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light oil dual fuel burners

1. 0 1 2 S 4 5 6 7 8 10 11 12 1 14 E SIGLA ITEM FUNZIONE FUNCTION O EV EVGI EVG2 O BERGER STA6B3 41 63N32L SERVOCOMANDO SERRANDA ARIA AIR DAMPER ACTUATOR Ben a vaio CM SELETTORE MANUALE COMBUSTIBILE 1 GAS 0 OFF 2 GASOLIO COMBUSTIBLE SELECTOR 1 GAS 0 OFF 2 LIGHT OIL 2 05 E SAA MONITOR DEVIC EV12 ELETTROVALVOLE GAS 0 GRUPPO VALV
2. 0 1 2 5 5 6 7 9 10 11 12 1 5 14 VER IONE ALIA SDAS mz MA AB Vase SEN CN LOL VERSO LI A Bazta z fo D FRONTALE QUADRO ema FRONT CONTROL PANEL lt vo amp 9 9 9 9 9 9 9 9 CM CM CM SIEMENS LGB2x 33 LMG2x 33 LME2x 33 SIEMENS AGQx 1 x x PE ala ala E 5 3 12 8 1 6 TI 9 SW RT BR BL sos moi Pr mi See aat ied 2000000 000 O B e LGB22 33 AGQ11A27 MALI isla E Pi LMG22 33 AGQ2 1A27 L e P E k x 233 AGG3 TAZ 1 1 e Silo Ss a cl m ml aje 5 2 A alal o 2 lt w CAVIERA a l II I 3 d als 11 1111 zs 3 8 s 85 8 e
3. 13 NOUN O E lei lie X Y XX 14 Connecting the light oil flexible NOSOS EE at n a l e n ak a 14 rO A A 16 ADJUSTMENT laici 16 Combustion head gas pressure curves depending on the flow rate 16 Measuring the gas pressure in the combustion head 16 Pressure in combustion head gas rate CUIVOS ricicla 17 17 VPS904 Gas proving 5 serios A 17 Adjustments brief description ERR 17 Adjustment procedure for light oil operation i 18 Adjustment procedure for gas operation iii 19 Calibration of air and gas pressure switches eiiis eiiis 21 CGANDIANGIKOF air PR SUT SWI NI 21 Calibration of minimum gas pressure switch ses essais anna 21 Adjusting the high gas p
4. 20 15 10 5 5 Rp 1 32 0 0 6 10 14 18 22 26 6 10 14 18 22 26 30 34 38 X O GAS PRESSURE IN THE NETWORK mbar Gas rate Stm h Gas rate Stm3 h CIB UNIGAS M03936CC MOUNTINGS AND CONNECTIONS Packing Burners are despatched in cardboard packages whose dimensions 980mm x 820mm x 580mm L x P x H Packing cases of this kind are affected by humidity and are not suitable for stacking The fol lowing are placed in each packing case 1 1 2 1 1 To get rid of the burner s packing follow the procedures laid down by current laws on disposal of burner with gas train detached gasket to be inserted between the burner and the boiler flexible oil pipes oil filter envelope containing this manual materials Fitting the burner to the boiler To install the burner into the boiler proceed as follows 1 2 3 CON OD 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 4 stud bolts 5 on the hole of the boiler s door according to the burner s drilling plate described on paragraph Overall dimensions fasten the 4 stud bolts place the gasket on the bur
5. 20 30 Double stage Gas light oil dual fuel burners MANUAL OF INSTALLATION USE MAINTENANCE CIB UNIGAS M03936CC TABLE OF CONTENTS WARNINGS 3 PARTTSINSEALLATION u u uu 5 GENERAL FEATURES k e d ai aji iodo resi 5 How to interpret the burner Performance 2 5 Matching the burner to the boiler siz ki es a A 6 BO 7 l 7 QU c 8 FENOMEN Y una PP 8 Pressure in the network gas rate CUIVES iii 8 MOUNTINGS ANB CONNEGTONS eo tie eo are 9 FA iaia 9 FIUNO tE OUT NEF DONET lead a 9 Gas eei uu ucuman odit re do ea es ei a ee vet nen ks e 10 gas laid 10 Hydraulic diagrams for light oil supplying circuits eiiis nn sena inis sa asas rsen aan sna an 12 Light oil piping installation diagrami H 13 Api MO use Ol Uel PUMPS RETE
6. SIEMENS LGB22 33 LMG22 33 LME22 33 631321 12 4 _ CA N N O CRI O 183 178 J e e O O K M bl br rt sw T Q AGQx 1A27 Fossa 1 6 LCB22 55 1 1 2 LMG22 55 AGQ2 1A27 3 LME22 33 AGQ3 1A27 VPS504 STA6B3 41 1 EVG2 250V ST TAB LB LS PG GRUPPO VALVOLE VALVE GROUP EVG1 PG NA NC Evi Eva e Iu H L L FOGLIO 4 DD SHEET OF R4 CODICE CODE REV GAS 04 559 AGQx 1A27 CM LEVG2 SQN30 STA6B ST TA VPS504 LEGENDA cod 04 559 REV 1 Apparecchio ausiliario per sonda UV Commutatore di funzionamento 0 spento 1 gas 2 gasolio Contatti rel ausiliari Elettrovalvola gas lato rete o gruppo valvole Elettrovalvola gas lato bruciatore o gruppo valvole Elettrovalvola gasolio 1 stadio Elettrovalvola gasolio 11 stage Fusibili Sonda UV Interruttore generale Fase Lampada segnalazione bruciatore in alta fiamma Lampada segnalazione blocco bruciatore Lampada segnalazione bruciatore in bassa fiamma Lampada segnalazione apertura elettrovalvola EV1 Lampada segnalazione apertura elettrovalvola EV2 Lampada segnalazione apertura elettrovalvola gasolio EVG1 Lampada segnalazione apertura elettrovalvola gasolio EVG2 Apparecchiatura SIEMENS controllo fiamma Lampada segnalazione bassa pressione gas in rete Lampada segnalazione perdite valvole gas Lampada segnalazione trasformatore di accensione
7. 50 Fuel temperature 0 60 C Maximum inlet pressure 2 bar Minimum inlet pressure 0 45 bar to avoid gasing Maximum Return pressure 2 bar 3600 pm Suntec AT2 65A 21208 Oil temperature 60 C max Inlet maximum pressure 2 bar Return maximum pressure 2 bar Inlet minimum pressure 0 45 bar to avoid gasing Rated speed 3600 rpm max 1 Low pressure setting 1 stage 2 Pressure gauge 3 Vacuum gauge 4 Lockout solenoid valve 4a High low pressure solenoid valve Nozzle High pressure setting 11 stage Suction Return with inserted by pass plug Y O VI Connecting the light oil flexible hoses To connect the flexible light oil hoses to the pump proceed as follows according to the pump provided 1 remove the closing nuts A and R on the inlet and return connections of the pump 2 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 Suntec AT2 65 CIB UNIGAS M03936CC Electrical connections 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 ATTENTION before executing the electrical connections pay attention to turn the plant s switch to OFF and be sure that the burner s main s
8. F3 MIN 6 3A T MAX 10A 250V ST TAB LB 2 Fig 14 Key IL Mains switch LB LB1 Burner lockout signalling lamp LFG Burner gas operation signalling lamp LFO Burner oil operation signalling lamp LSPG LSPG1 Gas leak on valves signalling lamp MA Burner power supply terminal board PS1 Lock out reset button ST Thermostats or pressure switches serie TAB High Low flame thermostat CIB UNIGAS M03936CC ADJUSTMENTS Combustion head gas pressure curves depending on the flow rate Curves are referred to pressure Ombar in the combustion head The curves referred to the gas pressure in the combustion head depending on the gas flow rate are referred to the burner properly adjusted 3 of residual O in the flues and CO in the standard limits During this stage the combustion head the gas butterfly valve and the servocontrol are at the maximum opening Refer to Fig 15 showing the correct way to measure the gas pressure considering the values of pressure in combustion chamber surveyed by means of the pressure gauge or taken from the boiler s Technical specifi cations Key 1 Boiler 2 Gas pressure outlet on the boiler 3 Gas pressure outlet on the butterfly valve 4 Differential pressure gauge Measuring the gas pressure in the combustion head In order to measure the pressure in the combustion head insert the pressure gauge probes one into the boiler s pressure outlet Fig 15 2 to get the pressure in the combustion chamber
9. oan ose soa ata am os as sas manos sm VO IO ma pn aon zo zre an os sue ss pose sss aan oos e pon so asa pron our oz s s s a osos nn oos po rao wc oon Tab 1 Danfoss Delavan nozzles 1 Once the air and gas flow rates are adjusted turn the burner off switch the CM switch to the heavy oil operation OIL on the bur ner control panel see page 22 2 startthe burner up by means of the thermostat series 3 bleed the air from the M pressure gauge port Fig 16 by loosing the cap without removing it then release the contactor Suntec AT2 4 always in the prepuring phase adjust the pump pressure value by means of the VR1 screw see picutre above according to the low flame rate requested i e 9 10bar do not set the pressure lower than 8bar Caution The nozzle flow rate at 8bar must be higher than the flow rate referred to the burner minimum output 5 after the ignition phase drive the burner to the high flame stage by means of the TAB thermostat the second stage si achieved high flame by means of the VR2 screw adjust the pump pressure according to the flow rate required in the high flame stage for example 24 25bar without exceeding 25bar 6 The MV cam nust set at least 5 higher than the low flame cam ST1 18 CIB UNIGAS M03936CC Berger STA6 B 3 41 Berger STA4 5BO 37 6 High flame set to 90 SI2 STO 1222 cere High flame set to 90 o Low lame andignito
10. nable flame shape appears Whenever the burner is used intensely we recommend preventively replacing the nozzle at the start of each heating season e Clean and grease sliding and rotating parts ATTENTION when servicing if it was necessary to disassemble the gas train parts remember to execute the gas proving test once the gas train is reassembled according to the procedure imposed by the law in force Light oil filter maintenance For correct and proper servicing proceed as follows 1 cutoff the required pipe section 2 unscrew the filter cup 3 remove the filtering cartridge wash it with gasoline if necessary replace it check the tightening O rings and replace them if necessary 4 replace the cup and restore the pipe line Removing the filter in the MULTIBLOC DUNGS MB DLE 405 412 e Check the filter at least once a year e Change the filter if the pressure difference between pressure connection 1 and 3 Fig 19 Fig 20 is Ap 10 mbar e Change the filter if the pressure difference between pressure connection 1 and 3 Fig 19 Fig 20 is twice as high compared to the last check You can change the filter without removing the fitting 1 Interrupt the gas supply closing the on off valve Remove screws 1 4 using the Allen key n 3 and remove filter cover 5 in Fig 21 Hemowve the filter 6 and replace with a new one Replace filter cover 5 and tighten screws 1 4 without using any force and fasten Perform lea
11. 15 5 9 3 3 9 0 lt D lt a 2 gt 2 Es 5 DIS o O 2 ses av sore C C NOTE ON THE WORKING SERVICE the control box automatically stops after 24h of continuous working The control box immediately starts up automatically All gas flow rates are referred to Stm h 1013 mbar absolute pressure 15 C temperature and are valid for G20 gas net calorific value 34 02 MJ Stm Maximum gas pressure 360mbar with Dungs MBDLE valves Minimum gas pressure see gas curves GAS COUNTRY CATEGORY AT ES GR SE FI IE HU IS NO CZ DK GB IT PT CY EE LV SI MT SK Ba LT RO TR CH ZISEBDBHEUBDBOSEBHBBBEBESSSER SBESBE nmBBBBBHSDBBBB BECEBBE EHBSBE es s ela pololo z ss ele m m CIB UNIGAS M03936CC Overall dimensions mm Performance Curves HP20 HP30 N wo O N 0 0 40 60 80 100 120 140 160 180 200 220 240 260 280 40 80 120 160 200 240 280 320 360 400 kW kW BACK PRESSURE IN COMBUSTION CHAMBER mbar To get the input in kcal h multiply value in kW by 860 Data are referred to standard conditions atmospheric pressure at 1013mbar ambient temperature at 15 Pressure in the network gas rate curves HP20 MQ 25 HP30 MG 25 32 15 25
12. Directive 2004 108 CEE on electromagnetic compatibility Harmonised standards UNI EN 676 Gas Burners CEl 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 Safety requirements National standards UNI 7824 Monobloc nebulizer burners for liquid fuels Characteristics and test methods CIB UNIGAS M03936CC GENERAL FEATURES This series represents monobloc gas burners made in die cast aluminium housing that can burn either gas or light oil thanks to the adjustable combustion head which allows a good performance with both fuels They can be provided in progressive or fully modulating version Fig 1 1 Actuator 2 Gas valve group 3 Control panel with startup switch 4 Electrical panel cover 5 Combustion head adjusting screw 6 Air pressure switch 7 Burner coverBlast tube Combustion head group 8 Flange 9 Blast tube Combustion head ass y 10 Light oil pump Gas operation the gas coming from the supply line passes through the valves group provided with filter and stabiliser This one for ces the pressure in the utilisation limits The actuator 1 moves the air damper and the gas butterfly valve to allow the optimisation of the gas flue values as to get an efficient combustion Light oil operation the fuel coming from the supply line is pushed by the pump 10 to the nozzle and the
13. Morsettiera di alimentazione bruciatore Morsettiera di collegamento componenti bruciatore Motore pompa Motore ventilatore Neutro Pressostato aria comburente Pressostato gas di minima pressione Pulsante di sblocco Rel ausiliario Termostato alta bassa fiamma dove previsto togliere il ponte tra i morsetti 6 e 7 nella morsettiera MA Servocomando SIEMENS o BERGER serranda aria Serie termostati o pressostati Trasformatore di accensione Apparecchiatura DUNGS controllo perdita valvole optional se previsto togliere il ponte tra i morsetti 177 e 178 nella morsettiera MC KEY cod 04 559 REV 1 AGQx 1A27 CM LEVG2 LGB LMG LME22 33 LPG LSPG SQN30 STA6B ST TA VPS504 terminals Auxiliary unit for UV probe Manual operation switch 0 off 1 gas 2 light oil Relay contacts Gas electro valve upstream or valve group Gas electro valve downstream or valve group Light oil electro valve 1 stage Light oil electro valve 11 stage Fuse UV flame detector Main switch Phase Burner in high flame indicator light Burner lockout indicator light Burner in low flame indicator light Indicator light for opening of electro valve Indicator light for opening of electro valve EV2 Indicator light for opening of electro valve EVG1 Indicator light for opening of electro valve EVG2 SIEMENS flame monitor device Indicator light for presence of gas in the network Indicator light for leakage of valves Ignition transform
14. WITH THE RESET BUTTON AND CONTACT QUALIFIED PER SONNEL WHO WILL PROCEED TO ELIMINATE THE MALFUNCTION WARNING DURING NORMAL OPERATION THE PARTS OF THE BURNER NEAREST TO THE GENERATOR COUPLING FLANGE CAN BECOME VERY HOT AVOID TOUCHING THEM SO AS NOT TO GET BURNT OPERATION ATTENTION before starting the burner up be sure that the manual cutoff valves are open and check that the pres sure upstream the gas train complies the value quoted on paragraph Technical specifications e Choose the typer of fuel by turning the A switch on the burner control panel CAUTION if the fuel chosen is light oil be sure the cutoff valves on the feed and return pipes are open e Check the control box is not locked signalling light O on if so reset it by means of the pushbutton C e Checkthe series of thermostats and pressure switches turn the burner to on Gas operation e Check the gas feeding pressure is sufficient signalling lamp G on Burners provided with gas proving system the gas proving system test begins when the test is performed the proving system LED turns on At the end of the test the burner staring cycle begins in case of leakage in a valve the gas proving system stops the burner and the lamp E turns on Reset it by means of the reset pushbutton on the device in burners with VPS504 pushbutton LB in picture or by the D pushbutton on the burner panel if this one is fitted with LDU11 proving system e Check the gas feed
15. a year have qualified personnel perform the following operations a set the burner fuel flow rate depending on the heat input of the appliance b setthe flow rate of the combustion supporting air to obtain a combu stion efficiency level at least equal to the lower level required by the regulations in force check the unit operation for proper combustion to avoid any harmful or polluting unburnt gases in excess of the limits permitted by the regulations in force make sure that control and safety devices are operating properly e make sure that exhaust ducts intended to discharge the products of combustion are operating properly on completion of setting and adjustment operations make sure that all mechanical locking devices of controls have been duly tightened g make sure that a copy of the burner use and maintenance instruc tions is available in the boiler room Incase of a burner shut down reser the control box by means of the RESET pushbutton If a second shut down takes place call the Technical Service without trying to RESET further e The unit shall be operated and serviced by qualified personnel only in compliance with the regulations in force 3 GENERAL INSTRUCTIONS DEPENDING ON FUEL USED 3a ELECTRICAL CONNECTION e For safety reasons the unit must be efficiently earthed and installed as required by current safety regulations e Itis vital that all saftey requirements are met In case of any doubt ask for a
16. operation turn slowly the adjusting ring nut VR in the clockwise direction to increase the adju sting pressure until the burner lockout then read the value on the pressure switch scale and set it to a value reduced by 15 e Repeat the ignition cycle of the burner and check it runs properly e Refitthe transparent plastic cover on the pressure switch Calibration of minimum gas pressure switch As for the gas pressure switch calibration proceed as follows e sure that the filter is clean e Remove the transparent plastic cap e While the burner is operating at the maximum output test the gas pressure on the pressure port of the minimum gas pressure switch e Slowly close the manual cutoff valve placed upstream the pressure switch see gas train installation diagram until the detected pressure is reduced by 50 Pay attention that the CO value in the flue gas does not increase if the CO values are higher than the limits laid down by law slowly open the cutoff valve as to get values lower than these limits Check that the burner is operating correctly Clockwise turn the pressure switch adjusting ring nut as to increase the pressure value until the burner stops Slowly fully open the manual cutoff valve Refit the transparent plastic cover on the pressure switch Adjusting the high gas pressure switch when provided To calibrate the high pressure switch proceed as follows 1 remove the plastic cover 2 measure the gas
17. rye v cc FRONTALE FQB FRONTALE FQA TA PGMAX APPARECCH A APPARECCH B EE EE FC FRONTALE FOB FRONTALE FQA TA PGMAX APPARECCH A APPARECCH B tal FC af rl of w 5 la TT f el ai un ban TAT pal aT anf xe I l l M S lt lt lt lt lt lt amp al die 213121516 s i RL RLI RL RL Mle ak X TES CIRCUITO STAMPATO L rene presen 1 PRINTED CIRCUIT BOARD l a lt Na a ls ex lol lt e MV CN2 PG EV VPS504 PA vC STA A F MV CN2 EV vo STA MINT INIM BM 434444 71 a ie 200 Z i Y X X 209000900 BARRA DI TERRA DE D DQO EN ts A Q EARTH TERMINAL MV MP EV1 2 poto eL 6 4 o METER EVG1 EVG2 PA BERGER STA6B3 41 63N32L TOSS Bodo SIEMENS SQN30 151 ST 255 Z a gt a MOTORE VENTILATORE MOTORE POMPA GASOLIO So FAN MOTOR LIGHT OIL PUMP MOTOR o x VPSSOA E OPTIONAL E Tes IG 5 CAMME SERVOCOMANDO CAMME SERVOCOMANDO ACTUA TOR CAMS ACTUA TOR CAMS STA6B3 41 63N32L SQN30 151A ST2 ALTA FIAMMA ALTA FIAMMA HIGH FLAME HIGH FLAME STO SOSTA Il SOSTA STAND BY STAND BY STI BASSA FIAMMA Ill BASSA FIAMMA LOW FLAME LOW FLAME MV APERTURA EVG2 APERTURA EVG2 OPEN EVG2 OPEN EVG2 PRE FOGLIO Data 24 09 2008 Revisione 00 SEGUE OTALE Dis N 16 162 2 2
18. than 3 seconds to activate the visual diagnostics Count the number of blinks of the red signsl lamp and check the fault condition on the Error code table the device repeats the blinks for regular intervals During diagnostics the control outputs are deactivated the burner remains shut down external fault indication is deactivated fault status is showed by the red LED inside the LME s lockout reset buttonaccording to the Error code table ERROR CODE TABLE The air pressure switch does not switch or remains in idle position LP is Loss of air pressure signal after t10 No establishment of flame at the end of TSA Faulty or soiled fuel valves Faulty or soiled flame detector Inadequate adjustement of burner no fuel Faulty ignition equipment LPis welded in normal position 4 blinks Extraneous light when burner starts up LP is working position 6binks fre 7 b i n ks kkkkkkk Loss of flame during operation Faulty or soiled fuel valves Faulty or soiled flame detector Inadequate adjustement of burner 8 9 blinks Faulty output contacts Wiring error Anomalous voltage on ouput terminals Other faults 14 blinks CPI contact not closed RESETTING THE BURNER CONTROL When lockout occurs the burner control can immediately be reset by pressing the lockout reset button for about 1 3 seconds The LME can only be reset when all con
19. the oil flow rate as to meet the flue gas temperature values reqested Consequently adjust the air always observing the combustion analysis Then go back to the gas operation and repeat only the gas adjustments because the air rate has already been set in the light oil operation always check the combustion values 10 Now adjust the pressure switches see next par 20 CIB UNIGAS M03936CC Adjusting the combsution head The burner is factory set with the head in its MAX position maximum output To let the burner operate at a lower output turn clockwise the VRT screw and move progressively the combustion head back towards the MIN position k VRT MAX head position MIN head position Attention if it is necessary to change the head position repeat the air and gas adjustments described above Calibration of 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 burner control panel The gas pressure switches check the pressure to avoid the burner operate when the pressure value VR is not in the requested pressure range Calibration of air pressure switch To calibrate the air pressure switch proceed as follows e Remove the transparent plastic cap e Once air and fuel setting have been accomplished startup the burner e During the pre purge phase o the
20. 2 Suction circuit Key Manual valve Light oil filter Light oil feeding pump One way valve S Flexible hoses Relief valve i OI Ww N E E E Eg L NOTE in plants where gravity or ring feed systems are provided install an automatic interception device see n 4 Fig 13 CIB UNIGAS M03936CC Installation diagram of light oil pipes A PLEASE READ CAREFULLY THE WARNINGS CHAPTER AT THE BEGINNING OF THIS MANUAL From tank gt Totank Fig 13 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 As far as the hoses connection see the related paragraph Key Only for installations with gravity siphon or for 1 Burner ced circulation feed systems If the device installed 2 Flexible hoses fitted is a solenoid valve a timer must be installed to 3 Light oil filter fitted Ad dab E 4 Automatic interceptor The direct connection of the device without a timer 5 One wayvaiveC may cause pump breaks 6 Gate valve 7 Quick closing gate valve outside the tank or boiler rooms The pumps that are used can be installed both into single pipe and double pipe systems Single pipe system a single pipe drives the oil from the tank to the pump s inlet Then from the pump the pressurised oil is driven to the nozzle a part comes out from the nozzle while the oth
21. 9 WIRING DIAGRAM G aaa lia 30 APPENDIX WARNINGS 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 THE USER WILL FIND FURTHER INFORMATION ABOUT OPERATING AND USE RESTRICTIONS IN THE SECOND SECTION OF THIS MANUAL WE HIGHLY RECOMMEND TO READ IT CAREFULLY KEEP THISMANUAL FOR FUTURE REFERENCE GENERAL INTRODUCTION The equipment must be installed in compliance with the regulations in force following the manufacturer s instructions by qualified per sonnel e Qualified personnel means those having technical knowledge in the field of components for civil or industrial heating systems sanitary hot water generation and particularly service centres authorised by the manufacturer e Improper installation may cause injury to people and animals or damage to property for which the manufacturer cannot be held lia ble e Remove all packaging material and inspect the equipment for inte grity In case of any doubt do not use the unit contact the supplier The packaging materials wooden crate nails fastening devices plastic bags foamed polystyrene etc should not be left within the reach of chil dren as they may prove harmful e Before any cleaning or servicing operation disconnect the unit from the mains by turning t
22. ASOLIO BURNER LIGHT OIL OPERATION INDICATOR LIGHT TE de doe cds 215 8 la HE LPGMIN LAMPADA SEGNALAZIONE PRESENZA GAS IN RETE DICATOR LIGHT FOR PRESENCE OF GAS IN THE NETWORK ATEI S NE LSPG LAMPADA SEGNALAZIONE BLOCCO CONTROLLO TENUTA VALVOLE DICATOR LIGHT FOR LEAKAGE OF VALVES 1 145 7 10 13 S Bg ab El LSPG1 LAMPADA SEGNALAZIONE BLOCCO CONTROLLO TENUTA VALVOLE DICATOR LIGHT FOR LEAKAGE OF VALVES j 2 NE 1 10 LTA LAMPADA SEGNALAZIONE TRASFORMATORE DI ACCENSIONE GNITION TRANSFORMER INDICATOR LIGHT QB q P OTORE POMPA GASOLIO LIGHT OIL PUMP MOTOR i 3 3 05615 OTORE VENTILATORE FAN MOTOR IE EA 3 615 112 PRESSOSTATO ARIA AIR PRESSURE SWITCH A 5 PGMAX PRESSOSTATO GAS DI MASSIMA PRESSIONE OPTIONAL AXIMUM PRESSURE GAS SWITCH OPTIONAL Dz allies ei eski Bs 7 PGMIN PRESSOSTATO GAS DI MINIMA PRESSIONE INIMUM GAS PRESSURE SWITCH Es ET PS PULSANTE SBLOCCO FIAMMA LOCK OUT RESET BUTTON PS PULSANTE SBLOCCO FIAMMA LOCK OUT RESET BUTTON COR o Pa O RL RELE AUSILIARIO AUXILIARY RELAY SIEMENS AGQx 1 ADATTATORE PER SONDA UV RILEVAZIONE FIAMMA ADAPTER FOR UV FLAME DETECTOR SIEMENS LGB2x LMG2x LME2x APPARECCHIATURA CONTROLLO FIAMMA CONTROL BOX SIEMENS SQN30 151 SERVOCOMANDO SERRANDA ARIA ALTERNATIVO AIR DAMPER ACTUATOR ALTERNATIVE ST SERIE TERMOSTATI PRESSOSTATI SERIES OF THERMOSTATS OR PRESSURE SWITCHES TA TRASFORMATORE DI ACCENSIONE IGNITION TRANSFORMER TAB TERMOSTATO PRESSOSTATO AL
23. NE I E Mona LP FS 2 Control sequence tw Waiting time t1 Purge time TSA Ignition safety time t3 Preignition time tn Postignition time t4 Interval between BV1 and BV2 LR t10 Specified time for air pressure signal t11 Programmed opening time for actuator SA t12 Programmed closing time for actuator SA LME11 connection diagram Fim uC control El E A gt lt uC control rr 19 91 19 O_O 31 ION BTE LP ME AL w GO E EK mA STB N e e e LME22 connection diagram Fim uC control 7 D__d_ amp Y_ _ _T_L_ _A1 ION LP Pal Ti Nur LME23 Connection diagram AL BV EK2 FS GP LP LR Error message alarm Fuel valve Hemote lockout reset button Flame signal Gas pressure switch Air pressure switch Load controller Fan motor Control thermostat pressurestat Safety limit thermostat Limit thermostat pressure switch Ignition transformer CONTROL PROGRAM IN THE EVENT OF FAULT e f a fault occurs all outputs will immediately be deactivated in less than 15 e After an interruption of power a restart will be made with the full pro gram sequence f the operating voltage dro
24. OLE GAS ELECTRO VALVES OR VALVES GROUP DA EVG1 ELETTROVALVOLA GASOLIO LIGHT OIL SOLENOID VALVE SETE A A 3TA 2 A4 B3 82 Bi EVG2 ELETTROVALVOLA GASOLIO LIGHT OIL SOLENOID VALVE 654 E15l4 A 83182181 F3 FUSIBILE DI LINEA LINE FUSE AG6 ASIAL IRE FC SONDA UV RILEVAZIONE FIAMMA UV FLAME DETECTOR 987 91817 PGMAX A6 4B5 B6 FUSIBILE DI LINEA LINE FUSE BL B5 B6 emo 12 G NTERRUTTORE GENERALE AINS SWITCH IA lg Ng LAF LAMPADA SEGNALAZIONE ALTA FIAMMA BRUCIATORE BURNER IN HIGH FLAME INDICATOR LIGHT 2 1 LB LAMPADA SEGNALAZIONE BLOCCO BRUCIATORE DICATOR LIGHT FOR BURNER LOCK OUT STA SQN OOO O TE LAMPADA SEGNALAZIONE BLOCCO BRUCIATORE DICATOR LIGHT FOR BURNER LOCK OU MV PG OO SE LBF LAMPADA SEGNALAZIONE BASSA FIAMMA BRUCIATORE BURNER IN LOW FLAME INDICATOR LIGHT D EN OO 0 LEVI LAMPADA SEGNALAZIONE APERTURA EVI DICATOR LIGHT FOR OPENING OF ELECTRO VALVE EVI E LA LEV2 LAMPADA SEGNALAZIONE APERTURA EV2 DICATOR LIGHT FOR OPENING OF ELECTRO VALVE EV2 C 2 2 VPS504 2 2 SE LEVGI LAMPADA SEGNALAZIONE APERTURA EVG1 DICATOR LIGHT FOR OPENING OF ELECTRO VALVE EVG1 3 a ad MD LEVG2 LAMPADA SEGNALAZIONE APERTURA EVG2 DICATOR LIGHT FOR OPENING OF ELECTRO VALVE EVG2 me 2 4516 AD LFG LAMPADA SEGNALAZIONE FUNZIONAMENTO BRUCIATORE A GAS BURNER GAS OPERATION INDICATOR LIGHT 115 1 CN LFO LAMPADA SEGNALAZIONE FUNZIONAMENTO BRUCIATORE A G
25. ON THROTTLE VALVE BAD SETTING DEFECTIVE GAS GOVERNOR DEFECTIVE HI LO FLAME THERMOSTAT ACTUATOR CAM BAD SETTING DETECTION ELECTRODE BAD POSITION OR DEFECTIVE DETECTION CIRCUIT REVERSED PHASE AND NEUTRAL CONNECTION 28 CIB UNIGAS M03936CC SPARE PARTS 0 SN ES GAS VALVE GROUP Fp Dungs M DLEMO EZRA gt GAS VALVE GROUP Rp1 1 4 Dungs MB DLE412 2190342 ACTUATOR BERGER STA6 UV PROBE MOTOR PUMP COUPLING O O OoOO o 294055 _ EXTENDED COMBUSTION HEAD 300960 EXTENDED BLASTTUBE EXTENDED IGNITION CABLE 608000 gt 29 CIB UNIGAS M03936CC WIRING DIAGRAMS Complete key AGQx 1A27 UV probe adapter CM Operation selector Off 1 Gas 2 Light oil EV1 Gas solenoid valve network side or valves group EV2 Gas solenoid valve burner side or valves group EVG1 Light oil solenoid valve 1st stage EVG2 Light oil solenoid valve 2nd stage F Fuses F3 FU1 Line fuses FC UV probe IG Main switch IL Auxiliaries main switch L Phase LAF High flame operation signaling lamp LB LB1 Burner lockout signaling lamp LBF Low flame operation signaling lamp LEV1 Opening of EV1 signaling lamp LEV2 Opening of EV2 signaling lamp LEVG Opening of EVG signaling lamp LFG Gas operation signaling lamp LFO Light oil operation signaling lamp LGB LMG LME 22 33 SIEMENS control box LPGMIN Low gas pressure
26. S ON THE BURNER MUST BE CARRIED OUT WITH THE MAINS DISCONNECTED AND THE FUEL MANAUL CUTOFF VALVES CLOSED ATTENTION READ CAREFULLY THE WARNINGS CHAPTER AT THE BEGINNIG OF THIS MANUAL ROUTINE MAINTENANCE e Check and clean the gas filter cartridge if necessary replace it see next paragraghs e Check and clean the fuel filter cartdrige replace if necessary e Check and clean the filter inside the light oil pump filter must be thoroughly cleaned at least once in a season to ensure correct working of the fuel unit To remove the filter unscrew the four screws on the cover When reassemble make sure that the filter is mounted with the feet toward the pump body If the gasket between cover and pump housing should be damaged it must be repla ced An external filter should always be installed in the suction line upstream of the fuel unit e Checkthe fuel hoses for possible leaks e Remove check and clean the combustion head see page 25 e Check ignition electrodes clean adjust and if necessary replace them see page 26 e Checkand carefully clean the UV detector replace it if necessary if in doubt check the detection current once the burner starts up see on page 27 e Remove and clean the fuel nozzle AN Important cleaning must be performed using solvent not metal tools At the end of maintenance operations after the burner reassembly light the flame and check its shape replacing the nozzle whenever a questio
27. TA BASSA FIAMMA HIGH LOW THERMOSTAT PRESSURE SWITCHES VPS504 CONTROLLO DI TENUTA VALVOLE GAS OPTIONAL GAS PROVING SYSTEM OPTIONAL Data 24 09 2008 sa Revisione 00 2 EGUE TOTALE Dis N 18 162 2 E xem Ex li gt gt j j a VERSIONE ALTA DASSA FIAMMA 7 PROGRESSIVO PRE LON RELE KAB DI SEZIONAMENTO PRO HIGH LUW PROGRESSIVE VERSION WITH KAB RELAY OF DISCUNNECTED lt a 8 SE PREVISTO TAB TOGLIERE IL PONTE TRA MORSETTI 6 7 IF TAB USED REMOVE THE BRIDGE BETWEEN TERMINALS 6 7 Data 26 06 2008 WA SEGUE TOTALE TAB 2 2 Data 26 06 2008 P SEGUE TOTALE Dis N TAB 2 SIEMENS LME11 21 22 CONTROL BOX The series of equipment LME is used for the starup and supervisione of 1 or 2 stage gas burners The series LME is interchangeable with the series LGB and LMG all diagrams and accessories are interchangea ble the main features are e Indications of error codes by a signalling multicolor LED in the lockout reset button e Programmer fix times for the digital management of signals Comparative table LGB Series LMG Series LME Series DEDE LMG 25 33 LME 11 33 LGB 21 33 LMG 21 33 LME 21 33 LGB 22 33 LMG 22 33 LME 22 33 Preconditions for burner startup Burner control must be reset All contacts in the line are closed request for heat No undervoltage Air pressure switch LP must be in its no load positio
28. and the other one into the butterfly valve s pressure outlet of the burner Fig 15 3 On the basis of the measured differential pressure it is possible to get the maximum flow rate in the pressure rate curves showed on the next paragraph it is easy to find out the burner s output in Stm3 h quoted on the x axis from the pressure measured in the combustion head quoted on the y axis The data obtained must be considered when adjusting the gas flow rate NOTE THE PRESSURE RATE CURVES ARE GIVEN AS INFORMATION ONLY FOR A PROPER SETTING OF THE GAS RATE PLEASE REFER TO THE GAS METER READING CIB UNIGAS M03936CC Pressure in combustion head gas rate curves HP20 HP30 9 8 8 7 8 6 E 6 LLI 5 OC 5 T 4 09 a 3 3 a a 2 lt 1 5 1 0 0 8 10 12 14 16 18 20 22 24 26 28 30 32 14 16 18 20 22 24 26 28 30 32 34 36 38 Gas rate Stm h Gas rate Stm h ATTENTION before starting the burner up be sure that the manual cutoff valves are open and check that the pres sure upstream the gas train complies the value quoted on paragraph Technical specifications Be sure that the mains switch is closed ATTENTION 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 gas decrease slowly until the nor
29. aning replacing the electrodes 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 clean replace the electrodes proceed as follows 1 remove the combustion head as described in the previous paragraph 2 remove the electrodes ass y and clean them 3 in order to replace the electrodes unscrew the VE fixing screws and remove them place the new electrodes being careful to observe the measures in the previous paragraph reassemble the electrodes and the combustion head following the reversed pro cedure 26 CIB UNIGAS M03936CC Cleaning and replacing the detection photocell The photocell working life is about 10000 working hours about 1 year at max 50 C after which it must be replaced To clean replace the detection photocell proceed as follows Disconnect the system from the electrical power supply Shut off the fuel supply remove the photocell from its slot see next figure clean the bulbe if dirty taking care not to touch it with bare hands if necessary replace the bulb replace the photocell into its slot O ON Checking the detection current To check the detection current follow the diagram on Den 46 If the signal is less than the value indicated check the position of the detection electrode or detector the electrical
30. ar electrical appliances Safety Part 1 General requirements EN 50165 Electrical equipment of non electric appliances for house hold and similar purposes Safety requirements National standards UNI 7824 Monobloc nebulizer burners for liquid fuels Characteristics and test methods Heavy oil burners European directives Directive 2006 95 EC on low voltage Directive 2004 108 CEE on electromagnetic compatibility Harmonised standards CEl EN 60335 1 Household and similar electrical appliances SafetyPart 1 General requirements EN 50165 Electrical equipment of non electric appliances for household and similar purposes Safety requirements National standards UNI 7824 Monobloc nebulizer burners for liquid fuels Characteristics and test methods Gas Light oil burners European directives Directive 90 396 CEE Gas Appliances Directive 2006 95 EC on low voltage Directive 2004 108 CEE on electromagnetic compatibility Harmonised standards UNI EN 676 Gas Burners CEl 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 Safety requirements National standards UNI 7824 Monobloc nebulizer burners for liquid fuels Characteristics and test methods Gas Heavy oil burners European directives Directive 90 396 CEE Gas Appliances Directive 2006 95 EC on low voltage
31. ase the burner must be coupled with boilers with a combustion chamber smaller in dia Key a Heat output in kW b Lenght of the flame tube in meters C d Flame tube firing intensity MW m Combustion chamber diameter m lt S s Fig 4 Firing intensity diameter and lenght of the test flame tube as a function of the heat input in KW CIB UNIGAS M03936CC Burner model identification Burners are identified by burner type and model Burner model identification is described as follows 20 Model 5 A 0 25 1 A 4 5 6 7 8 1 BURNER TYPE HP20 HP30 2 FUEL M Natural gas G Light oil 3 OPERATION Available versions AB Double stage 4 BLAST TUBE S Standard L Extended 5 DESTINATION COUNTRY see data plate 6 BURNER VERSION A Standard 7 EQUIPMENT 2 gas valves 1 22 gas valves gas proving system 8 GAS CONNECTION 25 Rpt 32 1 4 Specifications see next paragraph Gas rate min max min max Stm h 9 24 3 7 37 see Note 2 A eee RR SPE ARA A AAA A AA AKI ATA Valves size Gas connection MEER 1114 RPI ta 10 50 QIO Cio EEE ESE W o g 6 6 0 S 3 8 s lt 3 6 6 6 o S f 9 Q Q LA cin 515 ab o 5 5118 o 3 9 m ka 5 5 5 9 3 12 318 5 0 5 3 0 D D
32. ashing red Undervoltage Fault alarm Error code output refer to Error code table Color code START UP PROGRAM As far as the startup program see its time diagram A Start command switching on This command is triggered by control thermostat pressure controller R Terminal 12 receives voltage and the programming mechanism starts running On completion of waiting time tw with the LME21 or after air damper SA has reached the nominal load position on comple tion of t11 with the LME22 fan motor M will be started tw Waiting time During the waiting time air pressure monitor LP and flame relay FR are tested for correct contact positions t11 Programmed opening time for actuator SA Only with LME22 The air damper opens until the nominal load position is reached Only then will fan motor M be switched on t10 Specified time for air pressure signal On completion of this period of time the set air pressure must have built up or else lockout will occur t1 Prepurge time Purging the combustion chamber and the secondary heating surfaces required with low fire air volumes when using the LME21 and with nomi nal load air volumes when using the LME22 The diagrams show the so called prepurge time t1 during which air pressure monitor LP must indicate that the required air pressure is available The effective prepurge time t1 co
33. ce curve diagram Fig 2 draw a vertical line matching the furnace input value and an horizontal line matching the backpressure value The burner is suitable if the intersection point A is inside the performance curve CIB UNIGAS M03936CC Contropressione in camera di combustione mbar A no RAONO Campo di lavoro bruciatori 200 300 400 500 600 700 800 900 Potenza kW Fig 2 Data are referred to standard conditions atmospheric pressure at 1013mbar ambient temperature at 15 Checking the proper gas train size To check the proper gas train size it is necessary to know the available gas pressure value upstream the burner s gas valve Then subtract the backpressure The result is called pgas Draw a vertical line matching the furnace input value GOOKW in the example quoted on the x axis as far as intercepitng the network pressure curve according to the installed gas train DN65 in the example From the interception point draw an horizontal line as far as matching on the y axis the value of pressure necessary to get the requested furnace input This value must be lower or equal to the pgas value calculated before 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 meter or shorter than those described in the diagram plea
34. contacts and if necessary replace the electrode or the detector Keys C Electrolytic capacitor 100 470 uF DC 10 25 V M Microammeter Ri max 5000 ohm Control box Minimum detection signal UV detector 200pA with UV detector Red sw Black br Brown gr Grey bl Blue Seasonal stop To stop the burner in the seasonal stop proceed as follows 1 turn the burner s main switch to O Off position 2 disconnect the power mains 3 close the fuel valve in the supply line Burner disposal In case of disposal follow the instructions according to the laws in force in your country about the Disposal of materials 27 CIB UNIGAS M03936CC TROUBLESHOOTING CAUSE FAULT CONTINUE PRE PURGUE BURNER DOESN T START AND LOCKS BURNER DOESN T START AND REPEATS THE CYCLE BURNER STARTS AND REPEATS THE CYCLE BURNER DOESN T SWITCH TO HIGH FLAME BURNER S LOCKOUT DURING OPERATION BURNER STOPS AND REPEATS CYCLE DURING OPERATION BURNER S LOCKOUT AFTER START THE FLAME CONTROL DEV REPEATS THE CYCLE WITHOUT GIVE CONSENT MAIN SWITCH OPEN ABSENCE OF GAS MINIMUM GAS PRESSURE SWITCH FAULT OR BAD SETTING BOILER THERMOSTATS OPEN OVERLOAD TRIPPED INTERVENTION FUSES INTERVENTION AIR PRESSURE SWITCH FAULT OR BAD SETTING o O 0 O BURNER DOESNT START DEFECTIVE CONTROL BOX DEFECTIVE AIR DAMPER ACTUATOR DEFECTIVE IGNITION TRANSFORMER IGNITION ELECTRODE WRONG POSITI
35. ds which may deposit between the gear teeth thus obstructing them e After filing 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 e On initial commissioning a dry operation is foreseen for a considerable length of time for example when there is a long suction line to bleed To avoid damages inject some lubrication oil into the vacuum inlet e Care must be taken when installing the pump not to force the pump shaft along its axis or laterally to avoid excessive wear on the joint noise and overloading the gears e Pipes should not contain air pockets Rapid attachment joint should therefore be avoided and threaded or mechanical seal junc tions preferred Junction threads elbow joints and couplings should be sealed with removable sg component The number of junc tions should be kept to a minimum as they are a possible source of leakage e Donotuse 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 CIB UNIGAS M03936CC e An external filter should always be installed the suction line upstream of the fuel unit Light oil pumps Pump Suntec AS47 A Viscosty 25 12
36. e part goes back to the pump In this system the by pass pulg if provided must be removed and the optional return port on the pump s body must be sealed by steel plug and washer Double pipe system as for the single pipe system a pipe that connects the tank to the pump s inlet is used besides another pipe that connects the pum s return port to the tank as well The excess of oil goes back to the tank this installation can be considered self ble eding If provided the inside by pass plug must be installed to avoid air and fuel passing through the pump Burners come out from the factory provided for double stage systems They can be suited for single pipe system recommended in the case of gravity feed as decribed before To change from a 1 pipe system to a 2 pipe system insert the by pass plug G as for ccw rota tion referring to the pump shaft Caution Changing the direction of rotation all connections on top and side are reversed Bleed Bleeding in two pipe operation is automatic it is assured by a bleed flat on the piston In one pipe operation the plug of a pressure gauge port must be loosened until the air is evacuated from the system About the use of fuel pumps e Make sure that the by pass plug is not used in a single pipe installation because the fuel unit will not function properly and damage to the pump and burner motor could result e Do not use fuel with additives to avoid the possible formation over time of compoun
37. eement or otherwise for damages resulting from improper installation use and failure to comply with the instructions supplied by the manufacturer 2 SPECIAL INSTRUCTIONS FOR BURNERS e 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 Only burners designed according to the regulations in force should be used This burner should 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 stopped When the decision is made to discontinue the use of the burner the user shall have qualified personnel carry out the following operations a Remove the power supply by disconnecting the power cord from the mains b Disconnect the fuel supply by means of the hand operated shut off valve and remove the control handwheels from their spindles Special warnings e Make sure that the burner has on installation been firmly secured to the appliance so that the flame is generated inside the appliance firebox Before the burner is started and thereafter at least once
38. er indicator light Supply terminal block Terminal block for connection of burner components Pump motor Fan motor Neutral Combustion air pressure switch Low gas pressure switch Lockout reset button Auxiliary relay High low thermostat where supplied remove the bridge between terminal 6 and 7 in terminal block MA Servo control SIEMENS or BERGER air damper Series thermostats or pressure switches Ignition transformer DUNGS valve leakage monitor device where supplied remove the bridge between 177 and 178 in terminal block MC CAMME SERVOCOMANDO SIEMENS BERGER SERVO CONTROL CAMS SQN30 151 STA6B3 41 SIEMENS BERGER ST2 Alta fiamma SQN30 151 STA6B3 41 Il STO Sosta SI2 High flame Ill ST1 Bassa fiamma Il STO Start up V MV Apertura EVG2 Ill ST1 Low flame V MV Open EVG2 ATTENZIONE WARNING 1 Alimentazione elettrica 230V 50Hz 2N 2 Non invertire fase con neutro 3 Assicurare una buona messa a terra del bruciatore 1 Electrical supply 230V 50Hz 2N a c 2 Do not reverset phase with neutral 3 Ensure burner is properly earthed
39. he master switch OFF and or through the cut out devices that are provided e Make sure that inlet or exhaust grilles are unobstructed e Incase of breakdown and or defective unit operation disconnect the unit Make no attempt to repair the unit or take any direct action Contact qualified personnel only Units shall be repaired exclusively by a servicing centre duly authorised by the manufacturer with original spare parts Failure to comply with the above instructions is likely to impair the unit s safety To ensure equipment efficiency and proper operation it is essential that maintenance operations are performed by qualified personnel at regular intervals following the manufacturer s instructions e When a decision is made to discontinue the use of the equipment those parts likely to constitute sources of danger shall be made har mless e Incase the equipment is to be sold or transferred to another user or in case the original user should move and leave the unit behind make sure that these instructions accompany the equipment at all times so that they can be consulted by the new owner and or the installer e Forall the units that have been modified or have options fitted then original accessory equipment only shall be used This unit shall be employed exclusively for the use for which it is meant Any other use shall be considered as improper and there fore dangerous The manufacturer shall not be held liable by agr
40. in the network signaling lamp LS Burner in stop position STAND BY signaling lamp LSPG LSPG1 Gas valves leakage signaling lamp LTA Ignition transformer in operation signaling lamp MA Burner power supply terminal board MC Burner components terminal board MP Pump motor MV Fan motor N Neutral PA Air pressure switch PGMAX Maximum gas pressure switch optional if fitted remove the connection between terminals 156 e 158 in terminal board MC PGMIN Minimum gas pressure switch PS PS1 Lock out Reset button R1 RL1 Auxiliary relais SQN30 STA6B SIEMENS BERGER actuator ST Series of thermostats or pressure switches TA Ignition transformer TAB Hi Lo flame thermostat if fitted remove the connection between terminals 6 and 7 on terminal board MA VPS504 DUNGS gas proving system optional if fitted remove the connection between 177 and 178 on terminal board MC Terminals Q13 and Q14 are contacts of a limit switch that stops the burner if the set parameters overcome the fixed differential ACTUATOR CAMS DESCRIPTION High Flame IT Stand by and ignition Low Flame GAS Low Flame ATTENTION 1 Electrical supply 400V 50Hz 3N a c 2 Don t reverse phase with neutral 3 Ensure to the burner a proper hearthing WIRING DIAGRAM Cod 04 559 Rev 1 version without printed circuit board WIRING DIAGRAM Cod 18 162 Rev 0 version with printed circuit board 30 CA lb ETS ELENA TORTOSA e I
41. ing pressure is sufficient signalling lamp G on VPS504 NOTE if the burner is fitted with Dungs VPS504 the pre purgue phase starts once the gas proving system is successfully performed Since the pre purgue phase must be carried out with the maximum air rate the control box drives the actuator opening and when the maximum opening position is achieved the pre purge time counting starts e Atthe end of the pre purge time the actuator drives the complete closing ignition with gas position and as this is achieved the 22 CIB UNIGAS M03936CC ignition transformer is energised LED L is on Few seconds after the gas valves opening the transformer is de energised and lamp L turns off e The burner is now operating meanwhile the actuator goes to the high flame position and after some seconds the two stage ope ration begins the burner is driven automatically to high flame or low flame according to the plant requirements Operation in high or low flame is signalled by lamp N on the frontal panel Light oil operation e Be sure the manual fuel selector is in the OIL position e ning is reached e energised and light C turns to off e signalled by the A B lights turning on off on the control panel EVI PGMIN GAS Fig 18 Burner control panel Key A High flame mode indicating light B Low flame mode indicating light C Ignition transformer operation CM Main switch operation mode Gas Oil D Fan mot
42. kage and functional test Pmax 360 mbar W N 24 CIB UNIGAS M03936CC Fig 19 Gas filter maintenance ATTENTION Before opening the filter close the manual cutoff valve downstream the filter and bleed the gas check that inside the filter there is no pressurised gas To clean or remove the filter proceed as follows 1 2 3 4 remove the cap unscrewing the fixing screws A remove the filtering cartridge B clean it using water and soap blow it with compressed air or replace it if necessary replace the cartridge in its proper position taking care to place it inbetween the guides as not to hamper the cap replacement be sure to replace the Or ring into its place C and replace the cover fastening by the proper screws A Removing the combustion head O N Remove the top H Disconnect the electrode cables CE Remove the UV detector out of its housing disconnect electrode cables and the light oil flexible hoses 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 5 Clean the combustion head by means of a vacuum cleaner scrape off the scale by means of a metallic brush 25 CIB UNIGAS M03936CC Adjusting the electrodes position Adjust the electrodes position according to the quotes in mm showed on the next picture Fig 22 Cle
43. mal combustion values are achieved WARNING NEVER LOOSE THE SEALED SCREWS OTHERWISE THE DEVICE WARRANTY WILL BE IMMEDIA TELY INVALIDATE Gas Filter The gas filters remove the dust particles that are present in the gas and prevent the elemenis at risk e g burners counters and regu lators from becoming rapidly blocked The filter is normally installed upstream from all the control and on off devices VPS504 Gas proving system The VPS504 check the operation of the seal of the gas shut off valves This check is carried out as soon as the boiler thermostat gives a start signal to the burner creating by means of the diaphragm pump inside it a pressure in the test space of 20 mbar higher than the supply pressure When wishing to monitor the test install a pressure gauge ranged to that of the pressure supply point PA If the test cycle is satisfactory after a few seconds the con sent light LC yellow comes on In the opposite case the lockout light LB red comes on To restart it is necessary to reset the appliance by pressing the illuminated pushbutton LB Fig 15 A IMPORTANTI the combustion air excess must be adjusted according to the in the following chart Recommended combustion parameters Fuel Recommended o Recommended O gt Light oil 11 5 13 2 9 4 9 Adjustments brief description e Checkthat the combustion parameters are in the suggested limits e Check the flow rate measuring it o
44. mprises interval end tw through t3 t12 Programmed closing time for actuator SA Only with LME22 During t12 the air damper travels to the low fire position t3 Preignition time During t3 and up to the end of TSA flame relay FR is forced to close On completion of t3 the release of fuel is triggered at terminal 4 TSA Ignition safety time On completion of TSA a flame signal must be present at terminal 1 That flame signal must be continuously available until shutdown occurs or else flame relay FR will be deenergized resulting in lockout t4 Interval BV1 and BV2 LR Time between the end of TSA and the signal to the second fuel valve BV2 or to the load controller LR B B Interval for flame establishment C Burner operation position C D Burner operation heat production D Controlled by R shutdown The burner stops and the control device is ready for a new startup LME11 control sequence A B B C D SB R W GP 9 Do j C j AL pL 119 fo 1 1 7 BV1 Led aka o FS EK2 seri 8 iw tO tt to tan t LME21 control sequence SB R W GP BV1 MEE AA EEE _ jJ a LR BV2 LP FS 7101d05 0206 LME22 control sequence A B D SB R W GP AL Tr i gt pp nannan N p BV1 LR BV2 VEN
45. n Fan motor or AGK25 is closed Flame detector is darkened and there is no extraneous light Undervoltage Safety shutdown from the operating position takes place should mains voltage drop below about AC 175 V at UN AC 230 V Restart is initiated when mains voltage exceeds about AC 185 V at UN AC 230 V Controlled intermittent operation After no more than 24 hours of continuous operation the burner control will initiate automatic controlled shutdown followed by a restart Reversed polarity protection with ionization If the connections of live conductor terminal 12 and neutral conductor terminal 2 aremixed up the burner control will initiate lockout at the end of the safety time TSA Control sequence in the event of fault If lockout occurs the outputs for the fuel valves the burner motor and the ignition equipment will immediately be deactivated 1 second Operational status indication In normal operation the different operating states are showed by means of the multicolor LED inside the lockout reset button red LED yellow LED green LED Off Steady on LED During startup status indication takes place according to the table Waiting time tw other Off waiting states eOoOeoeoeoeoe Flashing yellow Ignition phase ignition controlled Green Operation flame ok O Operation flame not ok Flashing green Extraneous light on Color Yellow red Fl
46. n accurate inspection of electrics by qualified personnel since the manufacturer cannot be held liable for damages that may be caused by failure to correctly earth the equipment e Qualified personnel must inspect the system to make sure that it is adequate to take the maximum power used by the equipment shown on the equipment rating plate In particular make sure that the system cable cross section is adequate for the power absorbed by the unit e No adaptors multiple outlet sockets and or extension cables are per mitted to connect the unit to the electric mains omnipolar switch shall be provided for connection to mains as required by the current safety regulations e The use of any power operated component implies observance of a few basic rules for example do not touch the unit with wet or damp parts of the body and or with bare feet do not pull electric cables do not leave the equipment exposed to weather rain sun etc unless expressly required to do so do not allow children or inexperienced persons to use equipment e The unit input cable shall not be replaced by the user In case of damage to the cable switch off the unit and contact qualified personnel to replace When the unit is out of use for some time the electric switch supplying all the power driven components in the system i e pumps burner etc should be switched off 3b FIRING WITH GAS LIGHT OIL OR OTHER FUELS GENERAL e The b
47. n into the combustion cham ber where the mixture between fuel and air takes place and consequently the flame In the burners the mixture bertween fuel and air to perform clean and efficient combustion is activated by atomisation of oil into very small particles This process is achieved making pressurised oil passing through the nozzle The pump 10 main function is to transfer oil from the tank to the nozzle in the desired quantity and pressure To adjust this pressure pumps are provided with a pressure regulator 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 9 determines the energetic quality and the geometry of the flame Fuel and comburent are routed into separated ways as far as the zone of flame generation combustion chamber The control panel 3 placed on the burner front side shows each operating stage How to interpret the burner Performance curve To check if the burner is suitable for the boiler to which it must be installled the following parameters are needed e furnace input in kW or kcal h KW kcal h 860 e backpressure data are available on the boiler s ID plate or in the user s manual Example Furnace input 600kW Backpressure 4mbar In the Performan
48. n the counter or if it was not possible verifying the combustion head pressure by means of a dif ferential pressure gauge as described on par see Measuring the gas pressure in the combustion head on page 26 e Adjust the combustion values in the high flame stage e Set now the low flame output acting on the low flame microswitch of the actuator in order to avoid the low flame output increasing too much or that the flues temperature gets too low to cause condensation in the chimney Start with the adjustment in the light oil operation and then proceed with the gas flow rate adjustment 17 CIB UNIGAS M03936CC Adjustment procedure for light oil operation The light oil flow rate is set by choosing a nozzle that suits the boiler utilisation output and setting the delivery and return pressure values according to the ones quoted on the table below as far as reading the pressure values see next paragraphs Choice of the oil nozzle Single stage burners PUMP PRESSURE bar I n PTT TE ee aon aan lak var ka a om a DC EZ EQ GE GE UE E an sss sas soo sz ros roun on na scr sor san ros a za a DTE S D EIER GE DE E oam sos sa sir soon sz au KA se ur RE fonfon ss ea sna raso sar s r ora EE Co OR 629 as ea wa mun oos m CRCR was usn i m E Cm r rers em soos mas nis zm ois zar nus nere a an ors son
49. ner flange install the burner into the boiler fix the burner to the stud bolts by means of the fixing nuts according to the next picture After fitting the burner to the boiler ensure that the gap between the blast tube and the refractory lining is sealed with appropriate insulating material ceramic fibre cord or refractory cement Keys 1 Burner 2 Fixing nut 3 Washer 4 Sealing gasket 5 Stud bolt 7 Blast tube CIB UNIGAS M03936CC Gas train connections The next diagrams show the components of the gas train included in the delivery and which must be fitted by the installer The diagrams are in compliance with the current laws ATTENTION BEFORE EXECUTING THE CONNECTIONS TO THE GAS PIPE NETWORK BE SURE THAT THE MANUAL CUTOFF VALVES ARE CLOSED READ CAREFULLY THE WARNINGS CHAPTER AT THE BEGINNING OF THIS MANUAL Gas train 1 Gas train with valves group MB DLE with built in gas pressure governor VPS504 gas proving system MANUFACTURER INSTALLER 9 4 5 Key Burner 8 Manual cutoff valve Butterfly valve 9 MB DLE Valves group Gas proving system optional if output lt 1200 kW Maximum gas pressure switch optional Minimum gas pressure switch Gas filter Bellow joint Assembling the gas grain gas supply network direction arrows for installation Keys 1A 1E Gasket c 2 Gas filter 3 Gas valves group 4 Bellow joint 5 Manual cock Fig 5 Example of gas t
50. npostion Cam for light oil solenoid valve opening EVG2 jM Stand by position set to 0 7 To adjustthe air flow rate in the high flame stage loose the RA nut and screw VRA as to get the desired air flow rate moving the rod TR towards the air damper shaft the air damper opens and consequently the air flow rate increases moving it far from the shaft the air damper closes and the air flow rate decreases Caution once the procedure is perfomed be sure that the blocking nut RA is fasten Do not change the position of the air damper rods TR RA VRA 8 drive the burner to low flame by means of the TAB thermostat 9 always checking the combustion values adjust the low flame air flow rate by means of the actuator ST1 cam 10 Turn the burner off and go on with the gas operation adjustment Adjustment procedure for gas operation 1 Set GAS fuel by means of the burner CM switch it is placed on the burner control panel see page 22 Before starting the burner up set the slow opening To set the slow opening remove cover T reverse it upside down and use it as a tool to rotate screw VR Clockwise rotation reduces start flow rate anticlockwise rotation increases it Do not use a screwdriver on the screw VR Note the screw VSB must be removed only in case of replacemente of the coil 2 startthe burner up by means of the thermostat series 3 do not change the air flow rate adjustment set in the light oil operaion see pre
51. or therma cutout intervention E Burner lockout indicating light F Stand by mode indicating light G Gas valve EV1 operation H Gas valve EV2 operation Gas pressure switch enabling signal L Oil solenoid valve operation M Gas proving system intervention N Control box reset pushbutton O Gas proving system reset pushbutton P Modulator 23 The fan motor and the pump motor start and the pre purge phase begins The pre purge phase must take place with the maximum air flow rate that is why the control box enables the actuator opening the pre purge time counting starts when the maximum ope At the end of pre purge time the actuator moves to the ignition position for light oil and when the position is reache the ignition tra sformer is energised light C on see control panel below Few seconds after the oil valves opening the ignition transformer is de The burner lights and contemporarly the actuator drives to the high flame position few seconds later the double stage operation starts and the burner automatically sets to the high or low flame stage according to the plant reqests The high low flame stage is N 00 e e W CIB UNIGAS M03936CC 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 WARNING ALL OPERATION
52. pressure in the network when flame is off 3 by means of the adjusting ring nut VR set the value read on step 2 increased by the 30 4 replace the plastic cover 21 CIB UNIGAS M03936CC LIMITATIONS OF USE THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY CON NECTED TO A HEAT GENERATOR E G BOILER HOT AIR GENERATOR FURNACE ETC ANY OTHER USE IS TO BE CONSI DERED IMPROPER AND THEREFORE DANGEROUS THE USER MUST GUARANTEE THE CORRECT FITTING OF THE APPLIANCE ENTRUSTING THE INSTALLATION OF IT TO QUALIFIED PERSONNEL AND HAVING THE FIRST COMMISSIONING OF IT CARRIED OUT BY A SERVICE CENTRE AUTHORI SED BY THE COMPANY MANUFACTURING THE BURNER A FUNDAMENTAL FACTOR IN THIS RESPECT IS THE ELECTRICAL CONNECTION TO THE GENERATOR S CONTROL AND SAFETY UNITS CONTROL THERMOSTAT SAFETY ETC WHICH GUARANTEES CORRECT AND SAFE FUNCTIONING OF THE BURNER THEREFORE ANY OPERATION OF THE APPLIANCE MUST BE PREVENTED WHICH DEPARTS FROM THE INSTALLATION OPERATIONS OR WHICH HAPPENS AFTER TOTAL OR PARTIAL TAMPERING WITH THESE E G DISCONNECTION EVEN PARTIAL OF THE ELECTRICAL LEADS OPENING THE GENERATOR DOOR DISMANTLING OF PART OF THE BURNER NEVER OPEN OR DISMANTLE ANY COMPONENT OF THE MACHINE OPERATE ONLY THE MAIN SWITCH WHICH THROUGH ITS EASY ACCESSIBILITY AND RAPIDITY OF OPERATION ALSO FUNCTIONS AS AN EMERGENCY SWITCH AND ON THE RESET BUTTON IN THE EVENT OF REPEATED LOCKOUTS DO NOT PERSIST
53. ps below the undervoltage thresold a safety shutdown is performed e If the operating voltage exceeds the undervoltage thresold a restart will be performed O n case of extraneous light during t1 a lockout occurs n case of extraneous light during tw there is a prevention of startup and a lockout after 30 seconds e n case of no flame at the end of TSA there will be max repetitions of the startup cycle followed by a lockout at the end of TSA for mod LME11 directly a lockout at the end of TSA for LME21 22 models e ForLME11 model if a loss of flame occurs during operation in case of an establishment of flame at the end of TSA there will be max 3 repeti tions otherwise a lockout will occur e ForLME21 22 models if a loss of flame occurs during operation there will be a lockout e lf the contact of air pressure monitor LP is in working position a pre vention of startup and lockout after 65 seconds will occur Ilf the contact of air pressure monitor LP is in normal position a lockout occurs at the end of t10 e f no air pressure signal is present after completion of t1 a lockout will occur CONTROL BOX LOCKED In the event of lockout the LME remains locked and the red signal lamp LED will light up The burner control can immediately be reset This state is also mantained in the case fo mains failure DIAGNOSITICS OF THE CASUE OF FAULT e Press the lockout reset button for more
54. r supply flow required by the current regulations and in any case are sufficient for proper combustion Do not use gas pipes to earth electrical equipment Never leave the burner connected when not in use Always shut the gas valve off in case of prolonged absence of the user the main gas delivery valve to the burner should be shut off Precautions if you can smell gas a do not operate electric switches the telephone or any other item likely to generate sparks b immediately open doors and windows to create an air flow to purge the room C close the gas valves contact qualified personnel Do not obstruct the ventilation openings of the room where gas appliances are installed to avoid dangerous conditions such as the development of toxic or explosive mixtures o DIRECTIVES AND STANDARDS Gas burners European directives Directive 90 396 CEE Gas Appliances Directive 2006 95 EC on low voltage Directive 2004 108 CEE on electromagnetic compatibility Harmonised standards 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 house hold and similar purposes Safety requirements Light oil burners European directives Directive 2006 95 EC on low voltage Directive 2004 108 CEE on electromagnetic compatibility Harmonised standards CEl EN 60335 1 Household and simil
55. rain To mount the gas train proceed as follows 1 in case of threaded joints use proper seals according to the gas used 1 b in case of flanged joints place a gasket no 1A 1E Fig 5 between the elements NOTE the bellow joint the manual cock and the gaskets are not part of the standard supply ATTENTION once the gas train is mounted according to the diagram on Fig 5 the gas proving test mus be performed according to the procedure set by the laws in force The procedure of installation of the gas valves is showed in the next paragraph threaded gas trains with Multibloc Dungs MB DLE CIB UNIGAS M03936CC MULTIBLOC DUNGS MB DLE 405 412 Mounting 1 Mount flange onto tube lines use appropriate sealing agent see Fig 8 2 insert MB DLE note position of O rings see Fig 8 3 tighten screws A B C and D Fig 6 Fig 7 accordind to the mounting positions Fig 9 4 after installation perform leakage and functional test 5 disassembly in reverse order MOUNTING POSITIONS ER t mieu Fig 8 Fig 9 ATTENTION once the gas train is mounted according to the diagram on Fig 5 the gas proving test mus be performed according to the procedure set by the laws in force 11 CIB UNIGAS M03936CC Hydraulic diagrams for light oil supplying circuits Fig 10 Gravity circuit Fig 11 Ring circuit LI ES Fig 1
56. ressure switch when provided sna ann nenas 21 PART Ile OPERA TON EKES 22 OPERATION ilaele 22 Gas OD RD E E 22 ON FA NOUN u uu ana it U oes 23 PARTILMAINIENANCE 24 ROVINE MANTIENANCE 0 OEO 24 bilans M T m 24 Removing the filter in the MULTIBLOC DUNGS MB DLE 405 412 24 CANE o AAT 25 Removing 196 COMDUSHOR 25 AVUSINONS POSION u uuu HR 26 Cleaning and replacing the detection photocell iii 27 GHECHINO AE delector ELC ANE ae 27 Seasonal stop ciclici aiar 27 BUNEF OD C 27 TROUBLEESHAOOTING E 28 RARE s IM 2
57. se contact the supplier to verify that a correct matching is possible with res pect of the application involved To correctly match the burner to the boiler verify the necessary input and the pressure in combustion chamber are included in the burner performance curve otherwise the choice of the burner must be revised consulting the burner manu facturer To choose the blast tube 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 100 mm into the combustion chamber Pressurised boilers with flame reversal in this case the blast tube must penetrate at least 50 100 mm into combustion chamber in respect to the tube bundle plate e The length of the blast tubes does not always allow this requirement to be met and thus it may be necessary to use a suitably sized spacer to move the burner backwards or to design a blast tube tha suites the utilisation please contact the manifacturer b 2 0 TATTO 2 El A T a o td 0 2 AMAMI a LI ti I fi 2L 40 70100 190 a Fig 4 80 1200 2450 Minima pressione gas in rete Minimum inlet gas pressure mbar Tina Tune PAN I B 100 200 300 400 500 600 700 800 900 Potenza Output kW Fig 3 In c
58. tacts in the line are closed and when there is no undervoltage LIMITATION OF REPETITIONS only for LME11 model If no flame is established at the end of TSA or if the flame is lost during operation a maximum of 3 repetitions per controller startup can be perfor med via R otherwise lockout will be initiated Counting of repetitions is restarted each time a controlled startup via R takes place TECHNICAL CHARACTERISTICS 120V AC 10 15 230V AC 10 15 Mains voltage Frequency 50 60 HZ 6 Power consumption 12VA External primary fuse max 10 A slow input current at terminal 12 max 5 A Thermostats cable length max m Index of protection Operating conditions Storage conditions Weight IP40 to be ensured during mounting 20 60 C lt 95 UR 20 60 C lt 95 UR approx 160 g 55 EFNIGAS Via L Galvani 9 35011 Campodarsego PD ITALY Tel 39 049 9200944 Fax 39 049 9200945 9201269 Internet www cibunigas it E mail cibunigas cibunigas it Note specifications and data subject to change Errors and omissions exceptd
59. urner shall be installed by qualified personnel and in com pliance with regulations and provisions in force wrong installation can cause injuries to people and animals or damage to property for which the manufacturer cannot be held liable e Before installation it is recommended that all the fuel supply system pipes be carefully cleaned inside to remove foreign matter that might impair the burner operation e Before the burner is commissioned qualified personnel should ins pect the following a the fuel supply system for proper sealing b the fuel flow rate to make sure that it has been set based on the firing rate required of the burner C the burner firing system to make sure that it is supplied for the desi gned fuel type d the fuel supply pressure to make sure that it is included in the range shown on the rating plate e the fuel supply system to make sure that the system dimensions are adequate to the burner firing rate and that the system is equipped with all the safety and control devices required by the regulations in force e When the burner is to remain idle for some time the fuel supply tap or taps should be closed SPECIAL INSTRUCTIONS FOR USING GAS Have qualified personnel inspect the installation to ensure that a the gas delivery line and train are in compliance with the regulations and provisions in force all gas connections are tight the boiler room ventilation openings are such that they ensure the ai
60. vious paragraph 4 drive the burner to high flame by means fo the TAB thermostat 5 acting on the pressure stabiliser of the valves group adjust the gas flow rate in the high flame stage as to meet the values requested by the boiler utilisation the pressure governor is adjusted by operating the screw VS located under the cover C By screwing down the pressure is increased and by unscrewing it is reduced The valve is adjusted by means of the RP regulator after 19 CIB UNIGAS M03936CC slackening the locking screw VB by a number of turns By unscrewing the regulator RP the valve opens screwing the valve closes C VS T VR VSB Fig 17 Dungs Multibloc MB DLE 6 Once the gas rate is adjusted at the maximum output stage adjust the minimum output point low flame drive the burner to low flame by means fo the TAB thermostat 8 In order to adjust the gas flow rate slacken the nuts DB see picture below and adjust the opening angle of the gas throttle valve by rotating the rod TG clockwise rotation increases gas flow anticlockwise rotation decreases it The slot on the throttle valve shaft shows the opening degree of the valve with respect of the horizontal axis see picture below N Gas throttle valve open Gas throttle valve closed N B At the end of settings make sure the fastening nuts DB are fully tightened 9 Inthe case that the flue gas temperature is not the one required go back to the light oil operation and adjust
61. witch is in 0 position OFF too Read carefully the chapter WARNINGS and the Electrical connections section WARNING The burner is provided with a jumper between terminals 6 and 7 in the event of connecting the high low flame thermostat remove this jumper before connecting the thermostat IMPORTANT while connecting electric supply wires to burner s teminal block be sure that ground wire should be longer than phase and neutral ones To execute the electrical connections proceed as follows 1 remove the cover from the electrical board unscrewing the fixing screws 2 execute the electrical connections to the supply terminal board as shown in the following diagrams 3 check the direction of the motor see next pargraph 4 refitthe panel cover As far as connections refer to the terminal block showed below 1 Connect the signal conductors from the boiler to the burner as for the next elements see pictures ST thermostat pressure switch series TAB High low flame thermostat 2 Connectthe signal conductors from the burner to the boiler as for the next elements see pictures LB Burner s lockout signalling LED LSPG Gas proving system lockout signalling LED Burners with no printed circuit board Burners with printed circuit board SIE NL L 3 Lh 5 6 8 9 82 10 3 N G9 T un A j gt w LB1 LSPG1 LFG LFO PS1

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