32
Electrical connections
a
CAUTION
Equip each outdoor unit with an electrical
disconnector. The installation of this is
mandatory to ensure compliance with the
safety standards and to disable each module
in case of failure, avoiding system shutdown.
f
ATTENTION ELECTRIC DANGER
The power line must be connected to the L - N
terminals of the internal sections.
Be careful not to confuse the terminal blocks
for the power supply with those for the bus
line.
f
ATTENTION ELECTRIC DANGER
Separate power sources must be provided for
the indoor units and for the outdoor unit.
5.2 Power supply line
The cable must be connected to the terminal block using
only crimped cables with eyelet wire terminals
Fig. 47
a
CAUTION
First connect the power cord and terminals,
then secure the cables.
When installing the main power cable, strip the
proper amount of insulation according to the
method of attachment and positioning of the
cable clip.
When tightening the three screws, the twist
length must ensure that when 100N of force is
applied on the cable, the sagging is less than
2mm. Excessive tightening of the screws can
damage the protective cover of the power
cable.
The lower part of the clip (1) is fixed on the electrical
panel, under the terminals. The upper part (2) is supplied
together with the other accessories. Secure the top with
the screws (3) supplied.
If the cross-section of the cable (4) is less than 10 mm
2
, fix
the cables together
If the cross-section of the cable (4) is greater than 10 mm
2
,
fix the cables separately.
When stripping the outer insulation sheath, make sure
that the length of the stripping plus the length of the
terminal is between 100 and 200 mm
4
1
2
3
Fig. 48
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