Keeping Refrigerant Pipe Clean And Dry; Brazing The Pipe - Samsung RD VHXF Series Installation Manual

installing the unit
REFRIGERANT PIPING WORKS

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
less.
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
Exposure time
Longer than one month
Shorter than one month
-
Brazing part
Pressure regulator
/h(1.77ft /h) or
3 3
Side
Sealing type
Pipe pinch
Taping
Taping
1/4˝ copper pipe
Nitrogen gas
Stop valve
Taping
Upward
Flowmeter