Aire SK Series Instrukcja instalacji - Strona 6

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FLARING WORK AND CONNECTION OF PIPING

Flaring work
Main cause for gas leakage is due to defect in
flaring work. Carry out correct flaring work in the
following procedure.
Cut the pipes and the cable.
A
Use the piping kit accessory or the pipes
purchased locally.
Measure the distance between the indoor
and the outdoor unit.
Cut the pipes a little longer than measured
distance.
Cut the cable 1.5m longer than the pipe
length.
Copper
Slanted Uneven Rough
pipe
90°
Burrs removal
B
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.
Pipe
Point down
Putting nut on
C
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.
(not possible to put them on after flaring
work)
Flare nut
Copper tube
Flaring work
D
Carry out flaring work using flaring tool as shown
below.
Firmly hold copper pipe in a die in the dimension
shown in the table above.
Bar
Check
E
Smooth all round
Reamer
Even length
all round
6
Outside diameter
mm
inch
ø6.35
1/4
ø9.52
3/8
ø12.7
1/2
ø15.88
5/8
Bar
Copper pipe
Clamp handle
Compare the flared work with figure below.
If flare is noted to be defective, cut off the flared
section and do flaring work again.
Inside is shiny without scratches
= Improper flaring =
Inclined
Surface
damaged
A
mm
0~0.5
0~0.5
0~0.5
0~1.0
Handle
Yoke
Cone
Red arrow mark
Cracked Uneven
thickness