ENGLISH-26
Refrigerant piping w
o
rk
Selecting the refrigerant pipe
Outd
oo
r unit capacity (kW)
Liquid side
(mm)
Gas side
(mm)
Outer
diameter
(mm)
Minimum
thickness
(mm)
Temper grade
AE090JXEDEH
ø6.35
ø15.88
ø 6.35
0.7
C1220T-0
AE120JXEDEH
ø9.52
ø15.88
ø 9.52
0.7
AE140JXEDEH
ø9.52
ø15.88
ø12.70
0.8
AE160JXEDEH
ø9.52
ø15.88
ø15.88
1.0
AE090JXEDGH
ø6.35
ø15.88
ø15.88
0.8
C1220T-1/2H OR
C1220T-H
AE120JXEDGH
ø9.52
ø15.88
ø19.05
0.9
AE140JXEDGH
ø9.52
ø15.88
ø22.23
0.9
AE160JXEDGH
ø9.52
ø15.88
f
Install refrigerant pipe depending on the outdoor unit
capacity.
f
Make sure to use C1220T-1/2H (Semi-hard) pipe for more
than Ø19.05
mm. In case of using C1220T-O (Soft) pipe
for Ø19.05
mm, pipe may be broken, which can result in
an injury.
❋
Temper grade and minimum thickness of the
refrigerant pipe
Keeping refrigerant pipe clean and dry
f
To prevent foreign materials or water from entering the pipe, pipes shall be sealed by caps.
Cutting
o
r
fl
aring the pipes
1. Make sure that you prepared the required tools.
- Pipe cutter, reamer,
fl
aring tool and pipe holder, etc.
2. If you want to shorten the pipe, cut it with a pipe cutter ensuring that the cut edge remains at 90° with the side of the
pipe.
- There are some examples of correct and incorrect cut edges below.
90°
Oblique
Rough
Burr
