16
8.3 Safety device requirement
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
Rated current of
appliance: (
a
)
Nominal cross-sectional area (mm
2
)
Flexible cords
Cable for fixed wiring
<3
0.5 and 0.75
1 and 2.5
>3 and <6
0.75 and 1
1
and 2.5
>6 and <10
1 and 1.5
1
and 2.5
>10 and <16
1.5 and 2.5
1.5 and 4
>16 and
<25
2.5 and 4
2.5 and 6
>25 and <32
4
and
6
4 and 10
>32 and <50
6 and 10
6 and 16
>50 and <63
10 and 16
10 and 25
Table 8-2
System
Outdoor Unit
Power Current
Compressor
OFM
Voltage
(V)
Hz
Min.
(V)
Max.
(V)
MCA
(A)
TOCA
(A)
MFA
(A)
MSC (A)
RLA (A)
KW
FLA (A)
4kW
220-240
50
198
254
14
18
30
-
11.3
0.094
0.9
6kW
220-240
50
198
254
14
18
30
-
11.3
0.094
0.9
8kW
220-240
50
198
254
19
19
30
-
16.7
0.195
1.7
10kW
220-240
50
198
254
19
19
30
-
16.7
0.195
1.7
NOTE
MCA:
Max. Circuit Amps. (A)
TOCA:
Total Over-current Amps. (A)
MFA:
Max. Fuse Amps. (A)
MSC:
Max. Fuse Amps. (A)
FLA:
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(kW)
4/6
8/10
Maximum overcurrent
protector(MOP)
18 A
19 A
Wiring size
4 mm
2
4 mm
2
• Stated values are maximum values (see electrical data for exact values).
