Table of Contents
4-3. Wiring System Diagram
Power supply
220-230-240V ~ 50-60 Hz
Remote
controller
WHT
1
BLK
2
Power supply
220-230-240V ~ 50-60 Hz
Remote
controller
WHT
1
BLK
2
Group control:
Power supply
220-230-240V ~ 50-60 Hz
Power supply
220-230-240V ~ 50-60 Hz
Remote
controller
WHT
1
BLK
2
N O TE
(1) See the 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
6P 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.
(4) Regarding the R.C. address setting, it can be executed by
remote controller automatically. See the section "7-4. Auto
Address Setting".
Indoor unit
(No. 1)
L
N
Ground
B
D
1
2
Indoor unit
(No. 2)
L
N
B
Ground
D
1
2
Indoor unit
(No. 3)
L
N
B
Ground
E
Indoor unit
(No. n)
L
N
B
Ground
D
1
2
L
N
C
SG
U1
U2
R1
R2
C
(SG : Shows the ground for the shielded cable.)
L
N
SG
U1
U2
R1
R2
C
L
N
SG
U1
U2
R1
R2
C
L
N
SG
U1
U2
R1
R2
26
Outdoor unit (single-phase)
INV unit
A
L
U1
U2
N
SG
2P terminal board
L
Power supply
2P terminal board
Inter-unit control wiring
Outdoor unit
L
Power supply
N
230-240V ~ 50Hz
Ground
N
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