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4-3. Wiring System Diagrams
L
Power supply
N
220-230-240V ~ 50-60Hz
Ground
Remote
controller
WHT
1
1
BLK
2
2
L
Power supply
N
220-230-240V ~ 50-60Hz
Ground
Remote
controller
WHT
1
1
BLK
2
2
Group control :
Power supply
L
220-230-240V ~ 50-60Hz
N
Ground
Power supply
L
220-230-240V ~ 50-60Hz
N
Ground
Remote
controller
WHT
1
1
BLK
2
2
NOTE
(1) Refer to Section 4-2. "Recommended Wire Length
and Wire Diameter for Power Supply System" for the
explanation of "B", "C", "D" and "E" in the above diagram.
(2) The basic connection diagram of the indoor unit shows the
terminal boards, 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.
(4) Regarding R.C. address setting, refer to the installation
instructions supplied with the remote controller (optional).
Auto address setting can be executed by remote controller
automatically. Refer to the installation instructions supplied
with the remote controller (optional).
WARNING
This equipment must be properly earthed.
Indoor unit
(No. 1)
L
N
SG
B
U1
U2
D
R1
R2
C
Indoor unit
(No. 2)
L
N
SG
B
U1
U2
D
R1
R2
C
Indoor unit
(No. 3)
L
N
SG
B
E
U1
U2
R1
R2
C
Indoor unit
(No. n)
L
N
SG
B
U1
U2
D
R1
R2
(SG : Shows the ground for the shielded cable.)
ex.) Type ME2 (for Europe)
Outdoor unit
INV unit
C
L1
U1
L2
U2
L3
SG
N
1
2
Inter-outdoor-unit control wiring
Outdoor unit
INV unit
L1
SG
L2
1
L3
2
N
7P terminal board
L
N
Power
supply
15
L1
Power supply
L2
380-400-415V, 3 N~, 50Hz
L3
N
Ground
L1
Power supply
L2
380-400-415V, 3 N~, 50Hz
L3
N
Ground
U1
U2
R1
R2
Inter-unit
Remote
control
control
wiring
wiring
Type K2
§
¢
£
¦
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