Installation

As far as possible, install the EFR Flatbox such that there is no transfer of vibrations to the ducting system, e.g. by using Maico ELR flexible cuffs and vibration dampers.

  1. Make sure there is a level surface at the installation location.
  2. Position the mounting bracket and mark the locations of the four holes that have to be drilled.
  3. Drill the holes and insert fixing plugs.

  4. Danger of injury caused by inadequate mounting of the device!

    1. Make sure you use mounting material, which is sized for the purpose.
  6. Bolt or screw the mounting bracket to the wall/ceiling/bracket using suitable mounting material to be supplied by the customer.
  7. Insert the EFR Flatbox in the cut-outs in the mounting bracket and fix it in place. Tighten both knurled thumb screws.
  8. Install suitable folded spiral-seams duct.
  9. Make sure that the ducting is not twisted during installation.