11
ENGLISH
3.3.1
Flaring work
Main cause for refrigerant leakage is due
to defect in the flaring work.
Carry out correct flaring work using the
following procedure:
1.
Cut the pipes and the cable.
• Use the piping kit accessory or
pipes purchased locally.
• Measure the distance between the
indoor and the outdoor unit.
• Cut the pipes a little longer than the
measured distance.
• Cut the cable 1.5m longer than the
pipe length.
Fig.3.3.1-1
2.
Burr removal
• Completely remove all burrs from
the cut cross section of pipe/tube.
• Put the end of the copper tube/
pipe in a downward direction as
you remove burrs in order to avoid
dropping burrs into the tubing.
Fig.3.3.1-2
Oblique
Burr
Roughness
Pipe
Reamer
Face Down
3.
Put nut on
•
Remove flare nuts attached to
indoor and outdoor unit, then put
them on pipe/tube after completed
burr removal. (It is not possible to
put them on after flaring work.)
Fig.3.3.1-3
4.
Flaring work
•
Carry out flaring work using flaring
tool as shown below.
Fig.3.3.1-4
• Firmly hold copper pipe according
to the dimension shown in the table
below.
2XWHUGLDPPP
$PP
0D[
0LQ
̻ರ
̻ರ
̻ರ
̻ರ
Flare Nut
Copper Tube
Bar
Copper
Pipe
Yoke
Handle
Bar
Cone
Red arrow
mark
Clamp Handle
"A"
Pipe
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