LG ARWB200LAS4 Installation Manual page 28

28
Example) Connection of Communication Cable
[BUS type]
- Connection of communication
cable must be installed like
below figure between indoor
unit to outside unit .
Example) Connection of power and communication cable (UWC)
Main Power Connection
Main power
terminal block
Insulation sleeves
attachments
Fix firmly not
to be displaced
! 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.
[STAR type]
- Abnormal operation can be
caused by communication de-
fect, when connection of com-
munication cable is installed like
below figure(STAR type).
Main power
terminal block
Ground wire
Power/
Ground cable
Over
50mm gap
Communication
cable
Communication Connection
ODU-IDU
Communication cable
ODU-ODU
Communication cable
Checking the setting of outside units
Checking according to dip switch setting
- You can check the setting values of the Master outside 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.
- Initial display order
Order No
①
8~20 Master model capacity
②
10~20 Slave 1 model capacity
③
10~20 Slave 2 model capacity
④
10~20 Slave 3 model capacity
⑤
8~80
1
⑥
2
3
38
⑦
46
22
1
⑧
2
- Example) ARWB620LAS4
① ② ③ ④
20 20 12 10
- Master Unit - Slave Unit
Dip switch setting
Mean
Total capacity
Cooling Only
Heat Pump
Heat Recovery
380V model
460V model
220V model
Full function
Core function
⑤ ⑥ ⑦ ⑧
62 3 38 1
Dip switch setting ODU Setting
Slave 1
Slave 2
Slave 3