ENGLISH-30
Refrigerant piping work
Selecting the refrigerant pipe
Outdoor unit capacity (kW)
Liquid side
(mm)
Gas side
(mm)
Outer
diameter
(mm)
Minimum
thickness
(mm)
Temper grade
AE090RXEDEG
ø6.35
ø15.88
ø 6.35
0.7
C1220T-0
AE090RXEDGG
ø6.35
ø15.88
ø 9.52
0.7
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.
ø12.70
0.8
ø15.88
1.0
ø15.88
0.8
C1220T-1/2H OR
C1220T-H
ø19.05
0.9
ø22.23
0.9
f
Temper grade and minimum thickness of the
refrigerant pipe.
f
The material specification (thickness) of the
refrigerant pipes must be in accordance with
EU and/or local legislation and standards.
Keeping refrigerant pipe clean and dry
f
To prevent foreign materials or water from entering the pipe, pipes shall be sealed by caps.
Cutting or flaring the pipes
1. Make sure that you prepared the required tools.
- Pipe cutter, reamer, flaring 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