Notes(1) The data are based on the following conditions.
Ambient air temperature: Indoor unit 27éWB. Outdoor unit 35éDB.
(2) The data in the chart are measured in an anechoic room.
(3) The noise levels measured in the field are usually higher than the data because of reflection.
5.1 Duct connected-High static pressure type (FDU)
Measured based on JIS B 8616
Mike position
Return duct
Supply duct
1m
2m
Air
Unit
Mike (at center & below unit)
1.5m
Models FDU224KXZE1, 280KXZE1
Noise level 52dB (A) at P-High
50dB (A) at High
47dB (A) at Medium
45dB (A) at Low
63 125 250 500 1000 2000 4000 8000
20
10
30
40
50
60
20
10
30
40
50
60
N30
N40
N20
N50
N60
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10
-5
Pa)
5.2 Outdoor air processing unit (FDU-F)
5. NOISE LEVEL
Measured based on JIS B 8616
Mike position
1m
Unit
Supply duct
Return duct
2m
1m
1m
Air
Models FDU650FKXZE1
Noise level 31dB (A) at High
63 125 250 500 1000 2000 4000 8000
20
10
30
40
50
60
20
10
30
40
50
60
N30
N40
N20
N50
N60
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10
-5
Pa)
Noise level 37dB (A) at High
63 125 250 500 1000 2000 4000 8000
20
10
30
40
50
60
20
10
30
40
50
60
N30
N40
N20
N50
N60
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10
-5
Pa)
Models FDU1100FKXZE1
Models FDU1800FKXZE1
Noise level 42dB (A) at High
63 125 250 500 1000 2000 4000 8000
20
10
30
40
50
60
20
10
30
40
50
60
N30
N40
N20
N50
N60
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10
-5
Pa)
Noise level 45dB (A) at High
63 125 250 500 1000 2000 4000 8000
20
10
30
40
50
60
20
10
30
40
50
60
N30
N40
N20
N50
N60
Mid Octave Band Frequency (Hz)
Souud Pressure Level (dB)
(standard 2×10
-5
Pa)
Models FDU2400FKXZE1
Notes(1) Values are for external static pressure of 200Pa.
.;7
-
18
-
dB(A) dB(A)
Power level
55
62
MODEL
FDU650FKXZE1
FDU1100FKXZE1
68
70
MODEL
FDU1800FKXZE1
FDU2400FKXZE1
Note (1) Values are for external static pressure of 200Pa.
Measurement location : reverberation chamber
Measurement conditions : JIS B 8616
dB(A)
Power level
75
MODEL
FDU224KXZE1
FDU280KXZE1
Note (1) Values are for external static pressure of 200Pa.
Measurement location : reverberation chamber
Measurement conditions : JIS B 8616