3004349_2017_08_03.fm
GB - BESF – Product information
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Ducts
To achieve maximum performance with minimal energy consumption the ventilator
should be connected to the duct system with the specified lengths of duct before and
after the ventilator. The ventilator must always be connected to the duct system using
FLF to avoid any chance of vibrations being transmitted. The spigots on the ventilator
and the OGSR are fitted with rubber seals.
Sound
The ventilator is fitted with mufflers in accordance with the requirements of the operating
area. The sound pressure for all types of BESF is less than 70 dB (A).
The duct system must be insulated against sound propagation, heat loss and
condensation.
Protective net
A protective net (accessory) with a mesh size of 12 mm must be fitted if the ventilator is
not fitted to a duct.
1.4 Connecting to duct system
BESF with fitted OGSR
BESF without OGSR
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Summary of Contents for BESF Series
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