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ELECTRICAL WIRING
Example of wiring connection
3N~
1N~
400V / 50Hz
230V / 50 Hz
*1, *2
ELB + CB
ELB + CB
Main switch
Main
Outdoor unit
switch
E
L1
L2L3 N
1 2
E
Earth
wiring
Power source
cable
Control cable
(Field supplied)
Pay attention
to the phase of
hielded twisted pair cable
S
power source
This cable dose not need any polarity.
when wiring.
Do not apply an excessively high voltage
to this cable. (Rated voltage: 5V)
Connect to both ends of shield tube to
earth.
For SET-FREE Series
Select wiring capacity according to the following table. Install the ELB and the main switch to each as shown in the figures below.
ELB
Total indoor
unit capacity
n / A / mA
< 7A
<10A
2 / 40 / 30
< 15A
; CB: Circuit Breaker
ELB: Earth Leakage Breaker
*
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
1):
source wiring is longer than the above value, select the minimum wiring size which the voltage drop is within 2%.
?
N O T E
•
On the outside indoor unit, the power source cable, control cable and remote control cable shall be installed separately as possible.
•
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
22
PMML0552 rev.1 - 02/2021 - A10635790A
combinations for individual operation
Remote control
switch (Option)
Indoor unit number 1
*8
E
E
L1
N
A B
1 2
*3
*7
*3
*5
*6
Pull box
Remote control switch cable
(Field supplied)
0.75mm
2
hielded twisted pair cable
S
This cable dose not need any polarity.
Do not apply an excessively high voltage to
this cable. (Rated voltage: 5V)
Connect to one end of shield tube to earth.
Power Source
Main Switch
Switch
Fuse
capacity (A)
capacity (A)
*10
or CB *10
30
15
30
20
30
30
Remote control
switch (Option)
Indoor unit number 2
Indoor unit number 3
*8
E
L1
N
E
A B
1 2
L1
*7
*5
*5
*6
Pull box
0.75mm
Minimum
Wiring
wire size
length (m)
*1)
(mm
)
*11
2
2.5
30
4.0
34
6.0
34
Remote control
Remote control
switch (Option)
switch (Option)
Indoor unit number 4
*8
E
N
E
A B
1 2
L1
N
*7
*5
*6
Pull box
The details of wire, ELB
2
and main switch for outdoor
unit shall be referred to
"Installation & Operation
Manual" of connected
outdoor unit.
Transition wire
Earth wire
size for control
size (mm
)
2
circuit (mm
)
2
*12
*13
Shielded twisted
pair cable
0.75 ~ 1.25
3.5
Connect to both
ends of shield
tube to earth.
*8
E
A B
1 2
E
*7
Remote control
switch cable
(mm
)
2
Shielded twisted
pair cable
0.75
Connect to one
end of shield
tube to earth
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