English
EN-16/32
7.3. Carrying out Installation
1.
The fan or base frame must be fixed without stressing to the supporting
structure.
2.
AVM to be regularly placed around centre of gravity and definitely fixed. Check
whether the AVM is evenly under load.
No forces or vibrations may be transferred from other plant parts to
the fan (flexible connection).
The flexible connections (ATEX) at intake and/or discharge are
installed well aligned and freely moving.
The AVM are freely moving and under even load!
The impeller is turning idly and does not touch at intake cone!
The stability against collapse of the fan has been checked.
Conveying humid air outside installation:
Is a condense water drain fitted to the lowest point of the casing
7.4. Checking the Gap Dimension on the Fan
Table 7-1: Gap width RER
Table 7-2: Gap width RZR
Check gap between impeller and inlet cone and between shaft and drilling
in the cover disk (RER) against chart values below!
For ATEX fans the rule is applied that at critical spots where sparks can be
ignited by friction, certain gaps have to be respected.
With the RZR and RER fans this critical spots are between intake cone and
rotating impeller and if existing at the shaft passage at the casing.
