[. . . ] As a result LPG cylinders, whether partially or completely full, must not be installed or stored in rooms or storage areas that are below ground level (cellars, etc. It is advisable to keep only the cylinder being used in the room, positioned so that it is not subject to heat produced by external sources (ovens, fireplaces, stoves, etc. Fitting the appliance Gas and mixed hobs are manufactured with type X degree protection against overheating. The following precautions must be taken when installing the hob: • Kitchen cabinets adjacent to the appliance and taller than the top of the hob must be at least 600 mm from the edge of the hob. [. . . ] Adapting to different types of gas To adapt the hob to a different type of gas other than default type (indicated on the rating plate at the base of the hob or on the packaging), the burner nozzles should be replaced as follows: 1. Unscrew the nozzles using a 7 mm socket spanner, and replace them with nozzles for the new type of gas (see table 1 “Burner and nozzle characteristics”). Reassemble the parts following the above procedure in the reverse order. Once this procedure is finished, replace the old rating sticker with one indicating the new type of gas used. The internal burner has a nozzle, the external burner has two (of the same size). Replace the nozzle with models suited to the new type of gas (see table 1). Remove the knob and adjust the adjustment screw, which is positioned in or next to the tap pin, until the flame is small but steady. Having adjusted the flame to the required low setting, while the burner is alight, quickly change the position of the knob from minimum to maximum and vice versa several times, checking that the flame does not go out. If the device fails to work when the burners are set to the low flame setting, increase this low flame setting using the adjusting screw. Once the adjustment has been made, replace the seals on the by-passes using sealing wax or a similar substance. If the appliance is connected to liquid gas, the regulation screw must be fastened as tightly as possible. To turn on one of the rings, press the relative knob in all the way and turn it anti-clockwise to the high setting . The burner is fitted with an electronic igniter that automatically starts when the knob is pressed in. Since the burner is equipped with a safety device, after lighting the burner keep the knob pressed in for about 2-3 seconds to allow the device which keeps the flame lit automatically to heat up. The selected burner can be regulated using the corresponding knob, as follows: • Off Maximum Minimum To switch off the burner, turn the knob in a clockwise direction until it stops (when reaches the “•” position). Ceramic Glass Module* This cooktop is fitted with dual-ring radiant heating elements located beneath the glass. It is possible to turn on only the circular part of the elemement (identified by the letter "A") or the cooking surface can be enlarged by turning on both "A" and "B". To turn only the circular "A" element, simply turn the knob in the clockwise direction to any one of the 12 available settings. In addition, the two burners can be used in tandem or speartely with cookware of different shapes and sizes: • Double burner for a fish-kettle or oval cookware (Fig. • Double burner for a griddle or rectangular/square cookware with minimum dimensions of 28x28 cm (Fig.  B) • Single burner for medium size cookware (diameter of 16-20 cm) (Fig. To obtain the best results from your hob: • Use flat-bottomed pans to ensure that they adhere to the cooking zone perfectly. [. . . ] 22 Maintenance and care Switching the appliance off Disconnect your appliance from the electricity supply before carrying out any work on it. Items, objects made of synthetic material, sugar or foods with a high sugar content that have melted onto the surface must be removed immediatley with a scraper while the cooking surface is still hot. Special cleaning products for ceramic glass surfaces form a transparent protective layer which fights diry buildup. This also protects the surface from damage caused by food with a high sugar content. [. . . ]