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Summary of Contents for Unigas LG35
- Page 1 LG/NG/NGX35 IDEA Series Gas burners MANUAL OF INSTALLATION - USE - MAINTENANCE BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ M039121CE Rev. 4 04/2009...
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Page 2: Table Of Contents
C.I.B. UNIGAS - M039121CE TABLE OF CONTENTS WARNINGS ................................3 PART I: INSTALLATION ............................5 GENERAL FEATURES ................................... 5 How to interpret the burner’s “Performance curve” ......................... 6 Specifications ....................................7 Country and usefulness gas categories ............................8 Overall dimensions ..................................9 Performance Curves .................................. -
Page 3: Warnings
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. - Page 4 DIRECTIVES AND STANDARDS 3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS Gas burners GENERAL European directives: The burner shall be installed by qualified personnel and in com- - Directive 90/396/CEE - Gas Appliances; pliance with regulations and provisions in force; wrong installation Directive 2006/95/EC on low voltage;...
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Page 5: Part I: Installation
C.I.B. UNIGAS - M039121CE PART I: INSTALLATION GENERAL FEATURES This series burners can be arranged to use external combustion air on request. In this case the burner will be supplied with a watertight and airtight air intake, that can be linked outside the installation room by means of an exetensible duct. Combustion air can be easily set by the adjusting screw without removing the cover. -
Page 6: How To Interpret The Burner's "Performance Curve
C.I.B. UNIGAS - M039121CE 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: furnace input, in kW or kcal/h (kW = kcal/h / 860);... -
Page 7: Specifications
C.I.B. UNIGAS - M039121CE Burner model identification Burners are identified by burner type and model. Burner model identification is described as follows. Type NG35 Model M-. TN. S. (3) (4) (5) (6) (7) (8) NG - Natural gas burner (1) BURNER TYPE LG - L.P.G. -
Page 8: Country And Usefulness Gas Categories
C.I.B. UNIGAS - M039121CE Note1: All gas flow rates are referred to Stm /h (1013 mbar pressure, 15 °C temperature) and are valid for G20 gas (nett calorific value H = 34.02 MJ/Stm ); for L.P.G. (nett calorific value H = 93.5 MJ/Stm... -
Page 9: Overall Dimensions
Overall dimensions (mm) Boiler drilling template Tmin. min. max. min. max. min. max. min. max. min. max. NG35 S (1/2") 338 269 14 255 Ø80 Ø95 275 Ø78,5 NG35 L (1/2") 416 269 14 255 Ø80 Ø95 275 Ø78,5 NGX35 S (1/2") 338 269 14 255 Ø80 Ø95 Ø80... -
Page 10: Performance Curves
C.I.B. UNIGAS - M039121CE Performance Curves Natural Gas Burners L.P.G. Burners NG35 M-.TN... LG35 L-.TN... -0,5 -0,5 Low NOx Natural Gas Burners NGX35 M-.TN... -0,5 Pressure in the network - gas rate curves Natural Gas Burners L.P.G. Burners NG35 M-.TN... -
Page 11: Mountings And Connections
C.I.B. UNIGAS - M039121CE MOUNTINGS AND CONNECTIONS Packing Burners are dispatched in cardboard packages whose dimensions sre: burners with no external air intake: 290mm x 260mm x 490mm (L x P x H) burners with external air inlet provided: 290mm x 330mm x 490mm Packing cases of this kind are affected by humidity and are not suitable for stacking. -
Page 12: Installing The Gas Train
C.I.B. UNIGAS - M039121CE spacer to move the burner backwards or to design a blast tube tha suites the utilisation (please, contact the manifacturer). a) Heat output in kW b) Lenght of the flame tube in meters c) Flame tube firing intensity in MW/m d) Combustion chamber diameter (m) Fig. -
Page 13: Electrical Connections
C.I.B. UNIGAS - M039121CE 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 ADE- QUATE FOR CONNECTION TO THE MAINS. STRICTLY OBSERVE THE DATA PLATE. -
Page 14: Adjusting The Air And Gas Flow Rates
C.I.B. UNIGAS - M039121CE ADJUSTING THE AIR AND GAS FLOW RATES 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. -
Page 15: Pressure In The Combustion Head - Gas Flow Rate Diagrams
C.I.B. UNIGAS - M039121CE bustion head (quoted on the y axis). NOTE: THE PRESSURE-RATE CURVES ARE APPROXIMATE; FOR A PROPER SETTING OF THE GAS RATE, PLEASE REFER TO THE GAS METER READING. Pressure in the combustion head - gas flow rate diagrams... -
Page 16: Gas Multibloc Control And Safety Group Dungs Mbc 65-Dle
C.I.B. UNIGAS - M039121CE Gas MULTIBLOC control and safety group DUNGS MBC 65-DLE Fig. 8 Fig. 9 Keys A. measuring noozle P2 (Fig. 9) before valve D B. pressure regulator C. startup valve (no. 10 in Fig. 9) D. maximum flow rate valve(no. 9 in Fig. 9) Filter, valves, regulator and pressure switch are combined into the DUNGS Gas-MultiBloc. -
Page 17: Gas Valves Group Dungs Mb-Dle 405 (1/2" Gas Train Burners)
C.I.B. UNIGAS - M039121CE Gas Valves Group DUNGS MB-DLE 405 (1/2” gas train burners) Multibloc MB-DLE VS T(VR) The multibloc unit is a compact unit consisting of two valves, gas pressure switch, pressure stabilizer and gas filter. The valve is adjusted by means of the RP regulator after slackening the locking screw VB by a number of turns. -
Page 18: Adjusting The Air Flow Rate
C.I.B. UNIGAS - M039121CE Adjusting the air flow rate The air rate is set by means of V screw. The air damper position is showed by the graduated scale I, where the symbol “0” shows the complete closed position of the air damper. -
Page 19: Adjusting The Combustion Head
C.I.B. UNIGAS - M039121CE Adjusting the combustion head In order to adjust the combustion head, proceed as follows: remove the bunrer cover; set the combustion head by means of a screwdriver, working on the screw VRT: rotate counterclockwise to move the combustion head forward, or rotate clockwise to move it backwards;... -
Page 20: Part Ii: Operation
C.I.B. UNIGAS - M039121CE PART II: OPERATION 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. -
Page 21: Part Iii: Maintenance
C.I.B. UNIGAS - M039121CE PART III: MAINTENANCE At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry out the maintenance at the end of each heating season; in the case of continuous operation the maintenance is carried out every 6 months. -
Page 22: Disassembling The Burner Plate For The Fan Maintenance
C.I.B. UNIGAS - M039121CE Disassembling the burner plate for the fan maintenance To clean/replace the fan, follow the next procedure: remove the burner plate C by unscrewing the V1, V2, V3 screws and the F fixing pin; hang the plate in one of the ways showed on figure in order to make maintenance operations easier. -
Page 23: Correct Electrodes Positioning
C.I.B. UNIGAS - M039121CE Correct electrodes positioning To guarantee a proper ignition, the measures indicated in must be respected. Ensure the locking screw VE of the electrodes group is tight before refit the burner. Standard burners (mm) detection electrode grounded electrode... -
Page 24: Troubleshooting
TROUBLESHOOTING TROUBLE CAUSE ● 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 ●... -
Page 25: External Air Intake Kit Assembly (When Provided)
C.I.B. UNIGAS - M039121CE External air intake kit assembly (when provided) The burner may be supplied with an external air intake with components contained in the kit provided separately (Code 3300023). Proceed as follow for assembly. Remove the burner cover. -
Page 26: Electrical Wiring Diagram
C.I.B. UNIGAS - M039121CE ELECTRICAL WIRING DIAGRAM Electrical diagram 01-318 Rev. 5 - complete key Time counter Flame detection electrode Gas electro-valve upstream (or valve group) Gas electro-valve downstream (or valve group) Fuse Main switch Phase Burner lockout indicator light... - Page 27 C.I.B. UNIGAS - M039121CE Cod. 01-319 Rev. 5 - Single-stage burners...
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Page 30: Burner Exploded View
BURNER EXPLODED VIEW POS. DESCRIPTION POS. DESCRIPTION SCREW INTERNAL AIR DAMPER 18.2 CONTROL BOX SOCKET AIR INTAKE 18.3 CONTROL BOX AIR DAMPER INDEX 19.2 AIR PRESSURE SWITCH GRID IGNITION TRANSFORMER STANDARD BLAST TUBE 21.1 NIPPLE FLANGE 21.2 ELBOW STANDARD COMBUSTION HEAD 21.3 GAS VALVES GROUP WITH GOVERNOR DETECTION ELECTRODE... -
Page 32: Spare Parts
C.I.B. UNIGAS - M039121CE SPARE PARTS Desription Code LG/NG35 NGX35 CONTROL BOX 2020466 2020466 DETECTION ELECTRODE 2080112 2080113 GROUNDED ELECTRODE 2080235 2080235 IGNITION ELECTRODE 2080268 2080268 GASKET 2110038 2110055 FAN WHEEL 2150048 2150048 AIR PRESSURE SWITCH 2160060 2160060 TRANSFORMER (COFI) -
Page 33: Appendix
APPENDIX: COMPONENTS CHARACTERISTICS Status Color code Color SIEMENS LME11/21/22 CONTROL BOX Undervoltage Yellow - red 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 ........ - Page 34 LME11 control sequence LME22 control sequence B´ B´ SB / R W / GP SB / R W / GP (LR) BV2 7101d02/0606 LME21 control sequence B´ SB / R W / GP Control sequence Waiting time Purge time TSA Ignition safety time Preignition time Postignition time (LR) BV2...
- Page 35 LME11 connection diagram Connection diagram Error message (alarm) Fuel valve C control RESET EK2 Remote lockout reset button Flame signal Gas pressure switch Air pressure switch Load controller K2/1 K2/2 Fan motor Control thermostat/pressurestat R / W Safety limit thermostat Limit thermostat /pressure switch Ignition transformer 7101 24 /0606...
- Page 36 CONTROL PROGRAM IN THE EVENT OF FAULT 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 If a fault occurs, all outputs will immediately be deactivated (in less is also mantained in the case fo mains failure.
- Page 40 C.I.B. UNIGAS S.p.A. Via L.Galvani, 9 - 35011 Campodarsego (PD) - ITALY Tel. +39 049 9200944 - Fax +39 049 9200945/9201269 web site: www.cibunigas.it - e-mail: cibunigas@cibunigas.it Note: specifications and data are subject to change without notice. Errors and omissions excepted.
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