This will eliminate any “newness" smells and soiling (see chapter entitled “Cleaning and care"). 1.3 About use The appliance is intended solely for use in the household and must not be put to any other uses. Use the appliance to prepare meals only. It must not be used to heat up the room in which it is installed. Use of a gas cooker generates heat and humidity in the room where it is installed. This is why attention must be paid to good kitchen ventilation. The natural ventilation openings must be kept unobstructed. Prolonged use of the appliance with several or all rings may call for additional ventilation such as opening a window or a door, or stronger air extraction by an extractor hood. To guarantee good combustion, the room in which the appliance is installed must have a minimum volume of 10 m3 and must possess a door that opens outdoors or a window that can be opened. Only ever use the burners after placing pots and pans on them. Do not heat up any empty pots or pans; this may result in a build-up of heat. Use pots and pans with thicker bottoms because heat distribution is particularly improved in the low setting. The better the size of pots and pans is adapted to the burner size, the better the heat of the gas flame will be exploited and the more costs will be saved. Cooking vessels with curved bottoms, e.g. woks, must not be used. It is not permitted to use roasting pans, frying pans or grill stones heated simultaneously by several burners because the resulting heat build-up may damage the appliance. Switch the burners to the low setting whenever you remove pots or pans briefly. In this way, you reduce the risk of burns when working next to naked flames; you also save gas and reduce pollution. Whenever the gas hob is fitted under a vapour extractor hood, always cover the rings with pots or pans. Otherwise, parts of the vapour extractor hood may become damaged by the extreme heat development or grease residues in the filter may ignite. Ensure an adequate supply of air when using a vapour extractor operating in the exhaust air mode. After igniting, keep the control knob pressed for around 5-8 seconds more because the heat sensor that opens the gas channel has to warm up first. In the event of a power failure, you can also ignite the unit with matches or any other ignition aid. The thermal protection facility that prevent gas from flowing out in the open position functions without restriction. Pots with a diameter of less than 90 mm (317/32”) or more than 220 mm (85/8”) should not be used. When using larger pots, pay attention to keeping to a minimum distance of 50 mm (2”) between the cooking vessel and combustible surroundings. A minimum distance of 15 mm (19/32”) must be observed between the control knob and the pot or pan. In the event of malfunctions, contact your specialist dealer or your responsible Gaggenau after-sales service. Tip: When buying pots, pay attention to the fact that the manufacturer frequently specifies the top pot diameter, which is generally larger than the diameter of the base. Observe the manufacturer's specification! Use cooking utensils that the manufacturer states as being “suitable for gas". Preferably use the larger cooking zone for brief cooking, deep fat frying and brief frying of large quantities. Preferably use the smaller ring for soaking, warming up and keeping warm, even when large quantities are involved. 2.1 Structure 2.2 Special accessories 1 High-power burner B 9500 BTU (2.8 kW) 2 Normal burner A 6500 BTU (1.9 kW) 3 Pot support 4 Control knob for the front cooking position 5 Control knob for the rear cooking position 6 Burner cover 7 Burner head 8 Spark plug for automatic ignition 9 Thermal sensor for flame monitor You can order the following special accessories: – VV 200-000: Connecting strip – VD 201-010: Appliance cover (If an appliance cover is fitted, the pot support must be removed when closing.) 7 2. Structure and operating principle 6 7 8 9 1 2 3 4 5 Fig. 2 Fig. 3 2.3 Operating principle The appliance features one-hand operation. That is to say, the ignition is activated when the control knob is pressed briefly. After igniting, keep the control knob pressed for around 5-8 seconds more because the heat sensor that opens the gas channel has to warm up first. The gas hob has 1 normal burner (front burner) and 1 high-intensity burner (rear burner). All burners have a thermal protection device that prevents unburned gas from escaping in the open position. The total rated thermal load amounts to: 16000 BTU (4.7 kW) referred to Hs* (gross calorific value) 14300 BTU (4.2 kW) referred to Hi (calorific value) The specified rated load is defined by installation of the fixed nozzles. The gas hob is converted to a different gas type by nozzle replacement (full and low-burning nozzles) (see nozzle table on p. 12). The symbols on the control panel mean: 0 Off High setting Low setting The flame is infinitely variable between high and low-setting. Maintenance Instructio...