Sound Pressure Levels - Mitsubishi Electric Mr.Slim PEAD-RP35JALQ Service Manual

5

SOUND PRESSURE LEVELS

5-1. Sound pressure level
Ceiling concealed
5-2. NC curves
PEAD-RP35JA(L)Q
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0
audible limit on
continuous noise
5.0
0.0
63 125 250
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0
audible limit on
continuous noise
5.0
0.0
63 125 250
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
Approximate minimum
10.0
audible limit on
continuous noise
5.0
0.0
63 125 250
Aux. duct
test unit
2m
Measurement location
(External static pressure 35Pa)
High Low
Middle
500 1k 2k 4k
Octave band center frequencies (Hz)
(External static pressure 50Pa)
High Low
Middle
500 1k 2k 4k
Octave band center frequencies (Hz)
(External static pressure 70Pa)
High Low
Middle
500 1k 2k 4k
Octave band center frequencies (Hz)
2m
70.0
65.0
60.0
NC-60
55.0
50.0
NC-50
45.0
40.0
NC-40
35.0
30.0
NC-30
25.0
20.0
NC-20
15.0
Approximate minimum
10.0
audible limit on
continuous noise
5.0
0.0
8k 63 125 250
70.0
65.0
60.0
NC-60
55.0
50.0
NC-50
45.0
40.0
NC-40
35.0
30.0
NC-30
25.0
20.0
NC-20
15.0
Approximate minimum
10.0
audible limit on
continuous noise
5.0
0.0
8k 63 125 250
NC-60
NC-50
NC-40
NC-30
NC-20
8k
15
(External static pressure 100Pa)
High Low
Middle
500 1k 2k 4k
Octave band center frequencies (Hz)
(External static pressure 150Pa)
High Low
Middle
500 1k 2k 4k
Octave band center frequencies (Hz)
NC-60
NC-50
NC-40
NC-30
NC-20
8k
NC-60
NC-50
NC-40
NC-30
NC-20
8k