6Burner minimum maximumdiameter diameterTriple-crown (ultra-rapid) 160 mm 260 mmLarge (rapid) 160 mm 240 mmMedium (semi-rapid) 120 mm 220 mmSmall (auxiliary) 80 mm 160 mmAs soon as a liquid starts boiling, turn down the flame so that it will barely keep theliquid simmering.If you use a saucepan which is smaller than the recommended size, the flame willspread beyond the bottom of the vessel, causing the handle to overheat.Take care when frying food in hot oil or fat, as the overheated splashescould easily ignite.If the control knobs become difficult to turn, please contact your local Service ForceCentre.)Hob burners control knobsThe symbols on the knobs mean that :z there is no gas supplythere is maximum gas supplythere is minimum gas supplyLighting the burnersFor easier lighting, proceed before putting a panon the pan support.To light a burner:z turn the relevant knob anticlockwise to maximum position( ).z Upon ignition, keep the knob pushed down about 5seconds. This will allow the "thermocouple" (Fig. 1 -letter D) to be heated and the safety device to be switchedoff, otherwise the gas supply would be interrupted.z Then adjust the flame as required.If the burner does not ignite, turn the control knob to zero, and try again.When switching on the mains, after installation or a power cut, it is quite normal for the sparkgenerator to be activated automatically.In the absence of electricity, ignition can occur without the electrical device; in this case,approach the burner with a flame, push the relevant knob down and turn it anti-clockwiseuntil it reaches the “maximum” position.To ensure maximum burner efficiency, you should only use pots and pans with a flatbottom fitting the size of the burner used (see table).OperationFig. 1A - Burner capB - Burner crownC - Ignition electrodeD - Thermocouple