Atlas D - Central heating boiler FERROLI - Free user manual and instructions

USER MANUAL Atlas D FERROLI

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

19ES cod. 3541H742 - Rev. 00 - 11/2019

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021

DBM06H cod. 3541H744 - Rev. 00 - 12/2021

The CE marking certifies that the products meet the essential requirements of the rele- vant directives in force. The declaration of conformity may be requested from the manufacturer. This symbol indicates “CAUTION” and is placed next to all safety warnings. Strictly follow these instructions in order to avoid danger and damage to persons, animals and thingsThis symbols calls attention to a note or important notice. 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 disposed of together with domestic waste. Improper management of electric or electronic waste can lead to the leakage of hazardous substances contained in the pro- duct. 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/EU. Separate waste collection and recycling of unused equipment helps to save natural resources and to guarantee that this waste is processed in a manner that is safe for health and the environment. For more information about how to collect electric and electronic equipment and appliances, please contact your local Council or Public Authority competent to issue the relevant permits.

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

This instruction booklet is an integral and essential 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 consulted 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 instructions.

Incorrect installation or inadequate maintenance can result in damage or injury. The manufacturer declines any liability for damage caused by errors 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 special cut-off devices.

In case of a fault and/or poor operation, deactivate the unit and do not try to repair it or directly intervene. Contact professionally qualified personnel. 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 purpose. 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 experience 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.

The unit and its accessories must be appropriately disposed of in compliance with current regulations.

The images given in this manual are a simplified representation of the product. In this representation there may be slight and insignificant differences with respect to the product supplied.ATLAS D 35EN cod. 3541H742 - Rev. 00 - 11/2019

1. GENERAL WARNINGS• Carefully read and follow the instructions contained in this instruction booklet.• After boiler installation, inform the user regarding its operation and give him thismanual, which is an integral and essential part of the product and must be kept withcare for future reference.• Installation and maintenance must be carried out by professionally qualified person-nel, in compliance with the current regulations and according to the manufacturer'sinstructions. Do not carry out any operation on the sealed control parts.• Incorrect installation or inadequate maintenance can result in damage or injury. TheManufacturer declines any liability for damage due to errors in installation and use,or failure to follow the instructions.• Before carrying out any cleaning or maintenance operation, disconnect the unit fromthe electrical power supply using the switch and/or the special cut-off devices.• In case of a fault and/or poor operation, deactivate the unit and do not try to repairit or directly intervene. Contact professionally qualified personnel. Any repair/re-placement of the products must only be carried out by qualified personnel using orig-inal replacement parts. Failure to comply with the above could affect the safety ofthe unit.• This unit must only be used for its intended purpose. Any other use is deemed im-proper and therefore hazardous.• The packing materials are potentially hazardous and must not be left within thereach of children.• The unit must not be used by people (including children) with limited physical, sen-sory or mental abilities or without experience and knowledge of it, unless instructedor supervised in its use by someone responsible for their safety.• The unit and its accessories must be appropriately disposed of, in compliance withthe current regulations.• The images given in this manual are a simplified representation of the product. Inthis representation there may be slight and insignificant differences with respect tothe product supplied.2. 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 is a high-efficiency heat generator for domestic hot water production (optional) and heating, suitable for operation with blown oil or gas burners. The boiler shell consistsof cast-iron elements, assembled with double cones and steel stays. The control systemis with microprocessor and digital interface with advanced temperature control functions. The boiler is arranged for connection to an external storage tank for hotwater production (optional). In this manual all the functions relevant todomestic hot water production are only active with the optional hot watertank connected as indicated in sec. 3.32.2 Control panelPanelfig. 1 - Control panelPanel - legend1 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) Appears on connecting the external probe or the Remote Timer Control (optionals)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 storage 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 on (default setting), the COMFORT symbol (detail 15 - fig. 1) is activated on the display; whereas when off, the ECO symbol (detail 15 - fig. 1) is activatedThe hot water tank can be deactivated by the user (ECO mode) by pressing the eco/ comfort button (detail 7 - fig. 1). To activate the COMFORT mode, press the eco/com- fort button (detail 7 - fig. 1) again.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 areturned off. To avoid damage caused by freezing during long idle periods in win-ter, it is advisable to drain all water from the boiler, DHW circuit and system; ordrain just the DHW circuit and add a suitable antifreeze to the heating system,complying with that prescribed in sec. 3.3.

cod. 3541H744 - Rev. 00 - 12/2021

The CE marking certifies that the products meet the essential requirements of the rele- vant directives in force. The declaration of conformity may be requested from the manufacturer. This symbol indicates “CAUTION” and is placed next to all safety warnings. Strictly follow these instructions in order to avoid danger and damage to persons, animals and things This symbols calls attention to a note or important notice. 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 disposed of together with domestic waste. Improper management of electric or electronic waste can lead to the leakage of hazardous substances contained in the pro- duct. 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/EU. Separate waste collection and recycling of unused equipment helps to save natural resources and to guarantee that this waste is processed in a manner that is safe for health and the environment. For more information about how to collect electric and electronic equipment and appliances, please contact your local Council or Public Authority competent to issue the relevant permits.

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

This instruction booklet is an integral and essential 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 consulted 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 instructions.

Incorrect installation or inadequate maintenance can result in damage or injury. The manufacturer declines any liability for damage caused by errors 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 special cut-off devices.

In case of a fault and/or poor operation, deactivate the unit and do not try to repair it or directly intervene. Contact professionally qualified personnel. 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 purpose. 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 experience 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.

The unit and its accessories must be appropriately disposed of in compliance with current regulations.

The images given in this manual are a simplified representation of the product. In this representation there may be slight and insignificant differences with respect to the product supplied.ATLAS D

cod. 3541H742 - Rev. 00 - 11/2019 Boiler lighting

• Open the fuel on-off valves.

• Switch on the power to the unit. fig. 5 - Boiler lighting

• 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.

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019 If the room temperature is lower than the required value, it is advisable to set a higherorder curve and vice versa. Proceed by increasing or decreasing in steps of one andcheck the result in the room.fig. 13 - Compensation curvesfig. 14 - Example of compensation parallel curve offsetAdjustments 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. 1Water system 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 fault 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 TECHNICALMANUAL, 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 must be installed in a special room with ventilation openings towards the out- side in conformity with current regulations. If there are several burners or extraction units that 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 flammableobjects or materials, corrosive gases, volatile substances or dusts which, sucked by theburner fan, can obstruct the pipes inside the burner or the combustion head. The roommust 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. In par-ticular, after boiler installation with burner on the front door, make sure the frontdoor can open freely without the burner striking walls or other obstacles.3.3 Plumbing connections 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 or collection pipe to pre-vent water spurting onto the floor in case of overpressure in the heating circuit.Otherwise, if the discharge valve cuts in and floods the room, the boiler manu-facturer cannot be held liable.Do not use the water system pipes to earth electrical appliances.Before installation, carefully wash all the pipes of the system to remove any residuals orimpurities that could affect proper operation of the unit. Carry out the relevant connections according to the diagram in and thecap. 5 symbols given on the unit.Water system characteristicsIn the presence of water harder than 25° Fr (1°F = 10ppm CaCO3), use suitably treatedwater 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 systemsor with frequent introduction of replenishing water in the system. If water softeners are installed at the boiler cold water inlet, make sure not toreduce the water hardness too much, as this could cause early deterioration ofthe magnesium anode in the hot water tank.Antifreeze system, antifreeze fluids, additives and inhibitorsThe boiler is equipped with an antifreeze system that turns on the boiler in heating modewhen 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 ofthese fluids or additives guarantees they are suitable for this use and cause no damageto 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 boilerunit and system.Heating 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 disa-bled.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. 3541H742 - Rev. 00 - 11/2019 Connection to a storage tank for domestic hot water productionThe unit's electronic board is arranged for managing an external storage tank for domes-tic hot water production. Carry out the plumbing connections according to the diagram fig. 16 (pumps and non- return valves must be supplied separately). Carry out: electrical connections as shown in the wiring diagram in cap. 5.4. A probe must be usedFERROLI.At the next lighting, the boiler's control system recognises the presence of the hot watertank probe and automatically configures the DHW function, activating the display and rel-evant controls.fig. 16 - Diagram of connection to external hot water tank Key 8 Domestic hot water outlet9 Domestic cold water inlet10 System delivery11 System return3.4 Burner connectionThe oil burner, with blown air for pressurized furnaces, can be used if its operation char-acteristics are suitable for the size of the boiler furnace and its overpressure. The choiceof burner must be made beforehand, following the manufacturer's instructions, accordingto the work range, fuel consumption and pressures, as well as the length of the combus-tion chamber. Install the burner according to the Manufacturer's instructions. The electrical power absorbed by the burner must not exceed the valuegiven in the technical data table.3.5 Electrical connectionsConnection to the electrical grid The unit's electrical safety is only guaranteed when correctly connected to anefficient earthing system executed according to current safety standards. Havethe efficiency and suitability of the earthing system checked by professionallyqualified personnel. The manufacturer is not responsible for any damagecaused by failure to earth the system. Also make sure that the electrical systemis adequate for the maximum power absorbed by the unit, as specified on theboiler 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 andequipped with a bipolar switch whose contacts have a minimum opening of at least 3mm, 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-greenwire) in making connections to the electrical line. During installation or when changingthe 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 person-nel. If changing the electric power cable, use solely “HAR H05 VV-F” 3x0.75mm2 cable with a maximum outside diameter of 8 mm.Room thermostat (optional) IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREECONTACTS. CONNECTING 230 V TO THE ROOM THERMOSTAT TERMI-NALS WILL PERMANENTLY DAMAGE THE ELECTRONIC BOARD.When connecting time controls or a timer, do not take the power supply forthese devices from their breaking contacts Their power supply must be bymeans of direct connection from the mains or with batteries, depending on thekind of device.Accessing the electrical terminal blockUndo the two screws “A” located on the top part of the control panel and remove the cover.fig. 17 - Accessing the terminal board3.6 Connection to the flueThe unit must be connected to a flue designed and built in compliance with current reg-ulations. The pipe between the boiler and flue must be made from material suitable forthe purpose, i.e. heat and corrosion resistant. Ensure the seal at the joints and insulatethe entire pipe between boiler and flue, to prevent the formation of condensate.4. SERVICE AND MAINTENANCEAll adjustment, conversion, commissioning and maintenance operations described be-low must only be carried out by Qualified Personnel (meeting the professional technicalrequirements of current regulations) such as the personnel of the Local After-SalesTechnical Service.FERROLI declines any liability for damage and/or injury caused by unqualified and un-authorised persons tampering with the unit.4.1 AdjustmentsTEST 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. 18 - TEST mode To deactivate the TEST mode, repeat the activation sequence. The TEST mode is deactivated automatically in any case after 15 minutes. Burner adjustmentBoiler efficiency and correct operation depend above all on accurate burner adjustments.Carefully follow the Manufacturer's instructions. The two-stage burners must have thefirst stage adjusted to a power level not below the boiler's rated min. power. The powerof the second stage must not be higher than the boiler's rated max. power.

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

Checks to be made at first lighting, and after all maintenance operations thatinvolved disconnecting from the systems or an intervention on safety devicesor parts of the boiler:Before lighting the boiler• Open any on-off valves between the boiler and the systems.• Check the seal of the fuel system.• Check correct prefilling 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 valve on the boiler and any air valves onthe system. • Make sure there are no water leaks in the system, domestic hot water circuits, con-nections or boiler.• Check correct connection of the electrical system and efficiency of the earthing system• Make sure there are no flammable liquids or materials in the immediate vicinity ofthe boilerChecks during operation• Turn the unit on as described in sec. 2.3.• Check the seal of the fuel circuit and water systems.• Check the efficiency of the flue and air-fume ducts during boiler operation.• Make sure the water is circulating properly between the boiler and systems.• Check correct boiler lighting by performing various tests, turning it on and off withthe room thermostat or remote control.• Make sure the fuel consumption indicated on the meter matches that given in thetechnical data table on sec. 5.3.• Ensure the seal of the fumebox and burner door.• Make sure the burner works properly. This check must be made with the special in-struments, following the manufacturer's instructions.• Check correct programming of the parameters and carry out any required customi-sation (compensation curve, power, temperatures, etc.).4.3 MaintenancePeriodical checkTo ensure proper operation of the unit over time, have qualified personnel carry out ayearly inspection, providing for the following checks:• The control and safety devices must work properly.• The fume exhaust circuit must be perfectly efficient.• Check there are no obstructions or dents in the fuel supply and return pipes.• Clean the fuel suction line filter.• Measure the correct fuel consumption• Clean the combustion head in the fuel outlet zone, on the swirl disc.• Leave the burner on at full capacity for about ten minutes, then analyze the combus-tion, checking:- Correct calibration of all the elements specified in this manual- Temperatures of the fumes at the flue- CO2 percentage content• The fume ducts must be free of obstructions and leaks• The burner and exchanger must be clean and free of deposits. For possible cleaningdo not use chemical products or wire brushes.• The gas 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 abrasive de-tergents and solvents.Boiler cleaning1. Disconnect the power supply to the boiler.2. Remove the front top and bottom panel.3. Open the door by undoing the knobs.4. Clean the inside of the boiler and the entire path of exhaust fumes, using a tubebrush or compressed air.5. Then close the door, securing it with the knob.To clean the burner, refer to the Manufacturer's instructions.4.4 TroubleshootingDiagnosticsThe boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault, thedisplay 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 onthe remote timer control (optional) if installed; if the boiler does not restart it is necessaryto 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. 2 - List of faultsFault code Fault Possible cause Cure A01 Burner block(RESET OCCURS ONLY ON THE BURNER)Refer to the burner manual A02 Card parameter fault Wrong card parameter settingCheck the card parameter and modify it if necessary A03 Overtemperature protection activationHeating sensor damagedCheck the correct positioning and operation of the heating sensorNo water circulation in the system Check the circulating pumpAir in the system Vent the system A04 Card parameter fault Wrong card parameter settingCheck the card parameter and modify it if necessary F07 Wiring fault Connector X5 not connected Check the wiring F09 Card parameter fault Wrong card parameter settingCheck the card parameter and modify it if necessary F10 Delivery sensor 1 faultSensor damagedCheck the wiring or replace the sensorWiring shortedWiring disconnected F11 DHW sensor faultSensor damagedCheck the wiring or replace the sensorWiring shortedWiring disconnected F12 Card parameter fault Wrong card parameter settingCheck the card parameter and modify it if necessary F13 Wiring fault Connector X12 not connected Check the wiring F14 Delivery sensor 2 faultSensor damagedCheck the wiring or replace the sensorWiring shortedWiring disconnected F16 Card parameter fault Wrong card parameter settingCheck the card parameter and modify 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 pres- sure Pressure too low Fill the systemSensor damaged Check the sensor F39 External probe faultProbe damaged or wiring shorted Check the wiring or replace the sensorProbe disconnected after activating the sliding temperatureReconnect the external probe or disable the sliding temperature F40 Incorrect system water pressurePressure too highCheck the systemCheck the safety valveCheck the expansion tank A41 Sensor positioningDelivery sensor not inserted in boiler shellCheck the correct positioning and operation of the heating sensor F42 Heating sensor fault Sensor damaged Replace the sensor F47 System water pressure sensor faultWiring disconnected Check the wiring ATLAS D

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019 Values obtained with burner FERROLI “SUN G6” DK>d>^ϯϳͲ;Ϭ/,:ϰWtͿ ƌWƉƌŽĚƵĐƚĨŝĐŚĞ

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019 Values obtained with burner FERROLI “SUN G10” DK>d>^ϱϬͲ;Ϭ/,:ϱWtͿ ƌWƉƌŽĚƵĐƚĨŝĐŚĞ

cod. 3541H744 - Rev. 00 - 12/2021 ENATLAS D 44EN cod. 3541H742 - Rev. 00 - 11/2019 Values obtained with burner FERROLI “SUN G10” DK>d>^ϲϯͲ;Ϭ/,:ϲWtͿ ƌWƉƌŽĚƵĐƚĨŝĐŚĞ

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019 Values obtained with burner FERROLI “SUN G10” DK>d>^ϳϱͲ;Ϭ/,:ϳWtͿ ƌWƉƌŽĚƵĐƚĨŝĐŚĞ

DBM06H ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021 RUATLAS D 70RU cod. 3541H742 - Rev. 00 - 11/2019

cod. 3541H742 - Rev. 00 - 11/2019

cod. 3541H742 - Rev. 00 - 11/2019

DBM06H ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021 ELATLAS D 73GR cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

cod. 3541H744 - Rev. 00 - 12/2021 ELATLAS D

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

cod. 3541H744 - Rev. 00 - 12/2021 ELATLAS D 77GR cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021 ELATLAS D

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H744 - Rev. 00 - 12/2021 ELATLAS D

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

cod. 3541H742 - Rev. 00 - 11/2019

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021

ATLAS D cod. 3541H744 - Rev. 00 - 12/2021