8 months ago

Next Evo X - UK Manual


INSTALLATION Before installing the appliance The appliance heats water to a temperature below boiling. It should be connected to a domestic water mains supply. Before connecting the appliance, it is necessary to perform the following operations: - Carefully wash the system piping in order to remove any screw thread or welding residues, or any dirt which might prevent the appliances from operating correctly. - Make sure that the appliance is set up for operation with the type of gas available (read the information on the packaging label and on the boiler data plate). - Make sure that there are no obstacles inside flue exhaust and that it does not contain any discharge from other appliances, unless the flue is meant to serve more than one user (in accordance with current legal requirements). - Where there is already a connection to existing flue exhausts, check that these exhausts have been perfectly cleaned and are without residues, because any disconnection could obstruct the passage of fumes and create potentially dangerous situations. - Make sure that, where unsuitable flue exhausts are attached, they have been ducted. - In areas with particularly hard water, limescale may build up on the components inside the appliance and reduce its overall efficiency. C-type appliance, with combustion chambers and air supply circuits which are completely sealed from the air outside, do not have any limitations concerning the ventilation and size of the room in which they are installed. So that the normal operation of the appliance is not compromised, the place in which it is installed must be suitable with regard to the operating limit temperature value and the appliance should be protected so that it does not come into direct contact with atmospheric agents. The appliance must be installed on a solid, noncombustible, permanent wall to prevent access from the rear. When creating a space for the boiler, the minimum distances (which ensure that various parts of the appliance may be accessed after it has been installed) should be respected. WARNING No flammable items should be left in the vicinity of the appliance. Make sure the installation site and any systems to which the appliance must be connected are fully compliant with the current applicable legislation. If dust and/or aggressive vapours are present in the room in which it is to be installed, the appliance must operate independently of the air inside the room. WARNING The installation and first ignition of the appliance must be performed by qualified personnel in compliance with current national regulations regarding installation, and in conformity with any requirements established by local authorities and public health organisations. Installation location Observe the regulations in force, when deciding where to install the device. The device must not be installed near heat sources Do not install the device in environments where temperatures may reach 0°C For installation inside furniture, consider that the maximum temperature of the device jacket is lower than 85°C and distances required for maintenance must be respected. Minimum clearances In order to allow easy access to the appliance for maintenance operations. The appliance must be installed in accordance with the clearances stated below. 14 /

INSTALLATION Gas connection The appliance was designed to use gases belonging to the categories as shown in the following table. COUNTRY MODEL CATEGORIES GB NEXT EVO X 11 SFT NEXT EVO X 16 SFT I3B/P II2H3P Make sure, using the labels on the packaging and the data plate on the appliance itself, that the appliance is in the correct country and that the gas category for which the appliance was designed corresponds to one of the categories available in the country where it will be used. The gas supply piping must be created and measured out in compliance with specific legal requirements and in accordance with the maximum power of the appliance; you should also make sure that the shut-off valve is the right size and that it is connected correctly. Before carrying out the installation, it is recommended that the fuel pipes are cleaned thoroughly in order to remove any residues which could prevent the appliance from operating correctly. Check that the supplied gas corresponds to the type of gas for which the appliance was designed (see the data plate located on the appliance itself). It is also important to check that the pressure of the gas (methane or LPG) you will be using to feed the appliance is suitable, because if it is insufficient the power of the generator may be reduced, causing inconvenience for the user. Water connection The illustration shows the connections for the water and gas attachments of the appliance. Check that the maximum water mains pressure does not exceed 8 bar; if it does, a pressure reducing valve must be installed. Ensure that the minimum pressure is not lower than 0,2 bar. View of the hydraulic Connections A A A A B B B B G G C C C C A. Hot water outler 1/2” B. Gas inlet 1/2” C. Cold water inlet 1/2” G. Drain valve THE GAS WATER HEATER DOES NOT HAVE PRESSURE RELIEF FUNCTION. AN EXTRA PRESSURE RELIEF DEVICE IS NEEDED IF THIS FUNCTION IS NEEDED. The device is equipped with a filter “G”, located on the cold water entrance. Periodically clean the hydraulic system, if dirt is present. IMPORTANT! DO NOT ACTIVATE THE DEVICE WITHOUT THE FILTER. IMPORTANT! IF THE UNIT IS INSTALLED IN AREAS WITH THE PRESENCE OF HARD WATER (> 200 MG / L) IS NECESSARY TO INSTALL A WATER SOFTENER TO REDUCE THE PRECIPITATION OF LIMESTONE IN THE HEAT EXCHANGER. THE WARRANTY DOES NOT COVER DAMAGE CAUSED BY THE LIMESTONE. / 15


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