LG A3UW186FA3 Installation Manual page 16

Flaring Work and Connection of Piping
Indoor unit installation
1. Hook the indoor unit onto the upper portion of
the installation plate.(Engage the two hooks
of the rear top of the indoor unit with the
upper edge of the installation plate.) Ensure
that the hooks are properly seated on the
installation plate by moving it left and right.
Press the lower left and right sides of the unit
against the installation plate until the hooks
engage into their slots(clicking sound).
Connecting the pipings to the indoor
unit and drain hose to 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
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
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 is no gap.
2. Wrap the area which accommodates the rear
piping housing section with vinyl tape.
16 Multi Air Conditioner
Torque
kgf . m
inch
1/4 1.8~2.5
3/8 3.4~4.2
1/2 5.5~6.6
5/8 6.3~8.2
3/4 9.9~12.1
Indoor unit tubing
Torque wrench
Indoor unit tubing
Drain pipe
Adhesive
Plastic bands Insulation material
Connection
pipe
Vinyl tape
Wrap with vinyl tape
(wide)
Connecting cable
Vinyl tape(narrow)
Connecting
cable
Drain hose
Flare nut Pipings
Spanner (fixed)
Flare nut
Connection pipe
Indoor unit drain hose
Vinyl tape(narrow)
Indoor
unit pipe
Pipe