DIGIT
SED
ELECTRONIC CONTROLLER
WITH LCD DISPLAY
VALLOX 90 SE
4
INSTRUCTIONS FOR USE
2. Instructions for using VALLOX 90 SE
For indoor air to stay healthy and beneficial also for the structures of the dwelling, ventilation
has to be in operation continually. 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.
2.2. 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.
2.3. 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 maximum fan speed. When humidity and carbon dioxide adjustments are
switched off, fan speed can be raised to speed 8.
Supply air temperature adjustment functions (post-heating radiator is optionai)
• 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 ).
Preheating
• 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 two or more control panels are used,
the most recent control function is valid.
2.1. Making the unit ready for operation
1. Connect the plug to the mains supply. VALLOX 90 SE is now ready for operation.
2. Turn the unit on and choose a suitable power of ventilation at the control panel. There
are either one or more control panels. See the instructions for using the control panel in
sections 3.2. 1. and 3.2.2.
In normal conditions
basic ventilation
with change of air every two hours is sufficient in living
areas. Boosting is needed during for example sauna baths, cooking, clothes washing or
family parties. If a carbon dioxide and/or humidity sensor is installed in the system, VALLOX
90 SE will also take care of demand controlled ventilation.
Summary of Contents for 90 SE Series
Page 17: ......
