Sound values


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Table 55. Sound power level in the supply air duct

Sound power level in the supply air duct by octave band L_W´ dB
Adjustment position		30%	40%	50%	60%	100%
Air flow dm³/s		132	160	190	213	250
Air flow m³/h		475.2	576	684	766.8	900
Medium frequency of the octave band Hz	63	66.1	69.3	72.1	73.8	77.0
	125	61.8	63.2	66.6	68.8	71.5
	250	56.0	62.1	63.9	66.6	69.9
	500	51.3	55.9	59.4	62.8	68.6
	1000	50.5	54.7	58.1	60.7	64.0
	2000	49.2	54.0	58.0	60.8	64.4
	4000	35.6*	42.4	48.0	51.8	56.7
	8000	28.1*	36.3	44.3	48.8	54.2
L_w´ dB		68.0	71.2	74.1	76.1	58.0
L_WA´ dB(A)		56.0	60.4	64.0	66.9	71.7

* The background noise requirement of standard ISO 3741:2010 is not met.

Table 56. Sound power level in the extract air duct

Sound power level in the extract air duct by octave band L_W´ dB
Adjustment position		30%	40%	50%	60%	100%
Air flow dm³/s		143	170	204	230	278
Air flow m³/h		514.8	612	734.4	828	1000.8
Medium frequency of the octave band Hz	63	53.6	56.7	60.0	62.7	66.3
	125	54.2	54.1	56.7	59.7	62.4
	250	50.9	58.4	60.7	64.1	65.5
	500	38.4	42.2	45.9	47.9	51.8
	1000	37.4	41.1	44.8	47.5	50.7
	2000	31.5*	36.2*	40.5	43.4	47.1
	4000	24.7*	28.0*	30.3*	33.6*	38.1
	8000	23.6*	23.8*	24.6*	25.9*	28.2*
L_w´ dB		58.0	61.6	64.4	67.4	70.0
L_WA´ dB(A)		45.5	50.2	53.4	57.0	59.3

* The background noise requirement of standard ISO 3741:2010 is not met.

Table 57. 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	30%	40%	40%	60%	100%
Air flow dm³/s	132/148	159/179	192/214	214/243	251/282
Air flow m³/h	475.2/532.8	572.4/644.4	691.2/770.4	770.4/874.8	903.6/1015.2
L_pA´ dB(A)	37.1	39.2	42.0	44.5	48.4