4
General information for the installer
Current regulations require the heating installation to
be inspected before it is commissioned. The inspec-
tion must be carried out by a suitably qualified person
and should be documented. The above applies to
closed heating systems. If the heat pump is replaced,
the installation must be inspected again.
BWB-SS DC series is placed on a firm base, preferably a
concrete floor or foundation. Install BWB-SS DC series
with its back to an outside wall, ideally in a room where
noise does not matter. If this is not possible, avoid
placing it against a wall behind a bedroom or other
room where noise may be a problem. Any wall that
backs on to a bedroom should be fitted with sound
insulation. Route pipes so they are not fixed to an inter-
nal wall that backs on to a bedroom or living room.
Installation
Guideline values for collectors
Inspection of the installation
For use with 40 x 2.4 PN 6.3 PEM hose.
The length of the collector hose varies depending
on the rock /soil conditions and on the heating sys-
tem, i.e. radiators or floor heating.
Max length per collector should not exceed 400 m.
Where there is more than one collector, they must be
connected in parallel, with a means of adjusting the flow.
For surface soil heat, the hose should be buried at a
depth of about 1 metre and the distance between the
hoses should be at least 1 metres.
For several bore holes, the distance between the
holes must be at least 15m.
+2
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H o t w a te r5 1
°C
+2
0
-2
1
R
0
HM
f
lo
w
49
(
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°C
H
o
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9
400 – 2x300 m
140 – 170 m
Type
Surface soil heat,
Rock heat, recom-
recommended
mended active
collector length
drilling depth
7
325 – 2x250 m
120 – 140 m
12
2x250 – 2x350 m
160 – 190 m
The BWB-SS DC series must be transported and stored
upright and dry. The BWB-SS DC series may however be
carefully laid on its back when being moved into
a building.
Transport and storage
15
2x250 – 2x350 m
180 – 210 m
Overview of external structure
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