13
Refrigerant pipe connection
Step 5: Installation of Connection Pipe
Copper tube
Flare nut
1 Flaring
work
Main cause for refrigerant leakage is due to
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work using the following procedure:
A:
Cut the pipes and the cable.
Use the piping kit accessory (if applicable) or
pipes purchased locally.
Measure the distance between the indoor and
the outdoor unit.
Cut the pipes a little longer than the measured
distance.
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D: Flaring work.
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shown below.
Handle
Bar
Bar
Yoke
Cone
Pipe
Copper pipe
Clamp handle
Red arrow mark
Firmly hold copper pipe in a die according to
the dimension shown in the table below.
Oblique Roughness Burr
B: Burr removal
Completely remove all burrs from the cut
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downward direction as you remove burrs in
order to avoid burrs dropping into the tubing.
E: Check
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diagram.
If the pipe has any defect, cut off the enlarged
section and redo the work.
Pipe
Smooth all around
Face down
Reamer
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Inclined Cracked
Damaged
surface
Uneven
thickness
Even length all
around
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having completed burr removal.
Make an independent covering for each
pipe with the appropriate tubular isolation.
caution
Outer diam. (mm)
A (mm)
Max. Min.
Ɏ´
1.3
0.7
Ɏ´
1.6
1.0
Ɏ´
1.8
1.0
Ɏ´
2.2
