Scrolling up
With this button, you can scroll the displays
upward.
Scrolling down
With this button, you can scroll the displays
downward.
Increase button
With this button, you can increase values.
Decrease button
With this button, you can decrease values.
Start button
With this button, you switch the unit on and off. When
the indicator is lit, the unit is on.
Carbon dioxide adjustment
With this button, you set carbon dioxide adjustment on
and off. When the indicator is lit, the adjustment is on.
Humidity adjustment
With this button, you set humidity adjustment on and
off. When the indicator is lit, the adjustment is on.
Post-heating
With this button, you set post-heating on and off. When
the indicator is lit, post-heating is on. The summer
function is active when the indicator is not lit.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1.2. Operating
menu
1.1. Keyboard
Fan speed
Supply air temperature (21
°
C)
Post-heating on
Filter guard alarm
Maintenance reminder alarm
Fireplace / booster switch on
In order to move the control panel to the settings menu, press the + and - buttons
simultaneously.
In the settings menu, you can change setpoints for the ventilation unit.
The content display shows humidity and carbon dioxide content. The corresponding
sensors required (options).
The temperature display shows the temperatures of outdoor air, indoor air, supply air
and exhaust air. The accuracy of the temperature sensors is
±
2
°
C.
Supply air temperature setting is changed with the + and - buttons.
1.2.1.
Main display and change of fan speed
1.2.2.
Moving to the settings menu
1.2.3.
Content display
1.2.4.
Temperature display
1.2.5.
Setting supply air temperature
To settings menu
Press + and -
RH1 35% RH2 40%
CO2 0821 PPM
Out 20 In 20
Sup. 20 Exh. 20
Temp. setting
20C
21 C
You can change fan speed in this play with the + and - buttons.
(See Section 1.1., legend numbers 7 and 8 in the figure).
The displays of the operating menu (Sections 1.2.1.–1.2.5.) can be scrolled with the scrolling buttons.
(See Section 1.1., legend numbers 5 and 6 in the figure).
VALLOX 252 D
6
Power failure
After a power failure, the unit starts at minimum fan speed. The adjustments and setpoints
chosen will remain in the memory of the unit in spite of the power failure.
1. Control
panel
INSTRUCTIONS FOR USING THE CONTROL PANEL
