Fujitsu AIRSTAGE J-II Design & Technical Manual page 481

2) Straight tube length
A straight tube (minimum length 0.5m) is necessary before header in order to separate the
refrigerant exactly.
0.5m or more
Main pipe
To indoor unit
Heat insulation installation
z „
After brazing the piping, attach heat insulation.
Remove the protective paper for the tape on the heat insulation for the header and attach it.
Tighten by using binders at five locations.
Cover the plugging pipe with heat insulation and seal with tape.
Heat insulation
for plugging pipe
Caution
z „
Separation tube is not allowed to install header kit.
Outdoor
unit
Indoor Indoor Indoor Indoor
unit unit unit unit
To indoor unit
Plugging pipe
Header
Indoor Indoor Indoor
unit unit unit
- (06 - 39) -
0.5m or more
Binder
Heat insulation
for header
Heat insulation
for plugging pipe
Header
Outdoor
unit
Indoor Indoor Indoor Indoor
unit unit unit unit
To indoor unit
Tape (Field
supplied)
Indoor Indoor
unit unit
Indoor
unit