Lg Electronics LM50 2004-E1 ユーザーズマニュアル

❑ Drain pipe gradient and support 

1) - The drain pipe must be fitted at a gradient of at least 1/100.

- The drain pipe should be as short as possible and free from airlocks.

2) Suspension bolts should be used to support long stretches of drain pipe in order to ensure that a gradient

of 1/100 is maintained.(PVC pipe should not be bent)  

3) The length of pipe laid horizontally should be kept a minimum.

❑ Drain trap

Fit any indoor unit whose drain pipe connection is subjected to negative pressure, with a drain trap. 

1) Rig the drain trap as shown in the drawing below

2) Provide one trap per unit.  A single trap for converging units will prove ineffective.  

3) Rig the trap to allow for future changing.

Class

Nominal diameter

Spacing

Rigid PVC pipe

25~40mm

1.0m or less

Indoor unit

Gradient of at least 1 / 100

(1cm/ 1m)

Indoor unit

H: 50mm or more

H

H

Indoor unit

Plug

Indoor unit

Plug