AN U AL E U S M AN TE NZI O - Electric Combi Boilers Company
ELECTRIC WALL BOILERONLY HEATINGElektra. . N seriesCALDAIA MURALE ELETTRICASOLO RICALDAMENTOserie Elektra. . NUS E A ND M AINTENANCE M ANUALM ANUALE D' U SO E M ANU TENZIO NEEQUIPMENT COMPLIANT CE DIRECTIVE 2006/42 - IEC 60335-2-21:2012 with IEC 60335-1:2010 with EN60335-2-21:2003 A1:2005 A2:2008 - EN 60335-1:2012 - EN 62233:2008.APPARECCHI CONFORMI CE ALLA DIRETTIVA EUROPEA 2006/42. Costruiti e conformi alle norme IEC60335-2-21:2012 con IEC 60335-1:2010 con EN 60335-2-21:2003 A1:2005 A2:2008 - EN 60335-1:2012 EN 62233:2008.
ELECTRIC WALL BOILERSeries ELEKTRA. NPresentationThank you for choosing an electric wall boiler FIAMMA, built with the most moderntechnologies, safe and tough materials, so as to ensure maximum efficiency of use, totalquality of the device and extreme safety for the user.The series Elektra . is built according to European standards dir. machines 2006/42 - IEC60335-2-21:2012 IEC 60335-1:2010 and EN 60335-2-21:2003 A1 : 2005 A2 : 2008 EN 60335-1:2012 - EN 62233:2008 .The obtained results can be summarized in the following key points:- Noiseless functioning, thanks to maximum insulation of the device by means ofinnovative special materials that ensures minimum heat loss.- High degree of reliability, thanks to a careful choice of materials and to sever testscarried out during production for each unit built.- High performance with maximum efficiency, thanks to a modulation of electrical power tothe heating elements, according to the actual need of energy by the system. The systemD.E.S. manages the device with temperature probes positioned in each sensitive point ofthe boiler, in order to reduce power consumption when the device is not used at themaximum capacity or demand.- The appliance is fully adjustable both in water temperature of the heating system (withthe possibility to choice of system at high and low temperature for underfloor systems).- The assembly of the components has been realized in order to allow an easy access tothem, all from the front of the unit, for ordinary and extraordinary maintenance.We recommend you to follow our instructions, and we suggest to contact the areaauthorized service FIAMMA in order to prepare a planned maintenance contract which canensure suitable operation at maximum efficiency and safety, so that your machine use cango a long way.In renewing our thanks, our technical department and our sales network, are at yourdisposal for any further informationFIAMMA GIRO s.r.l.Company groupThe company FIAMMA GIRO s.r.l. declines all responsibility for possible inaccuracies contained in this pamphlet, if due to printingerrors or inadvertent errors. However, reserves the right to make changes to its products that it deems useful or necessary, withoutaffecting the essential characteristics of the products manufactured and marketed.2
DimensionsThe series Elektra. . N has four power levels, but the same overalldimensions:Elektra.6 N6 kW maximum electrical outputElektra.12 N12 kW maximum electrical outputElektra.18 N18 kW maximum electrical outputElektra.24 N24 kW maximum electrical outputL L PL H Packaging dimensionAppliance dimensionL (Width) :H (Height) :P (Depth) :Weight :40087530039mmmmmmkgWidth :Height :Depth :Weight :344094039041mmmmmmkg
Hydraulic connections – Dimensional of connection arrangement.Hydraulic connectionsMHeating delivery :RHeating return :VSR Heating safety valve (3 bar) :RC Manual Filling tap (restoring water pressure)Bottom view (under the boiler)VSRRCMRElectricalsupply 220165 12080 95 40 4 ¾”¾”½”MMF
Main technical features Elektra 6. - Elektra 12. - Elektra 18.Elektra.6 N6 kW maximum electrical outputSingle-phase electrical supply 230 V - 50 Hz.Weight : 39 kg.Electrical / heat power available at heating: 6 kW obtained by n .1 resistancegroup (n .1 3x2 kW).Maximum head available at the pump 5 m H 2 OExpansion vessel capacity of 8 lt.Safety valve of heating circuit: 3 bar.Maximum heating operating pressure: 2.5 bar.Minimum operating pressure in the heating circuit: 0.6 bar.Maximum limit of thermal safety heating circuit - boiler body: 100 C.Elektra.12 N12 kW maximum electrical outputSingle-phase electrical supply 230 V - 50 Hz.Weight : 40 kg.Electrical / heat power available at heating: 12 kW obtained by n .2 resistancegroups (n .2 3x2 kW).Maximum head available to the pump 5 m H 2 OExpansion vessel capacity of 10 lt.Safety valve of heating circuit: 3 bar.Maximum heating operating pressure: 2.5 bar.Minimum operating pressure in the heating circuit: 0.6 bar.Maximum limit of thermal safety heating circuit - boiler body: 100 C.Elektra.18 N18 kW maximum electrical outputSingle-phase electrical supply 230 V - 50 Hz.Weight : 41 kg.Electrical / heat power available at heating: 18 kW obtained by n .3 resistancegroups (n .3 3x2 kW).Maximum head available at the pump 5 m H 2 OExpansion vessel capacity of 10 lt.Safety valve of heating circuit: 3 bar.Maximum heating operating pressure: 2.5 bar.Minimum operating pressure in the heating circuit: 0.6 bar.Maximum limit of thermal safety heating circuit - boiler body: 100 C.5
Main technical features Elektra 24.Elektra.24 N24 kW maximum electrical outputSingle-phase electrical supply 230 V - 50 Hz.Weight : 42 kg.Electrical / heat power available at heating: 24 kW obtained by n .4 resistancegroups (n .4 3x2 kW).Maximum head available to the pump 6 m H 2 O .Expansion vessel capacity of 10 lt.Safety valve of heating circuit: 3 bar.Maximum heating operating pressure: 2.5 bar.Minimum operating pressure in the heating circuit: 0.6 bar.Maximum limit of thermal safety heating circuit - boiler body: 100 C.Switching-on the boilerCONTROL troThe control panel is composed of : display, function selection keys, generalswitch and the hydrometer it is placed in the lower left cornerin front of the unit (see image above).6
Using analogical hydrometer.The analogical hydrometer control panel has a dial with unit of measure in abar, from 0 to 6 bar. The water pressure in the heating system is indicated bythe index of the black arrow.The optimum pressure for the system is between 1 and 1.5 bar.More than 1.5 bar you can have a maximum pressure of 2 bar (maximumexpansion of the system during the rise in temperature). More than 2 barpressure the system is not in the range of operation, and mechanical safetyvalve (preset to 3 bar) can start to lose water.The minimum operating pressure is 0.8 bar ( /- 0.2 bar). The differentialpositive or negative tolerance is due to the operation of the water pressureswitch with fixed setting.KEYBOARD PANEL (Control panel)J7J6J2J3 J4J5MEANING OF THE KEYS IN USER MODEKEYFUNCTIONJ5Change and set parameters.J6Change and set parameters.J7J4ON - OFF SwitchingDisplay temperature output / Display setpoint outputUnlock error of safety thermostatSummer – Winter switchingJ2Display / Increase of heating setpoint (or room temperature)J3Display / Decrease of heating setpoint (or room temperature)7
TURNING ON THE BOILERThe boiler is switched-on by means of the light General switch located on theleft of the display in the instrument panel of the boiler. Pressing the switchupward to the ON position, it will light in the presence of single-phase supply(230V-50 Hz). Then, it shall be pressed the ON-OFF (J7) on the keypad toswitch the power from stand-by to the operating position; the display will lightup of blue and will appear various symbols signaling function /faults etc.At this point it shall be chosen the mode of operation, summer or winteroperation.TEMPERATURE VARIATION OF THE HEATING CIRCUITWhen the apparatus has been set with the snow symbol ( C) for the wintryfunctioning, you can change the maximum temperature of heating circuitpressing one of the two keys with the radiator symbol located on the left of thedisplay (J2 and J3 keys).The key with the symbol of the I (J2), increases the temperature, andthe key with the symbol of the I - (J3), decreases the temperature.ON-OFF KEYDisplay SimbolsThe ON/OFF key (J7), in addition to put theboiler in stand-by mode, allows to reset(unlock) the apparatus in case of hightemperature lock.If the lock would be caused by lack of waterpressure alarm, the recovery will beautomatic after that the hydric pressure willbe restored at the minimum operating level(0,8 bar) by means of the opening and the closure of the charging tap placed under theboiler (black handle).The display has several symbols, signaling in addition to operation modes, also thevarious alarm or system displays:8
SYMBOLLJIFECBALevel ofmodulationMEANINGMalfunctionRequest of burner switch-onHeating requestParameter menu activatedAnti-freeze request activatedWinter modeSummer modeOFF modeIndicates the instantaneous power of the boiler from 0 to 100%INSTALLATIONTECHNICAL NOTE FOR INSTALLER AND TECHNICAL MAINTENANCEHYDRAULIC SCHEME(Elektra 12 N 014 version)9
Legend- TS- PA-S-R-M- VSRSafety thermostat.Water pressure switch.Thermowell for immersion sensor.Hydraulic connection in-let heating circuit.Hydraulic connection out-let heating circuit.Safety valve heating circuit 1/2”x3 bar- rc- CC- rsc- RC- VE- rsDrain valve.Boiler body.Drain valve of boiler body.Boiler resistance of 6 kW.Expansion vessel heating circuit.Filling tapFor the other models, the only changes refer to the number of electric resistances; the 6 kWversion has only one 6 kW resistance (detail RC), the 18 kW version has three 6 kW resistances,and the 24 kW version has four 6 kW resistances.10
CONNECTING SCHEMEFN1243567brownblu ebluebrownPI891011J1 2blue1TAG4Nblackbrown54black321J1 1J6Inte rfac cia 961R eJ14brown43 42 41 40 3 9 38 37 36brownJP7J P8JP10JP951 51 50 49 48 47 46 45 44PSAFT
FbrownNblueb lackblackb lackblue23 0V-50 Hz.MAIN ELECTRIC SCHEMEON/OFFblueTSblu eGXbrownConta ctorsblueRBF.A1A2blueMain PCBGXbNbrownblackblackbblackbb FTContattoTSbrownb rownbLegend electric schemeSingle phaseFNeutralNSelected Phase from ContactorFTElectric PumpPIControl of contact TS on Contactor of power (C-NO)cTSControl gate triac n 1 (4KW power)G1Control gate triac n 2 (2KW power)G2Control gate triac n 3 (4KW power)G3Control gate triac n 4 (2KW power)G4Delivery heating probe (ntc sensor)SMExternal probe (sensor)SEWater pressure switchPSASafety thermostatTSRoom thermostat (terminal provided)TA12L
TRIAC – Connection scheme13
MANUFACTURE CONSTANTSFUNCTIONValueMAX TEMPERATURE PRIMARY80 CTIME OF PUMP FUNCTIONING IN ANTI-LOCK10 secINTERVENTION TIME ANTI-LOCK PUMP24HTEMPERATURE ANTIFREEZE ON (only circulator)7 CTEMPERATURE ANTIFREEZE ON (heat exchanger ignition)4 CTEMPERATURE ANTIFREEZE OFF20 CSETPOINT AND PARAMETERSFUNCTIONDefaultRANGEHEATING SETPOINT60 C30 – 75 CFLOOR HEATING SETPOINT30 C10 – 40 CROOM SETPOINT (with external probe present)20 C10 – 30 CPARAMETERSFUNCTIONN DefaultRANGEEXTERNAL PROBE START UP100–1BUILDING COEFFICIENT OF DISPERSION2355 – 35 CHEATING POST CIRCULATION4301 – 180 secHEATING EXCHANGER CIRCULATION STARTING500 – 240 secMIN. IGNITION TEMPERATURE CIRCULATOR6300 – 50 CTEMPERATURESFUNCTIONN DELIVERY TEMPERATUREt: “Ch”EXTERNAL TEMPERATUREt: “Ep”OFFSET SETPOINT OF EXTERNAL PROBEt: “Se”SELECTION JUMPERS enableJumper0/1JP7High temperature / Low temperature plantJP8Combi / Only Heating14
CONTROL OF MAIN HEAT EXCHANGERAccording to the required power during the heat request, the controls G1-G4 related to themain exchanger are turned on all or partially.The actuation of each control is reduced to a lapse of 4 seconds. Higher is the requiredpower, more the control will remain operative in this lapse.The power in heating or during a sanitary request is calculated by PID algorithm.Please see in the pictures below two examples related to 40% and 60% of total power.G4G4G3G3G2G2G1G14s4sIn case of simultaneous request of heating and tank, the controls G1-G4 related to themain heat exchanger will be directed in the following way:Primary G1 G4G1 G4 modulationBoiler statusOnly heating requestControls rotation:Every hour the order of ignition of triac G1 G4 controls is rotated in such a way topartition evenly in time the use of all heating elements.15
CONTROL OF EXERNAL PROBEInstallation and functioning at sliding temperatureFor the connection of the external probe, it shall be used theOriginal Kit FIAMMA code F.532 provided in the accessories of theelectric boilers Elektra.The electrical connection shall be done in the external terminal atthe general electric panel already prearranged in the standardcabling of the boiler. The connection must be carried out withjunction cables and wires having a minimum section of 1,5 mm and,if possible, avoiding the insertion along with electric lines, digitallines of inverter or other not compatible.After the connection the external probe must be enabled by means of the introduction of avariation of N 1 parameter, changed from 0 to 1.Then the setpoint chased by the heating delivery probe will be calculated as follows:Ti [ (Troom – T e) * K e / 10 ] 050-5-10-15-20TeExample of calculation for several values of KeThe coefficient Ke is the leakage of the building and it can be set by N 2 parameter.Te, is the temperature measured by the external probe.Troom is the setpoint related to the desired room temperature.16
ANTIFREEZE FUNCTIONIn case the delivery probe measures a temperature lower than 7 C, the circulator isactivated.If the temperature goes down the value of 4 C the m ain heat exchanger is ignited until thedelivery temperature has reached 20 C. The antifree ze function is active also with theboiler turned OFF (function in standby mode but with bright switch on).HEATING REQUESTAs the contact of room thermostat closes, if the mainboard is in winter mode, the systempump is only activated if the temperature of the primary heat exchanger is higher than thetemperature set by parameter N 6.If the value of temperature measured by the primary heat exchanger probe is lower than theprogrammed delivery setpoint, the triac are ignited in sequence as per the required power.This occurs only after a settable time by parameter N 5.The instant power of the boiler and the related control of triac G1-G4 takes place bymeans of PID regulator.At the end of the request the pump remains supplied for a time equal to the value programmedby N 4 parameter.MEANING OF THE KEYS OF TEMPERATURE MENUTo log in temperature menu, press simultaneously J3 and J5 keys. The symbolappear on the display.KEYFUNCTIONJ7Exit by temperature menuJ2Temperature index increaseJ3Temperature index decreaseF willMEANING OF KEYS OF PARAMETERS MENUTo log in parameters menu, press simultaneously the keys J2 and J6 for 4 seconds.The symbol F will appear on the display.KEYFUNCTIONJ5Parameter value decreaseJ6Parameter value increaseJ7Exit by parameters menuJ2Parameter index increaseJ3Parameter index decrease17
“Heating elements status”The dashes located in the upper part indicate the heating elements status. Each dashcorresponds to a 2 kW element. The first 6 dashes refer to heating modules of primaryheat exchanger.G1G2G3G4“Heating request”When an heating request occurs, the temperature measured by the delivery probe isdisplayed and the symbol I starts to flash. On the small digit is displayed the tanktemperature. The instantaneous power of the boiler is indicated by the level of modulation.In any moment it is possible to observe which triac are turned on.“Temperature display”On the small digit will appear the writing t : followed by the description of the selectedtemperature, while the big digit will show the temperature value.FUNCTIONN DELIVERY TEMPERATUREt: “Ch”EXTERNAL TEMPERATUREt: “Ep”EXTERNAL PROBE OFFSET SETPOINTt: “Se”18
“Parameters display”On the small digit will appear the writing P : followed by the index of the selectedparameter, while the big digit will show the parameter value.MALFUNCTIONING CODEWhen a malfunction occurs, the writing “Err F X” appears, where X indicates the relatederror codeCODE “Err”MEANING9Hardware eeprom failure1Insufficient system water pressure3Err boiler delivery probe8Safety thermostat block19
FUNCTIONING WITH REMOTE CONTROL ENCRONO OT1, OT2 or KRONOS OT11LOOK OF THE REMOTE CONTROL ENCRONO OT1, OT2 and KRONOS OT11Elektra N, can be connectedby means of its card and anadditional module to install on aprearranged part, to a compatibleremote control device Opentherm ,like Encrono OT1, OT2 or OT11.This can be obtained by means ofthe interface card (additionalmodule).When the card finds the connectionwith the remote control, on the LCDdisplay appears the symbol M.The compatible remote controlOpenTherm becomes the master ofthe entire system, therefore almostall the functionalities, as the setting of heating and hot sanitary water setpoint or thecontrol of system status, are directly executable by it, in relation with the kind of applicationon which the card is used.By means of the remote control it is possible to restore the system from the non-volatilelock status.The communication between the remote control and the electronic card fitted with D.E.S.system can be interrupted in the following ways:- Interruption of the connection between remote control and card:In this case, after 1 minute, the card starts to work in local mode.- Noise on communication cable between remote control and card:In this case it is possible that remote control and card do not manage to communicate(wrong data interpretation), therefore, after a certain lapse appears the related error signal.If the noise on the communication cable ends, the dialog between remote control and thecard is automatically restored and the malfunction disappears.TRANSPARENT PARAMETERSThis function is available only with the use of remote control OT2 or OT11. The digitalelectronic PCB is equipped with 5 parameters adjustable by the installer, in order to set thefunctioning of the system in conformity to the final application. The parameters have thesame meaning of the ones described in the table “parameters”.20
Parameters TableFUNCTIONEXTERNAL PROBE ENABLINGBUILDING LEAKAGE COEFFICIENTHEATING POST CIRCULATIONHEATING EXCHANGER CIRCULATION STARTINGMIN. IGNITION TEMPER. CIRCULATORN 12456def. RANGE00–135 5 – 35 C30 1 – 180 sec00 – 240 sec0 – 50 C30RANGE OF SETPOINT ADJUSTABLE BY MEANS OF REMOTE CONTROLInterval of temperature setting with high temperature system(JP7 0)Interval of temperature setting with low temperature system(JP7 1)30 C 75 C - step 1 CPre-set value: 60 C15 C 40 C - step 1 CPre-set value: 30 CFUNCTIONING OF BOILER ELEKTRA WITH REMOTE CONTROLThe actuation of heating mode takes place after an heating request from remote control(value of heating setpoint calculated by remote control higher than heating setpoint set bythe user on remote control divided by two) and in the winter mode status.It also enabled the relay which controls the valve opening area managed by Enchrono/Kronos.CONTROL PANEL IN USER MODEThe pressure of one key/two keys activates the backlighting of LCD display.KEYJ5J6J7FUNCTIONDisabled in Opentherm modeDisabled in Opentherm modeUnlock error of safety thermostatJ4Disabled in Opentherm modeJ2Disabled in Opentherm modeJ3Disabled in Opentherm modeCONTROL PANEL IN INSTALLER MODEThe keys have the same functioning described on par. “Control panel in user mode”.DISPLAY OF MALFUNCTIONSCODE “Err”F 009F 001F 003MEANINGHardware eeprom faultInsufficient water pressure in the systemBoiler delivery probe errorF 008Safety thermostat lockFor further details related to remote controls series OT1 / OT2 / OT11, please see therelated technical specifications.21
SPARE articular - Upper particular / resistance / Boiler body / resistances202319212311162226252322
Front unit142730292512Spare parts – Legend123456
equipment compliant ce directive 2006/42 - iec 60335-2-21:2012 with iec 603351-:2010 with en 60335-2-21:2003 a1:2005 a2:2008 - en 60335-1:2012 - en 62233:2008. us e a n d m ai nt en an ce m a nu a l m an u al e d' u s o e m an u te nzi o n e caldaia murale elettrica solo ricaldamento seri
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