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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:
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 14kW 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
16kW 3-PH
14
14
14
2.5
2.5
2.5
V.2
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