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5-3. Wiring System Diagram
U2
U1
L2
L1
R2
R1
2
1
U2
U1
4
3
3
4
5
2
1
WHT
Remote
controller
BLK
2
1
2
1
WHT
Remote
controller
Group control:
BLK
2
1
2
1
WHT
Remote
controller
D
A
E
Indoor
unit (No. n)
Indoor
unit (No. 1)
Indoor
unit (No. 2)
Indoor
unit (No. 3)
C
B
Outdoor unit
INV unit
L1
L2
L3
Ground
Ground
L1
L2
L1
L2
L1
L2
L1
L2
BLK
2
1
2
1
4
3
3
4
5
Outdoor unit
INV unit
Power supply
208 / 230V, 1ø, ~60Hz
Power supply
208 / 230V, 1ø, ~60Hz
Power supply
208 / 230V, 1ø, ~60Hz
Power supply
208 / 230V, 1ø, ~60Hz
Power supply
208 / 230V, 3ø, ~60Hz
Power supply
208 / 230V, 3ø, ~60Hz
B
B
B
Ground
Ground
Ground
Ground
A
L1
L2
L3
Ground
Ground
C
Ground
Ground
Ground
Ground
Ground
F
Ground
D
D
C
Ground
Ground
C
Ground
Inter-outdoor-unit control wiring
U2
U1
L2
L1
R2
R1
U2
U1
L2
L1
R2
R1
U2
U1
L2
L1
R2
R1
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
diagram.
(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.
(4) Regarding the R.C. address setting, refer to page 74.
Address setting can be executed by remote controller
automatically. Refer to page 74 – 78.
K Type
1(L1)2(L2)
U1 U2
123 45
Power
supply
Inter-unit
control wiring
5P terminal board
1(L1) 2(L2)
Power
supply
U1
Inter-unit
control wiring
U2
Remote
controller
R1
R2
X, A, U, D, T Type
7P terminal board
07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 60