LG UM30F Installation Manual page 50

THE INDOOR UNIT INSTALLATION
50
Connecting the installation pipe and
drain hose to the indoor unit.
1
Align the center of the pipes and
sufficiently tighten the flare nut by hand
Indoor unit tubing
2
Tighten the flare nut with a wrench
Outside diameter
mm inch
Ø 6.35 1/4
Ø 9.52 3/8
Ø 12.7 1/2
Ø 15.88 5/8
Ø 19.05 3/4
Wrench
Indoor unit tubing
CAUTION
!
• When mechanical connectors are reused
indoors, sealing parts shall be renewed.
• When flared joints are reused indoors,
the flare part shall be re-fabricated.
3
When needed to extend the drain hose of
indoor unit, assembly the drain pipe as
shown on the drawing
Drain pipe
Vinyl tape(narrow)
Adhesive
Flare nut Pipes
Torque
kgf . m
1.8~2.5
3.4~4.2
5.5~6.5
6.3~8.2
9.9~12.1
Open-end wrench
(fixed)
Flare nut
Connection
pipe
Indoor unit drain hose
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
Set the tubing cutting line upward.
Wrap the area which accommodates the
rear piping housing section with vinyl tape.
Cutting Line
Gas Pipe
Liquid Pipe
Good Case
* Tubing cutting line have to be upward.
Connection pipe
Vinyl tape (wide) Wrap with vinyl tape
Connecting cable
Vinyl tape(narrow)
3
Bundle the piping and drain hose together
by wrapping them with vinyl tape sufficient
enough to cover where they fit into the
rear piping housing section.
Wrap with vinyl tape
Pipe
Drain hose
Insulation material
Cutting Line
Bad Case
Indoor unit pipe
Pipe
Vinyl tape(wide)