the system. This can cause stoppages in the heat pump and damage
components.
Minimum permitted bending diameter
Minimum permitted bending diameter is 1 metre. If sharper bends
are required an elbow connector must be used. If the collector hose is
damaged by too sharp a bend, you can repair the damage using a straight
coupling.
Maximum length of the collector hose
The maximum length of the collector hose is based on the heat carrier
pump's pressure setting. We recommend a heat transfer fl uid consisting
of max 29 per cent ethanol by volume and water. Bio-ethanol has good
environmental and technical properties even at low temperatures and
should therefore be used instead of other heat transfer fl uids.
Heat pump model
Greenline HT Plus C6/E6
Greenline HT Plus C7/E7
Greenline HT Plus C9/E9
Greenline HT Plus C11/E11
Greenline HT Plus E14
Greenline HT Plus E17
Maximum hose length Maximum hose length
in one circuit per hose in two circuits
600 metres
500 metres
400 metres
400 metres
-
-
The depth and length of the collector
hose are described in detail in the con-
fi guration program VPW2100.
The maximum collector hose lengths
for heat pump models are provided in
the table.
In situations where the length of the
collector hose needs to exceed the
permitted value, you can connect the
hoses in parallel. Note that for parallel
-
connecting the maximum length per
hose is specifi ed. As an example the
1000 metres
table shows that for E11 the maximum
800 metres
hose length is 400 metres. For two
hoses connected in parallel the maxi-
800 metres
mum length is 800 metres per hose,
800 metres
i.e. in total 1600 metres with a parallel
connection.
800 metres
44
Note
Note