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6 - OPERATION LIMITS
Inlet air conditions
Minimum temperature
Indoor coil
Maximum temperature
Minimum temperature
Outdoor coil
Maximum temperature
7 - POSITIONING AND INSTALLATION
7.1 - Storage
Important: It is prohibited to store and install the machine in an
explosive atmosphere zone (ATEX).
If it is necessary to store the unit for a period of time before its
installation, the following recommendations should be followed:
■ Do not remove the protective packaging and the transport
supports. The unit packed with plastic protective fi lm should not
remain exposed to the sun for long, as prolonged exposure of
the protective fi lm can deteriorate the unit's paint.
■ Store the unit on a fl at and horizontal surface.
■ It is highly recommended to store the unit in a dry place and
protected from the weather.
■ Supplied accessories must be stored in a dry and clean place
for future unit assembly.
■ The unit should always be stored under the following
environmental conditions:
- Minimum ambient temperature: -30°C
- Maximum ambient temperature: 50°C
- Maximum relative humidity: 95% (to avoid condensation).
7.2 - Choice of location
When choosing the location, whatever may be the selected fashion,
the following precautions have to be taken into consideration:
■ It is mandatory to comply with norm EN 378-3 on Safety and
Environmental Requirements. Part 3: "In situ" installation and
protection to people.
■ Important: In units with R-454B refrigerant consult the "Rooftop
A2L Installation guide" (Nb. 10714), which includes a set of
recommendations for choosing the most suitable site. It is the
customer's responsibility to carry out the risk analysis of the
installation.
■ Important: The unit performance is not guaranteed in case of
installation at an altitude of more than 1000 meters.
■ It is necessary to check that the structure supports the unit's
weigh (please consult the weight in section 7.5).
■ The area where the unit will be located must be perfectly
accessible for cleaning and maintenance operations (please
consult the "Recommended service clearance" in section 7.6).
■ Since the unit is designed to work outdoors, some specifi c
installation norms must be followed:
10
Cooling
Heating
50FF
50FC
50FC
9,7ºC WB
10ºC
24ºC WB
27ºC
-10ºC (1)
-15ºC WB (2)
52ºC
48ºC
15ºC WB
(1) With a condensation pressure control disabled operation up to
+12ºC.
(2) When the outdoor temperature is usually below 5ºC WB, the
installation of a support element is recommended.
- The unit will be located on the roof of the premises. If it is
foreseen that it will work more on heating than on cooling, it
is preferable to direct the coil towards the sun. If little work
on heating is foreseen, choose North direction.
- Avoid placing obstacles in the air supply or return. No obstacle
may impede the air aspiration into the coils. Do not fi x the
outdoor coil side in the predominant wind direction.
- Do not install the unit in a closed enclosure or in conditions
that originate air recirculation.
- The chosen location must not fl ood and must be above the
average height the snow reaches in that region.
General information on potentially fl ammable zone and
ignition sources (R-454B refrigerant)
The full unit, including all options & accessories that are delivered
by the manufacturer, has been qualifi ed for the use with A2L
refrigerant.
For that purpose, the manufacturer complies with EN 378-2 §6.2.14
and defi ned potentially fl ammable zone using EN 60079-10-1 in
order to identify where ignition sources must not be present. Then
the manufacturer designed the machine in order that, if the unit
is used the way it was designed for, there is no internal ignition
source in the internal potentially fl ammable zone.
Thus, the only residual risk is to have an ignition source introduced
in the potentially fl ammable zone by the user. For that purpose,
the manufacturer decided to represent the external potentially
fl ammable zone where the user must not introduce ignition source.
50FC 020 - 047
0,6m
0,6m
0,6m
0,6m
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