Checking The Drainage And Forming The Pipings; Checking The Drainage - LG LAN091CNP, LAU091CNP, LAN121CNP Service Manual

Checking the drainage and forming the pipings

Checking the Drainage

To check the drainage.
1. Pour a glass of water on the evaporator.
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
Accumulated
drain water
Air
Water
Waving
leakage
Checking the drainage and forming the pipings
Tip of drain hose
dipped in water
Water
leakage
Ditch
(mm 2 )
Downward slope
Less than
50mm gap
Service Manual 27