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Minimum Air Gap In Compliance With The Material Combinations - Helios AMD-Serie Montage- Und Betriebsvorschrift

Axial-mitteldruckventilatoren
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Installation and Operating Instructions
m
CAUTION
1
A
B
ATTENTION
C
D
E
ATTENTION
F
G
AMD – Medium-pressure axial fans
3.5

Minimum air gap in compliance with the material combinations

m CAUTION
2
Move impeller by hand to check unhindered running!
Before installation, check the minimum air gap between impeller tip and casing according to the following table:
Type
Minimum air gap (in mm)
AMD.. 315
AMD.. 355
AMD.. 400
AMD.. 450
AMD.. 500
AMD.. 560
AMD.. 630
AMD.. 710
AMD.. 800
AMD.. 900
AMD.. 1000
AMD.. 1120
If the observed values do not correspond to the specified
dimensions, the fan must not be installed or operated.
For questions, please contact Helios customer services "TGA".
Own repair attempts are strictly prohibited!
Helios Customer Services Support
support@heliosventilatoren.de
Telephone: +49 (0)7720 606-742
3.6
Maximum permissible vibration limits according to ISO 14694 / ISO 10816-3
Commissioning
Permanent inst.
Flexible inst.
[mm/s]
[mm/s]
4.5
– Installation of a vibration monitor
The vibration monitor (on-site) must be installed on the casing of the fan and it must not lie in the turning range zone
of the impeller.
The air gap (see Fig.13) must not be affected by the installation of the vibration monitor!
– Selection of vibration dampers
In order to optimally dampen the vibrations created by the rotating components in the fan, the correct selection of
the vibration damper is crucial. The design is based on the determined total mass of the fan incl. mounting parts to
be dampened. In this respect, the individual net weights of the components must be added together.
Example:
AMD 900/4 30 kW as Z unit
Determination of the mass to be dampened
AMD 900/4
410 kg
AMD 900/4
410 kg
MP-Z 900
68 kg
VR 900
34 kg
MK 900
18 kg
Total weight
940 kg
3
2.5
2.5
2.5
2.5
2.5
3.0
3.0
3.5
4.0
4.5
5.0
5.0
Max. permissible vibration limits for fan power < 75 kW
Alarm
Permanent inst.
[mm/s]
6.3
7.1
9
4
Deactivation
Flexible inst.
Permanent inst.
[mm/s]
[mm/s]
11.8
9.0
EN
5
Fig.13
Luftspalt
Air gap
Flexible inst.
[mm/s]
12.5

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