Noise Criterion Curves - Sanyo SPW-C483GYH8 Service Manual

4. 1-Way Air Discharge Semi-concealed Type

4-5. Noise criterion curves

MODEL
SOUND LEVEL : HIGH 34 dB(A), NC 25
CONDITION
1
SOURCE
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63
REMARKS :
NOTE
: SPW-AS93GH56
LOW 30 dB(A), NC 22
: Center, Under the unit 1.5 m
: 220 - 230 - 240 V, 1 Phase, 50 Hz
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
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.
ECO MULTI SYSTEM Unit Specifications
MODEL
SOUND LEVEL : HIGH 38 dB(A), NC 32
CONDITION
SOURCE
60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
THRESHOLD OF
20
NC-20
HEARING FOR
CONTINUOUS
NOISE
10
63
0285_AS_I
I - 54
: SPW-AS123GH56
LOW 31 dB(A), NC 25
: Center, Under the unit 1.5 m
: 220 - 230 - 240 V, 1 Phase, 50 Hz
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-50
NC-40
NC-30
NC-20
0286_AS_I
SM830052