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_TROUBLE SHOOTING GUIDE BOOK __
· When you put refrigerant, using the specified equipment.
· Please the wired remote control to set the main unit.
· During Indoor unit operating, be careful not to be thermo off.
· Use refrigerant charging, if service only.
· Put the refrigerant by calculating the refrigerant amount surely, if install.
· Refrigerant charging time can be different following the charging refrigerant amount.
(charging time : about 3 kg / min)
· If The outdoor unit occurred frost when Heating automatic refrigerant filling,
Please restart corresponding function after forced defrost.
· When perform the leakage test and air purge, please use a vacuum pump or an inert gas.
(nitrogen)
· If you use Oxygen, compressed air and flammable gas, there are fire and danger of explosion.
There are risk of death, personal injury, fire, explosion.
WARNING
3.4 Automatic ITR (Cooling / Heating)
It is a function to get information about amount of refrigerant and EEV status in IDU, ODU if normal or not.
■ Setting the function
Function
Automatic ITR (Cooling / Heating) Fd 7
■ Flow Chart
1. Cooling
• If the system is in operation before entering the cooling test operation, "IDU / STOP" is displayed,
then the indoor unit is turned off and the FDD operation is entered. please enter the total amount
of refrigerant accurately before entering mode.
LGE Internal
Use Only
■ Flow Chart
This function is checking process for normal operation of parts and system on
operating system.
ITR (Cooling / Heating / Automatic)
ITR (Cooling / Heating / Automatic)
■ Setting the function
Function
ITR (Cooling) Fn 7 (Cooling / Heating / Automatic)
1. Cooling
Basic PartBasic PartBasic PartBasic Part
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