Housing

Damage to unit/functional problems in the event of rubbing impeller.

  1. Do not fit flange sleeve either twisted or crushed.
  2. Make sure that the surface is flat.
  1. Check rear of housing for the presence of a sealing ring and check that it is properly positioned.
  2. ECA piano STANDARD, ECA piano TC: If necessary, use auxiliary materials (e.g. foam strip) for fixing in wall or duct. When doing so, maintain a minimum distance of 20 mm to the end of the socket! Do not tape over the attachment of the shutters (arrow).
    ECA piano H: Attach foam strip as described above. This is important so that the unit cannot draw in air from the outside.