THE INDOOR UNIT INSTALLATION
ENGLISH
11
Copper
tube
90
Slanted Uneven Rough
Pipe
Reamer
Point down
Flare nut
Copper tube
B
ar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
B
ar
"A"
Inclined
Inside is shining without scratches.
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Outside diameter
A
mm
inch
mm
inch
Ø6.35
1/4
1.1~1.3
0.04~0.05
Ø9.52
3/8
1.5~1.7
0.06~0.07
Ø12.7
1/2
1.6~1.8
0.06~0.07
Ø15.88
5/8
1.6~1.8
0.06~0.07
Ø19.05
3/4
1.9~2.1
0.07~0.08
Flaring work
Main cause of gas leakage is defect in flaring
work. Carry out correct flaring work in the fol-
lowing procedure.
1
Cut the pipes
- Use the accessory piping kit or the pipes
purchased locally.
- Measure the distance between the
indoor and the outdoor unit.
- Cut the pipes a little longer than meas-
ured distance.
- Cut the cable 1.5m(4.9ft) longer than the
pipe length.
2
Burrs removal
- Completely remove all burrs from the cut
cross section of pipe/tube.
- Put the end of the copper tube/pipe to
downward direction as you remove burrs
in order to avoid to let burrs drop in the
tubing.
3
Putting nut on
- Remove flare nuts attached to indoor and
outdoor units, than put them on
pipe/tube having completed burr removal.
(Not possible to put them on after flaring
work)
4
Flaring work
- Carry out flaring work using flaring tool as
shown below.
5
Check
- Compare the flared work with figure.
- If flare is noted to be defective, cut off
the flared section and do flaring work
again.
Firmly hold copper tube in a bar(or die) as
indicated dimension in the table above.
Summary of Contents for Art Cool LA240HSV
Page 29: ......
