LG MULTI V 5 Manual Book page 103

WARNING
· 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.
· 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.
204
_TROUBLE SHOOTING GUIDE BOOK
LGE Internal
ITR (Cooling / Heating / Automatic)
3.4 Automatic ITR (Cooling / Heating)
ITR (Cooling / Heating / Automatic)
It is a function to get information about amount of refrigerant and EEV status in IDU, ODU if normal or not.
This function is checking process for normal operation of parts and system on
■ Setting the function
operating system.
Function
■ Setting the function
Automatic ITR (Cooling / Heating)
■ Flow Chart
ITR (Cooling)
1. Cooling
■ Flow Chart
• 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 1. Cooling
of refrigerant accurately before entering mode.
Use Only
Fd 7
Function
Fn 7 (Cooling / Heating / Automatic)
205
_ _