LG ARUN80LN3 Installation Manual page 88

Test Run
Refrigerant Auto Charging (Setting 1)
This function charges appropriate amount of refrigerant automatically through cycle operation.
It can be used when refrigerant amount Isn't certain because of SVC and leakage.
Main PCB
SW01V
Note
1. After installing the refrigerant charging device,
2. In case air temperature is out of guaranteed temperature, it may end without performing Auto charging
3. Refrigerant charging Time may change according to the charging amount. (Abt. 1.5min/lb)
88 Outdoor Unit
Start
Wait for 3 min. after power reset
Set the Dip S/W.
(Refer to DIP S/W setting)
Press the black button.
(Press until '508' is displayed)
Press the black button.
IDU runs with cooling mode In designated order.
Is it necessary to
charge refrigerant?
No
IDU and ODU are turned off when Auto Charging
is completed. Close the valve.
Press the black button
Press the black button for 2 sec. after turning off
all of dip S/W.
Completed.
Warning : Please reset Main PCB before starting this function
Yes
DIP Switch Settings
as shown in figure, open the valve
*1)
Press the black button
Refrigerant Auto
Charging Process
*2)