5. SOUND LEVELS
YKB/YLM 2nd
1 - 68
PEFY-
VM
A(
L),
VMA3
MEE15K022
5-2. NC curves
5-2-1. NC curves (Sound level measured point : With 1m air inlet duct and 2m air outlet duct)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P20,25VMA(L)-E
External Static Pressure: 35Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P20,25VMA(L)-E
External Static Pressure: 50Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P20,25VMA(L)-E
External Static Pressure: 70Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P20,25VMA(L)-E
External Static Pressure: 100Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P20,25VMA(L)-E
External Static Pressure: 150Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P32VMA(L)-E
External Static Pressure: 35Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P32VMA(L)-E
External Static Pressure: 50Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P32VMA(L)-E
External Static Pressure: 70Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P32VMA(L)-E
External Static Pressure: 100Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P32VMA(L)-E
External Static Pressure: 150Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P40VMA(L)-E
External Static Pressure: 35Pa
Power Source: 220-240V(50/60Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63
125
250
500
1k
2k
4k
8k
NC-60
NC-50
Octave band pressure level (dB) 0dB=20μPa
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
Octave band center frequencies (Hz)
High
Middle
50/60Hz
Low
50/60Hz
50/60Hz
PEFY-P40VMA(L)-E
External Static Pressure: 50Pa
Power Source: 220-240V(50/60Hz)
