Ariston NIMBUS PLUS S NET Manual page 64

Power supplies of the indoor and the outdoor units are to be respectively connected to a Residual Current operated Circuit-Breaker
(RCCB) with threshold of 30mA. For inverter driven units (outdoor unit), It is advisable the use of type B residual current device for 3Ph
power supplies and type B or F for 1Ph power supplies (depending on the electrical system to which it is connected). For the units
without inverter, (indoor units) a type A Residual current device is sufficient. The type of connection must in any case be carried out in
a workmanlike manner by qualified personnel in compliance with the national regulations in force.
INTERNAL UNIT
Electrical supply
Admitted voltages field
Rated power input
Max current / phase
Thermal cutout circuit breaker
Differential circuit breaker size (RCCB)
Power supply cable
Wiring signal EDF, AFR, PV
MODBUS cable
Note: To avoid interference problems in the connection between the MODBUS cable from the internal unit to the external unit, use a
shielded cable.
64 / GB
WH 40-50 S
230 - 1 -50
V - ph - Hz
196 ÷ 253
V
4
kW
19.1
A
25 - C type
A
mA
Reference
3G6
Min. cables section
18
Max diameter [mm]
Recommended
3G6
cables section
18
Max diameter [mm]
mm 2
mm 2
WH 70 S
230 - 1 -50 400 - 3 -50
196 ÷ 253 340 ÷ 440
4 4
19.1 9.6
12 - C type
25 - C type
13 - C type
30 - A type
3G6 5G2.5
18 17
3G6 5G4
18 19.9
H05RN-F 2 x 0,75 mm
2
H05RN-F 3 x 0,75 mm
2
WH 90-110 S
230 - 1 -50 400 - 3 -50
196 ÷ 253 340 ÷ 440
6 6
30 9.6
12 - C type
32 - C type
13 - C type
3G6 5G2.5
18 17
3G6 5G4
18 19.9