Specification Guide

ManualsBrandsLG ManualsAir Conditioners30,000 BTU Multi Zone Smart Inverter Heat Pump Outdoor Unit with LGRED° Heat Technology, -13°F Extreme Low Ambient Heating, Inverter Variable Speed Compressor, Integrated Base Pan Heater, Gold Fin Anti-Corrosion, Hot Start, Auto Restart, Auto Operation, S

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INSTALLATION & LAYOUT BEST PRACTICES

Condensate Drain Piping

Indoor Units

All indoor units generate water during cooling operation, therefore, how to properly handle this condensation must be considered. Some

indoor units include factory-installed drain pumps; others apply the gravity drain method.

Condensate Drain Piping

Indoor Unit Drain Type Drain Pipe Diameter (OD / ID, in.)

Drain Amount

(gal. / min. at 0.033 ft. height)

$UW&RRO:DOO0RXQWHG Gravity 13/16 / 5/8 —

Art Cool Gallery Gravity 13/16 / 5/8 —

6WDQGDUG:DOO0RXQWHG Gravity 13/16 / 5/8 —

Ceiling-Concealed Ducted

(Low Static and High Static)

27-1/2 in. Lift Drain Pump,

Factory Installed

Ø1-1/4 / Ø1 0.105

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27-1/2 in. (9,12MBh) or

31-1/2 in (18MBh) Lift Drain Pump,

Factory Installed

Ø1-1/4 / Ø1 0.105

Vertical-Horizontal Air Handling Unit Gravity Ø3/4 / — —

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Flexible hose

Drain pump

PVC elbow

PVC

1/50~1/100 slope

≤Max. 27-1/2 in. (Ducted and

9/12MBh Cassette)

≤Max. 31-1/2 in. (18MBh Cassette)

≤11-13/16 in.

Metal clamp

Drain pan

Insulation

Flexible drain hose

Insulation

)LJXUHDiagram of an Indoor Unit with a Gravity Drain. )LJXUHDiagram of an Indoor Unit with a Drain Pump.

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204 | DESIGN & PRACTICES

Multi F and Multi F MAX Indoor Unit Engineering Manual

MULTI

MAX

MULTI