Drill A Hole In The Wall; Flaring Work; Cut The Pipes And The Cable; Burrs Removal - LG ARNU07GSBL2 Installation Manual

Drill a Hole in the Wall

- Drill the piping hole with a ø65 mm hole core
drill. Drill the piping hole at either the right or
the left with the hole slightly slanted to the
outdoor side.
WALL
Indoor

Flaring Work

Main cause for gas leakage is due to defect of
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 longer than the pipe
length.
Copper
90°
pipe
Outdoor
Slanted Uneven Rough

Burrs removal

1. Completely remove all burrs from the cut
cross section of pipe/tube.
2. While removing burrs put the end of the
copper tube/pipe in a downward direction
while removing burrs location is also
changed 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 finishing
flare work)
Flare nut
Copper tube
Flaring work
1
Firmly hold copper pipe in a bar with the di-
mension shown in below table table
below.
2
Carry out flaring work with the flaring tool.
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
INSTALLATION
9
A
mm
1.1~1.3
1.5~1.7
1.6~1.8
1.6~1.8
1.9~2.1