Bentone BFG1 H1 Technical specifications

Providing sustainable energy solutions worldwide
CR00249 178 051 35-7 2021-02-01
Installation- and maintenance instruction
BFG 1
Translation of the original instructions.

2Bentone
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352011030141
Designation
Type
Model
Serial no.
Motor supply
Main supply
MADE IN SWEDEN BY
LIGHT OIL 35-90kW 1,25-6,0 cSt 7-14bar
BF 1 KS 76-24
BF 1
BF 1 KS 76-24
1234567
1~230V 1,0A 50Hz IP 20
Man.Year 2019
Cap. Min-Max
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3Bentone
General
Table of contents
1. General Information __________________________________ 4
2. Technical data BFG 1 _________________________________ 7
2.1 Burners are intended for use at: _____________________ 7
2.2 Dimensions ______________________________________ 7
2.3 Capacity range BFG 1 H1, BFG 1 H2 and BFG 1 H3 ___ 8
2.3.1 Gas categories, approved gases ________________ 9
2.3.2 Electric Specification EN 60335-2-102 ___________ 9
2.4 Model BFG 1 H1_________________________________ 10
2.4.1 Burner output/Basic settings __________________ 10
2.5 Model BFG 1 H2_________________________________ 11
2.5.1 Burner output/Basic settings __________________ 11
2.6 Model BFG 1 H3_________________________________ 12
2.6.1 Burner output/Basic settings __________________ 12
2.7 Description______________________________________ 13
2.7.1 Components________________________________ 14
3. Installation _________________________________________ 15
3.1 Skeleton diagram ________________________________ 15
3.2 Delivery check ___________________________________ 16
3.3 Preparations for installation________________________ 16
3.4 Gas supply______________________________________ 16
3.5 Electric connection _______________________________ 16
3.6 Setting brake plate and air flow_____________________ 16
3.7 Burner installation ________________________________ 17
3.7.1 Hole pattern ________________________________ 17
3.7.2 Burner installation____________________________ 17
3.7.3 Gas connections ____________________________ 17
3.7.4 Electric connection___________________________ 17
3.8 Control measures ________________________________ 18
3.8.1 Gas quality _________________________________ 18
3.8.2 Bleeding ___________________________________ 18
3.8.3 Function test________________________________ 18
3.8.4 Leakage testing _____________________________ 18
4. Basic Settings ______________________________________ 19
4.1 Recommended excess air when using default setting __ 19
4.2 Determining the gas quantity for the system __________ 19
4.3 Example of how to calculate the gas quantity (natural gas G20):
20
4.4 Calculating the quantity of gas supplied _____________ 21
4.4.1 Nozzle assembly adjustment __________________ 22
4.4.2 Air intake adjustment _________________________ 22
4.4.3 Air quantity setting procedure__________________ 22
4.4.4 Inlet cone, air control _________________________ 23
4.4.5 Rotation of air intake _________________________ 23
4.4.6 Air duct ____________________________________ 23
5. Burner service ______________________________________ 24
5.1 Service _________________________________________ 24
5.1.1 Combustion device service____________________ 24
5.1.2 Fan motor replacement _______________________ 25
5.1.3 Air intake and inlet cone service ________________ 26
5.1.4 Fan wheel check ____________________________ 26
5.1.5 Fan wheel service____________________________ 27
5.1.6 Electrical package ___________________________ 28
6. Multiblock __________________________________________ 30
6.1 GB-LD055 D01... ________________________________ 30
6.1.1 Setting multiblock, GB-LD055 D01... ___________ 31
6.2 MBC-65-DLE-S20 _______________________________ 32
6.2.1 Setting multiblock, MBC-65-DLE-S20 __________ 33
6.3 MBC-120-DLE-S20 ______________________________ 34
6.3.1 Setting multiblock, MBC-120-DLE-S20 _________ 35
6.4 Multiblock MB-DLE 403___________________________ 37
6.5 MB-DLE BO1, 405 - 420 __________________________ 39
7. General instructions _________________________________ 42
7.1 Flame monitoring and ionisation current check________ 42
7.1.1 Flame monitoring ionisation ___________________ 42
7.1.2 UV –detector (QRC) __________________________ 42
7.1.3 Flame monitoring UV-detector (QRC) ___________ 42
7.2 Setting the air pressure switch _____________________ 43
7.3 Setting the min. gas pressure switch ________________ 44
7.4 Handing over of the installation _____________________ 45
8. Electrical equipment_________________________________ 46
8.1 Safety system ___________________________________ 46
8.2 Wiring diagram __________________________________ 47
8.2.2 Function LME... _____________________________ 48
8.2.1 List of components __________________________ 48
8.3 Control program at faults; fault mode indicator LME .... 49
8.3.1 Colour codes _______________________________ 49
9. Troubleshooting_____________________________________ 51
10. General instructions for gasburners_________________ 55
10.3.1 Installation __________________________________ 55
10.3.2 Maintenance ________________________________ 55
10.3.3 If the burner has stopped _____________________ 55
10.3.4 Shut-Off____________________________________ 55
10.3.5 Warning ____________________________________ 55

4Bentone
1. General Information
This Installation and Maintenance manual:
• is to be regarded as part of the burner and must always be kept near
the installation site.
• is intended for use by authorised personnel.
• must be read prior to installation.
• must be observed by all who work with the burner and associated
system components.
• work with the burner may only be carried out by certified installers/
personnel.
Enertech AB is not liable for any typographical errors and reserves the right
to make design changes without prior notice.
Safety instructions
• The burner may only be used for its intended purpose in accordance
with the product’s technical data.
• The burner may only be installed and operated by authorised
personnel.
• The product is packaged to prevent damage from occurring during
handling. Handle the product with care. Lifting equipment must be
used to lift larger packages.
• The products must be transported/stored on a level surface in a dry
environment, max. 80% relative humidity, no condensation.
Temperature -20 to +60 °C.
• Check that the burner is compatible with the boiler’s output range.
• All components must be installed without being bent, twisted or
subjected to mechanical or thermal forces which can affect the
components.
• The burner must be installed so that it complies with local regulations
for fire safety, electrical safety, and fuel distribution.
• The gas outlet from the pressure regulator shall be configured in
accordance with applicable regulations and lead to a safe area.
• Make sure when installing the equipment that there is enough space to
service the burner.
• Permitted temperature during operation -10 to +60 °C. Max 80%
relative humidity, no condensation.
• The installer must ensure that the room has adequate air supply.
• The room must comply with local regulations pertaining to its intended
use.
• The installation site must be free of chemicals.
• 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

5Bentone
• The electrical installation must be professionally carried out in
accordance with applicable high voltage regulations, as per Enertech’s
recommendations.
• Before servicing, shut off the fuel supply and turn off the power to the
burner.
• Seal inspections must be performed during installation and servicing to
prevent gas leakage.
• Care should be taken by the installer to ensure that no electrical cables
or fuel lines are crushed or otherwise damaged during installation or
servicing.
• If the boiler is equipped with an access hatch, this must be equipped
with a hatch opening switch connected to the burner's safety system.
• When in operation, the burner’s noise level can exceed 85 dBA.
Use hearing protection.
• The burner must not be put into operation without proper safety and
protection devices.
• A Class BE fire extinguisher is recommended.
• It is forbidden to alter thedesign or use accessories which have not
been approved by Enertech in writing.
• Prior to operation, the following points must be checked:
-fitting and installation work has been completed and approved
-electrical installation has been correctly performed
-flue gas ducts and combustion air ducts are not blocked
-all actuators and control and safety devices are in working order and
correctly set
Actions to take if you smell gas
Turn off the equipment and the boiler. Open windows and doors. Prevent
open flames or sparking, e.g. do not turn lights on or off, do not use any
electrical appliances, do not use mobile phones. 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.

6Bentone
Control system 10 years 250 000 starts
Valve control system 10 years 250 000 starts
Pressure switch 10 years 250 000 starts
Ignition system with flame guard 10 years 250 000 starts
UV flame sensor 10 000 hrs N/A
Gas pressure regulators 15 years N/A
Gas valve without seal testing 10 years 250 000 starts
Gas valve with seal testing Replacement upon fault detection N/A
Gas pressure switch 10 years 250 000 starts
Safety blow-off system 10 years N/A
Damper motor N/A 500 000 starts
Contactor 10 years 500 000 starts
Burner 1 year 3 000 hrs
Inspection of electrical installation 1 year 3 000 hrs
Leakage check 1 year 3 000 hrs
Filter 1 year replacement at Δp>10 mbar 3 000 hrs replacement at
Δp>10 mbar
Electrodes Replacement/Cleaning 1 year Replacement/Cleaning 3 000 hrs
Brake disc Replacement/Cleaning 1 year Replacement/Cleaning 3 000 hrs
Motor 1 year 3 000 hrs
Fan wheel 1 Year
Replacement when cleaning
needed/imbalance
3 000 hrs
Replacement when cleaning
needed/imbalance
The burner and its components must be recycled according to applicable regulations.
Burner servicing schedule
Servicing must be carried out once a year or after 3 000 hours of operation.
Component replacement intervals
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.

7Bentone BFG1
135
286 195
186 35 195
B
A
ø89,7 17
130-150
10,3
ø90 5
125-150
10,3
145
109,5
10
23,5
2. Technical data BFG 1
2.1 Burners are intended for use at:
• Hot water boilers in intermittent operation.
2.2 Dimensions
The above-mentioned measurements are maximum measurements. They can vary, depending on which components
are used.
Flange 1
BFG 1 H1 and BFG1 H2
Flange 2
BFG 1 H1 and BFG1 H2
Flange 3
BFG 1 H3
172 525 25

8Bentone BFG1
kWh/Nm3MJ/Nm3kcal/Nm3
G20 9.5 34.02 8126
G25 8.2 29.25 6986
G30 32.5 116.09 27728
G31 24.6 88.00 21019
2.3 Capacity range BFG 1 H1, BFG 1 H2 and BFG 1 H3
Capacity Gas quantity
at min. power
Nm3/h 1)
Gas quantity
at max. power
Nm3/h 1)
BFG 1 H1 15 - 60 kW
G 20 1,59 6,35
G 25 1,86 7,44
G 30 0,47 1,86
G 31 0,61 2,45
BFG 1 H2 15 - 65 kW
G 20 1,59 6,88
G 25 1,86 8,06
G 30 0,47 2,02
G 31 0,61 2,66
BFG 1 H3 25 - 100 kW
G 20 2,65 10,58
G 25 3,10 12,41
G 30 0,75 3,10
G 31 1,02 4,09
MB-Block Max. connection
pressure mbar
Min connection
pressure mbar
GB-LD 055 65
See data plate
MBC 65 200
MBC 120 360
MB 403 200
MB 405 360
MB 407 360
Lower heat value Hu at normal state 15°C and 1013.25 mbar EN676
Grade of gas
Natural gas
Natural gas
Butane
Propane
Gas quantity and capacity vary according to grade of gas and connection
pressure.

9Bentone BFG1
Measurements according to EN 3746: 2010
Alt.1 The sound level of the burner can be reduced by equipping the burner
with silencer. Installation must be done so it does not prevent air supply
to the burner.
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.
2.3.1 Gas categories, approved gases
Only dry gas is permitted for use
Gerätekategorien
Appliance categories
Versorgungsdrücke
Supply pressure
Bestimmungsländer
Countries of destination
II2R/3R 20 mBar AT, BE, BG, CH, CZ, CY, DE,
DK, EE, ES, FI, FR, GB, GR, HR,
HU, IE, IS, IT, LT, LU, LV, MK,
MT, NL, NO, PL, PT, RO, RS,
SE, SI, SK, TR
II2H38/P 20 mBar AT, CH, CY, DK, FI, LT, RO, SE,
SK
II2H3P 20 mBar GB, IE
II2L38/P 20 mBar NL, RO
II2E38/P 20 mBar PL
II2E(R)B 20 mBar BE
I3P 20 mBar BE
Burner correspond to IP20
2.3.2 Electric Specification EN 60335-2-102
Type BFG 1
Motor 110W, 0,9A, 230V, 50Hz,
2700Rpm
The recommended main fuse
motor 6,3A
Control power 1~230V 1,0A
Sound 79 dBA ± 0,5 dBA

10 Bentone BFG1
!Scale value valid at 0 mbar in furnace pressure.
Pressure in the furnace mbar
Burner output kW
Scale
Burner output kW
ø89
9,5-10,5
2,5-3,0
7,0-8,0
0,0-2,0
-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
10 20 30 40 50 60 0,0
2,0
4,0
6,0
8,0
10,0
12,0
14,0
16,0
18,0
15 20 25 30 35 40 45 50 55 60
Air setting
Nozzle assembly setting
2.4 Model BFG 1 H1
2.4.1 Burner output/Basic settings
15 - 60 kW
Blast tube length
mm
Blast tube
Dimension A mm
Flange
Dimension B ø
108 79 90
140 111 90
The above-mentioned measurements are maximum measurements. They
can vary, depending on which components are used.
!Do not exceed working field.
Natural gas LPG

11Bentone BFG1
!Scale value valid at 0 mbar in furnace pressure.
Pressure in the furnace mbar
Burner output kW
Scale
Burner output kW
7,0-8,0
0,0-2,0
2,5-3,0
9,5-10,5
ø89
-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
10 15 20 25 30 35 40 45 50 55 60 65 70
0,0
2,0
4,0
6,0
8,0
10,0
12,0
14,0
16,0
18,0
20,0
22,0
15 20 25 30 35 40 45 50 55 60 65
Natural gas LPG
Air setting
Nozzle assembly setting
2.5 Model BFG 1 H2
Blast tube length
mm
Blast tube
Dimension A mm
Flange
Dimension B ø
115 86 90
147 118 90
The above-mentioned measurements are maximum measurements. They
can vary, depending on which components are used.
2.5.1 Burner output/Basic settings
15 - 65 kW !Do not exceed working field.

12 Bentone BFG1
!Scale value valid at 0 mbar in furnace pressure.
Pressure in the furnace mbar
Burner output kW Burner output kW
Scale
29,0-31,0
16,0-71,0
ø103
2,5-3,5
7,5-8,5
-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
20 30 40 50 60 70 80 90 100
0
2
4
6
8
10
12
14
16
18
20
22
24
25 35 45 55 65 75 85 95
Natural gas LPG
Air setting
Nozzle assembly setting
2.6 Model BFG 1 H3
Blast tube length
mm
Blast tube
Dimension A mm
Flange
Dimension B ø
145 120 110
245 220 110
The above-mentioned measurements are maximum measurements. They
can vary, depending on which components are used.
2.6.1 Burner output/Basic settings
25 - 100 kW !Do not exceed working field.

13Bentone BFG1
4
3
5
1
6
2
10
16
9
15
14
13
7
8
22
11
12
2.7 Description

14 Bentone BFG1
18
20
19
17
21
2.7.1 Components
1. Blast tube
2. Gas pressure switch
3. Connection multiblock
4. Ignition transformer
5. Motor
6. Capacitor
7. Multiblock
8. Air pressure switch
9. Test point for the air pressure switch on the low-pressure side
10. Air intake
11. Air regulation
12. Electric connection
13. Gas burner control
14. Reset button
15. Nozzle assembly adjustment
16. Screw for division of burner in front and rear part
17. Nozzle assembly
18. Brake plate
19. Ignition electrode
20. Ionisation electrode
21. Nozzle
22. Air flow indicator (indicates the air setting)

15Bentone BFG1
Incorporated in the multiblock
172 525 26
3. Installation
3.1 Skeleton diagram
1. Ball valve
2. Filter
3. Pressure regulator
4. Outlet for gas pressure measuring
5a. Gas pressure switch, min.
5b. Gas pressure switch, max.
6a. Main valve
6b. Safety valve
7. 1) Leakage control
9. Air pressure switch
10. Gas burner control
Pos. 5b: Components not required acc. to EN 676.
1) Required above 1200 kW acc. to EN 676.

16 Bentone BFG1
3.2 Delivery check
Check that all has been delivered and that the goods have not been
damaged during transport. If that is not the case, please notify the delivery
company. Transport damages should be reported to the forwarding agency.
3.3 Preparations for installation
Check that the measurements and capacity range of the burner are
compatible with the boiler. The power ratings on the type plate refer to the
min. and max. power of the burner.
3.4 Gas supply
For good operating safety, it is important that the gas supply system is
installed correctly.
Consider the following:
1. Check that the burner is approved for the gas quality of the installation.
If not, please contact the supplier.
2. Check that the gas components of the burner are approved for
indicated gas pressure.
3. The gas supply system should be installed in accordance with current
standards.
4. Pipe lines should be run so that service on boiler and burner is
facilitated.
5. Pipe lines should be run so that eventual contaminants cannot come
into contact with the gas components.
3.5 Electric connection
Before starting the electric installation, the main switch must be turned off.
If the boiler has a 7-pole and a 4-pole Eurostecker connector, these usually
fit directly to the burner. If not, use the connectors included, (see connection
under Electric equipment)
3.6 Setting brake plate and air flow
Before the placing into service, the burner should be initially set according to
diagram, (see Basic settings). Note that it is only a basic setting which should
be adjusted once the burner has been started.
!If an electric connection other than the one re commended by Enertech is used, a
risk of damage and injury can arise.

17Bentone BFG1
E
F
X1
X2
3.7 Burner installation
3.7.1 Hole pattern
Check that the hole pattern on the boiler matches that of the flange, (see
Technical data).
3.7.2 Burner installation
1. Install the flange with gasket on the boiler.
2. Insulate between the blast tube and the boiler door to minimize heat
radiation.
3. Check the ignition electrode and ionisation electrode.
(Refer to Technical data).
4. Install the burner on the boiler and lock into the flange (E).
5. Install the gas line on the burner. Check that the O-ring has not been
damaged during installation, fasten with the screws (F).
6. Where support for the multiblock is included, this should be installed.
3.7.3 Gas connections
1. Check the gas pipe dimensions. (According to local regulations).
2. Connect the gas pipe to the gas flange of the multiblock.
3. A manual gas valve should be installed in the vicinity of the burner.
4. No mechanical stresses/forces should exist in the gas connection.
5. Check the sealing of the gas connections, including the multiblock and
flanges.
NOTE!
If the gas connection is via a hose, the support for the multiblock that is
supplied with the burner should be mounted (F). Install the support so that
the underneath of the multiblock rests on it.
3.7.4 Electric connection
If the boiler does not have a pre-wired connector, connect in the included
connector, X2 according to the wiring diagram.
1. Turn off the main switch.
2. Connect the Eurostecker X2 acc. to Alt. 1 - 3, (see Electric equipment).
3. Install the Eurostecker X2 on the burner.
4. Turn on the main switch.

18 Bentone BFG1
3.8 Control measures
3.8.1 Gas quality
Check that the combustion head is intended for the gas quality to be used,
(see Technical data).
3.8.2 Bleeding
Bleeding of the gas pipe can be achieved by removing the screw on the test
nipple for the inlet pressure. Connect a plastic hose and lead out the gas into
nature. When the bleeding in completed, don’t forget to install the screw
in the test nipple again.
3.8.3 Function test
The electric function test can be done as follows:
When connecting to the mains, check that the phase and zero are not
switched. The gas tap should be closed. To prevent the gas pressure switch
from blocking, it should be bridged temporarily.
After the main switch has been turned on and the max. and control
thermostats have been set, the prepurging period lasts for 30-35 secs. After
this, the pre-ignition is started (0.5-2.5 secs. depending on the design of
the gas burner control). The ignition spark should then be able to operate
faultlessly at the required quantity of air for combustion. The gas valve is
energized and opens. After the end of the safety period (2-3 secs.), the gas
burner control blocks.
The solenoid valve and motor become de-energized. Remove the bridge
after completed testing.
Check that no safety functions are disconnected before placing the burner
into service.
3.8.4 Leakage testing
When leakage testing the gas fittings with test points between the valves, the
solenoid valve should be closed. A pressure gauge should be connected to
the test nipple Pa. The test pressure in the fittings should be 1.5 x max inlet
pressure or min. 150 mbar. If leakage is observed when measuring, localise
the leaking site with soapy water or leak detection spray. After sealing, leak
test the fittings again. After completed trimming, all joints, branching points
and outlets on the gas line should be tested for leaks.

19Bentone
Lower heat value HU at normal state 15°C and 1013.25 mbar EN676
Grade of gas kWh/Nm3 MJ/Nm3 kcal/Nm3
Natural gas G20 9.5 34.02 8126
Natural gas G25 8.2 29.25 6986
Butane G30 32.5 116.09 27728
Propane G31 24.6 88.00 21019
4.1 Recommended excess air when
using default setting
Grade of gas Excess air flue gases Max. % CO2
% O2% CO2Lambda 1.2
Natural gas 3–5 ≈10 11.9
Propane 3–5 ≈11.5 13.9
Butane 3–5 ≈11,5 14,1
Liquefied petroleum
gas (LPG) 3–5 ≈11 13,8
4.2 Determining the gas quantity for
the system
The heat values indicated are normal values; the heat value varies according
to the origin of the gas. For more exact information on values, contact the
gas distributor.
172 525 27
4. Basic Settings

20 Bentone
T = Temperature of gas at the gas meter [°C]
B = Barometer reading [mbar]
P = Pressure of gas at the gas meter [mbar]
f = Factor calculated for multiplication with flow in Nm3/h to
arrive at actual flow in Nm3/h.
V = Actual flow [m3/h]
f = 273 ·B+P
273+T 1013.25
Example A
V0A
= Q .3600 =50 · 3600 ≈ 5.9 Nm3/h
Hu· η34020 · 0.90
Example B
V0B
= Q ≈50 ≈ 5.8 Nm3/h
Hu· η9.5 · 0.90
Example C
V 0C
=Q=50 ≈ 5.9 Nm3/h
Hu· 0,00116 · η8126 · 0.00116 · 0.90
If the barometer reading (altitude), pressure and temperature of the gas
deviate significantly from normal values, this must be taken into account as
follows:
Calculation example:
Q = 50 kW
HU= Example A: 34020 MJ/Nm3
Example B: 9.5 kWh/Nm3
Example C: 8126 kcal/Nm3
η = 90%
V0= Desired quantity of gas [Nm3/h]
Q = Boiler output [kW]
HU= Gas heat value [kWh/Nm3] or [MJ/Nm3] or [kcal/
Nm3]
η=Boiler efficiency [%]
4.3 Example of how to calculate the
gas quantity (natural gas G20):