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4 - 72
Mini ECO-i SYSTEM Unit Specifications
4. 1-Way Air Discharge Semi-Concealed Type (AS Type)
4-4. Noise Criterion Curves
MODEL : SPW-ASR74GX56(A/B)
-ASR94GXH56(A/B)
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, Single-phase, 50 Hz
MODEL : SPW-ASR124GXH56(A/B)
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, Single-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.
NOTE
60
50
40
30
20
10
Sound Pressure Level (dB)
(0 dB = 0.0002 µbar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-20
NC-40
NC-50
NC-30
60
50
40
30
20
10
(0 dB = 0.0002
µ
bar)
63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-20
NC-40
NC-50
NC-30
To evaluate the noise level, the maximum value of the measured sound pressure level is used. Read
the value at each frequency level (on horizontal axis, center of the sound pressure band) from 63 Hz
to 8000 Hz, and select the corresponding maximum value indicated on the vertical axis.
Frequency at center of sound pressure band (Hz) Frequency at center of sound pressure band (Hz)
Sound Pressure Level (dB)
06-405 Mini-ECOi_TD4 11/8/06 4:28 PM Page 72
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