Wire Sizes - Hitachi RCI Serie Manual De Instalación Y Funcionamiento

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15.5. WIRE SIZES

Field Minimum Wire Sizes for Power Source
Model
Indoor units 2.0~6.0HP
Indoor units 8.0/10.0HP
RAS-8HRNM
RAS-10HRNM
RAS-12HRNM
NOTES:
1. Follow local codes and regulations when selecting field wires.
2. The above wire sizes marked with
Standard, EN60 335-1. Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord
(code designation H05RN-F).
3. The above wire sizes marked with
(Flame Retardant Polyflex Wire) manufactured by HITACHI Cable Ltd. Japan.
4. In the case that the power cables are connected in series, add each unit maximum current and select wires below.
5. The earth cable size complied with local code: IEC 245, No. 571.
In case that the power cables are connected in series, add each unit maximum current and select according to the next table.
Selection according to
EN60 335-1
Wire Size
Current i (A)
(mm²)
I
6
0.75
1
6 < i
10
1.5
10 < i
16
16 < i
25
2.5
4
25 < i
32
32 < i
40
6
10
40 < i
63
63 < i
In the case that current exceeds 63 A do not connect cables in series
CAUTION:
Use shielded wires for transmission wires between the indoor and the outdoor units, and connect the shielded part to the
earth screw in the electrical box of the indoor unit as shown below.
Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord (code designation H05RN-F)
Select the main switches in according to the next table:
Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord
(code designation H05RN-F)
Model
Indoor units 2.0~6.0HP
Indoor units 8.0/10.0HP
RAS-8HRNM
RAS-10HRNM
RAS-12HRNM
ELB: Earthleakage Breaker; CB: Circuit Breaker
Power Source
Max. Current
5 A
230V/1 /50Hz
6 A
13,2 A
17,1 A
400V/3 /50Hz
21,2 A
are selected at the maximum current of the unit according to the European
are selected at the maximum current of the unit according to the wire, MLFC
Selection according to
LFC (at cable Temp. Of 60 ºC)
Current i (A)
Wire Size (mm²)
I
15
0.5
0.75
15
i
18
1.25
18
i
24
24
i
34
2
3.5
34
i
47
47
i
62
5.5
8
62
i
78
78
i
112
14
22
112
i
147
Power Source
Max. Current
230V/1 /50Hz
400V/3 /50Hz
Power Source Cable Size
EN60 335-1
MLFC
0.75 mm²
0.5 mm²
1.0 mm²
0.75 mm²
2.5 mm²
1.25 mm²
4.0 mm²
2.0 mm²
4.0. mm²
2.0 mm²
ELB
CB
no. poles/A/mA
5 A
6 A
2/40/30
6 A
10 A
13,2 A
20 A
4/20/30
17,1 A
30 A
4/30/30
21,2 A
30 A
ELECTRICAL WIRING
33
Transmitting Cable Size
EN60 335-1
MLFC
0.5 mm²
0.75 mm²
0.75 mm²

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