Atlantic EXPLORER Installations- Und Bedienungsanleitung Seite 92

Presentation Installation Use Maintenance Warranty
Ext./Ext. duct configuration
OR
The choice of 'Less than 4 m' ducting must comply with the following conditions:
- the air intake and exhaust must be wall-mounted only
- The total length of the sheathing must be less than 4 m
For any other type of installation, the choice must be for 'Over 4 m' sheathing.