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6
Sound level
6-1
Sound level data
Sound
pressure
level
(dB)
Sound
pressure
level
(dB)
Octave band center frequency (Hz)
FCQ35-50B7
FCQ60B7
3TW22857-1
3TW22837-1
6-2
Sound pressure spectrum
Octave band center frequency (Hz)
NOTES
1
Data is valid at free field condition and nominal operation condition
(230V, air discharge in 4 directions).
2
The operation noise differs with the operation and ambient conditions.
3
dBA = A-weighted sound pressure level (A-scale according to IEC)
4
Reference acoustic pressure 0dB = 20µPa
Location of microphone
Model
Sound pressure level
Sound power level (H)
230V, 50Hz
Measuring location
H
L
FCQ35B7V1
31
27
48
FCQ50B7V1
31
27
48
FCQ60B7V1
33
28
50
Microphone
Unit
Legend
High speed
Low speed
•
4-Way Blow Ceiling Mounted Cassette
•
R-410A
•
FCQ35-60B7V1B
6
6-1
8
•
Split - Sky Air
•
Indoor Units