Approval provisions
Approval provision | ER-UP/G + ER 60/100/second room | ER-UPD + ER 60/100/second room | ER-UPB + ER 60/100/ | ER-UPB + ER second room | |
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Number of units per floor, residential unit or fire zone | Max. 3 fans or 3 connections | Max. 3 fans or 3 connections | Max. 3 fans or 3 connections | Max. 3 fans or 3 connections | |
Shaft wall | any board material | Min. 35 mm, any board material | Min. 35 mm, any board material | Min. 35 mm, any board material | |
Connection diameter | DN 75 or DN 80 mm | ||||
Connection ducts inside the shaft | E.g. AFR 80 flexible aluminium duct between main duct in shaft and ER unit, max. 2 m long (→ approval). | Steel folded spiral-seams duct between main duct in shaft and ER unit, max. 2 m long (→ approval) | Flexible aluminium duct AFR 80 or steel folded spiral-seams duct between main duct in shaft and ER unit, max. 2 m long (→ approval). | Flexible aluminium duct AFR 80 or steel folded spiral-seams duct between main duct in shaft and ER unit, max. 2 m long (→ approval). Steel folded spiral-seams duct between ER unit and second room connection. | |
Connection ducts outside the shaft | E.g. AFR 80 flexible aluminium duct between main duct in shaft and ER unit, max. 2 m long (→ approval). | Steel folded spiral-seams duct DN 75 or DN 80 between main duct in shaft and ER unit, max. 2 m long (→ approval). | |||
Duct elbows in the unit connection duct | Max. 90° bend, |
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Number of duct elbows permitted for wall installation
| Max. 2 x 90° | ||||
Number of duct elbows permitted for ceiling installation
| Max. 2 x 90° | ||||
Regulating equipment in the exhaust air duct | Not permitted |
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Wall/ceiling opening for DN 80 unit connection duct | Brickwork or concrete: 130 mm. Board materials (F90): Outer Ø of pipe | ||||
