[. . . ] USERS ARE ADVISED TO READ THIS MANUAL AND ALL THE INSTRUCTIONS IT CONTAINS BEFORE USING THE HOB. INSTALLATION MUST BE CARRIED OUT BY QUALIFIED STAFF IN COMPLIANCE WITH THE RELEVANT REGULATIONS. THIS APPLIANCE IS INTENDED FOR HOUSEHOLD USE AND COMPLIES WITH THE EEC DIRECTIVES CURRENTLY IN FORCE. THE APPLIANCE IS BUILT TO PROVIDE THE FOLLOWING FUNCTION: COOKING AND HEATING FOODS; ALL OTHER USES ARE TO BE CONSIDERED IMPROPER. [. . . ] For use with other types of gas, see section "5 Adapting to different types of gas". The gas intake connection has an external ½” gas thread (ISO 228-1). Connection with copper pipe: The connection to the gas supply mains must be made so that no stresses or strains of any kind are applied to the appliance. The connection can be made using the adapter unit D with two conical elements, always fitting the gasket C supplied. Connection with steel hose: use only continuous-wall stainless steel hoses compliant with the relevant regulations, and always fit the gasket C supplied between the fitting A and the hose E. When connecting with a hose, ensure that the total length of the pipeline is not more than 2 metres; also ensure that the hoses do not touch moving parts and are not crushed. 4. 1 Bottled gas connection Use a pressure regulator and make the connection to the gas cylinder in accordance with the relevant regulations. Make sure that the gas supply pressure is as stated in the table in point "5. 2 Adjusting for bottled gas". 4. 2 Room ventilation The appliance may only be installed in a permanently ventilated room as specified by the relevant regulations. The air flow into the room where the appliance is installed must be sufficient for proper gas combustion and room ventilation. The air intakes, protected by gratings, must be of suitable size (see relevant regulations) and located so that they cannot be even partially obstructed. The kitchen must be kept properly ventilated to disperse the heat and humidity produced by cooking processes: in particular, a window should be opened or the speed of any fans increased after prolonged use. 4. 3 Combustion gas discharge Combustion gases must be discharged by means of hoods connected to a flue with reliable natural draught, or a fan extraction system. An effective extraction system requires careful design by an authorised specialist, and must comply with the regulation distances and positions. After installation, the engineer must issue a certificate of compliance. 24 Instructions for the Installer 5. Adapting to different types of gas The operations described below must be carried out with the appliance not connected to the gas supply. The appliance is tested with G20 (2H) natural gas at the pressure of 20 mbar. If it is to be used with other types of gas, the burner nozzles have to be changed and the primary air flow adjusted. To replace the nozzles and adjust the burners, the hob skin has to be removed. Proceed as described below. 5. 1 Removing the hob skin Remove all the burner components in the numerical order shown below: • • Pull off all the knobs. 1 • Remove the hob skin fixing screws. 2 • After removing all the components described above, lift off the hob skin. Release all snap connections simultaneously (the hob is connected to the casing underneath in 5 points). Light the burner and turn it to the minimum Remove the knob again and adjust the regulator screw inside or beside the tap rod (depending on the model) until an even minimum flame is obtained. Put the knob back in place and check the stability of the burner flame (the flame must not go out when the knob is turned quickly from the maximum to the minimum setting). 5. 7 Adjusting the minimum for bottled gas To adjust the minimum level when using bottled gas, the adjuster screw inside or beside the tap rod must be turned fully clockwise (depending on the models). The diameters of the bypasses for each individual burner are stated in point “5. 2 Adjusting for bottled gas”. After adjusting for use of a gas other than the gas used for testing the appliance, replace the label on the casing with the label for the new gas. [. . . ] Use ordinary non-abrasive products for glass, with the aid of non-scratching sponges and wooden or plastic utensils if necessary. Rinse thoroughly and dry with a soft cloth or chamois leather. 8. 2 Cleaning the components Never clean the knobs with aggressive products containing alcohol or steel or glass cleaners, since they might cause permanent damage. The components described below must never be washed in a dishwasher. 8. 2. 1 The knobs The knobs must be cleaned with a soft cloth dipped in warm water and dried thoroughly. They can easily be lifted off. 8. 2. 2 The pan stands Remove the pan stands and wash them in warm water with a non-abrasive detergent, taking care to remove all deposits. [. . . ]