LB-D2460HL - LG Air Conditioner Service Manual (repair manual). Page 19

–19–

Main cause of gas leakage is defect in flaring
work. Carry out correct flaring work in the following
procedure.

■

Use the accessory piping kit or the pipes pur-
chased locally.

■

Measure the distance between the indoor and
the outdoor unit.

■

Cut the pipes a little longer than measured dis-
tance.

■

Cut the cable 1.5m longer than the pipe length.

■

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.

■

Remove flare nuts attached to indoor and out-
door units, than put them on pipe/tube having
completed burr removal.
(Not possible to put them on after flaring work)

■

Carry out flaring work using flaring tool as shown
below.

Firmly hold copper tube in a bar(or die) as indicat-
ed dimension in the table above.

■

Compare the flared work with figure.

■

If flare is noted to be defective, cut off the flared
section and do flaring work again.

Copper

tube

90

°

Slanted   Uneven  Rough

Pipe

Reamer

Point down

Flare nut

Copper tube

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Outside Diameter

" A "

Gas

Liquid

Gas

Liquid

24K BTU

5/8"

3/8"

0.8~1.0 0.5~0.8

Capacity