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Cares ONE NG - Installation Manual

  • Text
  • Boiler
  • Heating
  • Flue
  • Appliance
  • Valve
  • Installation
  • Efficiency
  • Maintenance
  • Maximum
  • Domestic
  • Manual

SETTINGS - ADJUSTMENT - PROBLEM IDENTIFICATION MENUS parameter description notes value default setings parameter description notes value default setings 4 2 2 Zone 1 Slope from 1.0 to 3.5 1.5 (high temperature) from 0.2 to 0.8 0.8 (low temperature) If the external sensor is used, the boiler calculates the most suitable heating flow temperature taking the external temperature and the type of appliance into account. The type of curve must be chosen according to the type of appliance radiator and the heat losses present in the building. °C 100 Flow Temperature 90 80 70 60 50 40 30 3.5 3.0 2.5 2.0 1.5 1.2 1.0 0.8 0.6 0.4 0.2 Low temperature High temperature 8 3 2 Heating backflow temperature (in °C) 8 4 2 Solar appliance water input temperature activated only with the solar kit connected 8 7 4 Boiler Flowswitch 0 = Open 1 = Closed °C Ambiente temperature setting value 25 20 15 10 5 0 -5 -10 -15 -20 °C External temperature 4 2 3 Parallel shift from - 14 to + 14 (°C) (high temperature) from - 7 to + 7 (°C) 0 (low temperature) To adapt the thermal curve to the appliance requirements, it is possible to perform a parallel shift of the curve in order to alter the calculated flow temperature and therefore the ambient temperature. By accessing this parameter or pressing the buttons 8 the curve can be shifted in a parallel manner as indicated in the figure shown below. The value is indicated on the display: - from -7 to +7 (low temperature) - from -14 to +14 (high temperature) Each step represents a flow temperature increase/ decrease of 1°C in relation to the set-point value. 4 2 4 Compensation from 0 to 20 20 if setting = 0, the temperature taken from the ambient sensor does not affect the calculation of the setting. If setting = 20, the temperature taken has maximum influence on the setting. 4 2 5 Zone 1 heating MAXIMUM temperature setting 4 2 6 Minimum Central Heating Temperature Zone 1 8 2 2 Fan Speed - x100 RPM 8 2 4 Diverter valve position 0 = DHW 1 = CH 8 2 7 Modulating Pump (%) 8 3 1 Heating flow temperature (in °C) 0 from 35 to 82 °C 82 if parameter 420 = 1 from 20 to 45 °C 45 if parameter 420 = 0 from 35 to 82 °C 40 38 /

MAINTENANCE Important 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 released are within the boundaries 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 valves. 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 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, 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. 13. These checks are not exhaustive. Further mechanical, electrical and combustion maintenance checks may be required. Operational test After having carried out the maintenance operations, fill the heating circuit at a pressure of approximately 1.5 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 flue system is sealed and 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 drain off cock 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 anti-freeze substances or additives. 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. 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. Cleaning the primary exchanger Cleaning the combustion side The inside of the primary exchanger is accessed by removing the burner. Wash with water and detergent using a non-metallic rifle-type brush, rinse with water. Cleaning the trap The trap 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 trap must be filled before being used again. A lack of water in the trap is dangerous and may cause products to be released into the atmosphere. / 39

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