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• VRV
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Systems • Indoor Units
19
• Indoor Units • CONCEALED CEILING UNIT • FXSQ-P7VEB
9
Sound data
9 - 2 Sound power spectrum
FXSQ20-25P
3TW31187-1
Notes
1
dBA = A-weighted sound power level. (A-scale according to IEC)
2
Reference acoustic intensity 0dB = 10E-6μW/m
2
3
Measured according to ISO 3744
Sou
nd pr
essur
e level [d
B]
Octave band center frequency [dB]
High-tap
Medium-tap
Low-tap
FXSQ32P
3TW31207-1
Notes
1
dBA = A-weighted sound power level. (A-scale according to IEC)
2
Reference acoustic intensity 0dB = 10E-6μW/m
2
3
Measured according to ISO 3744
Sou
nd pr
essur
e level [d
B]
Octave band center frequency [dB]
High-tap
Medium-tap
Low-tap
FXSQ40-50P
3TW31217-1
Notes
1
dBA = A-weighted sound power level. (A-scale according to IEC)
2
Reference acoustic intensity 0dB = 10E-6μW/m
2
3
Measured according to ISO 3744
Sou
nd pr
essur
e level [d
B]
Octave band center frequency [dB]
High-tap
Medium-tap
Low-tap
FXSQ63P
3TW31237-1
Notes
1
Data is valid at free field condition
2
Data is valid at nominal operation condition
3
dBA = A-weighted sound power level. (A-scale according to IEC)
4
Reference acoustic pressures 0dB = 20μPa
5
Location of microphine
Sou
nd pr
essur
e level [d
B]
Octave band center frequency [dB]
High-tap
Medium-tap
Low-tap