Connecting The Piping - LG MULTI V ARNU07GTUA4 Engineering Product Data Book

Indoor unit
10. Installation

10.4 Connecting the Piping

Preparing the indoor unit's piping and drain hose for
installation through the wall.
1. Route the indoor tubing and the drain hose in
the direction of rear left or right
Drain hose
2. Tape the tubing, drain hose and the connecting
cable. Be sure that the drain hose is located at
the lowest side of the bundle. Locating at the
upper side can cause drain pan to overflow
inside the unit.
Connecting
cable
Drain hose
CAUTION: 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.
*Foamed polyethylene or equivalent is
recommended.
Loop
Gas side piping
Liquid side piping
3. Connecting the pipings to the in door unit and
drain hose to drain pipe
o Align the center of the pipings and sufficiently
tighten the flare nut by hand.
Indoor unit tubing
o Tighten the flare nut with a wrench.
Torque wrench
Indoor unit tubing
o When extending the drain hose at the indoor
unit, install the drain pipe.
Drain pipe
Vinyl tape(narrow)
Adhesive
4. Wrap the insulation material around the con-
necting portion.
o Overlap the connecting pipe insulation material
and the indoor unit pipe insulation material. Bind
them together with vinyl tape so that there is no
gap.
Plastic bands Insulation material
ARTCOOL (Gallery)
Flare nut Pipings
Spanner (fixed)
Flare nut
Connection pipe
Indoor unit drain hose
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