Hitachi UTOPIA R32 Series - Page 72

5 Acoustic characteristic curves
Sound pressure curves
TCGB0136 rev.1 - 05/2021
64
RAS-4H(V)(R/N)P2E RAS-5H(V)(R/N)P2E
Octave sound pressure level (dB: overall C scale)
(Hi) Heating
(Hi) Cooling
Approximate
threshold of hearing
for continuous noise
Night Shift
mode
Central frequency (cycle per second)
Octave sound pressure level (dB: overall C scale)
(Hi) Heating
(Hi) Cooling
Approximate
threshold of hearing
for continuous noise
Night Shift
mode
Central frequency (cycle per second)
Cooling/Heating/Night mode: 54/54/51 dB(A) Cooling/Heating/Night mode: 56/56/51 dB(A)
RAS-6H(V)(R/N)P2E
Octave sound pressure level (dB: overall C scale)
(Hi) Heating
(Hi) Cooling
Approximate
threshold of hearing
for continuous noise
Night Shift
mode
Central frequency (cycle per second)
Cooling/Heating/Night mode: 56/56/51 dB(A)