Fujitsu AIRSTAGE J-IIIL - Page 551

• Selection of pipe size
Pipe no.
Pipe diameter: in (mm)
Length example
ft (m)
Liquid pipe Gas pipe
a Ø3/8 (9.52) Ø3/4 (19.05) 131 (40)
a1 Ø1/4 (6.35) Ø1/2 (12.70) 49 (15)
b Ø1/2 (12.70) Ø7/8 (22.22) 16 (5)
b1 Ø1/4 (6.35) Ø1/2 (12.70) 32 (10)
c Ø1/2 (12.70) Ø7/8 (22.22) 16 (5)
c1 Ø1/4 (6.35) Ø1/2 (12.70) 32 (10)
d Ø1/2 (12.70) Ø3/4 (19.05) 16 (5)
d1 Ø1/4 (6.35) Ø1/2 (12.70) 32 (10)
e Ø3/8 (9.52) Ø3/4 (19.05) 16 (5)
e1 Ø1/4 (6.35) Ø1/2 (12.70) 32 (10)
f Ø3/8 (9.52) Ø5/8 (15.88) 16 (5)
f1 Ø1/4 (6.35) Ø1/2 (12.70) 32 (10)
g Ø3/8 (9.52) Ø5/8 (15.88) 16 (5)
g1 Ø1/4 (6.35) Ø1/2 (12.70) 32 (10)
h Ø1/4 (6.35) Ø3/8 (9.52) 22 (7)
• Limitation check
Pipe Diagram
Example Limitation
Judge
ft (m)
Total pipe length Total 498 (152)
1,312 (400)
or less
OK
Between outdoor unit and farthest indoor
unit
a + b + c + d + e + f
+ g + h
252 (77)
393 (120)
or less
OK
Between the first separation tube and the
farthest indoor unit
b + c + d + e + f + g
+ h
121 (37)
295 (90)
or less
OK
Between outdoor unit and the nearest
indoor unit
a + a1 180 (55)
17 (5)
or more
OK
Between outdoor unit and the first
separation tube
a 131 (40)
10 (3)
or more
OK
2-6. Piping design example - (06-29) - 2. Piping design
SYSTEM DESIGN SYSTEM DESIGN