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5.6
Pipe connections
To avoid noise in water pipes, all
pipes must be connected with flexible hoses.
All pipes and hoses throughout the heating
system must be of diffusion-tight design.
Both old and new pipe system must be properly cleaned before the
heat pump is connected so that any impurities do not damage the
heat pump.
When installing to an old system it is especially important that the
system is cleaned.
We recommend that a dirt filter is mounted on the return pipe and preferably a
filter-fitted ball valve according to the picture above.
If there are high levels of magnetite particles in the circulating water (black
circulation water), a magnetite filter should also be installed.
Note that the product warranty does not cover damage caused by dirt or
contaminants in the heating system.
5.7
Radiator system
The radiator system must be dimensioned so that the supply temperature does not
exceed 60° C.
If not, the radiator system must be modified or supplemented with additional
radiators.
5.8
Floor Heating System
The circulation pump capacity is stated under the heading Pump Diagram (section
19) and in Technical Data (section 24).
The built-in circulation pump is usually sufficient for most floor heating systems.
5.9
Radiator and floor heating system
If part of the house have radiators and part have underfloor heating, the radiator
part must be connected directly to the heat pump. The floor heating system must be
connected via a separate shunt group with its own circulation pump.
Exceptions can be made in the event that the radiators are so dimensioned that
they can function with the same supply temperatures as the floor part.
In this case, the radiator part and the floor part must be connected in parallel directly
to the heat pump.
There are two different heating zones that can be controlled
via the heat pump. A function that is useful when heating the house with both
radiators and underfloor heating.
See section 14.9.
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