Noise Levels - intensity MDV-D36DL/VN1-C Service Manual

MAN-S-CF-1112

9. Noise Levels

9.1 Test condition
3.28ft
Note:
1, during actual operation, these values are normally somewhat higher as a result of ambient conditions.
2, Anechoic chamber conversion value, measured at a point 3.28ft(1m) in front of the unit at a height of 4.92ft(1.5m)
9.2 Test data (Sound Pressure Levels)
Model
MDV-D36DL/VN1-C
MDV-D45DL/VN1-C
MDV-D56DL/VN1-C
MDV-D71DL/VN1-C
MDV-D80DL/VN1-C
MDV-D90DL/VN1-C
MDV-D112DL/VN1-C
MDV-D140DL/VN1-C
MDV-D160DL/VN1-C
9.3 Octave Band Level
MDV-D36DL/VN1-C
Audibility limits of
continuous white
sound
Octave band center frequency （ Hz ）
23
Noise level under three speeds of fan (dB(A))
H
40
43
43
43
45
45
47
47
52
Audibility limits of
continuous white
sound
Ceiling & Floor Type
3.28ft
M
38
41
41
41
43
43
45
45
50
MDV-D45(56)(71)DL/VN1-C
Octave band center frequency （ Hz ）
L
36
38
38
38
40
40
42
42
48