4 Safety instructions
31
DANGER Danger if the relevant regula-
tions for electrical installations are not ob-
served.
Before removing the housing cover or removing
the fan insert and before installing the electrics,
switch off all supply circuits, switch of mains fuse
and secure it against being accidentally switched
back on again. Attach a warning sign in a clearly
visible place.
Be sure to observe the relevant regulations for
electrical installation; e.g. DIN EN 50110-1. In
Germany, particularly observe VDE 0100, with
the corresponding sections.
A mains isolation device with contact openings of
at least 3 mm at each pole is mandatory.
Only connect unit to permanently wired electrical
installation and with NYM-O or NYM-J cables,
depending on the unit variant, 3 x 1.5 mm² or 5 x
1.5 mm².
Units may only be operated using the voltage and
frequency shown on the rating plate.
Unit may be energized even when at a standstill
and may switch on automatically due to sensors
(time delay, humidity etc.). Maintenance and fault
finding only permissible when carried out by qual-
ified electricians.
The degree of protection stated on the rating
plate is only guaranteed if installation is under-
taken correctly and if the connecting cable is cor-
rectly guided through the stepped grommet (The
grommet must completely enclose the cable
sheathing). The fan insert must also be engaged
and the housing cover installed.
DANGER Danger due to fire transmission
if an incorrect connection duct is connected to the
housing. Always use the correct cable material
for the respective housing.
if an incorrect ceiling compound is used for ex-
haust air systems with an intermediate ceiling
(ceiling barrier system)
. Ensure that the gap re-
maining between the main duct and wall or ceil-
ing is fully sealed with non-flammable materials
resistant to deformation, such as concrete, ce-
ment mortar or plaster.
WARNING Risk to health if filters are not
replaced or if there are no air filters.
Heavily soiled or moist air filters can accumulate
harmful substances (mould, germs, etc.). This
may also happen if the unit is shut down for an
extended period. If the air filter is missing, the
unit and air ducts become soiled.
Never operate the unit without air filters.
Only use original filters.
Regularly change air filter when a filter change is
indicated (LED or TimeStrip).
If the unit has not been used for a long time, al-
ways replace the air filters.
WARNING Risk of injury when working at
heights.
Use appropriate climbing aids (ladders).
Stability should be ensured, if necessary have
the ladders steadied by a 2nd person.
Ensure that you are standing securely and can-
not lose your balance and that there is no one
under the unit.
WARNING Risk of injury and risk to
health from parts which may affect the ventil-
ation system which are added or modified at a
later date.
Parts (range hood, air-ventilated fireplace etc.)
which are added or modified at a later date may
result in health risks and operation which is not
permitted. Parts may only be added or modified
at a later date if system compatibility is estab-
lished/ensured by a planning office. If using an
exhaust air range hood or air-ventilated fireplace,
this must be accepted by a regional master chim-
ney sweep.
WARNING Risk of injury and health risk
in the event of changes or modifications or if
components which are not permitted are
used.
The unit may only be operated with original com-
ponents. Changes and modifications to the units
are not permitted and release the manufacturer
from any guarantee obligations and liability,
e. g.
if the housing is drilled at a point which is not
permitted
.
CAUTION Exercise caution when hand-
ling packaging materials.
Observe applicable safety and accident preven-
tion requirements.
Store packaging material out of the reach of chil-
dren (risk of suffocation).
