30
NOTE
(1) See the section “4-2. Recommended Wire Length
and Wire Diameter for Power Supply System” for the
explanation of “A,” “B,” “C” and “D” 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, See the section “7-5.
Auto Address Setting”. Address setting can be executed
by remote controller automatically.
4-3. Wiring System Diagram
*
*
*
*
*
U2
U1
L2
L1
R2
R1
2
U2
1
U1
2
1
2
1
2
1
B
C
A
L1
L2
L3
L1
L2
L1
L2
L1
L2
2
1
2
1
L1
L2
L3
D
B
A
U2
U1
L2
L1
R2
R1
U2
U1
L2
L1
R2
R1
A
A
L2
L1
L3
L2
L1
L3
*
U2
U1
L2
L1
R2
R1
2
1
B
L1
L2
2
1
*
*
2
U2
1
U1
L1
L2
L3
2
1
L1
L2
L3
D
L2
L1
L3
L2
L1
L3
ALWAYS COMPLY WITH NATIONAL AND LOCAL CODE
REQUIREMENTS.
Power supply
208 / 230V, 60Hz, 1-PH
Remote
Controller
Indoor
unit (No. n)
WHT
BLK
Ground
Power supply
208 / 230V, 60Hz, 1-PH
Power supply
208 / 230V, 60Hz, 1-PH
Power supply
208 / 230V, 60Hz, 1-PH
Power supply
208 / 230V, 60Hz, 3-PH
Power supply
208 / 230V, 60Hz, 3-PH
Power supply
460V, 60Hz, 3-PH
Power supply
460V, 60Hz, 3-PH
* Disconnect switch (Field Supply)
* NOTE:
Disconnect Switch may be needed by the National/Local code.
Remote
Controller
Remote
Controller
Indoor
unit (No. 1)
Indoor
unit (No. 2)
Indoor
unit (No. 3)
Outdoor unit
INV unit
U-72MF2U9 / U-96MF2U9 / U-120MF2U9 / U-144MF2U9
U-72MF2U94 / U-96MF2U94 / U-120MF2U94 / U-144MF2U94
Outdoor unit
INV unit
Outdoor unit
INV unit
Outdoor unit
INV unit
WHT
BLK
WHT
BLK
Ground
Ground
Ground
Group control:
Ground
Ground
Ground
Ground
Inter-outdoor unit control wiring
Inter-outdoor unit control wiring
L2
L3
L1
3P terminal board
U1
1
U2
2
2P terminal board (×2)
(U-72MF2U9 / U-96MF2U9 /
U-120MF2U9 / U-144MF2U9)
Outdoor Unit
Inter-unit
control wiring
Inter-outdoor unit
control wiring
U1 U2
1
2
4P terminal board
(U-72MF2U94 / U-96MF2U94 /
U-120MF2U94 / U-144MF2U94)
Inter-unit
control wiring
Inter-outdoor unit
control wiring
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