Preparations for wall installation

9	Suction duct for second room connection on ER-UPD EC: Flexible aluminium duct AFR 75/AFR 80 or steel folded spiral-seams duct DN75/DN80
18	Main duct: Steel folded spiral-seams duct
19	Connection duct on ER-UPD EC: Steel folded spiral-seams duct DN75/DN80 ER-UPB EC: Flexible aluminium duct AFR 75/AFR 80, permitted inside the fireproof shaft
20	Power cable

Installation instructions

Observe approval: Certificates of approval and Requirements in line with approval.
Always use correct duct material for the housing.
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.

Produce opening in shaft or alternatively produce a wall facing. Ensure a suitable, flat surface for the housing so that the fan insert can be safely inserted in the housing later on.
For a second room connection, produce an opening in the wall or shaft for the suction duct. Note permissible housing installation positions.
Correctly attach main ventilation duct inside the shaft.
For fire protection systems, use ceiling compound. To do this, encase the ceiling and pour in the material from above.
Connect connection duct, suitable for the housing, to the main duct and seal for ventilation.
Cut connection duct to length, note a maximum duct length of 2 m.
NOTE! Cut connection duct to a length which allows it to be fitted on the discharge connection and also sealed for ventilation at the unit end.
Lay suction duct and seal gap remaining correctly as described in previous installtion instructions.
Lay power cable in shaft and allow to protrude by around 30 cm above the shaft opening.
In the ceiling area, fit a spigot made from shaft material F90 around the shaft.
NOTE! The spigot compensates for the length of the shaft walls in the event of a fire.
Lay power cable: Provide unit with electrical connection.