Unigas LG70 L-.TN 10 Series, Manual Of Installation - Use - Maintenance

Page 1: ...M039135CG Rev 6 2 07 2020 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES Idea Series Gas burners MANUAL OF INSTALLATION USE MAINTENANCE LG NG70 LGX NGX70 LG NG90...

Page 2: ...e 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...

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

Page 4: ...quipment of machi nes EN 60335 2 Electrical equipment of non electric appliances for house hold and similar purposes Safety requirements Burner data plate For the following information please refer to...

Page 5: ...2 9 0 Gas pressure min max mbar see Note 2 Power supply 230V 1N ac 50 Hz Total power consumption kW 0 40 Electric motor kW 0 10 Protection IP40 Approx weight kg 14 Valves size Gas connection 3 8 Rp1...

Page 6: ...upply 230V 1N ac 50 Hz Total power consumption kW 0 40 Electric motor kW 0 10 Protection IP40 Approx weight kg 14 Valves size Gas connection 3 8 Rp1 2 1 2 Rp1 2 1 2 Rp1 2 1 2 Rp1 2 Operation High low...

Page 7: ...NL I2ELL DE I2Er FR Only for I2EK the appliance was configured for the appliance category K I2K and is suitable for the use of G and G distribution gases according to the specifications as included in...

Page 8: ...8 299 78 5 NG70 L 1 2 443 34 157 287 410 365 75 291 80 95 99 162 218 M8 155 86 138 110 285 408 118 241 168 14 438 299 78 5 NG90 S 1 2 365 34 70 295 331 365 75 291 80 95 102 162 218 M8 155 86 138 110 2...

Page 9: ...andard LGX NGX70 383 76 76 299 299 304 14 291 80 98 99 145 218 M8 153 96 120 108 296 296 130 130 167 7 438 291 Extended LGX NGX70 451 66 149 294 377 304 14 291 80 98 99 145 218 M8 153 96 120 108 292 3...

Page 10: ...URE IN CCOMBUSTION CHAMBER mbar LG90 L TN kW LG90 L AB kW 1 0 5 0 0 5 1 1 5 2 2 5 3 20 30 40 50 60 70 80 1 0 5 0 0 5 1 1 5 2 2 5 3 10 20 30 40 50 60 70 80 1 0 5 0 0 5 1 1 5 2 2 5 3 30 40 50 60 70 80 9...

Page 11: ...3 h GAS PRESSURE mbar NG90 M TN Gas rate Stm3 h NG90 M AB Gas rate Stm3 h L P G Burners GAS PRESSURE mbar LG70 L TN Gas rate Stm3 h LG70 L AB Gas rate Stm3 h 1 0 5 0 0 5 1 1 5 2 2 5 3 35 45 55 65 75 1...

Page 12: ...f 22300 kcal Stm3 15 C 1013 mbar and a density of 2 14 kg Stm3 When the calorific value and the density change the pressure values should be adjusted accordingly 2 4 6 8 10 12 14 16 18 1 1 5 2 2 5 3 3...

Page 13: ...lolts D completely 9 seal the space between the blast tube and the refractory lining with appropriate insulating material ceramic fibre cord or refractory cement Matching the burner to the boiler The...

Page 14: ...Once the train is installed connect the gas valves group plug Fig 3 Key a Heat output in kW b Length of the flame tube in meters c Flame tube firing intensity in MW m3 d Combustion chamber diameter m...

Page 15: ...ger than 3 meters insert a sectioning relay following the attached electrical wiring diagram Burner power supply connector HIGH LOW flame connector Single stage burner connector Double stage burner co...

Page 16: ...or 230V phase phase without a neutral as fas as the Siemens LME2 control box the RC Siemens RC466890660 filter must be inserted between terminal 2 and the earth terminal on the board Key C Capacitor 2...

Page 17: ...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 generator s pressure outlet Fig 4 2 to get the p...

Page 18: ...lorific value of 22300 kcal Stm3 15 C 1013 mbar and a density of 2 14 kg Stm3 When the calorific value and the density change the pressure values should be adjusted accordingly Gas pressure in combust...

Page 19: ...e maximum output high flame first by means of the air damper and the valves group pressure stabiliser respectively Gas pressure in combustion head LG70 L Gas rate Stm3 h LG90 L Gas rate Stm3 h ATTENTI...

Page 20: ...ards the MIN position rotating clockwise the VRT screw Fig 5 go on adjusting air and gas flow rates check continuosly the flue gas analisys as to avoid combustion with little air dose the air accordin...

Page 21: ...u smetns are accomplished close screw A Fig 8 in the measuring nozzle The air flow rate can be adjusted by means of the V screw The air damper position is shown on the graduated indes I where 0 refe r...

Page 22: ...g the round plate C turn clockwise to decrease the gas rate or counterclockwise to increase it The index S shows the opening angle of the butterfly valve 8 If it was necessary to change the low flame...

Page 23: ...follows Be sure that the filter is clean Remove the transparent plastic cap While the burner is operating at the maximum output test the gas pressure on the pressure port of the minimum gas pressure s...

Page 24: ...L 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...

Page 25: ...DLE 405 412 Check the filter at least once a year Change the filter if the pressure difference between pressure connection 1 and 3 Fig 16 Fig 17 is p 10 mbar Change the filter if the pressure differen...

Page 26: ...on head To remove the combustion head proceed as follows 1 remove the burner cover 2 unscrew the VT fixing screws 3 disconnect the ignition cable CA unscrew the fixing nuts D and shift the combustion...

Page 27: ...ue shown check the position of the detection electrode the electrical contacts and if necessary replace the detection electrode Seasonal stop To stop the burner in the seasonal stop proceed as follows...

Page 28: ...MAIN SWITCH OPEN LACK OF GAS MAXIMUM GAS PRESSURE SWITCH DEFECTIVE IF PROVIDED THERMOSTATS PRESSURE SWITCHES DEFECTIVE OVERLOAD TRIPPED INTERVENTION AUXILIARIES FUSE INTERRUPTED CONTROL BOX FAULTY DEF...

Page 29: ...EAD 8 2 FLANGE 7 2 AIR DAMPER ASS Y 8 3 BUTTERFLY VALVE INDEX ASS Y 7 3 FAN WHEEL 8 4 INSPECTION GLASS 7 4 PRESSURE SWITCH 8 5 BUTTERFLY VALVE 7 5 MOTOR 8 6 COMBUSTION HEAD 7 6 AIR DAMPER INDEX ASS Y...

Page 30: ...30...

Page 31: ...lamp LGB LMG LME SIEMENS control box MA Burner power supply terminal board MV Fan motor N Neutral PA Air pressure switch PG Minimum gas pressure switch ST Thermostats or pressure switches group TA Ign...

Page 32: ...flame indicator light LGB22 LMG22 LME22 SIEMENS control box MV Fan motor PA Air pressure switch PG Minimum gas pressure switch STA4 5B0 37 63N30L BERGER actuator ST Thermostats or pressure switches s...

Page 33: ......

Page 34: ......

Page 35: ......

Page 36: ......

Page 37: ......

Page 38: ......

Page 39: ...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 a...

Page 40: ...d time for air pressure signal t11 Programmed opening time for actuator SA t12 Programmed closing time for actuator SA SB R W GP AL M LP BV1 Z FS tw t1 t3n TSA t4 7 t10 EK2 12 10 3 7 4 6 1 8 t3 A B B...

Page 41: ...W Limit thermostat pressure switch Z Ignition transformer LME22 connection diagram NT PC control RESET EK FSV ION 1 2 3 M 4 BV1 5 7 Z 10 AL T 12 R W GP STB 9 7101 24 0606 pa 6 LP 8 EK 11 K1 K2 1 K3 K...

Page 42: ...r 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 stat...

Page 43: ......

Page 44: ...ia L Galvani 9 35011 Campodarsego PD ITALY Tel 39 049 9200944 Fax 39 049 9200945 9201269 web site www cibunigas it e mail cibunigas cibunigas it Note specifications and data subject to change Errors a...

Page 45: ......

Page 46: ......