Sound Pressure Levels - Mitsubishi Electric QAHV-N560YA-HPB Data Book

2. Product Data

2-2. Sound pressure levels

Measurement condition
QAHV-N560YA-HPB(-BS)
Sound Pressure Level: 56.0 / 58.0 dB (Spring, Autumn/Winter)
Opetation condition... Spring, Autumn: Outdoor temp.: 16°CDB/12°CWB, Inlet water temp.: 17°C, Outlet water temp.: 65°C
Winter: Outdoor temp.: 7°CDB/6°CWB, Inlet water temp.: 9°C, Outlet water temp.: 65°C
MEES19K001
90
80
70
60
50
40
30
20
Approximate minimum
audible limit on
continuous noise
10
63Hz 125Hz 250Hz
Octave band central frequency (Hz)
1m
Measurement
location
1.5m
Winter
Spring, Autumn
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
500Hz 1000Hz 2000Hz 4000Hz 8000Hz
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