Atlas D Eco K Unit - Heat pump FERROLI - Free user manual and instructions

USER MANUAL Atlas D Eco K Unit FERROLI

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

• Read the warnings in this instruction booklet carefully since they provide important informa- tion on safe installation, use and maintenance.

• This instruction booklet is an integral and essen- tial part of the product and must be kept with care by the user for future reference.

• If the unit is sold or transferred to another owner or if it is to be moved, always make sure the booklet stays with the boiler so that it can be con- sulted by the new owner and/or installer.

• Installation and maintenance must be carried out by professionally qualified personnel, according to current regulations and the manufacturer's in- structions.

• Incorrect installation or inadequate maintenance can result in damage or injury. The manufacturer declines any liability for damage caused by er- rors in installation and use or by failure to follow the instructions provided.

• Before carrying out any cleaning or maintenance operation, disconnect the unit from the power supply using the system switch and/or the spe- cial cut-off devices.

• In case of a fault and/or poor operation, deacti- vate the unit and do not try to repair it or directly intervene. Contact professionally qualified per- sonnel. Any repair/replacement of the products must only be carried out by qualified personnel using genuine parts. Failure to comply with the above can compromise the safety of the unit.

• Periodic maintenance performed by qualified personnel is essential in order to ensure proper operation of the unit.

• This unit must only be used for its intended pur- pose. Any other use is deemed improper and therefore hazardous.

• After unpacking, check the good condition of the contents. The packing materials are potentially hazardous and must not be left within the reach of children.

• The unit can be used by children aged at least 8 years and by persons with reduced physical, sensory or mental capabilities, or lacking experi- ence or the necessary knowledge, only if under supervision or they have received instructions on its safe use and the related risks. Children must not play with the unit. Cleaning and maintenance intended to be done by the user can be carried out by children aged at least 8 years only if under supervision.

• In case of doubt, do not use the unit. Contact the supplier.

• The unit and its accessories must be appropri- ately disposed of in compliance with current reg- ulations.

• The images given in this manual are a simplified representation of the product. In this representa- tion there may be slight and insignificant differ- ences with respect to the product supplied. THE CE MARKING CERTIFIES THAT THE PROD-

THE DECLARATION OF CONFORMITY MAY BE

REQUESTED FROM THE MANUFACTURER. This symbol, which is used on the product, packaging or documents, means that at the end of its useful life, this product must not be collected, recycled or dis- posed of together with domestic waste. Improper management of electric or electronic waste can lead to the leakage of hazardous substances con- tained in the product. For the purpose of preventing damage to health or the environment, users are kindly asked to separate this equipment from other types of waste and to ask for it to be dealt with by the municipal waste service or dealer under the conditions and according to the methods set down in national and international laws transposing the Directive 2012/19/

cod. 3541Q563 - Rev. 00 - 10/20212. OPERATING INSTRUCTIONS2.1 IntroductionDear Customer, Thank you for choosing a FERROLI boiler featuring advanced design, cutting-edge tech- nology, high reliability and quality construction. Please read this manual carefully sinceit provides important information on safe installation, use and maintenance.ATLAS D ECO 30/42 K 100/130 UNIT is a high-efficiency heat generator for domestic hot water production and heating, using an oil burner. The boiler shell consists of cast- iron elements, assembled with double cones and steel stays placed over a DHW quickstorage domestic hot water tank, vitrified, and protected against corrosion by a magne-sium anode. The control system is with microprocessor and digital interface with ad-vanced temperature control functions.2.2 Control panelPanelfig. 1 - Control panelPanel key1 = DHW temperature setting decrease button2 = DHW temperature setting increase button3 = Heating system temperature setting decrease button4 = Heating system temperature setting increase button5 = Display6 = Summer / Winter mode selection button7 = Economy / Comfort mode selection button8 = Reset button9 = Unit On / Off button10 = "Sliding Temperature" menu button11 = Set DHW temperature reached12 = DHW symbol13 = DHW mode14 = DHW outlet temperature / setting15 = Eco (Economy) or Comfort mode16 = External sensor temperature (with optional external probe)17 = Appears on connecting the external Probe or the Remote Timer Control (op-tionals)18 = Room temperature (with optional Remote Timer Control)19 = Burner On20 = Antifreeze operation21 = Heating system pressure22 = Fault23 = Heating delivery temperature/setting24 = Heating symbol25 = Heating mode26 = Set heating delivery temperature reached27 = Summer modeIndication during operationHeatingA heating demand (generated by the Room Thermostat or Remote Timer Control) is in-dicated by flashing of the hot air above the radiator (details 24 and 25 - fig. 1).The heating graduation marks (detail 26 - fig. 1) light up as the heating sensor tempera-ture reaches the set value.fig. 2DHW (Comfort)A DHW demand (generated by drawing domestic hot water) is indicated by flashing ofthe hot water under the tap (details 12 and 13 - fig. 1). Make sure the Comfort function(detail 15 - fig. 1) is activatedThe DHW graduation marks (detail 11 - fig. 1) light up as the DHW sensor temperaturereaches the set value.fig. 3Exclude hot water tank (economy)Hot water tank temperature maintaining/heating can be excluded by the user. If exclud-ed, domestic hot water will not be delivered.When hot water tank heating is activated (default setting), the COMFORT symbol (detail15 - fig. 1) is activated on the display, and when off, the ECO symbol (detail 15 - fig. 1)is activated on the displayThe hot water tank can be deactivated by the user (ECO mode) by pressing the eco/comfortfig. 1 button (detail 7 - ). To activate the COMFORT mode, press the eco/comfortbutton (detail 7 - )fig. 1again.2.3 Lighting and turning offBoiler not electrically poweredfig. 4 - Boiler not electrically powered

The antifreeze system does not work when the power and/or gas to the unit are turned off. To avoid damage caused by freezing during long idle periods in winter, it is advisable to drain all water from the boiler, DHW circuit and system; or drain just the DHW circuit and add a suit- able antifreeze to the heating system, complying with that prescribed in sec. 3.3. Boiler lighting• Open the fuel on-off valves.• Switch on the power to the unit.fig. 5 - Boiler lighting

cod. 3541Q563 - Rev. 00 - 10/2021

• For the following 120 seconds the display will show FH which identifies the heating system air venting cycle.

• During the first 5 seconds the display will also show the card software version.

• When the message FH disappears, the boiler is ready to operate automatically whenever domestic hot water is drawn or in case of a room thermostat demand. Turning the boiler off Press the on/off button (detail 9 - fig. 1) for 1 second. fig. 6 - Turning the boiler off When the boiler is turned off, the PCB is still powered. Domestic hot water and heating are disabled. The antifreeze system remains activated. To relight the boiler, press the on/off button (detail 9 - fig. 1) again for 1 second. fig. 7 The boiler will be immediately ready to operate whenever domestic hot water is drawn or in case of a room thermostat demand.

Summer/Winter Switchover Press the summer/winter button (detail 6 - fig. 1) for 1 second. fig. 8 The display activates the Summer symbol (detail 27 - fig. 1): the boiler will only deliver domestic hot water. The antifreeze system remains activated. To deactivate the Summer mode, press the summer/winter button (part. 6 - fig. 1) again for 1 second. Heating temperature setting Use the heating buttons (details 3 and 4 - fig. 1) to adjust the temperature from a min. of 30°C to a max. of 80°C. In any case it is advisable not to operate the boiler below 45°C. fig. 9 DHW temperature adjustment Use the DHW buttons -/+ (details 1 and 2 - fig. 1) to adjust the temperature from a min. of 10°C to a max. of 65°C. fig. 10 Room temperature adjustment (with optional room thermostat) Using the room thermostat, set the temperature desired in the rooms. If the room ther- mostat is not installed the boiler will keep the heating system at its setpoint temperature. Room temperature adjustment (with optional remote timer control) Using the remote timer control, set the temperature desired in the rooms. The boiler unit will set the system water according to the required room temperature. For information on the remote timer control, please refer to its user's manual. Sliding temperature When the optional external probe is installed the control panel display (detail 5 - fig. 1) shows the actual outside temperature read by the probe. The boiler control system op- erates with "Sliding Temperature". In this mode, the temperature of the heating system is adjusted according the outside weather conditions, in order to ensure high comfort and energy saving throughout the year. In particular, as the outside temperature increases, the system delivery temperature is decreased according to a specific "compensation curve". With Sliding Temperature adjustment, the temperature set with the heating buttons -/+ (details 3 and 4 - fig. 1) becomes the maximum system delivery temperature. It is advis- able to set a maximum value to allow system adjustment throughout its useful operating range. The boiler must be adjusted at the time of installation by qualified personnel. Possible adjustments can in any case be made by the user to improve comfort. Compensation curve and curve offset Press the mode button (detail 10 - fig. 1) once to display the actual compensation curve (fig. 11), which can be modified with the DHW buttons (details 1 and 2 - fig. 1). Adjust the required curve from 1 to 10 according to the characteristic (fig. 13). By setting the curve to 0, sliding temperature adjustment is disabled. fig. 11 - Compensation curve Press the heating buttons (details 3 and 4 - fig. 1) to access parallel curve offset (fig. 14), modifiable with the DHW buttons (details 1 and 2 - fig. 1). fig. 12 - Curve parallel offset Press the mode button (detail 10 - fig. 1) again to exit parallel curve adjustment mode. If the room temperature is lower than the required value, it is advisable to set a higher order curve and vice versa. Proceed by increasing or decreasing in steps of one and check the result in the room. fig. 13 - Compensation curves fig. 14 - Example of compensation parallel curve offset

OFFSET = 20 OFFSET = 40ATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021Adjustments from Remote Timer Control If the Remote Timer Control (optional) is connected to the boiler, the above ad-justments are managed according to that given in table 1. Also, the control pan- el display (detail 5 - fig. 1) shows the actual room temperature detected by the Remote Timer Control.Table. 1System water pressure adjustmentThe filling pressure with system cold, read on the display, must be approx. 1.0 bar. If thesystem pressure falls to values below minimum, the boiler card will activate fault F37(fig. 15).fig. 15 - Low system pressure faultOptional filling cock and vessel kitAn optional kit comprising a DHW expansion vessel and a filling cock is available on re-quest.The filling cock must be installed respecting the direction of the arrow.When installed, operate the filling cock (detail 1 - fig. 16) to bring the system pressure toa value above 1.0 bar.fig. 16- Filling cock (optional) Once the system pressure is restored, the boiler will activate the 120-secondair venting cycle indicated on the display by FH.3. INSTALLATION3.1 General InstructionsBOILER INSTALLATION MUST ONLY BE PERFORMED BY QUALIFIED PERSON- NEL, IN ACCORDANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL MANUAL, THE PROVISIONS OF CURRENT LAW, THE PRESCRIPTIONS OF NA-TIONAL AND LOCAL STANDARDS AND THE RULES OF PROPER WORKMANSHIP.3.2 Place of installationThe boiler unit must be installed in a specific room with ventilation openings to the out-side as prescribed by current regulations. If there are several burners or suction unitsthat can work together in the same room, the ventilation openings must be sized for si-multaneous operation of all the units. The place of installation must be free of flammablematerials or objects, corrosive gases, powders or volatile substances that, conveyed bythe burner fan, can obstruct the internal lines of the burner or the combustion head. Theroom must be dry and not exposed to rain, snow or frost. If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-vided for removing the casing and for normal maintenance operations.3.3 Plumbing connectionsImportant The heating capacity of the unit must be previously established by calculating the build- ing's heat requirement according to the current regulations. The system must be provid- ed with all the components for correct and regular operation. It is advisable to installshutoff valves between the boiler and heating system allowing the boiler to be isolatedfrom the system if necessary. The safety valve outlet must be connected to a funnel orcollection pipe to prevent water spurting onto the floor incase of overpressure in the heating circuit. Otherwise, ifthe discharge valve cuts in and floods the room, the boilermanufacturer cannot be held liable.Do not use the water system pipes to earth electrical ap-pliances.Before installation, flush all the pipes of the system thoroughly to remove any residualsor impurities that could affect proper operation of the unit.Carry out the relevant connections according to the diagram in cap. 5 and the symbolsgiven on the unit. Install on the cold water inlet the safety check valve “A” (see fig. 17) supplied with the boiler. Respect the directionof the arrow on the valve.fig. 17 - Safety check valve installation Install on the system delivery the non-return valve “A” (see fig. 18) supplied with the boiler, interposing the gas- ket “B” . Respect the direction of the arrow on the valve.fig. 18 - Non-return valve installationHeating temperature settingAdjustment can be made from the Remote Timer Control menu and the boiler control panel.DHW temperature adjustmentAdjustment can be made from the Remote Timer Control menu and the boiler control panel.Summer/Winter SwitchoverSummer mode has priority over a possible Remote Timer Control heating demand.Eco/Comfort selectionOn disabling DHW from the Remote Timer Control menu, the boiler selects the Economy mode. In this condition, the button 7 fig. 1 on the boiler panel is dis-abled.On enabling DHW from the Remote Timer Control menu, the boiler selects the Comfort mode. In this condition it is possible select one of the two modes with the button 7 fig. 1 on the boiler panel.Sliding TemperatureBoth the Remote Timer Control and the boiler card manage Sliding Temperature adjustment: of the two, the Sliding Temperature of the boiler card has priority.

cod. 3541Q563 - Rev. 00 - 10/2021 High efficiency hot water tank circulating pump For proper operation of the boiler ATLAS D ECO 30/42 K 100/130 UNIT, the speed se- lector (see fig. 19) must be set to position III. fig. 19 High efficiency heating circulating pump The factory setting is suitable for all installations; however a different operation strategy can be set, depending on the characteristics of the system. - Proportional Head Dp-v setting (fig. 20) The circulating pump head will be automatically reduced with the decrease in flow rate required by the system. This setting is optimum for systems with radiators (2 pipes or sin- gle pipe) and/or thermostatic valves. The strong points are the reduction in power consumption with the decrease in system demand and reduction of noise in radiators and/or thermostatic valves. The operating range is from min. (1) to max. (7). - Setting Fixed speed (fig. 21) The circulating pump does not modulate its power. The operating principle is that of con- ventional 3-speed circulating pumps (with a reduction in power consumption compared to them). The operating range goes from speed 1 (I) to speed 3 (III). High-efficiency circulating pump (model PARA) Control buttons and signaling LEDs fig. 22 For a correct result of the "Thermal quantity balance" calculation (see section 11 THER- MAL QUANTITY BALANCE (METERING), the circulating pump must be set to "Con- stant speed " and to the position . To set this adjustment, press button "A" several times until the LEDs shown in the figure below light up. fig. 23 However, a different operating strategy can be set, depending on the characteristics of the system. - Setting p-v Proportional Head The circulating pump head will be automatically reduced with the decrease in flow rate required by the system. The strengths are reduced power consumption as the system demand decreases, and reduced noise. The operating range is from minimum to maximum. - Setting p-c Constant Head The circulating pump head is constant as the flow rate required by the system varies. - Setting Fixed speed The circulating pump does not modulate its power. The operating principle is that of con- ventional 3-speed circulating pumps (with a reduction in power consumption compared to them). The operating range is from speed 1 ( ) to speed 3 ( ). Setting Dp-v Proportional head fig. 20 Setting Fixed speed fig. 21 Min

In normal operation, the LED lights up green LED on/flashing in case of a fault Selected adjustment mode: Proportional head p-v Constant head p-c Fixed speed Selected characteristic curve (1 , 2 , 3 ) within the adjustment mode Combined LED indications during circulating pump venting, manual restart and button lock Press the button to set the various adjustment combinations

• Press for 3 seconds to activate circulating pump venting

• Press for 5 seconds for manual restart

• Press for 8 seconds to lock/unlock the button

cod. 3541Q563 - Rev. 00 - 10/2021 Water system characteristics In the presence of water harder than 25° Fr (1°F = 10ppm CaCO3), use suitably treated water in order to avoid possible scaling in the boiler. Treatment must not reduce the hard- ness to values below 15°F (Decree 236/88 for uses of water intended for human con- sumption). Treatment of the water used is indispensable in case of very large systems or with frequent introduction of replenishing water in the system.

If water softeners are installed at the boiler cold water in- let, make sure not to reduce the water hardness too much, as this could cause early deterioration of the mag- nesium anode in the hot water tank. Antifreeze system, antifreeze fluids, additives and inhibitors The boiler is equipped with an antifreeze system that turns on the boiler in heating mode when the system delivery water temperature falls under 6°C. The device will not come on if the electricity and/or gas supply to the unit are cut off. If it becomes necessary, it is permissible to use antifreeze fluid, additives and inhibitors only if the manufacturer of these fluids or additives guarantees they are suitable for this use and cause no damage to the heat exchanger or other components and/or materials of the boiler unit and sys- tem. It is prohibited to use generic antifreeze fluid, additives or inhibitors that are not ex- pressly suited for use in heating systems and compatible with the materials of the boiler unit and system.

3.4 Burner connection

The burner is equipped with flexible pipes and a filter for connection to the oil feed line. Run the flexible pipes out of the back and install the filter as indicated in fig. 24. fig. 24 - Fuel filter installation The oil feed circuit must be made according to one of the following diagrams, without ex- ceeding the pipe lengths (LMAX) given in the table. fig. 25 - Gravity feed fig. 26 - Suction feed fig. 27 - Siphon feed fig. 28 - Ring feedATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021

3.5 Electrical connections

Connection to the electrical grid

The unit's electrical safety is only guaranteed when cor- rectly connected to an efficient earthing system executed according to current safety standards. Have the efficiency and suitability of the earthing system checked by profes- sionally qualified personnel. The manufacturer is not re- sponsible for any damage caused by failure to earth the system. Also make sure that the electrical system is ade- quate for the maximum power absorbed by the unit, as specified on the boiler dataplate. The boiler is prewired and provided with a Y-cable and plug for connection to the elec- tricity line. The connections to the grid must be made with a permanent connection and equipped with a bipolar switch whose contacts have a minimum opening of at least 3 mm, interposing fuses of max. 3A between the boiler and the line. It is important to re- spect the polarities (LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow-green wire) in making connections to the electrical line. During installation or when changing the power cable, the earth wire must be left 2 cm longer than the others.

The user must never change the unit's power cable. If the cable gets damaged, switch off the unit and have it changed solely by professionally qualified personnel. If changing the electric power cable, use solely “HAR H05 VV-F” 3x0.75 mm2 cable with a maximum outside diam- eter of 8 mm. Room thermostat (optional)

NENTLY DAMAGE THE ELECTRONIC BOARD. When connecting time controls or a timer, do not take the power supply for these devices from their breaking con- tacts Their power supply must be by means of direct con- nection from the mains or with batteries, depending on the kind of device. Accessing the electrical terminal block Undo the two screws “A” located on the top part of the control panel and remove the cover. fig. 29 - Accessing the terminal board

3.6 Connection to the flue

The unit must be connected to a flue designed and built in compliance with the current regulations. The pipe between the boiler and flue must be made from material suitable for the purpose, i.e. heat and corrosion resistant. Ensure the seal at the joints.

4. SERVICE AND MAINTENANCE

All adjustment, conversion, commissioning and maintenance operations described be- low must only be carried out by Qualified Personnel (meeting the professional technical requirements of current regulations) such as the personnel of the Local After-Sales Technical Service. FERROLI declines any liability for damage and/or injury caused by unqualified and un- authorised persons tampering with the unit.

TEST mode activation Press the heating buttons (details 3 and 4 - fig. 1) together for 5 seconds to activate the TEST mode. The boiler switches on irrespective of the system or DHW request. The heating symbol (detail 24 - fig. 1) and DHW symbol (detail 12 - fig. 1) flash on the display. fig. 30 - TEST mode To deactivate the Test mode, repeat the activation sequence. The TEST mode is automatically disabled in any case after 15 minutes. Burner adjustment The burner is factory-set as given in table 2. The burner can be set to a different output by acting on the pump pressure, nozzle, head adjustment, and air adjustment as per the following paragraphs. In any case, the new adjusted output must fall within the boiler’s nominal operating range. After making any adjustments, using a combustion analyser check that the CO

content in the fumes is between 11% and 12%. Nozzle flow rate table for oil table 2 gives the oil flow rates (in kg/h) according to the change in pump pressure and nozzles. N.B. - The values given below are only approximate, since nozzle flow rates can vary by ± 5%. Also, with burners having a preheater, the fuel flow rate decreases by about 10%. Table. 2

cod. 3541Q563 - Rev. 00 - 10/2021Pump pressure adjustmentThe pump is factory-set to 12 bar. Use an oil bath gauge to check the pressure. The pres-sure can be adjusted between 11 and 14 bar.fig. 31- Pump ITALPUMPfig. 32- Pump DANFOSS1. Suction Ø1/4”2. Return Ø1/4”3. Oil delivery Ø1/8”4. Pressure adjustment5. Pressure gauge connection Ø1/8”6. Vacuum gauge connection Ø1/8”Combustion head adjustment The head is adjusted by means of the screw 1, according to the indications of the pointer 2.fig. 33Air damper adjustment After loosening the screw 3, operating the screw 1, the combustion air is adjusted ac- cording to the indications of the pointer 2. After adjustment, lock the screw 3. fig. 34Position of electrodes - baffle After fitting the nozzle, check correct positioning of the electrodes and baffle, according to the dimensions given below. It is advisable to check the dimensions after each oper- ation on the head.fig. 35- Position of electrodes - baffle4.2 Commissioning

Checks to be done at first lighting, and after all mainte- nance operations that involved disconnection from the systems or work on safety devices or parts of the boiler: Before lighting the boiler• Open any on-off valves between the boiler and the systems.• Check the tightness of the fuel system.• Check the pre-filling of the expansion tank • Fill the water system and make sure that all air contained in the boiler and the sys-tem has been vented by opening the air vent valve on the boiler and any vent valveson the system.• Make sure there are no water leaks in the system, hot water circuits, connections orboiler.• Make sure the electrical system is properly connected and the earth system worksproperly.• Make sure there are no flammable liquids or materials in the immediate vicinity ofthe boiler.• Fit the pressure gauge and the vacuum gauge on the pump (remove after starting)of the burner.• open the gate valves along the diesel pipeLightingfig. 36 - Starting When the thermostatic line closes, the burner motor starts turning together with thepump: all the oil sucked is sent to the return. The burner blower and the ignition trans-former are also working, therefore the following stages are carried out:• firebox preventilation.• prewash of a part of the oil circuit.• preignition, with discharge between electrode tips.

cod. 3541Q563 - Rev. 00 - 10/2021 At the end of prewash, the unit opens the electromagnetic valve: the oil reaches the noz-zle, where it is finely sprayed.Its contact with the discharge between the electrode tips creates the flame.The safety time begins simultaneously.Unit cyclefig. 37 - Unit cycleR-SB-W Thermostats/Pressure switchesM Burner motorZ Ignition transformerBV Electromagnetic valveFR PhotoresistanceA’ Beginning of ignition with pre-heaterA Beginning of ignition without pre-heaterB Flame presentC Normal operationD Adjustment stop (TA-TC)t1 Pre-ventilation timeTSA Safety timet3 Pre-ignition timet3n Post-ignition timetw Preheating timeOutput signals from the unitNecessary input signalsChecks during operation• Ignite the appliance as described in sec. 2.3.• Check that the fuel circuit and water systems are airtight.• Check the efficiency of the flue and air-fume ducts while the boiler is working.• Check that the water is circulating properly between the boiler and the systems.• Check the proper ignition of the boiler by performing various tests, turning it on andoff with the room thermostat or remote control.• Check that the burner door and fume chamber are tight.• Check that the burner works properly.• Analyse the combustion (with the boiler unit stable) and check that the content of

in the fumes is between 11% and 12%.• Check the parameters are programmed correctly and perform any required custom-ization (compensation curve, power, temperatures, etc.).4.3 MaintenancePeriodical checkTo ensure proper operation of the unit, have it checked yearly by qualified personnel,providing for the following:• The control and safety devices must function correctly.• The fume exhaust circuit must be perfectly efficient.• Make sure there are no obstructions or dents in the fuel supply and return pipes.• Clean the fuel intake line filter.• Check correct fuel consumption• Clean the combustion head in the fuel outlet zone, on the turbulence disc.• Leave the burner operating at max. for about ten minutes, then analyse the combus-tion, checking:- Correct setting of all the elements specified in this manual- Fume temperatures at the flue- CO2 percentage content• The ducts must be free of obstructions and leaks• The burner and exchanger must be clean and free of deposits. For cleaning, do notuse chemical products.• The fuel and water systems must be tight.• The water pressure in the system when cold must be approx. 1 bar; otherwise bringit to that value.• The circulating pump must not be blocked.• The expansion tank must be filled.• Check the magnesium anode and replace it if necessary. The boiler casing, control panel and aesthetic parts can be cleaned with a softand damp cloth, if necessary soaked in soapy water. Do not use any abrasivedetergents and solvents.Accessing the electrode and nozzle

• Disconnect the transformer electrode cables and remove the photoresistance 1, and the union 2 connecting the oil pipe to line 3 of the nozzle. Loosen the screws 4 and pull out the nozzle-baffle-electrode flange assembly.fig. 38
• Undo the screw 5 to remove the baffle and screw 6 to remove the electrodes. Proper cleaning of the nozzle is obtained by removing the filter and cleaning the slots andspraying hole with petrol, rinsing it with fuel oil. When reassembling everything, payattention to the correct positioning of the electrodes-baffle.fig. 39Boiler cleaning1. Disconnect the power supply to the boiler.2. Remove the burner (see preceding section).3. Remove the upper panel.

4. Remove the cleaning door “A” by undoing the nuts “B”.

5. Open the burner door “C” after undoing the nuts “D”.

6. Clean the inside of the boiler and the entire path of exhaust fumes, using a tubebrush, exhauster or compressed air.7. Then close the doors.fig. 40

cod. 3541Q563 - Rev. 00 - 10/2021

Diagnostics The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault, the display will flash together with the fault symbol (detail 22 - fig. 1) indicating the fault code. There are faults that cause permanent shutdowns (marked with the letter "A"): to restore operation, press the RESET button (detail 8 - fig. 1) for 1 second or use the RESET on the remote timer control (optional) if installed; if the boiler does not restart it is necessary to eliminate the fault indicated in the operation LEDs. Other faults cause temporary shutdowns (marked with the letter “F”) which are automat- ically reset as soon as the value returns within the boiler's normal working range. Table. 3 - List of faults Circulating pumsp diagnostics Some faults linked to the circulating pump are signalled by the LED located around the speed selector (fig. 41 - fig. 42). fig. 41 Table. 4 - Circulating pump LED indications Circulating pump diagnostics (model PARA) Some faults linked to the circulating pump are signaled by the LED (fig. 42). fig. 42 Fault code Fault Possible cause Cure A01 Burner block Pump blocked Replace Faulty electric motor Replace Faulty oil valve Replace No fuel in tank, or water on bottom Refill with fuel or suck the water Oil line feed valves closed Open Dirty filters (line-pump-nozzle) Clean Pump unprimed Prime and find the cause of unprim- ing Ignition electrodes not properly adjusted, or dirty Adjust or clean them Nozzle clogged, dirty or deformed Replace Unsuitable head and shutter adjustments Adjust Faulty electrodes or earthed Replace Faulty ignition transformer Replace Faulty electrode wires or earthed Replace Electrode wires deformed by high temper- ature Replace and protect Faulty valve or transformer electrical con- nections Check Broken pump-motor joint Replace Pump inlet connected to return pipe Correct the connection Faulty photoresistance Replace Dirty photoresistance Clean the photoresistance A02 Flame present signal with burner off Photoresistance short circuit Replace the photoresistance Extraneous light strikes the photoresist- ance Eliminate the light source A03 Overtemperature pro- tection activation Heating sensor damaged Check the correct positioning and operation of the heating sensor No water circulation in the system Check the circulating pump (See table table 4) Air in the system Vent the system A04 Card parameter fault Wrong card parameter setting Check the card parameter and mod- ify it if necessary F07 Preheater fault (the contact does not close in 120 seconds) Wiring disconnected Check the wiring F09 Card parameter fault Wrong card parameter setting Check the card parameter and mod- ify it if necessary F10 Delivery sensor 1 fault Sensor damaged Check the wiring or replace the sen- sor Wiring shorted Wiring disconnected F11 DHW sensor fault Sensor damaged Check the wiring or replace the sen- sor Wiring shorted Wiring disconnected F12 Card parameter fault Wrong card parameter setting Check the card parameter and mod- ify it if necessary F14 Delivery sensor 2 fault Sensor damaged Check the wiring or replace the sen- sor Wiring shorted Wiring disconnected F16 Card parameter fault Wrong card parameter setting Check the card parameter and mod- ify it if necessary F34 Supply voltage under 170V. Electric mains trouble Check the electrical system F35 Faulty mains frequency Electric mains trouble Check the electrical system F37 Incorrect system water pressure Pressure too low Fill the system Sensor damaged Check the sensor F39 External probe fault Probe damaged or wiring shorted Check the wiring or replace the sen- sor Probe disconnected after activating the sliding temperature Reconnect the external sensor or disable the sliding temperature F40 Incorrect system water pressure Pressure too high Check the system Check the safety valve Check the expansion tank A41 Sensor positioning Delivery sensor not inserted in boiler shell Check the correct positioning and operation of the heating sensor F42 Heating sensor fault Sensor damaged Replace the sensor F47 System water pressure sensor fault Wiring disconnected Check the wiring Off Circulating pump on STANDBY Green ON Circulating pump Working Green Flashing Air venting cycle Green/Red alternating Circulating pump blocked due to external causes: - Overvoltage (>270V) - Insufficient voltage (<160V) - Motor overload Red Flashing Circulating pump blocked due to internal causes: - Motor blocked - Damaged electronics LED Fault Cause Cure On with red light Fault Blocked rotor Activate manual restart or contact Customer Service Contact/winding Faulty winding Flashing with red light Under/overvoltage Supply side voltage too low/high Check the mains voltage and conditions of use. Request Customer Service Excessive module tem- perature Inside of module too hot Short circuit Motor current too high Flashing with red/ green light Turbine operation The hydraulic system of pumps is fed but the pump does not have mains voltage Check the mains voltage, the water flow/pressure as well as the environmental conditions Dry running Air in pump Overload The motor turns with difficulty. Pump operation not in accord- ance with specifications (e.g. high module temperature). The speed is lower than in nor- mal operation. Min.

cod. 3541Q563 - Rev. 00 - 10/2021fig. 46 - Rear view5.2 Hydraulic circuitfig. 47 - Hydraulic circuit5.3 DiagramsCirculating pumps Head/Pressure loss- Circulating pump head with setting at "fixed speed”.fig. 48A Boiler pressure losses1 - 2 - 3 Circulating pump speed- Circulating pump head with setting at "proportional head”.fig. 49A Boiler pressure losses

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021

LET OP: DE OMGEVINGSTHERMOSTAAT MOET

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO 30/42 K 100/130 UNIT

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021

cod. 3541Q563 - Rev. 00 - 10/2021