Sound values

Table 1. Sound power level in the supply air duct
Sound power level in the supply air duct (one duct) by octave band L_W´ dB
Adjustment position (%)		10	20	30	40	50	60	70	80	100
Air flow (dm³/s)		6	10	17	21	26	32	35	40	44
Medium frequency of the octave band Hz	63	59	66	70	72	74	79	78	79	81
	125	57	62	64	66	69	71	73	76	76
	250	47	55	62	66	68	69	71	73	73
	500	36	44	50	55	59	63	66	68	70
	1000	29	39	45	50	54	59	61	63	65
	2000	21	29	39	45	50	53	56	58	60
	4000	18	19	24	32	40	46	50	53	55
	8000	21	21	22	23	26	31	36	40	43
L_W, dB		62	67	71	74	76	80	80	81	83
L_WA, dB(A)		44	51	56	60	63	66	68	72	72

Table 2. Sound power level in the extract air duct
Sound power level in the extract air duct (one duct) by octave band L_W´ dB
Adjustment position (%)		10	20	30	40	50	60	70	80	100
Air flow (dm³/s)		7	14	22	24	30	35	40	45	48
Medium frequency of the octave band Hz	63	55	59	61	64	67	76	72	72	73
	125	57	60	62	66	68	70	72	74	77
	250	39	47	55	60	61	62	63	65	67
	500	26	33	38	42	47	52	55	57	57
	1000	21	29	34	38	42	45	48	50	52
	2000	13	15	22	27	32	35	37	39	41
	4000	17	17	18	18	21	25	28	32	34
	8000	21	22	21	21	22	22	22	22	23
L_W, dB		59	62	65	69	71	77	75	77	79
L_WA, dB(A)		41	45	50	54	56	58	60	62	64

Table 3. Sound pressure level in the room
Sound pressure level coming through the envelope of the unit in the room in which it is installed (10 m² sound absorption)
Adjustment position (%)	10	20	30	40	50	60	70	80	100
Air flow dm³/s (supply/extract)	6/7	12/14	19/22	22/25	27/30	31/34	35/40	41/45	44/48
LpA, dB (A)	24	29	35	38	40	45	47	49	50

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