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Unigas R91 Installation Manual

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R91 - R92 - R93
R512 -R515
R520 - R525
LMV2x/3x
Microprocessor-controlled
Multihead gas burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M039267CA 0.1 07/2015

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  • Page 1 R91 - R92 - R93 R512 -R515 R520 - R525 LMV2x/3x Microprocessor-controlled Multihead gas burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039267CA 0.1 07/2015...

  • 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 PRO- DUCT 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. -2006/95/CEC (Low Tension Directive) In case of damage to the cable, switch off the unit and contact qualified -2004/108/EC (Electromagnetic compatibility Directive)

  • Page 4: Symbols Used

    -2006/95/EC (Low Tension Directive) -2004/108/EC (Electromagnetic compatibility Directive) -2006/42/EC (Machinery Directive) Harmonized standards -UNI EN 676 (Automatic forced draught burners for gaseous fuels) -EN 55014-1 (Electromagnetic compatibility- Requirements for house hold appliances, electric tools and similar apparatus) -CEI EN 60335-1 (Specification for safety of household and similar elec- trical appliances) -EN 50165 (Electrical equipment of non-electric appliances for household and similar purposes.

  • Page 5: General Features

    PART I: SPECIFICATIONS PART I: SPECIFICATIONS 1.0 GENERAL FEATURES These burners are designed to be installed into boilers provided with very big combustion chamber but the tube nest very close to the burner stokhole. The flame produced by this burner series is very short, but has the energy necessary to take up all the combustion chamber and then exchange this energy to the water, as to get very high efficiency.
  • Page 6 Burners are identified by burner type and model. Burner model identification is described as follows. Type Model MD. S. BURNER TYPE R91, R92, R93, R512, R515, R520, R525 FUEL M - Natural gas OPERATION (Available versions) PR - Progressive MD - Fully modulating...

  • Page 7: Burner Type

    PART I: SPECIFICATIONS Note1: All gas flow rates are referred to Stm /h (1013 mbar absolute pressure, 15 °C temperature) and are valid for G20 gas (net calorific value H = 34.02 MJ/Stm Note2: Maximum gas pressure = 500mbar (with Siemens VGD) Minimum gas pressure = see gas curves.
  • Page 8 1.4 Overall dimensions (mm) Burner flange Boiler recommended drilling tem- plate AD AN R91 VS - 1.50 1464 549 100 326 419 1138 1173 436 255 386 255 442 221 449 464 M12 510 778 404 374 624 216 739 185 R91 VS - 1.65...
  • Page 9   Burner flange Boiler recommended drilling template R515 VS - 1.50 50 1560 474 508 1236 565 1714 1071 643 700 M16 700 1009 404 605 970 270 R515 VS - 1.65 65 1560 474 508 1236 565 1692 1049 643 700 M16 700 404 483 987 270...
  • Page 10 PART I: SPECIFICATIONS 1.5 How to read the burner “Performance curve” To check if the burner is suitable for the boiler to which it must be instal- Campo di lavoro bruciatori lled, the following parameters are needed: Tipo P60 Mod. M-xx.x.IT.A.0.50 - M-.xx.x.IT.A.0.65 furnace input, in kW or kcal/h (kW = kcal/h / 860);...

  • Page 11: Performance Curves

    PART I: SPECIFICATIONS 1.7 Performance Curves 1200 1600 2000 2400 2800 3200 1200 1600 2000 2400 2800 R512 500 1000 1500 2000 2500 3000 3500 4000 4500 1500 2500 3500 4500 R515 R520 1500 2500 3500 4500 5500 6500 7500 1500 2500 3500...
  • Page 12 PART I: SPECIFICATIONS 1.8 Pressure in the Network / gas flow rate curves (natural gas) R91 M-.. R92 M-.. R93 M-.. R512 M-.. R515 M-.. R520 M-.. R525 M-.. Rp2 R525 M-.. DN65-80-100 Caution: the gas rate value is quoted on the x-axis, the related network pressure is quoted on the y-axis (pressure value in the combustion chamber is not included).
  • Page 13 PART I: SPECIFICATIONS 1.9 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 14 PART I: SPECIFICATIONS 1.11 Pressure - rate in combustion head curves (natural gas) Curves are referred to pressure = 0 mbar in the combustion chamber! R91 M-.. R92 M-.. 100 120 140 160 180 200 220 240 260 280 300 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 R93 M-..
  • Page 15 PART II: INSTALLATION PART II: INSTALLATION 2.0 MOUNTING AND CONNECTING THE BURNER 2.1 Packing The burners are despatched in wooden crates whose dimensions are: 9x series: 1720mm x 1420mm x 1130mm (L x P x H) 5xx series: 1960mm x 1360mm x 1310mm (L x P x H) 525: 1960mm x 1460mm x 1310mm (L x P x H) Packing cases of this type are affected by humidity and are not suitable for stacking.
  • Page 16 PART II: INSTALLATION a = 0 - 50 mm Fig. 5...

  • Page 17: Assembling The Gas Train

    PART II: INSTALLATION 3.0 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 18 PART II: INSTALLATION ATTENTION: it is recommended to mount filter and gas valves to avoid that extraneous material drops inside the valves, during maintenance and cleaning operation of the filters (both the filters outside the valves group and the ones built-in the gas valves). The procedures of installation fo the gas valves are showed in the next paragraphs, according to the gas train used: threaded gas trains with Siemens VGD20..
  • Page 19 PART II: INSTALLATION 0 - 22 15 - 120 100 - 250 Performance range (mbar) neutral yellow Spring colour Once the gas train in installed, execute the electrical connections for all its items (gas valves group, gas proving system, pressure switches).

  • Page 20: Electrical Connections

    PART II: INSTALLATION 4.0 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.
  • 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: Gas Operation

    PART III: OPERATION Fig. 11 - Burner front panel Keys Lock-out LED Hi-flame operation LED Lo-flame operation LED “Ignition transformer operation” LED “Fan motor overload tripped” LED “EV2 opening” LED “EV1 opening” LED “Gas pressure switch signal ” LED Main switch (only on fully modulating burners) Operation selector MAN - AUTO (operation in manual or automatic mode): MIN = operation with minimum output 0 = Stop...

  • Page 23: User Interface

    PART III: OPERATION AIR FLOW AND FUEL ADJUSTMENT 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 Info and Enter keys Used for Info and Service menues Used as Enter key in the setting modes Used as Reset key in the burner operation mode Used to enter a lower level menu -Key - Used to decrease a a value Used to enter Info and Serivce during the curve adjustments +Key + Used to increase a a value...
  • Page 25 PART III: OPERATION During operation, the following program phases are shown. The meaning for each phase is quoted in the table below 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...

  • 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 The Info level shows some basic parameters as: 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...

  • Page 28: Service Level

    PART III: OPERATION 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 29 PART III: OPERATION Parameter Description Flame intensity % output, if set = automatic operation Actuators position, 00=combustibile; 01= aria Lock-outs number 701..725 Lock-outs History (see chapter 23 in the LMV2x manual) .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.
  • Page 30 PART III: OPERATION 4.8 Gas valves Siemens VGD - Version with SKP2. (provided with pressure stabilizer). To increase or decrease gas pressure, and therefore gas flow rate, remove the cap T and use a screwdriver to adjust the regulating screw VR. Turn clockwise to increase the flow rate, counterclockwise to reduce it.
  • Page 31 PART III: OPERATION sting pressure) until the burner lockout, then read the value on the pressure switch scale and set it to a value reduced by 15%. Repeat the ignition cycle of the burner and check it runs properly. Refit the transparent plastic cover on the pressure switch. 4.13 PGCP Gas leakage pressure switch (witn Siemens LDU/LME7x burner control/Siemens LMV Bur- ner Management System) remove the pressure switch plastic cover;...
  • Page 32 PART III: OPERATION 4.16 Starting the burner up by slowly increasing the output The first burner lighting (at the beginnig of the cold season) must be performed in order to gradually heat the boiler.For this reason, timers are installed inside the burner built-in or separate control panel, in oder to control the low flame time.

  • 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 5.2 Replacing the spring in the gas valve group To replace the spring in the gas valve group,proceed as follows: Carefully twist the protection cap 1 and the O-ring 2. remove the “set value” spring 3 from housing 4. Replace spring 3.
  • Page 35 PART IV: MAINTENANCE replace the cable CE and re-assemble the burner following the procedure in the reversed order. If a maintenance operation must be performed on the combustion heads, once the maniflod CO has been removed, proceed as fol- lows: 10 unscrew the eight screws VA that secure the air box CA;...

  • Page 36: Electrodes Adjustment

    PART IV: MAINTENANCE 16 remove the combustion head: to clean it use a vacuum cleaner, scrape off the scale by means of a wire brush; 17 to replace the blast tube from the outside, proceed as follows: unscrew the VB securing dowels and remove the broken blast tube.to replace the blast tubes from the inside: unscrew the VM securing screws and remove the blast tubes plate;...
  • Page 37 PART IV: MAINTENANCE Detection electrode R91, R92, R93, R515 Earth electrode Ignition electrode Matching the combustion heads and the control boxes The combustion head is made of four heads: one is provided with a detection electrode connected to the Siemens LMV control box ;...

  • Page 38: Seasonal Stop

    PART IV: MAINTENANCE 27 (B/C/D) Control box Minimum detection signal Kromschroeder IFW15 1 µA µA DC Fig. 12 5.7 Seasonal stop To stop the burner in the seasonal stop, proceed as follows: turn the burner main switch to 0 (Off position) disconnect the power mains close the fuel valve of the supply line 5.8 Burner disposal...

  • Page 39: Wiring Diagrams

    PART IV: MAINTENANCE 6.0 WIRING DIAGRAMS Refer to the attached wiring diagrams. WARNING 1 - Electrical supply 230V 50Hz 1 a.c./400V 50Hz 3N a.c. 2 - Do not reverse phase with neutral 3 - Ensure burner is properly earthed...

  • Page 40: Troubleshooting

    TROUBLESHOOTING TROUBLE CAUSE MAIN SWITCH OPEN LACK OF GAS MAXIMUM GAS PRESSURE SWITCH DEFECTIVE THERMOSTATS/PRESSURE SWITCHES DEFECTIVES OVERLOAD TRIPPED INTERVENTION AUXILIARIES FUSE INTERRUPTED DEFECTIVE CONTROL BOX DEFECTIVE ACTUATOR AIR PRESSURE SWITCH FAULT OR BAD SETTING MINIMUM GAS PRESSURE SWITCH DEFECTIVE OR GAS FILTER DIRTY IGNITION TRANSFORMER FAULT IGNITION ELECTRODES BAD POSITION...
  • Page 41 BURNER EXPLODED VIEW 13.7.5 13.7.1 13.4 13.2 13.1.1 13.3 13.5 13.1.2 13.7.2 13.7.4 12.2.1 12.2.2 12.2.3 12.1 16.2 13.7.6 14.2 13.7.3 13.7.7 15.3 18.2 15.2 16.1 13.6 15.1 14.3.4 19.6 19.5 19.2 13.1 14.3.3 19.1 19.3 14.3.2 14.3.1 19.4 17.1 14.3.1 17.3 14.1...
  • Page 42 AIR INLET CONE LOUVER SHAFT 13.7.5 LOUVER SHAFT 13.7.6 O RING AIR DAMPER INDEX 13.7.7 O RING GAS FILTER 14.1 RING NUT REVERSIBLE PIPE 14.2 GAS MANIFOLD GAS PRESSURE 14.3.1 BUSH GAS VALVE BODY 14.3.2 ADJUSTING BUSH SKP ACTUATOR 14.3.3 BRACKET SKP ACTUATOR 14.3.4...
  • Page 43 DESCRIPTION DETECTION ELECTRODE IGNITION ELECTRODE GROUND ELECTRODE GASKET GASKET PLUG GAS MANIFOLD COMBUSTION HEAD BLAST TUBE BURNER STAND PLATE GAS MANIFOLD BRACKET WINDBOX IGNITION CABLE DETECTION CABLE...
  • Page 44 APPENDIX LAE and RAR SIEMENS LFE10/LAE10 FLAME DETECTOR P(R) The LFE10 is suited for the supervision of gas flames and luminous or blue-burning oil flames in connection with UV detectors QRA... or a flame 15 LEC1 rectification probe. The LAE10 is designed for the supervision of oil flames in connection with selenium photocell detectors RAR...
  • Page 45 Fig. 2 Ionisation current: > 1 µA Output signal: Potential-free contacts (1 normally closed, 1 normally open) Contact load: max. 2 A Connection terminals: 2 x 1.5 mm2 Flame detection: Lamp in the device Ambient temperature: 20 °C to +60 °C Fitting position: Arbitrary Weight: 370 g Construction: Housing made of impact-resistant plastic.
  • Page 48 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 exceptd.
  • Page 49 AZL2x - LMV2x/3x Burner Management System Service manual 03/2023 M12916CD Rev. 3.4...
  • Page 50 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 51 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 52 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 53 -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 54 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 55 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 56 Parameters level (heating engineer)
  • Page 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64 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 65 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 66 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 67 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 68 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 69 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 70 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 71 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 72 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 73 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 74 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 75 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 76 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 77 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 78 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 79 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 80 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 81 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 82: 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 83 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 84 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 85 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 86: 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 87: 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 88 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 89 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 90 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 91 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 92 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 93 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 94 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 95 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 96 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 97 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 98 ERROR CODE TABLE...
  • Page 113 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 114 Wiring variants for LMV27 ConnectorX75 2 - Fuel meter input 1 - Supply fuel meter ConnectorX5-02 ConnectionsPmax...
  • Page 115 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 116 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 120 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.

This manual is also suitable for:

R92R93R512R515R520R525

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