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C6
Any bend in the tubing must have a minimum radius of 100mm toAny bend in the tubing must have a minimum radius of 100mm to
prevent leakage.prevent leakage.
Do not bend any section of the tube repeatedly.Do not bend any section of the tube repeatedly.
Do not remove the flare nut from the tubing in the indoor unit until youDo not remove the flare nut from the tubing in the indoor unit until you
are ready to connect it to the outdoor unit.are ready to connect it to the outdoor unit.
Flaring of pipe
• Insert the flare nut or coupling nut over
the tubing with the threaded end facing
the end of the tubing.
• Clamp the tube in the flaring block,
adjust the tube so that it is slightly
above the block (about 1/3 of the total
height of the flare).
• Place the yoke on the block with the
taper cone over the end of the tube.
• Turn the handle until the flare is
completed.
• Check for proper flaring of the tube. A
properly flared tube should be of even
thickness and evenly shine.
PREPARATION OF PIPING
Tubing
CAUTION :CAUTION :
Removing burrs
• Remove burrs from the cut edges of
the pipes.
• Turn the pipe end down to avoid the
metal powder entering the pipe.
CAUTION :CAUTION :
If burrs are not removed, they mayIf burrs are not removed, they may
cause a gas leakage when incause a gas leakage when in
operation.operation.