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28
MAINTENANCE AND SERVICING
Fan maintenance means periodic cleaning of the surfaces from dust and dirt.
Switch the fan off while doing any maintenance operations!
Use a dry soft brush or compressed air to remove dust.
The impeller blades require thorough cleaning at least once in 6 months.
To clean the soiled fan internal parts perform a partial fan dismantling.
Wash the fan blades carefully with mild detergent and water solution avoiding
liquid penetration on the electric motor.
VKH
Figure 27
QF
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
1
3
2
4
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