SM830063
I - 35
1
ECO MULTI SYSTEM Unit Specifications
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
0275_X_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
0274_X_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
0273_X_I
2. 4-Way Air Discharge Semi-concealed Type
2-5. Noise criterion curves
MODEL
: SPW-XR123GH56 , XR183GH56
SOUND LEVEL
: HIGH
37 dB(A),
NC 30
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-XR253GH56
SOUND LEVEL
: HIGH
37 dB(A),
NC 30
LOW
31 dB(A),
NC 22
CONDITION
: Center,
Under the unit 1.5 m
SOURCE
: 220 - 230 - 240 V,
1 Phase,
50 Hz
MODEL
: SPW-XR363GH56 , XR483GH56
SOUND LEVEL
: HIGH
43 dB(A),
NC 36
LOW
36 dB(A),
NC 24
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.
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.
