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7
Transport and storage
The DC BWA-SS series must be transported and stored
upright and dry. The DC BWA-SS series may however be
carefully laid on its back when being moved into
a building.
Installation
DC BWA-SS series is placed on a firm base, preferably a
concrete floor or foundation. Install DC BWA-SS 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.
Guideline values for collectors
Type
Surface soil heat,
recommended
collector length
7
325 – 2x250 m
9
400 – 2x300 m
12
2x250 – 2x350 m
15
2x250 – 2x350 m
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.
General information for the installer
H M flo w 4 9 (5 0 )
H o t w a te r5 1 °C
°C
-2
0
+ 2
0
R
1
Rock heat, recom-
mended active
drilling depth
120 – 140 m
140 – 170 m
160 – 190 m
180 – 210 m
Inspection of the installation
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.
Notice
1. in line filter on the return line;
2.To clean system with a power flush before installing
the heat pump and fill with clean water;
3. To use flow gauge to get the correct flow for each unit.
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