Page 1 HR91A HR92A HR93A HR512A HR515A HR520A HR525A LMV2x Microprocessor controlled Gas - light oil burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039252CE 0.1 12/2020...
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: SPECIFICATIONS PART I: SPECIFICATIONS GENERAL FEATURES Note: the figure is indicative only Control panel with startup switch Gas train Electrical panel Cover Blast tube + Combustion head Flange Silencer Actuator Air pressure switch 10 Oil manifold 11 Pump Fig.
Page 6: Burner Model Identification
Burners are identified by burner type and model. Burner model identification is described as follows. Type HR512A Model MD. S. BURNER TYPE HR91A, HR92A, HR93A, HR512A, HR515A, HR520A, HR525A FUEL B - Biogas M - Natural gas L - LPG G - Light oil...
Page 7 PART I: SPECIFICATIONS HR525A BURNER TYPE HR512A MG.. HR515A MG.. HR520A MG.. HR525A MG...xx MG...50 600 - 4.500 770 - 5.200 1000 - 6.400 2000 - 6.700 2000 - 8.000 Output min. - max. kW Natural gas - Light oil Fuel Category (see next paragraph)
Page 8 441 1017 421 1406 971 435 269 299 228 447 360 523 M12 424 280 300 632 148 484 846 292 708 228 185 HR92A 1507 242 831 327 35 300 579 132 441 1017 421 1437 1002 435 269 299 228 447 360 523 M12 424 280...
Page 9 Overall dimensions (mm) Burner flange Boiler recommended drilling template AC AD AE 1669 320 924 364 35 326 595 100 517 1139 446 1590 644 340 380 494 540 560 M14 552 390 763 149 614 845 190 830 315 270 1669 320 924 364 35 326 611 117 517 1139 446 1613...
Page 10 HR91A - HR92A - HR93A 3I2MG-21 v0 Hydraulic diagram LEGEND POS OIL TRAIN Filter Flexible hose Pump and pressure governor oil inlet Electrical motor Solenoid valve Solenoid valve oil outlet Oil distributor Pressure gauge Pressure governor Pressure switch One-way valve 16.1 One-way valve...
Page 11 HR512A - HR515A - HR520A - HR525A Fig. 2 - 3I2MG-23 v0 Hydraulic diagram BY OTHERS 3I2MG23 LEGEND rev.0 BY BURNER CONSTRUCTOR POS OIL TRAIN Filter Flexible hose Pump and pressure governor Electrical motor Flexible hose Solenoid valve Flexible hose 3-way solenoid valve oil inlet Flexible hose...
Page 12 PART I: SPECIFICATIONS 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 13: Performance Curves
PART I: SPECIFICATIONS Performance Curves HR91A HR92A 1200 1600 2000 2400 2800 3200 1200 1600 2000 2400 2800 HR93A HR512A 500 1000 1500 2000 2500 3000 3500 4000 4500 1500 2500 3500 4500 HR515A HR520A 1500 2500 3500 4500 5500...
Page 14 PART I: SPECIFICATIONS Pressure in the Network / gas flow rate curves (natural gas) HR91A MG.. HR92A MG.. HR93A MG.. HR512A MG.. HR515A MG.. HR520A MG.. HR525A MG.. Rp2 HR525A MG.. DN65-80-100 ATTENTION: 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 15 Pressure in the Network / gas flow rate curves (LPG) PART I: SPECIFICATIONS HR91A LG.. HR93A LG.. HR512A LG.. HR520A LG.. ATTENTION: 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 16 PART I: SPECIFICATIONS Combustion head gas pressure curves Combustion head gas pressure depends on gas flow and combustion chamber backpressure. When backpressure is subtracted, i depends only on gas flow, provided combustion is properly adjusted, flue gases residual O2 percentage complies with “Recommended combustion values”...
Page 17 Curves are referred to pressure = 0 mbar in the combustion chamber! HR91A MG.. HR92A MG.. 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 HR93A MG..
Page 18 PART I: SPECIFICATIONS HR91A LG.. HR93A LG.. 100 110 120 130 140 150 160 HR512A LG.. HR520A LG.. 1 0 0 1 2 5 1 5 0 1 7 5 2 0 0 2 2 5 2 5 0...
Page 19 PART II: INSTALLATION PART II: INSTALLATION MOUNTING AND CONNECTING THE BURNER Packing The burners are despatched in wooden crates whose dimensions are: 9xA series: 1672mm x 1072mm x 1016mm (L x P x H)  5xxA series: 1886mm x 1456mm x 1120mm (L x P x H) ...
Page 20 PART II: INSTALLATION 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 . In case the burner must be coupled with boilers with a combustion chamber smaller in dia- meter or shorter than those described in the diagram, please contact the supplier, to verify that a correct matching is possible, with respect of the application involved.
Page 21 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. Gas train with valves group VGD and MBE with built-in gas pressure governor + gas leakage pressure switch (PGCP) BY OTHERS SUPPLIED BY BURNER CONSTRUCTOR GAS INLET...
Page 22 PART II: INSTALLATION To mount the gas train, proceed as follows: In case of threaded joints: use proper seals according to the gas used- in case of flanged joints: place a gasket between the ele- ments Fasten all the items by means of screws, according to the diagrams showed, observing the mounting direction for each item NOTE: the bellows unit, the manual cutoff valve and the gaskets are not part of the standard supply MultiBloc MBE ALLA V.
Page 23 PART II: INSTALLATION Mounting VD-R & PS-... ActuatorVD-V ActuatorVD-R The actuator VD-V does not need any adjustment (funzione M12 x 5 Pin  ON-OFF) The actuator VD-R It must be combined with the PS sensor  (include regolatore di pressione) The PS sensor chosen based on the necessary pressure ...
Page 24 PART II: INSTALLATION SIEMENS VGD.. Mounting positions = BS SKP1. SKP2. version with SKP2 (built-in pressure stabilizer) Siemens VGD valves with SKP actuator: The pressure adjusting range, upstream the gas valves group, changes according to the spring provided with the valve group. To replace the spring supplied with the valve group, proceed as fol- lows: - Remove the cap (T)
Page 25 PART II: INSTALLATION The pilot gas train is already installed to the burner, the following connections must be executed: connection from the stabiliser with filter to the gas supply network SIEMENS VGD40.. A - to the burner B - connection to the gas supply network (Maximum pressure in accordance with the pressure stabiliser, see gas regulator label) C - gas proving system connection (optional) Pilot gas train (if provided)
Page 26 PART II: INSTALLATION Integrated proving system (burners equipped with LME7x, LMV, LDU) This paragraph describes the integrated proving system operation sequence: At the beginning both the valves (EV1 and EV2) must be closed.  Test space evacuating: EV2 valve (burner side) opens and keep this position for a preset time ...
Page 27 PART II: INSTALLATION Installation diagram of light oil pipes please read carefully the “warnings” chapter at the beginning of this manual. Fig. 5 - 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 28 PART II: INSTALLATION Do not use PTFE tape on the suction and return line pipes to avoid the possibility that particles enter circulation. These could depo-  sit on the pump filter or the nozzle, reducing efficiency. Always use O-Rings or mechanical seal (copper or aluminium gaskets) jun- ctions if possible.
Page 29 PART II: INSTALLATION Connecting the oil flexible hoses to the pump To connect the flexible 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 lines: see the arrows marked on the pump.
Page 30: 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 31 PART III: OPERATION PART III: OPERATION DANGER! Incorrect motor rotation can seriously damage property and injure people.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”.
Page 32: Gas Operation
PART III: OPERATION - BURNER FRONT PANEL h min s Main switch (0=Off, 1=GAS, 2=OIL) CMF switch (0=stop, 1=low flame, 2=high flame, 3=automatic) - fully modulating burners only Gas valves EV2 operation signalling lamp Gas valves EV1 operation signalling lamp Gas pressure switch signalling lamp Oil pump in operation lamp Oil valve EVG operation signalling lamp...
Page 33: User Interface
PART III: OPERATION At the end of the pre-purge time, the actuator is in the light oil ignition position: the ignition transformer is energised (lamp B4 on);  the ignitor gas valves and the light oil valves open. Few seconds after the valves opening, the transformer is de-energised and lamp B4 turns off.
Page 34: Setting Menu
PART III: OPERATION 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 35 PART III: OPERATION Controllo bruciatore Burner control OEM / Service Curve rapporto Ratio curves OEM / Service Controllo rapporto Ratio control OEM / Service Servocomandi Actuators OEM / Service Storico errori Error history OEM / Service / Info Dati di processo Process data OEM / Service / Info The accesses to the various blocks are allowed by passwords.
Page 36: 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 37: Parameter Description
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 38: 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 39: Adjustments For Gas Operation
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 40: Pressure Taps
PART III: OPERATION Regulation VD-R whith PS Setting scale is „Not“ linear! Various sensors available. Output pressure according to sensor‘s measuring range. Increasing pressure Adjust the outlet pressure to the value specified by the burner or equipment manufacturer! While making outlet pressure adjustments, do not exceed a value that creates a hazardous condition to the burner! Decreasing pressure...
Page 41 PART III: OPERATION Calibration air and gas pressure switches The air pressure switch locks the control box if the air pressure is not the one requested. If it happens, unlock the burner by means of the control box unlock pushbutton, placed on the bur- ner control panel.
Page 42 PART III: OPERATION CAUTION: perform these adjustments once the burner is turned off and cooled. Center head holes gas flow regulation (natural gas burners) To adjust the gas flow, partially close the holes, as follows: loosen the three V screws that fix the adjusting plate D; insert a screwdriver on the adjusting plate notches and let it move CW/CCW as to open/close the holes;...
Page 43 PART III: OPERATION Adjustment procedure for light oil operation The light oil flow rate can be adjusted choosing a by-pass nozzle that suits the boiler/utilisation output and setting the delivery and return pressure values according to the ones quoted on the below diagrams. FLUIDICS NOZZLE: REFERENCE DIAGRAM (INDICATIVE ONLY) Atomisation angle FLOW RATE kg/h...
Page 44 PART III: OPERATION NOZZLE SUPPLY PRESSURE = 20 bar Example (Bergonzo): if a 220kg/h flow rate BERGONZO nozzle is provided, set the return pressure at 11bar, supply at 20bar on the delivery to get a 220kg/h flow rate. If the return pressure needed is 5bar, instead, act on the V adjusting screw on the pressure gover- nor.
Page 45 PART III: OPERATION Fig. 8...
Page 46 PART III: OPERATION...
Page 47 PART III: OPERATION Oil Flow Rate Settings Once the air and gas flow rates are adjusted, turn the burner off, switch to the oil operation (OIL, on the burner control panel). with the electrical panel open, prime the oil pump acting directly on the related CP contactor (see next picture): check the pump motor rotation and keep pressing for some seconds until the oil circuit is charged;...
Page 48: 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 49 PART IV: MAINTENANCE Gas filter maintenance To clean or remove the filter, proceed as follows: 1 remove the cap unscrewing the fixing screws (A); 2 remove the filtering cartridge (B), clean it using water and soap, blow it with compressed air(or replace it, if necessary) 3 replace the cartridge in its proper position taking care to place it inbetween the guides as not to hamper the cap replacement;...
Page 50: Electrodes Adjustment
PART IV: MAINTENANCE Electrodes Adjustment 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 51: Seasonal Stop
PART IV: MAINTENANCE Ignition pilot electrode positions (Dptional) ATTENTION: avoid contact between electrodes and metallic parts (blast tube, head, etc.), otherwise the burner’s operation would be compromised. Check the electrodes position after any intervention on the combustion head. Checking the detection current To check the detection signal follow the scheme in the picture below.
Page 52 PART IV: MAINTENANCE TROUBLESHOOTNG GUIDE Gas operation * No electric power supply * Restore power supply * Main switch open * Close switch * Thermostats open * Check set points and thermostat connections * Bad thermostat set point or broken thermostat * Reset or replace the thermostat * No gas pressure * Restore gas pressure...
Page 53 PART IV: MAINTENANCE TROUBLESHOOTNG GUIDE - Light oil operation * No electric power supply * Wait for electric power supply is back * Main switch open * Close the switch * Thermostats open * Check set points and thermostat connections * Bad thermostat set point or broken thermostat * Set or replace the thermostat * No gas pressure...
Page 54 BURNER EXPLODED VIEW 1.1.1 1.21.4 1.21.1 1.21.3 1.21.2 1.12 14.1 14.3 14.2 3.2.2 1.23 1.5.1 1.5 1.15 1.10 1.15 1.15 3.2.1.1 3.2.1.2 7.1.3 7.1.1 4.10 7.1.2 10.9 4.1.3 7.1.6 10.3 4.1.2 10.2 4.1.1 10.8 10.4 10.1 10.7...
Page 55 POS. DESCRIPTION POS. DESCRIPTION POS. DESCRIPTION BURNER HOUSING O RING 10.4 SWITCH 1.1.1 COVER O RING 10.7 OUTPUT CONTROLLER INSPECTION GLASS COUPLING 10.8 SWITCH INLET 4.1.1 HALF-COUPLING 10.9 CONTROL PANEL CERAMIC FIBRE ROPE 4.1.2 ELASTIC RING DISTRIBUTOR AIR PRESSURE SWITCH 4.1.3 HALF-COUPLING AIR INLET CONE 1.5.1 AIR PRESSURE SWITCH...
Page 56 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 57 AZL2x - LMV2x/3x Burner Management System Service manual 03/2023 M12916CD Rev. 3.4...
Page 58 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 59: 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 60 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 61: National Standards
-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 62 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 63 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 64 Parameters level (heating engineer)
Page 65 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 66 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 67 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 68 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 69 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 70 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 71 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 72 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 73 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 74 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 75 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 76 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 77 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 78 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 79 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 80 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 81 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 82 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 83 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 84 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 85 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 86 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 87 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 88 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 89 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 90: 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 91 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 92 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 93 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 94: 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 95: 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 96 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 97 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 98 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 99 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 100 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 101 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 102 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 103 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 104 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 105 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 106 ERROR CODE TABLE...
Page 121 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 122 Wiring variants for LMV27 ConnectorX75 2 - Fuel meter input 1 - Supply fuel meter ConnectorX5-02 ConnectionsPmax...
Page 123 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 124 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 128 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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Unigas HR92A Manual Of Installation - Use - Maintenance

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