Hitachi UTOPIA R32 Series - 15.1 General Considerations; 15.2 General Maintenance Work

5 Acoustic characteristic curves
Sound power curves
TCGB0136 rev.1 - 05/2021
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RAS-4H(V)(R/N)P2E RAS-5H(V)(R/N)P2E
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)
RAS-6H(V)(R/N)P2E
Octave sound power level (dB)
Approximate
threshold of hearing
for continuous noise
Frequency (Hz)
Sound power level: Global 72 dB(A)