LG ARUN Series Service Manual page 53

I Checking according to dip switch setting
1. 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.
2. It checks whether the input is properly performed without the bad contact of the dip switch or not
I Checking the setting of the Master unit
The number is sequentially appeared at the 7 segment in 5 seconds after applying the power. This
number represents the setting condition.(For example, represents 3Ø 208/230V 20HP heat pump)
Master model code ➔ Slave1 model code ➔ total capacity ➔ 2 ➔ 25 ➔ 140
1 ~255 : Master model code
1 ~255 : Slave1 model code
1 ~255 : Slave2 model code
8~32HP : HP number(sum of master capacity and slave capacity)
No display : cooling only 2 : heat pump 3 : Sync
25 : Nomal
140 : 3Ø 208/230V 160 : 3Ø 460V
Example) 3Ø 208/230V 20HP heat pump
151 ➔ 151 ➔ 20 ➔ 2 ➔ 25 ➔ 140
CAUTION
Product may not properly operate if the relevant DIP switch is not properly setup.
Model Code
3Ø 208/230V
Model Code
150
151
152
Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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Refer to table code
3Ø 460V
Unit (HP)
8
10
12
Model Code Unit (HP)
171
172
173
174
175
- 53 -
Test Run
8
10
12
14
16
LGE Internal Use Only