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ENGLISH
4-3. Wiring System Diagrams
NOTE
(1) Refer to Section 4-2. “Recommended Wire Length
and Wire Diameter for Power Supply System” for the
explanation of “A”, “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. (Fig. 4-2)
(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).
Fig. 4-1
L2
L1
U2
U1
L3
N
A
L1
L2
L3
N
U2
R2
U1
R1
R2
R1
L
N
U2
U1
2
1
D
C
B
L
N
L
N
2
1
B
E
C
L
N
A
L
N
2
1
N
L
Power supply
220 – 240V ~50/60Hz
Remote
controller
WHT
BLK
Power supply
220 – 240V ~50/60Hz
Power supply
220 – 240V ~50/60Hz
Ground
Ground
Ground
Ground
* 3-phase model connections
* Single-phase model connections
Ground
Ground
Power supply
380 – 415V, 3 N~, 50Hz
Outdoor unit (3-phase)
INV unit
Outdoor unit (single-phase)
INV unit
Ground
Indoor unit
(No. 1)
Indoor unit
(No. 2)
Fig. 4-2
L N U1 U2 R1 R2
6P terminal board
Power
supply
Unit
control
line
Remote
control
line
Y1 Type
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