Sound values


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Sound values

Table 50. Sound power level in the supply air duct

Sound power level in the supply air duct by octave band L_W´ dB
Adjustment position		21%	35%	41%	50%	56%	65%	72%	100%
Air flow dm³/s		36.2	56.3	67.3	80.7	92.9	105	116	128
Air flow m³/h		130.32	202.68	242.28	290.52	334.44	378	417.6	460.8
Medium frequency of the octave band Hz	63	41	50	56	58	59	64	67	69
	125	45	53	56	59	62	65	68	71
	250	50	54	57	61	63	66	68	70
	500	48	53	56	59	60	63	65	68
	1000	45	54	57	60	62	64	66	67
	2000	35	46	50	55	58	61	64	66
	4000	26	41	46	51	54	58	60	63
	8000	21	32	38	45	49	53	56	59
L_w´ dB		54	60	64	67	69	72	74	77
L_WA´ dB(A)		49	57	60	63	66	68	70	73

Table 51. Sound power level in the extract air duct

Sound power level in the extract air duct by octave band L_W´ dB
Adjustment position		21%	35%	41%	50%	56%	65%	72%	100%
Air flow dm³/s		40.5	63.8	73.8	87.9	98.9	110	122	136
Air flow m³/h		145.8	229.68	265.68	316.44	356.04	396	439.2	489.6
Medium frequency of the octave band Hz	63	35	54	49	51	51	56	58	58
	125	33	43	46	49	49	54	56	59
	250	24	32	37	40	40	45	47	49
	500	37	43	46	48	48	52	54	56
	1000	30	36	39	42	42	46	48	50
	2000	22	32	34	38	38	43	45	48
	4000	16	20	22	25	25	31	33	36
	8000	21	21	21	21	21	24	26	28
L_w´ dB		41	49	49	55	57	60	61	63
L_WA´ dB(A)		36	42	42	48	50	52	54	56

Table 52. Sound pressure level (A)

Sound pressure level, in decibels (A) coming through the envelope from the room in which the unit is installed (10m² sound absorption)
Adjustment position	21%	35%	41%	50%	56%	65%	72%	100%
Air flow dm³/s	36/39	56/62	68/74	81/89	92/98	105/113	116/126	131/142
Air flow m³/h	129.6/140.4	201.6/223.2	244.8/266.4	291.6/320.4	331.2/352.8	378/406.8	417.6/453.6	471.6/511.2
L_pA´ dB(A)	27	34	37	40	42	45	47	50

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