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Main power line
connection
Main power
terminal block
Insulation sleeves
attachments
Ground wire
CAUTION
!
It should be wiring power cables or communication cables to avoid
interference with the oil level sensor. Otherwise, That oil level sensor
would be operated abnormally.
Checking the setting of outdoor units
Checking according to DIP switch setting
- You can check the setting values of the Master outdoor unit from the
7 segment LED.
The DIP switch setting should be changed when the power is OFF.
Checking the initial display
The number is sequentially appeared at the 7 segment in 5 seconds
after applying the power. This number represents the setting condition.
[Main Board]
Communication/Ground
wire connection
Ground wire
ODU-IDU
Communication
cable
ODU-ODU
Communication
cable
DIP switch
7 segment
SW01C
(Automatic Addressing Setting)
Quick control Setting
In the factory setting, main PCB DIP switch setting is all "OFF".
- Check and make sure that all the indoor unit model name are
ARNU******4.
- Change the main PCB DIP switch No. 3 "OFF → ON" like below
picture.
- Push the reset button.
DIP Switch
7 segment
Reset button
• Initial display order
Order
No
①
10(8RT)~26(22RT)
②
12(10RT)~24(20RT)
③
12(10RT)~24(20RT)
④
12(10RT)~24(20RT)
⑤
10(8RT)~96(80RT)
⑥
1
38
⑦
46
22
⑧
50
HP
10
12
14
RT
8
10
12
• Example) ARUV603BTE(R)5 (50RT)
60 hp 220 V Cooling Only System (Master unit: 18 HP(14 RT),
Slave 1: 14 HP(12 RT), Slave 2: 14 HP(12 RT),
Slave 3: 14 HP(12 RT))
①
②
③
④
18
14
14
14
Master/Slave DIP switch setting
• Master Unit
DIP switch
ODU Setting
setting
Factory Setting
Mean
Master unit capacity
Slave 1 unit capacity
Slave 2 unit capacity
Slave 3 unit capacity
Total capacity
Cooling Only
380V model
460V model
220V model
Product type
18
20
22
24
26
14
16
18
20
22
⑤
⑥
⑦
⑧
60
1
22
50
• Slave Unit
DIP switch
ODU Setting
setting
Slave 1
Slave 2
Slave 3
29
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