Bosch Appliances DKE 73, DKE 63 Operating Instructions, Appliance description, Operating modes

Operating Instructions
Appliance description
	Chimney
	panelling
	Light / fan
	switches
Filter grille	Lighting

Operating modes

Exhaust-air mode:

❑The extractor-hood fan extracts the kit- chen vapours and conveys them through the grease filter into the atmosphere.

❑The grease filter absorbs the solid particles in the kitchen vapours.

❑The kitchen is kept almost free of grease and odours.

DWhen the extractor hood is operated in exhaust-air mode simultaneously with a different burner which also makes use of the same chimney (such as gas, oil or coal-fired heaters, continuous-flow heaters, hot-water boilers) care must be taken to ensure that there is an adequate supply of fresh air which will be needed by the burner for combustion.

Safe operation is possible provided that the underpressure in the room where the burner is installed does not exceed 4 Pa (0.04 mbar).

Operating modes

This can be achieved if combustion air can flow through non-lockable openings, e.g. in doors, windows and via the air- intake/exhaust-air wall box or by other technical measures, such as reciprocal interlocking, etc.

If the air intake is inadequate, there is a risk of poisoning from combustion gases which are drawn back into the room.

An air-intake/exhaust-air wall box by itself is no guarantee that the limiting value will not be exceeded.

Note: When assessing the overall requirement, the combined ventilation system for the entire household must be taken into consideration. This rule does not apply to the use of cooking appliances, such as hobs and ovens.

Unrestricted operation is possible if the extractor hood is used in recirculating mode

– with activated carbon filter.

Circulating-air mode:

❑An activated carbon filter must be fitted for this operating mode (see Filters and maintenance).

The complete installation set and replacement filters can be obtained from specialist outlets.

The corresponding accessory numbers can be found at the end of these operating instructions.

❑The extractor-hood fan extracts the kitchen vapours which are purified in the grease filter and activated carbon filter and then conveyed back into the kitchen.

❑The grease filter absorbs the grease particles in the kitchen vapours.

❑The activated carbon filter binds the odorous substances.

If no activated carbon filter is installed, it is not possible to bind the odorous substances in the cooking vapours.

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