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Outdoor power
supply
RCCB
Grounding line
Grounding line
Indoor power
supply
RCCB
Communication wire between
indoor and outdoor units
Figure 7.1
Figure 7.2 shows the power supply terminal of the indoor unit.
L
POWER IN
Figure 7.2
When connecting to the power supply terminal, use the circular wiring
terminal with the insulation casing (see Figure 7.3).
Use power cord that conforms to the specifications and connect
the power cord firmly. To prevent the cord from being pulled out by
external force, make sure it is fixed securely.
If circular wiring terminal with the insulation casing can not be used,
please make sure that:
•
Do not connect two power cords with different diameters to the
same power supply terminal (may cause overheating of wires due
to loose wiring) (See Figure 7.4).
+
F
g i
u
e r
7
3 .
7.2 Electrical Wiring Specifications
220-240V~50Hz
220-240V~50/60Hz
Power supply
L
N
Breakers with
current leakage
All-pole disconnection
device with leakage
protector
Indoor unit
Indoor unit
Figure 7.5
Refer to Tables 7.1 and 7.2 for the specifications of the power cord
and communication wire. A wiring capacity that is too small will
cause the electrical wiring to become too hot, and lead to accidents
when the unit burns and becomes damaged.
Wire slot
Indoor unit
N
Circular wiring
terminal
Proper power wiring connections
Insulation tube
Power cord
F
g i
u
e r
7
4 .
Indoor unit
Pull box
Pull box
Pull box
Indoor unit
Table 7.1
Model
Phase
Power
supply
Volt and frequency
Communication wire between
indoor and outdoor units
Communication wire between
indoor unit and wired controller
Field fuses
* Please refer to the corresponding wired controller manual for the wired
controller wiring.
Table 7.2 Indoor units electrical characteristics
Capacity
2.2kW
2.8kW
3.6kW
4.5kW
5.6kW
7.1kW
8.0kW
9.0kW
11.2kW
14.0kW
Abbreviations:
MCA: Minimum Circuit Amps
MFA: Maximum Fuse Amps
1. Select the wire diameters( minimum value) individually for each
: Copper wire
unit based on the table 6.3.
2. Maximum allowable voltage range variation between phases is
2%.
3. Select circuit breaker that having a contact separation in all poles
not less than 3 mm providing full disconnection，where MFA is
used to select the current circuit breakers and residual current
operation breakers:
Table 7.3
Rated current
of appliance（A）
≤3
≤6
>3
and
≤10
>6
and
≤16
>10
and
≤25
>16
and
≤32
>25
and
≤50
>32
and
≤63
>50
and
Warning
Refer to local laws and regulations when deciding on the dimensions for the
power cords and wiring. Get a professional to select and install the wiring.
7.3 Communication Wiring
Use only shielded wires for the communication wiring. Any other
type of wires may produce a signal interference that will cause the
units to malfunction.
Do not carry out electrical works like welding with the power on.
Do not bind the refrigerant piping, power cords and communication
wiring together. When the power cord and communication wiring
are parallel, the distance between the two lines must be 300 mm or
more in order to prevent signal source interference.
Communication wiring must not form a closed loop.
10
220-240V~50Hz
220-240V~50/60Hz
Shielded 3×AWG16-AWG18
Shielded
*
Power supply
Hz
Volts
MCA
MFA
0.74
0.74
0.77
1
1
50
220-240
50/60
1.1
1.3
1.3
1.5
2.6
IFM: Indoor Fan Motor
kW: Rated motor output
Nominal cross-sectional area (mm
Flexible cords
0.5
and
0.75
0.75
and
1
1
and
1.5
1.5
and
2.5
2.5
and
4
4
and
6
6
and
10
10
and
16
2.2-14.0kW
1-phase
AWG16-AWG20
15A
IFM
KW
FLA
15
0.03
0.59
15
0.03
0.59
15
0.03
0.62
15
0.03
0.8
15
0.03
0.8
15
0.06
0.88
15
0.15
1.04
15
0.15
1.04
15
0.15
1.2
15
0.24
2.08
FLA: Full Load Amps
2
)
Cable for fixed wiring
2.5
1
to
2.5
1
to
2.5
1
to
4
1.5
to
6
2.5
to
10
4
to
16
6
to
25
10
to
V.2
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