Page 1
178 076 74-6 P93783 2022-12-14 Providing sustainable energy solutions worldwide Installation- and maintenance instruction BG 400 M LME22.233C2 MB-VEF 412 Translation of the original instructions.
Page 2
1~230V 1,0A 50Hz IP 20 Motor supply MADE IN SWEDEN BY 1. Manualer på övriga språk 1. Manuals in other 1. Manualer på andre sprog languages 2. www.bentone.com\ 2. www.bentone.com\ nedladdning eller scanna 2. www.bentone.com\ download eller scan QR-koden. download or scan QR-code.
What to do if you smell gas ............5 Startup ....................19 Control of combustion ...............19 Technical data ...............6 5.5 Setting the air pressure switch ..........20 Dimensions BG 400-2 / BG 400 M..........6 5.6 Setting the gas pressure switch min ........21 Capacity range ................7 Setting Damper motor, Modulating operation .....22 Gas categories, approved gases ..........7 2.4...
Make sure that the burner is suitable for the application (see Technical • Data). All components must be installed without being bent, twisted or • subjected to mechanical or thermal forces that affect components. 172 515 01-2 2021-10-05 Bentone...
Prevent open fl ames or sparking, e.g. do not turn lights on or off, do • not use any electrical appliances or mobile phones. • Evacuate the building. Notify the installer or gas supplier of the problem so that it can be • rectifi ed. Bentone...
Operation in installations according to EN 303 and EN 676. • Fuels: Natural gas H, E, L, LL. • LPG, Butane and Propane. • Dimensions BG 400-2 / BG 400 M øC øB Flame tube Flame tube Flame tube Length of fl...
Gas quantity Gas quantity Max. at min. power at max. power connection connection pressure mbar pressure mbar BG 400-2 / BG 400 M G20 61 - 325 34.4 See data plate. G25 61 - 310 38.1 G30 61 - 340 10.5 G31 61 - 350 14.3...
Installation must be done so it does not prevent air supply to the burner. Working field G20 61-325 kW mbar G25 61-310 kW Do not exceed working field. G30 61-350 kW mbar G31 61-340 kW Bentone...
Air damper Ignition electrode Reset button Air intake Transformer Air pressure switch Gas pressure switch Ionization electrode Damper motor Ball valve Inner assembly Inner assembly adjustment Electrical panel Nozzle (not for town gas) Brake plate Fan wheel Flame cone Bentone...
Main valve, 2 -stage. In modulaing operation, this valve is equipped with controls for variable opening. Safety valve Valve proving system Air pressure switch Gas burner control Pos. 5b, 7: Components not required according to EN 676. Required over 1200 kW according to EN 676. 172 515 05 2018-01-02 Bentone...
Connection must be done in accordance with the applicable • regulations. • Connection must conform to the wiring diagram. If any electrical connection other than that recommended by Enertech is used, there is a risk of property damage and personal injury. 172 535 09-2 Bentone...
The cables of the safety system must be separated so that the outgoing signal is not placed in the same cable as the incoming signal. Wiring diagram Wiring diagram with continuous fan operation Grey Brown Blue Green White Orange Yellow Gn/Ye Green/Yellow Violet 172 615 22-3 2022-11-30 Black Bentone...
Postignition time 2.5 s Safety lockout time < 3 s Reset time after lockout < 1 s Reaction time on fl ame failure < 1 s Min. ionisation current at fl ame 5 µA Max. ionisation current 20 µA Bentone...
> 3 s code 4.4.3 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 15
To change to interface mode, press and hold the reset button longer than 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...
Gas nozzle Check that the ignition and ionization electrodes are correctly set before mounting on the boiler. Propan Natural gas Biogas (UV detector) 172 515 08-2 2022-11-28 Bentone...
If leaks are found during measurement, locate the source using soapy water or leak detection spray. After sealing: check the tightness of the gas fixture again. Check the gas tightness. Bentone...
32.25 116.09 Natural gas Butane 29.25 Propane 24.44 88.00 Natural gas Lower calorific value H at normal conditions 15 °C and 1013 mbar, EN 676. For exact calorific value of the gas, contact the gas distributor. 172 515 13-2 Bentone...
Check combustion using flue gas analysis instruments. Set the burner to about 20% excess air and check that good combustion is obtained. Check the actual gas flow on the gas meter to ensure that the correct input power is achieved. 172 515 10-2 2022-11-25 Bentone...
Measure and note the lowest air pressure in the entire work area. Set the air pressure switch to about 10-15% lower than the lowest noted pressure. Test run the burner and check the function in the entire work area. Refi t protective cover. 172 535 11-2 Bentone...
When the gas pressure switch stops the burner, the measured value must approximately correspond to the setting on the gas pressure switch. Open ball valve. Remove manometer and close measuring socket. Refi t protective cover. Check gas tightness. 172 535 12-2 Bentone...
• (increase). Adjust the amount of gas with screw V on the gas valve and check the combustion values. Solenoid valve High load (black) High load (red) Low load (orange) Closed air damper (blue) Release button 172 515 15-3 2022-11-25 Bentone...
It is possible to connect a leakage control VPS 504 and a gas pressure switch max. NB. The impulse line PBr can be replaced by an impulse fl ange on the gas valve. The impulse line PBr is then placed inside this fl ange. 172 515 16-2 2021-10-19 Bentone...
Page 24
– Impulse lines shall be as short as possible. 6.7.4 Adjustment possibilities ∆ Effective burner pressure ∆ P Effective fan pressure ∆ max. = 100 mbar ∆ ∆ P MB-VEF Adjustment range Adjustment range N=+2 ∆ pBr, min =0,5 mbar ∆ N=-2 , max. = 100 mbar Bentone...
Page 25
6.7.5 Pressure taps min. 5 x DN p , extern PN1, DN 4 1,3,4,5 G 1/8 screwed sealing plug 2 Measuring nozzle 6,7,8 G 1/8 female thread for pL ,pF ,pBr pulse lines 6.7.6 Electrical connection S 10/S 30 Bentone...
Replacement upon fault detection Gas pressure switch 250,000 starts 10 years Safety blow-off system 10 years Damper motor 500,000 starts Contactor 500,000 starts 10 years The burner and its components must be recycled according to applicable regulations. 172 615 88-2 2022-09-08 Bentone...
Turn on the main power and open the fuel supply. Start burner and check/adjust combustion. Check for leaks in the gas line. When servicing/replacing components that affect combustion, flue gas analysis and soot test shall be carried out on the installation. 172 615 01-2 Bentone...
Release the button on the damper motor. Switch on the main power and open the fuel supply. Start burner and check/adjust combustion. When servicing/replacing components that aff ect combustion, fl ue gas analysis and soot test must be carried out following installation. 165 405 16 Bentone...
Refi t the damper motor and mounting plate on the air intake. Connect the damper motor cable. Switch on the main power and open the fuel supply. Start burner and check/adjust combustion. 172 615 08-2 2022-11-24 Bentone...
Refi t the parts. Switch on the main power and open the fuel supply. Start burner and check/adjust combustion. When servicing/replacing components that aff ect combustion, fl ue gas analysis and soot test must be carried out following installation. 172 625 09 Bentone...
Switch on the main power and check the operation of the new component. Start burner and check/adjust combustion. When servicing/replacing components that affect combustion, flue gas analysis and soot test must be carried out following installation. 165 105 11-3 Bentone...
Check tightness of fasteners. Check fan wheel for damage and contamination (replace if necessary). • Check motor shaft and bearings. If they are worn, replace the motor. • Use the screw on the cover to attach the vibration sensor. 172 625 10 Bentone...
Min. DC 3 µA Required current to ensure detection Max. DC 20 µA Possible detection current Operational indicator lamp flashes green <5 µA DC Operational indicator lamp shines green >5 µA DC 7.9.1 Flame monitoring ionisation 172 615 02-3 Bentone...
Page 34
Max. current for flame detection Max. DC 5.5 µA Min. DC 40 µA Required current to ensure detection Max. DC 60 µA Possible detection current Operational indicator lamp flashes green <45 µA DC Operational indicator lamp shines green >45 µA DC Bentone...
Instruct the persons in charge of the operation on the service and • maintenance of the installation and what to do should any troubles occur. Inspection and service must be carried out by authorized personnel. • Review and service should be performed by authorised personnel only. 172 615 04-2 Bentone...
Voltage lower than 185V. Contact an electrician. Ignition electrodes disrupting ionisation current. Adjust ignition electrodes. Re-polarise the transformer. Poor earth connection. Ensure adequate earth connection. Phase and neutral swapped around. Check wiring diagram and change accordingly. 172 615 06 2018-01-10 Bentone...
Page 37
Flame at incorrect angle due to combustion head out of Check the combustion head and readjust. position. 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...
10. Service- and inspection protocol Installation Boiler Efficiency kW: Name: Type: Address: Burner Efficiency kW: Type: Installed by: Date: Date gas/h Efficiency Governor Fluegas Ionisation Pressure temp current Fire Chimney room Measure- °C µ A ment Before After mbar mbar Small Flame Large Flame...
Page 40
UK Declaration of conformity Bentone Gas Burners Type: BFG 1 BG 300 BG 550 BG 800 STG 120 BG 400 BG 650 BG 950 STG 146 BG 450 BG 700 This declaration of conformity is issued under the sole responsibility of the manufacturer.
Need help?
Do you have a question about the BG 400 M and is the answer not in the manual?
Questions and answers