Indoor Unit Drain Piping; Drain Piping; Drain Test - LG UV42 Manuel D'installation

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
connecting 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.
- Be sure to execute heat insulation on the
Drain hose
Bracket

Drain test

Use the following procedure to test the drain
pump operation:
Downward slope
- Set the air direction louvers up-and-down to
- Pour a glass of water on the evaporator
- Ensure the water flows through the drain
THE INDOOR UNIT INSTALLATION
Do not raise
Water
leakage
Tip of drain hose
dipped in water
Water
leakage
Ditch
drain piping.
Heat insulation material: Polyethylene
foam with thickness more than 8 mm.
the position(horizontally) by hand.
using a kettle.
hose of the indoor unit without any leakage
and goes out the drain exit.
11
Accumulated
drain water
Air
Water
Waving
leakage
Less than
50mm gap