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31-5000500 Rev. 0 17
ENGLISH
ELECTRICAL WIRING
Wire gauge size and breaker size for total indoor amp draw. Current NEC guidelines and local codes will trump this chart.
• The electrical power line and signal lines must be tightened.
• Every indoor unit must have a ground connection.
• The power wire should be size up if it exceeds the permissible length.
• Shielding of the wire of all the indoor and outdoor units should be connected and grounded at one point in the outdoor
unit. The far end of the shielding wire should be wrapped back and taped.
• Signal lines should not exceed 3280ft (1000m).
Wired Controller ABC Chart
• The shielding layer of the controller wire must be grounded at the equipment end, and taped back at the terminal end.
• The total length of the controller wire shall not be more than 820ft (250m).
Items Cross Section
AWG (mm²)
Length
in (mm)
Rated Current
of Overflow
Breaker (A)
Rated Current of
Residual Circuit
Breaker (A)
Ground Fault
Interrupter (mA)
Response Time (S)
Cross
Sectional Area
of Signal Line
< 7 14 (2.5) 65.6 (20) 10 10 A, 30 mA, 0.1S or below
16 AWG (1.25mm²)
7 and < 11
12 (4) 65.6 (20) 15 15 A, 30 mA, 0.1S or below
11 and < 16
10 (6) 82 (25) 20 20 A, 30 mA, 0.1S or below
16 and < 22
8 (8) 98.4 (30) 30 30 A, 30 mA, 0.1S or below
22 and < 27
6 (10) 131 (40) 30 30 A, 30 mA, 0.1S or below
Total Current
of Indoor
Units (A)
Length of Controller Wire ft ( m)
Wiring Dimensions AWG (mm²)
820 (250)
18 (0.75) x 3 core shielding line
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