Precautions In Winter And In Seasonal Winds; Indoor Unit Installation; General; Heating System Connection - Dimplex LAW 9IMR Instructions D'installation Et D'utilisation

LAW 9IMR - LAW 14ITR
5.2.3 Installation in coastal areas
NOTE
The air-to-water heat pump must NOT be installed in areas where
corrosive gases such as acids or alkaline gases can occur.
NOTE
If the outdoor unit is installed in a coastal area, direct sea wind should be
avoided.
Case 1: If the outdoor unit is installed in a coastal area, direct sea
wind should be avoided. Install the outdoor unit in the opposite
direction to the sea wind.
Sea wind
Sea wind
Case 2: If the outdoor unit is installed in the direction of the sea
wind, set up a wind guard to catch the sea wind.
 The wind guard must be robust enough to catch the sea
wind (e.g. made from concrete).
 The height and width of the wind guard must correspond to
at least 150% of the outdoor unit.
 A distance of at least 700 mm from the outdoor unit must be
maintained to guarantee sufficient air flow.
Wind protection
Sea wind
NOTE
If the outlined requirements cannot be complied with during installation
in coastal areas, please contact Dimplex employees for more information
on corrosion protection.
NOTE
Dust or salt soiling on the heat exchanger should be regularly cleaned (at
least once a year) with water.
EN-6
5.3 Precautions in winter and in
seasonal winds
 In snowy areas or extremely cold locations, adequate pro-
tective measures must be taken to guarantee that the unit
continues functioning correctly.
 Install the outdoor unit so that snow cannot fall directly on
the unit. If snow collects on the air inlet and freezes, errors
can occur. Install a cover in areas with snowfall.
 When installing the outdoor unit in areas where there is a lot
of snowfall, ensure the unit is installed at least as high as the
level of an average snowfall (average annual snowfall).
 If more than 100 mm snow collects on the outdoor unit, the
snow must be removed prior to operation.
NOTE
The intake and outlet opening of the outdoor unit should not be
positioned against the wind if possible.
6

Indoor unit installation

6.1 General

The following connections need to be established on the indoor
unit:
 Flow / return of the heating system
 Safety valve outflow
 Power supply
 Domestic hot water pipe
 Circulation pipe (optional)
 Cold water pipe
 Voltage supply
 Split refrigerant pipe
NOTE
When removing the unit cover, it must be taken into account that the
length of the connecting cable between the control panel in the unit cover
and the controller on the contact plate is only 1.5 m. If the device cover
can only be placed further away than this when it has been removed, the
plug connection on the controller or on the control panel must first be
disconnected.

6.2 Heating system connection

The heating system connections on the indoor unit have a 1 1/4"
flat sealing external thread. A spanner must be used to firmly grip
the transitions when making the connections.
A ¾" dimensionally stable plastic hose (external diameter ap-
prox. 19 mm) (in the area behind the split pipe connections)
leads from the safety valve to the outside. This hose must be fed
into a syphon or drain with the extension required at the site.
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 may cause the heat pump to completely break down.
Once the heat pump has been connected to the heating system,
it must be filled, purged and pressure-tested.
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