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Electrical Wiring
The wiring for the power line of indoor unit, the wiring between indoor and outdoor units as well as the wiring between
indoor units:
Items
Total
Current of
Indoor Units(A)
<7
≥7 and <11
≥11and <16
≥16 and <22
≥22 and <27
• The electrical power line and signal lines must be fastened tightly.
• Every indoor unit must have the ground connection.
• The power line should be enlarged if it exceeds the permissible length.
• Shielded lays of all the indoor and outdoor units should be connected together, with the shielded lay at the side of signal
lines of outdoor units grounded at one point.
• It is not permissible if the whole length of signal line exceeds 1000m.
Signal Wiring of Wired controller
Length of Signal Line (m)
≤250
Dipswitch Setting
(A) Definition and description of SW01
SW01_1
SW01_2
Wired control address
SW01_3
SW01_4
SW01_5
SW01_6
Indoor unit capacity
SW01_7
SW01_8
Rated
Cross
Length
Current of
Section
(m)
Overflow
2
(mm
)
Breaker(A)
2.5
20
4
20
6
25
8
30
10
40
Wiring Dimensions
2
0.75mm
x core shielding line
[1]
[2]
0
0
0
0
0
0
0
0
∙∙∙
∙∙∙
1
1
[5]
[6]
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
Rated current of residual
Circuit Breaker(A)
Ground Fault
Interruptor(mA)
Response time(S)
10
10 A,30 mA,0.1S or below
16
16 A,30 mA,0.1S or below
20
20 A,30 mA,0.1S or below
32
32 A,30 mA,0.1S or below
32
32 A,30 mA,0.1S or below
• The shielding lay of the signal line must be grounded at one
end.
• The total length of the signal line shall not be more than 250m.
[3]
[4]
0
0
0
1
1
0
1
1
∙∙∙
∙∙∙
1
1
[7]
[8]
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
16
Cross Sectional
Area of Signal Line
Outdoor -indoor
2
(mm
)
2 cores×0.75-2.0
2
mm
shielded line
Wired control address
Master unit in group control
Slave unit 1 in group control
Slave unit 2 in group control
Slave unit 3 in group control
∙∙∙
Slave unit 15 in group control
Indoor unit capacity
0.6HP
0.8HP
1.0HP
1.2HP
1.5HP
1.7HP
2.0HP
2.5HP
3.0HP
3.2HP
4.0HP
5.0HP
6.0HP
8.0HP
10.0HP
15.0HP
Indoor -indoor
2
(mm
)
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