Nimbus Compact M NET R32 Installation Manual UK

Electrical connections
The cross-sectional size of the cables used must comply with the system power (see data plate).
The cross-sectional size of the power cables indicated in the table must be regarded as the minimum cross-sectional -size.
i
Prior to accessing the terminals, all the supply circuits must be disconnected.
OUTDOOR UNIT
35 M 50 M 80 M 80
M-T
NIMBUS M EXT R32
Rated current / live A 11,0 13,5 20,0 7,6 22,5 9,0 26,9 11,0
Maximum current / live A 11,7 14,3 21,3 8,1 23,9 10,0 28,7 12,2
Thermal cut-out size A C-16 C-20 C-32 C-13 C-32 C-13 C-32 C-16
Residual-current circuit breaker
mA F-30 / B-30 B-30 F-30 / B-30 F-30 / B-30
(RCCB) size
B-30
B-30
Surge current A < 3
Rated voltage V 230 230 230 400 230 400 230 400
Permissible voltage fields V 216-
243
216-
243
216-
243
376-
424
216-
243
376-
424
216-
243
376-
424
Cos phi > 0,9
Power supply wiring Reference H07RN-F
Cable min. cross-sectional
3G4 3G4 3G4 5G2,5 3G6 5G2,5 3G6 5G2,5
size
Max. diameter [mm] 14 16,2 16,2 17 17 17 18 18
Recommended cable 3G4 3G4 3G6 5G4 3G6 5G4 3G6 5G4
cross-sectional size
Communication cabling Reference H05RN-F
Cable cross-sectional
3 x 0,75mm 2
size
Max. length
50 m
The power supplies of the indoor and outdoor units must be connected respectively to a dedicated residual-current circuit breaker
(RCCB) with a minimum threshold of 30 mA. For units equipped with an inverter (outdoor unit), we recommend using type B
residual-current devices for 3 ph power supplies and type B or F devices (depending on the electrical system to which they are
connected) for 1 ph power supplies. For units lacking an inverter (indoor unit), a type A residual-current device will suffice. The type
of connection must nonetheless be made in a workmanlike manner by qualified personnel in order to comply with the national
regulations in force.
Main power supply table.
INDOOR UNIT NIMBUS FS-UK M R32 NIMBUS FS-L-UK M R32
Power supply V - ph - Hz 230 - 1 -50 400 - 3 -50 230 - 1 -50 400 - 3 -50
Permissible voltage fields V 196 ÷ 253 340 ÷ 440 196 ÷ 253 340 ÷ 440
Nominal absorbed power kW 4 4 6 6
Maximum current A 19,1 9,6 30 10
Thermal cut-out A C-25 C-16 C-32 C-16
Residual-current circuit breaker
mA A-30
(RCCB) size
Power supply wiring Reference H07RN-F
Cable min. cross-sectional
3G4 5G2,5 3G6 5G2,5
size
Max. diameter [mm] 16,2 17 18 17
Recommended cable 3G4 5G4 3G6 5G4
cross-sectional size
Max. diameter [mm] 16,2 19,9 18 19,9
EDF, AFR, PV signal cabling mm 2 H05RN-F 2 x 0,75 mm 2 - H07RN-F 2 x 1,0 mm 2
Note: in making the connection between the communication cable from the indoor unit to the outdoor unit, use a shielded cable
to prevent interference problems.
120
M
120
M-T
150
M
150
M-T
34 / EN