General
Pipe installation must be carried out in accordance with
applicable regulations. See manual for compatible NIBE
air/water heat pump for installation of the heat pump.
The pipe dimension should not be less than the recom-
mended pipe diameter according to the table. However,
each system must be dimensioned individually to man-
age the recommended system flows.
MINIMUM SYSTEM FLOWS
The installation must be dimensioned at least to manage
the minimum defrosting flow at 100% pump operation,
see table.
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimum
flow during
defrosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.27F2120-8
(1x230V)
22200.27F2120-8
28250.35F2120-12
(1x230V)
28250.35F2120-12
28250.38F2120-16
35320.48F2120-20
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimum
flow during
defrosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.19F2040-6
22200.19F2040-8
22200.29F2040-12
28250.39F2040-16
Minimum re-
commended
pipe dimen-
sion (mm)
Minimum re-
commended
pipe dimen-
sion (DN)
Minimum
flow during
defrosting
(100% pump
speed (l/s)
Air/water
heat pump
22200.19HBS 05-6/
AMS 10-6
22200.19HBS 05-12/
AMS 10-8
22200.29HBS 05-12/
AMS 10-12
28250.39HBS 05-16/
AMS 10-16
NOTE
An undersized system can result in damage to
the machine and lead to malfunctions.
13Chapter 4 | Installing the installationNIBE SMO S40
4 Installing the installation
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