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Connecting to the heating system
Connecting to the heating system
Flushing the heating system
It is important that all previously mentioned preparations have been carried out
before the heat pump is connected to the heating system. Also ensure the pipe
system has been well fl ushed before it is connected to the heat pump. Flushing
protects the heat pump from contamination.
The heat pump is a part in a heating system. Faults in the heat pump can be
caused by poor water quality in the radiators/underfl oor coils or that air is
penetrating the system continuously. Oxygen causes corrosion products in the
form of magnetite and sediment. Magnetite has a grinding effect on the heat
pump pumps, valves and components with turbulent fl ows such as the condenser.
Heating systems which require regular fi lling or where the heating water is not
clear when drained, requires remedial measures before the installation of a heat
pump, for example the heating system must be fi tted with fi lters and vents. Do not
use any water treatment additives except agents for raising the pH level.
An intermediate heat exchanger is sometimes necessary to protect the heat pump.
Connecting the heat pump, electric boiler and
heating system
Use the information in section Dimensions, clearances and plumbing connections to
connect the different parts of the heating installation.
In addition, to avoid vibration transfer between the heat pump and the pipe system
we recommend fi tting fl exible hoses at the inlet and outlet of the heat pump.
Between the heat pump and the house we recommend 28 mm copper pipe for
lengths of less than 20 metres. The pipes must be insulated with a material, such
as Armafl ex, which cannot absorb moisture. Venting valves must be provided on
the pipes. Short outdoor pipes reduce heat losses.
Pump diagram
Diagram: Pump for heating system (G1)
Pos 3
Pos 2
Pos 1
Water ß ow [l/h and l/s]
Note
Only qualifi ed installers may carry
out the installation. The installer must
follow applicable rules and regula-
tions and recommendations from the
supplier.
14
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