Viessmann VITOCAL 160-A - Pipework and moulded parts

Ensure that brief noise peaks never exceed the standard value by
more than 10 dB (A).
The silencers comprise the following:
■ Internal perforated aluminium pipe
■ Drip guard
■ Absorbent material
■ External aluminium pipe
The facing end pieces are two aluminium caps.
VDI Directive 2058 sheet 1 [or local regulations] applies to noise emis-
sions and to measuring noise.
Silencer DN 160, round, flexible
1100
Ø DN
a
Part no. 9521 461
■ Made from flexible pipe
■ Length 1.10 m
■ a = 200 mm
Attenuation characteristics
125 250 500 1000 2000 8000 Hz
0
10
20
30
40
50
Attenuation in dB
Octave centre frequency
4000 Hz
3.4 Pipework and moulded parts
Flexible pipe DN 160, thermally insulated
Ø DN+40
2500
Ø DN
Part no. 9521 450
■ Length 2.50 m
■ Thermal insulation made from resin-bonded mineral fibre
Extract/expelled air pipework
(cont.)
VITOCAL 160-A
VIESMANN
15
5822 485 GB
3