LG A3UQ24GFAB Installation Manual page 14

FLARING WORK AND CONNECTION OF PIPING
14
Indoor unit installation
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
- Align the center of the pipings and sufficient-
ly tighten the flare nut by hand.
- 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
- When extending the drain hose at the indoor
unit, install the drain pipe.
Wrap the insulation material around the con-
necting portion.
- Overlap the connection pipe insulation mate-
rial and the indoor unit pipe insulation materi-
al. Bind them together with vinyl tape so that
there is no gap.
- Wrap the area which accommodates the rear
piping housing section with vinyl tape.
Indoor unit tubing
Torque
N . m
16±2
38±4
Torque wrench
55±6
Indoor unit tubing
75±7
110±10
Drain pipe
Connection
pipe
Vinyl tape
(wide)
Flare nut
Spanner (fixed)
Flare nut
Indoor unit drain hose
Vinyl tape(narrow)
Adhesive
Plastic bands
Insulation material
Wrap with vinyl tape
Connecting cable
Vinyl tape(narrow)
Connecting
Drain hose
Pipings
Connection pipe
Indoor
unit pipe
Pipe