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
Minimum
wire size
(mm
2
)
Wiring
length (m)
*1)
*11
n / A / mA
Switch
capacity (A)
*10
Fuse
capacity (A)
or CB *10
< 7A
2 / 40 / 30
30
15
2.5
30
3.5
2 Core cable
(Shielded twist
pair cable)
0.75 ~ 1.25
2 core twist pair
cable
0.75
<10A
30
20
4.0
34
< 15A
30
30
6.0
34
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 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 according to each regulation of region and “Installation &
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.
?
N O T E
•
The dip switches setting in the outdoor unit should be performed
according to “Installation & Operation Manual” of the outdoor unit.
•
Pay attention that the transition wiring for the remote control switch is
required in the following cases.
a
The following functions are set to the sub unit which is not
installed the remote control switch.
* “Remote ON/OFF function, 1, 2 and 3” (external input / output
function)
* “Power supply ON/OFF function, 1 and 2” (function selection)
* “Prohibiting remote control after manual stoppage” (external
input / output function)
* “Group setting by the centralized controller”
b The combination of twin, triple or quad is controlled by one
remote control switch.
c
The address of the indoor unit is changed from the remote
control switch.
18.3 WIRING CONNECTION
The wiring connection of indoor unit is shown below.
1
Insert the wires from the rear side of indoor unit as shown in
the figure below.
Insert the wires
from the rear side
of indoor unit.
Position of electrical box cover. The figure below shows that the
front panel is removed. The electrical box cover can be opened
without removing the front panel.
Electrical
box cover
Switch
cover
2
Open the electrical box cover and perform the field electrical
wiring work. Close the electrical box cover after the electrical
wiring work is completed.
ELECTRICAL WIRING
PMML0498 rev.1 - 11/2018 - P5417093
27
ENGLISH
