Dimensions and pipe connec-
tions
620
600
560
70
1775
XXX*
XXX*
25-50
25
50
130
210
390
470
525
XXX*
XXX*
;/ ;/ ;/;/ ;/ ;/
Pipe dimensions
12
kW
5-10
kW
Connection
28(mm)(XL6)/(XL7) Brine in/out ext Ø
2822(mm)(XL1)/(XL2) Heating medium
flow/return ext Ø
22(mm)(XL3)/(XL4) Cold/hot water Ø
Brine side
Collector
Rock heat, recom-
mended active
drilling depth (m)
Surface soil heat,
recommended col-
lector length (m)
Type
70-90200-3005kW
90-110250-4006kW
120-140325-2x2508kW
140-170400-2x30010 kW
160-1902x250-2x35012 kW
Applies to PEM hose 40x2.4 PN 6.3.
These are rough example values. At installation the correct
calculations must be made according to local conditions.
Caution
The length of the collector hose varies depend-
ing on the rock/soil conditions, climate zone and
on the climate system (radiators or underfloor
heating).
Max length per coil for the collector should not exceed
400 m.
In those cases where it is necessary to have several collect-
ors, these should be connected in parallel with the pos-
sibility for adjusting the flow of the relevant coil.
For surface soil heat, the hose should be buried at a depth
determined by local conditions and the distance between
the hoses should be at least 1 metre.
For several bore holes, the distance between the holes
must be determined according to local conditions.
Ensure the collector hose rises constantly towards the
heat pump to avoid air pockets. If this is not possible,
airvents should be used.
As the temperature of brine system can fall below 0 °C
it must be protected against freezing down to -15 °C. 1
litre of ready mixed brine per meter of collector hose
(applies when using PEM-hose 40x 2.4 PN 6.3) is used as
a guide value when making the volume calculation.
Side connection
It is possible to angle the brine connections, for connec-
tion to the side instead of top connection.
To angle out a connection:
1.
Disconnect the pipe at the top connection.
2.
Angle the pipe in the desired direction.
3.
If necessary, cut the pipe to the desired length.
* Can be angled for side connection.
13Chapter 4 | Pipe connectionsNIBE™ F1245
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