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ENGLISH
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]
Dip switch
7 segment
SW01C
(Automatic Addressing Setting)
Main power
terminal block
Insulation sleeves
attachments
Ground wire
Ground wire
ODU-IDU
Communication
cable
ODU-ODU
Communication
cable
Main power
terminal block
Ground wire
When connecting
Communication wires
/ Ground wire from
front guide panel
When connecting
Main power lines
/ Ground wire from
front guide panel
Gap : Over
50mm(1.97’’)
Front Side
Fix firmly with cable tie
or clamp cord not to be
displaced
Main power line
connection
Communication/Ground
wire connection
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 pic-
ture.
- Push the reset button.
7 segmentDip Switch
Reset button
• Initial display order
• Example) ARUN620LTE5
62hp 380V Heat Pump System (Master unit: 18 hp, Slave
1: 16 hp, Slave 2: 14hp, Slave 3: 14hp)
Order No Mean
①
8~26 Master unit capacity
②
10~24 Slave 1 unit capacity
③
10~24 Slave 2 unit capacity
④
10~24 Slave 3 unit capacity
⑤
8~96 Total capacity
⑥
2 Heat Pump
⑦
38 380V model
46 460V model
22 220V model
⑧
50 Product type
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
18 16 14 14 62 2 38 50
Example) Connection of power and communication cable (UXB)
Main power
terminal block
Ground wire
Gap : Over
50mm(1.97’’)
When connecting
Main power lines
/ Ground wire from left side
When connecting
Communication wires
/ Ground wire from left side
Bottom Side
1,MFL67221438,영영 2018. 10. 4. 영영 11:29 Page 26
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