LG LA090CP Service Manual page 15

Connecting the pipings with the indoor unit
and drain hose with drain pipe
1. Align the center of the pipings and sufficiently tighten
the flare nut by hand.
2. Tighten the flare nut with a wrench.
Outside diameter
mm inch
Ø6.35 1/4
Ø9.52 3/8
Ø12.7 1/2
Ø15.88 5/8
Ø19.05 3/4
3. When extending the drain hose at the indoor unit,
install the drain pipe.
Wrap the insulation material around the
connecting portion.
1. Overlap the connection pipe insulation material and
the indoor unit pipe insulation material. Bind them
together with vinyl tape so that there may be no gap.
2. Wrap the area which accommodates the rear piping
housing section with vinyl tape.
3. Bundle the piping and drain hose together by wrap-
ping them with vinyl tape over the range within which
they fit into the rear piping housing section.
Torque
kg.m
1.8
4.2
5.5
6.6
6.6
Indoor unit tubing
Wrench
Indoor unit tubing
Drain hose
Vinyl tape
Adhesive
Plastic bands Insulation material
Connection
pipe
Vinyl tape
Wrap with vinyl tape
(wide)
Connecting cable
Vinyl tape(narrow)
Wrap with vinyl tape
Pipe
Drain hose
Installation
Flare nut Pipes
Open-end wrench (fixed)
Flare nut
Connection pipe
Indoor unit drain hose
(narrow)
Indoor
unit pipe
Pipe
Vinyl tape(wide)
Service Manual 15