Sound values

Table 1. Sound power level in the supply air duct

Sound power level in the supply air duct by octave band LW´ dB
Adjustment position (%)		10	20	30	40	50	60	70	80	90	100
Air flow (dm3/s)		15	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
LW, dB		61	70	72	75	77	82	82			81
LWA, 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 LW´ dB
Adjustment position (%)		10	20	30	40	50	60	70	80	90	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
LW, dB		55	61	64	65	68	78	72			74
LWA, 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	80	90	100
Air flow (dm3/s)	15/17	33/39	32/36	38/42	47/51	19/20	62/67			65/67
LpA, dB (A)	26.9	33.2	40	43.1	46.3	49.7	51.5			52.1