Installation Guide; External Unit; Before Installing The Appliance; General Recommendations - Elco Aerotop Split M-Rx Guide D'installation

Installation guide

External Unit

Warning
The appliance must be installed by a
qualifi ed technician in possession of
the skills required by law.

Before installing the appliance

• The outdoor unit uses an ecological
refrigerant liquid (type HFC R-410A)
that does not aff ect the integrity of
the ozone layer. Refrigerant R-410A
operates at a pressure 50-70% higher
than refrigerant R22. Make sure that
all the materials used for mainte-
nance and to fi ll the components can
be used with 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 position.
• 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 it
fl ows in the external unit.
• The refrigerant R-410A, as all HFC
fl uids, is only compatible with the oils
recommended by the compressor
manufacture.
• The vacuum pump is not suffi cient to
completely eliminate the presence of
humidity in the oil.
• POE type oils quickly absorb humi-
dity. 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 hygroscopic.
• Ensure that, during the installation of
the external unit, all national regula-
tions in terms of safety are observed.
• Make sure that the appliance is
connected properly to the ground.
Check that the voltage and frequen-
cy of power supply match those ne-
cessary to the external unit and that
the installed capacity is suffi cient
to allow the functioning of the ap-
pliance 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 correc-
tly sized and connected to the exter-
nal unit.
• The devices that protect the ap-
pliance from a power supply failure
must allow the complete separation
64 / GB
from the net, according to the condi-
tions specifi ed by Voltage Category
III.
NOTE: The features and codes of the
external unit are indicated on the data
plate.

General recommendations:

- Suction of air should not be against
main wind direction
- Leafs can block or soil the evaporator
- Ensure that minimum air volume
fl ow is always maintained
- On air fl ow side condensate on walls,
caused by cold air, could occur
- Try to have very short distances
between IDU and ODU
- Try to have most of the refrigerant
pipes outside the building
- Observe the max distances and
height diff erence between IDU and
ODU

Choice of placement

• Avoid a mounting where the ODU is
surrounded by walls
• Avoid a mounting in sinks. Cold air
sinks down and by that air short cir-
cuit could occur.
• Avoid positioning the external unit
in places which are diffi cult to access
for the subsequent installation and
maintenance.
• Avoid placing it near sources of heat.
• Avoid placing it in places where the
external unit is subjected to conti-
nuous 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 a positioning that provides ex-
posure to oil vapors.
• Avoid a 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
compliance to the required installa-
tion distances.
• Avoid placing it in a location that
prevents access to ports and / or pas-
sageways.
• The structure of the soil surface
should be able to support the weight
of the external unit and reduce as
much as possible 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.
• In case of installation of the unit in
places with strong winds, the use
of windbreaker barriers is recom-
mended.
Minimum distances to installation (mm)
1000
150
150
300