
TABLE OF CONTENTS
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Overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�4
Description � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�4
General characteristics � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�4
European Standards applied � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�4
Certications and approvals � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�4
Components � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�4
Available dimensions � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�5
Fixing aps � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�6
Fire dampers pairing � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�6
Performances � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�9
Fire resistance classication according to EN 13501-3-2009 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�9
Mechanism type � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�10
Technical data � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�13
Dimension � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�13
Weights � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�14
Installation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�15
Intended use � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�15
Not allowed uses � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�15
Blade rotation axis positioning � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�15
Positioning brackets before xing � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�15
Installation of exible connectors in order to balance out the ventilation ducts expansion � � � � � � � � � � � � � � � p�15
Transfer Application (application not connected to air ducts on one or both sides) � � � � � � � � � � � � � � � � � � p�16
Minimum distances � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�18
Construction supports characteristics � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�20
EI 120 S Installation within vertical rigid wall � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�22
EI 120 S Installation in vertical rigid wall - Special cases � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�23
EI 120 S Installation within vertical light wall (plasterboard) � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�24
EI 120 S Installation within vertical light wall (plasterboard) - Special cases � � � � � � � � � � � � � � � � � � � � � � p�26
EI 90 S Installation within vertical light wall (gypsum blocks wall) � � � � � � � � � � � � � � � � � � � � � � � � � � p�27
EI 120 S Installation within vertical light wall (gypsum blocks wall) � � � � � � � � � � � � � � � � � � � � � � � � � � p�28
EI 120 S Installation within vertical light wall (gypsum blocks wall)- Special cases � � � � � � � � � � � � � � � � � � � p�29
Installation within vertical light wall (Shaft wall) � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�30
Electrical connections � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�31
Electrical wiring � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�31
Electrical specications � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�33
Maintenance and inspections � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�34
Periodic inspection and cleaning � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�34
Repair � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�34
Disposal � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�34
Selection � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�35
Air ow rates in relation to the diameter � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�35
Air ow rates as a function of the pressure drop � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�36
Air ow rates as a function of generated sound levels � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�39
Pressure drop and sound level graph for base 400 mm � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�42
Correction for base dierent than 400 mm � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�43
Correction used to estimate the octave band spectrum (Values to be added to the noise levels in dB(A)) � � � � � � � � p�43
Accessories and spare parts � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�44
How to order � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�48
Motorized re dampers � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�48
Fire damper with manual control � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�48
Electric motor driven actuators � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�49
Specication Text � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�50
Series WKS25 compact rectangular re damper � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�50
Revision Index � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � p�51
WKS25
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