Total indoor
unit capacity
Power Source
Earth wire
size (mm
2
)
*12
Transition
wire size for
control circuit
(mm
2
)
*13
Remote
control
switch cable
(mm
2
)
ELB
Main Switch
CB (fuse)
Minimum
wire size
(mm
2
)
Wiring
length (m)*1)
*11
(n/A/mA)
*9
Switch
capacity (A)
*10
capacity (A)
*9
< 7A
2/40/30
30
15
2.5
30
2.5
2 Core cable
(Shielded twist
pair cable)
0.75 ~ 1.25
2 core twist
pair cable
0.75
<10A
2/40/30
30
20
4.0
34
4.0
< 15A
2/40/30
30
30
6.0
34
6.0
ELB: Earth Leakage Breaker; CB: Circuit Breaker
*1): The above wiring line length shows the case that the indoor units are connected in series. (The voltage drop is within 2%.) When the power
source wiring is longer than the above value, select the minimum wiring size which the voltage drop is within 2%.
?
N O T E
• Check the recommended size of the ELB-CB shown in table. Select
high-sensitive high speed ELB when the rated sensitive current is
less than 30mA. (The motion time should be within 0.1 second.)
• Use 2 core cable or 2 core twist pair cable (Shielded twist pair cable
for the total wiring length more than 100m) for the control cable
between the outdoor unit and the indoor unit. The total cable length
should be less than 1000m.
• Use 2 core twist pair cable for the remote control switch cable and the
control cable between indoor units. The total cable length should be
less than 500m. If the total length of the cable is less than 30m, other
cables can be used (the cable size is 0.3mm
2
).
• Select the wiring size, ELB (Earth Leakage Breaker) and isolating
switch (CB) according to each regulation of region and Installation
and Operation Manual, and the dedicated electrical circuit must be
used.
• On the outside indoor unit, the power source cable, control cable and
remote control cable shall be installed separately as possible.
15.3 WIRING CONNECTION
1
The wiring connection for the indoor unit is shown below.
PCB
Electrical Box
Terminal block (white)
Terminal block (black)
Power source cable
Wire clamp
Wire clamp
Earth screw
Control cable /
Remote control cable
?
N O T E
Fix the wires with the cord clamps. Be careful that the wires does not
contact the edges of the cover for the electrical components.
2
When installing the optional air panel, connect the connector
for the auto swing motor and the connector for the indoor
unit. Refer to the technical documentation of the optional air
panel for details.
Electrical Box
Hinge
Air panel
Wiring connector for louver
(Air panel side)
(Indoor unit)
(Indoor unit PCB)
Connector (CN17)
?
N O T E
Fix the wires by wire clamp. Be careful that the wires does not contact
the edges of the cover for the electrical components the edges of the
suspension bracket and Drain Pipe.
ENGLISH
ELECTRICAL WIRING
PMML0549 rev.1 - 02/2021 - A10761230A
31
Summary of Contents for RCD-2.0FSR
Page 2: ......