LG Electronics AS-W096URH0/UBH0/UWH0/UMH0 service manual Drill a Hole in the Wall, Flaring Work

Installation

Drill a Hole in the Wall
• Drill the piping hole with a ø 70mm hole core drill.
Drill the piping hole at either the right or the left with	Indoor
the hole slightly slanted to the outdoor side.

WALL

Outdoor

5-7mm (3/16"~5/16")

Flaring Work

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 out- door unit.

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

4.Cut the cable 1.5m 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 drop- ping 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

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	0~0.5
Ø9.52	3/8	0~0.5
Ø12.7	1/2	0~0.5
Ø15.88	5/8	0~1.0
Ø19.05	3/4	1.0~1.3

Flare nut

Copper tube

	"A"	Handle
Bar		Bar
		Yoke
		Cone

Copper pipe

Clamp handle

Red arrow mark

Service Manual 15