Assembly; General; Connection On The Heating Side - Dimplex La 9Tu Montage- Und Gebrauchsanweisung

6

Assembly

6.1 General

The following connections need to be established on the heat
pump:
Flow and return of the heating system
Condensate outflow
Control line to the heat pump manager
Power supply
All panelling can be removed to allow accessing the inside of the
device.
Loosen the screws for this purpose. The lower panels can be re-
moved toward the top when slightly tilted.
3.
2.
2.
1.
1.
Opening the lower cover panels
The upper panels are hooked into the cover panel. Loosen the
two screws for dismantling and unhook the panels by pulling
them back.
3.
1.
1.
2.
2.
Opening the upper cover panels

6.2 Connection on the heating side

The heating system connections on the heat pump are to be
made inside the device. Refer to the device information for the
connection sizes. Route the connection hoses out of the device
in a downwards direction. An optional pipe kit is available as an
accessory, which can be used to lead the connections out to the
side. Use a spanner to firmly grip the transitions when connect-
ing the heat pump.
Before connecting the heating water system to the heat pump,
the heating system must be flushed to remove any impurities,
residue from sealants, etc. Any accumulation of deposits in the
liquefier could cause the heat pump to completely break down.
Once the heat pump has been connected to the heating system,
it must be filled, de-aerated and pressure-tested.
Consideration must be given to the following when filling the sys-
tem:
www.dimplex.de
1.
2.
2.
3.
3.
Closing the lower cover panels
1.
3.
3.
2.
2.
Closing the upper cover panels
Untreated filling water and make-up water must be of drink-
ing water quality
(colourless, clear, free from sediments)
Filling water and make-up water must be pre-filtered (pore
size max. 5µm).
Scale formation in hot water heating systems cannot be com-
pletely avoided, but in systems with flow temperatures below
60°C the problem can be disregarded.
With medium and high-temperature heat pumps, temperatures
above 60°C can be reached.
The following standard values should therefore be adhered to
concerning the filling water and make-up water (according to VDI
2035 Sheet 1):
Total alkaline earths
Total heat
in mol/m³ and/or
output in [kW]
mmol/l
≤
up to 200
≤
200 to 600
> 600 < 0.02
Minimum heating water flow
The minimum heating water flow of the heat pump (see device in-
formation chapter 11, section 4.1) must be ensured in all operat-
ing states of the heating system. This can be accomplished, for
example, by installing either a manifold without differential pres-
sure or an overflow valve.
Antifreeze
Manual drainage (see illustration) should be provided for heat
pumps which are exposed to frost. The antifreeze function of the
heat pump manager is active whenever the manager and the
heat circulating pump are ready for operation. If the heat pump is
taken out of service or in the event of a power failure, the system
has to be drained. The heating circuit should be operated with a
suitable antifreeze if heat pump systems are implemented in
buildings where a power failure cannot be detected (holiday
home).
6.2
Total
hardness in dH
≤
2.0 11.2
≤
1.5 8.4
< 0.11
EN-5