IV - 57
TD831077
4
W-ECO MULTI SYSTEM Unit Specifications
4-4. Noise criterion curves
4. 1-Way Air Discharge Semi-concealed Type
MODEL : SPW-ASR93GH56
SPW-AS93GH56
SOUND LEVEL : HIGH 34 dB(A), NC 25
LOW 30 dB(A), NC 22
CONDITION : Center, Under the unit 1.5 m
SOURCE :
220 - 230 - 240 V, 1 Phase, 50 Hz
MODEL : SPW-ASR123GH56
SPW-AS123GH56
SOUND LEVEL : HIGH 38 dB(A), NC 32
LOW 31 dB(A), NC 25
CONDITION : Center, Under the unit 1.5 m
SOURCE :
220 - 230 - 240 V, 1 Phase, 50 Hz
REMARKS : 1. Value obtained in the actual place where the unit is installed may be slightly higher than the values
shown in this graph because of the conditions of operation, the structure of the building, the
background noise and other factors.
2. The test results were obtained from an anechoic room.
To evaluate “Noise level” the maximum number of the measured OCTAVE BAND SOUND PRES-
SURE 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.
NOTE
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002 µbar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
NC-20
NC-40
NC-50
NC-30
0285_AS_I
60
50
40
30
20
10
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002 µbar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
NC-20
NC-40
NC-50
NC-30
0286_AS_I
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