Indoor Unit Drain Piping; Drain Piping; Drain Test - LG AVNQ36GM1A0 Installation Manual

Indoor unit drain piping

- Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
- During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
- Remove the rubber stopple before connect-
ing drain hose.
- Hook on the bracket after connecting the
drain hose as below.

Drain piping

- The drain hose should point downward for
easy drain flow.
- Do not make drain piping like the following.
Water
leakage
Water
leakage
- Be sure to execute heat insulation on the
Drain hose Drain hose Drain hose
drain piping.
Heat insulation material: Polyethylene foam
with thickness more than 8 mm.
Bracket

Drain test

Use the following procedure to test the drain
pump operation:
Downward
slope
- Set the air direction louvers up-and-down to
the position(horizontally) by hand.
- Pour a glass of water on the evaporator
using a kettle.
- Ensure the water flows through the drain
hose of the indoor unit without any leakage
and goes out the drain exit.
THE INDOOR UNIT INSTALLATION
Do not raise
Water
leakage
Tip of drain
hose dipped
in water
Ditch
11
Accumulated
drain water
Air
Waving
Less than
50 mm gap