VALLOX 280 SE
INSTRUCTIONS FOR USE
3
DIGIT
SED
ELECTRONIC CONTROLLER
WITH LCD DISPLAY
1.4. Ventilation control with control panel
The control panel can be used for the following ventilation control functions:
Functions for adjusting ventilation power
• Starting and stopping.
• Power adjustment (8 positions).
• Setting the basic fan speed and the maximum fan speed. Ventilation power cannot be
set lower than the basic fan speed. When carbon dioxide and/or relative humidity
adjustments are activated, power cannot be adjusted higher than the set maximum fan
speed. When humidity and carbon dioxide adjustments are switched off, fan speed can
be raised to position 8 (factory setting). Maximum fan speed limitation can be selected
at the settings menu to be in operation permanently (see the instructions for using the
control panel, Section 2.3.6.).
• Adjusting power using the week clock control function.
Supply air temperature adjustment functions (post-heating unit is optional)
• Switching the electric post-heating unit on / off.
• Setting the desired supply air temperature (+10
°
C...+30
°
C).
• Selecting the method for controlling the desired supply air temperature (constant
temperature control, cascade control of temperature ).
• Setting the desired supply air temperature using the week clock control function.
Preheating (the preheating unit is optional)
• Setting the control temperature for the preheating unit (-6
°
C...+15
°
C exhaust air).
• Changing the setpoints.
There may be three control panels at most. When more than one control panel is used, the
unit can be adjusted at all the control panels.
© VALLOX • We reserve the right to make changes without prior notification.
CONTROL PANEL
CO
2
SENSOR (OPTION)
LON CONVERTER (OPTION)
%RH SENSOR (OPTION)
1. Use of ventilation
1.1. General use
For indoor air to stay healthy and beneficial also for the structures
of the dwelling, ventilation has to be in operation continuously.
It is not advisable to stop ventilation even for longer holidays,
because it makes indoor air stuffy. Also, during the heating season
indoor air humidity may condense in the ducts and structures and
therefore cause humidity damage. The sensors automatically
adjust ventilation to an optimal level even if the dwelling is empty.
1.2. Local use
During local use, make sure that ventilation is sufficient for both
occupants and structures. You have to ensure sufficient ventilation
also outside the occupation period. Also take into account possible
problems caused by the stopping of ventilation to both the unit
and structures.
1.3. Ventilation control
The unit can be fully controlled with the control panel delivered
with the unit or with an optional LON converter.
The standard week clock control can be used to control the fan
power of the unit and the setpoint for supply air temperature.
Furthermore, demand controlled ventilation can be adjusted with
optional carbon dioxide and humidity sensors.
The fan power of the unit can also be controlled with a voltage
or current signal.
