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AIC Nesta Chrome Manual

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Nesta Chrome
CoilMaster
Texas
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Summary of Contents for AIC Nesta Chrome

  • Page 1 Controller manual for the qualified professional applicable to: Nesta Chrome CoilMaster Texas...

  • Page 2: Table Of Contents

    able of onTenTs ........................3 ntroductIon General ..............................3 Interactive Features ..........................3 ................4 ontroller nterface escrIptIon Control Panel and Main Functions ..................... 4 Symbols and Messages on the Control Panel ..............5 ....................6 ontroller peratIon Boiler Settings for the Installer ..................... 6 Access Levels ...................................6 Quick access to functions for the Installer ................7 Setting to Low/High Fire - Reading Ionization current and fan speed ..........7...

  • Page 3: I Ntroduction

    It provides further information on the controller interface and the associated boiler your PDF application management unit (LMS/RVS) installed in the most recent models of Nesta Chrome î Interactive cross-references and in the CoilMaster, Texas and TMU appliances: controls, structure of the menus, î...

  • Page 4: C Ontroller I Nterface D Escription

    ontroller nterface escrIptIon Control Panel and Main Functions LCD Display - The display illuminates whenever the rotary selector is rotated or depressed, and remains on for 8 minutes. For a detail of the symbols and messages displayed on the screen, see “Symbols and Messages on the Control Panel”.

  • Page 5: Symbols And Messages On The Control Panel

    ontroller nterface escrIptIon Symbols and Messages on the Control Panel Adjust/repair (Expert only). Allows to adjust the parameters in the ‘Complete parameter list’, and to access the commissioning wizard. The control panel display is divided into several zones (See Fig. 2): Symbols appearing in the horizontal status bar: î...

  • Page 6: C Ontroller O Peration

    Engineer level and the login will be indicated as unsuccessful if you do not enter it. In that case, please contact your AIC representative for more information. ▷ some menu names are slightly different, but have the same func-...

  • Page 7: Quick Access To Functions For The Installer

    ontroller peration Quick access to functions for the Installer Setting to Low/High Fire - Reading Ionization current and fan speed Select User Level Expert Continue Commissioning Controller Stop function Special operations (4/6) Home screen Low fire Controller Stop Setpoint High fire 100% Ionization current -- μA...

  • Page 8: Reading The Error History

    ontroller peration Reading the Error History Home screen Select User Level Expert Continue Engineer Home screen Complete parameter list Fault (42/43) Fault (4/43) 6800 History 1 ..6990 History 20 Back Performing Reset after an Interactive Error 27.01.2020 16:42 Home screen Select User Level Expert Error...

  • Page 9: Performing Reset After A Locking Error

    The list of factory settings is indicated in the table on page 10 î If error still persists, remove first the error. for Nesta Chrome, CoilMaster and Texas appliances, and in the table on page 60 Remove the side cover using the tip of a screwdriver.

  • Page 10: C Ontroller P Arameters - N Esta C Hrome - C Oil M Aster - T Exas

    “Off” or a value/unit, but if no component is connected, “No function” will be displayed, and only the unit without value will be indicated. ▷ In case of doubt regarding the required setting or the default value of a parameter, please contact your AIC representative. Default Top menu Pgm No.
  • Page 11 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Time Program Time Prog heating circuit 1 ▶ Set Time Program ▶ Default values ▷ ▷ Time Program Time Prog heating circuit 2 ▶...
  • Page 12 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas ▶ Summer/winter heating limit Heating circuit 1 (Cont’d) 18.0°C ▶ 24-hour heating limit -3°C ▶ Ext’n 24-hour heating limit ▷ —...
  • Page 13 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Heating circuit 1 (Cont’d) ▶ Actuator running time 120 s — 120 s ▶ Mixing valve Xp 32°C — 32°C ▶...
  • Page 14 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas 1010 ▶ Comfort Setpoint 20.0°C Heating Circuit 2 1610 ▶ Nominal setpoint 55°C 65°C 70°C Domestic Hot Water 1612 ▶ Reduced setpoint 40°C...
  • Page 15 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas 1859 ▶ Flow temp setp cons request ▷ ---°C Consumer circuit 1 70°C 60°C 70°C 1874 ▶ DHW charging priority ▷...
  • Page 16 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Boiler (Cont’d) 2301 ▶ Boiler pump on heat gen lock ▷ ▷ 2305 ▶ Impact heat generation lock ▷ None ▷...
  • Page 17 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Boiler (Cont’d) 2457 ▶ Setting time HCs 10min 2460 ▶ Switching diff on DHW 4°C 0°C 2°C 2461 ▶ Switching diff off min DHW CM 35 to 80 :6°C...
  • Page 18 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Instantaneous water heater 5461 ▶ Readj setp keep hot 40°C — 0°C — (Cont’d) 5462 ▶ Readj setp keep hot 60°C —...
  • Page 19 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas General Functions (Cont’d) 5573 ▶ Sensor 1 dT controller 1 ▷ None ▷ DHW sensor B31 ▷ Collector sensor B6 ▷...
  • Page 20 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas General Functions (Cont’d) 5585 ▶ On Time Min dT contr 2 5587 ▶ Pump/valve kick K22 ▷ ▷ 5710 ▶ Heating circuit 1 ▷...
  • Page 21 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 5841 ▶ External solar exchanger ▷ Jointly ▷ DHW storage tank Jointly ▷ Buffer storage tank 5870 ▶ Combi storage tank ▷...
  • Page 22 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 5892 ▶ Relay output QX3 Same as Pgm Nb 5890 DHW ctrl elem Instant WH ctrl None elem Q34 5894 ▶...
  • Page 23 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 5950 ▶ Function input H1 ▷ None ▷ Optg mode change HCs+ DHW ▷ Optg mode changeover DHW ▷...
  • Page 24 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 5963 ▶ Voltage value 1 H3 0.5 V 5964 ▶ Function value 1 H3 5965 ▶ Voltage value 2 H3 4.3 V...
  • Page 25 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 5976 ▶ Function value 2 H4 CM 35-45: 320 CM 60-120:850 5977 ▶ Function input H5 ▷ None ▷...
  • Page 26 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6008 ▶ Function Input H6 ▷ None ▷ Optg mode change HCs+ DHW ▷ Optg mode changeover DHW ▷...
  • Page 27 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6011 ▶ Function input H7 ▷ None ▷ Optg mode change HCs+ DHW ▷ Optg mode changeover DHW ▷...
  • Page 28 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6028 ▶ Funct input EX21 Module 3 Same as Pgm Nb 6024 None 6030 ▶ Relay output QX21 module 1 ▷...
  • Page 29 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6032 ▶ Relay output QX23 module 1 Same as Pgm Nb 6030 None 6033 ▶ Relay output QX21 module 2...
  • Page 30 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6046 ▶ Funct input H2/H21 modul 1 ▷ None ▷ Optg mode change HCs+DHW ▷ Optg mode changeover DHW ▷...
  • Page 31 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6057 ▶ Volt val 1 H2/H21 modul 2 6058 ▶ Funct val 1 H2/H21 modul 2 6059 ▶ Volt val 2 H2/H21 modul 2 6060 ▶...
  • Page 32 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6085 ▶ Function output P1 ▷ None ▷ Boiler pump Q1 ▷ DHW pump Q3 ▷ DHW interm circ pump Q33 ▷...
  • Page 33 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6217 ▶ Check no heating circuit 6220 ▶ Software version 6240 ▶ Funct output UX21 module 1 ▷ None ▷...
  • Page 34 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Configuration (Cont’d) 6256 ▶ Sign logic out UX22 module3 ▷ Standard Standard ▷ Inverted 6257 ▶ Signal output UX22 module 3 ▷...
  • Page 35 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas LPB system (Cont’d) 6631 ▶ Ext source in Eco mode ▷ ▷ On DHW ▷ 6632 ▶ Note OT limit ext source ▷...
  • Page 36 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Fault (Cont’d) 6990 ▶ History 20 ▷ Date / Time ▷ Fault code 20 6995 ▶ SW diagnostic code 20 ▷...
  • Page 37 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Service/special operation 7252 ▶ PStick command ▷ No operation ▷ Reading from stick No operation (Cont’d) ▷ Writing on stick 7253 ▶...
  • Page 38 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Input/output test (Cont’d) 7832 ▶ Sensor temp BX21 module 2 °C 7833 ▶ Sensor temp BX22 module 2 °C 7834 ▶...
  • Page 39 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas State 8000 ▶ State heating circuit 1 8001 ▶ State heating circuit 2 8002 ▶ State heating circuit 3 Refer to “Operating States - Codes...
  • Page 40 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Diagnostics heat generation 8323 ▶ Fan speed (Cont’d) 8324 ▶ Setpoint fan 8325 ▶ Current fan control 8326 ▶ Burner modulation 8327 ▶...
  • Page 41 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Diagnostics consumers 8730 ▶ Heating circuit pump 1 ▷ Off / No function (if not connected) ▷ (Cont’d) 8731 ▶ Heat circ mix valve 1 open ▷...
  • Page 42 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Diagnostics consumers 8982 ▶ Buffer temp 2 °C (Cont’d) 9005 ▶ Water pressure H1 9006 ▶ Water pressure H2 9016 ▶...
  • Page 43 Default Top menu Pgm No. Submenu 1 Submenu 2 Nesta Chrome CoilMaster Texas Burner Control (Cont’d) 9517 ▶ Preignition time — 9518 ▶ Safety time 3.6s — 9519 ▶ Safety time with ignition 3.0s —...

  • Page 44: C Ontroller P Arameters - Tmu

    - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 ▶ Time 01:00 (hh:min) Time of day and date ▶ Date 01.01 (dd.mm) ▶ Start of summertime 25.03 (dd.mm) ▶ End of summertime 25.10 (dd.mm) ▶ Language ▷...
  • Page 45 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Time Program Time Prog cooling 3 ▶ Set Time Program ▶ Default values ▷ ▷ Time Program Time Prog heating circuit 1 ▶ Set Time Program ▶ Default values ▷...
  • Page 46 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 ▶ Frost protection setpoint Heating circuit 1 (Cont’d) 10°C ▶ Comfort setpoint max 35.0°C ▶ Heating curve slope ▶ Heating curve displacement 0°C ▶ Heating curve adaptation ▷...
  • Page 47 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Heating circuit 1 (Cont’d) ▶ Actuator running time 120 s ▶ Mixing valve Xp 24°C ▶ Mixing valve Tn ▶ Floor curing function ▷ ▷ Functional heating ▷...
  • Page 48 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 1610 ▶ Nominal setpoint 50°C Domestic Hot Water 1612 ▶ Reduced setpoint 40°C 1620 ▶ Release ▷ 24h/day ▷ Time programs HCs Time program 4/DHW ▷ Time program 4/DHW 1630 ▶...
  • Page 49 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 1859 ▶ Flow temp setp cons request ▷ ---°C 44°C Consumer circuit 1 1874 ▶ DHW charging priority ▷ ▷ ▷ 1875 ▶ Excess heat draw ▷ 1878 ▶...
  • Page 50 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Heat pump (Cont’d) 2908 ▶ OT limit with DHW charging ▷ Ignore Note ▷ Note 2909 ▶ Release below outside temp ---°C 2910 ▶ Release above outside temp 4°C 2911 ▶...
  • Page 51 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Supplementary source 3710 ▶ Setpoint min 40°C (Boiler) (Cont’d) 3711 ▶ Setpoint max 80°C 3718 ▶ Supplementary source release 20°C*min integral 3719 ▶ Supplementary source reset 10°C*min integral 3720 ▶...
  • Page 52 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Buffer storage tank (Cont’d) 4749 ▶ Min charging setpoint solar 55°C 4750 ▶ Charging temp max 60°C 4755 ▶ Return cooling temperature 20°C buffer 4756 ▶ Buffer return cooling DHW/HC ▷...
  • Page 53 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) 5736 ▶ DHW separate circuit ▷ ▷ 5840 ▶ Solar controlling element ▷ Charging pump Charging pump ▷ Diverting valve 5841 ▶ External solar exchanger ▷...
  • Page 54 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) ▶ Relay output QX1 (Cont’d) ▷ Heat circuit pump HC2 Q6 ▷ Instant WH ctrl elem Q34 ▷ Common flow valve Y13 ▷ Div valve HC/CC2 Y45 ▷...
  • Page 55 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) 5930 ▶ Sensor input BX1 ▷ None ▷ Buffer sensor B4 ▷ Buffer sensor B41 ▷ Collector sensor B6 ▷ DHW sensor B31 ▷ Refrig sensor liquid B83 ▷...
  • Page 56 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) 5932 ▶ Sensor input BX3 ▷ None ▷ Buffer sensor B4 ▷ Buffer sensor B41 ▷ Collector sensor B6 ▷ DHW sensor B31 ▷ Refrig sensor liquid B83 ▷...
  • Page 57 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) 5950 ▶ Function input H1 ▷ None ▷ Op’mode change zones+DHW ▷ Optg mode changeover DHW ▷ Op’mode changeover zones ▷ Op’mode changeover zone 1 ▷...
  • Page 58 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) 5960 ▶ Function input H3 Same as Pgm Nb 5950 None 5961 ▶ Contact type H3 ▷ Normally open (NO) ▷ 5963 ▶ Voltage value 1 H3 5964 ▶...
  • Page 59 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 Configuration (Cont’d) 6072 ▶ Signal output UX ▷ 0..10V 0..10V ▷ 6078 ▶ Function output UX2 Same as Pgm Nb 6070 Heat Demand 6079 ▶ Signal logic output UX2 ▷...
  • Page 60 - tmu ontroller arameters Defaults Top menu Pgm No. Submenu 1 Submenu 2 LPB system (Cont’d) 6632 ▶ Note OT limit ext source ▷ ▷ 6640 ▶ Clock mode ▷ Autonomously ▷ Slave without remote setting Autonomously ▷ Slave with remote setting ▷...

  • Page 61: C Ontroller O Peration - O Perating S Tates

    ontroller peratIon peratIng tates Operating States - Codes and Meanings Pgm lines State Meaning code 8000 to Limit thermostat hat cut out The following tables indicate the meaning of the state codes used for the program 8002 lines 8000 to 8011. Manual control active Floor curing function active Some of these codes are for the installer only, and some are visible to the end user.
  • Page 62 ontroller peratIon peratIng tates Pgm lines State Meaning Pgm lines State Meaning code code 8003 Forced, Legionella setpoint 8000 to Frost protection flow active Forced, Nominal setpoint 8002 Frost protection plant active Forced charging active Frost protection active Charging electric, Legionella setpoint Continuous pump operation Charging electric, Nominal setpoint Summer operation...
  • Page 63 ontroller peratIon peratIng tates Pgm lines State Meaning Pgm lines State Meaning code code 8003 8005 Forced, reduced temp Minimum limitation, low-fire Charged Minimum limitation active Protective startup Ready Protective startup, low-fire 8005 Safety limit thermostat limits output Return limitation SLT has cut out Return temperature limitation, low-fire SLT test active...
  • Page 64 ontroller peratIon peratIng tates Pgm lines State Meaning Pgm lines State Meaning code code 8007 Manual control active 8008 Frost protection plant active Fault Frost protection boiler active Frost protection collector active Frost protection active Recooling active Max stor tank temp reached 8009 Lockout Evaporation protection active...
  • Page 65 ontroller peratIon peratIng tates Pgm lines State Meaning code 8010 Partially charged, temp setpoint Charged, min charg temp Charged Cold No request for heat 8011 Manual control active Fault Heating mode restricted Forced heat release Heating mode, generation Heating mode Heated, max sw pool temp Heated, solar setpoint Heated, source setpoint...

  • Page 66: E Rror C Odes

    Action(s) code Check connection and/or sensor. Replace as required. Outside temperature sensor error Emergency operation Contact AIC technical support. Short circuit or Open circuit boiler flow Boiler temperature 1, sensor error Check connection and sensor. Replace as required. sensor. Short circuit or Open circuit common Common flow temperature, sensor error Check connection and sensor.
  • Page 67 Contact AIC technical support. No heat removal, STB interruption, Allow device to cool down and carry out reset; if the fault occurs possible short-circuit in the gas valve, several times inform AIC technical support STB (SLT) lockout internal fuse faulty; Internal pump malfunction...
  • Page 68 Gas pressure switch safety shut down Lack of gas Check connection and component Lack of gas, Reset, if the fault re-occurs more than 3 times, contact AIC technical Safety time for establishment of flame support. exceeded Polarity of mains connection, safety...
  • Page 69 Allow the circuit to cool down and carry out reset; if the fault occurs Temperature limiter heating circuit 1 several times inform AIC technical suport. Allow the circuit to cool down and carry out reset; if the fault occurs Temperature limiter heating circuit 2 several times inform AIC technical suport.
  • Page 70 Check connection/wiring and switch of Gas Overpressure Switch limit switch (N 1080-1260 FSW only). Replace as required. If the problem is not î Gas overpressure switch solved, contact AIC Technical support. (N 1080-1260 FSW only) Floor appliances >300 kW This point is not applicable in Italy.
  • Page 71 rror odEs Error Fault description Explanation Action(s) code Check the heating circuit configuration. Fault boiler Reset to default parameters Sensor error Check connection and sensor. Replace as required. Pressure supervision Check system pressure. Swimming pool sensor, error Check connection and sensor. Replace as required. Flow temperature 3, sensor error Check connection and sensor.
  • Page 72 Internal repetition Contact AIC technical support Repetition speed Contact AIC technical support Extraneous light Shut off gas supply and contact AIC technical support Mains undervoltage Check electric supply in boiler terminals Fan speed tolerance Check air supply DHW sensor no function Check connection and sensor.
  • Page 73 rror odEs Error Fault description Explanation Action(s) code BX33 no function Check connection or verify parametrization of connections. BX34 no function Check connection or verify parametrization of connections. BX35 no function Check connection or verify parametrization of connections. BX36 no function Check connection or verify parametrization of connections.

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