Zehnder ComfoWell attenuator, CW-S 320

Data Table

Label	Value
Catalogue number	990323501
GTIN	7640138031076
Surface protection	Sendzimir galvanized
Height	241 mm
Width	236 mm
Connection 2	Other
Nominal duct width	320 mm
Damping 1000 Hz	4.6 dB
With inspection opening and cover
Damping 4000 Hz	17.4 dB
Damping 2000 Hz	23 dB
Connection 1	Other
Damping 125 Hz	5.6 dB
Damping 250 Hz	9.2 dB
Air extraction
Damping 500 Hz	6.5 dB
Bottom connection
Expansion link finish	Other
Nominal duct diameter, main duct	Other
With edge links
Nominal duct height	230 mm
Material	Sendzimir-galvanised steel
Length	500 mm
With flow approach cap
Type of housing	Part with main air duct
Resonance plate	None
Material	Steel
Connection, main duct	Other
Damping 63 Hz	4.6 dB
Material quality	Other
Max. medium temperature (continuous)	80 °C
Air supply
Max. air volume	330 m³/h
Damping 8000 Hz	23.8 dB
Length	336 mm
Embeddable in concrete

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