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	100
Air flow (dm³/s)		10	20	32	37	47	57	62	65
Medium frequency of the octave band Hz	63	60	67	68	72	73	79	79	78
	125	56	65	64	66	68	70	72	73
	250	51	58	67	70	74	78	76	76
	500	41	49	55	59	63	66	70	70
	1000	39	47	52	55	58	62	65	66
	2000	30	41	48	52	56	59	62	62
	4000	19	28	36	42	46	51	54	55
	8000	21	22	28	35	42	48	52	53
L_W, dB		61	70	72	75	77	82	82	81
L_WA, dB(A)		46	55	61	64	68	72	72	75

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	100
Air flow (dm³/s)		17	22	36	42	51	60	66	67
Medium frequency of the octave band Hz	63	54	58	59	63	66	78	70	73
	125	48	56	54	56	58	62	63	64
	250	43	50	61	59	61	63	65	64
	500	30	37	43	46	49	53	60	60
	1000	27	35	39	43	46	50	52	53
	2000	15	23	29	33	37	40	42	43
	4000	17	17	18	21	25	29	31	32
	8000	21	21	21	21	22	23	25	26
L_W, dB		55	61	64	65	68	78	72	74
L_WA, dB(A)		38	45	53	52	54	58	61	61

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 (10m² sound absorption)
Adjustment position (%)	10	20	30	40	50	60	70	100
Air flow dm³/s (supply/extract)	15/17	33/39	32/36	38/42	47/51	57/60	62/67	65/67
LpA, dB (A)	27	33	40	43	46	50	52	52

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