16
4-3. Wiring System Diagrams
(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 unit
(optional). Auto address setting can be executed by
remote controller automatically. Refer to the installation
instructions supplied with the remote controller unit
(optional).
2P terminal board
Power
supply
Unit
control
line
Remote
control
line
4P terminal board
Fig. 4-2
Fig. 4-1
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
4
3
A
L1
L2
L3
N
4
3
A
L1
L2
L3
N
F
C
L1
L2
L3
N
L1
L2
L3
N
1
2
Power supply
220/230/240V ~ 50/60Hz
Remote
controller
Remote
controller
Remote
controller
WHT
BLK
WHT
BLK
WHT
BLK
Power supply
220/230/240V ~ 50/60Hz
Power supply
220/230/240V ~ 50/60Hz
Power supply
220/230/240V ~ 50/60Hz
Ground
Ground
Ground
Ground
Ground
Ground
Inter-outdoor-unit control wiring
Ground
Ground
Ground
Outdoor unit
INV unit
Power supply
380 – 415V, 3 N~, 50 Hz
Power supply
380 – 415V, 3 N~, 50 Hz
Outdoor unit
INV unit
Ground
Ground
Ground
Ground
Ground
Ground
Indoor unit
(No. 1)
Indoor unit
(No. 2)
Indoor unit
(No. n)
Indoor unit
(No. 3)
Group control:
Ground
Ground
Ground
L
N
U1
U2
R1
R2
L
N
U1
U2
R1
R2
Z1 Type
Pana_indoor_F616337_Eng2.indd 16
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