Sound values


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Sound values

Table 32. Sound power level in the supply air duct

Sound power level in the supply air duct by octave band L_W´ dB
Adjustment position		7%	23%	37%	49%	56%	67%	78%	100%
Air flow dm³/s		10.6	25.2	38.1	46.6	53.8	65.6	72.9	76
Air flow m³/h		38.16	90.72	137.16	167.76	193.68	236.16	262.44	273.6
Medium frequency of the octave band Hz	63	39	52	61	62	64	71	69	68
	125	36	45	51	56	58	62	65	66
	250	41	51	57	60	62	65	67	68
	500	38	50	54	57	60	63	65	66
	1000	34	48	54	57	59	62	64	65
	2000	24	43	50	55	57	61	64	65
	4000	16	32	42	47	49	54	56	58
	8000	21	21	27	34	38	44	48	49
L_W´ dB		45	57	64	66	69	73	74	74
L_WA´ dB(A)		39	52	58	61	64	67	69	70

Table 33. Sound power level in the extract air duct

Sound power level in the extract air duct by octave band L_W´ dB
Adjustment position		7%	23%	37%	49%	56%	67%	78%	100%
Air flow dm³/s		12	27.6	36.7	44.2	50.5	61.0	70.4	76.4
Air flow m³/h		43.2	99.36	132.12	159.12	181.8	219.6	253.44	275.04
Medium frequency of the octave band Hz	63	26	30	40	44	47	53	54	57
	125	24	34	40	46	49	53	57	57
	250	22	33	39	42	45	49	53	54
	500	28	39	44	47	49	53	55	56
	1000	23	36	42	45	48	51	54	55
	2000	13	24	31	35	37	41	43	44
	4000	16	17	21	24	26	30	33	33
	8000	21	21	21	21	21	22	23	24
L_W´ dB		33	43	49	52	55	59	62	63
L_WA´ dB(A)		28	39	45	48	51	54	57	57

Table 34. 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	7%	23%	37%	49%	56%	67%	78%	100%
Air flow dm³/s	14/15	31/30	48/44	60/54	68/62	82/74	92/83	98/89
Air flow m³/h	50.4/54	111.6/108	172.8/158.4	216/194.4	244.8/223.2	295.2/266.4	331.2/298.8	352.8/320.4
L_pA´ dB(A)	23	29	35	38	41	44	46	47

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