8.4
Commissioning
WARNING
Risk from electrical voltage!
›
Electrical connection only by trained and instructed qualified personnel!
8.4.1 Check air gap
"
AW-EX/AXC-EX/AXCBF-EX: Check the minimum air gap between blade tip and housing once again (see Table 11).
"
DVEX: Check the distance between rotor and nozzle, it must be between 4 mm and 8 mm.
"
Only put the fan into operation if the minimum air gap matches your fan’s value.
8.4.2 Check direction of rotation
WARNING
Risk from bursting parts
›
Wear goggles when checking the direction of rotation of the rotor.
"
Briefly switch the fan on and off.
"
Check the direction of rotation / direction of conveying. The direction of rotation looking at the rotor always
applies.
"
AW-EX: In fans with intake on both sides, the direction of rotation applies looking at the side opposite the connec-
tion wire.
"
RVK-EX see Fig. 10
"
If the direction is wrong, exchange two phases in order to set the direction of rotation.
•
Fig. 10: RVK-EX fan, throughflow direction
8.4.3 Switching on
"
Switch the fan on.
"
Check flawless function (smooth running)
"
Check tight fitting of the safety components and protective grid.
Commissioning
62
