Eberpächer A.D.T. 750 roof fan 12 Volts

Installation materials are not included with the part.
Provide sufficient suction surface to prevent damage to the airflow of the equipment.
This fan can only extract air.

The equipment may only be installed in the position indicated in the mounting instructions.

These instructions can be found here

Or:

https://www.eberspaecher-climate.com/fileadmin/data/kalori/userguides/8300401002810/8300401002810_EN.pdf