4-3. Wiring System Diagrams
L
Power supply
N
220 – 240V ~50/60Hz
Ground
Remote
controller
D
WHT
1
1
BLK
2
2
Power supply
L
220 – 240V ~50/60Hz
N
Ground
N OTE
(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).
Indoor unit
(No. 1)
L
N
C
B
U1
U2
Ground
R1
R2
Ground
C
Indoor unit
(No. 2)
Ground
L
N
B
U1
U2
E
R1
R2
* 3-phase model connections
Outdoor unit (3-phase)
INV unit
A
L1
L1
L2
U1
L2
L3
U2
L3
N
N
* Single-phase model connections
Outdoor unit (single-phase)
INV unit
A
L
N
1
2
6P terminal board
L
N
U1
Power
Unit
supply
control
line
Y1 Type
9
Power supply
380 – 415V, 3 N~, 50Hz
Ground
L
Power supply
220 – 240V ~50/60Hz
N
Ground
Fig. 4-1
U2
R1
R2
Remote
control
line
Fig. 4-2