Bentone BG 450-2 Installation And Maintenance Instruction
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Bentone BG 450-2 Installation And Maintenance Instruction

Biogas
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178 057 76-5
2020-02-13
Providing sustainable energy solutions worldwide
Installation- and maintenance instruction
BG 450-2
Biogas

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Summary of Contents for Bentone BG 450-2

  • Page 1 178 057 76-5 2020-02-13 Providing sustainable energy solutions worldwide Installation- and maintenance instruction BG 450-2 Biogas...
  • Page 2 Bentone...

  • Page 3: Table Of Contents

    10.3 List of components __________________________________________ 39 10.4 Control program at faults; fault mode indicator LME ..___________ 40 10.5 Leakage control Dungs VPS 504 ______________________________ 42 11. Troubleshooting _____________________________________________ 44 12. EU Declaration of conformity _________________________________ 47 14. General instructions for gasburners ____________________________ 48 Bentone...

  • Page 4: General Information

    • Burner pipes, fan wheels and air dampers may contain sharp edges. • The surface temperature of the burner’s components can exceed 60 °C. • Caution: The burner has moving parts, and there is risk of crushing injuries. 172 515 01 2018-01-02 Bentone...
  • Page 5 Open windows and doors. Close the gas ball valve. Warn residents; do not use doorbells. Evacuate the building. Notify the installer or gas supplier once the building has been evacuated. Bentone...
  • Page 6 Delivery check • Make sure everything is delivered and the goods have not been damaged during transit. • If something is wrong with a delivery, report it to the supplier. • Transport damage must be reported to the shipping company. Bentone...

  • Page 7: Technical Data

    2.2.1 Heat generator connection dimensions (Ø 210) Ø 255-290 Ø 170 BG 450 * The above dimensions are max. measurements. Depending on the components used, the measurements may vary. ** Min. recommended distance to fl oor. 172 515 28 2018-01-12 Bentone...
  • Page 8 BG, CZ, DE, EE, ES, FR, GR, HU, IS, 2R/3R IT, LU, LV, NO, PT, SI, All countries 20-360mBar AT, CH, CY, DK, FI, LT, RO, SE, 2H3B/P 20-360mBar GB, IE, 2H3P 20-360mBar NL, RO 2L3B/P 20-360mBar 2E3B/P 20-360mBar 2E(R)B 20-360mBar Bentone...
  • Page 9 Alt.2 The burner’s noise level can be reduced by connecting the burner’s air intake to the air duct that opens into an appropriate location. Installation must be done so it does not prevent air supply to the burner. Bentone...

  • Page 10: Description Bg 450

    Air pressure switch Electrical panel Impulse pipe MultiBloc Max. gas pressure switch Gas pressure switch Fan housing Changeover switch, increase- decrease Brake plate Changeover switch, manual- Ignition electrode automatic Ionisation electrode Indicator lamp, operation Motor Switch 0-1 Gas connection Bentone...

  • Page 11: General Instruktions

    Adjust the burner to appr. 20% excess air in accordance with the table. Check the flue gas temperature. Calculate the efficiency. Check also the actual gas volume on the gas meter so that the correct input is achieved. 172 515 03 2018-01-02 Bentone...

  • Page 12: Installation

    If not, use the connectors included. (Refer to connection under Electric equipment) If an electric connection other than the one recommended by Enertech is used, a risk of damage and injury can arise. 172 515 03 2018-01-02 Bentone...

  • Page 13: Skeleton Diagram, Biogas 2-Stage Burner

    At start-up, the safety valve opens and valve 1 gas flows through valve 2, which was opened using adjustment 172 515 72 2018-02-19 VPS: Standard on burners with an output ≥ 1200 kW. Optional on burners with an output < 1200 kW. Bentone...

  • Page 14: Handling And Lifting Instruction

    4.7 Handling and lifting instruction 4.7.1 BG 450 Option The lifting aids we use here are available as accessory, Figure 1 Figure 1 172 515 29 2018-01-02 Bentone...

  • Page 15: Mounting On The Boiler

    Once the gas flange is fitted to the boiler, it is easy to lift the burner body up onto the guides. Assemble the burner in reverse order to its disassembly. Check the gas tightness. Service position 172 515 30 2018-01-15 Bentone...

  • Page 16: Inspection Of Gas Nozzle Before Commissioning

    Re-assemble the burner in reverse order to that described above. When re- assembling, make sure that the O-ring located between the gas nozzle and the gas flange is in the correct position when the nozzle is re-fitted. Service position 172 515 31 2018-01-15 Bentone...

  • Page 17: Leakage Control

    The gas valve is energized and opens and flame is established. At the end of the safety time (2-3 sec.) the gas control locks out. The solenoid valve and the motor will be ”dead”. Remove the link from the gas pressure switch after the test is finished. Bentone...

  • Page 18: Gas Nozzle

    4.11 Gas nozzle Natural gas Propan Biogas (UV detector) Bentone...

  • Page 19: Setting Air Damper

    This function facilitates an exchange of damper motor. Solenoid valve High capacity (black) High capacity (red) Low capacity (orange) Closed damper (blue) Releasing button N.B! The upper position is the standard positiont 172 515 14 2018-01-02 Bentone...

  • Page 20: Setting The Burner

    A left turn opens the brake plate, providing a lower pressure drop and more air to the combustion process. A right turn closes the brake plate, providing a higher pressure drop and less air to the combustion process. 172 515 32 2018-01-15 Bentone...

  • Page 21: Setting The Air Pressure Switch

    This is to ensure the reliable function of the burner. If breakdowns or interruptions occur, the air pressure switch is probably set to a too narrow position. Fit the protective cover, screw (Y). Bentone...

  • Page 22: Setting The Min. Gas Pressure Switch

    The tolerance on the scale for the min. gas pressure switch is approx. ±15%. Open the ball valve. Remove the pressure gauge and close the pressure outlet (X). Check the gas tightness. Fit the protective cover, screw (Y). Bentone...

  • Page 23: Gas Pressure Regulator Type Frs

    Max. operating pressure 500 mbar Pressure regulator Class A Ambient temperature -15 °C … +70 °C Inlet pressure range 5 - 500 mbar Family 1 + 2 + 3 Outlet pressure range 2,5 - 200 mbar 172 515 66 2018-01-02 Bentone...
  • Page 24 Turn spindle to stop. Unscrew complete adjustment device B and remove spring C. Insert new spring D. Assemble complete adjustment device and adjust desired off-set. Screw on protective cap A. Stick adhesive label E onto typeplate. Attach lead seal. Bentone...

  • Page 25: Double Solenoid Valve Type Dmv-D

    Max. operating pressure 500 mbar DMV 505-520/11 Pressure taps 1, 2, 3, 4 Sealing plug Screw plugs 1,2,3 may also be replaced by a measuring socket G 1/8 DIN ISO 228. Concealed connecting bore for system accessories. 172 515 67 2018-02-12 Bentone...
  • Page 26 1 - 5. Switch on firing system. Replace solenoid Important: Make sure that the solenoid no. and voltage are correct! Remount hydraulic brake or adjust-ing plate as described on page 6. ”Replacing the hydraulic brake or adjusting plate”, steps 7 -11. Bentone...

  • Page 27: Recommended Excess Air When Using Default Setting

    Lower heat value Hu at normal state 15°C and 1013.25 mbar EN676 Grade of gas kWh/Nm MJ/Nm kcal/Nm Natural gas 34.02 8126 Natural gas 29.25 6986 Propane 24.6 88.00 21019 Butane 32.5 116.09 27728 Biogas 21,60 5159 172 515 13 Bentone...
  • Page 28 Temperature of gas at the gas meter [°C] Barometer reading [mbar] Pressure of gas at the gas meter [mbar] Factor calculated for multiplication with flow in Nm /h to arrive at actual flow in Nm Actual flow · 273+T 1013.25 Bentone...

  • Page 29: Calculating The Quantity Of Gas Supplied

    = Time for a certain quantity of gas consumed by the burner. M = Quantity of gas consumed. V = Actual gas flow Calculation example: t = 1 min 10 s M = 330 dm (litre) 0.33 m 1000 0.0194 h 3600 0,33 ≈ 17 m 0.0194 Bentone...

  • Page 30: Service

    Check the ionisation electrode (see chapter Gas nozzle). Replace if necessary. Fit the combustion assembly in reverse order. Press the burner together and lock using the nuts (B). Fit the Euro plugs and turn on the main power supply. Check/adjust the combustion. 172 615 16 2018-01-15 Bentone...

  • Page 31: Servicing Air Dampers

    Re-install the damper motor and mounting plate on the air intake. Ensure that the damper shaft and control arm are connected correctly. Install the intake grille for the air intake. Press the burner together and lock using the nuts (B). Check/adjust the combustion. Bentone...

  • Page 32: Replacement Of Damper Motor, Air

    Re-install the damper motor and mounting plate on the air intake. exchange of damper motor. Ensure that the damper shaft and control arm are connected correctly. Connect the damper motor cable. Fit the Euro plugs and turn on the mains power. Check/adjust the combustion. Bentone...

  • Page 33: Vibration

    Maximum vibration level are 5,0 mm/s • Check all bolts and nuts for correct torque • Check fan wheel for damage and contamination. Change when dirty/ unbalanced • Check motor bearings. If worn change motor/bearings Use lid screw for sensor mounting Bentone...

  • Page 34: Flame Monitoring And Ionisation Current Check

    Min. DC 1.5 µA Required current to ensure Min. DC 3 µA detection Possible detection current Max. DC 20 µA Operational indicator lamp <5 µA DC flashes green Operational indicator lamp >5 µA DC shines green 172 615 02 2018-01-02 Bentone...

  • Page 35: Uv-Detector

    AGQ3...A27 is mandatory. Correct functioning of aged UV cells can be checked as UV test with a higher supply voltage across the UV cell after controlled shutdown until terminal 3 ON. Connection diagram Measuring circuit for measuring the UV flame current Measurement made at the flame detector QRA… Bentone...

  • Page 36: Handing Over Of The Installation

    • Is the circulation pump in operation? • Is there a supply of fresh air to the installation? • If integral components are of a different make from what is stated in this manual, see the enclosed loose-leaf. 172 615 04 2018-01-02 Bentone...

  • Page 37: Electric Equipment

    Signals must be in different harnesses for safety reasons. Safety system as door switches, water level, pressure, temperature and other safety limiters must be installed in safety loop according to process. 172 615 38 2018-01-12 Bentone...

  • Page 38: Wiring Diagram Lme

    10.2 Wiring diagram LME Bentone...

  • Page 39: List Of Components

    The operation of the burner can now be stopped with the control switch or thermostat If the gas burner control is blocked Red light in the gas burner control is lit. The burner is restarted by pushing the reset button Bentone...

  • Page 40: Control Program At Faults; Fault Mode Indicator Lme

    (waiting period ≥ 10 s) 10.4.1.2 Limiting of starting repetitions LME 11... has a function with start repetition if the flame is not created at start or disappears during operation.. LME 11... allows max. three repetitions during continuous starting cycle. Bentone...
  • Page 41 3 s. To go back to the normal position, press and hold the reset button longer than 3 s. If the gas burner control is in the alarm position, it is reset by pressing the reset button 0.5...3 s. Bentone...

  • Page 42: Leakage Control Dungs Vps 504

    (max. 26 s), the VPS 504 generates a fault. The red LED is lit as long as the contact is released by the regulator (heat requirement). After a short voltage drop during testing or during burner operation, an automatic restart is performed. 172 615 10 2018-01-15 Bentone...
  • Page 43 VPS 504. For contact assignment of VPS 504 connector and heat generator Lock-out Operation connector, refer to wiring diagram. Outlet Switching feature: No isolation be- tween operating voltage circuit and Operating voltage ~(AC) 230V 50Hz control circuit. Bentone...

  • Page 44: Troubleshooting

    Replace solenoid valve terminals, or entire valve No power to solenoid valve Check the connection No electrical connection through air pressure gauge Check the air pressure gauge’s settings and functions Ignition load incorrectly set Increase/decrease gas supply Reduce airflow 172 615 06 2018-01-10 Bentone...
  • Page 45 Incorrectly set or faulty air sensor Check the settings and reset, or replace Ignition electrode overload Replace Burner control ambient temperature too high Insulate for heat, Max. 60 ° Ignition spark too weak Check the transformer Poor combustion Poor draught conditions Check the chimney Bentone...
  • Page 46 Flame at incorrect angle due to combustion head out of position Check the combustion head and readjust Condensation build up in boiler and chimney Flue gas temperature too low or gas volume too low Raise the flue gas temperature by increasing gas volume Insulate the chimney Bentone...

  • Page 47: Eu Declaration Of Conformity

    12. EU Declaration of conformity Bentone Gasburners 172 905 04 2018-02-15...

  • Page 48: General Instructions For Gasburners

    14. General instructions for gasburners 14.5.1 Installation Follow standards and instructions applicable to the Check that the burner is adapted to the gas quality in installation of gas burners question Ensure that the electric installation is made in accordance Check that the input pressure of the gas is correct with existing regulations Check that the dampers of the boiler are open Check that the fresh air intake of the boiler room is...
  • Page 49 Service- and inspection card Installation Boiler Name: Type: Efficiency kW: Address: Burner Type: Efficiency kW: Installed by: Date: Date gas/h Governor Fluegas Ionisation Pressure Efficiency temp current Fire Chimney room Measu- rement Before After °C µ A mbar mbar Small Flame Large Flame...
  • Page 52 Enertech AB. P.O Box 309, SE-341 26 Ljungby. www.bentone.se, www.bentone.com...

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