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Important notes about the extraction mode
WARNING:
Risk of poisoning from exhaust gases sucked back! Never operate the
device in extraction mode simultaneously with an open flue appliance
when there is not adequate airflow guaranteed.
Open flue combustion equipment (for example, gas, oil, wood or coal-fired heaters,
tankless water heaters, water heaters) pulls combustion air from the room and runs
it through an exhaust pipe or chimney to the outside. In the extraction mode, indoor
air is removed from the kitchen and the adjacent rooms - without sufficient air intake
this creates a vacuum. Toxic gases from the chimney or extraction flue can thereby be
sucked back into the living spaces.
• Always ensure that a sufficient supply of fresh air is guaranteed and that the air can
circulate.
• An air supply / extractor box alone does not ensure compliance with the limit
value.
Safe operation is only possible when the negative pressure in the room where the
appliance is located does not exceed 4 Pa (0.04 mbar). This can be achieved when
the air required for combustion can flow through openings that are not closable,
for example in doors, windows, in conjunction with an air supply/ extractor box or
through other technical measures. In any case, consult a qualified chimney sweep who
can assess the entire ventilation of your house and propose appropriate measures for
adequate ventilation.
If the hood is used exclusively in the recirculation mode, unrestricted operation is
possible.
WARNING:
Fire hazard from flying sparks! Only install equipment on a fireplace
for solid fuels (for example, wood or coal), if a closed, non-removable
cover is available.
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