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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.
● 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").
● The area where the unit will be located must be perfectly
accessible for cleaning and maintenance operations (please
consult the "Recommended service clearance").
● Leave enough space for air circulation around the unit.
● Since the unit is designed to work outdoors, some specifi c
installation norms must be followed:
- 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.
Preparation of the ground
● 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 curb 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").
Antivibrators assembly (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. For their placement in the supports,
M10 or M12 (depend on the model) metric threads have been
provided.
8
6.2 Anchorage for silent-blocks
38ZS/ZF -
90 to 320
38ZS/ZF -
360 to 600
A
B
38ZS/ZF
(mm)
(mm)
90 to 182
1.257
967
200 to 320
1.557
967
A
B
38ZS/ZF
(mm)
(mm)
360 to 600
907
2.101
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