COMPANY STATEMENT FREQUENCY CONVERTER AXC(F)

Translation to english 30.10.2012
Systemair GmbH, Seehöfer Str.45, D-97944 Windischbuch,Telefon [phone] / 92 72-0, Fax: -92
Company statement
subject: confirmation of suitability smoke extract fans running mode with
frequency converter
We confirm as follows. The fan range AXC (F) can be controlled by using
frequency converters. The minimum air speed must be guaranteed and should
be confirmed by Systemair before installation.
We recommend not to go down less then 20 Hz.
We expect that the installation is done according current technical standard (
shielded cables, all pole sinusfilter with earth connection ground/ground and
phase to phase.
ppa. Harald Rudelgass
Technical Director
Systemair GmbH