Sound values

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		10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Medium frequency of the octave band Hz	63	58	60	62	64	66	68	73	81	81	81
	125	47	52	57	59	62	65	67	68	68	68
	250	44	50	55	57	64	62	65	67	67	67
	500	39	46	52	54	57	59	62	65	66	67
	1000	32	40	45	48	52	56	59	64	64	64
	2000	21	30	37	42	45	48	51	53	53	53
	4000	18	22	30	36	42	46	49	52	52	52
	8000	21	21	23	27	34	40	44	48	48	48
L_W´ dB		58	61	64	66	70	71	75	82	82	82
L_WA´ dB(A)		41	47	52	55	59	61	64	67	68	68

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		10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
Medium frequency of the octave band Hz	63	52	52	55	55	59	61	72	70	72	72
	125	52	52	54	55	56	58	60	62	62	62
	250	30	33	39	42	44	47	50	51	52	51
	500	30	38	40	42	46	49	50	54	56	55
	1000	20	27	31	34	37	39	42	45	46	46
	2000	13	15	20	24	28	30	33	35	36	36
	4000	17	17	17	18	18	19	21	23	23	23
	8000	21	21	21	21	21	21	21	21	21	21
L_W´ dB		55	55	58	58	61	63	72	71	73	73
L_WA´ dB(A)		37	39	42	44	46	49	51	54	55	55

Table 3. Sound pressure level coming through the envelope
Sound pressure level coming through the envelope of the unit in the room in which it is installed (no standard extraction through the hood in the kitchen)
Adjustment position	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
L_pA, dB (A)	21	24	28	29	32	35	38	40	40	40


Vallox 51K MV (standard extraction 8 dm³/s through the hood in the kitchen)
Adjustment position	22%	40%
L_pA, dB (A)	28	32

You can calculate the sound values for each operating point with the Vallox MySelecta control panel.