Noise Criterion Curves - Sanyo SPW-CR363GVH8 Service Manual

3. 2-Way Air Discharge Semi-concealed Type

3-5. Noise criterion curves

MODEL
SOUND LEVEL : HIGH 32 dB(A), NC 29
CONDITION
1
SOURCE
90
80
70
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63
BAND CENTER FREQUENCIES, Hz
REMARKS :
NOTE
: SPW-SR93GH56
LOW 25 dB(A), NC 21
: Center, Under the unit 1.5 m
: 220 - 230 - 240 V, 1 Phase, 50 Hz
125 250 500 1000 2000 4000 8000
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 33 dB(A), NC 29
CONDITION
SOURCE
90
80
NC-70 70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
THRESHOLD OF
20
NC-20
HEARING FOR
CONTINUOUS
NOISE
10
63
BAND CENTER FREQUENCIES, Hz
0278_S_I
I - 48
: SPW-SR123GH56
LOW 26 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
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
0279_S_I
SM830063