9
© VALLOX • We reserve the right to make changes without prior notice.
What the units include can vary depending on the sales area.
Vallox
121
SE
Dimensions and duct outlets
Measuring points
Measuring points after the connection
outlet. Fan curves indicate the total pressure
available for duct losses.
Input powers of fans
Supply/extract air flows
Sound values
TECHNICAL DATA
Duct outlets
Inner diameter of female outlet
collar 125
1. Supply air to the dwelling
2. Extract air from the dwelling to
the unit
3. Outdoor air to the unit
4. Exhaust air out
Model R in
the figure
Fan
speeds
Extract
air flow
(l/s)
Combined input
power of fans
W
1
28
21
2
35
32
3
46
44
4
59
63
5
71
82
6
78
110
7
83
137
8
106
224
E = Extract air fan
S = Supply air fan
Input power (total) (W)
Air flow (max.) (dm
3
/s)
SFP =
SFP (Specific Fan Power) recommended value <2,5 (kW m
3
/s)
At a lower total pressure, SFP will be smaller at this speed.
T
T
T
dm
3
/s
T
P
P
P
P
5
6
7
8
10
20
30
50
60
70
80
100
110
P
P
P
P
T
T
T
T
1
2
3
4
Pa
0
100
50
150
200
250
300
40
90
SFP, kW / (m/s) 1.5
SFP, kW / (m/s) 2.5
Pressure loss in ducts. T
otal pressure.
Recommended
operating range
Volume flow rate
Sound power level in supply air duct
(one duct) by octave band L
W
, dB
Sound power level in extract air duct
(one duct) by octave band L
W
, dB
ADJUSTMENT POSITION/AIR FLOW dm
3
/s
ADJUSTMENT POSITION/AIR FLOW dm
3
/s
Adjustment position
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Air flow dm
3
/s
25.7
41.5
51.0
53.9
58.8
75.6
78.8
101.0
29.5
41.3
43.8
51.9
60.8
70.7
75.3
96.0
Medium
frequen-
cy of the
octave
band Hz
63
63
69
73
76
77
80
82
83
45
52
58
61
63
66
68
72
125
55
60
63
67
70
71
74
78
46
51
54
57
60
62
64
69
250
42
49
52
55
57
61
63
67
33
40
43
47
49
51
53
58
500
45
51
53
55
58
60
62
67
32
36
38
41
44
47
48
52
1000
42
49
52
54
56
59
60
63
25
30
33
35
38
40
41
45
2000
36
44
49
52
55
59
60
65
13
21
24
28
31
34
36
40
4000
23
34
39
42
45
49
51
56
*
*
10
13
17
21
23
28
8000
*
25
31
36
40
44
47
53
*
*
*
*
*
*
*
16
L
W
,dB
L
WA
, dB(A)
64
70
73
77
78
80
83
85
49
55
60
63
65
68
70
74
47
53
57
59
62
65
66
71
35
40
42
46
48
50
52
57
Sound pressure level dB (A) coming from the unit through the envelope
in the rooms where the unit has been installed
(10m
2
sound absorption)
Vallox 121 SE
ADJUSTMENT POSITION/AIR FLOW dm
3
/s
1
2
3
4
5
6
7
8
30/30 41/41 49/47 55/55 64/63 72/71 80/78 100/96
L
pA
, dB (A)
26
31
34
36
39
41
43
47
70 mm installation space
Model: L
Model: R
Extract air
Supply air
E
S
