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 L_W´ 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
L_w´ dB		74	79
L_WA´ 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 L_W´ 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
L_w´ dB		64	70
L_WA´ 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
L_pA´ dB(A)	42	48