LG ARUN50LH2A Installation Manual page 56

Test Run
Refrigerant Auto Charging Function
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
SW01S
Main PCB
Set the DIP swtich.
SW01B
Refrigerant Auto Changing : 1,2,7 ON
SW02B
Main PCB
Press the black button on main PCB.
( Press until '508' is displayed )
SW01V
Main PCB
Press the black button on main PCB.
SW01V
IDU runs with cooling mode In designated order.
IDU and ODU are turned off when Auto Charging
is completed. Close the valve.
Main PCB
Press the black button
SW01V
Press the black button for 2 sec. after turning off
all of DIP swtich.
56 Outdoor Unit
Start
Wait for 3 min. after power reset
Is it necessary to
charge refrigerant?
No
Completed.
Note
1. After installing the refrigerant charging device
as shown below in figure, open the valve.
2. In case air temperature is out of guaranteed temperature,
it may end without performing auto charging.
3. Refrigerant auto charging may over without using capillary
assembly by sudden inflow of liquid state refrigerant.
4. Refrigerant Charging Time may change according to the
charging amount. (Refrigerant Charging Time : about 3 min./kg)
Yes
Press the black button
Refrigerant Auto
Charging Process
Note 1)
Note 3)
Note 2)