Cleaning, maintenance

Cleaning intervals are to be determined by the operating company. Cleaning frequency depends on ambient conditions and anticipated impairments.

Before cleaning, switch off mains fuse, secure against being accidentally switched back on and position a warning sign. If required, the unit is cleaned with a dry cloth.

EZR, DZR fans are maintenance-free. Despite this, check the unit from time to time for bearing noise, damage and disproportionate vibration. If necessary, clean the fan as described above.

Never use water or a high-pressure cleaner to clean the interior.