RG1025 RG1030 RG1040 - Arzatoare CIB Unigas
Contents
1. XI XII V VIV II X Vil V N bl a b b al b alelb b EK1 E I z i A BR Al 321 2 15 16 1817 19 9 2671110 8 1 3 j SA AL a T gt EK2 Gir Byv2y N aes 7153a07 0496 43 Sequence diagram Key 11 t2 13 t3n t4 t5 t6 t7 t8 t10 t11 t12 t13 t16 t20 Control output at terminal A B C t6 D t11 t1 112 m a AAA 402 t 4 s Z 19 E T a 10 00 M 2 t3 am c t3 n XC CN V a k 9 fe SX b mum 11 He s X CA VI 20 VII s 8 t20 P 17 VIII as un 7 E 1 1 SQ X 18 gt LIII XII E oO X 3 X s RR t102. ATTENTION the and moving operations must be carried out b specialised and trained personnel If these operations are not carried out perfectly there is the residual risk of the burner to overturn and fall down As for moving the burner use means suited for the weight to sustain see paragraph Technical specifications The burner is provided with eyebolts for handling operations The burner is designed to work positioned according to the picture below For different installations please contact the Technical Department SIDE UP Matching the burner to the boiler The burners described in this manual have been tested with combustion chambers that comply with EN676 regulation and whose dimensions are described in the diagram In case the burner must be coupled with boilers with a combustion chamber smaller in dia meter or shorter than those described in the diagram please contact the supplier to verify that a correct matching is possible with respect of the application involved To correctly match the burner to the boiler verify the necessary input and the pressure in combu stion chamber are included in the burner performance curve otherwise the choice of the burner must be revised consulting the burner manufacturer To choose the blast tube lenght follow the instructions of the boiler manufacturer In absence of these consider the fol lowing e Cast iron boilers three pass flue boilers with the first pas
3. ro oO E Wt WES WES 7 Lu E Z O 2 lt 0 2 25 22 00 O5 a X A ec 2c DF DEQ 5 209 zur m en lt gt LL NZ A m H 05 9 ONT cna OO gt gt lt DEus IU lt Te I maj EO E m EO 0 FOO gt AF lt gt Z FSO MAIN SWITCH OPEN e LINE FUSE INTERVENTION e MAX PRESSURE SWITCH FAULT e FAN THERMAL CUTOUT INTERVENTION e AUXILIARY RELAIS FUSES INTERVENTION e CONTROL BOX FAULT e e SERVOCONTROL FAULT SMOKEY FLAME IGNITION TRANSFORMER FAULT IGNITION ELECTRODE DIRTY OR BADLY POSITIONED DIRTY NOZZLE FUEL SOLENOID VALVE DEFECTIVE PHOTORESISTOR DIRTY OR DEFECTIVE HI LO FLAME THERMOSTAT DEFECTIVE WRONG POSITION OF SERVOCONTROL CAMS FUEL PRESSURE TOO LOW DIRTY FUEL FILTERS e 33 1 UNIGAS M039144CD SPARE PARTS Desription RG1025 RG1030 RG1040 CONTROL BOX mod SIEMENS LAL2 25 2020420 2020420 2020420 IGNITION ELECTRODE 2080254 2080254 2080258 LIGHT OIL FILTER 2090018 2090018 2090018 GAS FILTER 2090101 2090101 2090101 FAN WHEEL 2150063 2150058 2150058 PILOT GAS PRESSURE SWITCH 2160086 2160086 2160086 AIR PRESSURE SWITCH 2160097 2160097 2160097 IGNITION TRANSFORMER 2170301 2170301
4. 3 startup cycle begins with the pre purge phase the fan motor starts and the pilot burner ignition trasformer turns 4 end of the pre purge phase the fuel solenoid valve opens and the burner starts few seconds later the ignition transformer and the pilot burner switch off 5 Meanwhile the air damper starts to open and few seconds later the servocontrol switches to high flame lights A and B on or remains in low flame light B on and light A off according to the needs of the plant Burner control panel O B A STAND BY O 6100819 EVP1 2 DIESEL A POWER qp 9 C Fig 22 Burner switch B Burner lockout signaling light Control box release pushbutton E Automatic Manual operation switch only for fully modulating models EVG Fuel solenoid valve EVS Solenoid valve EVG operation signaling light High flame operation signaling light Low flame operation signaling light Ignition transformer operation signaling light Overload tripped intervention signaling light Srand by signalling lamp Siemens RWF40 00 burner modulator fully modulating burners only UOZ 10 28 C I B UNIGAS M039144CD 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
5. Overall dimensions place the ceramic fibre plait on the burner flange install the burner into the boiler fix the burner to the stud bolts by means of the fixing nuts according to the picture below 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 Mo gt o Keys 1 Burner 2 Fixing nut 3 Washer 4 Ceramic fibre plait 5 Stud bolt 7 Blast tube Pilot gas train MANUFACTURER INSTALLER Key Burner Gas valves Minimum gas pressure switch Gas pressure governor with filter Bellow joint Manual cutoff valve 10 C I B UNIGAS M039144CD The pilot gas train is already installed into the burner the connection from the filter with stabiliser to the gas supply network must be carried out connection to tne gas supply networ Once the gas train in installed execute the electrical connections for all its items gas valves group pressure switch ATTENTION once the gas train is mounted according to the diagram on Fig 4 the gas proving test mus be performed according to the procedure set by the laws in force 11 C I B UNIGAS M039144CD 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
6. 1 UNIGAS M039144CD Adjusting the combustion head To let the burner operate at a lower output loose the VB screw and move progressively back the combustion head towards the MIN position by turning clockwise the VRT ring nut Fasten VB screw when the adjustment is accomplished VRT VB MAX head position head position Calibration of air pressure switch To calibrate the air pressure switch proceed as follows e Remove the transparent plastic cap e Once air and gas setting have been accomplished startup the burner e During the pre purge phase o the operation turn slowly the adjusting ring nut VR in the clockwise direction 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 Hefit the transparent plastic cover on the pressure switch 26 1 UNIGAS M039144CD LIMITATIONS OF USE THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY CONNEC TED TO A HEAT GENERATOR E G BOILER HOT AIR GENERATOR FURNACE ETC ANY OTHER USE IS TO BE CONSIDE RED IMPROPER AND THEREFORE DANGEROUS 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 FAC
7. ELECTRICAL WIRING DIAGRAM See the attached wiring diagrams SE12 144 fully modulating burners SE12 133 progressive burners ATTENTION 1 Electric supply 400V 50Hz a c 2 Don t reverse phase and neutral 3 Make sure that the burner is properly hearted 34 SIEMENS LAL CONTROL BOX FOR OIL BURNERS Use Control and supervision of oil atomization burners For burners of medium to high capacity For intermittent operation at least one controlled shutdown every 24 hours e Universally applicable for multistage or modulating burners Housing and plug in base Made of impact proof and heat resistance black plastic Lockout reset button with viewing window located behind it Lockout warning lamp Lockout indicator coupled to the spindle of the sequence switch and visible in the transparent lockout reset button uses easy to remember symbols to indicate the type of fault and the point in time lockout occurred Base and plug in section of the LAL are designed such that only burner controls of the LAL family can be plugged in 24 connection terminals Auxiliary terminals 31 and 32 3 earth terminals terminating in a lug for earthing the burner 3 neutral conductor terminals prewired to terminal 2 14 knockout holes for cable entry by means of cable glands 8 at the side 6 in the bottom of the base 6 lateral threaded knockout holes for cable entry glands Pg11 or M20 Operation Flame detect
8. 2170301 PUMP MOTOR 2180283 2180283 2180283 FAN MOTOR 2180289 2180291 2180292 3 WAYS SOLENOID VALVE mod SIRAI 2190437 2190437 2190437 LIGHT OIL SOLENOID VALVE mod PARKER 2190750 2190750 2190750 GAS SOLENOID VALVE mod BRAHMA EG R12 2190502 2190502 2190502 FLEXIBLE HOSES L 1500 1 M x 1 F 2340004 2340004 2340004 FLEXIBLE HOSES L 800 1 2 M x 1 2 F 2340027 2340027 FLEXIBLE HOSES L 600 3 8 2340049 FLEXIBLE HOSES L 385 3 8 2340088 2340088 FLEXIBLE HOSES L 485 3 8 2340089 2340089 2340089 GAS FLEXIBLE HOSES 1 2 M 234FX07 234FX07 234FX07 FLEXIBLE HOSES L 347 1 2 F x 1 2 F 234FX24 ADJUSTING CAM FOIL 2440013 2440054 2440054 ACTUATOR SIEMENS SQM10 2480004 2480004 2480004 ACTUATOR SIEMENS SQM40 24800A5 24800A5 24800A5 PHOTORESISTOR 2510003 2510003 2510003 MOTOR PUMP PLASTIC COUPLING 2540133 2540133 2540133 PRESSURE REGULATOR 2570006 2570008 25700E6 PRESSURE REGULATOR TV40 2570036 2570036 2570036 MODULATOR ONLY FOR FULLY MODULATING BURNERS 2570112 2570112 2570112 PUMP 2590148 2590148 2590148 NOZZLE specify angle and rate when ordering mod FLUIDICS 2610203 2610203 2610203 COMPLETE OIL GUN 2700351 2700351 2700351 L P G REDUCTION 2800125 2800125 2800125 GAS GOVERNOR WITH FILTER 2800085 2800085 2800085 COMBUSTION HEAD 3060165 30601A5 3060101 BLAST TUBE 30910T9 30910T7 30910U6 BLAST TUBE 30910M4 30910L5 30910U7 IGNITION CABLE 6050143 6050143 6050143 NOTE it is recommended to mention the burner ID number on the spare parts request form
9. Crs ON Scorer 5 5 LECCE amp H4 H H HH ERA ee 30 spy eee e CEE EERE 14 M NR BREE CCE EEE en 0 0 1 3456763 0 m 13 1 15 16 17 19 19 20 27 22 23 24 25 Pression retour kg R cklaufdruck in kg tM Fig 17 20 1 UNIGAS M039144CD Urar biii Charles S A Moutier suisse QS Gicleurs amp ot D bit Son m rf Viscosit 2 Pression T 4000 3500 2000 2500 E Um eo E HH 1400 NM ERRERA T ERE 78 4 98 initiale 25atm aim S E ai konstani T 1200 o ES 225888388 se 700 H 2 500 St tT tt EEE 500 H HHH HHH e Er di TES TREE ue m E 260 _ F LH FH E j i 140 120 x x 9 ELLA EA LT 3 P4 me IB HS AN EXE I TS 2 LILLLILLL 101 qp 50 EIS E e 1 0777575775 E 7 8 9 0n 9 x 15 mn 77 i 20 21 22 23 24 25 DEA Rucklaufdruck in em Fig 18 21 1 UNIGAS M039144CD ADJUSTMENTS Adjustments brief description ATTENTION before starting the burner up be sure that the manual cutoff valves are open Be sure that the mains switch 15 closed Before starting up the burner make sure that the retur
10. Lo k lt Ro ly as Un o pa 0 12 13 15 16 17 18 19 2021 22 Pression retour kg Rucklaufdruck in kg 5 Fig 15 000 6 4 7 IRC 1 UNIGAS M039144CD Charles Bergonzo S A Moutier suisse e 4000 3500 Gicleurs D bit kg Viscosit D E Pression 25atm Leistung kg h Viscositat konstant 25 atu ti ot tt 0 SHES 0 345 6 78 3 X 7 D 5 k 5 16 192021 DEB 26 Pression retour kg cm gt R cklaufdruck im kg Fig 16 8 100 4 7 IRC 1 UNIGAS M039144CD Charles Bergonzo S A Moutier suisse D bit ASQ kg fh Viscosit 2 E Pression initiale 25atm_ D e Lerstuag kg EE konstant 25 atu oe HHHH T LI i B 555 2500 EAR HH 2000 ES Pett l1 1l LL n HHHH Ea 9 571 313 er 6 f n 5 5 0 1 o 1 10 EEE pru I Fe
11. questio nable flame shape appears Whenever the burner is used intensely we recommend preventively replacing the nozzle at the start of each heating season e Checkthe detection current Fig 26 e Clean and grease levers and rotating parts Maintenance of the pressure governor with filter for ignitor gas train Before disassmbling the device be sure that there is no pressurised gas inside it To check the filtering part 1 on threaded bodies see picture e remove the bottom cover unscrewing the fixing screws e remove the filtering part 1 clean it with water and soap blow it with compressed air or replace it if necessary e reassemble the filtering part in its initial position checking that it is placed in its own slots see picture e reassemble the bottom cover 3 being sure that the main bolt is centered in the bottom cover slot filter slots 29 C I B UNIGAS M039144CD Light oil filter maintenance For correct and proper servicing proceed as follows 1 shut off fuel in the line section being serviced 2 unscrew the tray remove the filter cartridge from its support and wash it with petrol or replace if necessary check seal O Ring replace if necessary 4 reassemble the tray and restore fuel flow Removing the combustion head 1 Remove the top cover C 2 remove the photoresistor from its seat 3 unscrew the revolving connectors E in Fig 23 on the fuel pipes use 2 spanners to avoid looseni
12. 0 5500 6500 7500 8500 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 O kW kW RG1040 BACK PRESSURE IN CCOMBUSTION CHAMBER mbar 5 0 4 2000 3000 4000 5000 6000 7000 8000 9000 10000 1000 12000 13000 kW iTo 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 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 adj suting the combustion head to its MAX position see paragraph Adjusting the combustion head the minimum output point is rea ched setting the combustion head to its MIN position During the first ignition the combustion head is set in order to find a compromise between the burner output and the generator specifications that is why the minimum output may be different from the Per formance curve minimum Overall dimensions Burners flange and boiler recommended drilling template 5 A L AA AB AC AD AE B S B L CC RR UU RG1025 1896 2090 377 1452 651 25 585 350 544 641 1546 680 1502 680 822 3 0 410 660 816 M16 651 460 460 265 142 1146 3
13. 79 330 RG1030 1914 2108 377 1452 651 25 585 350 544 657 1564 680 1502 680 822 422 472 660 816 16 651 460 460 265 142 1146 379 330 RG1040 1961 2155 377 1452 651 25 585 386 580 657 1575 680 1502 680 822 671 731 660 816 16 651 460 460 265 142 1146 412 330 5 measure referred to burner provided with standard blast tube L measure referred to burner provided with extended blast tube Fit a counterflange between burner and boiler GOFFL6E0W SV9INn C I B UNIGAS M039144CD MOUNTING AND CONNECTIONS AN ATTENTION READ CAREFULLY THE WARNINGS2 CHATPER AT THE BEGINNIG OF THIS MANUAL Packing The burners are despatched in wooden cages whose dimensions are 2270 x 1720 x 1360mm L x P x H Packing cases of this kind are affected by humidity and are not suitable for stacking In each packing case you will find H e burner e flexible hoses e light oil filter e ceramic fibre plait to be inserted between the burner and the boiler e envelope containing this manual To get rid of the burner s packing and in the event of scrapping of the latter follow the procedures laid down by current laws on disposal of materials Handling the burner yebolts
14. Prepurge time with air damper fully open The correct functioning of the flame supervision circuit is checked during t1 The burner control will initiate lockout if correct functioning is not ensu red With LAL2 Shortly after the beginning of t1 the air pressure switch must change over from terminal 13 to terminal 14 otherwise the burner control will ini tiate lockout start of the air pressure check t3 Short preignition time Z must be connected to terminal 16 release of fuel via terminal 18 42 13 Long preignition time Z connected to terminal 15 t3n X Postignition time Z must be connected to terminal 15 With short preignition Z remains on until TSA has elapsed connec tion to terminal 16 14 Interval 1 BV2 or BV1 LR On completion of 14 vol tage is present at terminal 19 The voltage is required to power BV2 connected to auxiliary switch v in the actuator t5 Interval On completion of t5 terminal 20 receives power At the same time control outputs 9 to 11 and input 8 are galvanically separated from the LAL s control section LAL is now protected against reverse voltages from the load control circuit With the release of LR at terminal 20 the startup sequence of the LAL ends After a few idle steps steps with no contact position changes the sequence switch switches itself off B Operating position of the burner B C Burner operat
15. TOR 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 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 RESET FURTHER 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 27 1 UNIGAS M039144CD OPERATION ATTENTION before starting the burner up be sure that the manual cutoff valves Check that the mains switch is closed 1 Check that the burner is not in shutdown condition light on if so release by pressing the reset button on the burner control panel 2 sure that the set of thermostats or pressure switches sends the signal to the burner to operate
16. 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 switch is in 0 position OFF too Read carefully the chapter WARNINGS and the Electrical connections section WARNING The burner is provided with an electrical bridge between terminals 6 and 7 when connecting the high low flame thermostat remove this bridge before connecting the thermostat IMPORTANT Connecting electrical supply wires to the burner teminal block MA be sure that the ground wire is longer than phase and neutral ones To connect the burner please refer to the wiring diagram 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 attached wiring diagrams 3 check the direction of the fan motor and pump motor see next pargraph 4 refitthe panel cover CAUTION adjust the thermal cut out according to the motor rated current value Rotation of fan motor and pump motor Once the burner s electrical connection is accomplished remember to check the rotation of the fan and pump motors The motor should rotate in counterclockwise direction looking at motor s cooling fan In case of incorrect rotation reverse the three phase supply and c
17. directives Directive 2006 95 EC on low voltage Directive 2004 108 EC on electromagnetic compatibility Harmonised standards 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 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 EC on electromagnetic compatibility Harmonised standards CEI 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 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 CEI EN 60335 1 Household and similar electrical appliances Safety Part 1 General requirements EN 50165 Electrical equipment of non electric appliances for household and similar purposes Safety requirements National standards UNI 7824 Monobloc nebulizer burners for liquid f
18. e Flow rate Example as for over 100kg h nozzles the 80 of the nozzle flow rate can be obtained with a return pressure at about 18bar see Fig 14 17 1 UNIGAS M039144CD BERGONZO NOZZLES N 6 00 6 71 iRC Charles Bergonzo S A Moutier Suisse e Debit kg fh Viscosit 2 E Pression initiale 25atm D se Leistung Kg Oel Viscositat E Vorlaufdeuck konstant 25 atu 000 3500 ENRE BAE nnn BSERMENENMEN 800 j H tH INI 1200 Ed noi dodo d LI 1000 H NENNEN LLL LLL LLLA Wu 900 LLL LLL LL Ld opm odi s00 EASIER LLLI LEER ae 1 Lu asd rer oh NNMEWNNNTARRENEN Zen d oda qo Ta 11 ee m n Ed d ee TITT 0 5 Rees SEE ttle oot tt tit Try ye ee EEE EEE EEC EEE 140 m 120 ellc ITI JL xg sut I 80 LEID l s pill xc om de 2s EE m ME 35 PELIS 25 LL WE HEN pp dENERENERNNNENEMNENXEMNMENMX 12 x BEECH 2 do
19. e The burner is suitable if the intersection point A is inside the performance curve Campo di lavoro bruciatori 8 7 S 6 Ps e625 c eo 95 o gt 2 ao o 9 1 5 0 1 100 200 300 400 500 600 700 800 900 Potenza kW Fig 2 Data are referred to standard conditions atmospheric pressure at 1013mbar ambient temperature at 15 C Burner model identification Burners are identified by burner type and model Burner model identification is described as follows Type RG1025 G PR S 1 2 3 4 5 6 1 BURNER TYPE FUEL PR Progressive 3 OPERATION Available versions MD Fully modulating 4 BLAST TUBE S Standard 6 BURNER VERSION A Standard Y Special 1 UNIGAS M039144CD Specifications _ __ _ Storage Temperature 20 60 NOTE Choosing the nozzle for light oil consider Hi equal to 42 7 MJ kg NOTE ON THE BURNER WORKING SERVICE for safety reasons one controlled shutdown must be performed after 24 hours of countinous operation Performance curves RG1025 RG1030 8 30 30 Zi YS so o 20 0 I A O Y z A 10 10 H lt _ t eo 0 0 O 2500 3500 450
20. e 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 othe 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 13 C I B UNIGAS M039144CD tion referring to the pump shaft Caution Changing the direction of rotation all connections on top and side are reversed pipeline length in meters Suntec T Bleed Bleeding in two pipe operation is automatic it is assured 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 fue
21. every 6 months WARNING ALL OPERATIONS 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 Check and clean the fuel filter cartdrige replace if necessary Check and clean the pilot gas filter cartdrige replace if necessary Inspection and cleaning of 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 replaced An external filter should always be installed in the suction line upstream of the fuel unit Check the fuel hoses for possible leaks e Dismantle clean and check the combustion head see Fig 23 e Check and clean the ignition electrode on the pilot burner adjustment if necessary replacement Fig 25 e Checkand clean the detection photoresistor adjustment and if necessary replacement page 32 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
22. fficiently earthed and installed as required by current safety regulations is vital that all saftey requirements are met In case of any doubt ask for an 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 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 No adaptors multiple outlet sockets and or extension cables are per mitted to connect the unit to the electric mains An omnipolar switch shall be provided for connection to mains as required by the current safety regulations 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 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 t
23. he desired low flame point The low flame position must never match the ignition position that is why cam must be set 20 30 more than the ignition posi tion cam IV stroke limitation cam must be set a little higher than the cam III to limit the output in the first seconds the flame appears NOTE cam IV must shift according to cam Turn the burner off then start it up again If the adjustment is not correct repeat the previous steps Replace the actuator and control panel covers Now adjust the air pressure switch see next parargaph As far as fully modulating burners see paragraph below Fully modulating burners To adjust the fully modulating burners use the CMF switch on the burner control panel see next picture instead of the TAB thermo stat as described on the previous paragraphs about the progressive burners Go on adjusting the burner as described before paying attention to use the CMF switch intead of TAB The CMF position sets the oprating stages to drive the burner to the high flame stage set CMF 1 to drive it to the low flame stage set CMF 2 To move the adjusting cam set CMF 1 or 2 and then CMF 0 CMF 0 stop at the current position 1 high flame operation 2 low flame operation automatic operation CMF 25
24. he 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 The burner 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 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 Before the burner is commissioned qualified personnel should inspect the following a fuel supply system for proper sealing b 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 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 a
25. heck again the rotation of the motor Installation diagram of light oil pipes A PLEASE READ CAREFULLY THE WARNINGS CHAPTER AT THE BEGINNING OF THIS MANUAL From tank Totank Fig 5 Double pipe system The burner is supplied with filter and flexible hoses all the parts upstream the filter and downstream the return flexible hose must be installed by the customer As far as the hoses connection see the related paragraph Key Only for installations with gravity siphon or forced 1 Burner circulation feed systems If the device installed is a 2 Flexible hoses fitted solenoid valve a timer must be installed to delay the 3 Light oil filter fitted idi did 4 Automatic interceptor E the device without a timer 5 One way valve 6 Gate valve 7 Quick closing gate valve outside the tank or boiler rooms 12 1 UNIGAS M039144CD Hydraulic diagrams for light oil supplying circuits Fig 6 Gravity circuit D Fig 7 Ring circuit k HH LH Fig 8 Suction circuit Key Manual valve Light oil filter Light oil feeding pump One way valve A i Flexible hoses Relief valve wn NOTE in plants where gravity or ring feed systems are provided install an automatic interception device see n 4 Fig 5 Pump operating principle The pumps that are used can be installed both into single pipe and double pipe systems Singl
26. ins RG1025 RG1030 RG1040 Light oil burners MANUAL OF INSTALLATION USE MAINTENANCE DIB UNIGAS BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES 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 THIS MANUAL 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 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 Improper installation may cause injury to people and animals 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 lef
27. ion during burner operation LR drives the air damper to the nominal load or low fire position depending on heat demand the release of the nominal load takes place via auxiliary switch v in the actuator and in the event of loss of flame during operation the LAL will initiate lockout For automatic start repetition the clearly mar ked wire link B on the plugin section of the LAL must be cut away C Controlled shutdown in the case of controlled shutdown BV will immediately be closed At the same time the sequence switch is star ted to program t6 C D Sequence switch travels to start position A t6 Postpurge time fan M2 connected to terminal 7 Shortly after the start of t6 terminal 10 receives power and the air damper is driven to the MIN position Full closing of the air damper starts only shortly before t6 has elapsed initiated by the control signal at terminal 11 During the following burner off time terminal 11 is live t13 Permissible afterburn time during t13 the flame signal input may still receive a flame signal D A End of control program start position As soon as the sequence switch has reached the start position having thereby switched itself off the flame detector and flame simulation test will start again During burner off times the flame supervision circuit is live Lockout and indication of the stop position Whenever a fault occurs the sequence switch sto
28. irmly secured to the appliance so that the flame is generated inside the appliance firebox Before the burner is started and thereafter at least once 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 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 For safety reasons the unit must be e
29. l 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 compounds which may deposit between the gear teeth thus obstructing them e 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 e 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 jun ctions preferred Junction threads elbow joints and couplings should be sealed with removable sg component The number of jun ctions should be kept to a minimum as they are a possible source of leakage e Donot use PTFE tape on the suction and return line pipes to avoid the possibility that particles enter circulation These could depo sit on the pump filter or the nozzle reducing efficiency Al
30. limits e Then adjust the combustion values corresponding to the points between maximum and minimum set the foil shape of the adju sting cam The adjusting cam sets the air fuel ratio in those points regulating the opening closing of the fuel governor 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 22 1 UNIGAS M039144CD 1 Turn the burner on by means of its main switch A if the burner locks LED B on in the control panel press the RESET button on the control panel see next picture see chapter OPERATION on page 28 EVP1 2 O RESET gt ay POWER 2 check the fan motor rotation see paragraph Fan motor and Pump motor rotation 3 prime the oil pump acting directly on the related CP contactor see next picture check the pump motor rotation and keep pressing for some seconds until the oil circuit is charged 4 bleed the air from the M pressure gauge port Fig 19 by loosing the cap without removing it then release the contactor and srew the cap again Fig 19 5 Before starting the burner up drive the high flame actuator microswitch matching the low flame one in order to let the burner ope rates at the lowest out
31. mission into the combustion chamber The fuel flow rate that is not burnt goes back to the tank through the return circuit The spill back nozzle is feeded at constant pressure while the return line pressure is adjusted by means of the pressure governor controlled by an actuator coupled to an adjusting cam The fuel amount to be burnt is adjusted by means of the burner actuator according to the adjustments set See prevoius paragraph Fig 10 Stand by Fig 11 Prepurge Fig 12 Low flame Fig 13 High flame Key Oil pump Oil solenoid valve Nozzle Adjusting cam Pressure gauge Pressure governor 16 Light oil nozzles 1 UNIGAS M039144CD The fuel rate is adjusted by choosing a properly dimensioned nozzle spill back type and adjusting the inlet and return pressure fol lowing the directions showed in the next table NOZZLE HIGH FLAME LOW FLAME SUPPLY PRESSURE RETURN PRESSURE RETURN PRESSURE bar bar bar NOZZLE 18 21 recommended 7 recommended FLUIDICS NOZZLES Tab 1 Fig 14 Press all ugello Press all ugello 25 bar 357 psi 50 70 90 Pressure at nozzle 25bar Pressure at nozzle 357psi 25 Angolo di polverizzazione Atomisation angle 300 psi 20 Pressione al ritorno Pressione al ritorno Pressure on return Pressure on return 200 psi 100 psi 20 40 60 80 100 Portata Flow rate Atomisation angle according to the return pressur
32. mun c e 5 c XIV 00 Lo 18 _ Lockout position indication Prepurge time with air damper fully open Safety time Preignition time short Z connected to terminal 16 Preignition time long Z connected to terminal 15 Postignition time Z connected to terminal 15 Interval between voltage at terminals 18 and 19 BV1 BV2 Interval between voltage at terminals 19 and 20 BV2 load controller Postpurge time with M2 Interval between start command and voltage at terminal 7 start delay time for M2 Duration of startup sequence excluding t11 and t12 Interval from startup to the beginning of the air pressure check Air damper running time to the OPEN position Air damper running time to the low fire position MIN Permissible afterburn time Interval to the OPEN command for the air damper For self shutdown of the sequence switch 44 NIGMS CIE UNIGAS C I B UNIGAS S p A Via L Galvani 9 35011 Campodarsego PD ITALY Tel 39 049 9200944 Fax 39 049 9200945 9201 269 web site www cibunigas it e mail cibunigas cibunigas it Note Specifications and and data subject to change Errors and omissions excepted
33. n 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 11 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 In the double stage burners the electric servocontrol 12 that moves the air damper allows the optimisation of the gas flue values as to get an efficient combustion The position of the combustion head determines the burner s output The air comburent and fuel light oil are forced into the combustion chamber as to let the flame light up 1 UNIGAS M039144CD How to interpret the burner s 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 4 In the Performance curve diagram Fig 2 draw a vertical line matching the furnace input value and an horizontal line matching the backpressure valu
34. n pipe to the tank is not obstructed Any obstruction would cause the pump seal to break 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 fuel decrease slowly until the normal combustion values are achieved AN IMPORTANT the combustion air excess must be adjusted according to the in the following chart Recommended combustion parameters Recommended CO Recommended Light oil 11 5 13 2 9 4 9 Adjusting the pilot gas flow rate gas valve Brahma EG12xR and pressure stabiliser To change the pilot gas valve flow rate proceed as follows 1 remove the protection on the bottom of the valve moving it counterclockwise see next picture 2 rotate clockwise the nut 1 as shown in to close the valve or counterclockwise to open To perform a finest adjustment act directly on the pressure stabiliser as follows see next picture 3 remove the cap T to increase the gas pressure at the outlet use a screwdriver on the screw TR as shown in picture Screw to increase the pressure unscrew to decrease once the regulation is performed replace cap T Brahma gas valve EGR 12 Pressure governor Adjust the air and fuel flow rates at the maximum output high flame first by means of the air damper and the adjusting cam respec tively e Checkthat the combustion parameters are in the suggested
35. ng the connections attached to the distributor block 4 loosen the screw VRT to free the threaded rod AR then screw out the 2 screws V holding the washer R and the screw VRT in posi tion 5 remove the whole assembly as shown in Fig 23 6 Clean the combustion head by means of the vacuum cleaner scrape the scale off by means of a metallic brush To replace the combustion head reverse the procedure described above AR 30 1 UNIGAS M039144CD Removing the oil gun remove the combustion head as described on the previous paragraph slacken the screw VB remove the gun with the nozzle holder to rreassemble follow the procedure above in the reversed order AA ON Fig 24 Electrode and nozzle position setting ATTENTION avoid the ignition and detection electrodes to contact metallic parts blast tube head etc otherwise the boi lers operation would be compromised Check the electrodes position after any intervention on the combustion head To guarantee a good ignition the masures below in mm must be observed Fig 25 A 8 mm B 3 mm C 8 mm Fig 25 31 1 UNIGAS M039144CD Replacing the ignition electrode ATTENTION avoid the ignition and detection electrodes to contact metallic parts blast tube head etc otherwise the boi ler s operation would be compromised Check the electrodes position after any intervention on the combustion head To replace the ignition elect
36. or and flame simulation test are made automatically during burner off times and the prepurge time t1 If loss of flame occurs during operation the burner control will initiate lockout If automatic repetition of the startup sequence is required the clearly marked wire link on the plug in section of the LAL must be cut away Pre conditions for burner startup Burner control is not in the lockout position Sequence switch is in its start position with LAL2 voltage is present at terminals 11 and 12 Air damper is closed end switch z for the CLOSED position must feed power from terminal 11 to terminals Contact of the limit thermostat or pressure switch W and the con tacts of any other switching devices in the control loop between termi nals 4 and 5 must be closed e g a control contact for the oil preheater s temperature Normally closed contact of the air pressure switch must be closed Startup sequence Start command by R closes the start control loop between terminals 4 and 5 e The sequence switch starts to run e Only prepurging fan motor at terminal 6 receives power e Pre and postpurging fan motor or flue gas fan at terminal 7 receives power on completion of t7 On completion of t16 the control command for opening the air dam per is delivered via terminal 9 Terminal 8 receives no power during the positioning time The sequence switch continues to run only after the air damper has fully closed
37. ps and with it the lockout indicator The symbol appearing above the reading mark indicates the type of fault lt q One of the contacts is not closed also refer to Precondi tions for burner startup Extraneous light Lockout during or after completion of the control program Examples nonextinguished flame leaking fuel valves faulty flame super vision circuit Interruption of startup No OPEN signal at terminal 8 from the chan geover end switch a Terminals 6 7 and 15 are live until fault has been corrected P Lockout No air pressure indication at the beginning of the air pres sure check Air pressure failure after the air pressure check BE Defect in the flame supervision circuit Interruption of the startup sequence No positioning signal at termi nal 8 from the auxiliary switch m for the low fire position Terminals 6 7 and 15 are live until fault has been corrected 1 Lockout No flame signal at the end of the safety time Flame signa has been lost during operation A Consenso all avviamento ad esempio tramite il termostato o il pressostato H dell impianto B Operating position of the burner B C Burner operation during burner operation LR drives the air damper to the nominal load or low fire position depending on heat demand the release of the nominal load takes place via auxiliary switch v in the actuator and in the event of loss of flame during operation the LAL will initia
38. put to achieve safely the high flame stage 6 start the burner up by means of the thermostat series and wait until the pre purge time comes to an end and that the bruner starts up 7 drive the burner to high flame stage by means fo the thermostat TAB high low flame thermostat see wiring diagrams as far as fully modulating burners see related paragraph 8 Then move progressively the microswitch to higher values until it reaches the high flame position always check the combustion values and eventually adjusting the oil pressure see next step 23 1 UNIGAS M039144CD Actuator cams High flame Stand by and Ignition Low IV Stroke limitation siemens SQM10 Siemens SQM40 9 the nozzle supply pressureis already factory set and must not be changed Only if necessary adjust the supply pressure as fol lows see related paragraph insert a pressure gauge into the port shown on Fig 20 and act on on the pump adjusting screw VR see Fig 19 and page 15 as to get the nozzle pressure at 25bar see page 17 Pressure gauge port Fig 20 10 in order to get the maximum oil flow rate adjust the pressure reading its value on the PG pressure gauge checking always the combu stion parameters the adjustment is to be performed by means of the SV adjusting cam screw see picture when the cam has reached the high flame position 11 To adjust the air flow rate in the high flame stage loose the RA nut and
39. r 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 agreement 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 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 Make sure that the burner has on installation been f
40. re 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 air 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 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 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
41. rode proceed as follows 1 remove the burner cover disconnect the electrode cable remove the combustion head see par Removing the combustion head loosen the screw that fastens the ignition electrode to the burner ignitor remove the electrode and replace it referring to the measures shown on Fig 25 0O gt 0 N Cleaning and replacing the detection photoresistor To clean replace the detection photoresistor proceed as follows 1 Disconnect the system from the electrical power supply Shut off the fuel supply remove the photoresistor from its slot if necessary replace the photocell with a new one replace the photoresistor into its slot nm Checking the detection current To measure the detection signal follow the diagram in figure If the signal is not in the advised range verify the electrical contacts the cleaning of the combustion head the position of the photoresistor and if necessary replace it MC TERMINAL BLOCK Fig 26 Control box Minumum detection signal Siemens LAL 8apA 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 cock of 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 32 C I B UNIGAS M039144CD TROUBLESHOOTING oo u
42. s in the rear part the blast tube must protrude no more than 100 mm into the combustion chamber e 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 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 C I B UNIGAS M039144CD spacer to move the burner backwards or to design a blast tube tha suites the utilisation please contact the manifacturer 2 0 Key Soe ERE a Heat output kW a HARE a rt Length of the flame tube in meters Tes Flame tube firing intensity in MW m 8 2 0 d Combustion chamber diameter m D Fig 4 Firing intensity diameter and lenght of the test flame tube as a function of the heat input in kW E LEGE cams p LI 0 1 12 24 40 70100 190 80 1200 2450 Fig 3 Fitting the burner to the boiler To perform the installation proceed as follows 1 drill the furnace plateas decribed in paragraph Overall dimensions 2 place the burner towards the furnace plate lift and move the burner by means of its eyebolts placed on the top side see Lifting and moving the burner screw the stud bolts 5 in the plate holes according to the burner s drilling plate described on paragraph
43. 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 Note once the procedure is perfomed be sure that the blocking nut RA is fasten Do not change the position of the air damper rods 12 the air and oil rate are now adjusted at the maximum power stage go on with the point to point adjustement on the SV adjusting cam as to reach the minimum output point 24 13 14 15 16 17 18 19 20 21 1 UNIGAS M039144CD as for the point to point regulation in order to set the cam foil shape move the oil low flame microswitch cam III a little lower than the maximum position 90 set the TAB thermostat to the minimum as far as fully modulating burners see related paragraph in order that the actuator moves progressively towards the low flame position move cam Ill towards the minimum to move the actuator towards the low until the two bearings find the adjusting screw that refers to a lower position screw V to increase the rate unscrew to decrease in order to get the pressure as showed on chart dia gram on Light oil nozzles on page 17 according to the requested rate Move again cam III towards the minimum to meet the next screw on the adjusting cam and repeat the previous step go on this way as to reach t
44. t within the reach of chil dren as they may prove harmful Before any cleaning or servicing operation disconnect the unit from the mains by turning the master switch OFF and or through the cut out devices that are provided e Make sure that inlet or exhaust grilles are unobstructed 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 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 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 For all the units that have been modified or have options fitted then original accessory equipment only shall be used This unit shall be employed exclusively fo
45. te lockout For automatic start repetition the clearly mar ked wire link B on the plugin section of the LAL must be cut away C Controlled shutdown in the case of controlled shutdown BV will immediately be closed At the same time the sequence switch is star ted to program t6 C D Sequence switch travels to start position A During burner off times the flame supervision circuit is live Lockout indication a b Startup sequence b b Idle step with no contact confirmation b b a Postpurge program Burner control can immediately be reset after lockout Do not press the lockout reset button for more than 10 seconds The sequence switch always travels to the start position first After resetting After rectification of a fault that led to shutdown After each power failure During this period of time power is only fed to terminals 7 and 9 11 Then the LAL will program a new burner startup sequence Specifications Power supply 230 V 15 10 96 for LAL2 on request AC 100 V 15 110 V 10 Frequency 50 Hz 6 60 Hz 6 Absorption AC 3 5 VA Mounting position optional Protection IP 40 Perm input current at terminal 1 AC 5 A max 20 A peak Perm current rating of control terminals 3 6 7 9 11 15 20 4 A max 20 A peak Internal fuse T6 3H250V according to IEC 127 External fuse max 10A Weight Device 1000 g Plug in base 165 g MJH
46. uels Characteristics and test methods Gas Heavy oil 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 CEI EN 60335 1 Household and similar electrical appliances Safety Part 1 General requirements EN 50165 Electrical equipment of non electric appliances for household and similar purposes Safety requirements National standards UNI 7824 Monobloc nebulizer burners for liquid fuels Characteristics and test methods 1 UNIGAS M039144CD GENERAL FEATURES This series represents monobloc burners made in die cast aluminium housing with relative flange to work on heating generators The output range is from 2550kW to 13000kW according to models They can be provided in progressive or fully modulating version 10 11 12 Fig 1 Control panel Electrical panel Pump Burner flange Blast tube combustion head Burner cover Oil pressure governor Adjusting cam Actuator 10 Air inlet 11 Air pressure switch 12 Gun and head adjusting ring nut CON amp The fuel coming from the supply line is pushed by the pump 11 to the nozzle and then into the combustion chamber where the mix ture between fuel and air takes place and consequently the flame In the burners the mixture bertween fuel and air to perform clea
47. ways use O Rings or mechanical seal copper or aluminium gaskets jun ctions if possible e An external filter should always be installed in the suction line upstream of the fuel unit Oil pumps 3 75 cSt 0 45 bar to prevent gasing 3600 rpm max 1 Inlet G3 4 2 Pressure gauge port G1 4 3 Vacuum gauge port to measure the inlet vacuum G1 4 4 pressure adjusting valve G3 4 Note pump with rotation 14 1 UNIGAS M039144CD Suntec TV Pressure governor Pressure adjustment Remove cap nut 1 and the gasket 2 unscrew the lock nut 4 To increase pressure twist adjusting screw 3 clockwise To decrease the pressure twist screw counterclockwise Tight the lock nut 4 refit the gasket 2 and the cap nut 1 Key 1 Cap nut 2 Gasket 3 Adjusting screw 4 Lock nut 5 Gasket 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 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 15 1 UNIGAS M039144CD Oil circuit The fuel is pushed into the pump 1 to the nozzle 3 at the delivery pressure set by the pressure governor The solenoid valve 2 stops the fuel im
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