30
HBI. 1011. 4138500_00
23. ELECTRIC WIRING
Main principles
The electric cables. equipment
and connectors supplied for
use on site must be in compli-
ance with the provisions of the
Standards and design requi-
sites.
Only qualifi ed electricians can
connect the cables on site.
Cut the electric power supply
off before making the connec-
tion.
The installer is liable for any
damage caused by an improp-
er connection of the outdoor
unit circuit.
Attention --- copper electric cables
MUST be used.
Connection of the electric cable to the
unit electric cabinet
The electric cables must be positioned
through the relevant hole, pipe or cable
trough.
The electric cables to connect in the elec-
tric cabinet must be protected with rub-
ber or plastic in order to prevent scratch-
es with the edge of the metal plate.
The electric cables near to the electric
unit must be fi xed in a stable manner in or-
der to release the electric terminal of the
cabinet from an external force.
The electric cable must be connected to
earth correctly and safely.
Specifi cations of the electric power sup-
ply cable and the differential switch
To make the selection, we recommend
observing the electric cable specifi ca-
tions and of the types of differential
switches stated in the following table.
Model
Electric power
supply
differential switch:
Minimum section of the
earth cable
Minimum section of the
power supply cable
(A) (mm
2
) (mm
2
)
HBI080E
230V50Hz
50 10 3 x 10
HBI100E 50 10 3 x 10
HBI120E 50 10 3 x 10
HBI140E 50 10 3 x 10
HBI160E 50 10 3 x 10
HBI080C 32 6 3 x 6
HBI100C 32 6 3 x 6
HBI120C 40 10 3 x 10
HBI140C 40 10 3 x 10
HBI160C 40 10 3 x 10
ATTENTION:
The electric cables have a copper core
and copper connectors must be used for
the connection of the electric cable.
The differential switch is necessary for fur-
ther installations.
If life-saving devices are used with differ-
ential protection, the reaction time must
be less than 0.1 seconds, the differential
circuit must be 30mA.
The diameters of the electric cables se-
lected above are established assuming a
distance from the distribution cabinet to
the unit that is less than 75 m.
If the cables are placed at a distance be-
tween 75 m and 150 m, the diameter of
the electric cable must be increased to
the next level.
The internal/external power supply cable
must be H05RN-F or over.
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