LG Multi V ARUV100LTS4 Installation Manual page 38

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
38
Pipe Connection Method/Precautions for
Series connections between Outdoor units
- Separate Y branch joints are needed for series connections between outdoor units.
- Please refer to the below connection examples to install pipe connections between outdoor
units.
Pipe connection between outdoor units (General Case)
Pipes between outdoor units are 2m or less
Pipes between outdoor units are 2m or longer
- If the distance between the outdoor units becomes more than 2m, apply Oil Traps between the
gas pipes.
- If the outdoor unit is located lower than the main pipe, apply Oil Trap.
Examples of Wrong Pipe Connections
If the main pipe is
higher than the
outdoor units, oil is
accumulated in the
outdoor unit.
If there are differences in the height
between the outdoor units, oil is
accumulated in the lower outdoor unit.
The maximum pipe
length after the first
branching between the
outdoor units is 10m or
less
2m or less
Oil Trap
0.2m or more
2m or less
2m or longer
Oil Trap Oil Trap
2m or less 2m or less
2m or longer 2m or longer
Oil Trap