Toshiba RAV-SM404SDT-E, RAV-SM454SDT-E SERVICE MANUAL
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Slim Duct Type
Engineering Data Book
RAV-SM404SDT-E, RAV-SM454SDT-E
[Measuring location]
Air outlet
Under air intake
2m
Duct
Center
1.5m
Air inlet
Microphon
[External static pressure 10Pa] [External static pressure 20Pa]
Fan tap H M L Fan tap H M L
Sound pressure
level (dB(A)) level (dB(A))
70
60
50
40
39 36 33
NC-50
NC-40
H
30
M
NC-30
L
Octave band sound pressure level(dB)
20
pproximate threshold of
hearing for continuous noise
10
63 125 250 500 1000 2000 4000 8000
Octave band center frequency(Hz)
NC-20
Sound pressure
70
60
50
40
40 37 34
H
M
30
20
pproximate threshold of
hearing for continuous noise
10
63 125 250 500 1000 2000 4000 8000
L
NC-50
NC-40
NC-30
NC-20
[External static pressure 35Pa] [External static pressure 50Pa]
Fan tap H M L Fan tap H M L
Sound pressure
level (dB(A)) level (dB(A))
70
60
50
40
30
Octave band sound pressure level(dB)
20
pproximate threshold of
hearing for continuous noise
10
63 125 250 500 1000 2000 4000 8000
41 38
H
M
L
Octave band center frequency(Hz)
35 43
NC-50
NC-40
NC-30
NC-20
Sound pressure
70
60
50
40
30
Octave band sound frequency level(dB)
20
pproximate threshold of
hearing for continuous noise
10
63 125 250 500 1000 2000 4000 8000
Octave band center frequency(Hz)
40 37
H
M
L
NC-50
NC-40
NC-30
NC-20
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