Cut The Pipes And The Cable; Burrs Removal; Putting Nut On; Flaring Work - LG AS-W0964DH0/GH0 Service Manual

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.

1. Use the piping kit accessory or the pipes purchased locally.
2. Measure the distance between the indoor and the outdoor
unit.
3. Cut the pipes a little longer than measured distance.
4. Cut the cable 1.5m longer than the pipe length.

Burrs removal

1. Completely remove all burrs from the cut cross section of
pipe/tube.
2. 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.

Putting nut on

• 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)
Flaring work
1. Firmly hold copper pipe in a die in the dimension shown in the table below.
2. Carry out flaring work with the flaring tool.
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
A
mm
0~0.5
0~0.5
0~0.5
0~1.0
1.0~1.3
Copper
pipe
90°
Point down
Flare nut
Copper tube
Bar
Bar
Copper pipe
Clamp handle
Installation
Slanted Uneven Rough
Pipe
Reamer
Handle
Yoke
Cone
Red arrow mark
Service Manual 17