Pipe Size - Fujitsu AOU48RLXFZ Design & Technical Manual

2-3.

PIPE SIZE

PIPE DIAMETER, RECOMMENDED MATERIAL AND WALL THICKNESS
Nominal Diameter
Outside Diameter
Material
Wall Thickness *2
*1: Allowable tensile stress ≥ 33 (N/mm
*2: Endurance pressure of the pipe must be 609 psi (4.2 MPa).
Please select the pipe size in accordance with local rules.
PIPE SIZE SELECTION
Separation
Pipe size
table"B"
Separation
Outdoor unit
(in) 1/4" 3/8"
(mm) 6.35 9.52
JIS H3300 C1220T-O or equivalent *1
(mm) 0.8 0.8
2
)
Second
tube
First Pipe size
table"C"
tube
Pipe size
table"A"
- (06 - 14) -
1/2" 5/8" 3/4"
12.70 15.88 19.05
0.8 1.0 1.2
Branch box 3
(Secondary)
Branch box 2
(Secondary)
Branch box 1
(Primary)
Indoor units
Pipe size
table"D"
6. SYSTEM DESIGN