7
W9
Smart
All rights to changes reserved.
2021-09-23
This item is available in sets of 3 pieces, for diameters:
100, 125 and 160 mm and are attached to the moisture
barrier with tape.
Cut up the openings with approx. 10 mm smaller diam-
eter than that of the ducts. Secure the mounting frame
in the ceiling with screws through the holes on the
sides. The plastic film of the vapour barrier should either
be stretched and fastened between the mounting frame
and the structural element of the building, or be taped
tightly against the mounting frame.
The thickness of the insulation and the nature of the
surface layer of the ventilation ducts vary depending on
insulation material, climate zone and national standards
in force. For this reason, Swegon does not offer any rec-
ommendations for insulation thickness. Most manufac-
turers of insulation material offer calculation programs
for the calculation of sufficient and correct insulation.
In renovation projects, it is advisable to examine the
existing ducts to determine whether they are sufficiently
and correctly insulated. Insulating in the right way is
necessary for the ventilation unit to operate correctly.
If
the ducts are uninsulated, even across a small area,
there is a high degree of risk of condensation and
indirect damage.
The supply air duct should be fitted with acoustic insula-
tion along the stretch between the unit duct outlet and
the sound attenuator, so that fan sound will not be
propagated out into the room.
In general, ventilation ducts should be insulated in the
following manner:
• Insulate outdoor air ducts run through warm spaces.
• Exhaust air ducts should always be insulated in ac-
cordance with national regulations. See separate pro-
ject planning instructions (for example Fire resistance
classification requirements).
• Insulate supply air ducts in cold spaces.
• Insulate extract air ducts in cold spaces.
• If the air inside the duct is colder than in the sur-
roundings; the insulation should be protected by a
vapour barrier.
Important
Even small gaps in the insulation impair
the sound attenuation and bring about
a risk of condensation and consequential
damages.
!
Important
Before commissioning the ventilation sys-
tem, check that the ventilation unit, filters,
condensation drain and ducts are clean and
that there are no loose objects inside them.
The ventilation ducts should be cleaned
regularly and always when the home is
renovated.
!
!
Important
It is absolutely forbidden to operate the
ventilation system during the construction
period or if dust-raising work is carried out.
Before installing the unit, the ducts should
be blanked off with covers to prevent the
entry of impurities.
!
!
