LG Air Conditioner Installation Manual page 16

Installation
3. Tape the tubing pipe, drain hose and the connection cable. Be sure that the drain hose is located
at the lowest side of the bundle. Locating at the upper side can cause overflow from the drain pan
through the inside of the unit.
If the drain hose is routed inside the room insulate the hose with an insulation material* so that
dripping from sweating (condensation) will not damage furniture or floors.
Be sure to install in the sequence of Connecting cable (Conduit), Drain hose and Connecting
pipe as the picture below describes.
* Foamed polyethylene or equivalent is recommended.
<Left side piping>
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
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
3. When needed to extend the drain hose of
indoor unit, assemble the drain pipe as
shown on the drawing
16 Air Conditioner
Tape
Connecting
cable(conduit
Drain hose
Connecting pipe
Torque
kgf . m lbf . ft
1.8~2.5 13~18
3.4~4.2 24.6~30.4
5.5~6.6 39.8~47.7
6.3~8.2 45.6~59.3
<Right side piping>
Tape
Connecting
cable(conduit)
Drain hose
Indoor unit tubing Flare nut
Open-end wrench (fixed)
Wrench
Indoor unit tubing
Drain pipe
Indoor unit drain hose
Vinyl tape(narrow)
Adhesive
Connecting pipe
Pipes
Flare nut
Connection pipe