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Concrete base
•
If this type of installation is used, ensure that the units
are not affected by flooding, snow accumulation or
leaves.
•
Ensure that the units are secured to prevent injuries
to people handling or working on the units.
IMPORTANT: Rainwater, and in heat pump mode defrost
water, is drained through the unit base. For this reason the
units must be elevated above the concrete base to allow
correct drainage.
•
Rainwater and defrost water drainage
38UQZ units incorporate drillholes in the base in
order to correctly drain any condensate or rainwater
and defrost water which may enter the unit in the fan
area. Ensure correct drainage.
•
Provide suitable vibration isolators to prevent noise
transmission and vibrations during unit operation.
Base
Vibration isolators
•
The 38UQZ models incorporate fixing holes in the
base profile to attach the units to the floor.
•
38UQZ models can have several vibration isolator
types, as shown in Fig. 13.
IMPORTANT: Units must be installed in accordance with
applicable local, national and European installation and
safety standards and regulations.
16
Fig. 11
Fig. 12
Flexible mounting
PNL 40 x 40 x 4
Concrete base
40ALZ indoor units
These units have been designed for indoor installation,
connected to supply and return air ducts.
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 mainte-
nance (see Fig. 3 - 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. 14).
ROOF
Supply
air
Supply
air
ROOF
Fig. 13
Unit
Hexagonal nut
Washer
Flexible mounting
Base
Unit
100 mm
Washer
Spring washer
Hexagonal nut
PNU 80 x 45 x 6
Fig. 14
Vibration isolators
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