Connecting To Duct System - Exhausto BESB Betriebsanleitung

3004348_2017_08_24.fm

1.5 Connecting to duct system:

Flexible The ventilator must always be connected to the duct system with FLF, to avoid any
connections chance of vibrations being transmitted. The spigots on the ventilator are standard-sized
and fitted with rubber seals.
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 FLF connections must always be fitted as shown.
Sound pressure The ventilator is fitted with sound dampers suited to the requirements of the operating
level area. The sound pressure for all types of BESB is less than 70 dB (A). The duct system
is insulated against sound propagation, heat loss, fire and condensation.
No Duct A protective net (accessory) with mesh size of 12 mm must be fitted if the ventilator is
not fitted to a duct. It should be noted that:
• such fittings result in a pressure drop in the system
• Air volume measurements cannot be measured correctly when there is no duct
fitted on the suction side
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GB - BESB – Product information
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