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4-2. Recommended Wire Length and Wire Diameter for Power Supply System
Outdoor unit
4 HP
5 HP
6 HP
Indoor unit
Type
D1, L1, U2, Y2, K1,
K2, T2, F2, M1, P1,
Refer to the Installation Instructions of the indoor unit.
R1, E1, Z1
Control wiring
(C) Inter-unit (between outdoor and indoor units) control wiring
0.75 mm² (AWG #18)
Use shielded wiring*
Max. 1,000 m
* With ring-type wire terminal
NOTE
(E) Control wiring for group control
0.75 mm² (AWG #18)
Max. 200 m (Total)
(A) Power supply
Wire size
Max. length
4 mm²
24 m
4 mm²
17 m
4 mm²
15 m
(B) Power supply
or
Time delay fuse or
circuit capacity
or
25 A
30 A
35 A
Time delay fuse or
circuit capacity
2.0 mm² (AWG #14)
Use shielded wiring*
Max. 2,000 m
25
(A) Power supply
Wire size
Max. length
6 mm²
36 m
6 mm²
25 m
6 mm²
22 m
(D) Remote control wiring
0.75 mm² (AWG #18)
Max. 500 m
Time delay fuse or
circuit capacity
25 A
30 A
35 A
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