49
Inst
allation of the e
x
ternal unit
ARIANE
X
T
PL
US
INSTALLATION GUIDE
Warning
The appliance must be installed by a qualifi ed technician
who possesses the skills which are required by law.
EXTERNAL UNIT
Before installing the appliance
• The outdoor unit uses an ecological refrigerant liquid (type
HFC R-410A) that does not affect the integrity of the ozone
layer. The refrigerant R-410A operates at a higher pressure
of 50-70% to the refrigerant R22. Make sure that all the
materials used for maintenance and to fi ll the components
can be used with the refrigerant R-410A.
• The bottles containing refrigerant R-410A are equipped
with a dip tube which allows the liquid to fl ow only when
placed in a vertical position with the valve in the upper posi-
tion.
• The appliance should be fi lled with the indicated refrigerant
R-410A. Apply a dispenser, available on the market, on the
pipe sleeve, in order to vaporize the refrigerant before the
fl ow in the external unit.
• The refrigerant R-410A, as all fl uids HFCs, is only compa-
tible with the oils recommended by the manufacturer of the
compressor.
• The vacuum pump is not suffi cient to completely eliminate
the presence of humidity in the oil.
• POE type oils quickly absorb humidity. Do not expose oil to
air.
• Never open the appliance when it is in vacuum conditions.
• Do not throw the refrigerant R-410A in the environment.
• The oil contained in the compressor is extremely hygrosco-
pic.
• Ensure that, during the installation of the external unit, all
national regulations in terms of safety are observed.
• Make sure that the appliance is connected properly to the
ground. Check that the voltage and frequency of power
supply match those necessary to the external unit and that
the installed capacity is suffi cient to allow the functioning of
the appliance itself.
• Check that the impedance of the supply net corresponds to
the power input from the external unit as shown on the data
plate of this unit (EN 61000-3-12).
• Check that safety switches are correctly sized and connec-
ted to the external unit.
• The devices that protect the appliance from a power sup-
ply failure must allow the complete separation from the net,
according to the conditions specifi ed by Voltage Category III.
NOTE: The features and codes of the external unit are indicated
on the data plate..
Minimum distances to installation
150
500
150
300
150
500
150
1000
1000
1000
Choice of placement
• Avoid positioning the external unit in places which are dif-
fi cult to access for the subsequent installation and mainte-
nance .
Avoid placing it near sources of heat.
Avoid placing it in places where the external unit is subjected
to continuous vibration.
Do not place the external unit on structures that do not
guarantee support .
Avoid placing it in close proximity to fuel tanks of gas .
Avoid positioning that provides exposure to oil vapors .
Avoid positioning characterized by particular environmental
conditions .
• Choose a location where noise and air discharged from the
outdoor unit will not disturb the neighbors.
• Choose a position sheltered from the wind .
• Provide a placement that allows the maintenance of the
required installation distances .
• Avoid placing it in a location that prevents access to ports
and / or passageways.
• The structure of the soil surface should be able to support
the weight of the external unit and reduce as much as pos-
sible vibrations .
• If the external unit is installed in a location where there are
abundant snowfall , install the unit at least 200 mm above
the usual level of fallen snow or use a support bracket
