[. . . ] Operating and Installation Instructions Ventilation System DA 5321 W DA 5381 W DA 5391 W To prevent accidents and appliance damage, read these instructions before installation or use. en - US, CA M. -Nr. 36 2 IMPORTANT SAFETY INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS Keep these instructions in a safe place and pass them on to any future user. Read these instructions carefully before installing or using the Ventilation System. Use the appliance only for its intended purpose. , WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: ~ a) Use this appliance only in the manner intended by the manufacturer. [. . . ] The indicator for the charcoal filter and one of the "­/+" indicators will flash. If the procedure is not stored within 4 minutes of programming, the hood will automatically default to the "old" data. 16 Cleaning and Care , WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: Before cleaning or servicing the hood, disconnect it from the power supply, see "Important Safety Instructions". Avoid: ­ cleaning agents containing soda, acids or chlorides, ­ abrasive cleaning agents e. g. pot scourers or sponges which have been previously used with abrasive cleaning agents. These will damage the surface. Cleaning the casing Never use abrasive cleaners, scouring pads, steel wool or caustic (oven) cleaners on the hood. ^ All external surfaces and controls can be cleaned with a mild solution of warm water and liquid dish soap applied with a soft sponge. ^ Glass surfaces can be cleaned using a glass cleaner. The following instructions for cleaning "Stainless steel" surfaces and "Stainless steel colored controls" should be followed in addition to the general "Cleaning the casing" instructions. Stainless steel Stainless steel surfaces can be cleaned using a non-abrasive stainless steel cleaner. To help prevent resoiling, a conditioner for stainless steel can be applied. Stainless steel colored controls These controls may become discolored or damaged if not cleaned regularly. Do not use a stainless steel cleaner on these controls. 17 Cleaning and Care Grease filters The reusable metal grease filters remove solid particles from the vented kitchen air (grease, dust, etc). ^ In a dishwasher: place the filter vertically in the lower basket, making sure that the spray arm is not blocked. Depending on the detergent, cleaning the grease filters in a dishwasher may cause permanent discoloration of the filter surface. ^ While the filters are removed, clean any dirt or grease from the filter casing to prevent the risk of fire. Lower the filter 45°, 2, unhook it at the rear, 3, and take it out. Cleaning the grease filter ^ By hand: use a scrub brush with a solution of warm water and mild detergent. Do not use the pure detergent, aggressive all purpose cleaners, oven sprays, abrasive cleaning agents or limescale removers. They could destroy the filter. 18 The grease filters should be cleaned every 3 - 4 weeks or when the grease filter indicator lights. , A dirty filter is a fire hazard. When putting the grease filters back make sure that the locking clips are visibly facing the cooking surface. If the filters are incorrectly installed, insert a small screwdriver into the slit along its edge to disengage it from the casing. ^ After returning the grease filters, press and hold the grease filter button for 3 seconds to reset the timer. ^ If the grease filters are cleaned before the grease filter timer has reached its maximum, press the grease filter button for 6 seconds to reset the counter to zero. Cleaning and Care Active charcoal filter In recirculation mode an active charcoal filter must be used in addition to the grease filters. The active charcoal filter will be replaced in the canopy above the grease filters. Before using: ^ Program the charcoal filter timer, see "Operation / Reprogramming the charcoal filter timer". Replace the active charcoal filter when the charcoal filter indicator lights, at least every 6 months or when they no longer absorb odors efficiently. [. . . ] Exhaust ducting and connections Use smooth or flexible pipwork made from approved non-flammable materials for exhaust ducting. To achieve the most efficient air extraction and quietest noise levels, consider the following: ­ The diameter of the ductwork should not be less than 6" (150 mm). ­ If flat ducting is used, the cross section must not be smaller than the cross section of the ventilation exhaust. ­ Where the ductwork is horizontal, it must slope away from the hood at least 1/8" per foot (1 cm per meter) to prevent condensation dripping into the appliance. [. . . ]