LG Electronics LA120CPI, LA120HPO, LA090HPO Flaring work and connection of piping, Flaring Work

Flaring work and connection of piping

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.

Cutting 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 4.9ft(1.5m) longer than the pipe length.

Removing burrs

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)

Copper		Slanted Uneven Rough
pipe	90°

Pipe

Reamer

Point down

Flare nut

Copper tube

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		A
mm	inch	mm
Ø6.35	1/4	1.1~1.3
Ø9.52	3/8	1.5~1.7
Ø12.7	1/2	1.6~1.8
Ø15.88	5/8	1.6~1.8
Ø19.05	3/4	1.9~2.1

	"A"	Handle
Bar		Bar
		Yoke
		Cone

Copper pipe

Clamp handle

Red arrow mark

Service Manual 19