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4-2. Wire Length and Wire Diameter for Power Supply System
Outdoor unit
Min. wire size
U-8MF3R7
4 mm²
U-10MF3R7
6 mm²
U-12MF3R7
6 mm²
U-14MF3R7
10 mm²
U-16MF3R7
10 mm²
Indoor unit
Type
D1, L1, U2, Y2, K2,
T2, F2, M1, P1, R1,
Refer to the Installation Instructions of the indoor unit.
E1, E2, Z1
Control wiring
(C) Inter-unit (between outdoor and indoor units) control wiring
0.75 mm²
Use shielded wiring*
Max. 1,000 m
(E) Control wiring for group control
0.75 mm²
Max. 200 m (Total)
NOT E
*1 Maximum applicable wire for terminal board of outdoor unit : 22 mm²
*2 Maximum length shows a 2% voltage drop.
*3 With ring-type wire terminal
(A) Power supply
Max. length
2
1
56 m
*
*
65 m
2
*
1
*
59 m
2
*
1
*
1
65 m
2
*
*
61 m
2
*
1
*
(B) Power supply
3
or
(F) Inter-outdoor unit control wiring
Use shielded wiring
Time delay
fuse or circuit
capacity
25 A
or
25 A
30 A
40 A
40 A
Time delay fuse or
circuit capacity
2.0 mm²
Use shielded wiring*
3
Max. 2,000 m
0.75 mm²
Max. 300 m
31
(A) Power supply
Min. wire size
Max. length
6 mm²
1
84 m
*
—
—
—
—
—
—
—
—
(D) Remote control wiring
0.75 mm²
Max. 500 m
Time delay
fuse or circuit
capacity
2
25 A
*
—
—
—
—
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