LG MULTI V JRUN120LTE5 Installation Manual page 37

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 2 m or less
Pipes between outdoor units are 2 m or
longer
- If the distance between the outdoor units becomes more than 2 m, 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.
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
The maximum pipe
length after the first
branching between the
outdoor units is 10m or
less
2 m or less
Oil Trap
0.2 m or longer
2 m or less
2 m or longer
Oil Trap Oil Trap
2 m or less 2 m or less
2 m or longer 2 m or longer
Oil Trap
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