Permitted exhaust air systems
Exhaust air system | ER-UPD EC | ER-UPB EC |
|---|---|---|
Ceiling barrier system ** | no | no |
System with fireproof shaft | yes** | yes*** |
Air extraction system without fire protection ** | no | no |
** ER-UPD EC can be used outside the fireproof shaft, connection line made of steel folded spiral-seams duct, second room connection made of flexible aluminium duct.
*** ER-UPB EC can be used inside the fireproof shaft, connection line made of flexible aluminium duct, second room connection made of folded steel folded spiral-seams duct.