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Sound Pressure Levels; Nc Curves - Mitsubishi Electric PKFY-P-NAMU-E Engineering Manual

Mitsubishi electric wall mounted type air conditioner
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5. SOUND PRESSURE LEVELS

5-1. Sound Pressure Levels
Wall mounted
3-1/4ft.
(1m)
Measurement
location
* Measured in anechoic room.

5-2. NC Curves

PKFY-P06, 08NBMU-E
External Static Pressure: 0Pa, 0 [in.WG]
Power Source: 208-230V, 60Hz
70.0
High
Low
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
15.0
continuous noise
10.0
63
125
250
500
1k
2k
Octave band center frequencies (Hz)
PKFY-P24NKMU-E
External Static Pressure: 0Pa, 0 [in.WG]
Power Source: 208-230V, 60Hz
70.0
High
Low
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
15.0
continuous noise
10.0
63
125
250
500
1k
2k
Octave band center frequencies (Hz)
3-1/4ft.
(1m)
PKFY-P12, 15NHMU-E
External Static Pressure: 0Pa, 0 [in.WG]
Power Source: 208-230V, 60Hz
70.0
60Hz
60Hz
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
15.0
audible limit on
continuous noise
10.0
63
125
250
500
4k
8k
Octave band center frequencies (Hz)
PKFY-P30NKMU-E
External Static Pressure: 0Pa, 0 [in.WG]
Power Source: 208-230V, 60Hz
70.0
60Hz
60Hz
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
15.0
continuous noise
10.0
4k
8k
63
125
250
500
Octave band center frequencies (Hz)
PKFY-P-NBMU-E/PKFY-P-NHMU-E/PKFY-P-NKMU-E (June 2010)
Sound level at anechoic room : Low-(Middle2-Middle1)-High
Model
PKFY-P06,08NBMU-E
PKFY-P12,15NHMU-E
PKFY-P18NHMU-E
PKFY-P24NKMU-E
PKFY-P30NKMU-E
PKFY-P18NHMU-E
External Static Pressure: 0Pa, 0 [in.WG]
Power Source: 208-230V, 60Hz
70.0
60Hz
High
60Hz
Low
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
15.0
continuous noise
10.0
1k
2k
4k
8k
63
125
Octave band center frequencies (Hz)
60Hz
High
60Hz
Low
NC-60
NC-50
NC-40
NC-30
NC-20
1k
2k
4k
8k
Sound level dB (A)
32-33-35-36
34-38-42
36-41-45
39-45
43-49
High
60Hz
60Hz
Low
NC-60
NC-50
NC-40
NC-30
NC-20
250
500
1k
2k
4k
8k
PKFY-13

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