2
formance data, max. temperature, work-
ing period, category/class according to
relevant standards and regulations.
A motor plate with relevant data is on
the side of the fan casing.
Documentation and instructions from
the motor manufacturer are included
with the fan. Save them for when the fan
is serviced.
3.2 Weights
3.3 Transport
The jet fans are delivered on pallets to al-
low for forklift handling. Avoid making
deformations of the fan casings.
4. Storage
The jet fans are unsuited for outdoor
storage.
If the fans are stored indoors under well-
ventilated conditions with no risk of con-
densation, the storage period is
6 months.
The storage space must not be exposed to
vibrations likely to damage the motor
bearings. If the storage period exceeds
3 months, it is recommended to turn the
rotor regularly.
Check the fans for damages and corro-
sion prior to installation. Before start of
operation, make sure there is no conden-
sate in the motor.
5. Installation
5.1 Before installation
Make sure that the rotor rotates freely
with equal distance between blade tips
and fan casing throughout the circum-
ference.
AUO/ARO:
Remove the transport
brackets on the underside of the fan
housing after installation. The brackets
have yellow labels. Insert the screws
from the brackets again, as these secure
the casing.
5.2 Installation
Install the jet fans so that there is at least
0.5 m to the nearest obstruction on the in-
let side and at least 2 m on the outlet side
for unidirectional fans. For reversible
fans there must be 2 m on either side of
the fans.
Lower the fan correspondingly for ob-
structions higher than the installation
height (H).
Fasten the fan in each of the suspension
points to the ceiling or the lowering
brackets. It is recommended to install vi-
bration dampers as shown in figure 3b or
3c. Please note that these are optional
and not part of standard deliveries.
Arrows on the fans indicate the airflow
direction and rotation.
Within a smoke reservoir the jet fans
must be fastened to non-flammable ma-
terials only and must meet current na-
tional requirements. In general, the jet
fans must be mounted so that there is no
risk of them falling down in case of fire.
If unapproved expansion bolts for high
temperature are used, these must be
made from steel, must at least be size M8
and must be mounted twice as deep as
recommended – at least 60 mm deep.
The static load must not exceed a pull of
more than 500 N.
Expansion bolts certified for fire condi-
tions must be mounted and loaded ac-
cording to the approval.
The jet fans must be fixed to a horizontal
plane with a natural frequency at least
20% from the fan speed.
After final installation, check that the
rotors rotate freely in the fan casings.
It is essential for the performance and
sound level that the airflow is unimped-
ed and free from eddies.
Weights [kg]
AUO/ARO size 290
80
AUO/ARO size 380
110
AUO/ARO size 500
160
ARP size 340
100
AUZ size 340
78
AUT/ART size 400
63
AZT 450
70
Table 2.
Unit weights
Figure 2.
Principle installation
H
A
B
C
AUO/ARO 290
320 506 560 4 x ø14 M12
AUO/ARO 380
420 506 720 4 x ø14 M12
AUO/ARO 500
540 600 830 4 x ø14 M12
ARP 340
422 283 520 4 x ø14 M12
AUZ 340
422 283 520 4 x ø14 M12
AUT/ART 400
423 779 470 4 x ø14 M12
AZT 450
540 540 260 4 x ø11 M10
Table 3.
Mounting specifications
Figure 3a.
Installation of jet fans
Item 01 Jet fan
Item 02 Expansion bolt
Item 03 Ceiling
01
02
03
B
A
C
H
500
500*
500
500*
* Minimum 500 mm
free for air intake
Detail
figure 3b
Detail
figure 3b
Use lowering brackets
in areas with high beams
Bottom jetfan = beam height
Figure 3b.
Example of ceiling installation
with vibration dampers
Figure 3c.
Example of ceiling installation
with vibration dampers for AZT
Vibration
dampers
Disc
Concrete
screw 10x130
Steel pipe
Steel pipe
Vibration
dampers
Disc
Concrete
screw 10x130
