Safety Device Requirment; Remove The Switch Box Cover - Ferroli OMNIA UE 3.2 Manual De Instalación Y Del Propietario

8.3 Safety device requirment

1. Select the wire diameters( minimum value) individually for each unit based on the table 8-1 and table 8-2，
where the rated current in table 9-1 means MCA in table 9-2. In case the MCA exceeds 63A, the wire diameters
should be selected according to the national wiring regulation.
2. Select circuit breaker that having a contact separation in all poles not less than 3 mm providing full
disconnection，where MFA is used to select the current circuit breakers and residual current operation
breakers:
Table 8-1
Table 8-2
Outdoor Unit
System
Voltage
(V)
1
4kW
220-240
1
6kW
220-240
8kW
220-240
1
10kW 220-240
1
12kW 220-240
14kW 220-240
1
16kW 220-240
12kW 3-PH
380-415
1
14kW 3-PH 380-415
16kW 3-PH 380-415
MCA : Max. Circuit Amps. (A)
TOCA : Total Over-current Amps. (A)
MFA : Max. Fuse Amps. (A)
MSC : Max. Starting Amps. (A)
RLA : In nominal cooling or heating test condition，the input Amps of compressor where MAX. Hz
can operate Rated Load Amps. (A);
KW : Rated Motor Output
FLA : Full Load Amps. (A)

8.4 Remove the switch box cover

Unit 4kW
Maximum
overcurrent 18
protector(MOP)(A)
2
4.0
Wiring size(mm )
Stated values are maximum values (see electrical data for exact values).
Rated current Nominal cross-sectional area (mm )
of appliance:（A）
Flexible cords
3 0.5 and 0.75
≤
3 and 6 0.75 and 1
> ≤
6 and 10 1 and 1.5
> ≤
10 and 16 1.5 and 2.5
> ≤
16 and 25 2.5 and 4
> ≤
25 and 32 4 and 6
> ≤
32 and 50 6 and 10
> ≤
50 and 63 10 and 16
> ≤
Power Current
Hz Min. Max. MCA TOCA
(V) (V) (A) (A)
198 264 12 18
50
50 198 264 14 18
50 198 264 19
16
50 198 264 17 19
50 198 264 25 30
50 198 264 26 30
50 198 264 27 30
50 342 456 10 14
50 342 456 11 14
50 342 456 12 14
6kW 8kW 10kW
18 19 19
4.0 4.0 4.0
16
2
Cable for fixed wiring
1 and 2.5
1 and 2.5
1 and 2.5
1.5 and 4
2.5 and 6
4 and 10
6 and 16
10 and 25
Compressor
MFA MSC RLA
(A) (A) (A)
-
25
11.50
-
25 13.50
-
25
14.50
-
25
15.50
-
35
23.50
-
35
24.50
-
35
25.50
-
16 9.15
-
16
10.15
-
16
11.15
NOTE
12kW 14kW 16kW 12kW 3-PH
30 30 30
6.0 6.0 6.0
OFM
KW FLA
(A)
0.10
0.50
0.10 0.50
0.17
1.50
0.17
1.50
0.17
1.50
0.17
1.50
0.17
1.50
0.17 1.50
0.17
1.50
0.17
1.50
14kW 3-PH 16kW 3-PH
14 14 14
2.5 2.5 2.5