The control panelInnovative functionssimple to useThe ALKON is a versatile boiler.Particular care has been givento the flexibility of the controls.The control panel is equipped withan alphanumerical display with 6 preselectionkeys, which enable the userto view the following information:1. Boiler operation•Boiler status; flow and returntemperature•Error code2. User’s parameters•Working temperature setting•On/off central heating3. Service parameters•Maximum working temperature setting•Thermostat•Pump overrun time•Fan ignition speed4. Data readout•Global flow and return temperatureBut the possibilities do not finish here.Infact, using the dedicated E8 heatingcontroller, the control and commandfunctions are reinforced and extended tothe sequence control of multiple boilerinstallations and remote management* ofevery possible configuration.Temperature increase keyReset key/Error code displayDHW set keyCentral heating adjustment keyTemperature decrease keyCH selection key:Stand-by/Central heatingDisplay
ALKON’s brainE8, the intelligent heating controllerThe application and connection of the dedicated E8heating controller, permits a decisive qualitative leap inboiler management depending of the applied loads.The E8, as well as becoming the window of dialoguewith the boiler, thanks to its features, permits the completemanagement of the C.H. system, exploiting the maximummodulating output and the maximum obtainablecondensation.Function E8Self-adaptionThrough the elaboration of data transmittedby the room sensor, this function adjuststhe boiler output to the building’scharacteristics, ensuring a constant monitoringof the indoor temperature on the basisof the variation of the outdoor temperature,keeping in consideration the building’s thermalinertia and the contribution of “free” heat(solar radiation, internal heat sources etc).Boiler heating OptimizationThe heating controller, on the basis ofthe timer/heating programme set by the user,once the system’s characteristics have beenevaluated, will activate the function forautomatically bringing forward the start ofheating so as to ensure that the set temperatureis reached at the time requested by the user.Fast set temperatureThis is obtained by calculating the optimumignition start-up time. This calculationcan be carried out taking into considerationthe outdoor temperature or the roomtemperature.Overheating protectionThe boiler’s safety temperature is controlledvia the pumps overrun time in order to getrid of any thermal inertia.Multiple zone controlWith the same heating control you can control2 independent circuits with differentcharacteristics, though having ensuredall the described functions, includingthe deep sliding temperature function.Programme settingThe heating programmes can be set dailyor weekly, with more than one On-Off firingtimes or temperature reductions duringthe arch of the day.Domestichot waterproductionThere are manyprogrammeswhich controlthe domestichot waterproduction.You canchoose from the maximum of comfort tothe maximum fuel saving. In order to permitthe storage cylinder to supply hot water rapidly,the heating controller brings the boiler’stemperature to the maximum set value.AntilegionEvery 20 heating starts-up or once a week, onSaturday at 01:00 hrs, the storage tank is heatedup to 60°C. This function will eliminate anyeventual bacterium which have formed in theDHW.Frost protection modeThe frost protection operation mode preventsthe C.H. heating from freezing by automaticallyswitching heating operation on. In the frostprotection mode, the room temperature for allthe heating circuits is set to 5°C and the storagetank sensor frost protection is activated whenthe temperature drops below 10°C.Optimisation of DHW(loading pump)The DHW loading pump is switched on onlyif the boiler temperature exceeds by 5K thestorage tank temperature. It is deactivated whenthe boiler temperature drops below the storagetank temperature or if the storage tanktemperature is higher than the nominaltemperature.Slope offset (heating slope distance)The boiler temperature that is required for amixed circuit is calculated byadding to the calculatedtemperature setting for theheating circuit temperaturethe heating curve distance.The heating curve distancecompensates for sensortolerances and heat loss upto the mixer.Number of burnerignitionsBurner run hoursMixing valve opening timeBased on the characteristics of theservomotorAnd more:• Management of up to 15 mixed circuitscontrolled by the outdoor sensor (refer toaccessories).• Integration with renewable energy sourcesas for example: solar systems and/or solid fuelboilers.• 0-10 volt signal: the great flexibility of the E8also permits the boiler set point to be controlledby an external control signal. This will enable,having at disposal an even more complex system,to exploit all the heating control’s functions.• Remote controls*: via appropriate software,this function enables the reduction of systemmanagement, remote indication of boiler run,thereby avoiding unnecessary inspection visits.* available in the near future
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