LG Multi V CRUN Serie Montageanleitung Seite 56

Appendix
Drain Pipe Work
1. 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.
Indoor unit
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)
Spacing of supports for horizontal piping
Class
Rigid PVC pipe
3) The length of pipe laid horizontally should be kept a minimum.
2. 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.
Indoor unit
Plug
56 Outdoor Unit
Nominal diameter
25~40mm
Indoor unit
Gradient of at least 1 / 100
(1cm/ 1m)
Spacing
1.0m or less
H
H: 50mm or more
H
Indoor unit
Plug