Fujitsu AOU48RLXFZ Design & Technical Manual page 184

Straight pipe length
● When connecting the main piping, do not bend
it near the connection section.
● If the main pipe must be bent due to unavoidable
circumstances, ensure that the linear section is
5-29/32inch (150mm) or more.
HEAT INSULATION INSTALLATION
After connection the pipes, use the supplied heat insulation to insulate them.
● Remove the protective sheet from the double-stick tape that is affi xed to the heat insulation.
● Use tape (field supply) to seal the seam so that there will be no gap at the junction between
the aforementioned heat insulation and coupler insulation, and between coupler insulation
and the heat insulation on the local piping.
Tape (field supply)
Coupler insulation
(Gas pipe ... Large)
(Liquid pipe ... Small)
Tape (field supply)
● Be sure to install the heat insulation on liquid pipes and gas pipes. Unless they are thermally
insulated, water condensation can cause accidents or reduction in performance.
● After installing the heat insulation, if you worry about possible condensation due to the high
humidity of installation position, please use locally procured heat insulation to reinforce insulation.
to outdoor unit
Tape (field supply)
Coupler insulation
Tape (field supply)
Tape (field supply)
CAUTION
Heat insulation
(field supply)
- (06 - 30) -
to branch box to branch box
Straight pipe=5-29/32in.
(150mm) or more
R
Insulation
No gap
6. SYSTEM DESIGN