Sanyo KH2442 / CH2442 Service Manual page 98

1-10 Noise Criterion Curves
Outdoor Units
MODEL
SOUND LEVEL : 53 dB(A), NC 44
CONDITION
SOURCE
90
80
70
60
50
40
30
1
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63
MODEL
2
SOUND LEVEL : 56 dB(A), NC 47
CONDITION
SOURCE
90
80
70
3
60
50
40
30
4
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63
REMARKS: 1. Value obtained in the actual place where the unit is installed may be slightly higher than the values
5
2. The test results were obtained from an anechoic room.
NOTE
To evaluate "Noise level" the maximum number of the measured OCTAVE BAND SOUND PRESSURE LEVEL is used.
Read the number on each BAND CENTER FREQUENCIES (horizontal axis) ranging from 63 Hz to 8000 Hz and select
the maximum value (vertical axis) among them.
: CH2442
: Distance 1m, Height 1m
: 230 - 208 V, 1 Phase, 60 Hz
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
: CH4242
: Distance 1m, Height 1m
: 230 - 208 V, 1 Phase, 60 Hz
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
shown in this graph because of the conditions of operation, the structure of the building, the background
noise and other factors.
MODEL : CH3642
SOUND LEVEL : 56 dB(A), NC 45
CONDITION : Distance 1m, Height 1m
SOURCE : 230 - 208 V, 1 Phase, 60 Hz
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
CONTINUOUS
NOISE
10
60 125
BAND CAENTER FREQUENCIES, Hz
I - 94
1. Specifications
250 500 1000 2000 4000 8000
0598_C_S
SM830082