LG Electronics 3828A20025U PreparationofPiping, Cut the pipes and the cable, Burrs removal, Check

Models: 3828A20025U

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PreparationofPiping

Installation of Unit

1.Cut the pipes and the cable.•Use the accessory piping kit or the pipes purchased locally.•Measure the distance between the indoor and the outdoor unit.Preparation•Cut the pipes a little longer than measured distance.of•Cut the cable 1.5m longer than the pipe length.Piping2.Burrs removal•Completely remove all burrs from the cut cross section of pipe/tube.3.Putting nut on4.Flaring work5.CheckManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background

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

1.Cut the pipes and the cable.

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 measured distance.

Cut the cable 1.5m 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 dedicated flaring tool as shown below.

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

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

5.Check

Compare the flared work with figure below.

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

Copper

 

Slanted

Uneven Rough

tube

90°

 

 

Pipe

 

 

 

Reamer

Point down

Flare nut

Copper tube

 

Handle

Bar

Bar

"A"

Yoke

 

Cone

Copper pipe

Clamp handleManual background

Red arrow mark

Smooth all round

 

 

Inside is shining without scratches

 

= Improper flaring =

Inclined

Surface

Cracked Uneven

Even length

damaged

thickness

 

 

all round

 

 

12Floor Standing type Air Conditioner

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LG Electronics 3828A20025U PreparationofPiping, Cut the pipes and the cable, Burrs removal, Putting nut on, Flaring work