Keeping Refrigerant Pipe Clean And Dry; Temper Grade And Minimum Thickness Of The; Brazing The Pipe - Samsung RD080HRXGB Installation Manual

installing the unit
REFRIGERANT PIPING WORKS
Temper grade and minimum thickness of the refrigerant pipe
Outer diameter [mm]
Make sure to use C1220T-1/2H (Semi-hard) pipe for more than Ø19.05mm. In case of using
C1220T-O (Soft) pipe for Ø19.05mm, pipe may be broken, which can result in an injury.
CAUTION

Keeping refrigerant pipe clean and dry

To prevent foreign materials or water from entering the pipe, it is important to keep the refrigerant
pipe clean and dry and to seal it during installation.
Exposure place
Outside exposure
Inside exposure

Brazing the pipe

• Make sure that there is no moisture inside the pipe.
• Make sure that there are no foreign materials and impurities in the pipe.
• Make sure that there is no leak.
• Make sure to follow the instruction when brazing the pipe.
The use of Nitrogen gas
1. Use Nitrogen gas when brazing the pipes as shown
in the picture.
2. If you do not use Nitrogen gas when brazing the
pipes, oxide may form inside the pipe. It can cause
the damage of the compressor, valves.
3. Adjust the flow rate of the Nitrogen gas with a
pressure regulator to maintain 0.05m
Direction of the pipe when brazing
• Performing the brazing of the pipe should be headed downward or horizontally.
Downward
Note Avoid brazing the pipe upward.
20_ installing the unit
Minimum thickness [mm]
Ø6.35
Ø9.52
Ø12.70
Ø15.88
Ø19.05
Ø22.23
Ø25.40
Ø28.58
Ø31.75
Ø38.10
Ø44.45
Ø50.80
Side
0.7
0.7
0.8
1.0
0.9
0.9
1.0
1.1
1.1
1.35
1.6
2.0
Exposure time
Longer than one month
Shorter than one month
-
Brazing part
Pressure regulator
/h or less.
3
Upward
Temper grade
C1220T-O
C1220T-1/2H
or
C1220T-H
Sealing type
Pipe pinch
Taping
Taping
1/4" copper pipe
Nitrogen gas
Stop valve
Taping
Flowmeter