60 / GB
TABLE OF ELECTRICAL CONNECTIONS
EXTERNAL UNIT
40 S EXT
50 S EXT
70 S EXT
70 S-T EXT
90 S-T EXT
110 S-T
EXT
Nominal running current / phase
A
6.4
8
11
3.8
6
7.3
Maximum running current / phase
A
9
11
16
5.4
8.4
10
Circuit breaker size
A
16-C type
16-C type
20-C type
10-C type
12-C type
12-C type
Nominal Voltage
V
230
230
230
400
400
400
Operating voltage limits
V
216-243
216-243
216-243
376-424
376-424
376-424
Cos phi
> 0,9
Power supply cable
Reference
H07RN-F
3G4
3G4
3G4
5G4
5G4
5G4
Max φext
16.2
16.2
16.2
19.9
19.9
19.9
Communication cable
Reference
H05RN-F
Type
3x0.75mm
2
INTERNAL UNIT
WH 40 50 S
WH 70 S
WH 90 110 S
Electrical supply
V - ph - Hz
230 - 1 -50
230 - 1 -50
400 - 3 -50
230 - 1 -50
400 - 3 -50
Admitted voltages fi eld
V
196 ÷ 253
196 ÷ 253
340 ÷ 440
196 ÷ 253
340 ÷ 440
Rated power input
kW
4
4
6
Max current
A
18
18
30
10Axph, 30AxN
Thermal cutout/
diff erential circuit breaker
A
20A - type B
20A - type B
32A - type B
Supply cable dimensions
H07RN-F 3 x 4 mm
2
Wiring signal EDF, AFR, PV
mm
2
H07RN-F 2 x 0,75 mm
2
Supply cable
mm
2
H07RN-F 3 x 4 mm
2
MOD BUS cable
mm
2
H07RN-F 3 x 0,75 mm
2
Power supplies of the indoor and the outdoor units are to be respectively connected to a circuit breaker (RCCB) with minimum threshold of 30 mA.
ATTENTION
The electrical connections shall be made after completing all hydraulic connections.
The internal and external units must be powered separately according to what is indicated on the tables. Between the internal
and external units should also be made a MOD BUS connection. This connection may be made through the use of a cable of
reduced section (recommended section 0,75 mm
2
). Do not let this cable walk along a power connection.
Electrical circuit
• Check that the voltage and frequency of power supply from the network coincide with the data shown in the data plate of the
appliance (see table)
• In order to ensure greater security, the main electrical system should be checked by a qualifi ed technician before proceeding
with the installation (see note).
• The manufacturer is not liable for any damage caused by installation with improper grounding or abnormalities in the electrical
system.
• Check that the installation is adequate to support the power consumption of the installed units, indicated on the data plate of
the product.
• The electrical connections must be carried out with the aid of a fi xed supply connection (do not use mobile sockets) and equip-
ped with a bipolar switch, having a distance between the contacts of at least 3 mm.
• It is essential to connect the appliance to a correctly grounded electrical circuit, as to ensure the safety of the installation.
It is also forbidden to use for the grounding of the system and the hydraulic connection of the heating tubes.
• The manufacturer is not liable for any damage caused by installation with improper grounding or implant level anomalies elec-
tric.
• Connect the power cord to a 230V-50Hz or (400V-50Hz), verifying the polarizations of the L-N (or L1, L2, L3, N) connection and
the connection to the earth. The section of the used cables must comply with the power of the installation (see plate characte-
ristic).
• For the electrical connection of the installation, you shall not use power strips, extension cords and adapters. It is also prohibited
to use the hydraulic pipes and heating system pipes to ground the installation.
The system is not protected against lightning. If you need to change the fuses, use fast fuses.
Warning: Before obtaining access to terminals, all supply circuits must be disconnected.
ELECTRICAL WIRING
Summary of Contents for 3300919
Page 8: ...8 IT 1106 383 1016 670 ø 10 374 1506 383 1016 670 ø 10 374 70 S 70 S T EXT 9 0 110 S T EXT ...
Page 22: ...22 IT SCHEMA ELETTRICO QUADRO UNITÀ ESTERNA 3 ph 1 ph ...
Page 50: ...50 GB 1106 383 1016 670 ø 10 374 1506 383 1016 670 ø 10 374 70 S 70 S T EXT 90 110 S T EXT ...
Page 64: ...64 GB 3 ph 1 ph ELECTRICAL SCHEME BOX OF EXTERNAL UNIT ...
Page 86: ...86 IT ...
Page 87: ...87 IT ...
