Installation

FlaringWork

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(59.1in) 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.

Copper

 

Slanted

Uneven Rough

pipe

90°

 

 

Pipe

 

 

 

Reamer

Point down

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

Flare nut

Copper tube

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

 

 

 

14Room Air Conditioner

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Image 14
LG Electronics LS305HV Flaring Work, Cut the pipes and the cable, Burrs removal, Putting nut on, Flaring work

LS305HV specifications

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