AIC NESTA 120 Installation And Maintenance Manual

AIC NESTA 120 Installation And Maintenance Manual

Floor — standing condensing boiler
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installation
and maintenance
manual
FOR THE INSTALLER AND THE USER
NESTA
120·160·200·250 kW
FLOOR — STANDING CONDENSING BOILER
EN

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Summary of Contents for AIC NESTA 120

  • Page 1 installation and maintenance manual FOR THE INSTALLER AND THE USER NESTA 120·160·200·250 kW FLOOR — STANDING CONDENSING BOILER...
  • Page 2: Table Of Contents

    .......G-9 Engineering the Chimney System ....I-42 roduct escrIPtIon Accessories ............. I-42 Nesta 120 - 160 - 200 - 250 ......G-9 General Description ..........G-9 Safety Instructions for the Gas Connection ..I-43 Frost Protection ............G-9 Gas Conversion ..........I-44 Safety Devices ............G-9 Preparing the Boiler for Gas Conversion ....I-45...
  • Page 3 .. I-66 ddItIonal nformatIon for the nstaller Optional Modules ..........I-66 Additional Heating Circuit Modules & Cable Hub ..I-66 Web Server Module ..........I-66 Cascading module ...........I-66 Boilers in a Cascade System ......I-67 Boiler Settings for the Installer ......I-70 Access Levels ............I-70 Commissioning Menu ..........I-70 Menus and Settings ..........I-70...
  • Page 4: I Ndex Of I Llustrations

    Fig. 1. Boiler Packaged for Transport ......G-8 Fig. 2. Data Plate - Typical ..........G-8 Fig. 3. Nesta 120-160 Boiler Components - Front and Rear Views ..........G-10 Fig. 4. Nesta 200-250 Boiler Components - Front and Rear Views ..........G-11 Fig.
  • Page 5: G Eneral I Nformation

    eneral nformatIon Liabilities of the Manufacturer, the Installer and the End user Manufacturer The installer shall provide the end-user with: Any relevant explanation about the op- î Our products are manufactured in compliance eration of the appliance and the heat- with the requirements of the applicable Europe- ing system as well as the safety devices an Directives and standards, and are therefore...
  • Page 6: About This Manual

    eneral nformatIon About this Manual This documentation is part of the product. It will be handed over to the end-user who will keep it, with all the other applicable documents, in a safe place and readily available for use. Before installing, operating or maintaining the appliance, please carefully read this manual and all the applicable documents provided with the components and accessories.
  • Page 7: Safety Instructions

    eneral nformatIon Safety Instructions IF YOU SMELL GAS: → DO: → DO NOT: Close the gas supply î Use an open fl ame î Open all doors and windows to î Smoke î ventilate the room î Use electrical devices (phones, î...
  • Page 8: Package Contents

    AIC Europe B.V. Please read installation and The boiler is pre-adjusted in Graafschap Hornelaan 163A...
  • Page 9: P Roduct D Escription

    Nesta 120 - 160 - 200 - 250 General Description Safety Devices This floor-standing series of Nesta boilers consists of The Nesta boilers are equipped with a series of compact, low-emission condensing appliances with a sensors and switches that provide safety for your pre-mix burner and a stainless steel heat exchanger.
  • Page 10 Fig. 3. Nesta 120-160 Boiler Components - Front and Rear Views Air inlet duct 16. Control panel with LCD display Fan and burner assembly 17. Burner plate temperature limit switch Ignition electrode 18. Air adapter Hoisting ring 19. Gas valve Water pressure sensor 20.
  • Page 11 roduct escriPtion Fig. 4. Nesta 200-250 Boiler Components - Front and Rear Views Air inlet duct 16. Control panel with LCD display Fan and burner assembly 17. Burner plate temperature limit switch Ignition electrode 18. Air adapter Hoisting ring 19. Gas valve Water pressure sensor 20.
  • Page 12: Control Panel And Main Functions

    roduct escriPtion Control Panel and Main Functions Fig. 5. Control Panel Chimney sweep function button - This button allows to Domestic Hot Water on/off button - Pressing this button ac- perform a measurement of the flue gas contents. tivates/deactivates of the Domestic Hot Water function ( Manual operation mode button - The operation de- LCD Display - The display illuminates whenever a control pends on the function defined for the relays (Expert Lev-...
  • Page 13: Symbols And Messages On The Control Panel

    roduct escriPtion Symbols and Messages on the Control The following symbols are displayed on the screen Panel (See Fig. 6): The following symbols are present on the control ). The time scale ( Comfort mode active ( panel (See Fig. 6): at the bottom of the display indicates the period during which this mode is active (in Domestic Hot Water mode.
  • Page 14: Echnical Pecifications

    echnIcal PecIfIcatIons Dimensions and Clearances 671 mm 631 mm 648 mm Dimensions & weights N 120 FS N 160 FS N 200 FS N 250 FS 1,324 1,324 1,324 1,324 1,307 1,321 1,309 1,313 1,098 1,098 1,098 1,098 dry weight G-14 A-070336_EN •...
  • Page 15 echnical pecificaTionS N 120 FS N 200 FS Connections N 160 FS N 250 FS supply/return connections ( ) Ø - [M] safety group connection ( ) Ø - [F] gas connection ( ) Ø - [M] G 3/4 flue gas exhaust connection Ø combustion air inlet connection Ø...
  • Page 16: Performance And Efficiency Data

    echnical pecificaTionS N 120 FS N 160 FS N 200 FS N 250 FS Performance and Efficiency Data (min. - max.) (min. - max.) (min. - max.) (min. - max.) 11.2 - 115.5 19.0 - 150.0 25.0 - 190.0 25.5- 232.0 heat input (net) 28.9 - 115.5 37.9 - 150.0...
  • Page 17: Combustion Data

    echnical pecificaTionS N 120 FS N 160 FS N 200 FS N 250 FS Combustion Data (min. - max.) (min. - max.) (min. - max.) (min. - max.) chimney type(s) B 23 - B 23P - C 43 - C 53 - C 63 - C 83 flue gas temperature at 80/60°C °C 52 - 60...
  • Page 18 echnical pecificaTionS N 120 FS N 160 FS N 200 FS N 250 FS Gas Data (min. - max.) (min. - max.) (min. - max.) (min. - max.) gas type(s) G20 - G25 - G25.1 - G25.3 - G31 G20 (20 mbar) mbar 17 - 25 G25 (25 mbar)
  • Page 19: Hydraulic Data

    echnical pecificaTionS Hydraulic Data N 120 FS N 160 FS N 200 FS N 250 FS water content hydraulic pressure drop at ∆T = 20k mbar minimum operating pressure maximum operating pressure maximum boiler supply temperature °C Pressure Drop Curve N 200 FS / N 250 FS N 120 FS / N 160 FS...
  • Page 20: I Nstructions For The U Ser

    nstructIons for the Safety Instructions for the User IF YOU SMELL GAS: → DO NOT: → DO: Close the gas supply î Use an open fl ame î Open all doors and windows to ven- î Smoke î tilate the room î...
  • Page 21: Periodic Checks

    nstructIons for the Periodic checks If works need to be per- î formed close to the appli- ance (e.g. in the boiler room Check regularly that the wa- î or close to the air inlets), ter pressure of the system is make sure that the appli- at least 1.2 bar when cold.
  • Page 22: Starting The Appliance

    nstructIons for the Starting the Appliance Stopping the Appliance The first start-up of the boiler after its in- Conditions: stallation must be performed by a qual- None ified professional, according to the pro- cedure in “Start-up and Combustion Procedure: Adjustments” on page I-55. Push the On/Off switch located on the right side of the boiler.
  • Page 23: What To Do If

    nstructIons for the Cause Action What to Do if... 1. Check that the power button is in ON position (pushed in and illuminated). 2. Make sure the power supply is connected to the Boiler does not start No power supply mains.
  • Page 24: Basic Settings

    nstructIons for the Basic Settings Setting Procedure Controls/Screens Press the Heating mode selection button to toggle from one Heating mode mode to the other: selection • Automatic mode ( ) (to be programmed, refer to “Boiler Settings for the Installer” on page I-70. •...
  • Page 25 nstructIons for the Setting Procedure Controls/Screens Press the OK button (2) to access the end user menu. Times of start and end of Rotate the knob (1) to scroll through the menu until “Time Program heating circuit 1” (5) is highlighted. comfort mode schedule Press the OK button (2) to validate the selection...
  • Page 26 nstructIons for the Setting Procedure Controls/Screens Press the OK button (2) to access the end-user menu. Language Selection Rotate the knob (1) to scroll through the menu until “Operator Section” (9) is highlighted. Press the OK button (2) to validate the selection Rotate the knob (1) to select the required language (DE, EN, FR, IT, NL, ES, DA, SV, FI, PT).
  • Page 27: Structure Of Menus For The End User

    nstructIons for the Structure of Menus for the End User Some parameters are only visible if the heating circuit is installed Top menu Submenu 1 Submenu 2 Default Time of day and date Hours / Minutes 01:00 (hh:min) Ҙ (Adjust as required) Day / Month 01.01 (dd.mm) Ҙ...
  • Page 28 nstructIons for the Top menu Submenu 1 Submenu 2 Default Heating circuit 1 Room comfort setpoint 20°C Ҙ Room reduced setpoint 16°C Ҙ Room frost protection 10°C Ҙ setpoint Heating curve slope Ҙ Summer/winter heating limit 18°C Ҙ Flow temp setpoint room 65°C Ҙ...
  • Page 29: Safety Instructions For The Installation

    roduct nstallatIon Safety Instructions for the Installation When the appliance is con- î nected to the electrical net- All connections (electrical, fl ue pipe, î work, it must be earthed. hydraulic, gas) must be carried out Make sure that a fuse or circuit breaker in accordance with current standards î...
  • Page 30: Handling The Product

    roduct nstallatIon Handling the Product Move the appliance carefully to its final po- sition. Make sure to comply with the recom- This appliance is heavy and î mended clearances (See “Dimensions and requires sufficient work- Clearances” on page G-14). force to move and handle it, If some height is required for condensate flow as well as an appropriate means of transport.
  • Page 31: Removing And Installing The Access Panels

    roduct nstallatIon Removing and Installing the Access Panels Top panel Conditions: Push the top panel downwards to engage Tools and Material: the studs into their receptacles. î Wrench, hex head, size 4 Side Panels Removal Procedure: Bottom: install six retained screws. Bottom Front Panel Top : Install four retained screws.
  • Page 32: Requirements For The Hydraulic Connections

    roduct nstallatIon Requirements for the Hydraulic Connec- tions It is recommended to install î the following devices in the system to prevent water contamination : Make sure that the circuit is provided with Water fi lter and/or dirt separator in- î...
  • Page 33: Water Quality Requirements To Prevent Scaling And Corrosion In A Heating System

    roduct nstallatIon Water Quality Requirements to Prevent Scaling and Corrosion in a Heating System To prevent the formation of scale and sludge in a Additives can be used to keep the oxygen in î closed heating circuit through the penetration of ox- solution in the water.
  • Page 34 roduct nstallatIon Water Parameters Graph description: Above the curves, water treatment is In addition to the water hardness, other pa- Ÿ î required rameters of the water must be checked. Treat the water if the measured values are outside Below the curves, fi ll with untreated tap Ÿ...
  • Page 35: Typical Hydraulic Connections - Heating Circuit

    roduct nstallatIon Typical Hydraulic Connections - Heating Circuit Isolating valve Filling valve Draining valve Check valve Expansion vessel Safety group (automatic air relief valve, manometer, safety valve), con- nected to the drain Circulating pump Removable fi lling hose Drain Fig. 11. Typical Heating System To make maintenance easier, we recommend to remove the plug from the drain connection and install an optional draining valve (see “Fig.
  • Page 36: Hydraulic Connections - Cascaded Boilers, With External Domestic Hot Water Tank And Plate Heat Exchanger

    roduct nstallatIon Hydraulic Connections - Cascaded boilers, with External Domestic Hot Water Tank and Plate Heat Exchanger Isolating valve Heating circuit pump Filling valve DHW circuit pump Draining valve Check valve Motorised 3-way valve (when needed for low temp systems) Expansion vessel Heating circuit Safety group (automatic air relief valve, manome-...
  • Page 37: Hydraulic Connections - Cascaded Boilers, With External Domestic Hot Water Tank And Low Loss Header

    roduct nstallatIon Hydraulic Connections - Cascaded boilers, with External Domestic Hot Water Tank and Low Loss Header Isolating valve Heating circuit pump Filling valve DHW circuit pump Draining valve Check valve Motorised 3-way valve (when needed for low temp systems) Expansion vessel Heating circuit Safety group (automatic air relief valve, manome-...
  • Page 38: Safety Instructions For The Chimney Connections

    (at least 40 mm) between the malfunction. Please contact appliance fl ue piping and combustible your AIC Technical Support materials, and between the fl ue pipe for more information. and air inlet pipe if the latter is made of A condensation outlet connected to the î...
  • Page 39 roduct nstallatIon Plastic fl ue pipes should be î Flue pipe elements or PP air î allowed to expand under the inlet elements should not be eff ect of heat. Leave about screwed together. 10 mm between the pipe and the sleeve end stop.
  • Page 40: Chimney Connection

    roduct nstallatIon Chimney Connection Description C (Closed) Appliance connected via its two ducts to a common duct system (part of the building) designed for more than one appliance. The common duct system consists of two ducts connected to a terminal, which at the same time admits fresh air to the burner and discharges the products of combustion to the outside through orifi ces that are either concentric or close enough to come under similar wind conditions.
  • Page 41: Silencer Installation In Open Chimney Systems (B

    Before installation, check on silenc- î er sticker that it is the correct com- ponent for the boiler model. If not, contact your AIC representative. Be aware that the presence of the si- î lencer (B-type chimney connection) af- fects the fan speed setting when carry- ing out a gas conversion.
  • Page 42: Engineering The Chimney System

    Make sure to install the boiler with the short- î est length of combustion air and flue ducts. When several boilers need to be connected î to a common duct, please contact your AIC representative for more information. I-42 A-070336_EN • B_0821...
  • Page 43: Safety Instructions For The Gas Connection

    After gas circuit connection, check Nesta 120-160 Gas valve î that there is no leak. Use a gas detection device or per- î...
  • Page 44: Gas Conversion

    roduct nstallatIon Gas Conversion Connection of the boiler to a î G31 gas system should com- ply with local regulations and Conversion of the appliance î requirements. from one gas type to another can If the boiler was running before con- î...
  • Page 45: Preparing The Boiler For Gas Conversion

    Preparing the Boiler for Gas Conversion The boilers are adjusted in factory to î operate with natural gas (G20). When Nesta 120 and 160 boilers Conditions: î need to operate with propane, the gas valve shutter (1) and offset (2) Tools and material: screws must be adjusted.
  • Page 46: Adjustment Of Fan Speeds

    roduct nstallatIon Adjustment of Fan Speeds 9. Rotating the knob ( ), adjust the ignition fan Conditions: speed for the gas type, boiler type and chim- Table 1 and Table 2 on ney type. Refer to Adjustment Procedure (Fig. 18) page I-44.
  • Page 47 roduct nstallatIon Combustion Adjustment for Gas Conversion Conditions: Check CO contents in the flue gas at max. Tools and material: output as follows: î Flue gas analyser î Press the Information button (2). The mod- î Screwdriver, flat head ulation indicator (5) is displayed (in %). î...
  • Page 48 roduct nstallatIon î If the value is outside the range, adjust the combustion value by turning the gas valve shutter (6) in small steps, to allow the val- ue to stabilise before performing additional adjustments. Decrease CO î N 120 - 160 FS: Increase - Rotate shutter screw (6) counter-clock- wise to increase the CO...
  • Page 49: Safety Instructions For The Electrical Connections

    roduct nstallatIon Connections Safety Instructions for the Electrical Connections Any damaged power supply cable must be replaced using cables as described below and installed by a qualified professional. Electrical connections must be carried The cross-section of the wires should out by a qualifi ed professional in accord- be >1.5 mm , equipped with sleeves at ance with current standards and regula-...
  • Page 50: Accessing The Low Voltage Terminal Strip And Electronic Board

    roduct nstallatIon Accessing the Low Voltage Terminal Strip and Electronic board Conditions: Tools and material: î Wrench, hex head, size 4 Procedure: Remove center front panel, see “Removing and Installing the Access Panels” on page I-31. Remove one screw ( ) at the bottom of the electronic bay access panel.
  • Page 51: Accessing The High Voltage Terminal Strip

    roduct nstallatIon Accessing the High Voltage Terminal Strip Routing the Cables Make sure that the power supply to the appliance is deactivated (power supply cable disconnected from the boiler) before accessing the high voltage terminal strip. Route Conditions: voltage cables Route high through these...
  • Page 52: Wiring Diagram

    roduct nstallatIon Wiring Diagram Flue Gas Temperature pressure Door Tem Gas Valve Sensor switch Limit GNYE Grounding Strip Front Ignition Ignition Transformer E5 G2 Electrode High Voltage Cable GNYE GNYE Safety Water Temperature Switch 8 9 10 11 12 N L N L Ignition module valve...
  • Page 53 roduct nstallatIon Door Temp Condensate Limit Front Panel 1 Level Switch BX1 System temp. sensor /Multifunctional DHW Sensor Outside sensor H1 Enable/Disable /Multifunctional BX2 Cascade return temp. sensor /Multifunctional X15 Boiler pump PWM UX2 Analog output 0-10V UX3 Analog output 0-10V P= 3W 24V DC...
  • Page 54: Ommissioning

    ommIssIonInG Safety Instructions Before Start-up Filling the System Conditions: Procedure: Check that all connections (electrical, î fl ue pipe, hydraulic, gas) have been 1. Connect the fi lling hose ( ) to the system carried out and that they are tight and fi...
  • Page 55: Start-Up And Combustion Adjustments

    î Press the heating mode selection button ( Increase CO to exit and go back to the home screen. Nesta 120 - 160 Activate the required heating mode by press- ing the heating mode selection button ( Allow the boiler to operate for a few minutes.
  • Page 56: M Aintenance

    aIntenance Safety Instructions for Maintenance The maintenance of the ap- î pliance and its components must be carried out by a qualifi ed professional. Inspection and maintenance tasks î Defective parts and components may î must be carried out by a qualifi ed and only be replaced by genuine factory certifi...
  • Page 57: Maintenance Requirements

    aintenance Maintenance Requirements @ inspection @ maintenance Tasks (1 year) (2 years max) Check that the boiler room ventilation / boiler air and flue ducts are unobstructed. Verify flue gas and combustion air ducts are in good condi- tion, sealed tight and properly supported. Open the front panel and check the general condition inside the cabinet.
  • Page 58: Shutting Down For Maintenance

    aintenance Shutting Down for Maintenance Restarting after Maintenance Conditions: Conditions: None Procedure: Procedure: Push in the On/Off switch located on the Push the On/Off switch located on the right side of right side of the boiler. the boiler. When in the On position, the switch re- When in the OFF position, the switch mains pushed in and is illuminated.
  • Page 59: Cleaning The Condensate Pipe And Trap

    aintenance Cleaning the Condensate Pipe and Trap Remove the cover gasket ( ). Discard. Wipe clean the condensate level switch ( Conditions: attached to the cover. Remove and replace as required. Clean the deposits in the condensate trap ( Tools and material: using clear water and a cloth.
  • Page 60: Removing And Installing The Fan And Air Adapter Assembly

    Discard and replace the O-ring if it is dirty or cracked. Release four nuts (7) securing the fan and air Nesta 120 adapter assembly (1) to the burner assembly. Remove the fan and air adapter assembly (1) and its hardware. Retain for reinstallation.
  • Page 61 aintenance Reconnect all connectors to the electrodes, Follow-on task(s): burner plate limit switch, gas valve and fan. Close all panels, refer to “Removing and In- Reconnect the air hose to the gas valve and air stalling the Access Panels” on page I-31. inlet port.
  • Page 62: Removing And Installing The Ignition And Ionization Electrodes

    aintenance Removing and Installing the Ignition and Release two screws ( ) from the electrode Ionization Electrodes flange. Remove the electrode and screws from the burner plate ( ). Discard, as required. Conditions: Remove electrode gasket ( ) and discard, as Tools and material: required.
  • Page 63: Removing And Installing The Burner

    aintenance Removing and Installing the Burner Conditions: Clean the combustion chamber, see “Check- ing and Cleaning the Combustion Cham- ber” on page I-64. î Fan and air adapter assembly removed, refer to “Removing and Installing the Fan and Air Installation procedure: Adapter Assembly”...
  • Page 64: Checking And Cleaning The Combustion Chamber

    aintenance Checking and Cleaning the Combustion Replacing the Gas Valve Filter Chamber Conditions: Conditions: î Left side top panel removed, refer to “Removing and Installing the Access Panels” on page I-31. î Burner removed, see “Removing and Install- ing the Burner” on page I-63. Cleaning Procedure (Fig.
  • Page 65: Checking The Flue Gas (Fps) And Air (Aps) Pressure Switches Operation

    aIntenance Checking the Flue Gas (FPS) and Air (APS) FPS: blow air into the hose while it is con- nected to the flue pressure switch and to the Pressure Switches operation measuring device. APS: suck air from the hose while it is con- Conditions: nected to the air pressure switch and to the measuring device.
  • Page 66: A Dditional I Nformation For The I Nstaller

    ddItIonal nformatIon for the nstaller Optional Modules Additional Heating Circuit Modules & Cable Web Server Module Through the use of this module, you can connect Nesta boilers can control 3 heating circuits with to an Ethernet and get remote access to the boiler mixing functions, using 3 extension modules.
  • Page 67: Boilers In A Cascade System

    ddItIonal nformatIon for the nstaller Boilers in a Cascade System This boiler has all the logic control of the cascaded system and also regulates the stop/start sequence In a heating system comprised of several boilers, it of each boiler according to the demand of the in- is important that the power generated by the boilers stallation.
  • Page 68 dditionAl nformAtion for the nstAller I-68 A-070336_EN • B_0821...
  • Page 69 dditionAl nformAtion for the nstAller I-69 A-070336_EN • B_0821...
  • Page 70: Boiler Settings For The Installer

    dditionAl nformAtion for the nstAller Boiler Settings for the Installer Commissioning Menu Access Levels When starting up the boiler for the first time, a com- missioning screen will come up. It can be exited Three different levels of settings are available for the without adjustments by pressing the ESC ( ) button.
  • Page 71 dditionAl nformAtion for the nstAller Top menu Level Pgm No. Submenu 1 Submenu 2 Default Setting Operator Operation HC2 Jointly with HC1 Ҙ Ÿ Jointly Section Independently Ÿ with HC1 (Cnt’d) Operation HC3/P Jointly with HC1 Jointly Ҙ Ÿ with HC1 Independently Ÿ...
  • Page 72 dditionAl nformAtion for the nstAller Top menu Level Pgm No. Submenu 1 Submenu 2 Default Setting Room comfort setpoint Heating Ҙ 20.0°C circuit 1 Room reduced setpoint Ҙ 16.0°C Room frost protection Ҙ 10.0°C setpoint Comfort setpoint max Ҙ 35.0°C Heating curve slope Ҙ...
  • Page 73 dditionAl nformAtion for the nstAller Top menu Level Pgm No. Submenu 1 Submenu 2 Default Setting Excess heat draw Heating cir- Ҙ Ÿ Heating mode Always cuit 1 (Cnt’d) Ÿ Always Ÿ With buffer Ҙ Ÿ Ÿ With prim contr/system Ҙ...
  • Page 74: Error Codes And Solutions

    Check connection and/or sensor. Re- Outside temperature sen- place as required. sor error Emergency operation Contact AIC technical support. Boiler temperature 1, Short circuit or Open circuit Check connection and sensor. Re- sensor error boiler fl ow sensor. place as required.
  • Page 75 BSB RF communication Check bus connection and compo- error nents. Internal fault in controller, pro- Data overrun in EEPROM Contact AIC technical support. cess sensor Extension module 1, error Check extension module connections. Extension module 2, error Check extension module connections.
  • Page 76 Check connection and component Lack of gas, Reset, if the fault re-occurs more than 3 times, contact AIC technical support. Safety time for establish- ment of fl ame exceeded Check ignition electrode and ionization Polarity of mains connection,...
  • Page 77 dditionAl nformAtion for the nstAller Error Fault description Explanation Action(s) code Unit in parametrization Wait until parametrization process is mode complete Start prevention signal Short circuit or Open circuit fl ue Check connection and sensor. Replace input pressure switch. as required. Check automatic refi ll system.
  • Page 78 3 times inform AIC technical suport. Internal repetition Contact AIC technical support Repetition speed Contact AIC technical support Shut off gas supply and contact AIC Extraneous light technical support Mains undervoltage Check electric supply in boiler terminals Fan speed tolerance Check air supply Check connection and sensor.
  • Page 79: Maintenance Messages

    dditionAl nformAtion for the nstAller Error Fault description Explanation Action(s) code Verify pump Dynamic water pressure Expansion tank is defective too high Replace expansion tank Dynamic water pressure Verify pump too low Sensor primary heat ex- Check connection and sensor. Replace changer as required.
  • Page 80: Troubleshooting

    dditionAl nformAtion for the nstAller Troubleshooting Problem Cause(s) Solution(s) 1. Check that the power button is in ON position (pushed in and illuminated) 2. Make sure the power supply cable is Boiler does not start No power supply connected to the mains 3.
  • Page 81 dditionAl nformAtion for the nstAller Problem Cause(s) Solution(s) Gas valve malfunction Burner does not start after receiving Fan malfunction Check wiring connections Check components signal from boiler controller Ignition/ionization electrode mal- function Check the values with a gas analyser and Combustion chamber gets dirty Wrong combustion settings readjust as required.
  • Page 82: Installation Checklist

    dditionAl nformAtion for the nstAller Installation Checklist Unit Values/Comments General/heating system Type of building/system Commercial purpose (Y/N) ? Year of manufacture Output of system Heated surface m² Number of heating circuits: • Floor heating • Radiators • Other Cascade (Y/N)? Number of boilers? Water Water hardness at start up mol/m³...
  • Page 83 dditionAl nformAtion for the nstAller Unit Values/Comments Plate heat exchanger in the system (Y/N)? Type? Low loss header in system (Y/N)? Type ? Number of mixers ? Buff er tank (Y/N)? Size? DHW tank (Y/N)? Type? Pump(s) (Y/N)? Type? • In which circuit(s) •...
  • Page 84 dditionAl nformAtion for the nstAller Unit Values/Comments Controller Appliance controller? Other controller (Y/N)? Type? Optional modules installed (Y/N) • Type? Optional items installed (Y/N)? • Outdoor sensor (Y/N)? Type? • Room unit(s) (Y/N)? Type? • Others? Miscellaneous The end user has received all rele- vant information (Y/N)? The end user has received all rele- vant documents (Y/N)?
  • Page 85: Combustion Parameters - Log Sheet

    dditionAl nformAtion for the nstAller Combustion Parameters - Log Sheet Date & Flue gas T° Remarks Name Signature I-85 A-070336_EN • B_0821...
  • Page 86: Water Parameters - Log Sheet

    dditionAl nformAtion for the nstAller Water Parameters - Log Sheet Recommended parameters to be checked during installation and operation of the boiler: Meter reading before initial filling: Z=…………… m Date Meter Quantity of Total alkaline Conductivity System Addition Signature reading Water earths or total value...
  • Page 87: D Eclaration Of C Onformity

    eclaratIon of onformIty I-87 A-070336_EN • B_0821...
  • Page 88 AIC Europe B.V. Graafschap Hornelaan 163A NL-6001 AC Weert The Netherlands www.myaic.eu...

This manual is also suitable for:

Nesta 160Nesta 200Nesta 250

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