Fujitsu Airstage J-II Series Design & Technical Manual page 598

3-4. HEADER
„ HEADER INSTALLATION
„
z Header selection
„
3 - 6 Branches
UTR-H0906L
When Separate into two branches, use a separation tube instead.
z Installation
„
(1) Connecting the connection pipes from the indoor units.
Gas pipe
Outdoor
unit side
(2) Use a pipe cutter to cut at the location that matches the piping size or use expanders as
necessary.
Joint pipe
(3) Attach a plugging pipe provided if there is no piping connected at the headers.
Header
3 - 8 Branches
UTR-H0908L
Always have at least one
indoor unit connected to
the port furthest (opposite)
the outdoor unit side.
You can connect the
indoor unit to any branch.
Field pipe
Expander
Connection pipes
Closed pipes
- (06 - 34) -
Liquid pipe
You can connect the
Outdoor
indoor unit to any branch.
unit side
Cut in the center of
the connections
Always have at least one
indoor unit connected to
the port furthest (opposite)
the outdoor unit side.