Installation Manual 41
ENGLISH
n Pipe connection between outdoor units
(General Case)
n Pipes between outdoor units are
2m or less
n Pipes between outdoor units are
2m or longer
n Examples of Wrong Pipe Connections
The maximum pipe length
after the first branching
between the outdoor units is
10m or less
Oil Trap
Oil Trap Oil Trap
2m or less
2m or less 2m or less
0.2m or more
2m or longer
2m or longer2m 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.
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.
Oil Trap
u 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.
Refrigerant piping system
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