Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 544

¢ Pipe size selection
Use the following tables to select the Refrigeration Pipe Size, Separation tube and Header.
• Pipe size table "A"
Between Outdoor unit and the first separation tube (header)
– Standard
Outdoor unit
Ton
model code
6 72
8 96
10 120
– Condition 1: Total indoor unit capacity ratio > 110%
Outdoor unit
Ton
model code
6 72
8 96
10 120
– Condition 2: Between outdoor unit and first separation tube or header > 229 ft (70 m)
Outdoor unit
Ton
model code
6 72
8 96
10 120
2-3. Pipe size
Outdoor
unit
First separation tube (optional)
Outdoor unit cooling
capacity
Btu/h
72,000
96,000
120,000
Outdoor unit cooling
capacity
Btu/h
72,000
96,000
120,000
Outdoor unit cooling
capacity
Btu/h
72,000
96,000
120,000
Separation tube (optional)
Header (optional)
Outside diameter
Liquid pipe
3/8 (9.52)
3/8 (9.52)
1/2 (12.70)
Outside diameter
Liquid pipe
3/8 (9.52)
1/2 (12.70)
1/2 (12.70)
Outside diameter
Liquid pipe
1/2 (12.70)
1/2 (12.70)
1/2 (12.70)
- (06-22) -
Pipe size
(table "A")
Pipe size
(table "B")
Pipe size
(table "C")
Gas pipe
in (mm)
3/4 (19.05)
7/8 (22.22)
1-1/8 (28.58)
Gas pipe
in (mm)
3/4 (19.05)
7/8 (22.22)
1-1/8 (28.58)
Gas pipe
in (mm)
7/8 (22.22)
7/8 (22.22)
1-1/8 (28.58)
2. Piping design