Hitachi UTOPIA R32 Series - Maintenance

5 Acoustic characteristic curves
Sound power curves
TCGB0136 rev.1 - 05/2021
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5.3 Sound power curves
RAS-3HVRC2 RAS-4H(V)(R/N)C2E
Octave sound power level (dB)
Approximate
threshold of hearing
for continuous noise
Frequency (Hz)
Octave sound power level (dB)
Approximate
threshold of hearing
for continuous noise
Frequency (Hz)
Sound power level: Global 67 dB(A) Sound power level: Global 70 dB(A)
RAS-5H(V)(R/N)C2E RAS-6H(V)(R/N)C2E
Octave sound power level (dB)
Approximate
threshold of hearing
for continuous noise
Frequency (Hz)
Octave sound power level (dB)
Approximate
threshold of hearing
for continuous noise
Frequency (Hz)
Sound power level: Global 70 dB(A) Sound power level: Global 72 dB(A)