12
4-3. Wiring System Diagram 
N OT E
(1) Referto“RecommendedWireLengthandWireDiameter
for Power Supply System” for the explanation of “B,” “C,” 
“D,”“E,”and“F,”intheabovediagram.For“A,”please
refer to outdoor unit installation instruction.
(2)  The basic connection diagram of the indoor unit shows the 
terminal boards, 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 R.C. address setting, refer to the installation 
instructions supplied with the outdoor unit. Auto address 
setting can be executed by remote controller automatically.
WARNING
 This equipment must be properly earthed.
U2
U1
U1
U2
R2
R1
L
N
R2
R1
R2
R1
R2
R1
2
1
2
1
U2
U1
L
N
U2
U1
L
N
U2
U1
L
N
2
1
2
1
2
1
D
E
C
B
L
N
L
N
L
N
L
N
2
1
B
B
B
C
D
D
C
2
1
A
L1
L2
L3
N
2
1
A
L1
L2
L3
N
F
C
L1
L2
L3
N
L1
L2
L3
N
Power supply
220/230/240V~50/60Hz
Remote 
controller
Remote 
controller
Remote 
controller
WHT 
BLK
WHT 
BLK
WHT 
BLK
Power supply
220/230/240V~50/60Hz
Power supply
220/230/240V~50/60Hz
Power supply
220/230/240V~50/60Hz
Ground
Ground
Ground
Ground
Ground
Ground
Inter-outdoor-unit control wiring
Ground
Ground
Ground
Outdoor unit 
INVunit
Power supply
380/400/415V,3N~,50Hz
Power supply
380/400/415V,3N~,50Hz
Outdoor unit 
INVunit
Ground
Ground
Ground
Ground
Ground
Ground
Indoor unit 
(No. 1)
Indoor unit 
(No. 2)
Indoor unit 
(No. n)
Indoor unit 
(No. 3)
Group control:
Terminal Board
Power 
supply 
cable
Inter-unit 
control 
wiring
Remote 
control 
wiring
Fig. 4-1
Fig. 4-2
Pana_F616380_All_L.indb   12 2013-12-11   17:38:09