III - 4
Service Procedures
3
SM830052
2
1
3
1
2
3
1
2
2
1
2
1
3
4
5
6
2
1
3
WHT
RED
Remote
controller
D
BLK
2
1
3
2
1
3
1
2
3
1
2
2
1
3
1
2
3
1
2
2
1
3
1
2
3
1
2
2
1
3
WHT
RED
Remote
controller
Group control:
D
BLK
2
1
3
2
1
3
WHT
RED
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
(No. 1)
L1
Power supply
L2
L3
380-415V-3N 50Hz
N
Ground
Ground
L
N
L
N
L
N
L
N
0796_M_I
BLK
2
1
3
2
1
2
1
3
4
5
6
Outdoor unit
(No. m)
Power supply
220-240V 50Hz
B
B
B
Ground
Ground
Ground
A
L1
Power supply
L2
L3
N
Ground
380-415V-3N 50Hz
Power supply
220-240V 50Hz
Power supply
220-240V 50Hz
Power supply
220-240V 50Hz
R.C. Address : 1 (S002, BLK)
R.C. Address : 2 (S002, BLK)
Ground
C
Ground
C
Ground
C
Ground
2
1
C
Ground
Wiring system diagram
1. Troubleshooting
CAUTION
(1)
When linking outdoor units in a network (S-net link
system), remove the short plug (CN031, 2P Black,
location: right bottom on the outdoor control PCB) from
all outdoor units except any one of outdoor unit.
Otherwise the communication of S-net link system does
not perform.
In case of no link system (No connection wiring be-
tween outdoor units), do not remove the short plug.
(2)
Do not wire the inter-unit control wiring such as loop
wiring (Fig. below)
Outdoor unit
Outdoor unit
Outdoor unit
0192_M_I
Prohibited
Prohibited
Indoor unit
Indoor unit
Indoor unit
Indoor unit
Indoor unit