Genus EVO HP - Manual

installation The

installation The hydraulic system have to be dimensioned and complete with all accessories that ensure the smooth operation. In particular it is necessary to provide all protective equipment and safety requirements by law. GENUS PREMIUM EVO HP 85/100 is not provided with pump. Is necessary to install a pump into the heating circuit. The circulation pump available as a kit. GENUS PREMIUM EVO HP 85/100 Two speed circulation Pump Graph representing the available circulation pump pressure [mbar] 1000 900 800 700 600 500 400 85/100* 300 65 200 45 100 0 600 1000 1400 1800 2200 2600 3000 3400 3800 4200 4600 [l/h] * The circulation pump for Genus Premium Evo HP 85/100 and 115/150 is available as a KIT GENUS PREMIUM EVO HP 85/100/115/150 Modulating circulation Pump Warning For appliances connected to the water mains by detachable hose-sets shall state that the new hose-sets supplied with the appliance are to be used and that old hose-sets should not be reused. Excessive pressure device The excessive pressure device outlet must be connected to a drainage siphon which can be checked visually in order to prevent maintenance procedures causing harm to people, animals or property (the manufacturer shall not be held responsible for any such damage). Cleaning the heating system Where the boiler is used in conjunction with an older system, various substances and additives may be present in the water and these could have an adverse effect on the operation and durability of the new boiler. Before replacing the old boiler, you must arrange for the system to be cleaned thoroughly in order to eliminate any residue or dirt which could compromise the correct operation of the water heater. Make sure the capacity of the expansion vessel is suited to the amount of water contained in the system. Warning! The appliance is not equipped with an expansion vessel and must be connected by the installer. Warning The appliance is not equipped with a pressure safety device; install in accordance with the regulations in force. 14

installation Warning! It is advisable to install a suitably sized hydraulic separator (available as an accessory) between the boiler circuit and the heating circuit. Warning! It is advisable to install a filter on the system’s return pipe to prevent impurities or sludge from damaging the appliance. It is mandatory to add this filter when replacing return pipes on existing appliances. The manufacturer shall not be held liable for any damages to the appliance due to failure to install said filter. Discharge of condensation High energy efficiency produces some condensation which must be removed. To do so, use a plastic pipe placed so as to avoid the accumulation of any condensation inside the boiler. This pipe must be attached to a discharge siphon which can be checked when required. The standards governing installation currently in force in the country of installation must be respected, as must any local authority regulations or those issued by public health bodies. Check the positioning of the condensate discharge tube: - it must not be nipped when connected - it must not form a swan's neck - ensure that it is cleared using free air in the siphon For the evacuation of condensates, use only pipes which satisfy the relevant norms. As the condensates are acid (pH close to 2), all necessary precautions must be taken before any operation. Before the first time the equipment is used, the siphon must be filled with water. To do this, add approximately 1/4 litre of water via the burnt gas outlet before fitting the discharge device, or unscrew the siphon positioned underneath the boiler, fill it with water and refit it Warning! insufficient water in the siphon can cause the flue gas to be expelled into the surrounding ambient air Appliances with underfloor heating For appliances with underfloor heating, fit a safety thermostat onto the underfloor heating outlet. For the electrical connection of the thermostat see the section on “Electrical connections”. If the outlet temperature is too high, the boiler will stop both domestic hot water and the heating production and the error code 1 16 “underfloor thermostat open” will appear on the display. The boiler will restart when the thermostat is closed during automatic resetting. If the thermostat cannot be installed, the underfloor heating equipment must be protected by a thermostatic valve, or by a bypass to prevent the floor from reaching too high a temperature. System water characteristics Water should be suitably treated when its hardness exceeds 25° Fr, in order to avoid limescale from depositing in the boiler due to hard water, or corrosion due to aggressive water. It is useful pointing out that even deposits barely a few millimetres thick may cause considerable overheating of the generator walls due to their low thermal conductivity, thereby causing serious damage. It is fundamental to treat water used in large-scale systems (i.e. that use high volumes of water) or when the system is frequently refilled with water. In such cases, if the system is then partially or totally drained, it must be refilled using treated water again. Indirect cylinder connection The available kits allow for connecting the appliance to an external indirect cylinder for the production of domestic hot water. The boiler is already equipped for checking the indirect cylinder temperature using the NTC sensor (see electrical diagram) For more detailed information, please read the instruction sheet supplied with the kits. WARNING!! If the appliance is used for heating only, the boiler version parameter must be changed from Tank (1) to System (2) – menu 2/sub-menu 2/parameter 8. 15