Step 4 Purging Inert Gas From The Indoor Unit; Step 5 Cutting And Flaring The Pipes - Samsung AC RNCDKG Series Installation Manual

4 When Hanging the set, firstly unscrew the screws from
the both of sides, and then disassemble the Case-sides,
or else the case-side will be damaged by disassembling
it directly. (Only for AC100/120/140RNCDKG)
Unscrew two screws from the both of sides.
5 Reassemble the Case-sides, tightening the screws after
hanging the set. (Only for AC100/120/140RNCDKG)
Remove the Case-sides from the both of sides.
Step 4 Purging inert gas from the
indoor unit
The indoor unit comes with nitrogen gas (inert gas)
charged at the factory. Therefore, all inert gas must be
purged before connecting the assembly piping.
Unscrew the pinch pipe at the end of each refrigerant
pipe.
AC052/071RNCDKG
AC100/120/140RNCDKG
NOTE
• To prevent dirt or foreign objects from getting into the
pipes during installation, do not remove the pinch pipe
completely until you are ready to connect the piping.

Step 5 Cutting and flaring the pipes

1 Make sure that you have the required tools available:
pipe cutter, reamer, flaring tool, and pipe holder.
2 If you wish to shorten the pipes, cut them with a pipe
cutter, ensuring that the cut edge remains at a 90° angle
to the side of the pipe. Refer to the illustrations below
for examples of edges cut correctly and incorrectly.
Pipe cutter
90°
Pipe
3 To prevent any gas from leaking out, remove all burrs at
the cut edge of the pipe, using a reamer.
4 Slide a flare nut on to the pipe and modify the flare.
D
A
Pipe Flare
Side cover
Oblique Rough
Burr
R 0.4 to 0.8 mm
D
L
Flare
English
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