Atlas D Eco Cond Unit - Boiler FERROLI - Free user manual and instructions

USER MANUAL Atlas D Eco Cond Unit FERROLI

cod. 3541Q464 — Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

ATLAS D ECO COND UNIT

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. COUNTRIES OF DESTINATION: IT ES NL PL GR 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 informa- tion on safe installation, use and maintenance.

• This instruction booklet is an integral and es- sential 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 own- er 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, ac- cording to current regulations and the manu- facturer's instructions.

• Incorrect installation or inadequate mainte- nance 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 mainte- nance 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, deac- tivate the unit and do not try to repair it or di- rectly intervene. Contact professionally qualified personnel. Any repair/replacement of the products must only be carried out by qual- ified 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 prop- er 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 po- tentially 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 ex- perience or the necessary knowledge, only if under supervision or they have received in- structions 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 regulations.

• The images given in this manual are a simpli- fied representation of the product. In this rep- resentation there may be slight and insignificant differences with respect to the product supplied.ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/20211. OPERATING INSTRUCTIONS1.1 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 COND UNIT is a high-efficiency condensing heat generator for heating and domestic hot water production (optional), equipped with a blown oil burner, wet fumechamber and fume heat recuperator in ceramic material. The boiler shell consists of cast- iron elements, assembled with double cones and steel stays. The control system is with microprocessor and digital interface with advanced temperature control functions. The boiler is arranged for connection to an external hot water storagetank (optional). In this manual all the functions relevant to domestic hotwater production are only active with the optional hot water tank connect-ed as indicated in sec. 2.31.2 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.1.3 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 suitable antifreeze to the heating sys- tem, complying with that prescribed in sec. 2.3. Boiler lighting• Open the fuel on-off valves.• Switch on the power to the unit.fig. 5 - Boiler lighting

cod. 3541Q464 - Rev. 00 - 12/2021

• For the next 120 seconds “FH” will be displayed in the upper part of the display, which identifies the heating system air venting cycle.

• During the first 5 seconds the software version of the card will also be shown in the lower part of the display.

• 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 tempera- ture. It is advisable 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 COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021 Adjustments 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. 1 Water system pressure adjustment The filling pressure with system cold, read on the display, must be approx. 1.0 bar. If the system 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-second air venting cycle indicated on the display by FH.

2.1 General Instructions

BOILER 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.

2.2 Place of installation

The 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 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 flammable materials or objects, corrosive gases, powders or volatile substances that, conveyed by the burner fan, can obstruct the internal lines of the burner or the combustion head. The room 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.

2.3 Plumbing connections

Important 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 install shutoff valves between the boiler and heating system allowing the boiler to be isolated from the system if necessary.

The safety valve outlet must be connected to a funnel or collection pipe to prevent water spurting onto the floor in case of overpressure in the heating circuit. Otherwise, if the dis- charge valve cuts in and floods the room, the boiler manufacturer cannot be held liable. Do not use the water system pipes to earth electrical appliances. Before installation, flush all the pipes of the system thoroughly to remove any residuals or impurities that could affect proper operation of the unit. Carry out the relevant connections according to the diagram in cap. 4 and the symbols given on the unit. High efficiency circulating pump Circulating pump adjustment with boiler connected to an external hot water stor- age tank For proper operation of the boiler ATLAS D ECO COND UNIT with it connected to an external hot water storage tank, the speed selector (see fig. 16) must be set to position III. fig. 16 Circulating pump adjustment without a connection to an external hot water stor- age tank The factory setting is suitable for all installations; however a different operation strategy can be set, depending on the characteristics of the system. - Setting Dp-v Proportional head (fig. 17) 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. 18) Heating temperature setting Adjustment can be made from the Remote Timer Control menu and the boiler control panel. DHW temperature adjustment Adjustment can be made from the Remote Timer Control menu and the boiler control panel. Summer/Winter Switchover Summer mode has priority over a possible Remote Timer Control heating demand. Eco/Comfort selection On 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 Temperature Both the Remote Timer Control and the boiler card manage Sliding Tempera- ture adjustment: of the two, the Sliding Temperature of the boiler card has pri- ority. Setting Dp-v Proportional head fig. 17 Setting Fixed speed fig. 18 Min

cod. 3541Q464 - Rev. 00 - 12/2021 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. 19 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. 20 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 ( ). 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 inlet, make sure not to reduce the water hardness too much, as this could cause early deterioration of the magnesium 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. Connection to a storage tank for domestic hot water production The unit's electronic board is arranged for managing an external storage tank for domes- tic hot water production. Make the plumbing connections according to the diagram fig. 21. Carry out: electrical connections as shown in the wiring diagram in cap. 4.5. A probe FERROLImust be used. Carry out the access procedure described below. "Service Menu" The card Service Menu is accessed by pressing the Reset button for 10 seconds. Press the Heating buttons to select "tS", "In", "Hi" or "rE". "tS" means Transparent Pa- rameters Menu, "In" Information Menu, "Hi" History Menu, and "rE" History Menu Reset. Select "tS" and press the Reset button. The card has 20 transparent parameters also modifiable from Remote Control (Service Menu). Press the Heating buttons to scroll the list of parameters in increasing or decreasing or- der. Press the DHW buttons to modify the value of a parameter: the change will be au- tomatically saved. Change parameter P02 of the "Transparent Parameters Menu" to 6. Press the Reset button to return to the Service Menu. Press the Reset button for 10 sec- onds to exit to the card Service Menu. fig. 21 - Diagram of connection to external hot water tank Key 8 Domestic hot water outlet 9 Domestic cold water inlet 10 System delivery 11 System return 95 3-way valve - 2 wires with spring return (not provided) In normal operation, the LED lights up greenLED on/flashing in case of a faultSelected adjustment mode: Proportional head p-v Constant head p-c Fixed speedSelected characteristic curve (1 , 2 , 3 ) within the adjustment modeCombined LED indications during circulating pump venting, manual restart and button lockPress 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. 3541Q464 - Rev. 00 - 12/2021

2.4 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. 22. fig. 22 - 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. 23 - Gravity feed fig. 24 - Suction feed fig. 25 - Siphon feed fig. 26 - Ring feed

2.5 Electrical connections

Connection to the electrical grid

The unit's electrical safety is only guaranteed when correctly connected to an efficient earth- ing system executed according to current safety standards. Have the efficiency and suit- ability of the earthing system checked by pro- fessionally qualified personnel. The manufacturer is not responsible for any dam- age caused by failure to earth the system. Also make sure that the electrical system is adequate for the maximum power absorbed by the unit, as specified on the boiler data- plate. 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 profes- sionally qualified personnel. If changing the electric power cable, use solely “HAR H05 VV-F” 3x0.75 mm2 cable with a maximum outside diameter of 8 mm. Room thermostat (optional)

LY DAMAGE THE ELECTRONIC BOARD. When connecting time controls or a timer, do not take the power supply for these devices from their breaking contacts Their power sup- ply must be by means of direct connection from the mains or with batteries, depending on the kind of device.ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021Accessing the electrical terminal block Undo the two screws “A” located on the top part of the control panel and remove the cover.fig. 27 - Accessing the terminal block2.6 Connection to the flueThe unit must be connected to a flue designed and built in compliance with the currentregulations. The pipe between the boiler and flue must be made from material suitablefor the purpose, i.e. heat and corrosion resistant. Ensure the seal at the joints.2.7 Condensate drain connectionThe unit's condensate drain must be connected to a suitable disposal system. Complywith the specific local and national regulations on discharging condensate water into thewaste water disposal system. For boilers not using exclusively low-sulphur gas oil (Scontent<50 ppm) make sure to provide for a suitable condensate neutralisation device. Connect the condensate drain pipe located at the back of the boiler (ref. A - fig. 28) to the neutralisation device connected to the waste water system. The condensate dis-charge pipes must be acidproof and installed sloping at least 3° towards the drain, with-out any constrictions and obstructions.

IMPORTANT. Fill the trap with water before starting the unit. ATTENTION: The unit must never be oper- ated with the trap empty! Periodically check the water in the trap. fig. 28 - Condensate drain2.8 Conversion of boiler with burner to sealed chamber (only version ATLAS DECO 34 COND UNIT)

ATTENTION: The connection with separate pipes indicated here can be done only and ex- clusively with the sealed chamber kit. A kit is available on request for converting the boiler with burner to sealed chamber. This conversion allows the air necessary for combustion to be sucked directly from the out-side.For installation, refer to the instructions contained in the kit.fig. 29 - Sealed chamber conversion kit After installation, the unit becomes a "C type" with sealed chamber and forced draught. The air inlet and fume outlet must be connected to one of the extraction/suction systems specified below. The unit is approved to operate with all the Cxy flue configurations given in these instructions. Some configurations may be expressly limited or not permitted bylaw, standards or local regulations. Before proceeding with installation, check and care-fully observe the above instructions. Also, comply with the provisions on the positioningof wall and/or roof terminals and the minimum distances from windows, walls, ventilationopenings, etc. Only use ducts in stainless steel, suitable for use with oil-fired condensing heatgenerators.Connection with separate pipesfig. 30 - Examples of connection with separate pipes ( = Air / = Fumes)Before installation, make sure the maximum permissible length has not been exceeded,by means of a simple calculation:1. Completely establish the layout of the system of split flues, including accessoriesand outlet terminals.2. Consult the table 3 and identify the losses in m (equivalent metres) of every com-ponent, according to the installation position.3. Check that the sum total of losses is less than or equal to the maximum permissiblelength in table 2.Table. 2 - Separate ducts

cod. 3541Q464 - Rev. 00 - 12/2021 Table. 3 - Accessories

3. 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- authorized 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. 31 - 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. 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 para- graphs. In any case, the new adjusted output must fall within the boiler’s nominal oper- ating range. After making any adjustments, using a combustion analyser check that the

content in the fumes is between 11% and 12%. Nozzle flow rate table for oil table 4 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. 4 Pump pressure adjustment The 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. 32- Pump ITALPUMP fig. 33- Pump DANFOSS

3. Oil delivery Ø1/8”

4. Pressure adjustment

5. 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

Air adjustment Fume exhaust Vertical Horizontal Ø 80 PIPE

Flow rate at nozzle outlet in kg/h Pump pressure (bar)

cod. 3541Q464 - Rev. 00 - 12/2021 Air 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. 35 Position 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. 36- Position of electrodes - baffle

Checks to be made at first lighting, and after all maintenance operations involving discon- nection from the systems or an operation 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 valves on the system.

• Make sure there are no water leaks in the system, hot water circuits, connections or boiler.

• Make sure the electrical system is properly connected and the earth system works properly.

• Make sure there are no flammable liquids or materials in the immediate vicinity of the 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 pipe Start-up fig. 37 - Starting

When the thermostatic line closes, the burner motor starts turning together with the pump: 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.

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 cycle fig. 38 - Unit cycle R-SB-W Thermostats/Pressure switches OH OIl pre-heater OW Operation enabling contact M Burner motor Z Ignition transformer BV Electromagnetic valve FR Photoresistance A’ Starting with pre-heater A Starting without pre-heater B Flame present C Normal operation D Adjustment stop (TA-TC) t1 Pre-ventilation time TSA Safety time t3 Pre-ignition time t3n Post-ignition time tw Pre-heating time Output signals from the unit Necessary input signals Checks during operation

• Ignite the appliance as described in sec. 1.3.

• 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 and off 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%.

Periodical check To ensure correct operation of the unit over time, have qualified personnel carry out a yearly check, providing for the following:

• The control and safety devices must function correctly.

• The fume exhaust circuit must be perfectly efficient.

• Check there are no obstructions or dents in the fuel supply and return pipes.

• Clean the filter of the fuel suction line.

• Measure the correct fuel consumption

• Clean the combustion head in the fuel outlet zone, on the swirl disc.

• Leave the burner running at full rate for approximately ten minutes, then analyse the combustion, checking: - All the elements specified in this manual are set correctly - Temperatures of the fumes at the flue - CO2 percentage content

• The air-fume end piece and ducts must be free of obstructions and leaks

• The burner and exchanger must be clean and free of deposits. For possible clean- ing do not use chemical products or wire brushes.

cod. 3541Q464 - Rev. 00 - 12/2021• The gas and water systems must be airtight.• The water pressure in the cold water system 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. 39
• 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. 40Boiler cleaning1. Disconnect the power supply to the boiler.2. Remove the burner as described above.

3. Remove the panels “E” and “F” undoing the respective nuts.

4. Clean the inside of the boiler and the entire path of exhaust fumes, using a tubebrush or compressed air.5. Close the panels.fig. 41Cleaning the fume recuperatorTo clean the fume recuperator:• Remove the cover B.• Remove the fume recuperator closing covers C.• Carefully clean the inside of the recuperator using an aspirator.• If particularly dirty, a suitable device for spraying water inside can be used. In thiscase, make sure large amounts of water do not come into contact with the cast iron elements in the smoke chamber. Run the water through the condensate drain D af- ter disconnecting the trap.fig. 42 - Cleaning the recuperatorPositioning of combsAfter cleaning the recovery unit make sure the combs are positioned correctly, as shown in fig. 43. Tighten the nuts on the compressor disk "A" respecting the torque setting of 0.6 Nm. If a torque wrench is unavailable, check that there is a fume passage of 1 mmbetween the coils.fig. 43 - Positioning of combs

cod. 3541Q464 - Rev. 00 - 12/2021

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 the cause permanent shutdowns (marked with the letter “A”): to restore operation, just 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 nec- essary 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. ATTENTION From software version 23, an additional feature has been introduced to facilitate burner calibration, i.e. flame flashing on the display to indicate that the burner is on but with in- dication of non-optimal flame. For the various software versions, the meanings of the symbols shown on the display can be found in the table 1. Table. 5- Flame symbol indications Table. 6 - List of faults Indication on the display and meaning Software Version Flame Off Flame On Steady Flame Flashing

Burner off Burner on

Burner off Burner on and indication of stable flame Burner on with indication of NOT optimal flame 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 bot- tom 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 unpriming 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 temperature Replace and protect Faulty valve or transformer elec- trical connections 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 photoresist- ance Extraneous light strikes the pho- toresistance Eliminate the light source A03 Overtemperature protection activa- tion Heating sensor damaged Check the correct position- ing and operation of the heating sensor No water circulation in the sys- tem Check the circulating pump (See table 7

cod. 3541Q464 - Rev. 00 - 12/2021 Circulating pump diagnostics Some faults linked to the circulating pump are signalled by the LED located around the speed selector (fig. 44 - fig. 45). fig. 44 Table. 7 - Circulating pump LED indications Circulating pump diagnostics (model PARA) Some faults linked to the circulating pump are signaled by the LED (fig. 45). fig. 45

4. TECHNICAL DATA AND CHARACTERISTICS

4.1 Main components, dimensions and connections

fig. 46- Front view fig. 47- Side view Off Circulating pump on STANDBYGreen ONCirculating pump WorkingGreen FlashingAir venting cycleGreen/Red alternatingCirculating pump blocked due to external causes:- Overvoltage (>270V)- Insufficient voltage (<160V)- Motor overloadRed FlashingCirculating pump blocked due to internal causes:- Motor blocked- Damaged electronicsLED Fault Cause CureOn with red lightFault Blocked rotorActivate manual restart or contact Customer ServiceContact/winding Faulty windingFlashing with red lightUnder/overvoltage Supply side voltage too low/highCheck the mains voltage and conditions of use.Request Customer ServiceExcessive module tem-peratureInside of module too hotShort circuit Motor current too highFlashing with red/green lightTurbine operationThe hydraulic system of pumps is fed but the pump does not have mains voltageCheck the mains voltage, the water flow/pressure as well as the environmental conditionsDry running Air in pumpOverloadThe 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. 3541Q464 - Rev. 00 - 12/2021fig. 48 - Rear viewa4 Flue Ø 10010 System delivery - Ø 3/4”11 System return - Ø 3/4”14 Heating safety valve32 Heating circulating pump36 Automatic air vent56 Expansion tank193 Trap246 Pressure transducer275 Drain - Ø 1/2”278 Double sensor (Safety + heating)295 Burner338 Fumes recuperator4.2 Water circuitfig. 49 - Water circuit4.3 DiagramsCirculating pumps Head/Pressure loss- Circulating pump with "fixed speed" setting.fig. 50A Boiler pressure losses1 - 2 - 3 Circulating pump speed- Circulating pump with "proportional head" setting.fig. 51A Boiler pressure losses

Item Useful heat out putUseful efficiencyAuxiliary electricity consumptionOther items Seasonal space heating energy efficiency class (from A+++ to D) Rated heat outputSeasonal space heating energy efficiency Useful heat output at rated heat output and high-temperature regime (*) Useful heat output at 30% of rated heat output and low-temperature regime (**) Useful efficiency at rated heat output and high-temperature regime (*) Useful efficiency at 30% of rated heat output and low-temperature regime (**) At full loadAt part loadIn standby modeStandby heat lossIgnition burner power consumptionAnnual energy consumptionSound power levelEmissions of nitrogen oxidesTrademark: FERROLICondensing boiler: YESLow-temperature boiler (**): YESB1 Boiler: NOCombination heater: NOCogeneration space heater: NOSymbol Unit Value

(*) High-temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature (at heater inlet).

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

OFFSET = 20 OFFSET = 40ATLAS D ECO COND UNIT

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021

cod. 3541Q464 - Rev. 00 - 12/2021