Fujitsu AOU48RLXFZ1 - Separation Tube Connection; Flare Connection Procedures

En-14
Separation tube connection5. 2.
CAUTION
Use genuine separation tubes for the refrigerant piping branches. Separation tubes may be used for piping •
between the outdoor unit and branch box.
Select number of separation tubes and purchase it before starting the installation work.•
Any vertical piping shall be in the part of the main piping. If a main pipe is bent, keep the straight part more than 10 times •
the diameter of the connected pipe. A variance in the amount of refrigerant may be caused if the straight part is short.
For details, refer to the Installation Manual of separation tubes.•
CAUTION
Separation tube
A
B
A B
A
B
A
B
A
B
A
B
Horizontal
line
OK
Horizontal
Vertical
or
NO GOOD
±15°
A : Outdoor unit or Separation tube
B : Branch box or Separation tube
Name and shape
Liquid pipe
Gas pipe
Flare connection (pipe connection)5. 3.
CAUTION
Donotusemineraloilonaaredpart.Preventmineraloilfromgettingintothesystemasthiswouldreducethe•
lifetime of the units.
While welding the pipes, be sure to blow dry nitrogen gas through them.•
The maximum lengths of this product are shown in the table. If the units are further apart than this, correct •
operation cannot be guaranteed.
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