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Unigas LX60 Manual Of Installation - Use - Maintenance

Lmv2x microprocessor controlled gas burners
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LX60 - LX65 - LX72
LMV2x
Microprocessor controlled
gas burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M039320CA Rel 0.1 06/2017

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Summary of Contents for Unigas LX60

  • Page 1 LX60 - LX65 - LX72 LMV2x Microprocessor controlled gas burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039320CA Rel 0.1 06/2017...

  • Page 2: General Introduction

    DANGERS, WARNINGS AND NOTES OF CAUTION THIS MANUAL IS SUPPLIED AS AN INTEGRAL AND ESSENTIAL PART OF THE PRODUCT AND MUST BE DELIVERED TO THE USER. INFORMATION INCLUDED IN THIS SECTION ARE DEDICATED BOTH TO THE USER AND TO PERSONNEL FOLLOWING PRODUCT INSTALLATION AND MAINTENANCE.

  • Page 3: Directives And Standards

    DIRECTIVES AND STANDARDS do not leave the equipment exposed to weather (rain, sun, etc.) unless expressly required to do so; Gas burners European directives do not allow children or inexperienced persons to use equipment; -2009/142/EC (Gas Directive) The unit input cable shall not be replaced by the user. -2014/35/UE (Low Tension Directive) In case of damage to the cable, switch off the unit and contact qualified -2014/30/UE (Electromagnetic compatibility Directive)

  • Page 4: Symbols Used

    -EN 60204-1:2006 (Safety of machinery – Electrical equipment of machi- nes.) Failure to observe the warning may -CEI EN 60335-1 (Specification for safety of household and similar electri- result in serious injuries or death. DANGER! cal appliances); -CEI EN 60335-2-102 (Household and similar electrical appliances. Safety.
  • Page 5 Burners are identified by burner type and model. Burner model identification is described as follows. Type LX65 Model MD. S. BURNER TYPE LX60 - LX65 - LX72 FUEL M - Natural gas B - Biogas OPERATION (Available versions) PR - Progressive...

  • Page 6: Technical Specifications

    PART I: SPECIFICATIONS Technical Specifications BURNERS LX60 M-...0.40 LX60 M-...0.50 LX60 M-...0.65 165 - 720 Output min. - max kW Natural gas Fuel Category (see next paragraph) 17.5 - 76 Gas rate min.- max Stm Gas pressure min. - max. mbar...
  • Page 7 PART I: SPECIFICATIONS BURNERS LX72 M-...0.50 LX72 M-...0.65 LX72 M-...0.80 241 - 1040 Output min. - max kW Natural gas Fuel Category (see next paragraph) 25.5 - 110 Gas rate min. - max Stm Gas pressure min. - max mbar (see Note 2) 400V 3N ~ 50Hz Power supply...
  • Page 8 Overall dimensions (mm) LX60 Boiler’s drilling plate and burner’s flange A(S*) A(L*) B(S*) B(L*) LX60 - 0.40 1026 1206 314 736 298 812 500 312 185 204 210 240 344 190 439 112 327 444 464 162 120 LX60 - 0.50 1026...
  • Page 9 LX65 - LX72 O min. O max. Boiler’s drilling plate and burner’s flange A(S*) A(L*) AA B(S*) B(L*) BB Omin Omax LX65 MD - 0.50 1166 1256 373 803 316 900 568 332 185 228 208 300 376 233 465 130 335 519 531 162 155 LX65 MD - 1.50 1166...

  • Page 10: Performance Curves

    Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15°C. Performance Curves LX60 LX65 LX72 To get the input in kcal/h, multiply value in kW by 860. Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15°C NOTE: The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory tests, but does not represent the regulation range of the machine.
  • Page 11 This value must be lower or equal to the pgas value, calcula- ted before. Power kW Potenza / Output (kW) Pressure in the Network / gas flow rate curves Natural Gas burners LX60 M-...40.. LX60 M-...50/65.. Gas rate Stm Gas rate Stm LX65 LX72...
  • Page 12 PART I: SPECIFICATIONS Combustion head gas pressure curves depending on the flow rate The curves referred to the gas pressure in the combustion head, depending on the gas flow rate, are referred to the burner properly adjusted (percentage of residual O in the flues as shown in the “Recommended combustion values”...
  • Page 13 PART I: SPECIFICATIONS Pressure - rate in combustion head curves Curves are referred to pressure = 0mbar in the combustion chamber! LX60 LX65 LX72 100 110 120 WARNING: the diagrams refers to natural gas. For different type of fuel please refer to the paragraph “Fuel” at...
  • Page 14 Packing The burners are despatched in wooden crates whose dimensions are: LX60: 1200mm x 670mm x 540mm (L x P x H). LX65 - LX72: 1280mm x 850mm x 760mm (L x P x H). Packing cases of this type are affected by humidity and are not suitable for stacking.
  • Page 15 PART II: INSTALLATION The burner is designed to work positioned according to the picture below. For different installations, please contact the Technical Department. SIDE UP SIDE DOWN Note: the figure is indicative only. Matching the burner to the boiler The burners described in this manual have been tested with combustion chambers that comply with EN676 regulation and whose dimensions are described in the diagram .

  • Page 16: Assembling The Gas Train

    PART II: INSTALLATION GAS TRAIN CONNECTIONS The diagrams show the components of the gas trai included in the delivery and which must be fitted by the installer.The diagrams are in compliance with the current laws. WARNING: BEFORE EXECUTING THE CONNECTIONS TO THE GAS PIPE NETWORK, BE SURE THAT THE MANUAL CUTOFF VALVES ARE CLOSED.

  • Page 17: Mounting Positions

    PART II: INSTALLATION To mount the gas train, proceed as follows: 1-a) in case of threaded joints: use proper seals according to the gas used; 1-b) in case of flanged joints: place a gasket (no. 1A..1E - Fig. 7) between the elements fasten all the items by means of screws, according to the diagrams showed, observing the mounting direction for each item;...
  • Page 18 PART II: INSTALLATION Siemens VGD20.. and VGD40.. gas valves - with SKP2.. (pressure governor) Mounting When mounting the VGD.. double gas valve, two flanges are required (as for VGD20.. model, the flanges are threaded); to prevent cuttings from falling inside the valve, first fit the flanges to the piping and then clean the associated parts; install the valve;...
  • Page 19 PART II: INSTALLATION Pressure adjusting range The pressure adjusting range, downstream the gas valves group, changes according to the spring provided with the valve group. Siemens SKP actuator Keys 1 spring 2 cap Siemens VGD valves with SKP actuator: 0 - 22 15 - 120 100 - 250 Performance range (mbar)

  • Page 20: Electrical Connections

    PART II: INSTALLATION ELECTRICAL CONNECTIONS WARNING! Respect the basic safety rules. make sure of the connection to the earthing system. do not reverse the phase and neutral connections. fit a differential thermal magnet switch adequate for connection to the mains. WARNING! before executing the electrical connections, pay attention to turn the plant’s switch to OFF and be sure that the burner’s main switch is in 0 position (OFF) too.
  • Page 21 PART III: OPERATION PART III: OPERATION WARNING: before starting the burner up, be sure that the manual cutoff valves are open and check that the pressure upstream the gas train complies the value quoted on paragraph “Technical specifications”. Be sure that the mains switch is closed.
  • Page 22 PART III: OPERATION Fig. 21 - Control panel RWF50.X Keys Main switch on-off Lockout indicator light Reset pushbutton for flame control box Gas pressure switch consent indicator light Gas proving system lockout indicator light (only on burners with leakage control device) High flame operation indicator light (or air damper open during pre-purgue phase) Low flame operation indicator light Ignition tranformer operation indicator light...

  • Page 23: User Interface

    PART III: OPERATION ADJUSTING AIR AND GAS FLOW RATES WARNING! During commissioning operations, do not let the burner operate with insufficient air flow (danger of formation of carbon monoxide); if this should happen, make the fuel decrease slowly until the normal combustion values are achieved.
  • Page 24 PART III: OPERATION -Key - Used to decrease a a value Used to enter Info and Serivce during the curve adjustments +Key + Used to increase a a value Used to enter Info and Serivce during the curve adjustments Keys (+ & - )= ESC By pressing + and - at the same time, the ESCAPE function is perfomed: to enter a lower level menu The display will show these data:...
  • Page 25 PART III: OPERATION Ph10 t10 = tempo raggiungimento posizione riposo t10 = home run Ph12 Pausa Standby (stationary) t22 = tempo di salita ventilatore (motore ventilatore = ON, t22 = fan ramp up time (fan motor = ON, Ph22 valvola intercettazione di sicurezza = ON) safety shutoff valve = ON) Ph24 Verso posizione preventilazione...

  • Page 26: Info Level

    PART III: OPERATION The burner and consequently the LMV2x.. are factory set; the air and fuel curves as set as well. Info level To enter the Info level, proceed as follows: in any menu position, press keys + and - at the same time, then the program will start again: the display will show OFF. until the display will show InFo, Press the enter (InFo) key then il will show the first code (167) flashing, on the right side it will show the data entered.
  • Page 27 PART III: OPERATION Parameter Description Cubic meters of fule (resettable) Operating hours (resettable) Device operating hours Burners start-ups (resettable) Total number of start-ups Burner number (i.e. serial number) Software version Software date Device serial number Customer code Version Free Example: choose parameter 102 to show the date the display shows parameter 102 flashing on the left and characters ._._ on the right.

  • Page 28: Service Level

    PART III: OPERATION Diagnostic code (in the example “diagnostic code:3”). Record the codes and find out the fault in the Error table. To perform the reset, press InFo for one second: The unit displays an event which does not lead to shutdown. The display shows current error code c: alternating with diagnostic code d: Press InFo to return to the display of phases.
  • Page 29 PART III: OPERATION .the first parameter will be “954”: the percentage of flame is shown on the right. By pressinf + or - it is possible to scroll up/down the parameter list. Once the last parameter is accessed (143) by pressing + , the End message will blink. Press InFo for more than three seconds or for more than three seconds orto return to the normal display.
  • Page 30 PART III: OPERATION Adjusting the gas valves group Multibloc MB-DLE VS T(VR) The multibloc unit is a compact unit consisting of two valves, gas pressure switch, pres- sure stabilizer and gas filter. The valve is adjusted by means of the RP regulator after slackening the locking screw VB by a number of turns.
  • Page 31 PART III: OPERATION Adjusting the combustion head CAUTION: perform these adjustments once the burner is turned off and cooled. The burner is factory-set with the head in its "all-ahead" position, as for the minimum output. To operate at a higher power,slightly move the combustion head backwards, turning clockwise the screw VRT.
  • Page 32 PART III: OPERATION Calibration of low gas pressure switch As for the gas pressure switch calibration, proceed as follows: Be sure that the filter is clean. Remove the transparent plastic cap. While the burner is operating at the maximum output, test the gas pressure on the pressure port of the minimum gas pressure switch.

  • Page 33: Routine Maintenance

    PART IV: MAINTENANCE PART IV: MAINTENANCE At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry out the maintenance at the end of each heating season; in the case of continuous operation the maintenance is carried out every 6 months.
  • Page 34 PART IV: MAINTENANCE Removing the filter in the MULTIBLOC DUNGS MB-DLE 405..412 Check the filter at least once a year! Change the filter if the pressure difference between pressure connection 1 and 3 (Fig. 25-Fig. 26)is Δp > 10 mbar. Change the filter if the pressure difference between pressure connection 1 and 3 (Fig.
  • Page 35 PART IV: MAINTENANCE Fig. 29 Fig. 28 Fig. 30...
  • Page 36 Stick the adhesive label for spring identification on the type plate. SKP Siemens actuator Removing the combustion head Type LX60 Remove cover C. Unscrew the two screws S holding in position the washer and then unscrew VRT to free the threaded rod AR.
  • Page 37 PART IV: MAINTENANCE Electrodes Adjustment (natural gas burners) Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion head. ATTENTION: avoid the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), other- wise the boiler’s operation would be compromised. Check the electrodes position after any intervention on the combustion head.

  • Page 38: Seasonal Stop

    PART IV: MAINTENANCE Checking the detection current To check the detection signal follow the scheme in the picture below. If the signal is less than the value indicated, check the position of the detection electrode or detector, the electrical contacts and, if necessary, replace the electrode or the detector. Device Flame detector Minimum detection signal...

  • Page 39: Wiring Diagrams

    PART IV: MAINTENANCE WIRING DIAGRAMS Refer to the attached wiring diagrams. WARNING 1 - Electrical supply 230V / 400V 50Hz 3N a.c. 2 - Do not reverse phase with neutral 3 - Ensure burner is properly earthed...
  • Page 40 PART IV: MAINTENANCE...
  • Page 44 C.I.B. UNIGAS S.p.A. Via L.Galvani, 9 - 35011 Campodarsego (PD) - ITALY Tel. +39 049 9200944 - Fax +39 049 9200945/9201269 web site: www.cibunigas.it - e-mail: cibunigas@cibunigas.it Note: specifications and data subject to change. Errors and omissions excepted.
  • Page 45 AZL2x - LMV2x/3x Burner Management System Service manual 03/2023 M12916CD Rev. 3.4...
  • Page 46 INDEX MICROPROCESSOR CONTROLLED SYSTEM..........................6 User interface....................................6 Parameters level (heating engineer)............................... 8 Setting menu....................................9 Block 000: Internal Parameter ..............................10 Block 100: General information..............................10 Block 200: Burner control................................13 Block 400: Setting air/fuel ratio curves............................25 Block 500: Air/fuel ratio control ..............................26 Block 600: Actuators ..................................

  • Page 47: Special Warnings

    DANGERS, WARNINGS AND NOTES OF CAUTION THIS MANUAL IS SUPPLIED AS AN INTEGRAL AND ESSENTIAL PART OF THE PRODUCT AND MUST BE DELIVERED TO THE USER. INFORMATION INCLUDED IN THIS SECTION ARE DEDICATED BOTH TO THE USER AND TO PERSONNEL FOLLOWING PRO- DUCT INSTALLATION AND MAINTENANCE.
  • Page 48 DIRECTIVES AND STANDARDS do not leave the equipment exposed to weather (rain, sun, etc.) unless expressly required to do so; Gas burners European directives: do not allow children or inexperienced persons to use equipment; - Directive 2009/142/EC - Gas Appliances; The unit input cable shall not be replaced by the user.
  • Page 49 -EN 55014-1Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus. -UNI EN 676 (Gas Burners; -CEI EN 60335-1(Household and similar electrical appliances - Safety. Part 1: General requirements; - EN 50165 Electrical equipment of non-electric appliances for household and similar purposes.
  • Page 50 MICROPROCESSOR CONTROLLED SYSTEM The control system is made of the Siemens LMV central unit that performs all the burner control functions and of the Siemens AZL local programming unit that interfaces the system with the user. Keys Burner AZL2.. Air actuator Fuel actuator LMV2..
  • Page 51 The keys functions are the following: Key F Used to adjust the “fuel” actuator position (Fuel): : While pressing the F key, the “fuel” actuator position can be changed by means of the + and - keys. Key A Used to adjust the “air” actuator position (Air): While pressing the A key, the “air”...
  • Page 52 Parameters level (heating engineer)
  • Page 53 Setting menu The seeting menu is divided into different blocks: Bloc. Descrizione Description Password Internal parameters OEM / Service Informazioni generali General OEM / Service / Info Controllo bruciatore Burner control OEM / Service Controllo bruciatore (solo LMV26) Burner control (LMV26 only) OEM / Service Curve rapporto Ratio curves...
  • Page 54 Block 000: Internal Parameter Param. Descrizione Description Password Password livello assistenza (ingegnere del Password heating engineer (4 characters) calore) Password livello OEM (costruttore del brucia- Password OEM (5 characters) tore) Start backup / restore via AZL2.../ PC sof- tware (set parameter to 1) Index 0: Create backup Index 1: Execute restore Error dia- Start backup/restore via AZL2x/PC gnostics via negative values...
  • Page 55 Frequenza di rete Mains frequency 0 = 50 Hz 0 = 50 Hz Service / Info 1 = 60 Hz 1 = 60 Hz Luminosità display Display brightness Service / Info Tempo dopo il quale, se non viene premuto nessun tast il software esce dalla modalita Timeout for menu operation (default value = programmazione (valore fabbrica = 60min - 60min - range: 10 - 120 min)
  • Page 56 Numero totale di partenze (non azzerabile) Total number of startups Service / Info Volume combustibile (azzerabile da OEM) Fuel volume (resettable by OEM) Service / Info Fuel 1(secondo combustibile)Ore di eserci- Fuel 1: Operation hours resettable Service / Info zio (azzerabile da Service) Fuel 1 (secondo combustibile) Numero di Fuel 1: Number of startups resettable Service / Info...
  • Page 57 Block 200: Burner control Param. Descrizione Description Password Modalità funzionamento bruciatore ( rampa Burner operating mode (fuel train, modula- combustibile, modulante / multistadio, servo- ting / multistage, actuators, etc..) comandi, ecc.) __= non definito (cancellazione curve) __= undefined (delete curves) 1 = accensione diretta a gas (G mod) 1 = gas direct ignition (G mod) 2 = accensione tramite pilota gas con attacco...
  • Page 58 15 = gas rampa Gp1 modulante pneumatico 15 = Gp1 mod pneu without actuator senza servomotori (Gp1 mod pneu) 16 = Gp2 mod pneu without actuator 16 = gas rampa Gp2 modulante pneumatico 17 = Lo 2-stage without actuator senza servomotori (Gp2 mod pneu) 18 = Lo 3-stage without actuator 17 = olio LO 2 stadi senza servomotori 19 = G mod gas actuator only...
  • Page 59 Gas: sonda rilevazione fiamma attivo (valore Gas: active detector flame evaluation (default fabbrica = 1) value = 1) OEM / Service 0 = QRB../QRC.. 1 = ION / QRA.. Gas: Preventilazione (valore fabbrica = 1) Gas: Pre-purging (default value = 1) 1 = attivo 1 = active 0 = non attivo...
  • Page 60 Gas: Pressostato gas di minima (default = 1) Gas: Pressure switch-min input 0 = inattivo 0 = inactive 1 = pressostato gas di minima (a monte val- 1 = pressure switch-min (upstream of fuel vola V1) valve 1 (V1)) 2 = controllo perditavalvole via pressostato 2 = valve proving via pressure switch-min OEM / Service (montato tra le valvole V1 e V2)
  • Page 61 Gas: tempo pressione atmosferica controllo Gas: proving test time atmospheric pres- tenuta (valore fabbrica = 10s - range impo- sure (default value = 10s - range:0.2s - 60s) stazione:0.2s - 60s) Gas: tempo riempimento controllo tenuta Gas: proving test filling time (default value = (valore fabbrica = 3s - range imposta- 3s - range:0.2s - 10s) zione:0.2s - 10s)
  • Page 62 Olio: Intervallo 1 (valore fabbrica = 2s - Oil: Interval 1 (default value = 2s - OEM / Service range impostazione:0.2s - 60min) range:0.2s - 60min) Olio: tempo di sicurezza 2 (TSA2) (valore Oil: safety time 2 (TSA2) (default value = 3s fabbrica = 3s - range impostazione:0.2 - 10s) - range:0.2 - 10s) Olio: Intervallo 2 (valore fabbrica = 2s -...
  • Page 63 Block 300: Burner control (only with LMV26) Param. Descrizione Description Password Combustibile 1 : Modalità funzionamento bru- Fuel 1 : Burner operating mode (fuel train, ciatore ( rampa combustibile, modulante / modulating / multistage, actuators, etc..) multistadio, servocomandi, ecc.) __= non definito (cancellazione curve) __= undefined (delete curves) 1 = accensione diretta a gas (G mod) 1 = gas direct ignition (G mod)
  • Page 64 11 = olio 2 stadi con accensione tramite pilota 11 = LoGp 2-stage (LOGp 2-stage) 12 = Lo mod 2 fuel valves 12 = olio modulante con 2 valvole combusti- 13 = LoGp mod 2 fuel valves bile (LOmod 2 valvole) 14 = G mod pneu without actuator 13 = olio modulante con 2 valvole combusti- 15 = Gp1 mod pneu without actuator...
  • Page 65 Combustibile 1 - Gas: tempo di preaccen- Fuel 1 - Gas: Preignition time (default value = sione (valore fabbrica = 2s - range imposta- 2s - range: 0.2s - 60min) OEM / Service zione:0.2s - 60min) Combustibile 1 - Gas: tempo di sicurezza 1 Fuel 1 - Gas: Safety time 1 (TSA1) (default (TSA1) (valore fabbrica = 3s - range impo- value = 3s - range: 0.2 - 10s)
  • Page 66 Limite ripetizioni perdita di fiamma (valore Repetition limit loss of flame (default value= 2 fabbrica = 2 - range impostazione:1 - 2) - range:1 - 2) Fuel 1 - Gas: execution proving test (default Combustibile 1 - Gas: esecuzione controllo value= 2) tenuta (valore fabbrica = 2) 0 = no controllo tenuta...
  • Page 67 Fuel 1 - Oil: prepurging (default value = 1) Combustibile 1 - Olio: preventilazione (valore fabbrica = 1) 0 = deactivated 1 = attivo 1 = activated 0 = non attivo 0 = deactivated OEM / Service In ambito civile la norma EN267 rende obbli- WARNING: in the civil field, the prepurge is gatoria la preventilazione.
  • Page 68 Limite ripetizioni perdita di fiamma (valore Repetition limit value loss of flame (default fabbrica = 2 - range impostazione:1 - 2) value = 2 - range:1 - 2) Fuel 1 - Oil: time oil ignition (default value = Combustibile 1 - Olio: tempo iniezione olio (valore fabbr.
  • Page 69 Block 400: Setting air/fuel ratio curves Param. Descrizione Description Password Curve controllo servocomando combustibile Ratio control curve fuel actuator (F): it acces- (F): si accede alla lista dei punti da impostare ses to the parameter list of the points to be set OEM / Service (da P0 a P9) - consultare paragrafo “Imposta- (P0 to P9) - see paragrapf “Setting the curves”...
  • Page 70 Block 500: Air/fuel ratio control Param. Descrizione Description Password No-flame position fuel actuator Posizione servocomando combustibile in assenza di fiamma (no-flame) Indice 0 = posizione di sosta = 0° Index 0 = no-load position = 0° OEM / Service Indice 1 = posizione preventilazione = 0° Index 1 = prepurge position = 0°...
  • Page 71 Activation of VSD / PWM fan (PWM = Pulse- Width Modulation) Activation of VSD / PWM fan OEM / Service 0=deactived 1=actived (PWM = Pulse-Width Modulation) Parameter 544 Modulation Modulation Modulation Modulation Actuator Actuating speed param- Max. delta between the curve points eter 613 OEM / Service Actuator...
  • Page 72 Block 600: Actuators Param. Descrizione Description Password Impostazione punto di riferimento Selection of reference point Indice 0 = combustibile Index 0 = fuel Indice 1 = aria Index 1 = air 0 = chiuso (<0°) 0 = closed (<0°) 1 = aperto (>90°) 1 = open (>90°) Direzione rotazione del servocomando Actuator’s direction of rotation...
  • Page 73 Tipo di riferimento dei servocomandi index 0 = fuel (default = 0 (riferimento stan- dard) Type of referencing index 1 = air (default = 0 (riferimento stan- Index 0 = fuel dard) Index 1 = air 0 = standard 0 = standard 1 = fermo entro il raggio utile 1 = stop within usable range 2 = fermi interni (SQN1...)
  • Page 74 Configurazione uscita analogica % di carico Configuration of analog output (default value (valore fabbrica = 0) = 0) 0 = DC 0..10 V 0 = DC 0..10 V OEM / Service 1 = DC 2..10 V 1 = DC 2..10 V 2 = DC 0/2..10 V 2 = DC 0/2..10 V ATTENTION: as for SQM3x actuators, set the direction according to the acutator function.
  • Page 75 Block 700: Error history Param. Descrizione Description Password Storico errori: 701 - 725.01.codice Error history: 701 - 725.01.code Service / Info Storico errori: 701 - 725.02.codice diagnostico Error history: 701 - 725.02.diagnostic code ° Service / Info Storico errori: 701 - 725.03.classe errore Error history: 701 - 725.03.error class °...
  • Page 76 Block 900: Process data Param. Descrizione Description Password Potenza attuale (valore fabbrica = 0% - range Current output (default value = 0% - range = impostazione = 0-100%) 0-100%) Service / Info Indice 0 = combustibile Index 0 = fuel Indice 1 = aria Index 1 = air Posizione incrementale servocomandi (valore...
  • Page 77 Actuators references An incremental transducer is used to ensure position feedback. Referencing of the actuators must be performed after power-on. In addition, at the end of each shutdown in phase 10, the actuators are referenced to ensure that individual stepping errors, which could lead to shutdown, do not accumulate.

  • Page 78: Commissioning The Burner

    COMMISSIONING THE BURNER The LMV2x complete programming must be performed on units that has never been set before or reset units (e.g. spare parts). The programming procedure is performed by setting the following main parameters: if LMV.. is a spare part, insert burner ID (parameter 113) at least 4 digit. type of fuel train (parameter “201”) air/fuel ratio curvepoints (Block “400”) maximum load percentage (parameter “546”)
  • Page 79 the types of fuel trains are the following: Param. Descrizione Description Password Modalità funzionamento bruciatore ( rampa Burner operating mode (fuel train, mod / multi- comb., mod. / multistadio, servocom., ecc.) stage, actuators, etc.) __= non definito (cancellazione curve)___= __= undefined (delete curves) 1 = accensione diretta a gas (G mod) 1 = gas direct ignition(G mod) 2 = accensione tramite pilota gas con attacco...
  • Page 80 Lo 3-stage In the example the Gmod gas train has been set (Configuration “1”). Choose the fuel train by pressing ENTER, then press “+” / “-”. Press ENTER to confirm: number “1” will appear on the right side of the display.
  • Page 81 CAUTION: at the first burner adjustment, it is recommended to set the maximum output P9 at the same value (or little higher) of the ignition point, in order to safely reach point P9 next (see next paragraph). By pressing “+” the display will show: The burner is ready to startup.

  • Page 82: Warm Setting

    Warm setting Once pressed button “enter” and the chain thermostats open (X5-03 terminals), the LMV.. show Ph12.Then close the chain termostat and the unit performs the prepurge cycle (see “Phases List”) and stops at the ignition point P0 without ignition anyway. By pressing “+”, the burners lights abd the air/fuel ratio can be properly set in presence of flame.

  • Page 83: Cold Setting

    P5, keep pressing “-” unitl “Calc” is displayed. The curve will be processed again downwards point P1. Fuel deviation between two following points: 25°max. 12 press “-” to go through the lower points and check the combustion values, if necessary change the points as described above. 13 By pressing ESC, at the end of the points adjusments, the parameter “546”...
  • Page 84 BURNER STARTUP WITH LMV2x ALREADY PROGRAMMED Once the LMV turns on, the AZL display will show The burners is basically factory set. The air/fuel ratio curve is set with the maximum output point P9 a little higher or equal to P0. To adjust the burner on the plant site, adjust the maximum output point to the flow rate values really requested.
  • Page 85 Set the air/fuel ratio curvepoints as described on chapter “Programming the LMV2x” Note: the other phases are Ph60 = operation (OP= in modulation) Ph62 = travelling to shutdown Ph70 = off but in prepurge after the burntime Ph72 = travelling to postpurging Ph74 = postpurge (countdown is displayed) Press ESC the parameter “546”...
  • Page 86 Reset / manual lockout The system can be manually locked by simultaneously pressing the ENTER (InFo) button and any other button on the AZL2..This function allows the user to stop the system from the operating level should an emergency occur. When making a reset, the following actions are carried out: Alarm relay and the fault display are off ...
  • Page 87 Entering the Parameter levels By means of a proper use of the keys, it is possible to enter the various level parameters, as shown in the following flow chart: The burner and consequently the LMV2x.. are factory set; the air and fuel curves as set as well.
  • Page 88 Info level To enter the Info level, proceed as follows: in any menu position, press keys + and - at the same time, then the program will start again: the display will show OFF. , until the display will show InFo, Press the enter (InFo) key then il will show the first code (167) flashing, on the right side it will show the data entered.
  • Page 89 10 Press InFo for more than three seconds or for more than three seconds orto return to the normal display. If a message like the one below is shown during operation, it means that the burner is locked out and the Errore code is shown (in the example “error code:4”); this message is alternating with another message Diagnostic code (in the example “diagnostic code:3”).
  • Page 90 Service level To enter the Service mode, press InFo until the display will show: The service level shows all the information about flame intensity, actuators position, number and lock codes: Parameter Description Flame intensity % output, if set = automatic operation Actuators position, 00=combustibile;...
  • Page 91 PHASES LIST Fase /Phase Funzione Function Ph00 Fase blocco Lockout phase Ph01 Fase di sicurezza Safety phase Ph10 t10 = tempo raggiungimento posizione riposo t10 = home run Ph12 Pausa Standby (stationary) t22 = tempo di salita ventilatore (motore ventilatore t22 = fan ramp up time (fan motor = ON, safety Ph22 = ON, valvola intercettazione di sicurezza = ON)
  • Page 92 BACKUP PARAMETER WITH AZL2x On the AZL2x you can save the configuration to download on another appliance LMV. To do this: access up, press F and A at the same time enter the password following the procedure on chapter “Programming LMV2x”. Press ENTER until the display will show: with the button go to the group 000 of the parameters and press...
  • Page 93 RESTORE PARAMETER FROM AZL2x TO LMV.. To copy the previously saved configuration on AZL2x proceed as follows: access up, press F and A at the same time enter the password following the procedure on chapter “Programming LMV2x”. Press ENTER until the display will show: To copy the configuration from AZL2x to LMV.
  • Page 94 ERROR CODE TABLE...
  • Page 109 WIRING DIAGRAM Wiring connection for LMV20 Electrical supply Burner flange Fanmotor input Safety loop Lokout signal Continuous fan operator Valve External valveSV gnition transformer Valve Operation sgnal Reset Reserve Common Increase output Pressure switch leakage test Decrease input gasPGCP ON/OFF thermosta Minimum gas pressure switch Air pressure switch LUFT...
  • Page 110 Wiring variants for LMV27 ConnectorX75 2 - Fuel meter input 1 - Supply fuel meter ConnectorX5-02 ConnectionsPmax...
  • Page 111 Wiring variants for LMV26 ConnectorX08-04 / X09-04 2 - Fuel 0 1 - Fuel1 ConnectorX75 2 - Fuel meter input 1 - Supply fuel meter ConnectorX64 5 -Power supply speed sensor 4 -Speed sensor input 3 - PWM (Pulse Width Modulation) speed output 2 - GND (signal reference) 1 -Controller input (4÷20mA) ConnectorX74...
  • Page 112 Wiring variants for LMV37 ConnectorX75 2 - Fuel meter input 1 - Supply fuel meter ConnectorX5-02 Connections Pmax ConnectorX64 5 -Power supply speed sensor 4 -Speed sensor input 3 - PWM (Pulse Width Modulation) speed output 2 - GND (signal reference) 1 -Controller input (4÷20mA) ConnectorX74 5 -Supply...
  • Page 116 C.I.B. UNIGAS S.p.A. Via L.Galvani, 9 - 35011 Campodarsego (PD) - ITALY Tel. +39 049 9200944 - Fax +39 049 9200945/9201269 web site: www.cibunigas.it - e-mail: cibunigas@cibunigas.it Note: Specifications and and data subject to change. Errors and omissions excepted.

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