Unigas K890A Manual Of Installation - Use - Maintenance Download

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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

” (Setting the maximum load) is displayed

Then press

to exit the programming mode.

The display will show:

Press

for a second time: the display will show the load percentage the burner is working at.

When the generator reaches the programmed set-point, the burner will be in stand-by: the display will show

Summary of Contents for K890A

Page 1: ...M039497CB 0 4 06 2023 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES ГОРЕЛКИ MANUAL OF INSTALLATION USE MAINTENANCE K750A K890A K990A Microprocessor controlled LMV2x Gas Light oil burners ...

Page 2: ...be employed exclusively for the use for which it was designed Before connecting the burner make sure that the unit rating is the same as delivery mains electricity gas oil or other fuel Observe caution with hot burner components These are usually near to the flame and the fuel pre heating system they become hot during the unit operation and will remain hot for some time after the burner has stoppe...

Page 3: ...mixtures DIRECTIVES AND STANDARDS Gas burners European directives Regulation 2016 426 UE appliances burning gaseous fuels 2014 35 UE Low Tension Directive 2014 30 UE 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 ...

Page 4: ...equipment of machi nes EN 60335 2 Electrical equipment of non electric appliances for house hold and similar purposes Safety requirements Burner data plate For the following information please refer to the data plate burner type and burner model must be reported in any communication with the supplier burner ID serial number must be repor ted in any communication with the supplier date of productio...

Page 5: ...egulator except for some models for which a separate regulating valve is provided Other pumps are provided with two pressure regulators one for the high and one for low pressure in double stage systems with one nozzle The adjustable combustion head can improve the burner performance The combustion head determines the energetic quality and the geometry of the flame Fuel and comburent are routed int...

Page 6: ...880 7500 1000 8900 1820 9900 Fuel MG Natural gas Light oil LG LPG Light oil Category see next paragraph Gas rate Natural gas min max Stm3 h 93 794 106 942 193 1048 Gas pressure mbar see Note 2 LPG rate min max kg h 33 280 37 332 68 370 Light oil rate min max kg h 74 632 84 750 153 835 74 632 84 750 153 835 Oil viscosity cSt 40 C 2 7 4 Oil density kg m3 840 Light oil train inlet pressure bar max 2 ...

Page 7: ...626 1215 524 1672 946 726 400 440 494 540 560 M16 651 460 460 763 150 614 845 190 830 328 270 65 611 117 1695 969 636 487 845 292 80 626 132 1728 1002 687 538 875 313 100 639 145 1808 1082 791 642 942 353 125 738 175 2073 1347 562 904 754 1192 479 K990A 50 1745 366 1073 670 25 300 595 101 530 626 1215 524 1672 946 726 434 484 494 540 690 M16 651 460 460 763 150 614 845 190 960 328 270 65 611 117 1...

Page 8: ...nd pressure governor 4 Electrical motor 5 Flexible hose 6 Solenoid valve 7 Flexible hose 8 3 way solenoid valve 9 Flexible hose 10 Oil distributor 11 Flexible hose 12 Pressure gauge 13 Pressure governor 14 Electrical motor 15 Pressure switch 16 One way valve 17 Flexible hose 18 Flexible hose 19 Manual valve 19 1 Manual valve 20 Pressure gauge MAIN GAS TRAIN 40 Manual valve 41 Bellows unit 42 Filte...

Page 9: ...mbar ambient temperature at 15 C NOTE The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory tests but does not represent the regulation range of the machine On this diagram the maximum output point is usually reached by adjsuting the combustion head to its MAX position see paragraph Adjusting the combustion head the minimum output...

Page 10: ...ed furnace input This value must be lower or equal to the pgas value calcula ted before GAS PRESSURE mbar K750A Stm3 h K890A Stm3 h GAS PRESSURE mbar K990A Stm3 h 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 To know the minimum pressure at the gas train inlet necessary to get the r...

Page 11: ...s o pressure in combustion chamber surveyed by means of the pressure gauge or taken from the boiler s Technical specifications Measuring gas pressure in the combustion head In order to measure the pressure in the combustion head insert the pressure gauge probes one into the combustion chamber s pres sure outlet to get the pressure in the combustion chamber and the other one into the butterfly valv...

Page 12: ...gas with a calorific value of 8125 kcal Stm3 15 C 1013 mbar and a density of 0 714 kg Stm3 The values in the diagrams refer to GPL with a calorific value of 22300 kcal Stm3 15 C 1013 mbar and a density of 2 14 kg Stm3 When the calorific value and the density change the pressure values should be adjusted accordingly Where Natural gas pressure shown in diagram Real gas pressure Natural gas flow rate...

Page 13: ...e boiler 6 fix the burner to the stud bolts by means of the fixing nuts according to the picture below 7 After fitting the burner to the boiler ensure that the gap between the blast tube and the refractory lining is sealed with appropriate ATTENTION The equipment must be installed in compliance with the regulations in force following the manufac turer s instructions by qualified personnel All hand...

Page 14: ...be lenght follow the instructions of the boiler manufacturer In absence of these consider the following Cast iron boilers three pass flue boilers with the first pass in the rear part the blast tube must protrude no more than Dist 100 mm into the combustion chamber please see the picture below Pressurised boilers with flame reversal in this case the blast tube must penetrate Dm 50 100 mm into combu...

Page 15: ...ount the gas train proceed as follows NOTE the bellows unit the manual cutoff valve and the gaskets are not part of the standard supply WARNING before executing the connections to the gas pipe network be sure that the manual cutoff valves are closed ATTENTION it is recommended to mount filter and gas valves to avoid that extraneous material drops inside the valves during maintenance and cleaning o...

Page 16: ...RUCIATORE ø185 501939 PGMAX PGCP PGMI EV1 EV2 S EV2 EV1 PGMAX PGMIN VD R PGCP VD V VD V VD R PS PS pressure sensor Gas filter Example of gas train MBE A A C B B C 1 Mount flange into pipe systems Use appropriate sealing agent 2 Insert VB together with supplied O rings Check current position of O rings 3 Tighten supplied screws 8xM8x30 in accordance with section 8 4 Screws 4xM5x25 for VD assembly a...

Page 17: ... pressure switches set to 20 of the setpoint 2 Mounting on pipe Sensor position 5x DN according to MBE Pipe fitting with female thread size mount sensor with seal observe torque 3 The pressure sensor includes a vent limiter according to UL 353 and ANSI Z21 18 CSA 6 3 No venting required in loca tions where vent limiters are accepted by the jurisdiction 4 Only PS pressure sensors specified by DUNGS...

Page 18: ...on SA SA TP D BS SKP1 SKP2 SIEMENS VGD Mounting positions TP Siemens VGD con SKPx Example of gas train Gas filter PGCP PGMIN PGMAX T VR Performance range mbar neutral yellow red Spring colour SKP 25 0 0 22 15 120 100 250 Spring colour SKP 25 4 7 700 150 1500 Siemens VGD valves with SKP actuator The pressure adjusting range upstream the gas valves group changes according to the spring provided with...

Page 19: ...P has not to detect a rise of pressure Test space filling EV1 opens and keep this position for a preset time td3 in order to fill the test space Test gas pressure EV1 closes and keep this position for a preset time td2 The pressure switch PGCP has not to detect a pressure drop down If all of the test phases are passed the proving system test is successful if not a burner lockout happens On LMV5x a...

Page 20: ...se fuel with additives to avoid the possible formation over time of compounds which may deposit between the gear teeth thus obstructing them After filling the tank wait before starting the burner This will give any suspended impurities time to deposit on the bottom of the tank thus avoiding the possibility that they might be sucked into the pump On initial commissioning a dry operation is foreseen...

Page 21: ...p 2 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 For further information refer to the technical documentation of the pump Diesel filters ATTENTION before the burner first start it is mandatory to fill the adduction pipes with diesel fuel and bleed out residual air bubbles Prior to switching on the burner ...

Page 22: ... RC circuit Siemens between the terminal 2 terminal X3 04 4 in case of LMV2x LMV3x LMV5x LME7x of the base and the earth terminal RC466890660 For LMV5 control box please refer to the clabeling recommendations avaible on the Siemens CD attached to the burner WARNING Respect the basic safety rules make sure of the connection to the earthing system do not reverse the phase and neutral connections fit...

Page 23: ...ns and with a signal in 0 10V controls it through the inverter Generally the curve of the inverter goes from 50 to 100 of the engine revolutions This in addition to improving the setting of the burner also allows a saving on the consumption of the fan engine Terminal interface with Inverter DANFOSS Type Model LMV5 XXXXX M MD xx xx x x xxx EI XXXXX M MD xx xx x x xxx EG XXXXX MG MD xx xx x x xxx EK...

Page 24: ...HE MACHINE EXCEPT FOR ITS MAINTENANCE TO SECURE THE MACHINE ACT ON THE ISOLATOR SWITCH IN CASE OF ANOMALIES THAT REQUIRED A SHUT DOWN OF THE BURNER IT S POSSIBLE TO ACT ON THE AUXILIARY LINE SWITCH LOCATED ON THE BURNER FRONT PANEL IN CASE OF A BURNER SHUT DOWN RESET THE CONTROL BOX BY MEANS OF THE RESET PUSHBUTTON IF A SECOND SHUT DOWN TAKES PLACE CALL THE TECHNICAL SERVICE WITHOUT TRYING TO RESE...

Page 25: ...p 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 The burner is now operating meanwhile the actuator goes to the high flame position after some seconds the two stage operation begins the burner is driven automatically to high flame or low flame according to the plant requirements Operation in high...

Page 26: ...ch or that the flues temperature gets too low to cause condensation in the chimney User interface The AZL2x display is shown below The keys functions are the following 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 achie...

Page 27: ... Serivce during the curve adjustments Key Used to increase a a value Used to enter Info and Serivce during the curve adjustments Keys ESC By pressing and at the same time the ESCAPE function is perfomed to enter a lower level menu Bloc Descrizione Description Password 100 Informazioni generali General OEM Service Info 200 Controllo bruciatore Burner control OEM Service 400 Curve rapporto Ratio cur...

Page 28: ...primo tempo sicurezza trasformatore accensione ON TSA1 1st safety time ignition transformer ON Ph42 TSA1 primo tempo sicurezza trasformatore accensione OFF TSA1 1st safety time ignition transformer OFF t42 preignition time OFF Ph44 t44 intervallo 1 t44 interval 1 Ph50 TSA2 secondo tempo sicurezza TSA2 2nd safety time Ph52 t52 intervallo 2 t52 interval 2 Ph60 Funzionamento 1 stazionario Operation 1...

Page 29: ...ress the enter InFo key 3 then il will show the first code 167 flashing on the right side it will show the data entered By pressing or it is possible to scroll up or down the parameter list 4 If a dot line is shown on the right there is no enough room for complete visualisation press enter again the data will be completely shown for 1 to 3 seconds By pressing enter or and at the same time the syst...

Page 30: ...e End message will flash 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 Parameter Description 167 Cubic meters of fule resettable 162 Ope...

Page 31: ...of phases Example Error code 111 diagnostic code 0 To reset press InFo for a second Record the codes and check the Error List to find the type of faults 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 954 Flame intensity 121 output if set a...

Page 32: ... to drive the burner to the high flame stage set CMF 1 to drive it to the low flame stage set CMF 2 ADJUSTMENTS FOR GAS OPERATION Air flow and gas adjustment startup the burner by selecting GAS by means of the switch on the burner control panel Adjust the air and gas flow rates in according to the air gas ratio curvepoints setting procedure on the LMV manual Check con tinuosly the flue gas analisy...

Page 33: ...ents do not exceed a value that creates a hazardous condition to the burner Adjusting output pressure for positive pressure systems requires PS 10 40 or PS 50 200 Outlet pressure MIN 10 25 50 75 MAX PS 10 40 4 mbar 0 4 kPa 2 w c 10 mbar 1 0 kPa 4 w c 25 mbar 2 5 kPa 10 w c 50 mbar 5 0 kPa 20 w c 75 mbar 7 5 kPa 30 w c 100 mbar 10 0 kPa 40 w c PS 50 200 20 mbar 2 0 kPa 8 w c 50 mbar 5 0 kPa 20 w c ...

Page 34: ... Refit the transparent plastic cover on the pressure switch Calibration the maximum gas pressure switch when provided To calibrate the maximum pressure switch proceed as follows according to its mounting position remove the pressure switch plastic cover if the maximum pressure switch is mounted upstreaam the gas valves measure the gas pressure in the network when flame is off by means of the adjus...

Page 35: ...ro gressively back the combustion head towards the MIN position by turning clockwise the VRT ring nut Fasten VB screw when the adjustment is accomplished Attention if it is necessary to change the head position repeat the air and fuel adjustments described above CAUTION perform these adjustments once the burner is turned off and cooled VRT VB MAX head position MIN head position ...

Page 36: ... 1 NOZZLE SUPPLY PRESSURE 25 bar Atomisation angle according to the return pressure _________ Flow rate ATTENTION To achieve the maximum flow rate close completely the return line FLOW RATE kg h DIMENSIONS Min Max 40 13 40 50 16 50 60 20 60 70 23 70 80 26 80 90 30 90 100 33 100 115 38 115 130 43 130 145 48 145 160 53 160 180 59 180 200 66 200 225 74 225 250 82 250 275 91 275 300 99 300 330 109 330...

Page 37: ...io curve see the LMV related manual 5 Only if necessary adjust the supply pressure as follows see related paragraph insert a pressure gauge into the port shown on Fig 6 and act on on the pump adjusting screw VR see Fig 5 as to get the nozzle pressure at 20bar Monarch or Fluidics nozzles see page 36 38 6 In order to get the maximum oil flow rate adjust the pressure reading its value on the PG press...

Page 38: ...re 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 The factory setting is 4 bar It is recommended to verify that the combustion parameters are within the range of acceptable values even against a pressure varia tion that gets close to the limit of the pressure swit...

Page 39: ...perations refit the burner turn it on and check the combustion If in doubt replace the defec tive nozzle s In case of intensive use of the burner the nozzles must be replaced at the end of the working season examine and clean the detection electrode photoelement according to the burner models replace it if necessary in case of doubt check the detection circuit after the burner start up clean and g...

Page 40: ...ultiBloc VD Mounting Removing the combustion head 1 Remove the top H 2 Remove the UV detector out of its housing disconnect electrode cables and the light oil flexible hoses 3 Loosen the screws V holding the gas manifold G loosen the two connectors E and remove the assembly as shown Note to replace the combustion head reverse the operations described above 4 Clean the combustion head by means of a...

Page 41: ...ws 1 remove the combustion head as described on the prevoius paragraph 2 loosen the VL screw and remove the oil gun and the electrodes check the oil gun replace it if necessary 3 after removing the oil gun unscrew the nozzle and replace it if necessary 4 in order to replace the electrodes unscrew the VE fixing screws and remove them place the new electrodes being careful to observe the measures sh...

Page 42: ... service term In optimal operating conditions and with preventive maintenance the burner can last up to 20 years Upon expiry of the burner service term it is necessary to carry out a technical diagnosis and if necessary an overall repair The burner status is considered to be at its limit if it is technically impossible to continue using it due to non compliance with safety requirements or a decrea...

Page 43: ... Check air pressure switch functions and links Burner control damaged Replace burner control BURNER LOCKS OUT WITHOUT ANY GAS FLOW Gas valves don t open Check voltage on valves if necessary replace valve or the burner control Check if the gas pressure is so high that the valve cannot open Gas valves completely closed Open valves Pressure governor too closed Adjust the pressure governor Butterfly v...

Page 44: ...nition transformer or into the electrodes Improve the installation Ignition transformer damaged Replace the transformer PUMP TOO NOISY Suction too high over 0 35 bar dirty filters check valve in the tank locked and so on Clean filters Replace check valve in the tank Flexible hoses damaged Replace flexible hoses Air infiltration in the pipes Take off all infiltration Pipe too long or too narrow Inc...

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Page 48: ...ia 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 49: ...Service manual AZL2x LMV2x 3x Burner Management System M12916CD Rev 3 4 03 2023 ...

Page 50: ...k 900 Process data 32 Actuators references 33 Gas proving system 33 Air fuel curve points 33 COMMISSIONING THE BURNER 34 Warm setting 38 Cold setting 39 BURNER STARTUP WITH LMV2x ALREADY PROGRAMMED 40 Reset manual lockout 42 Timeout for menu operation 42 Entering the Parameter levels 43 Info level 44 Service level 46 PHASES LIST 47 BACKUP PARAMETER WITH AZL2x 48 RESTORE PARAMETER FROM AZL2x TO LMV...

Page 51: ...UCTIONS FOR BURNERS z The burner should be installed in a suitable room with ventilation openings complying with the requirements of the regulations in force and sufficient for good combustion z Only burners designed according to the regulations in force should be used z This burner should be employed exclusively for the use for which it was designed z Before connecting the burner make sure that t...

Page 52: ...nditions such as the development of toxic or explosive mixtures DIRECTIVES AND STANDARDS Gas burners European directives Directive 2009 142 EC Gas Appliances Directive 2006 95 EC on low voltage Directive 2004 108 EC on electromagnetic compatibility Harmonised standards UNI EN 676 Gas Burners EN 55014 1Electromagnetic compatibility Requirements for household appliances electric tools and similar ap...

Page 53: ...r apparatus EN 50165 Electrical equipment of non electric appliances for household and similar purposes Safety requirements UNI EN 746 2 Industrial thermoprocessing equipment Burner data plate For the following information please refer to the data plate z burner type and burner model must be reported in any communication with the supplier z burner ID serial number must be repor ted in any communic...

Page 54: ...rforms all the burner control functions and of the Siemens AZL local programming unit that interfaces the system with the user Keys 1 Burner 2 AZL2 3 Air actuator 4 Fuel actuator 5 LMV2 User interface The AZL2x display programming unit is shown below 3 4 1 2 5 2 Bild 1 0707 P V h min s VSD ESC nfo A F ...

Page 55: ...vice mode 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 Used to enter Info and Serivce during the curve adjustments Keys ESC By pressing and at the same...

Page 56: ...8 Parameters level heating engineer ...

Page 57: ...cription Password 000 Internal parameters OEM Service 100 Informazioni generali General OEM Service Info 200 Controllo bruciatore Burner control OEM Service 300 Controllo bruciatore solo LMV26 Burner control LMV26 only OEM Service 400 Curve rapporto Ratio curves OEM Service 500 Controllo rapporto Ratio control OEM Service 600 Servocomandi Actuators OEM Service 700 Storico errori Error history OEM ...

Page 58: ...kup data set Service Info Param Descrizione Description Password LMV20 LMV27 LMV26 LMV37 102 Data produzione in gg mm aa Identification date yy mm dd Service Info x x x 103 Numero identificativ Identification number Service Info x x x 104 Set di parametri preimpostati codice cliente Preselected parameter set customer code Service Info x x x 105 Set di parametri preimpostati versione Preselected pa...

Page 59: ...ved OEM Service x x 145 Indirizzo dispositivo per Modbus Device address for Modbus OEM Service x x 146 Velocità di trasmissione per Modbus Baud rate for Modbus OEM Service x x 147 Parità per Modbus Parity for Modbus OEM Service x x 148 on una interruzione della comunicazione bus 0 19 9 bruciatore spento 20 100 20 100 potenza Per il funzionamento multistadio 0 bruciatore OFF P1 P2 P3 non valido nes...

Page 60: ...serci zio azzerabile da Service Fuel 1 Operation hours resettable Service Info x 174 Fuel 1 secondo combustibile Numero di partenze azzerabile da Service Fuel 1 Number of startups resettable Service Info x 175 Fuel 1 secondo combustibile Numero di partenze Fuel 1 Number of startups Service Info x 177 Fuel 1 secondo combustibile Volume com bustibile azzerabile da OEM Fuel 1 Fuel volume resettable m...

Page 61: ...de fuel train modula ting multistage actuators etc __ undefined delete curves 1 gas direct ignition G mod 2 ignition by gas pilot connected between the two gas solenoid valves EV1 EV2 Gp1 mod 3 ignition by gas pilot connected upstream the gas EV1 Gp2 mod 4 light oil ignition modulating Lo mod 5 light oil ignition double stage Lo 2 stage 6 light oil ignition three stage Lo 3 stage 7 gas direct igni...

Page 62: ...e x x x 210 Allarme impedimento avviamento 0 non attivo 1 attivo Alarm in the event of start prevention 0 deactivated 1 activated OEM Service x x x 211 Tempo aumento giri ventilatore valore fab brica 2s range impostazione 2 60 s Fan ramp up time default value 2s range 2 60 s OEM Service x x x 212 Tempo massimo raggiungimento bassa fiamma valore fabbrica 45 s range impo stazione 0 2 s 10 min Stabil...

Page 63: ...ange impostazione 20s 60min Gas Prepurge time default value 20s range 20s 60min OEM Service x x x 226 Gas tempo di preaccensione valore fab brica 2s range impostazione 0 2s 60min Gas Preignition time default value 2s range 0 2s 60min OEM Service x x x 227 Gas tempo di sicurezza 1 TSA1 valore fabbrica 3s range impostazione 0 2 10s Gas Safety time 1 TSA1 default value 3s range 0 2 10s OEM x x x 229 ...

Page 64: ...ivo 1 esso è modificabile solo su LMV37 Dal punto di vista della sicurezza il funzionamento continuo è valido esclusiva mente per bruciatori di gas con elettrodo di rilevazione Gas Forced intermittent operation 0 deacti vated 1 activated OEM x 240 Limite ripetizioni perdita di fiamma valore fabbrica 2 range impostazione 1 2 Repetition limit loss of flame default value 2 range 1 2 OEM x x x 241 Gas...

Page 65: ...s Postpurge time 3 abortion with load controller LR ON OEM Service x x x 261 Olio sonda rilevazione fiamma attivo valore fabbrica 0 0 QRB QRC 1 ION QRA Oil active detector flame evaluation default value 0 0 QRB QRC 1 ION QRA OEM Service x x x 262 Olio preventilazione valore fabbrica 1 1 attivo 0 non attivo In ambito civile la norma EN267 rende obbli gatoria la preventilazione In ambito indu strial...

Page 66: ... inactive 1 active from phase 38 2 active from safety time TSA OEM Service x x 277 Olio Pressostato olio di massima ingresso POC 0 inattivo 1 pressostato olio di massima 2 POC Oil Pressure switch max POC input 0 inactive 1 pressure switch max 2 POC x 279 Olio Forzatura al funzionamento intermittente 0 disattivato 1 attivato Attenzione di default questo parametro è attivo 1 esso è modificabile solo...

Page 67: ...valvole EV1 EV2 del gas regolazione pneumatica Gp1 mod pneu 9 accensione tramite pilota gas con attacco a monte dell elettrovalvola EV1 del gas regolazione pneumatica Gp2 mod pneu 10 olio modulante con accensione tramite pilota LOGp mod Fuel 1 Burner operating mode fuel train modulating multistage actuators etc __ undefined delete curves 1 gas direct ignition G mod 2 ignition by gas pilot connecte...

Page 68: ...ore fabbrica 1 0 QRB QRC 1 ION QRA Fuel 1 Gas active detector flame evalua tion default value 1 0 QRB QRC 1 ION QRA OEM Service x 322 Combustibile 1 Gas Preventilazione valore fabbrica 1 1 attivo 0 non attivo ATTENZIONE In ambito civile la norma EN676 rende obbligatoria la preventilazione In ambito industriale vedere i casi in cui la norma EN746 2 prevede la possibilità di non fare la preventilazi...

Page 69: ...s Intervallo 2 valore fabbrica 2s range impostazione 0 2s 60min Fuel 1 Gas Interval 2 default value 2s range 0 2s 60min OEM Service x 333 Combustibile 1 Gas Tempo postcombu stione valore fabbrica 8s range imposta zione 0 2s 60s Fuel 1 Gas postcombustion time default value 8s range 0 2s 60s OEM Service x 334 Combustibile 1 Gas Tempo postventila zione valore fabbrica 0 2s range impo stazione 0 2s 18...

Page 70: ... filling time default value 3s range 0 2s 10s OEM x 345 Combustibile 1 Gas tempo test pressione gas valore fabbrica 10s range imposta zione 0 2s 60s Fuel 1 Gas proving test time gas pres sure default value 10s range 0 2s 60s OEM x 346 Combustibile 1 Gas tempo attesa consenso pressostato di minima valore fabbrica 10s range impostazione 0 2s 60s Se la pressione del gas è troppo bassa in fase 22 non ...

Page 71: ...ombustibile 1 Olio tempo di risposta a cadute di pressione entro TSA1 e TSA2 valore fabbrica 1 8s range imposta zione 0 2s 14 8s Fuel 1 Oil time to respond to pressure faults in TSA1 and TSA2 default value 1 8s range 0 2s 14 8s OEM x 370 Combustibile 1 Olio Intervallo 1 valore fabbrica 2s range impostazione 0 2s 60min Fuel 1 Oil Interval 1 default value 2s range 0 2s 60min OEM Service x 371 Combus...

Page 72: ...ccensione corta Ph38 fase pro gramma 38 1 preaccensione lunga con ventilatore Ph22 fase programma 22 Fuel 1 Oil time oil ignition default value 1 0 short preignition Ph38 progr phase 38 1 long preignition with fan Ph22 program phase 22 OEM Service x 384 Combustibile 1 Olio Tempo di post ventila zione 3 abortito con regolatore di potenza LR ON Fuel 1 Oil Postpurge time 3 abortion with load controll...

Page 73: ...tting the cur ves OEM Service x x x 403 Curve controllo inverter F A si accede alla lista dei punti da impostare da P0 a P9 con sultare paragrafo Impostazione curve Ratio control curves VSD curve setting only SO x x 404 Combustibile 1 Curve controllo servoco mando combustibile 1 F si accede alla lista dei punti da impostare da P0 a P9 consul tare paragrafo Impostazione curve Fuel 1 Ratio control c...

Page 74: ...prepurge speed 100 Index 2 postpurge speed 50 OEM Service x x 504 Combustibile 1 Posizione servocomando combustibile in assenza di fiamma no flame Indice 0 posizione di sosta 0 Indice 1 posizione preventilazione 0 Indice 2 posizione postventilazione 15 Fuel 1 No flame position fuel actuator Index 0 no load position 0 Index 1 prepurge position 0 Index 2 postpurge position 15 OEM Service x 505 Combu...

Page 75: ...a di carico per modulazione valore fabbrica n d range imposta zione 20 100 Lower load limit default value n d range 20 100 OEM Service x x x 546 Percentuale massima di carico per modula zione valore fabbrica n d range imposta zione 20 100 Higher load limite default value n d range 20 100 OEM Service x x x 565 Combustibile 1 Percentuale minima di carico per modulazione valore fabbrica n d range imp...

Page 76: ... 0 combustibile Indice 1 aria Tolerance limit of position monitoring 0 1 Index 0 fuel Index 1 air OEM Service x x x 608 Combustibile 1 Impostazione punto di riferi mento Indice 0 combustibile Indice 1 aria 0 chiuso 0 1 aperto 90 Fuel 1 Selection of reference point Index 0 fuel Index 1 air 0 closed 0 1 open 90 OEM x 609 Combustibile 1 Direzione rotazione del ser vocomando Indice 0 combustibile Indi...

Page 77: ...stop SQN1 3 both OEM x 613 Tipo di servocomando Indice 0 combustibile Indice 1 aria 0 5s 90 1Nm 1 2Nm 3Nm 1 10s 90 6Nm 2 17s 90 10Nm Type of actuator Index 0 fuel Index 1 air 0 5 s 90 1Nm 1 2Nm 3Nm 1 10 s 90 6Nm 2 17 s 90 10Nm OEM x x x 614 Combustibile 1 Tipo di servocomando Indice 0 combustibile Indice 1 aria 0 5s 90 1Nm 1 2Nm 3Nm 1 10s 90 6Nm 2 17s 90 10Nm Fuel 1 Type of actuator Index 0 fuel I...

Page 78: ...ation of analog output default value 0 0 DC 0 10 V 1 DC 2 10 V 2 DC 0 2 10 V OEM Service LMV27 x x ATTENTION as for SQM3x actuators set the direction according to the acutator function As far as SQN1x actuators set always the counterclockwise direction independently from the model chosen for the specific function ...

Page 79: ...rror history 701 725 02 diagnostic code Service Info Storico errori 701 725 03 classe errore Error history 701 725 03 error class Service Info Storico errori 701 725 04 fase Error history 701 725 04 phase Service Info Storico errori 701 725 05 contatore avvii Error history 701 725 05 startup counter Service Info 725 Storico errori 701 725 06 carico Error history 701 725 06 load Service Info ...

Page 80: ... Active load source OEM Service 945 Solo con LMV26 Combustibile attuale 0 combustibile 0 1 combustibile 1 Actual fuel 0 fuel 0 1 fuel 1 Service Info 947 Risultato interrogazione contatti codifica bit Result of contact sensing bit coded Service Info 950 Stato relè codifica bit Required relay state bit coded Service Info 954 Intensità di fiamma 0 100 minima corrente 30 4µA massima corrente100 16µA m...

Page 81: ... a leakage test designed to detect leaking gas valves and if necessary to pre vent the valves from opening or ignition from being switched on Lockout is initiated When performing valve proving the gas valve on the burner side is opened first to bring the test space to atmospheric pressure Then the valve is closed whereupon the pressure in the test space must not exceed a certain level measured by ...

Page 82: ...V2x already programmed At the first LMV startup the AZL display will show It means that the unit was never set or that no mode was chisen or that some parameters have to be set furthert Push F fuel and A Air together untilthe display shows code and then a 7 digit dashed line blinking on the left Press the key until the first character of the password the default password is 9876 then press ENTER I...

Page 83: ...ll elettrov EV1 del gas Gp2 mod 4 accensione a gasolio modul Lo mod 5 accens a gasolio bistadio Lo 2 stage 6 accens a gasolio tristadio Lo 3 stage Burner operating mode fuel train mod multi stage actuators etc __ undefined delete curves 1 gas direct ignition G mod 2 gas pilot ignition with connection between the two gas solenodi valves EV1 EV2 Gp1 mod 3 gas pilot ignition with connection upstrem t...

Page 84: ...he fuel actuator 0F until the requested value is reached for example 12 15 see below for the ignition point or press F and to decrease the angle To set the air damper opening angle 0A in the ignition point 10 for example see below press A and A and at the same time LMV37 Now the air and fuel quantities are set at the ignition point P0 By pressing point P9 can be programmed to set the air and fuel ...

Page 85: ...ner is operating warm setting by pressing the ENTER InFo or while the burner is in stand by mode cold setting by pressing ENTER 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 ...

Page 86: ...ough the flue analyser Keep the air excess inside normal figures from 3 to 7 residual O2 operating by means for the air damper servomotor Keep increasing the air damper opening and then the gas throttle as done in the sequence above remebering to get the full firing rate wih the gas throttle fully open or the oil pressure regulator at its maximum pressure position See example below If while openin...

Page 87: ...it before end by pressing ESC or for a faulty shutdown the message OFF UPr Start preven tion will be diplayed until all the curvepoints will be set Note2 if the gas flow rate at high flame point maximum load is changed by means of the pressure stabiliser all the curvepoints must be checked by going through the curve downwards and resetting them if necessary Note3 if the point does not flash it mea...

Page 88: ...re than 5 seconds to process the curve downwards The curve is then a straight line go on checking the combustion values point by point change them if necessary and in case linearise the curve again Before starting the burner 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 Press ENTER again it will sho...

Page 89: ...he burntime Ph72 travelling to postpurging Ph74 postpurge countdown is displayed Press ESC the parameter 546 Setting the maximum load is displayed Then press to exit the programming mode The display will show Press for a second time the display will show the load percentage the burner is working at When the generator reaches the programmed set point the burner will be in stand by the display will ...

Page 90: ...on Longer or shorter pushes on the button do not produce a reset so that the system maintains the lockout position Timeout for menu operation The time for automatically leaving the parameter setting level can be adjusted between 10 and 120 minutes using the parameter 127 Timeout for menu operation If during that period of time there is no operation via the AZL2 the parameter setting level is quit ...

Page 91: ... 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: ...and go back to the flashing number The Info level shows some basic parameters as 5 Example choose parameter 102 to show the date the display shows parameter 102 flashing on the left and characters _ _ on the right 6 press InFo for 1 3 seconds the date will appear 7 press InFo to go back to parameter 102 8 by pressing it is possible to scroll up down the parameter list see table above or by pressin...

Page 93: ...th another message 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 Example Error code 111 diagnostic code 0 To res...

Page 94: ...ght By pressinf or it is possible to scroll up down the parameter list 2 Once the last parameter is accessed 143 by pressing the End message will blink 3 Press InFo for more than three seconds or for more than three seconds orto return to the normal display Parameter Description 954 Flame intensity 121 output if set automatic operation 922 Actuators position 00 combustibile 01 aria 161 Lock outs n...

Page 95: ...eignition time OFF Ph44 t44 intervallo 1 t44 interval 1 Ph50 TSA2 secondo tempo sicurezza TSA2 2nd safety time Ph52 t52 intervallo 2 t52 interval 2 Ph60 Funzionamento 1 stazionario Operation 1 stationary Ph62 t62 massimo tempo bassa fiamma funzionamento 2 in preparazione per spegnimento verso bassa fiamma t62 max time low fire operation 2 preparing for shutdown traveling to low fire Ph70 t13 tempo...

Page 96: ...ress ENTER until the display will show with the button go to the group 000 of the parameters and press with the buttons and go to 050 parameter press the disply show press again with the button select 1 and start the backup process by pressing After about 5 seconds the backup process ends and the display shows It is recommended that you perform a backup procedure whenever you change the parameters...

Page 97: ... buttons by pressing enter to confirm iWith the buttons go to the group 000 of the parameters press end select the 050 parameter press the disply show with the button the display shows press again with the button select 1 and start the restore process by pressing After about 5 seconds the restore process ends and the display shows Now LMV has the same configuration that was stored on AZL2x To copy...

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Page 113: ... L PE QRB C N ION QRB C X75 1 X10 05 1 X10 06 1 X3 02 1 PLUFT FLAMME P L PE N L 2 3 L X5 03 1 X8 04 1 X8 02 1 X5 03 X10 05 X7 01 X8 04 X8 02 X75 X10 06 X3 02 X3 04 N PE L 1 1 1 1 1 1 1 1 1 QRA QRA QRA Electrical supply Safety loop Valve Valve Operation sgnal Reset Common Increase output Decrease input ON OFF thermosta Air pressure switch UV flame detector Flame sensors supply GNDflame sensors QRB ...

Page 114: ...66 Wiring variants for LMV27 2 Fuel meter input 1 Supply fuel meter ConnectorX75 ConnectorX5 02 ConnectionsPmax ...

Page 115: ...ation speed output 2 GND signal reference 1 Controller input 4 20mA 5 Supply 4 Feedback signal 3 PWM Pulse Width Modulation speed output 2 GND signal reference 1 External supply 24V DC ConnectorX75 ConnectorX64 ConnectorX74 2 Fuel meter input 1 Supply fuel meter ConnectorX08 04 X09 04 2 Fuel 0 1 Fuel1 ...

Page 116: ...odulation speed output 2 GND signal reference 1 Controller input 4 20mA 5 Supply ConnectorX75 ConnectorX64 ConnectorX74 2 Fuel meter input 1 Supply fuel meter ConnectorX5 02 Connections Pmax 4 Feedback signal 3 PWM Pulse Width Modulation speed output 2 GND signal reference 1 External supply 24V DC ...

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Page 120: ...d and data subject to change Errors and omissions excepted 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 ...

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Unigas K890A, Manual Of Installation - Use - Maintenance

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