Sanyo KH2442 / CH2442 Service Manual page 94

1-10 Noise Criterion Curves
4-Way Air Discharge Semi-concealed Type
MODEL : XH2442
SOUND LEVEL : HIGH 38 dB(A), NC 31
CONDITION : Center, Under the unit 4.9 ft.
SOURCE : 208 - 230 V, 1 Phase, 60 Hz
60
50
40
30
1
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125
2
BAND CENTER FREQUENCIES, Hz
MODEL : XH3642
SOUND LEVEL : HIGH 44 dB(A), NC 37
CONDITION : Center, Under the unit 4.9 ft.
3
SOURCE : 208 - 230 V, 1 Phase, 60 Hz
60
50
4
40
30
APPROXIMATE
THRESHOLD OF
5
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
LOW 31 dB(A), NC 23
250 500 1000 2000 4000 8000
LOW 33 dB(A), NC 25
250 500 1000 2000 4000 8000
NC-50
NC-40
NC-30
NC-20
2108_X_I
MODEL
SOUND LEVEL : HIGH 45 dB(A), NC 38
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
NC-20
CONTINUOUS
NOISE
10
63
2109_X_I
I - 90
1. Specifications
: XH4242
LOW 34 dB(A), NC 27
: Center, Under the unit 4.9 ft.
: 208 - 230 V, 1 Phase, 60 Hz
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-50
NC-40
NC-30
NC-20
2110_X_I
SM830082