7 Recirculation silencer
The use of a recirculation silencer for noise reduction is
recommended especially for the cases where the TopVent
®
units are installed under level, hard ceilings (e.g. of concrete
or sheet steel). The recirculation silencer is mounted on the
appliance and thus reduces the sound reflection from the
ceiling. Insertion attenuation is 3 dB compared with the total
sound power level of each TopVent
®
unit.
Mount the recirculation units as usual via the 4 fastening
points in the heating section (for example, using the optional
suspension set).
Caution
Risk of injury from falling parts. The silencer cannot
bear the weight of the appliance. Do not locate any
suspension points on the silencer.
B
A
Size
6
9
A
mm
900
1100
B
mm
380
485
Weight
kg
15
20
Table F9: Dimensions and weights of the recirculation silencers
66
Options
Recirculation silencer
