Idiomas disponibles
Idiomas disponibles
GB
3.
ELECTRICAL CONNECTIONS
WARNING:
- Before carrying out any electrical connection make sure that the units have been disconnected from the elec-
tricity supply and that the systems which the appliance must be connected to comply with applicable regula-
tions.
- Only use cables with a suitable section.
- Allow some extra length on the connection cables to allow for future maintenance.
- Never connect the power supply cable by cutting it in half as this could cause a blaze.
- If the power supply cable is damaged, it must be replaced by the manufacturer or by its technical assistance
service, or at least by a suitably qualifi ed individual, in order to prevent all hazards
3.1 Internal unit connection
1. Remove the terminal board cover.
2. Feed the internal unit/external unit connection cable from the rear of the internal unit
and prepare the tip of the cable.
3. Connect the conductors to the screw terminals in accordance with the numbering.
4. Use the wire clamp situated underneath the terminal board of the electrical connec-
tions.
5. Put the cover back in place, ensuring it is positioned correctly.
NOTE the connection cables must not pass near electrical boxes, wifi routers or other
cables.
3.2 External unit connection
1. Remove the cover.
2. Connect the conductors to the screw terminals using the same numbering used in the
internal unit. Screw the terminal board screws tightly to avoid any loosening.
3. Fasten the cables using the cable clamp.
4. Put the cover back in place, ensuring it is positioned correctly.
NOTE: remove the sheath from both ends of the connection wires in the cable as illus-
trated in the fi gure. Make sure the connection wires do not come into contact with the
piping or other metal parts.
Type of electrical connection
Model
Power supply
2,5 kW
220-240V˜50Hz
3,5 -5 kW
220-240V˜50Hz
7 kW
220-240V˜50Hz
NOTE: Electrical connection between the internal and external units must be performed
using a HO7RN-F cable
3.3 Connection to the electricity mains
The connection of the appliance must comply with European and national regulations and
must be protected by a 30 mA differential switch.
Connection to the electricity mains supply must be performed using a fi xed connection
(not with a mobile plug), equipped with an omnipolar switch complying with all applicable
CEI-EN regulations in force (minimum distance between contacts 3mm, switch preferably
equipped with fuses).
Proper connection to an effi cient earthing system is essential for ensuring the safe opera-
tion of the device.
26
15 mm
70 mm
Switch type
Connection wire
10 A
5G 1 mm
16 A
5G 1,5 mm
25 A
5G 2,5 mm
Power supply cable
2
2
3G 1 mm
2
3G 1,5 mm
2
2
2
3G 2,5 mm
L1
1
2N
S
L1
1 2N S
L N
POWER SUPPLY
(HO7RN-F)
