Technical data
4- 19
4
Test Run and Others
3. Electrical Wiring
3-3. Wiring System Diagram
U2
U1
3
1
2
1
2
N
L
1
2
2
1
WHT
Remote
controller
BLK
2
1
U2
U1
3
1
2
1
2
U2
U1
3
1
2
1
2
U2
U1
3
1
2
1
2
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
L
Power supply
N
220–240V-1N 50Hz
Ground
Ground
L
N
L
N
L
N
L
N
BLK
2
1
Power supply
220-240V 50Hz
B
B
B
Ground
Ground
Ground
Ground
Power supply
220-240V 50Hz
Power supply
220-240V 50Hz
Power supply
220-240V 50Hz
Ground
C
Ground
D
D
C
Ground
C
Ground
NOTE
(1) Refer to Section 3-2. “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 dia-
gram.
(3) Refrigerant Circuit (R.C.) address should be set
before turning the power on.
(4) Regarding the R.C. address setting, refer to page
5-8. Auto. address setting can be executed by
remote controller automatically. Refer to page
5-9 – 5-13.
1(L)2(N)
Power
supply
U1
Inter-unit
control wiring
U2
Remote
controller
8P terminal board
R1 R2
1 2 U1 U2 R1 R2
ASS,ADS,ACS,FC,SD
AWS Type
1(L)2(N)
45
12345
Power
supply
Inter-unit
control wiring
5P terminal board
1(L) 2(N)
Power
supply
U1
Inter-unit
control wiring
U2
Remote
controller
R1
R2
*** Type
7P terminal board