1�8 Ducts - Swegon CASA r85 Installation, Operation And Maintenance Manual

If the upper kitchen bypass is used in such a way that the ven-
tilation unit and the cooker hood are installed separately, you
must place an order for a modular cable (optional equipment)
of sufficient length� Connect the Premium cooker hood to the
control panel with a modular cable� There is a cable outlet on
top of the ventilation unit and another one at the bottom of
the unit behind the cover plate�
If the cooker hood is installed below the ventilation unit, con-
nect the modular cable and the cooker hood's power supply
cable to the terminal connections inside the bottom of the
ventilation unit�
The diameter of the modular cable wiring tube should be at
least ∅ 20 mm�
In general, only systems, which are controlled from a cooker
hood, have a separate Home/Away switch by the front door of
the home� The switch starts the Away function in the ventila-
tion unit�
The connection of possible optional equipment is described
in the wiring diagram in Section 7, Technical data� The cables
for the optional items of equipment are not included in the
supply�
1.8 Ducts
Install the air ducts, sound attenuators, supply air diffusers, air
intake grilles and exhaust air ducts as shown in the ventilation
drawings� To prevent the propagation of sound, do not install
the ducts directly against structural building elements�
Insulate the air ducts in order to reduce loss of heat or cooling
energy and to prevent water from condensing on surfaces�
In addition, it is advisable to insulate the ducts to prevent the
spread of fire�
In general, ventilation ducts are insulated in the following
manner:
• Outdoor air ducts are insulated in warm spaces and in attics
that are used�
• Exhaust air ducts should always be insulated in accordance
with national regulations� See separate project planning in-
structions (for example Fire resistance classification require-
ments)�
• 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 surroundings,
the insulation should be protected by a moisture barrier�
It is essential that the ventilation
ducts are clean in order for the ventilation
unit to operate as it should.
The ventilation ducts should be cleaned
regularly and always when the home is
renovated.
The supply air duct should be fitted
with acoustic insulation along the stretch
between the unit duct outlet and the
sound attenuator, so that fan sound will
not be propagated out into the room.
10 www�swegon�com
Connection and modular cables to the cooker hood wired
below the ventilation unit (cover removed)
To dismantle the front plate on a Premium control panel.
To connect the modular cable. The extra contact is used for
connection of an extra control panel.
If the modular cable is lengthened
within some building element (e.g. a wall),
the cable should be lengthened in a ∅
20 mm conduit, bearing in mind a possible
later change of cabling.
Swegon reserves the right to alter specifications.
R85B.161012
The cooker hood's
outlet connection
spigot (cover
removed)