WZA
School ventilation
Assembly, installation and operating instructions
33
Remove the screws from the fan service panel.
Pull the fan service panel forwards and remove it.
Pull the fan drawer forwards and clean the impeller.
Clean all surfaces of the functional unit that come into contact with air.
Once you have completed all cleaning work, start to reassemble all parts in
reverse order. First insert the fan service panel at the bottom, press into
place, and fix with screws.
Caution: Restore all loosened earthing connections when reassembling the plinth and service panel!
