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Systems • Indoor Units
17
• Indoor Units • CONCEALED CEILING UNIT • FXSQ-P7VEB
9
Sound data
9 - 1 Sound pressure spectrum
FXSQ20-25P
3TW31187-2
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]
1.5m
Microphone
Unit
2m
2m
1.5m
1m
High-tap
Medium-tap
Low-tap
Discharge
Suction
FXSQ32P
3TW31207-2
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]
1.5m
Microphone
Unit
2m
2m
1.5m
1m
High-tap
Medium-tap
Low-tap
Discharge
Suction
FXSQ40-50P
3TW31217-2
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]
1.5m
Microphone
Unit
2m
2m
1.5m
1m
High-tap
Medium-tap
Low-tap
Discharge
Suction
FXSQ63P
3TW31237-2
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]
1.5m
High-tap
Medium-tap
Low-tap
mic. position
