LG ARNU 053 SBL4 - General Drain Piping Information

GUIDELINES | 57
Application Guidelines
Due to our policy of continuous product innovation, some specications may change without notication.
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APPLICATION GUIDELINES
General Mounting / General Drain Piping Information
General Drain Piping Information
All wall-mounted indoor units generate water during cooling
operation, therefore, properly handling this condensation must be
considered. Wall-mounted indoor units apply the gravity drain meth-
od, but a field-supplied condensate pump can be installed (optional,
sold separately). Depending on the location of the indoor unit, con-
densation can be drained directly to the outside of the building, or a
common indoor unit drainage piping system can be installed.
Drain Hose
Wall-mounted indoor units have a built-in drain hose. If necessary,
the drain hose can be extended.
Drain Piping
• Drain piping must have down slope (1/50 to 1/100).
• Any holes through the ceilings, walls, etc., must be large enough to
accommodate the drain piping and insulation.
• To prevent reversal flow, do not provide up and down slope.
• Do not exert extra force on the drain port on the indoor unit during
drain piping connection.
Indoor Unit Drain Type
Drain Pipe Diameter
(ID, in.)
SE Frame Art Cool Wall-Mounted
Gravity
Ø5/8
S8 Frame Art Cool Wall-Mounted
SB Frame Standard Wall-Mounted
Ø1
SC Frame Standard Wall-Mounted
Table 34: Indoor Unit Drain Piping Specications.
Drain pan
Insulation
Drain hose
Insulation
Figure 36: Installation Plates.
Figure 37: Diagram of an Indoor Unit with a Gravity Drain.
26-5/8
12-7/8
16-5/8
10-7/16
2-13/16
Unit: inches
SB Frame Standard Wall-Mounted Indoor Unit
2-13/16
2-3/4
2-1/4
Right rear
piping
Left rear
piping
Installation Plate
Measuring Tape
Measuring Tape
Hanger
Place a level on raised tab
Unit Outline
8-3/16
4-3/16
18-1/8 22-1/2
2-13/16
Unit: inches
SC Frame Standard Wall-Mounted Indoor Unit
S8 Frame Art Cool Wall-Mounted Indoor Unit
Left rear piping Right rear piping
2-3/4 inch
5-1/4 inch
2-3/4 inch
3-15/16 inch
2-3/4 inch
4-5/16 inch
2-3/4 inch
4-5/16 inch
2-9/16 inch
3-3/8 inch
Left rear piping Right rear piping
SE Frame Art Cool Wall-Mounted Indoor Unit
Figure 38: Drain Piping Slope.
Drain hose
Connecting