Samsung DIGIMAX A6 Owner's Instructions Manual page 34

Care must be taken when installing the drain hose for the indoor unit to ensure that any
condensation water is correctly drained outside. When passing the drain hose through
the 65mm( 9 inch) hole drilled in the wall, check that none of the following situations occur.
2
16
To install the drain hose, proceed as follows.
➢
The hose will be fixed permanently into position once the
whole installation has been tested for gas leaks; refer to
page 43 for further details.