16
EN
Preparing the Pipe and Power
Cable
Once the gap between the indoor unit and the
outdoor unit one has been measured, cut the pipe
and power cable to the proper length.
• Cut the pipe slightly longer than the measurement.
• Cut the power cable 1.5 m longer than the pipe.
NOTE
• If you purchase the pipe separately, do not use
thinner pipe than the specified value.
• Use the deoxidized copper as piping materials to
install.
Flare Work
Flaring must be performed accurately to prevent any
gas leakage.
1
Cut the pipe with a copper tube cutter.
2
Remove the burrs using a reamer.
• Hold the edge of the cut pipe so it is pointing
downward and remove the burrs. This helps
prevent metal powder from getting into the
pipe.
3
Put the flare nut onto the pipe (burr is removed).
4
After inserting the pipe into the tube expander,
begin flaring.
• As seen in diagram “a”, put the pipe slightly
above the upper side of the Bar.
<Wing Nut> <Clutch>
Pipe Size
a
(Wing
Nut)
Thickness
mm inch mm mm
Ø 6.35 Ø 1/4 1.1~1.3 0.7
Ø 9.52 Ø 3/8 1.5~1.7 0.8
Ø 12.70 Ø 1/2 1.6~1.8 0.8
Ø 15.88 Ø 5/8 1.6~1.8 1.0
NOTE
• a (Clutch): 0.0~0.5 mm
• Temper grade of pipe: Annealed
5
Check out the condition of the flare.
• Check that the flared section of the pipe (1)
was flared evenly in its curved surface and
thickness.
• Make sure all flared surfaces (2) have been
flared smoothly.
Example of Correct Flaring
Example of Incorrect Flaring
NOTE
• If the expanded pipe has tilting, surface damage,
cracks, or a thickness imbalance, perform the
flaring operation again.
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