Liebert Hiflex - 9 -Sound Pressure Level

Hiflex
30 all Versions
9 - Sound Pressure Level
Hiflex units have been designed with
particular care for sound and vibration
problems. The complete mechanical in
sulation of the ventilating section, com
bined with the special study of the ae
raulic circuit as a consequence of
accurate researches made in our ther
modynamical laboratories and the oversizing of the components crossed by air offer the highest ventila
tion efficiency with the lowest sound emission.
9.1 - Sound emission spectra
The following tables show the noise levels for every octave band frequency.
Version UNDER - 50 Hz
Model Mode
octave band frequency (Hz)
Sound
Level
Model
Mode
31.5 63 125 250 500 1000 2000 4000 8000 [dB(A)]
SPL(1) 45.1 42.5 42.5 46.6 40.4 37.8 34.2 27.6 18.0 43.5
4MUA
SPL(2) 49.1 54.8 47.9 48.0 40.9 39.7 35.0 28.0 19.0 44.9
4MUA
PWL(3) 64.6 64.6 66.1 67.1 66.1 63.6 60.1 56.1 51.1 68.5
SPL(1) 47.1 44.5 44.5 48.6 42.4 39.8 36.2 29.6 20.0 45.5
4SUA/W
SPL(2) 51.1 56.8 49.9 50.0 42.9 41.7 37.0 30.0 21.0 46.9
4SUA/W
PWL(3) 66.6 66.6 68.1 69.1 68.1 65.6 62.1 58.1 53.1 70.5
SPL(1) 50.4 47.3 48.7 53.9 46.3 43.8 40.2 34.2 24.1 49.9
4LUA/W
SPL(2) 50.5 52.4 50.9 53.4 46.4 44.8 40.4 34.1 24.1 50.1
4LUA/W
PWL(3) 73.4 73.4 74.9 75.9 74.9 72.4 68.9 64.9 59.9 77.3
4LUC
SPL(1) 50.4 47.3 48.7 53.5 46.3 43.8 40.2 34.2 24.1 49.8
4LUC
PWL(4) 73.4 73.4 74.9 75.9 74.9 72.4 68.9 64.9 59.9 77.3
SPL(1) 50.1 47.5 47.5 51.6 45.4 42.8 39.2 32.6 23.0 48.5
5SUA/W
SPL(2) 54.1 59.8 52.9 53.0 45.9 44.7 40.0 33.0 24.0 49.9
5SUA/W
PWL(3) 69.6 69.6 71.1 72.1 71.1 68.6 65.1 61.1 56.1 73.5
SPL(1) 53.4 50.3 51.7 56.9 49.3 46.8 43.2 37.2 27.1 52.9
5LUA/W
SPL(2) 53.5 55.4 53.9 56.4 49.4 47.8 43.4 37.1 27.1 53.1
5LUA/W
PWL(3) 76.4 76.4 77.9 78.9 77.9 75.4 71.9 67.9 62.9 80.3
SPL(1) 54.7 49.5 50.0 52.4 46.4 44.3 41.0 35.2 24.2 49.8
6SUA/W
SPL(2) 54.5 59.0 50.7 52.9 46.1 44.5 41.0 35.3 24.9 50.0
6SUA/W
PWL(3) 72.3 72.3 73.8 74.8 73.8 71.3 67.8 63.8 58.8 76.2
SPL(1) 55.0 51.0 50.0 52.9 50.4 45.2 41.3 36.0 25.3 51.4
6LUA/W
SPL(2) 54.7 58.7 51.1 53.3 49.3 45.3 41.8 36.3 25.8 51.3
6LUA/W
PWL(3) 72.7 72.7 74.2 75.2 74.2 71.7 68.2 64.2 59.2 76.6
6LUC
SPL(1) 55.0 51.0 50.0 52.9 50.4 45.2 41.3 36.0 25.3 51.4
6LUC
PWL(4) 72.7 72.7 74.2 75.2 74.2 71.7 68.3 64.2 59.2 76.6
SPL(1) 57.7 52.5 53.0 55.4 49.4 47.3 44.0 38.2 27.2 52.8
7SUA/W
SPL(2) 57.5 62.0 53.7 55.9 49.1 47.5 44.0 38.3 27.9 53.0
7SUA/W
PWL(3) 75.3 75.3 76.8 77.8 76.8 74.3 70.8 66.8 61.8 79.2
SPL(1) 58.0 54.0 53.0 55.9 53.4 48.2 44.3 39.0 28.3 54.4
7LUA/W
SPL(2) 57.7 61.7 54.1 56.3 52.3 48.3 44.8 39.3 28.8 54.3
7LUA/W
PWL(3) 75.7 75.7 77.2 78.2 77.2 74.7 71.2 67.2 62.2 79.6
SPL(1) 54.4 51.2 50.6 49.1 48.3 43.3 40.6 34.9 23.0 49.4
8SUA/W
SPL(2) 53.6 56.4 59.3 49.1 48.4 43.5 40.6 35.0 23.5 50.3
8SUA/W
PWL(3) 73.7 73.7 75.2 76.2 75.2 72.7 69.2 65.2 60.2 77.6
SPL(1) 56.2 52.8 53.4 52.7 48.3 46.3 43.8 38.3 26.7 51.7
8LUA/W
SPL(2) 55.9 63.6 59.4 52.1 49.3 46.7 44.2 38.5 26.7 52.6
8LUA/W
PWL(3) 75.8 75.8 77.3 78.3 77.3 74.8 71.3 67.3 62.3 79.7