Roof fans - Troges
Roof fans - Troges
Roof fans - Troges
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RF Fans<br />
Accessories<br />
Attenuation and Inherent Noise of NDH <strong>Roof</strong> Adaptors<br />
NDH 40<br />
Attenuation D okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
<br />
Attenuation<br />
Inherent noise L w okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
Inherent noise<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
Frequency<br />
NDH 56<br />
<br />
<br />
Air flow rate (m 3 /h)<br />
Attenuation D okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
<br />
Attenuation<br />
Inherent noise L w okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
Inherent noise<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
Frequency<br />
NDH 71<br />
<br />
<br />
Air flow rate (m 3 /h)<br />
<br />
<br />
Attenuation D okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
Attenuation<br />
Inherent noise L w okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
<br />
Inherent noise<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
Frequency<br />
NDH 100<br />
Air flow rate (m 3 /h)<br />
Attenuation D okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
<br />
Attenuation<br />
Inherent noise L w okt<br />
[dB]<br />
<br />
<br />
<br />
<br />
<br />
<br />
Inherent noise<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
Frequency<br />
<br />
<br />
Air flow rate (m 3 /h)<br />
24
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