LG Multi V ARNU48GBRZ Series Installation Manual page 7

3. Installation of intake air duct
Min. 2m
1/30 Slope
① Inlet Hood
Inlet Hood should be installed such that no water enter inside the unit
② Intake Air Duct
The Intake Air Duct must have down-slope about 1/30.
The length of Intake Air Duct should be longer than 2 m.
③ Fresh Air Intake Unit
If wired remote controller is not connected, it will display strange value to the room temperature
④ Exhaust Fan
Fresh Air Intake Unit will make room the positive pressure.
Exhaust fan should be installed to maintain the room pressure.
⑤ Door
It would be possible to raise in the room air pressure because of Fresh Air Intake Unit.
In that case, the door could hurt someone in front of door.
So be careful of the positive pressure to design the door.
4. The Control System
1) In case of connecting with Standard indoor units, Standard indoor unit should be a master unit.
Separate Fresh Air Intake Unit with Standard indoor units.
Set only one of Standard indoor units to Master.
FAU
Slave
Outlet Air
Exhaust air
Standard Standard
Set one of the Standard Indoor Unit to Master
Inlet Hood
Intake Air Duct
Fresh Air Intake Unit
Exhaust Fan
Door
Standard
* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit
Installation Manual 7
Installation