6 Mounting preparations
13
6.2 Preparations for wall installation
9 Suction duct for second room connection on
ER-UP/G: Flexible aluminium duct AFR 75/
AFR 80
ER-UPD: Flexible aluminium duct AFR 75/
AFR 80
or steel folded spiral-seams duct DN75/DN80
ER-UPB: Steel folded spiral-seams duct
DN75/DN80
18 Main duct: Steel folded spiral-seams duct
19 Connection duct on
ER-UP/G: Flexible aluminium duct AFR 75/
AFR 80
ER-UPD: Steel folded spiral-seams duct
DN75/DN80
ER-UPB: Flexible aluminium duct AFR 75/
AFR 80,
permitted inside the shaft
21 Power cable
Installation information
• Observe approval:
and
Requirements in line with approval [
.
• Always use correct duct material for the hous-
ing.
• For fire protection systems, the gap remaining
between the connection duct and brickwork/wall
boards/wall/ceiling must be fully sealed with
non-flammable materials that are resistant to
deformation (e.g. concrete, cement mortar, fire
protection filler).
NOTICE Damage to unit, malfunctioning in the
event of corrosion damage from mortar.
Wrap ventilation ducts, connected to the unit,
with a suitable adhesive tape to protect against
corrosion inside the brickwork, e.g. using cold-
shrink tape.
Preparing the shaft
1. Produce opening in shaft or alternatively pro-
duce a wall facing. Ensure a suitable, flat sur-
face for the housing so that the fan insert can
be safely inserted in the housing later on.
2. For a second room connection, produce an
opening in the wall or shaft for the suction
duct. Note permissible housing installation po-
sitions.
3. Correctly attach main duct inside the shaft.
4. For fire protection systems, use ceiling com-
pound. To do this, encase the ceiling and pour
in the material from above.
5. Connect connection duct, suitable for the
housing, to the main duct and seal for ventila-
tion.