Ariston Manual Products FHYGGX | Page 5

If an electric extractor fan for the removal of foul air is installed in the room, the apertures provided for air changes must allow a ventilation rate of at least 35m 3 /h per kW of power installed. GAS CONNECTION The oven is designed to operate with both natural gas (methane) and liquid gas (LPG), and can be easily converted from one type to another following the instructions given in the relative section of this booklet. Connection to the gas supply must be carried out by qualified technicians and in conformance with the requirements. If the appliance is to operate with gas bottles (LPG), a pressure regulator conforming to the requirements. ! Should you need to install a gas hob on top of a built-in gas oven, it is strictly forbidden to connect the two or to use a single cut-off tap. The two appliances should be connected separately, and each one should have its own stop tap in order to make them completely independent from one another (see figures). NO OK RIGID PIPE CONNECTION Connection to the mains gas supply may be made via a rigid pipe firmly attached to the fitting “G”, or via a flexible stainless steel continuous-wall hose, conforming with a maximum length of 2 metres.The fitting “G” and seal “C” are supplied with the appliance, and comply with standards. Important: Use two wrenches to turn the fitting “G” to the required position. When the fitting is in the desired position, firmly tighten nut “A”. CONVERSION TO A DIFFERENT TYPE OF GAS Before converting the appliance for operation with a different gas type, check which type of gas it is currently set to operate with (adhesive label on appliance). Disconnect the electrical power supply to the appliance; For the correct nozzle diameter, refer to the relative table in this booklet. Replacing the lower burner nozzle 1) Remove the burner cover (see “REMOVAL OF THE BURNER COVER PLATE”). 2) Remove the screw securing the oven burner and withdraw the burner from the support together with the heat sensor and the ignition spark plug. WARNING - IMPORTANT: after connecting the appliance to the gas supply (or to the liquid gas bottles) CHECK FOR LEAKS at the union using a solution of soapy water (never use a naked flame). Connection with a rigid pipe (copper or steel) ! Connection to the gas system must be carried out in such a way as not to place any strain of any kind on the appliance. There is an adjustable L-shaped pipe fitting on the appliance supply ramp and this is fitted with a seal in order to prevent leaks. The seal must always be replaced after rotating the pipe fitting (the seal is provided with the appliance). The gas supply pipe fitting is a threaded 1/2 gas cylindrical male attachment. 3) Remove the nozzle using a 7 mm box wrench. 3 GB