Sound values

Table 1. Sound power level in the supply air duct
Sound power level in the supply air ducts by octave band L_W´ dB
Air flow l/s		20	30	40	50	60	70	80	90	110
Medium frequency of the octave band Hz	63	60	63	66	70	74	78	80	82	82
	125	56	60	62	64	66	69	70	73	78
	250	52	57	61	63	65	67	69	73	72
	500	39	45	50	54	58	61	64	71	70
	1000	40	46	52	56	59	62	65	67	69
	2000	28	37	43	48	52	56	59	62	63
	4000	18	26	34	40	45	49	53	56	58
	8000	22	22	26	32	38	43	48	51	53
L_W´ dB			66	69	72	76	79	81	84	84
L_WA´ dB(A)			52	56	60	63	66	69	73	73

Table 2. Sound power level in the extract air duct
Sound power level in the extract air ducts by octave band L_W´ dB
Air flow l/s			20	30	40	50	60	70	80	90	110
Medium frequency of the octave band Hz	63	52	55	60	66	70	75	77	80	82
	125	45	50	53	57	59	62	64	67	69
	250	35	43	48	53	55	58	60	62	64
	500	26	31	36	40	45	46	50	51	59
	1000	17	24	30	34	38	41	43	46	48
	2000	13	15	20	24	29	33	36	39	42
	4000	16	16	17	18	21	24	27	30	34
	8000	22	22	21	22	22	22	24	26	29
L_W´ dB			53	57	61	66	70	75	77	80	82
L_WA´ dB(A)			33	38	43	47	51	54	56	58	61

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 (10m² sound absorption)
Air flow l/s	20	30	40	50	60	70	80	90	100
L_pA, dB (A)	24	29	34	38	41	45	48	50	51

The operating-point-specific sound values can be calculated with the Vallox MySelecta product selection program.