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Figure 9
www.blaubergventilatoren.de
11
Box-D
TECHNICAL MAINTENANCE
The technical maintenance of the fan includes periodic cleaning of the fan surfaces from
dust and dirt.
The filter must be replaced on a need-to-do basis, but at least every 6 months.
The impeller cleaning and filter replacement steps are given in Fig. 9.
The impeller blades must be thoroughly cleaned from dust and dirt every 6 months.
Take the necessary measures to prevent penetration of smoke, carbon monoxide and other
combustion products into the spaces through open smoke ducts or other fire-safety
infrastructure as well as prevent back flow of gases from any appliances which produce gas
flame or naked flame.
The transported air must not contain dust and other solids as well as sticky substances and
fibrous materials.
