Obligations of the installer and operating company

The fan may only be operated at permissible ambient and airstream temperatures of -20 to +50 °C and only if fully mounted.

The fan must be regularly inspected and maintained by a qualified person, as described in these instructions.

Cleaning and maintenance intervals should be determined by the operating company in accordance with EN 60079-17 – frequency depends on ambient conditions and anticipated limitations. Shorten the maintenance intervals in the event of dust or a corrosive atmosphere.

Additional safety regulations should be observed during installation and operation, e.g. in accordance with the following directives and regulations: