Topvex Series
BFT - Filter replacement instructions
Systemair Inc.
2
1
Release the lter frame by pulling the lter support
bars.
2
Tilt the support bars to the back.
3
It is now possible to fold the lter and frame
backwards. This is especially important if there
is lack of space in front of the unit and the sliding
door kit is used.
The lter can now be taken out of the unit.
5
Insert the new lter and fasten it against the inlet seal with the lter support bars.
Make sure the lter is tted tight all around the frame.
1.2 Topvex FR Changing Supply/Extract air lter
3
Changing pre-lter (only when pre-heater is
installed)