6.2.2 Assembly
WARNING
Danger from falling parts!
›
Check the underground (ceiling/wall) for strength before assembly,
›
when selecting the fitting material, pay attention to the weight, vibration tendency and shearing
forces (weight, see name plate).
"
Fit the fan on a firm base with suitable fitting material at all the fitting points.
"
Secure the screw connections with Loctite.
"
Fit the air channels and the accessories.
"
Mounting AXC-EX and AXCBF-EX in horizontal and vertical ( impeller up) position possible!
6.2.3 AW-EX series: minimum air gap
Size
Minimum air gap in mm
Size
Minimum air gap in mm
355
3,50
550
5,50
420
4,20
650
6,45
Table 10: Minimum air gap of various construction sizes
NOTE on the condensation opening of the AW-EX series
Pay attention in installation:
-
In installation in a vertical motor shaft position, condensation cannot escape.
-
Installation and operation only admissible in a horizontal shaft position
NOTE for an optimised characteristic
To ensure achievement of the characteristic, it is necessary for a constant and twist-free flow to exist at
the inlet. In free intake, this is achieved by the addition of an admission nozzle or a channel line with a
length of no less than 2.5 x D. If this is not possible for construction reasons, a deflection piece with
baffles fitted in front of the fan must be optimised in its fluidics in such a way that a constant speed
distribution at the fan inlet is achieved.
On the pressure side, a channel or duct element with a length of no less than 2.5 x D is also to be
provided for achievement of the characteristic.
6.2.4 AXC-EX und AXCBF-EX series: minimum air gap
Size
Minimum air gap in mm
Size
Minimum air gap in mm
250
2,5
710
5,0
315
2,5
800
5,0
355/400
3,0
900/1000
7,0
450/500
3,5
1250
8,0
560
3,5
1400/1600
10,0
630
4,5
Table 11: Minimum air gap of various construction sizes
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