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REFRIGERANT PIPING CONNECTIONS
Indoor Unit Drain Hose
• Insert the drain hose >2 inches so it won't pull out of the field-sup-
plied drain pipe.
•
Avoid piping the drain hose as shown in the diagrams in the
figure below. These methods are incorrect and can cause leaks at
the indoor unit site.
Figure 57: Incorrect Slope Angles for the Drain Hose.
Indoor
Unit
Water
Leak
Less than
2 inch Gap
Between Bottom
of Drain Hose and
Ground
Indoor
Unit
Tip of Drain
Hose Pointing
Water
Up
Leak
Horizontal Drain Hose
>6-1/2 feet
40
Upward slope
to outdoor
Indoor
can cause indoor
Unit
leaks!
Water
Leak
Indoor
Unit
Water
Leak
Indoor
Unit
Water
Leak
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Figure 56: Inserting the Drain Hose >2 inches Into the Field-Supplied
Drain Pipe.
Insert the drain
hose >2 inches
so it won't be pulled
out of the field-
supplied drain pipe.
>2 inches
Exterior Wall
Accumulated
drain water
Air
Indoor
Unit
Kinks
Indoor
Tip of Drain Hose
Unit
In Container
Drain Hose and
Ground are Parallel
Indoor
Unit
Buried Pipe
Bundle Taped in
Downward
Direction
Interior Wall
Drain Hose
Vinyl Chloride
Drain Pipe
Tip of Drain Hose
In Water
Water
Leak
Ditch
Drain Hose
Installed in
Upward Direction
Drain Hose Inserted
<2 inches
Less than 2 inch Gap
Water
Leak
No rainwater trap
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