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 fl ue combustion equipment (for example, gas, oil, wood or coal-fi red 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 suffi cient air intake this creates a vacuum. Toxic gases from the
chimney or extraction fl ue can thereby be sucked back into the living spaces.
• A lways ensure that a suffi cient 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 fl ow 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 qualifi ed 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 fi replace for solid fuels
(for example, wood or coal), if a closed, non-removable cover is available.
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