Change the Custom mode settings

To change the Custom mode settings of the Vallox CFi ventilation unit:

  1. Press the Change mode button until the icon of the Custom mode appears on the display:
  2. Please wait until the main view of the Custom mode opens:

    The main view shows a summary of the mode information.

  3. Select Custom information:
  4. Select Edit.

    The setup screen for the mode timer function opens:

  5. Use the arrow buttons to turn the timer function on or off. The options are:
    • On — When the timer function is on, the selected ventilation mode is active for the period indicated by the timer.
    • Off — When the timer function is off, the selected ventilation mode is active until you change the mode (or the week clock changes the mode).
  6. Select Right arrow.

    The screen for setting the Custom mode duration opens:

  7. Use the Plus and Minus buttons to set the Custom mode duration in minutes. This value indicates the duration of the Custom mode, when the Custom mode is activated. The recommended duration is 15–30 min.
  8. Select Right arrow.

    The supply air flow control screen opens:



  9. Use the Plus and Minus buttons to set the supply air output.
    Tip:
    If you want to create temporary high pressure in the Boost mode, for example when a fireplace is lit or the cooker hood is used, increase the supply air output. Reducing the extract air output is not recommended.
  10. Select Right arrow.

    The extract air flow control screen opens:

  11. Use the Plus and Minus buttons to set the extract air output.
  12. Use the Plus and Minus buttons to adjust the temperature of supply air. The temperature range is +5°C – +25°C.

    The recommended temperature is +18°C, or a couple degrees cooler than the room temperature.

  13. Select OK.
The Custom mode settings have now been set.