30
The outdoor and all indoor units are in parallel through 2 non-polar wires.
Three wiring methods between wired controller and indoor unit:
A. 1 to multi (group control): one wired controller controls 2-16 indoors, as shown in above figure, indoor 1-indoor
2: indoor 2 is wired control master unit, the others are wired control slave units. Wired controller and the master
indoor (directly connected to wired controller) is connected by 3 polar wires; the other indoors and the master
indoors are connected by 2 polar wires.
B. 1 to 1 (one wired controller controls one indoor): as shown in above figure, indoor 3- indoor 4, indoor and wired
controller are connected by 3 polar wires.
C. 2 to 1 (two wired controller controls one indoor): as shown in above figure, indoor 6. Either of wired controllers
can be set as master wired controller, and the other is slave wired controller. Master/slave wired controller, and
master/indoor are connected by 3 polar wires.
When indoor is controlled by remote controller, refer to the "wired control master unit/wired control slave unit/remote
control unit table". A, B, C on signal terminal block need not wires and not connect the wired controller.
9.2
Specs for power cable and communication wire
(1) Outdoor power source and power cable
Item
Power source
Power cable
section
(mm
2
)
Circuit
breaker
(A)
Rated current of residual
circuit breaker (A) Ground
fault interruptor (mA)
Response time (S)
Ground wire
Model
Section
(mm
2
)
Screw
Individual power
AU282FHERA
1PH,220-230V,50Hz
6
30
30A 30mA below 0.1S
6
M5
AU482FIERA (G) 1PH,220-230V,50/60Hz
10
50
50A 30mA below 0.1S
10
M5
AU48NFIERA (G)
3N~,380-400V,50/60Hz
4
20
20A 30mA below 0.1S
4
M5
AU60NFIERA (G)
4
20
20A 30mA below 0.1S
4
M5
a. Power cable must be fixed firmly.
b. Each outdoor must be earthed well.
c. When power cable exceeds the range, thicken it appropriately.
(2) Indoor power source, communication wire between indoor and outdoor, among indoors
Item
Power cable
section (mm
2
)
Wire
length (m)
Rated
current of
overcurrent
breaker (A)
Rated current of
residual current circuit
breaker (A)
Leakage current (mA)
Response time (s)
Communication wire section
Indoor
totalcurrent (A)
Outdoor/indoor
(mm
2
)
Indoor/indoor
(mm
2
)
<10
2
20
20
20A, 30mA, below 0.1s
2-core
×
(0.75-2.0mm
2
)
shielded wire
≤10 and <15
3.5
25
30
30A, 30mA, below 0.1s
≤15 and <22
5.5
30
40
40A, 30mA, below 0.1s
≤22 and <27
10
40
50
50A, 30mA, below 0.1s
a. Power cable and communication wire must be fixed firmly.
b. Each indoor must be earthed well.
c. When power cable exceeds the range, thicken it appropriately.
d. Shielded layer of communication wires must be connected together and be earthed at single point.
e. Communication wire total length cannot exceed 1000m.
