Sound values
63
125
250
500
1000
2000
4000
8000
L
W
, dB
L
WA
, dB(A)
Hz
L
pA
, dB(A)
2
35 l/s
69
57
40
44
43
29
24
69
48
4
60 l/s
76
68
51
51
53
42
37
31
77
57
6
86 l/s
82
75
59
58
57
51
45
39
83
63
8
107 l/s
87
82
65
64
60
58
51
45
88
69
2
40 l/s
58
54
41
31
31
25
60
40
4
67 l/s
64
64
53
40
42
37
27
67
50
6
93 l/s
70
70
61
46
46
45
34
27
73
56
8
125 l/s
74
75
65
52
50
51
40
32
78
61
2
33/37 l/s
27
4
58/62 l/s
36
6
80/87 l/s
42
8
98/113 l/s
47
1
2
3
4
5
6
7
8
60
80
100
120
140
160
180
230
Control
voltage
V
35
55
80
110
145
180
210
310
Total input
power
W
Fan
speeds
© VALLOX • We reserve the right to make changes without prior notification.
Air volumes
Sound power level from the ventilation unit
to supply air ducts by octave band Lw, dB
ADJUSTMENT POSITION / AIR FLOW
Sound power level from the ventilation unit
to extract air ducts by octave band Lw, dB
ADJUSTMENT POSITION / AIR FLOW
Medium
frequency
of the octave
band, Hz
ADJUSTMENT POSITION / AIR FLOWS (supply / extract)
A-weighted sound pressure level dB (A) coming from
the unit through the envelope in rooms where
the unit has been installed (10 m
2
sound absorption)
Measuring points after the outlet collar.
Fan curves indicate the total pressure
available for duct losses.
VALLOX DIGIT SE / VKL
RATINGS
3
VALLOX DIGIT SE
SFP 2.5 kW/m
3
/s
Pressure loss in ducts. T
otal pressure.
Volume flow rate
RECOMMENDED
OPERATING RANGE
E = Extract air fan
S = Supply air fan
E
S
E
S
E
S
E
S
E
S
S
E
S
E
S
E
SFP (Specific Fan Power)
guideline value < 2.5 (kW/m
3
/s)
At a lower total pressure, SFP will be smaller at this speed.
SFP =
Air flow (max.) (dm
3
/s)
Input power (total) (W)
Supply air
Extract air
E
S
Pressure loss in the supply and outdoor air ducts
Pressure loss in the extract and exhaust air ducts
