For non racked Storage Fusion systems, you will need to attach air ducts onto 9155-S01 and 9155-S02 switches. These videos are step by step procedures to install the air duct into the 9155-S01 (High Speed switch).
The first video describes the installation for 9155-S01 in Rack Unit 20 (RU 20).
This similar procedure is also used to install the air duct into 9155-S01 (Management switch).
![](https://s2.save4k.ru/pic/gQCXF3Gq1JI/maxresdefault.jpg)