Sound values Vallox 245 MV VKL

Table 1. Sound power level in the supply air duct
Sound power level in the supply air duct by octave band LW´ dB
Adjustment position 54% 100%
Air flow dm3/s 181 221
Air flow m3/h 652 796
Medium frequency of the octave band Hz 63 72 76
125 67 71
250 65 69
500 59 66
1000 57 62
2000 57 62
4000 46 52
8000 40 47
Lw´ dB 74 79
LWA´ dB(A) 63 69
Table 2. Sound power level in the extract air duct
Sound power level in the extract air duct by octave band LW´ dB
Adjustment position 50% 100%
Air flow dm3/s 204 278
Air flow m3/h 734 1001
Medium frequency of the octave band Hz 63 60 66
125 57 62
250 61 66
500 46 52
1000 45 51
2000 41 47
4000 30 38
8000 25 28
Lw´ dB 64 70
LWA´ dB(A) 53 59
Table 3. Sound pressure level (A)
Sound pressure level, in decibels (A) coming through the envelope from the room in which the unit is installed (10 m2 sound absorption)
Adjustment position supply 54 / extract 44 supply 100 / extract 100
Air flow dm3/s supply 181 / extract 190 supply 221 / extract 282
LpA´ dB(A) 42 48