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Enertech BG950 Installation And Maintenance Instructions Manual

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178 001 85
Installation- and maintenance instruction
BG950

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Summary of Contents for Enertech BG950

  • Page 1 178 001 85 Installation- and maintenance instruction BG950...

  • Page 2: Table Of Contents

    1.2.1 Safety directions ............................6 1.2.2 Acceptance inspection..........................6 1.2.3 Preparations for installation .......................... 6 2. TECHNICAL DATA ......................7 2.1 Type designation BG950 ........................7 2.2 Dimensions ............................. 7 2.3 Out range ............................... 7 2.4 Capacity chart according to EN 676 ...................... 7 2.7 Declaration of concordance/conformity ....................
  • Page 3 11. GENERAL INSTRUCTIONS ..................29 11.1 Adjustment of burner .......................... 29 11.2 Service ..............................29 12. GENERAL INSTRUCTION ..................30 12.1 Flame monitoring and measurement of ionisation current ..............30 12.2 UV-detector ............................30 12.3 Adjustment of air pressure switch ....................... 31 12.4 Adjustment of min.

  • Page 4: Description

    1. DESCRIPTION 1.1 Components Flame cone Fan wheel Shrouded disc Ignition electrode Nozzle Ionisation electrode 12. Ignition transformer 13. Air damper 15. Air pressure switch 23. Contactor with thermal overload protection 24. Control box 25. Filter 26. MultiBloc 29. Ball valve...

  • Page 5: Components

    1. DESCRIPTION 1.1 Components 26 14 Guide bar Electric panel Fan house 10. Motor 11. Connection gas fittings 14. Air damper motor Fuse holder 17. Change-over switch increase-decrease 18. Change-over switch manually-automatically 19. Indicating lamp 20. Switch l-ll 21. Time meter (optional) 26.

  • Page 6: Warning

    If another electrical connection is used than the one recommended by Enertech, there might be a risk of material damage or personal injury. Notice should be carefully taken by the installer that no electrical cables or gas pipes get squeezed or damaged when installing or at service If the boiler is provided with an opening door, this should be interlocked with a door switch.

  • Page 7: Technical Data

    2. TECHNICAL DATA 2.1 Type designation BG950 2.2 Dimensions øC 1000 Length of burner Flange Measure A Burner tube Burner tube tube ± 5 mm ± 5 mm Measure B Measure C Standard Standard + 200 Standard + 300 The above dimensions are max. measurements. Depending on the components used, the measurements may vary.

  • Page 8: Declaration Of Concordance/Conformity

    CE-0085 AT 0313 BG700 CE-0085 AT 0314 BG800 CE-0085 BR 5754 BG950 Enertech AB declares under its sole responsibility that the above- named products are in conformity with the following standard(s) or other normative document(s) and fulfil the applicable provisions of the below-mentioned EC Directives. Document: EN 676...

  • Page 9: Skeleton Diagrams

    3. SKELETON DIAGRAMS 1. Ball valve 2. Filter 3. Governor 4. Pressure gauge with shut-off cock 5a. Gas pressure switch, mini 5b. Gas pressure switch, maxi 6a. Main valve, 2 -stage 6b. Safety valve 7. Valve proving system 8. Air damper motor 9.

  • Page 10: Mounting Of The Burner

    4. MOUNTING OF THE BURNER To facilitate the mounting of the boiler the burner head with gas flange and pull rods can be removed from the burner. Do like this: Loosen the screw "A" on both sides and the two stop bolts at the end of the pull rods. Remember that the electric cables to solenoid valve and gas switch are also disconnected.

  • Page 11: Electric Equipment

    5. ELECTRIC EQUIPMENT 5.1 Wiring diagram LFL 1... with Ionization electrode...

  • Page 12: List Of Components With Ionization Electrode

    5. ELECTRIC EQUIPMENT 5.2 List of components with Ionization electrode A1 Gas burner control S11 Change-over switch, Aut.-man. A2 Power control S12 Change-over switch, A3 Valve, leak tester, Increase-Reduce Dungs VPS504 S15 Control thermostat, 3-pole B1 Ionization electrode (only for 2-stage sliding) F1 Operation fuse S20 Main switch F2 Operating fuse...

  • Page 13: Wiring Diagram Lfl 1

    5. ELECTRIC EQUIPMENT 5.4 Wiring diagram LFL 1... with UV-Detector...

  • Page 14: List Of Components With Uv-Detector

    5. ELECTRIC EQUIPMENT 5.5 List of components with UV-Detector A1 Gas burner control S11 Change-over switch, Aut.-man. A2 Power control S12 Change-over switch, A3 Valve, leak tester, Increase-Reduce Dungs VPS504 S15 Control thermostat, 3-pole F1 Operation fuse (only for 2-stage sliding) F2 Operating fuse S20 Main switch F3 Operating fuse...

  • Page 15: Wiring Diagram Lfl 1

    5. ELECTRIC EQUIPMENT 5.4 Wiring diagram LFL 1... with R316...

  • Page 16: List Of Components With R316

    5. ELECTRIC EQUIPMENT 5.5 List of components with R316 Gas burner control S7 Main switch Valve, leak tester, S8 Air pressure switch Dungs VPS504 S10 Gas pressure switch, max. S1 1 Change-over switch, Aut.-man. Power control R316 S12 Change-over switch, A6(2) PT 100-sensor, Increase-Reduce Thermocouple, current/voltage...

  • Page 17: Control Programme Under Fault Conditions And Lockout Indication Lfl1

    5. ELECTRIC EQUIPMENT 5.7 Control programme under fault conditions and lockout indication LFL1..In the event of fault conditions the fuel supply is always interrupted immediately and, simultaneously, the sequence switch stops and thus the lockout indicator. The symbol appearing above the reading mark indicates the kind of fault: ◄...

  • Page 18: Measures And Checks Before Start-Up

    6. MEASURES AND CHECKS BEFORE START-UP 6.1 2-Stage or modulating burners Inner assembly Ensure that the ignition and ionisation electrodes are correctly ajusted. The sketch (see separate page) shows the correct measurements. Gas quality Ensure that the burner head is meant for the gas quality to be used (see fig.).

  • Page 19: Inner Assembly

    6. MEASURES AND CHECKS BEFORE START-UP 6.2 Inner assembly Natural gas, LPG Distance ionisation electrode - shrouded disc.

  • Page 20: Determination Of Gas Volume For The Installation

    7. DETERMINATION OF GAS VOLUME FOR THE INSTALLATION Specifications on natural gas, town gas and biogas vary. For more exact information please contact the gas distributor. Net calorific value H 15°C/1013,25 mbar Gas quality kWh/Nm MJ/Nm Natural gas 9,50 34,20 Natural gas 8,23 29,63 Propane 24,41 87,88 Butane 32,13 115,67 Biogas 6,00 21,60 7.1 Example how to calculate the gas volume (natural gas) V = Gas volume Nm Q = Boiler output 2200 kW...

  • Page 21: Multi-Bloc

    8. MULTI-BLOC 8.1 View 8.1.1 MB-VEF 412 - 425 B01 17 2 16 11 18 1. Electrical connection gas pressure switch mini 2. Electrical connection gas valve 3. Pressure switch mini 4. Flange connection inlet 5. Test point connection 1/8” before V 6. Filter (on Multi-Bloc 425 external filter) 7.

  • Page 22: Mbc 1900 - 3100 Vef

    8. MULTI-BLOC 8.1.2 MBC 1900 - 3100 VEF 1. Electrical connection gas pressure switch mini 2. Electrical connection gas valve 3. Pressure switch mini 4. Flange connection inlet 5. Test point connection before V 6. Filter 7. Data plate 8. Connection 1/8” P 9.

  • Page 23: Technical Data

    8.0 MULTI-BLOC, MB-VEF, MBC-VEF 8.2 Technical data - Max inlet pressure 360 mbar - Valves V class A group 2 in accordance with EN 161 - Governor class A group 2 in accordance with EN88 - Ratio V P 0,75:1-3:1 - Filter according to DIN 3386 - Ambient temperature -15°C- +70°C - Protection standard type IP54 (according to IEC 529, DIN 40050)

  • Page 24: Double Solenoid Valve Gas-Air-Ratio Control Type Mbc

    9. Double Solenoid Valve Gas-air-ratio control Type MBC-...-VEF 9.1 Nominal diameters DN 65 - DN 125 Installation position Electrical connection Grounding acc. local IEC 730-1 (VDE 0631 T1) regulations °C [mbar] Max. operating pressure 500 mbar Ambient temperature DN 65 - 125 : -15 °C …...

  • Page 25: Mbc

    9. Double Solenoid Valve Gas-air-ratio control Type MBC-...-VEF 9.2 MBC-...-VEF Pressure taps 1, 2, 3 screwed seal plug G 1/8 4, 5, option Connecting bore for system accessories 6, 7 screwed seal plug G 1/4 8, 9, option screwed seal plug G 1/2 (option) 10 Pulse line pBr (built in) 11, 12 Vent plug G 1/8 1.

  • Page 26: Mounting

    9. Double Solenoid Valve Gas-air-ratio control Type MBC-...-VEF 9.3 Mounting 1. Insert setscrews A 5. Option externer Impuls: 2. Insert seals Attach pulse lines p Br , p L , p F 3. Insert setscrews B 6. After installation, perform 4.

  • Page 27: Setting The Pressure Controller

    9. Double Solenoid Valve Gas-air-ratio control Type MBC-...-VEF 9.5 Setting the pressure controller Allen key no. 2.5 Pressure controller is provisionally set at the factory. The setting values must be locally adapted to machine conditions. Important: Follow the instructions of the burner manufacturer. 1.

  • Page 28: Adjustment Of Gas Flow

    10. ADJUSTMENT OF GAS FLOW - Before the burner starts vent the lines to make sure that there is gas vailable at the multibloc - Use an allen key size 2,5 mm for adjusting N and V - Connect a pressure gauge for measur-ing P , (advisable to find out if the valves are open) - Set the switch in position MAN.

  • Page 29: General Instructions

    11. GENERAL INSTRUCTIONS 11.1 Adjustment of burner The burner is from the factory pre-set to an average value that must then be adjusted to the boiler in question. All burner adjustments must be made in accordance with boiler manu-facturers instructions.These must include the checking of flue gas temperatures, average water temperature and CO or O...

  • Page 30: General Instruction

    12. GENERAL INSTRUCTION 12.1 Flame monitoring and measurement of ionisation current The burner is monitored according to the ionisation principle. Check the ionisation current on start-up and on each service call. The reason for a low ionisation current may be leaking currents, bad connection to earth, dirt or a faulty position of the flame electrode in the burner head.

  • Page 31: Adjustment Of Air Pressure Switch

    12. GENERAL INSTRUCTION 12.3 Adjustment of air pressure switch The air pressure switch should stop the burner, if the air volume is reduced. The air proving device shall be adjusted in such a way that if there is insufficient air supply at the highest or lowest burner operating stage, the device operates before the supervised pressure is less than 80% of the pressure at the controlled stage and the CO content of the combustion products exceeds 1% by volume.

  • Page 32: Leakage Control, Dungs Vps 504 Series 2

    13. LEAKAGE CONTROL, DUNGS VPS 504 SERIES 2 13.1 Technical data Test volume ≤ 4,0 l Pressure increase using motor pumps ≈ 20 mbar Backup (customer supply) 10A fast or 6.3A slow Fuse integrated in housing, replaceable T6,3L 250V (IEC 127-2/111) (DIN41662) Switching capacity Operating outputs SO1, SO2,SO4: 4A...

  • Page 33: Program Sequence Schedule

    13. LEAKAGE CONTROL, DUNGS VPS 504 SERIES 2 13.3 Program sequence schedule Controller VPS 504 "TIGHT" TEST =0,31 Motor pump Solenoid valve Differential pressure sensor Release signal Controller VPS 504 "TIGHT" TEST=41 Motor pump Solenoid valve Differential pressure sensor Release signal Controller VPS 504 "NOT TIGHT"...

  • Page 34: Handing Over Of The Installation

    14. HANDING OVER OF THE INSTALLATION 14.1 Handing over of the installation - Make repeated start attempts to ensure that the adjustments function. - Close the ball valve during operation to check that the gas switch switches off at the set value. - Remove the hose for the air pressure switch to check that the burner locks out.

  • Page 35: Fault Location Guide

    15. FAULT LOCATION GUIDE 15.1 Gas burner The basis for a trouble free operation can only be ensured by the correct combined effect of the three factors: electricity, gas flow and combustion air. Should any of these factors change, troubles may arise. It has been proved that many troubles have rather simple causes. Before calling the serviceman, the following checks should be made: 1.
  • Page 36 15. FAULT LOCATION GUIDE Cause Remedy No flame establishment despite a trouble free start The gas solenoid valve defective Replace The gas solenoid valve does not Replace coil or the whole valve if open despite its obtaining voltage necessary. No voltage to the solenoid valve Check the contact No electrical connection through Test the adjustment and the func-...
  • Page 37 15. FAULT LOCATION GUIDE Cause Remedy Pulsations at start The ignition electrodes are Re-adjust. wrongly adjusted The gas pressure is too high Check and adjust by means of a pressure gauge and a pressure adjustment valve The flue gas side is blocked Check the chimney flue Pulsations during operation The burner is not correctly Re-adjust adjusted...

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