5-3. Wiring System Diagrams
(for 3-phase outdoor unit: X, K, T, U and D Types)
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
Remote
controller
WHT
1
1
2
2
BLK
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
Remote
controller
1
1
WHT
2
2
BLK
Group control:
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
Remote
controller
1
1
WHT
2
2
BLK
N OT E
(1) Refer to Section 5-2. "Recommended Wire Length
and Wire Diameter for Power Supply System" for the
explanation of "A", "B", "C", "D" and "E" in the above
diagrams.
(2) The basic connection diagram of the indoor unit shows
the 7P terminal board, so the terminal boards in your
equipment may differ from the diagram.
(3) Refrigerant Circuit (R.C.) address should be set before
turning the power on.
Indoor
unit (No. 1)
L
N
B
U1
U2
D
1
2
Ground
C
Indoor
unit (No. 2)
L
N
B
U1
U2
D
1
2
Ground
C
Indoor
unit (No. 3)
L
N
B
U1
U2
E
1
2
Ground
C
Indoor
unit (No. n)
L
N
B
U1
U2
D
1
2
Ground
Outdoor unit
INV unit
C
1
U1
2
U2
3
Ground
4
5
8P terminal board
1
2
1(L)2(N)
Power
supply
control wiring
U, D Types
43
A
L1
Power supply
L2
380 – 415 V, 3N, ~ 50/60 Hz
L3
N
Ground
7P terminal board
1(L)
2(N)
U1
U2
Power
Inter-unit
supply
control wiring
X, T Types
5P terminal board
U1
U2
R1
R2
R1 R2
Remote
Power
controller
supply
U1 U2
Inter-unit
R1
R2
Remote
controller
1
2
3
4
5
1(L)2(N)
U1 U2
Inter-unit
control wiring
K Type