Sound values

Table 1. Vallox 125MV - 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 positions (%)		10	20	30	40	50	60	70	80	100
Medium frequency of the octave band Hz	63	84	84	81	80	70	73	73	68	61
	125	81	80	74	72	71	68	65	64	57
	250	74	74	73	71	69	67	65	71	57
	500	76	75	70	64	62	60	63	58	43
	1000	70	70	67	67	64	61	58	54	43
	2000	64	64	62	59	57	54	51	47	33
	4000	59	59	57	55	53	49	45	40	23
	8000	55	55	53	50	47	43	38	32	21
L_W, dB		87	86	82	81	181	76	75	73	64
_LWA, dB(A)		76	75	72	70	68	65	64	64	51

Table 2. Vallox 125 MV — 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
Medium frequency of the octave band Hz	63	82	82	81	79	78	74	69	66	56
	125	78	78	72	69	67	64	62	58	48
	250	68	68	67	66	65	61	58	55	46
	500	56	56	54	52	56	49	46	43	30
	1000	50	50	48	47	45	42	39	35	24
	2000	44	44	43	41	39	35	32	27	16
	4000	37	37	36	34	31	28	24	20	16
	8000	32	32	30	28	25	23	21	20	20
L_W, dB		84	83	82	80	78	75	50	67	57
L_WA, dB(A)		65	65	62	60	59	56	53	49	40


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	80	100
LpA, dB (A)	26	30	36	41	43	44	45	47	47

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