York YUHC 18 - Noise Level Analysis

Part3. Noise level
CONCEALED DUCT TYPE
Microphone
1.0m
Duct
18,000~24,000 btu/h 30,000~36,000 btu/h
Octave band center frequency£¨Hz£©
Sound pressure level dB£¨0dB=0.0002¦Ì bar£©
Audibility limits of
continuous white
sound
Audibility limits of
continuous white
sound
Sound pressure level dB£¨0dB=0.0002¦Ì bar£©
Octave band center frequency£¨Hz£©
48,000 btu/h 60,000btu/h
Audibility limits of
continuous white
sound
Sound pressure level dB£¨0dB=0.0002¦Ì bar£©
Octave band center frequency£¨Hz£©
Audibility limits of
continuous white
sound
Sound pressure level dB£¨0dB=0.0002¦Ì bar£©
Octave band center frequency£¨Hz£©