Cell bypass test

To test the operation of the heat recovery cell bypass flap:

  1. Select Settings:

  2. Use the arrow buttons to select Service menu:

  3. Select OK:

  4. Use the arrow buttons to select Cell bypass test:

  5. Select OK:

    The Bypass flap position display opens:

  6. Use the Select button to select the damper position. The options are:

    • (…) — The damper moves automatically.

    • Normal operation — The damper is in the winter position (closed) and the air flow passes through the heat recovery cell.

    • Bypass —The damper is in the summer position (open) and the air flow is directed past the heat recovery cell.

  7. Open the unit to ensure that the damper moves into the right position.

  8. Select Back:

  9. The cell bypass test is now complete.