User Manual-VN1
Version C July 2020
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NEVER connect 24 V DC drives to the 230 V AC main voltages. This could create life threatening injuries.
Do not reach into the window rabbet or the operating element (chain or spindle) during installation and
operation! Ensure that, based on the installation position and the opening movement of the casement,
persons cannot be trapped between the driven part of the window and surrounding fixed components (e.g.
wall).
Mounting material
The required mounting material must be modified to fit the drive and occurring load and, if necessary,
supplemented.
Before installing the drive, check whether the casement is in good mechanical condition, the weight is
balanced and whether it opens and closes easily!
Danger spots by crush and shear points
Side-hung
Bottom-hung
Roof windows
Louver windows
Crush and shear points
To avoid injuries, crushing and shear points between casement and frame must be secured against
entrapment up to an installation height of 2.5 meters above the floor with appropriate measures. This can be
achieved by using contact-based or contactless protective devices against entrapment. This stops the
motion through contact by a person, the motion through contact or through interruption by a person. At a
force higher than 150N at the main closing edge, the motion must stop within 20mm. A warning symbol at
the opening element must indicate this clearly.
Unintentional or independent opening or falling
Casements need to be hinged/secured in such a way that in the event one of the mounting elements fails, it
will not crash down/move in an uncontrolled manner. Use double suspensions, safety scissors, and
casement stays to ensure it will not slam down.
