Installing the device
33
¾
Use the following dimensional overview for
orientation in the case of the air extraction device.
96
390
460
425
520
240
160
240
130
130
780 (BKH 120)
480 (BKH 90)
750 (BKH 120)
450 (BKH 90)
2
1
A larger illustration can be found on page 13.
¾
Use the following dimensional overview for
orientation in the case of the recirculated air
device.
780 (BKH 120)
480 (BKH 90)
750 (BKH 120)
450 (BKH 90)
A larger illustration can be found on page 10.
¾
Mark the position of the holes for the lower
fastening points using a pencil and a spirit level.
¾
Mark the horizontal axis of the holes for the
installation rails using a pencil and a spirit level.
¾
Make sure that a distance of 450 mm is
maintained between the inner ends of the
installation rails.
Each installation rail is secured with two screws.
The installation rails have two round and four
elongated holes.
¾
The location of the holes may be selected for
optimal mounting depending on the structural
conditions.
¾
Select the most favourable hole position
according to the following criteria:
•
Do not drill into cavities.
•
Do not drill into electrical cables.
•
Do not drill into gas pipes.
•
Do not drill into water pipes.
¾
Determine two holes for securing per installation
rail.
¾
Mark the holes.
