Genus EVO HP - Manual

maintenance Instructions

maintenance Instructions for opening the casing and performing an internal inspection (45/65) Before performing any work on the boiler, first disconnect it from the electrical power supply using the external bipolar switch and shut off the gas valve. To access the inside of the boiler, the following is necessary: 1. Remove the casing by unhooking it from the control panel (a) 2. Loosen the two screws on the front casing (b), pull it forwards and unhook it from the upper pins (c) 3. Rotate the control panel, pulling it forwards (d) 4. Unhook the two clips on the panel closing off the combustion chamber. Pull it forwards and unhook it from the upper pins (e). (a) Instructions for opening the casing and performing an internal inspection (85/100/115/150) Before performing any work on the boiler, first disconnect it from the electrical power supply using the external bipolar switch and shut off the gas valve. To access the inside of the boiler, the following is necessary: 1. Loosen the two screws on the front casing (a), pull it forwards and unhook it from the upper pins (b) 2. girar el panel de mandos tirándolo hacia delante; 3. Unhook the two clips on the panel closing off the combustion chamber. Pull it forwards and unhook it from the upper pins (c). (a) (b) (b) (c) (d) (c) 38

maintenance Maintenance is an essential part of the safe and efficient operation of the boiler and ensures its durability. It should be performed according to the instructions given in current legislation. Perform combustion analysis regularly in order to check the operating efficiency of the boiler and to make sure any polluting substances relased are within the boudaries set by current legislation. Before beginning maintenance work: - Disconnect the appliance from the electricity supply by turning the external bipolar switch to the “OFF” position; - Close the gas valve and the central heating and domestic hot water system valve. After the work has been completed the initial settings will be restored. General comments It is recommended that the following inspections be carried out on the boiler at least once a year: 1. Check the seals in the water part and, if necessary, replace the gaskets and restore the seal to perfect working order. 2. Check the seals in the gas part and, if necessary, replace the gaskets and restore the seal to perfect working order. 3. Visually check the overall condition of the boiler. 4. Visually check the combustion and, if necessary, disassemble and clean the burner. 5. Following the inspection detailed in point “3”, disassemble and clean the combustion chamber, if necessary. 6. Following the inspection detailed in point “4”, disassemble and clean the burner and injector, if necessary. 7. Cleaning the primary heat exchanger 8. Make sure the following heating safety devices are operating correctly: - temperature limit safety device. 9. Make sure that the following gas part safety devices are operating correctly: - absence of gas or flame safety device (ionisation). 10. Check the efficiency of the domestic hot water production process (test the flow rate and temperature). 11. Perform a general inspection of the boiler operation. 12. Remove oxide from the detection electrode using an emery cloth. Operational test After having carried out the maintenance operations, fill the heating circuit at a pressure of approximately 1.0 bar and release the air from the system. Fill the domestic hot water system at the same time. - Begin operating the boiler. - If necessary, release the air from the heating system again. - Check the settings and make sure all the command, adjustment and monitoring parts are working correctly. - Check the seal and that the system for the expulsion of fumes/ suction of comburent air is operating correctly. Draining procedures The heating system must be drained using the following procedure: - Switch off the boiler, make sure the external bipolar switch is in the OFF position and shut off the gas valve; - Loosen the automatic air relief valve; - Open the system discharge valve and collect the escaping water in a container; - Empty the water from the lowest points of the system (where applicable). If the system is to be left inactive in areas where the room temperature may fall below 0°C during winter, we recommend that anti-freeze liquid is added to the water in the heating system in order to avoid the need for repeated draining; when this liquid is used make sure it is compatible with the stainless steel used for the bodywork of the boiler. We recommend the use of anti-freeze products which contain PROPYLENE GLYCOLS as these inhibit corrosion and that they are used in conjunction with the anti-scaling and anti-corrosion function, in the quantities suggested by the manufacturer, at the mimimum temperature. Regularly check the pH level of the water/anti-freeze mix in the boiler circuit and replace it when the value measured is lower than the limit prescribed by the manufacturer. DO NOT MIX DIFFERENT TYPES OF ANTI-FREEZE. The manufacturer will not be held liable for any damage caused by the appliance or the system due to the use of inappropriate antifreeze substances or additives. Cleaning the primary exchanger Cleaning the smoke side The inside of the primary exchanger is accessed by removing the burner. Wash with water and detergent using a non-metallic rifletype brush, rinse with water. Cleaning the siphon The siphon is accessed by emptying the condensate bowl located in the bottom section. Wash with water and detergent. Replace the condensate collection bowl in its housing. NB: in the event of prolonged use of the appliance, the siphon must be filled before being used again. A lack of water in the siphon is dangerous and may cause smoke to be released into the atmosphere. Draining the domestic hot water system and indirect cylinder Every time there is a danger of freezing, the domestic hot water system must be drained as follows: - Shut off the water mains inlet valve; - Open all the hot and cold water taps; - Empty the water from the lowest points of the system (where applicable). WARNING Before handling, empty all components which may contain hot water, performing bleeding where necessary. Descale the components in accordance with the instructions provided on the safety data leaflet supplied with the product used, make sure the room is well ventilated, wear protective clothing, avoid mixing different products, and protect the appliance and surrounding objects. Seal all openings used to take a gas pressure reading or to make any gas adjustments. Make sure that the nozzle is compatible with the supplied gas. If a smell of burning is detected or smoke is seen leaking from the appliance, or there is a smell of gas, disconnect it from the electricity supply, shut off the gas valve, open the windows and call for technical assistance. Information for the user Inform the user on how to operate the appliance. In particular, provide the user with the instruction manuals and inform him/her that these must be stored with the appliance. Moreover, make sure the user is aware of the following: - The system water pressure must be checked regularly (instruct the user on how to fill and bleed the system). - How to set the temperature and adjustment devices for using the appliance correctly and in a more cost-efficient way. - The system must be serviced regularly in compliance with legislation. - The settings relating to the supply of combustion air and combustion gas must not in any event be modified. 39