Contents 1. DESCRIPTION .........................6 1.1 Components ............................6 1.1 Components ............................7 1.2 Warning ..............................8 1.2.1 Safety directions ............................8 1.2.2 Acceptance inspection..........................8 1.2.3 Preparations for installation ......................... 8 2. TECHNICAL DATA ......................9 2.1 Type designation BG950 ........................9 2.2 Dimensions ............................9 2.3 Out range ..............................9 2.4 Capacity chart according to EN 676 .....................
Page 5
12. GENERAL INSTRUCTION ..................28 12.1 Flame monitoring and measurement of ionisation current ..............28 12.2 UV-detector ............................28 12.3 Adjustment of air pressure switch ...................... 29 12.4 Adjustment of min. gas pressure switch ....................29 12.5 Adjustment of max. gas pressure switch ...................29 12.6 Gas pressure switch, air pressure switch ..................29 13.
1. DESCRIPTION 1.1 Components 26 14 Guide bar Electric panel Fan house 10. Motor 11. Connection gas ittings 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.
1. DESCRIPTION 1.2 Warning Read the manual before assembling or commissioning. The contents of this manual are to be observed by all who work for any reason on the unit and its appertaining system parts. This manual is intended especially for authorised personnel. Warning This manual is to be regarded as part of the burner and shall always be available near the place of installation.
2. TECHNICAL DATA 2.1 Type designation BG950 2.2 Dimensions øC 1027 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.
De par sa conformité aux normes et directives mentionnées ci- direktiv erhåller brännaren CE - märkningen. dessus, le brûleur recevra le marquage CE de conformité. Enertech AB Bentone Division is quality certifi ed according Ljungby, Sweden, 141127 (27/11/14) to SS-EN ISO 9001 ENERTECH AB Bentone Division Enertech AB Bentone Division är kvalitetscertifi...
8. Air damper motor 9. Air pressure switch 10. Gas burner control Pos. 5b, 7: Components not required according to EN 676. Required over 1200 kW according to EN 676. When Bio gas is used, Bentone shall always be contacted Warning...
4. MOUNTING OF THE BURNER To facilitate the mounting of the boiler the burner head with gas lange 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.
5. ELECTRIC EQUIPMENT 5.2 List of components with Ionization electrode A1 Gas burner control S8 Air pressure switch A2 Power control S10 Gas pressure switch, max. A3 Valve, leak tester, S11 Change-over switch, Aut.-man. Dungs VPS504 S12 Change-over switch, B1 Ionization electrode Increase-Reduce F1 Operation fuse S15 Control thermostat, 3-pole...
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: ◄...
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 ig.).
7. DETERMINATION OF GAS VOLUME FOR THE INSTALLATION Speciications on natural gas, town gas and biogas vary. For more exact information please contact the gas distributor. Net caloriic value H 15°C/1013,25 mbar MJ/Nm Gas quality kWh/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...
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.
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)
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.
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.
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.
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 , (advisable to ind out - Connect a pressure gauge for measur-ing P if the valves are open) - Set the switch in position MAN.
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 lue gas temperatures, average water temperature and CO or O...
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 lame electrode in the burner head.
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 insuficient 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.
Differential pressure sensor Release signal 13.4 Electrical connection VPS 504 Series 02 The VPS 504 is connected in series between the temperature regulator and the control box via a 7-pole plug connector. See the Bentone wiring diagram. tight untight Lock-out Operation...
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.
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 low 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 34
15. FAULT LOCATION GUIDE Cause Remedy No lame 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 35
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 lue gas side is blocked Check the chimney lue Pulsations during operation The burner is not correctly Re-adjust adjusted...
Page 37
GENERAL INSTRUCTIONS FOR GASBURNERS Installation Check that the input pressure of the gas is correct Follow standards and instructions applicable to the installation of gas burners Check that the dampers of the boiler are open Ensure that the electric installation is made in Check that there is water in the system accordance with existing regulations Check that thermostats etc.
Page 38
SERVICE AND INSPECTION CARD Installation Boiler Name: Type: Effi ciency kW: Address: Burner Type: Effi ciency kW: Installed by: Date: Date Flue gas Ionisa- gas/h Governor Pressure Effi ciency temp tion current Fire room Chimney Measure- Before After °C µ A mbar mbar % ment...
Need help?
Do you have a question about the BG 950 and is the answer not in the manual?
Questions and answers