Risk of injury from falling unit if
installed incorrectly. Only install on
ceilings with sufficient load-bearing capacity
(solid wall with at least 200 kg/m³) and with
mounting material of a sufficient dimension.
Mounting material is to be supplied by the
customer.
Risk of injury and risk to health from
parts which may affect the ventilation
system which are added or modified at a
later date. Parts (range hood, air-ven-
tilated 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 established/en-
sured by a planning office. If using an exhaust
air range hood or air-ventilated fireplace,
this must be accepted by a regional master
chimney sweep.
Risk when using accessory compo-
nents which have not been approved.
The ventilation unit is tested and approved
with original accessory components.
Retrofitting (bypass, PTC heat register,
heat exchanger etc.) is only permitted with
original components.
Note space needed for additional compo-
nents (tubular sound absorber, supplementary
heating etc.).
Other modifications and alterations to the
unit are not permitted and release the manu-
facturer from any guarantee and liability.
Risk of injury from damaged venti-
lation units. Switch the ventilation
units off immediately if you discover damage
or faults that could endanger persons or pro-
perty. Prevent the unit from being switched
back on until it has been fully repaired.
Danger of electric shock.
Before removing the front cover and
installing the electrics, switch off all supply cir-
cuits and secure them against being acciden-
tally switched back on again. Attach a warning
sign in a clearly visible place.
7 Safety instructions and warnings | UK
Danger from electric shock, fire or
short-circuiting when failing to comply
with the relevant regulations for electrical
installations.
Do not perform any tasks on live parts.
Be sure to observe the relevant regulations
for electrical installation; e.g. DIN EN 50110-1,
in Germany this is particularly VDE 0100, with
the corresponding parts.
Comply with the electrotechnical safety
regulations (disconnect from voltage, secure
against being accidentally switched back on,
ensure de-energisation and cover or block off
neighbouring live components.
A mains isolation device with contact
openings of at least 3 mm at each pole is
mandatory.
Only connect the unit to a permanent elec-
trical installation.
The units may only be operated using the
voltage and frequency shown on the rating
plate. Make electrical connections according
to wiring diagram.
Avoid touching components.
Maintenance and fault finding only permis-
sible when carried out by trained specialists.
Risk of injury from running fans when
removing the front cover.
Before removing the front cover, wait until
both fans have stopped.
Risk of burning from hot housing
parts on units with PTC heat register
when removing the front cover.
After removing the front cover, do not touch
the heat register. First wait until the heat re-
gister and the housing parts have cooled off.
Risk of death from toxic air near-
by containing pollutants (smoke,
vapours) – in the event of a fire or chemi-
cals accident etc.
Switch the entire ventilation system off
immediately until the outside air is safe again.
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