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4-3. Wiring System Diagram
Power supply
L
220-230-240V ~ 50-60Hz
N
Ground
Remote
controller
WHT
1
1
BLK
2
2
Power supply
L
~ 50-60Hz
220-230-240V
N
Ground
Remote
controller
WHT
1
1
BLK
2
2
Group control:
Power supply
L
~ 50-60Hz
220-230-240V
N
Ground
L
Power supply
220-230-240V
~ 50-60Hz
N
Ground
Remote
controller
WHT
1
1
BLK
2
2
NOT E
(1) See section "4-2. Wire Length and Wire Diameter for Power
Supply System" for the explanation of "A," "B," "C," "D," "E"
and "F" 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 section "7-4. Auto
Address Setting".
Indoor unit
(No. 1)
L
N
B
U1
U2
D
R1
R2
Indoor unit
(No. 2)
L
N
B
U1
U2
D
R1
R2
Indoor unit
(No. 3)
L
N
B
E
U1
U2
R1
R2
Indoor unit
(No. n)
L
N
B
U1
U2
D
R1
R2
(
: Functional earthing)
Outdoor unit
INV unit
C
L1
U1
L2
U2
L3
N
1
2
C
F
Inter-outdoor-unit control wiring
Outdoor unit
INV unit
L1
L2
1
L3
2
C
N
C
32
A
L1
Power supply
L2
380-400-415V 3N ~ 50Hz
L3
380-400V 3N~ 60Hz
N
Ground
A
L1
Power supply
L2
380-400-415V 3N ~ 50Hz
L3
380-400V 3N~ 60Hz
N
Ground
4P terminal board
L1
L2
L3
Power supply
(14 HP, 16 HP)
4P terminal board
L1
L2
L3
Power supply
(8 HP, 10 HP and 12 HP)
4P terminal board
U1 U2
1
Inter-unit
Inter-outdoor unit
control wiring
control wiring
Type MF3
N
N
2
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