b'SAFETY EN1 .4Requirements for personnel or operatorsCAUTIONIt may be hazardous to assign activities to personnel that are not sufficiently qualified. It may CAUTION harm the operators themselves if they perform manoeuvres or operations incorrectly, with a serious impact on personal safety, things and property.CAUTIONInstallation, commissioning and maintenance activities must only be carried out by the personnel CAUTION of dedicated heating companies specifically qualified to perform these tasks.CAUTIONOperators should explain to the proprietor and person responsible for the domestic heating CAUTION system the burner is installed on, the importance of ensuring good inflow of combustion air and combustion product evacuation. They should also highlight that no modification should be made to the heating system (comprised of air intake, burner, boiler and flue pipe) that could alter the correct operation of the system.1 .5Primary hazards The following indications refer to residual risks, which must be highlighted for the full understanding and responsibility of the proprietor, users and operators.These risks derive from risk analyses carried out by Research and Development staff as required by European Standard EN 267 and applicable directives (Machine directive, LVD, EMC).DANGERDanger of death!- Contact with live electrical components may cause serious incidents.- Only professionally-trained and qualified personal can operate on the electrical system.- Before any operation, switch off the power supply to the system by operating the main switch. Check there is no power and ensure restart is impossible.- In the event of damage to the electrical insulation on the product, act immediately to restore the correct level of insulation.CAUTIONHot surfaces - Risk of burns!- Contact with components at high temperatures may cause more or less serious superficial burns.- Operators should wear suitable clothing and personal protective equipment.- They should ensure that all components are at ambient temperature before carrying out any maintenance operations.FUEL LEAKS- Fuel leaks may cause fire to break out.CAUTION - They may be toxic via inhalation and cause skin irritation.- Act swiftly to remove the cause of the leak. If it is connected to a maintenance operation, use the dedicated personal protective equipment.7/64'