Atag WO61 BM Serie Mode D'emploi Et Instructions D'installation page 77

assembly
buiding in
Extraction mode only: exhaust outlet selection
The hood is equipped with two exhaust outlets, one facing
upwards (Upper exhaust outlet) and the other facing
backwards (Rear exhaust outlet). Both outlets are closed off
with pre-cut panels which, once removed, cannot be
replaced. For this reason you should only choose which
outlet to use once you are completely certain.
upper exhaust outlet
Press firmly against the pre-cut part closing off the exhaust
outlet and remove it completely.
rear exhaust outlet
Remove the plastic pre-cut part. Use a cutter to score along
the pre-cut part at the centre, beginning at the top and
working downwards.
Use a pair of pliers to grip the plastic tabs on the parts which
need to be removed, then push and pull firmly a few times
until you have completely removed the pre-cut parts. Use a
cutter to eliminate any rough ridges.
GB 15