Precaution For Installation - Fujitsu AS*9LSACW Service Instructions Manual

2. PRECAUTION FOR INSTALLATION

Precaution for installation
Selection of pipe
Pipe thickness
Outer diameter
1/4" (6.35mm)
3/8" (9.52mm)
1/2 " (12.7mm)
Be sure to use this pipe thickness and over
for countermeasure against higher
pressure.
Flare and flare nuts
Diameter
Refrigerant
A
B
C
Nut width
Do not use existing (for R22) pipes
• Be sure to use new pipes when replacing
conventional (R22) model with
(R407C, R410A)
• If you use existing pipes, it may cause
resolution of compressor oil by remaining
mineral oil.
Thickness
0.8 mm
0.8 mm
0.8 mm
1/4" (6.35mm) 3/8" (9.52mm)
R22
R410A R410A
/R407C
9.1 9.0 13.2
13 12 20
12 11 16
17 22
Always use the flare nut that is packed
with the product.
1/2" (12.7mm)
R22 R22
R410A
/R407C /R407C
13.0 16.6
16.2
15 13 20
12.5 19 16
26 24
HFC
model.
06-02