20
produces a gap at the bottom of 10-20 mm
for a night ventilation facility which can be
securely locked in position.
The friction brake does not secure the sash's
position during strong winds or draughts.
When the window is wide open, the sash is
controlled by built-in friction in the top-gui-
ded ironmongery. The brake friction can be
adjusted by tightening or loosening the fric-
tion bolt in the hinge slider – make sure that
the friction is the same on both sides.
Function and operation | Top guided
Top guided
The window's top guided ironmongery is
mounted in the top sides of the sash/frame.
When the window is opened the lower part
of the sash is pushed forward, while the top
part of the sash moves down a little.
The window is operated by means of a hand-
le which is placed at the centre of the bot-
tom sash.
At the bottom there is an espagnolette
which engages with the receiver on the
frame when the sash is closed.
The receiver has two slots, the inner slot is
for closing the window, while the outer slot
The friction brake does not se-
cure the sash's position during
strong winds or draughts.
