3. Fasten the upper rail and top corners of the window filler frames to the window
frame with screws. Fasten the bottom corners of the window filler to the window-
sill.
STEP 5: SECURING THE WINDOW
•
To keep the window from being unintentionally opened and risk damaging the
unit or injuring passersby, use one type C screw to fasten the security bracket to
the window. If your window frame is plastic (PVC), fasten the bracket to the side
of the window frame (Detail 1)If your window is made of wood, fasten the bracket
into the closed upper window sash (Detail 2).
STEP 6: INSULATING FOAM SASH SEAL
•
Prevent warm or cold air from entering in between the partially opened window
and the closed upper window by placing the non-adhesive foam sash seal in be-
tween the window sash and the glass pane.
1
2
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