Panasonic S-22MU1E51 Technical Data Manual page 25

17. Slim Low Static Ducted Type (M1 Type)
17-4. Noise Criterion Curves
MODEL : S-15MM1E5 / 22MM1E5
SOUND LEVEL : STRONG
WEAK
CONDITION : 1.5 m directly below unit
60
50
40
30
Approximate
minimum
audible limit for
20
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
MODEL : S-36MM1E5
SOUND LEVEL : STRONG
WEAK
CONDITION : 1.5 m directly below unit
60
50
40
30
Approximate
20 minimum
audible limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
MODEL
: S-56MM1E5
SOUND LEVEL :
STRONG
WEAK
1.5 m directly below unit
CONDITION :
60
50
40
30
20
Approximate
minimum
audible limit for
continuous noise
10
63 125 250
Overall
Frequency at center of sound pressure band (Hz)
REMARKS: 1. Value obtained in the actual place where the unit is
installed may be slightly higher than the values shown
in this graph because of the conditions of operation,
the structure of the building, the backgroundnoise and
other factors.
2. The test results were obtained from an anechoic room.
3. The layout of the testing condition is shown at right.
NOTE
To evaluate the noise level, the maximum value of the measured sound pressure level is used. Read the value at
each frequency level (on horizontal axis, center of the sound pressure band) from 63 Hz to 8000 Hz, and select the
corresponding maximum value indicated on the vertical axis.
28 dB(A)
25 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
32 dB(A)
28 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
35 dB(A)
31 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
MODEL : S-28MM1E5
SOUND LEVEL : STRONG
WEAK
CONDITION : 1.5 m directly below unit
60
50
40
30
20
Approximate
minimum
audible limit for
continuous noise
10
Overall 63 125 250
Frequency at center of sound pressure band (Hz)
MODEL : S-45MM1E5
SOUND LEVEL : STRONG
WEAK
CONDITION : 1.5 m directly below unit
60
50
40
30
20
Approximate
minimum
audible limit for
continuous noise
10
Overall 63 125 250
Frequency at center of sound pressure band (Hz)
Air discharge
(Low Silhouette Ducted Type)
4-307
2WAY SYSTEM Unit Specifi cations
Both 50Hz and 60Hz
Strong
Weak
30 dB(A)
27 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
34 dB(A)
30 dB(A)
NC-50
NC-40
NC-30
NC-20
500 1000 2000 4000 8000
Auxiliary Duct Auxiliary Duct
of 2 m length of 1 m length
Unit
1.5 m directly below unit
1
2
3
4
5
6
7
Air intake
8
9