Zehnder ComfoWell attenuator, CW-S 220

Data Table

Label	Value
Catalogue number	990323500
GTIN	7640138031069
Surface protection	Sendzimir galvanised
Height	241 mm
Width	236 mm
Connection 2	Other
Nominal duct width	220 mm
Damping 1000 Hz	14.8 dB
With inspection opening and cover
Damping 4000 Hz	25.8 dB
Damping 2000 Hz	32.2 dB
Connection 1	Other
Damping 125 Hz	10.2 dB
Damping 250 Hz	11.1 dB
Air extraction
Damping 500 Hz	16.3 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	5.9 dB
Material quality	Other
Max. medium temperature (continuous)	80 °C
Air supply
Max. air volume	220 m³/h
Damping 8000 Hz	28.1 dB
Length	230 mm
Embeddable in concrete

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