Fujitsu Airstage J-II Series Design & Technical Manual page 580

2-3. PIPE SIZE
„ PIPE SIZE SELECTION
„
● Caution
„
After referring to "COOLING CAPACITY TABLE" followed, select each Pipe size, Separation
tube and Header from "COOLING CAPACITY TABLE" of outdoor unit and Indoor unit
connected in the system.
z Pipe size table "A"
„
(Between outdoor unit and the first separation tube (header))
Outdoor
Model
Ton unit cooling
code
capacity (Btu/h)
3 36 36,000
4 48 48,000
5 60 60,000
Outdoor
unit
First separation tube (optional)
Between outdoor unit and the
farthest indoor unit < 295 ft. (90m)
Liquid pipe
3/8" (9.52)
3/8" (9.52)
3/8" (9.52)
separation tube (optional)
header (optional)
Outside diameter
Between outdoor unit and the
farthest indoor unit ≥ 295 ft. (90m)
Gas pipe
5/8" (15.88)
5/8" (15.88)
3/4" (19.05)
- (06 - 16) -
Pipe size
(table"A")
Pipe size
(table"B")
Pipe size
(table"C")
in. (mm)
:
Liquid pipe Gas pipe
3/8" (9.52) 3/4" (19.05)
3/8" (9.52) 3/4" (19.05)
3/8" (9.52) 3/4" (19.05)