Noise Criterion Curves - Technibel GRV250R5TAA Technical Data & Service Manual

1-8 Noise Criterion Curves

Outdoor Units
MODEL : GRV250R5TAA -GRV250R7TAA
GRV250L5TAA - GRV250L7TAA
SOUND LEVEL : 52 dB(A), NC 44
CONDITION : Distance 1m, Height 1m
SOURCE : 220 - 230 - 240 V, 1 Phase, 50 Hz
380 - 400 - 415V, 3 Phase, 50 Hz
90
80
70
60
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
NOISE
10
63 125
BAND CENTER FREQUENCIES, Hz
1
MODEL
SOUND LEVEL : 55 dB(A), NC 47
CONDITION
SOURCE
90
1 2
80
70
60
3
50
40
30
APPROXIMATE
THRESHOLD OF
20
HEARING FOR
CONTINUOUS
4
NOISE
10
63 125
BAND CENTER FREQUENCIES, 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.
5
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.
250 500 1000 2000 4000 8000
: GRV480R7TAA
GRV480L7TAA
: Distance 1m, Height 1m
: 380 - 400 - 415V, 3 Phase, 50 Hz
250 500 1000 2000 4000 8000
MODEL : GRV360R7TAA
GRV360L7TAA
SOUND LEVEL : 53 dB(A), NC 45
CONDITION : Distance 1m, Height 1m
SOURCE : 380 - 400 - 415 V, 3 Phase, 50 Hz
90
80
70
60
50
40
30
APPROXIMATE
20
THRESHOLD OF
CONTINUOUS
NOISE
10
60 125 250
BAND CAENTER FREQUENCIES, Hz
I - 94
1. Specifications
500 1000 2000 4000 8000
0598_C_S