Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 565

• Straight pipe length
A straight pipe (minimum length 2 ft [0.5 m]) before Separation tube is necessary in order to sepa-
rate the refrigerant exactly.
Main pipe
CAUTION
• Keep the distance 2 ft (0.5 m) or more for straight part to Separation tube, in order to prevent
the outdoor unit malfunction and generation of refrigerant noise.
• About the connecting curvature of field pipe and Separation tube:
The filed pipe should be connected to the Separation tube so that the curved angle on each
side is 3 degree or less.
*: Allowed value based on "A" (center of field pipe) at 2 ft (0.5 m) from "B" (junction of the
Separation tube).
3-2. Separation tube
2 ft (0.5 m) To indoor unit
or more
To indoor unit or
To indoor unit
to separation tube or
to header
A
2 ft (0.5 m)
2 ft (0.5 m)
or more
B
- (06-43) -
To indoor unit
To indoor unit or
to separation tube or
to header
3. Piping connection