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6 - POSITIONING AND INSTALLATION
6.1 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.
- The area where the unit will be located must be perfectly
accessible for cleaning and maintenance operations (check
minimum free space for maintenance). Leave enough space
for air circulation around the unit.
- It is necessary to check that the surface of the fl oor or the
structure supports the weight of the unit (please, consult
the weight of the unit in the section "Centre of gravity
coordenates").
- It is necessary to ensure that the surface where the unit is
going to be installed in completely fl at. Any defect in the
preparation of the unit support surface translates into stresses
on the structure, which may result in its deformation.
- These units can be installed on the fl oor or on a brick frame
or steel profi le. Based on the fi xing solution defi ned in the
installation project, it will be necessary to plan the placement
in the base of threaded rods in the expectation that the unit
supports can be fi xed later on. To do so, it is recommended
that a template be made with the heights corresponding to
the fi xings.
Foresee appropriate damping devices in these fi xings
to ensure that noise and vibration transmission is
avoided (refer to the section "Anchorage for silent-
blocks").
- In the event of assembling directly on silent-blocks to the
ground, it is recommended that a template of the unit's footprint
with the anchoring points of the silent-blocks be made.
- With the help of the crane or the forklift truck, the unit will
be raised to a suffi cient height that the silent-blocks can be
screwed into its base. The 4 silent-blocks of the corners must
remain oblique and the interiors (if these exist) perpendicular
to the unit.
All indoor units are designed for their indoor installation,
connected to a duct network.
Necessary precautions must be taken to prevent the recirculation
of air as well as obstructions.
- All models can be installed on the fl oor or on a brick frame or
steel profi le.
- Models 90 through 360 can be attached to the ceiling using
the threaded rod:
• Insert in the framework ceiling 4 threaded rods.
• Insert the rods through the holes the unit has in its base.
• Place the antivibration mounts, insert a washer and turn the
nuts until the unit is well secured.
• If there is enough space between the framework and the
unit, a rubber or neoprene plate can be squeezed in.
• Once these operations are fi nished, a false ceiling can be
mounted to hide the unit, leaving a register cover to perform
the maintenance and fi lter cleaning operations.
The fi lter is mounted on a rail that can be removed from the
side or from the base, to replace or clean it.
holes for threaded
rods, 15mm
• Also, in case the installation has an air return which is not
ducted, appropriately-sized grids must be foreseen in the
space formed by the ceiling, the framework and the walls so
that the unit aspires the return air from the air conditioned
spaces.
6.2 Sound level
These units have been designed to operate with a low sound
level. In any case, in the design of the installation, it must be
taken into consideration:
- the outdoor environment for the acoustic radiation,
- the type of building for the noise transmitted in the air and the
solid elements for the vibration transmission.
If necessary, a study must be commissioned to an acoustic
technician.
Sound power level
Sound power level in the indoor fan outlet to be taken into
account for the silencer calculation:
40ZS/ZF
90
100
Total dB(A)
79
82
40ZS/ZF
240
320
Total dB(A)
82
83
panels for
fi lter removal
120
160
180
182
200
80
80
80
82
360
420
485
540
600
85
86
87
89
85
92
7
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