8.4 Commissioning
WARNING
Risk from electrical voltage!
› Electrical connection only by trained and instructed qualied 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.
" Briey 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, throughow direction
8.4.3 Switching on
" Switch the fan on.
" Check awless function (smooth running)
" Check tight tting of the safety components and protective grid.
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