LG LA120CPI - Manual (Page 21)

Service Manual 21
Connecting the piping 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.
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.
Flaring work and connection of piping
mm inch kgf.cm
Ш6.35 1/4 180~250
Ш9.52 3/8 340~420
Ш12.7 1/2 550~660
Outside diameter Torque
Wrap with vinyl tape
Drain hose
Pipe
Vinyl tape(wide)
Indoor unit tubing Flare nut Pipings
Torque wrench
Indoor unit tubing
Spanner (fixed)
Connection pipe
Flare nut
Vinyl tape(narrow)
Adhesive
Drain pipe
Indoor unit drain hose
Plastic bands
Insulation material
Vinyl tape(narrow)
Connection
pipe
Connecting cable
Vinyl tape
(wide) Wrap with vinyl tape
Indoor
unit pipe
Pipe