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Translation from original instructions
To fix the power cable, use power cable fixing systems that resist tensile and torsional stresses.
The weight of the cables must not be borne by the electrical connection system.
Make sure no voltage is present before carrying out any operation on electrical parts.
The cross-section of the cable and the line protection devices must correspond to those indicated in the
wiring diagram.
If you use a residual current device to protect the power line, in units with inverter, use type "B" or "B+" resi
-
dual current devices, with minimum tripping threshold of 300 mA and delayed tripping.
Potential free contacts are available as accessory for controlling the pumps.
If the potential free contacts for controlling the pumps are present, connect the pumps as shown in the wiring
diagram.
The electrical connections to potential-free contacts, which are powered by external sources, must be sui-
tably protected against overcurrent and earth faults.
The circuit of the potential-free contacts inside the electrical control panel is made using orange cable.
Where installation of a probe for measuring the external air temperature is envisaged, it must be placed so
that the measurement is not affected by the sun.
Units with remote heat exchanger (LC) envisage electrical connections between the two parts.
To carry out the connections, refer to the wiring diagram of the unit and to the documentation supplied with
the remote heat exchanger.
If a dry cooler is present, to carry out the connections, refer to the wiring diagram of the unit and to the docu-
mentation supplied with the dry cooler.
In FC/NG units, refer to the wiring diagram for the connections to be carried out by the installer.
In particular, pay attention to the connection of the servo control of the three-way valve as shown in the
wiring diagram if supplied by the Manufacturer, or, if the valve is not supplied by the Manufacturer, use the
instructions provided with it for connection and check its correct operation.
