31
4-2. Wire Length and Wire Diameter for Power Supply System
Outdoor unit
(A) Power supply
Time delay
fuse or circuit
capacity
or
(A) Power supply
Time delay
fuse or circuit
capacity
Min. wire size
Max. length
Min. wire size
Max. length
U-8MF3R7
4 mm²
*
1
56 m
*
2
25 A
6 mm²
*
1
84 m
*
2
25 A
U-10MF3R7
6 mm²
*
1
65 m
*
2
25 A
—
—
—
U-12MF3R7
6 mm²
*
1
59 m
*
2
30 A
—
—
—
U-14MF3R7
10 mm²
*
1
65 m
*
2
40 A
—
—
—
U-16MF3R7
10 mm²
*
1
61 m
*
2
40 A
—
—
—
Indoor unit
Type
(B) Power supply
Time delay fuse or
circuit capacity
D1, L1, U2, Y2, K2,
T2, F2, M1, P1, R1,
E1, E2, Z1
Refer to the Installation Instructions of the indoor unit.
Control wiring
(C) Inter-unit (between outdoor and indoor units) control wiring
0.75 mm
²
Use shielded wiring*
3
or
2.0 mm
²
Use shielded wiring*
3
Max. 1,000 m
Max. 2,000 m
(D) Remote control wiring
0.75 mm
²
Max. 500 m
(E) Control wiring for group control
0.75 mm
²
Max. 200 m (Total)
(F) Inter-outdoor unit control wiring
0.75 mm
²
Use shielded wiring
Max. 300 m
NOTE
*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
00_341136_2WAY_Eng.indb 31
2022/9/19 9:27:26
