4-3. Wiring System Diagrams
N OT E
(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.
Type K2
U2
U1
R2
R1
L
N
R2
R1
R2
R1
R2
R1
2
1
2
1
U2
U1
L
N
U2
U1
L
N
U2
U1
L
N
2
1
2
1
2
1
D
E
C
B
L
N
L
N
L
N
L
N
2
1
B
B
B
C
D
D
C
2
1
L1
L2
L3
N
2
1
L1
L2
L3
N
C
L1
L2
L3
N
L1
L2
L3
N
U2
U1
SG
SG
SG
SG
SG
SG
Power supply
380-400-415V, 3 N~, 50Hz
Ground
Ground
Indoor unit
(No. 1)
Indoor unit
(No. 2)
Indoor unit
(No. 3)
Indoor unit
(No. n)
Power supply
380-400-415V, 3 N~, 50Hz
ex.) Type ME2 (for Europe)
Outdoor unit
INV unit
Outdoor unit
INV unit
Inter-outdoor-unit control wiring
Power supply
220-230-240V ~ 50-60Hz
Remote
controller
WHT
BLK
Ground
Ground
Group control
:
Ground
Ground
Power supply
220-230-240V ~ 50-60Hz
Power supply
220-230-240V ~ 50-60Hz
Remote
controller
Remote
controller
WHT
BLK
WHT
BLK
Power supply
220-230-240V ~ 50-60Hz
(SG : Shows the ground for the shielded cable.)
7P terminal board
Power
supply
Inter-unit
control
wiring
Remote
control
wiring
L N U1 U2 R1 R2
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