Checking The Drainage; Drain Piping; Wiring Connection - LG URNU48GVLA2.ENWALEU Manual Del Usuario

Checking the Drainage

1. Set the air direction louvers up-and-down to the
position(horizontally) by hand.
To check the drainage.
1. Pour a glass of water on the evaporator using a ket-
tle.
2. Ensure the water flows through the drain hose of the
indoor unit without any leakage and goes out the
drain exit.

Drain piping

1. The drain hose should point downward for easy
drain flow.
2. Do not make drain piping like the following.
Do not raise
Water
leakage
3. While merging numerous drain pipes, follow the procedure mentioned below.
Drain piping must have down-slope (1/50 to 1/100): be sure not to provide
up-and-down slope to prevent reversal flow.

Wiring Connection

Connect the wires to the terminals on the control board individually according to the outdoor unit
connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of
indoor unit respectively.
Terminal Block Indoor
1(L) 2(N) 3(A) 4(B)
INDOOR POWER INPUT
WARNING : Make sure that the screws of the terminal are free from looseness.
Accumulated
drain water
Air
Water
Waving
leakage
Down-slope : 1/50~1/100
Outdoor unit Indoor unit
SODU SODU IDU IDU INTERNET
Tip of drain hose
dipped in water
Water
leakage
Ditch
Central controller
Outdoor unit
DRY1 DRY2 GND
12V
Installation Manual 11
Installation
Downward slope
Less than
50mm gap