Installation

Flaring Work

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the follow- ing 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 out- door unit.

3.Cut the pipes a little longer than measured distance.

4.Cut the cable 1.5m(59.1in) longer than the pipe length.

Copper

 

Slanted Uneven Rough

pipe

90°

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 drop- ping 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

• Carry out flaring work using flaring tool as shown below.

Outside diameter

 

A

 

 

 

 

 

mm

inch

mm

 

inch

Ø6.35

1/4

1.1~1.3

 

0.043~0.051

Ø9.52

3/8

1.5~1.7

 

0.059~0.066

Ø12.7

1/2

1.6~1.8

 

0.063~0.070

Ø15.88

5/8

1.6~1.8

 

0.063~0.070

Ø19.05

3/4

1.9~2.1

 

0.074~0.082

 

 

 

 

 

Pipe

Reamer

Point down

Flare nut

Copper tube

Firmly hold copper pipe in a die in the dimen- sion shown in the table above.

 

"A"

Handle

Bar

Bar

 

 

 

Yoke

 

 

Cone

Copper pipe

Clamp handle

Red arrow mark

18Room Air Conditioner

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LG Electronics LA121HPMI, LAU121CNM Flaring Work, Cut the pipes and the cable, Burrs removal, Putting nut on, Flaring work

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