08/09 - 2 Construction subject to change. Version: 20.11.2009 No return possible!

Weather Protection Grille ALAS-P Description The surrounding air grille/multi-leaf damper combination type ALAS-P is used in intake or exhaust openings of ventilation installations. It not only provides protection by preventing rain, leaves or birds from entering, but also allows the amount of airflow to be regulated or the intake or exhaust opening to be closed. The mounting frame is delivered loose for easy and quick mounting. Ordering information When ordering, please specify the drive side right or left (seen from outside). Construction Mounting frame (-ER) - Primed angular steel Bearing...

Weather Protection Grille ALAS-P Models and dimensions Dimensions ALAS-P Available sizes All combined lengths and heights are possible. Assembly part Construction subject to change.

Technical Data Pressure loss and noise level Wall anchor arrangement Height (mm): H < 1005 2 wall anchors per side H > 1005 3 wall anchors per side Width (mm): B < 800 no wall anchors 800 < B < 1000 <=:> 2 wall anchors per side B > 1000 3 wall anchors per side If the mounting frame is shipped beforehand, it will be delivered unperforated. Legend Apt (Pa) = Pressure loss Lwa [dB(A)] = A-weighted sound power level LWA1 [dB(A)] = A-weighted sound power level, relative to 1 m2 vstirn (m/s) = Intake velocity, blower stream velocity, out flow velocity, relative to Astirn Astirn (m2) = Front face area,...