Bosch DBB66AF50 Gebrauchsanleitung Seite 23

gases from the flue or the extraction shaft are sucked back
into the living space.
▶ Always ensure adequate fresh air in the room if the appli-
ance is being operated in exhaust air mode at the same
time as a room air-dependent heat-producing appliance is
being operated.
▶ It is only possible to safely operate the appliance if the pres-
sure in the room in which the heating appliance is installed
does not drop more than 4 Pa (0.04 mbar) below atmo-
spheric pressure. This can be achieved whenever the air
needed for combustion is able to enter through openings
that cannot be sealed, for example in doors, windows, in
conjunction with incoming/exhaust air wall boxes or by
other technical means. An incoming/exhaust air wall box
alone does not ensure compliance with the limit.
▶ In any case, consult your responsible chimney sweep. They
are able to assess the house's entire ventilation setup and
will suggest the suitable ventilation measures to you.
▶ Unrestricted operation is possible if the appliance is oper-
ated exclusively in air recirculation mode.
WARNING ‒ Risk of fire!
¡ Fatty deposits in the grease filters may catch fire.
▶ Never operate the appliance without a grease filter.
▶ Clean the grease filters roughly every 2 months.
▶ Never work with naked flames close to the appliance (e.g.
flambéing).
Safety en
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