• Air Handling Unit Connection • Heat pump
25
• Air Handling Unit Connection • ERQ-AV1
9
Sound data
9 - 2 Sound power spectrum
3TW27637-3
Sound
power
level(dB)
Octave band center frequency (Hz)
ERQ100AV1
NOTES
1
dBA = A-weighted sound power level (A-scale according to IEC)
2
Refernece acoustic intensity 0dB = 10E-6
μ
W/m
_
3
Measured according to ISO 3744
3TW27647-3
Sound
power
level(dB)
Octave band center frequency (Hz)
ERQ125AV1
NOTES
1
dBA = A-weighted sound power level (A-scale according to IEC)
2
Refernece acoustic intensity 0dB = 10E-6
μ
W/m
_
3
Measured according to ISO 3744
3TW27657-3
Sound
power
level(dB)
Octave band center frequency (Hz)
ERQ140AV1
NOTES
1
dBA = A-weighted sound power level (A-scale according to IEC)
2
Refernece acoustic intensity 0dB = 10E-6
μ
W/m
_
3
Measured according to ISO 3744