Electrical Wiring
Indoor power supply wiring & signal wiring between indoor and outdoor & signal wiring between
indoors.
Items
Cross
Total
Section
Current of
(mm
Indoor Units(A)
<6
2.5
≥6 and <10
≥10 and <16
≥16 and <25
≥25 and <32
• The electrical power line and signal lines must be fastened tightly.
• Every indoor unit must have earthing.
• 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
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.
Rated
Length
Current of
(m)
Overflow
2
)
Breaker (A)
20
10
4
20
16
6
25
20
8
30
32
10
40
32
Wiring Dimensions
0.75mm
Rated current of residual
Circuit Breaker (A)
Ground Fault
Interruptor (mA)
Response time (S)
10 A,30 mA,0.1S or below
16 A,30 mA,0.1S or below
20 A,30 mA,0.1S or below
32 A,30 mA,0.1S or below
32 A,30 mA, 0.1S or below
2
x 3 core shielding line
19
Cross Sectional
Area of Signal Line
Indoor-
Outdoor-
indoor
indoor
2
(mm
)
2
(mm
)
2 coresx0.75-2.0
2
mm
shielded lin