Samsung AC NX S C Series, Руководство по установке

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AA
22 English
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 it with a pipe cutter, taking care to ensure that the cut edge remains at a 90°
angle with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.
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.
5. Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring.
Oblique Rough
Burr
Pipe
cutter
Pipe
Outer Diameter (D) Depth (A)
ø6.35 mm 1.3 mm
ø9.52 mm 1.8 mm
ø12.70 mm 2.0 mm
ø15.88 mm 2.2 mm
ø19.05 mm 2.2 mm
Pipe
Flare
Uneven
Thickness
Cracked Damaged
Surface
Inclined Correct
Outer diameter (D,mm) Connection torque (N•m) Flare dimension (L,mm) Flare shape (mm)
Ø 6.35 14~18 8.7~9.1
L
D
90
° ±2°
45
° ±2°
R 0.4~0.8
Ø 9.52 34~42 12.8~13.2
Ø 12.70 49~61 16.2~16.6
Ø 15.88 68~82 19.3~19.7
Ø 19.05 100~120 23.6~24.0
CAUTION
• Connect the indoor and outdoor units using pipes with flared connections (not supplied). For the
lines, use insulated, unwelded, degreased and deoxidized copper pipe, (Cu DHP type to ISO 1337 or
UNI EN 12735-1), s uitable for operating pressures of at least 4200kPa and for a burst pressure of at
least 20700kPa. Copper pipe for hydro-sanitary applications is completely unsuitable.
• For sizing and limits (height difference, line length, max. bends, refrigerant charge, etc.) see
“Connecting refrigerant pipe section”.
Cutting/Flaring the pipes
CAUTION
• If the pipes require brazing ensure that OFN (Oxygen Free Nitrogen) is flowing through the system.
• Nitrogen blowing pressure range is 0.02 ~ 0.05MPa.
Connecting up and removing air in the circuit