28
NOTE
(1) See Section 4-2 for the explanation of “B”, “C”, “D” and “E” under Section 4-3.
(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 address should be set before turning the power on.
(4) Regarding Refrigerant Circuit address setting, refer to the installation instructions supplied
with the remote controller (Optional). Auto address setting can be executed by remote
controller automatically.
L
N
D
E
B
L
N
L
N
L
N
L
N
B
B
B
D
D
L1
L2
L3
N
1
2
1
2
1
2
U2
U1
L1
L2
L3
N
R2
R1
L
N
U2
U1
R2
R1
L
N
U2
U1
R2
R1
L
N
U2
U1
R2
R1
U2
U1
2
1
C
C
C
C
L1
L2
L3
N
L1
L2
L3
N
2
1
4-3. Wiring System Diagrams
( : Functional earthing)
Power supply
220-230-240V~ 50-60Hz
Power supply
220-230-240V~ 50-60Hz
Power supply
220-230-240V~ 50-60Hz
Power supply
220-230-240V~ 50-60Hz
Indoor unit
(No. 1)
ex.) Type MF3 (for Europe)
Outdoor unit
INV unit
Inter-outdoor-unit control wiring
Outdoor unit
INV unit
Indoor unit
(No. 2)
Indoor unit
(No. 3)
Indoor unit
(No. n)
Ground
Ground
Ground
Ground
Ground
Ground
Remote controller
Remote controller
Remote controller
Power supply
380-400-415V 3N~ 50Hz
Power supply
380-400-415V 3N~ 50Hz
L
U1 U2 R1 R2
N
4P terminal board 3P terminal board
Inter-unit
control
wiring
Remote
control
wiring
Power supply
cable
Type F3
01_350221_Eng.indb 28 2023/3/17 10:01:11
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