Pipe Size - Fujitsu AIRSTAGE J-III L AJ 072LELAH Series Design & Technical Manual

2-3. PIPE SIZE

„ PIPE DIAMETER, RECOMMENDED MATERIAL AND WALL THICKNESS
„
Nominal Diameter (in)
Outside Diameter (mm)
Material
Wall Thickness *3 (mm)
*1: Allowable tensile stress ≥ 33 (N/mm
*2: Allowable tensile stress ≥ 61 (N/mm
*3: Endurance pressure of the pipe must be 4.2 MPa
Please select the pipe size in accordance with regional standard.
„ 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 seperation tube (header))
Outdoor
unit cooling
HP Model
capacity
code
(kW)
8 072 22.4
10 090 28.0
12 108 33.5
● Condition 1: Total indoor unit capacity ratio ˃ 110%
„
● Condition 2: Between outdoor unit and first separation tube or header ˃ 70 m
„
If both conditions 1 and 2 are met, condition 2 is followed.
1/4" 3/8" 1/2"
6.35 9.52 12.70
JIS H3300 C1220T-O or equivalent *1
0.8 0.8 0.8
2
)
2
)
Outdoor
unit
First separation tube (optional)
Liquid pipe
Standard Condition 1 Condition 2 Standard Condition 1 Condition 2
9.52 (3/8") ←
9.52 (3/8") 12.70 (1/2")
12.70 (1/2") ←
5/8" 3/4"
15.88 19.05
JIS H3300 C1220T-H or equivalent *2
1.0 1.2
.
separation tube (optional)
header (optional)
Outside diameter mm (in)
12.70 (1/2") 19.05 (5/8")
← 22.22 (7/8")
28.58
←
(1-1/8")
- (06 - 16) -
7/8" 1-1/8"
22.22 28.58
1.0 1.0
Pipe size
(table"A")
Pipe size
(table"B")
Pipe size
(table"C")
Gas pipe
← 22.22 (7/8")
← ←
← ←