I - 108
SM830063
ECO MULTI SYSTEM Unit Specifications
1
0314_D_I
90
80
70
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
250
500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002 µbar)
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
8-5. Noise criterion curves
MODEL
: SPW-DR253GH56
SOUND LEVEL : HIGH 44 dB(A), NC 38
CONDITION
: Under the unit 1.5 m
SOURCE
: 220 - 230 - 240 V, 1 Phase, 50 Hz
MODEL
: SPW-DR483GH56
SOUND LEVEL : HIGH 47 dB(A), NC 42
CONDITION
: Under the unit 1.5 m
SOURCE
: 220 - 230 - 240 V, 1 Phase, 50 Hz
MODEL
: SPW-DR363GH56
SOUND LEVEL : HIGH 45 dB(A), NC 39
CONDITION
: Under the unit 1.5 m
SOURCE
: 220 - 230 - 240 V, 1 Phase, 50 Hz
8. Concealed Duct High Static Pressure Type
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 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.
NOTE
0313_D_I
90
80
70
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
250
500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002
µ
bar)
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
0315_D_I
90
80
70
60
50
40
30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
250
500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB
(0 dB = 0.0002
µ
bar)
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
