Vallox Oy | Myllykyläntie 9-11 | 32200 LOIMAA | FINLAND
MANU
AL
D
10999
/0
2.
05
.2
02
2
Performance values
Adjusting the fan speeds
A low signal voltage is coming to the control panel and,
therefore, the adjustment is made when the fan is turned on.
• The adjustment is made by using the four holes
found underneath the knob of the ventilation control
panel (figure 2) one speed at a time, by using the
potentiometer of the speed in question.
• The set voltage can be measured from the measurement
points found underneath the knob of the control panel
(markings S and -) by using the DC voltage measuring of
a universal meter. The adjustment range is ~2…9.5 V.
• The control voltage (air flow) increases when the
potentiometer is turned to the right. The preset voltages
are 3 V,
Set the ventilation control to
position 1 and remove the
knob by using a screwdriver,
for example
Measure the voltage from
poles – and S, set e.g. speed
1 from potentiometer 1
Measure the voltage from
poles – and S, set speed 2
from potentiometer 2, etc.
There are holes for
adjustments and
measurements underneath
the knob
Replace the knob, set the
ventilation control to the next
speed, and remove the knob
again.
Lastly, measure the voltage of each speed from the
measuring pins and record them in the measurement log. In
e.g. terraced houses, the voltage measurement can be used
to “copy” the measurement made in the first apartment to
other similar apartments.
If the fan is only used as a cooker hood, adjust speed 1 so
that the fan will not be turned on.
1
3
5
2
4
N
L
PE
WT
GN BN
+
S
-
BN GN YE
FAN
Factory settings
1 = 3 V
2 = 5 V
3 = 7 V
4 = 9,5 V
G23 LED
Ventilation control panel
Electrical connection
CAUTION
If the fan is
used as the
ventilation unit
of the apartment,
speed 1 must not
be adjusted so
that the fan does
not start.
5 V, 7 V, and 9.5 V.
Please note! Do not set the control
voltage so low that the fan does not stop (approx.
1.5 V).
An example of air flow adjustment:
The standard ventilation is adjusted by using speed 2 and
with the damper closed.
• Set the control panel to speed 2 and measure the air
flows from the valves.
• If the total air flow is too low, increase the control
voltage from potentiometer 2.
• If the total air flow is too high, decrease the control
voltage from potentiometer 2. Do not choke the air flow
unnecessarily by using valves!
• Adjust the Away air flows similarly by using speed 1
(potentiometer 1).
• Adjust the Boost air flows similarly by using speed 3
(potentiometer 3).
• Speed 4 is usually reserved for the maximum speed.
Air flow dm³/s
Pressure P
a
0
50
100
150
200
250
300
350
400
450
500
550
0
10
20 30 40 50 60 70
80 90 100 110 120 130 140 150
One extract air duct in use
3 V
5 V
7 V
9,5 V
Sound power level in the suction duct
(one duct) by octave band Lw, dB
Adjustment position
Adjustment
position (V)
3
5
7
9.5
Frequency
of the
octave
of the
octave
band
Hz
63
59
69
77
82
125
55
66
75
80
250
48
61
70
76
500
42
51
60
66
1000
34
45
52
57
2000
18
31
40
46
4000
16
23
32
38
8000
20
22
32
39
L
W
, dB
61
72
80
85
L
WA
, dB (A)
44
56
65
70
Sound pressure level coming through the
envelope of the house extraction fan in the room
in which it is installed (10m² sound absorption)
Adjustment
position (V)
3
5
7
9.5
L
pA
, dB (A)
33
42
49
55
Sound values have been measured at the measurement points
of the facility curve (L) of the air fl ow graph. The values change
very little when the pressure loss in the ducts is low and the fan
settings remain unchanged. The sound values increase when the
pressure loss in the ducts increase.
SOUND VALUES
