CIB UNIGAS LMV2 Series Manual Of Installation - Use - Maintenance
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CIB UNIGAS LMV2 Series Manual Of Installation - Use - Maintenance

Microprocessor-controlled light oil burners
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PG60 - PG70 - PG81
LMV2x Microprocessor-controlled
Light oil burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M039336CA Rel. 0.8 01/2023

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Summary of Contents for CIB UNIGAS LMV2 Series

  • Page 1 PG60 - PG70 - PG81 LMV2x Microprocessor-controlled Light oil burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039336CA Rel. 0.8 01/2023...

  • 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

    3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS DIRECTIVES AND STANDARDS Gas burners GENERAL European directives  The burner shall be installed by qualified personnel and in compliance -Regulation 2016/426/UE (appliances burning gaseous fuels) with regulations and provisions in force; wrong installation can cause -2014/35/UE (Low Tension Directive) injuries to people and animals, or damage to property, for which the -2014/30/UE (Electromagnetic compatibility Directive)

  • Page 4: Symbols Used

    Burner data plate Type Gas - Light oil burners For the following information, please refer to Model Year European Directives the data plate: S.Number -Regulation 2016/426/UE (appliances burning gaseous fuels) burner type and burner model: must be Output  Oil Flow -2014/35/UE (Low Tension Directive) reported in any communication with the Fuel...

  • Page 5: General Features

    PART I: INSTALLATION PART I: INSTALLATION GENERAL FEATURES Monobloc burners of this series are made in die-cast aluminium housing with relative flange to work on heating generators. The output range is from 150kW to 1900kW (according to the model). They can be provided in progressive or fully-modulating version. The fuel coming from the supply line, is pushed by the pump to the nozzle and then into the combustion chamber, where the mixture between fuel and air takes place and consequently the flame.
  • Page 6 PART I: INSTALLATION PART I: INSTALLATION GENERAL FEATURES Monobloc burners of this series are made in die-cast aluminium housing with relative flange to work on heating generators. The output range is from 150kW to 1900kW (according to the model). They can be provided in progressive or fully-modulating version. The fuel coming from the supply line, is pushed by the pump to the nozzle and then into the combustion chamber, where the mixture between fuel and air takes place and consequently the flame.

  • Page 7: Burner Model Identification

    PART I: INSTALLATION Burner model identification Burners are identified by burner type and model. Burner model identification is described as follows. Type PG60 Model PG60-PG70-PG81 (1) BURNER TYPE G - Light oil A - Biodiesel (2) FUEL PR - Progressive MD - Fully modulating (3) OPERATION(Available versions) (4) BLAST TUBE...
  • Page 8 PART I: INSTALLATION Technical specificationsPerformance curves PG60 PG70 1 000 1 1 00 1 200 1 00 PG81 1 000 1 200 1 400 1 600 1 800 2000 To get the input in kcal/h, multiply value in kW by 860. Data are referred to standard conditions: atmosferic pressure at 1013mbar, ambient temperature at 15°C.
  • Page 9 Overall dimensions (mm) - PG60 Suggested boiler drilling template Burner flange...
  • Page 10 Overall dimensions (mm) - PG70, PG81 Burner flange Suggested boiler drilling Omin Omax PG70 1147 1297 130 198 300 228 374 PG81 1177 1327 139 234 300 264 376 *B, C = measure referred to burner fitted with standard blast tube *BL, CL = measure referred to burner fitted with extended blast tube...
  • Page 11 (PG60, PG70, PG81) HYDRAULIC DIAGRAMS Fig. 3 - 3I2G-24 v0 Hydraulic diagram ON BOARD ITEMS SUPPLIED LOOSE ITEMS OIL TRAIN Filter Flexible hose Pump and pressure governor Solenoid valve oil inlet Flexible hose Solenoid valve oil outlet Oil distributor Flexible hose Pressure gauge Pressure governor Actuator...
  • Page 12 (PG81) HYDRAULIC DIAGRAMS - (version with a separate pump motor) Fig. 4 - 3I2G-23 v0 Hydraulic diagram ON BOARD ITEMS SUPPLIED LOOSE ITEMS OIL TRAIN Filter Flexible hose Pump and pressure governor Electrical motor Solenoid valve Flexible hose oil inlet Solenoid valve Oil distributor oil outlet...
  • Page 13 PART I: INSTALLATION MOUNTINGS AND CONNECTIONS Packing The burners are dispatched in wooden pakages whose dimensions are: PG60: 1200 x 670 x 540 mm (L x P x H) PG70-PG81: 1400 x 1000 x 220 mm (L x P x H) Packing cases of this kind are affected by humidity and are not suitable for stacking.
  • Page 14 PART I: INSTALLATION Fitting the burner to the boiler To install the burner into the boiler, proceed as follows: make a hole on the closing door of the combustion chamber as described on paragraph “Overall dimensions”) place the burner to the boiler: lift it up and handle it according to the procedure described on paragraph “Handling the burner”; place the stud bolts (5) on boiler’s door, according to the burner drilling template described on paragraph “Overall dimensions”;...
  • Page 15 PART I: INSTALLATION Hydraulic diagrams for light oil supplying circuits Fig. 6 - Gravity circuit Fig. 7 - Ring circuit Fig. 8 - Suction circuit Manual valve Light oil filter Light oil feeding pump One way valve Flexible hoses Relief valve NOTE: in plants where gravity or ring feed systems are provided, install an automatic interception device (see n.
  • Page 16 PART I: INSTALLATION Installation diagram of light oil pipes PLEASE READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNING OF THIS MANUAL. From tank To tank Fig. 9 - Double-pipe system The burner is supplied with filter and flexible hoses, all the parts upstream the filter and downstream the return flexible hose, must be installed by the customer.
  • Page 17 PART I: INSTALLATION PG81: Suntec TA2 / HP- UHE-A  PumpSuntec AJ6 Viscosity 2.8 - 75 cSt Oil temperature 60°C max Inlet maximum pressure 2 bar Inlet minimum pressure - 0.45 bar to avoid gasing Rated speed 3600 rpm max. Suntec J6 - J7 Oil viscosity 2.8 - 200 cSt...
  • Page 18 PART I: INSTALLATION Light oil pumps Suntec E6 - E7 1001 Oil viscosity 3 - 75 cSt Oil temperature 0 - 90°C Inlet maximum pressure 1,5 bar Maximum return pressure 1,5 bar Minimum inlet pressure - 0,45 to avoid gasing Rotation speed 3600 rpm max.
  • Page 19 PART I: INSTALLATION Connecting the light oil flexible hoses To connect the flexible light oil hoses to the pump, proceed as follows, according to the pump provided: remove the closing nuts A and R on the inlet and return connections of the pump; screw the rotating nut of the two flexible hoses on the pump being careful to avoid exchanging the inlet and return lines: see the arrows marked on the pump that show the inlet and the return (see prevoius paragraph).
  • Page 20 PART I: INSTALLATION Light oil nozzles The light oil flow rate can be adjusted choosing a by-pass nozzle that suits the boiler/utilisation’s output and setting the delivery and return pressure values according to the values quoted on diagram on Fig. 10. NOZZLE HIGH FLAME LOW FLAME...
  • Page 21 PART I: INSTALLATION FLUIDICS KW3...60° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 22 PART I: INSTALLATION FLUIDICS KW3...60° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar)
  • Page 23 PART I: INSTALLATION FLUIDICS KW3...60° NOZZLE SUPPLY PRESSURE = 20 bar. VISCOSITY AT NOZZLE = 5 cSt The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the curve Pressure on return (bar) The nominal size of the nozzle is indicated at the ends of the...

  • Page 24: Electrical Connections

    PART I: 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 25: User Interface

    PART I: INSTALLATION ADJUSTMENTS Adjustments - brief description ATTENTION: before starting the burner up, be sure that the manual cutoff valves are open. Be sure that the mains switch is closed. Before starting up the burner, make sure that the return pipe to the tank is not obstructed. Any obstruction would cause the pump seal to break.
  • Page 26 PART I: INSTALLATION +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: Lock+unlock codes...
  • Page 27 PART I: INSTALLATION t22 = tempo di salita ventilatore (motore ventilatore = ON, valvola intercetta- t22 = fan ramp up time (fan motor = ON, Ph22 zione di sicurezza = ON) safety shutoff valve = ON) Ph24 Verso posizione preventilazione Traveling to the prepurge position Ph30 t1 = tempo preventilazione...

  • Page 28: Info Level

    PART I: INSTALLATION 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 29: Parameter Description

    PART I: INSTALLATION 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 30: Service Level

    PART I: INSTALLATION 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 31 PART I: INSTALLATION .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 32 PART I: INSTALLATION Adjustment procedure for light oil operation Open the electrical panel to check the motor rotation and act directly on its contactor (see next picture): keep pressed until the oil circuit is charged. bleed the air from the M pressure gauge port (Fig. 11) by loosing the cap without removing it, then release the contactor. Suntec AJ6 Suntec J6 /E6 Suntec TA.
  • Page 33 PART I: INSTALLATION Pressure gauge port Fig. 13 - Combustion head with light oil gun (PG70 - PG81) Fig. 14 in order to get the maximum oil flow rate, adjust the pressure (reading its value on the PG pressure gauge): checking always the combu- stion parameters The burner is factory-set with the head in its MAX position (maximum output).
  • Page 34 PART I: INSTALLATION Maximum oil pressure switch The oil pressure switch on the return line, checks that the pressure does not exceed a default value. This value must not be higher than the maximum acceptable pressure on the return line (this value is reported on the specification table). A pressure change on the return line could affect the combustion parameters: for this reason, the pressure switch must be set, say, at 20% over the pressure recorded during the combustion adjustment.

  • Page 35: Limitations Of Use

    PART II: OPERATION PART II: OPERATION LIMITATIONS OF USE THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY CONNEC- TED TO A HEAT GENERATOR (E.G. BOILER, HOT AIR GENERATOR, FURNACE, ETC.), ANY OTHER USE IS TO BE CONSIDE- RED IMPROPER AND THEREFORE DANGEROUS.

  • Page 36: Burner Control Panel

    PART II: OPERATION Burner control panel Keys ON-OFF main switch Lockout signalling lamp Signalling lamp for light oil solenoid valve opening Thermal cutout intervention signalling lamp High flame operation signalling lamp Low flame operation signalling lamp Ignition transformer operation signalling lamp R AZLx...

  • Page 37: Routine Maintenance

    PART III: MAINTENANCE PART III: 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 38 PART III: MAINTENANCE Removing the combustion head and the oil gun Remove the top cover C; remove the photoresistor from its seat; unscrew the revolving connectors (E in figure) on the fuel pipes (use 2 spanners to avoid loosening the connections attached to the distributor block);...
  • Page 39 PART III: MAINTENANCE Correct position of electrodes and combustion head ATTENTION: avoid the electrodes to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler operation would be compromised. Check the electrodes position after any intervention on the combustion head. To guarantee a good ignition the measures shown on the next picture Fig.

  • Page 40: Flame Detector

    PART III: 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 41: Troubleshooting

    PART III: MAINTENANCE TROUBLESHOOTING  MAIN SWITCH OPEN  LINE FUSE INTERVENTION   MAX. PRESSURE SWITCH FAULT  FAN THERMAL CUTOUT INTERVENTION  AUXILIARY RELAIS FUSES INTERVENTION      CONTROL BOX FAULT  SERVOCONTROL FAULT  ...
  • Page 42 PART III: 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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