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		30	50	75	100	125	150	175	200	225
Medium frequency of the octave band Hz	63	56	60	65	67	70	74	75	78	79
	125	46	51	60	69	74	74	76	77	76
	250	36	46	52	57	67	72	74	76	77
	500	30	39	49	53	58	61	65	68	68
	1000	23	35	43	49	54	58	62	65	65
	2000	19	30	40	47	52	56	60	63	63
	4000	17	18	26	35	42	47	51	55	56
	8000	22	22	22	25	32	38	43	47	48
L_W´ dB		57	60	66	72	76	78	80	82	83
L_WA´ dB(A)		35	43	51	57	63	67	70	72	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			30	50	75	100	125	150	175	200	225
Medium frequency of the octave band Hz	63	45	51	53	57	61	64	67	69	70
	125	37	39	51	57	54	56	58	60	60
	250	35	36	43	47	53	63	61	65	66
	500	20	25	31	35	39	43	46	48	49
	1000	11	18	27	33	37	41	44	49	50
	2000	13	14	20	27	32	36	40	43	44
	4000	17	16	17	18	22	26	31	34	36
	8000	22	22	22	22	22	22	23	25	26
L_W´ dB			46	52	56	60	62	67	69	71	72
L_WA´ dB(A)			30	32	39	44	47	55	54	58	59

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	30	50	75	100	125	150	175	200	225
L_pA, dB (A)	23	23	28	34	39	42	45	49	48

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