25
Base
Vibration isolators
-
It is recommended to use flexible connections which
absorb vibrations, prevent noise inside the ductwork and
allow access to the unit.
Fig. 28
-
38XTZ 007 and 008 units incorporate two feet in the base
(See Fig. 1 - unit base), with two holes to fix the unit to
the floor (see Figs. 8 and 9, Centre of gravity and Weight
distribution).
Models 38XTZ 011 to 024 incorporate fixing holes in the
base profile to attach the units to the floor (See Figs. 2, 3
and 4 and Figs. 8 and 9, Centre of gravity and Weight
distribution).
-
38XTZ 011 to 024 can have several types of vibration
isolator, as shown below:
Fig. 29
IMPORTANT: Units must be installed in accordance with
applicable local, national and European installation and
safety standards and regulations.
40ABZ/ALZ indoor units
These units have been designed for indoor installation, connected
to supply and return air ducts.
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IMP.
AIRE
TECHO
When selecting the installation site, observe the following
points:
-
Ensure that the condensate water collected in the drain pan
is correctly evacuated.
-
Leave sufficient clearance for installation and maintenance
(see Fig. 7 - Service clearances).
-
If the units are not ducted, ensure that the return air is
sufficient for the required air flow.
-
See Table 1, Physical Data, for unit weights and ensure
that the installation surface can support the unit weight.
-
In accordance with applicable standards and laws the unit
can be suspended from the ceiling or floor-mounted (see
Fig. 30).
IMP.
AIRE
TECHO
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Vibration isolators
Vibration isolators
Fig. 30
The units leave the factory with the air discharge set to
horizontal. It can be changed to vertical discharge by following
the steps below:
-
Change from horizontal (standard) to vertical discharge
with changing the position of the motor. See Figs. 31 and
32, depending on model.
a)
Detach the side access panels
.
b)
Remove the drive belt(s)
.
c)
Unscrew the fans from the brackets
securing them to
the base.
d)
Detach the rear panel with the fan outlets
and the top
panel
.
e)
For units 40ABZ 007, 008, 40ALZ 011, 014 change the
motor to the other fan.
f)
For units 40ABZ 016, 020, 024 detach the drive base
together with the motor
and reposition it on the
opposite side.
g)
Remove the fan pulley
and reposition it on the other
side.
Unit
Hexagonal nut
Washer
Flexible mounting
Base
Unit
Flexible mounting
Washer
Spring washer
Hexagonal nut
PNL 40 x 40 x 4
PNU 80 x 45 x 6
100 mm
Concrete base
ROOF
Supply
air
Supply
air
ROOF
