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5-3. Wiring System Diagrams
(for 3-phase outdoor unit: 4WK, HW, C, D Types)
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
Remote
controller
WHT
1
1
BLK
2
2
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
Remote
controller
WHT
1
1
BLK
2
2
Group control:
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
L
Power supply
N
220 – 240 V, ~ 50 Hz
Ground
Remote
controller
WHT
1
1
BLK
2
2
NOTE
(1) Refer to Section 5-2. "Recommended Wire Length
and Wire Diameter for Power Supply System" for the
explanation of "A", "B", "C", "D" and "E" in the above
diagrams.
(2) The basic connection diagram of the indoor unit shows
the 7P 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.
Big_PAC_eng.indb 34
Big_PAC_eng.indb 34
Indoor
unit (No. 1)
L
N
C
B
U1
U2
D
Ground
1
2
Ground
C
Indoor
unit (No. 2)
L
N
B
U1
U2
D
1
2
Ground
C
Indoor
unit (No. 3)
L
N
B
U1
U2
E
1
2
Ground
C
Indoor
unit (No. n)
L
N
B
U1
U2
D
1
2
Ground
Outdoor unit
INV unit
A
L1
1
L2
U1
2
U2
L3
3
N
4
5
Ground
7P terminal board
1(L) 2(N)
U1
U2 R1 R2
Power
Remote
supply
controller
Inter-unit
control wiring
4WK, C Types
8P terminal board
1
2
U1
U2
R1
R2
1(L) 2(N)
U1 U2 R1 R2
Power
Remote
supply
controller
Inter-unit
control wiring
D Type
34
Power supply
380 – 415 V, 3N, ~ 50/60 Hz
5P terminal board
L
N
U1
U2
Power
Unit
supply
control
Line
HW18 Type
5P terminal board
1(L1) 2(L2)
U1 U2
Power
Unit
supply
control
Line
HW25 Type
2009/08/26 16:33:16
2009/08/26 16:33:16
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