Sound Pressure Levels - Mitsubishi Electric Mr. Slim MVZ Series Service Manual

5

SOUND PRESSURE LEVELS

5-1. Sound pressure level
Ceiling concealed
5-2. NC curves
MVZ-A12AA4
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
Approximate minimum
audible limit on
5.0
continuous noise
0.0
63 25 250
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
Approximate minimum
audible limit on
5.0
continuous noise
0.0
63 25 250
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
Approximate minimum
5.0
audible limit on
continuous noise
0.0
63 25 250
ux.duct
Front side
3-1/4ft.
(1m)
Measurement location
ux.duct
External static pressure 0.30 [in.WG] (75Pa)
High Low
Middle
500 k 2k 4k
Octave band center frequencies (Hz)
External static pressure 0.50 [in.WG] ( 25Pa)
High Low
Middle
500 k 2k 4k
Octave band center frequencies (Hz)
External static pressure 0.80 [in.WG] (200Pa)
High Low
Middle
500 k 2k 4k
Octave band center frequencies (Hz)
MVZ-A18AA4
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
Approximate minimum
NC-20
audible limit on
5.0
continuous noise
0.0
63 25
8k
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
Approximate minimum
NC-20
5.0
audible limit on
continuous noise
0.0
8k 63 25
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
Approximate minimum
NC-20
5.0
audible limit on
continuous noise
0.0
8k 63 25
12
External static pressure 0.30 [in.WG] (75Pa)
High Low
Middle
250 500 k 2 k 4 k
Octav e band center frequencies (Hz)
External static pressure 0.50 [in.WG] ( 25Pa)
High Low
Middle
250 500 k 2k 4k
Octave band center frequencies (Hz)
External static pressure 0.80 [in.WG] (200Pa)
High Low
Middle
250 500 k 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
NC-60
NC-50
NC-40
NC-30
NC-20
8k