Two manifold boxes are connected to the ventilation unit, one to supply air and one to extract air respectively. Sound absorbing connections are established between the ventilation unit and the manifold boxes by means of e.g. Soundflex tubes. This prevents noise from the ventilation fans from travelling through the dwelling.
The manifold boxes are connected to extract air and supply air valves using flexible NilAIR tubes. One, two or three tubes run to each valve depending on the air volume required for ventilation.
The boxes are mounted using 25 mm soundproofing material that ensures that limited noise is transmitted to the tubes.