Bentone BF 1 FUV RME Technical specifications

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Original translation of Installation- and maintenance instruction
178 152 35-1 2019-10–24
Installation- and maintenance instruction
BF 1 FUV
RME

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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 BF1
General
Table of contents
GENERAL
1. General Information_____________________________________________________4
General requirements RME__________________________________________6
Burner servicing schedule ___________________________________________7
Component replacement intervals________________________________7
Delivery check____________________________________________________________7
2. Technical data _____________________________________________________________8
1.1 Dimensions BF1_______________________________________________________8
2.1.1 Dimensions, flanges_______________________________________8
2.1.2 Electric Specification______________________________________8
2.1 Model BF1 FU/FUV 63-16_________________________________________9
2.1.1 Burner output/ Basic settings_________________________9
2.2 Recommended nozzles and pressures _____________________10
2.3 Nozzle table, 7-15 bar ____________________________________________10
2.3.1 Burner with preheater __________________________________ 10
2.4 Description____________________________________________________________11
2.4.1 Components_______________________________________________11
3. Installation ________________________________________________________________13
3.1 Delivery checks______________________________________________________13
3.2 Preparations for installation _____________________________________13
3.3 Oil supply ______________________________________________________________13
3.4 Electrical connection_______________________________________________13
3.5 Choice of nozzle ____________________________________________________13
3.6 Brake plate and airflow setting_________________________________13
3.7 Burner installation___________________________________________________ 14
3.7.1 Hole pattern________________________________________________ 14
3.7.2 Burner installation________________________________________ 14
3.7.3 Oil pipes_____________________________________________________ 14
3.7.4 Electrical connection____________________________________14
4. Basic settings ___________________________________________________________ 15
4.1 Example of basic setting _________________________________________15
4.1.1 Choice of nozzle__________________________________________ 15
4.1.2 Basic setting_______________________________________________ 15
4.1.3 Nozzle assembly adjustment ________________________16
4.1.4 Air intake adjustment ___________________________________ 16
4.1.5 Method of adjusting air quantity ____________________16
4.1.6 Inlet cone, air adjustment _____________________________16
4.1.7 Air intake rotation ________________________________________ 17
4.1.8 Air duct ______________________________________________________17
5. Burner servicing ________________________________________________________ 18
5.1 Warning ________________________________________________________________18
5.1.1 Service position___________________________________________ 18
5.1.2 Combustion assembly service ______________________19
5.1.3 Preheater replacement_________________________________ 20
5.1.4 Replacing the oil pump _______________________________21
5.1.5 Fan motor replacement________________________________22
5.1.6 Air intake and intake cone service _________________23
5.1.7 Fan wheel checks________________________________________23
5.1.8 Electrical module_________________________________________ 25
6. PUMP INSTRUCTIONS______________________________________________ 27
6.1 Suntec ANV47C_____________________________________________________ 27
6.1.1 Technical data ____________________________________________27
6.1.2 Components_______________________________________________27
6.1.3 Filter replacement________________________________________ 28
6.1.4 One-pipe system ________________________________________28
6.1.5 Two-pipe system _________________________________________ 28
6.1.6 Solenoid valve_____________________________________________28
6.1.7 Function ANV47C________________________________________29
6.1.8 Suction pipe tables ANV47C ________________________30
7. Preheater __________________________________________________________________31
7.1.1 Function FPHE 5 _________________________________________ 31
8. Replacement of electrical components______________________32
9. Electrical equipment LMO1..2..4.. ______________________________33
9.1 Wiring diagram ______________________________________________________33
9.1.1 Component list____________________________________________34
9.1.2 Function LMO1..2..4..__________________________________ 34
9.1.3 Technical data_____________________________________________ 35
9.1.4 Colour codes LMO14/24______________________________36
9.1.5 Fault codes LMO14/24 ________________________________36
10. Fault Location ___________________________________________________________ 37
10.1 Burner will not start ________________________________________________37
10.2 Burner will not start after normal use ________________________ 37
10.3 Delayed ignition______________________________________________________38
10.4 Noise in pump _______________________________________________________ 38
10.5 Pump pressure ______________________________________________________38
11. Log of flue gas analysis_____________________________________________ 39
12. Oil burners maintenance instructions ________________________ 40
13. DECLARATION OF CONFORMITY _____________________________41

4Bentone BF1
General
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.
• 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.
• The label information on the rating plate refers to the burner’s minimum
and maximum power.
• The power data on the type sign refers to the burner’s min. and max.
power.
• 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.
• Make sure when installing the equipment that there is enough space to
service the burner.
• Permitted ambient temperature during operation -0 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.
165 105 01

5Bentone BF1
General
• 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.
• Leak checks must be performed during installation and servicing to
prevent fuel 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
• After commissioning, if a steady red light on the burner control is
displayed, contact your installation technician.

6Bentone BF1
General
Detailed ecodesign information can be downloaded at:
www.bentone.com/ecodesign
General requirements RME
This is a burner designed for FAME, B-100 (RME). fuel. The fuel must
meet the requirements of standard EN 14214 for FAME. The equipment
on the burner is, however, of such a quality that it is possible to use EO1
type oil without modification, although with appropriate adjustments to the
combustion values after each change of fuel type.
The installation should be done in accordance with applicable standards,
general as well as local regulations. The installer of the burner must therefore
be aware of regulations regarding oil and combustion.
Only oil suitable for the burner must be used and then in combination with a
suitable oil filter designed for FAME, B-100 (RME).) and installed before the
burner’s oil pump.
If the burner is replacing an existing burner, ensure that the oil filter is
changed to a filter designed for FAME, B-100 (RME). Installation may only be
performed by qualified personnel.
Care should be taken by the installer to ensure that no electrical cables or oil/
gas pipelines are crushed or damaged during installation or servicing
Burners that run on FAME, B-100 (RME) fuel are and must be equipped with
parts designed for this fuel. This applies in particular to oil-related parts such
as the pump, solenoid valve, oil filter and hoses with fire-retardant sleeves.
Maintenance
The boiler/burner must be checked regularly for faults or leakage. Any boiler/
burner that uses FAME (RME) fuel must be serviced at least twice a year. It is
very important that worn parts are replaced at the time of servicing with new
parts of the same quality.
Oil hoses must be of high-quality fluoride rubber or PTFE intended for FAME,
B-100 (RME).
The hoses must be fitted with fire-retardant sleeves in order to satisfy
requirements according to EN-ISO 6806.

7Bentone BF1
General
Components Service life – Recommended
replacement
Service life – Recommended
replacement Operating cycles
Control system 10 years 250,000 cycles
Pressure switch 10 years 250,000 cycles
Flame guard 10 years 250,000 cycles
UV flame sensor 10000 hrs N/A
Damper motor 500 000 cycles
Contaktor 10 years 500,000 cycles
Gas valve with seal testing Replacement upon fault detection N/A
Gas pressure switch 10 years 250,000 cycles
Safety blow-off system 10 years N/A
Damper motor N/A 500,000 cycles
Contactor 10 years 500,000 cycles
Burner 2 year 3000 hrs
Filter 2 year change 3000 h Change
Oil hose 1 year change
Nozzle 2 year change 3000h Change
Electrods 2 Year Change /cleaning 3000h Change /cleaning
Brake plate 2 Year Change /cleaning 3000h Change /cleaning
Motor 2 year 3000 hrs
Cuppling chaft 2 year control/change 3000h control/change
Fan wheel “2 Year Change when dirty /
unbalance”
“3000h Change when dirty /
unbalance”
The burner and its components must be recycled according to applicable regulations.
Burner servicing schedule
Service is performed twice a year or after 3000 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.

8Bentone BF1
General
ø89
172
B
190
226
278
145
1.1 Dimensions BF1
2. Technical data
The burner is intended for:
• Light oil, B10 heating oil/biofuel blend, FAME, B-100 (RME) (as defined in DIN V51603-6)
and is used for:
• Water heating generators
• Hot air generators (these require LMO 24 255 C2E)
2.1.1 Dimensions, flanges
Flange 2
10,3
25
130–150
ø89,7
Flange 1
125–150
ø90 5
10,3
Type Motor Complete
burner
Sound
BF1 110W 0,9A 230V
50/60Hz 4µF 230V 1,74A 50Hz 70dBA ± 0,5 dBA
Max operating current, see data plate
2.1.2 Electric Specification
Burner correspond to IP 20

9Bentone BF1
General
ø63
ø67
ø16
7,0–8,0
1,6–2,0 (-0,1)+0,5
-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
Burner output, kW
Boiler overpressure, mbar
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
Burner output, kW
Scale
Air settings
Nozzle assembly
!Scale value applies to 0 mbar furnace pressure.
2.1 Model BF1 FU/FUV 63-16
2.1.1 Burner output/ Basic settings
1,3 - 4,6 kg/h
15 - 55 kW
Length of blast tube
Protrusion from flange,
measurement B
Flange
1 2
102 85 69
132 115 99

10 Bentone BF1
General
2.2 Recommended nozzles and pressures
Because of the different types of boiler in existence, with varying furnace
geometries and furnace loads, it is not possible to commit to any given spray
angle or spay pattern. Note that spray angles and spray patterns change
with pump pressures.
Nozzle 60° Solid/Hollow cone
80° Solid/Hollow conel
Pump pressure 10 bar (8–14 bar) Fuel oil 1
10 bar (7–12 bar) Kerosene
2.3 Nozzle table, 7-15 bar
2.3.1 Burner with preheater
Allow for a reduction in oil quantity of 5–20% with preheating owing to:
• Temperature increases at the nozzle.
• Nozzle design.
• Capacity (the higher the capacity the lower the difference).
Pump pressure, bar
The table applies to oils with a viscosity of 4.4 mm2/s (cSt) at a density of 830 kg/m3.
Gph 7 8 9 10 11 12 13 14 15
kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW kg/h kW
0,35 1,13 13 1,21 14 1,28 15 1,35 16 1,42 17 1,48 17 1,54 18 1,60 19 1,65 19
0,40 1,22 14 1,33 16 1,41 17 1,49 18 1,56 18 1,63 19 1,70 20 1,76 21 1,82 21
0,50 1,56 18 1,66 20 1,76 21 1,86 22 1,95 23 2,04 24 2,12 25 2,20 26 2,28 27
0,60 1,98 23 2,00 24 2,12 25 2,23 26 2,34 28 2,45 29 2,55 30 2,64 31 2,73 32
0,65 2,23 26 2,16 26 2,29 27 2,42 29 2,54 30 2,65 31 2,75 33 2,86 34 2,96 35
0,75 2,46 29 2,49 29 2,65 31 2,79 33 2,93 35 3,08 36 3,18 38 3,30 39 3,42 40
0,85 2,77 32 2,83 33 3,00 36 3,16 37 3,32 39 3,47 41 3,61 43 3,74 44 3,87 46
1,00 3,11 37 3,33 39 3,53 42 3,72 44 3,90 46 4,08 48 4,24 50 4,40 52 4,56 54
1,10 3,55 42 3,66 43 3,88 46 4,09 48 4,29 51 4,48 53 4,67 55 4,84 57 5,01 59
1,20 3,72 44 3,99 47 4,24 50 4,47 53 4,68 55 4,89 58 5,09 60 5,29 63 5,47 65
1,25 3,94 47 4,16 49 4,40 52 4,65 55 4,88 58 5,10 60 5,30 63 5,51 65 5,70 68
1,35 4,33 51 4,49 53 4,76 56 5,02 59 5,27 62 5,50 65 5,73 68 5,95 70 6,15 73
1,50 4,89 58 4,98 59 5,29 63 5,58 66 5,85 69 6,11 72 6,36 75 6,60 78 6,83 81
1,65 5,09 60 5,49 65 5,82 69 6,14 73 6,44 76 6,73 80 7,00 83 7,27 86 7,52 89
1,75 5,48 65 5,82 69 6,18 73 6,51 77 6,83 81 7,14 85 7,42 88 7,71 91 7,97 94
2,00 6,21 74 6,65 79 7,06 84 7,45 88 7,81 93 8,18 97 8,49 101 8,81 104 9,12 108
2,25 6,99 83 7,49 89 7,94 94 8,38 99 8,78 104 9,18 109 9,55 113 9,91 117 10,26 122
2,50 7,77 92 8,31 98 8,81 104 9,29 110 9,74 115 10,18 121 10,59 126 10,99 130 11, 3 8 135
2,75 8,78 104 9,39 111 9,96 118 10,50 124 11,01 131 11,50 136 11,97 142 12,42 147 12,86 152
3,00 9,71 115 10,38 123 11,00 130 11,60 137 12,17 144 12,71 151 13,23 157 13,73 163 14,21 168
4,00 11,88 141 12,70 150 13,47 160 14,20 168 14,89 176 15,56 184 16,19 192 16,80 199 17, 3 9 206

11Bentone BF1
General
23 4
7
1
10
5
6
8
9
2.4 Description
2.4.1 Components
1. Brake plate
2. Nozzle
3. Fan housing, front
4. Ignition transformer
5. Separating screw
6. Oil burner control
7. Electrical contact X3 (refer to wiring diagram)
8. Motor
9. Capacitor
10. Preheater, where fitted
11. Ignition electrode
12. Ignition cable
13. Photoresistor
14. Inspection glass
15. Nozzle assembly adjustment
16.
17. Blast tube
18. Grid
19. Solenoid valve
20. Oil pump
21. Air regulator
22. Air intake
23. Air flow indicator
24. Fan housing, rear

12 Bentone BF1
General
211 12 1
10
5
15
24
22
21
23
13
3
17
14
19
20

13Bentone BF1
General
3. Installation
3.1 Delivery checks
Check that everything has been delivered and that the goods are not
transport damaged. Any delivery faults must be reported to the supplier.
Transport damage must be reported to the forwarder.
3.2 Preparations for installation
Check that the burner’s measurements and capacity range is suitable for
the boiler in question. The power information on the data plate refers to the
burner’s max. and min. power.
3.3 Oil supply
In order to achieve good operational reliability it is important that the oil
supply system is laid out correctly.
Observe the following:
• Choice of pipe diameters, pipe lengths and height differences (refer to
pump instructions).
• Piping should be run with a minimum of joints/compression fittings.
• Pipework must be laid out so that oil hoses are not subjected to
tension or overbending when the burner is swung out or removed for
service.
• The oil filter should be installed so that the filter cartridge can easily be
replaced
3.4 Electrical connection
Before electrical installation is begun, electricity must be switched off at
the main switch. If the boiler has a 7-pole or a 4-pole Eurostecker (only on
2-stage burners), these often fit directly to the burner. Otherwise use the
connectors supplied. The operating thermostat, the max. thermostat and the
inspection hatch (where fitted) interlock can then be wired in series on the
incoming phase connected to L1 or connected between T1 and T2. In the
first mentioned case a jumper is installed between T1 and T2.
(Refer to connection in the section Electrical equipment).
3.5 Choice of nozzle
(Technical data): Recommended nozzle and nozzle table.
3.6 Brake plate and airflow setting
Before operations basic burner setting may be made according to the
diagram. (Refer to basic settings). Note that this only refers to the basic
setting; the setting must be adjusted after the burner has been started.
At this time flue gas analysis and soot measurement must be carried out.
!If any electrical connection is used other than that recommended
by Enertech, there may be a risk of equipment damage and personal injury.

14 Bentone BF1
General
E
Return Inlet
E
X1
X2
3.7 Burner installation
3.7.1 Hole pattern
Check that the hole pattern matches the flange supplied.
(Refer to Technical data.)
3.7.2 Burner installation
1. Install the flange and the gasket on the boiler.
2. Attach the front piece to the flange.
3. Insulate between the burner register and the boiler cover for reduced
heat radiation.
4. Install the selected nozzle. (Refer to Technical data.)
5. Install the brake plate and check the ignition electrodes (refer to Burner
service.).
6. Install the burner body to the front piece and lock with screw (E).
3.7.3 Oil pipes
1. Check the oil pipe dimensions. (Refer to Pump Instructions.)
2. The oil filter should be installed in the oil supply line. If an air separator is
fitted, the oil filter should be installed before the air filter to increase the
life span of the filter.
3. For one-pipe systems the return plug must be removed. (Refer to
Pump Instructions.)
4. When installing oil hoses, check that the supply and return hoses are
connected to the correct connections on the oil pump. The hoses
must be run so that they are not bent or tensioned.
5. Purge the oil system. The oil pump will be damaged if it is run dry.
6. The vacuum should not be lower than 0.3 bar depression in the suction
line at start up.
3.7.4 Electrical connection
If the boiler lacks ready-connected plugs, connect using the supplied plug,
X2 in accordance with the wiring diagram.
1. Disconnect the power at the main switch.
2. Wire the Eurostecker X2 as in alt. 1–3 (refer to Electrical equipment).
3. Connect the Eurostecker X2 to the burner.
4. Switch on the power at the main switch.

15Bentone BF1
General
4. Basic settings
4.1 Example of basic setting
4.1.1 Choice of nozzle
BF1 FU 63-16
Burner output 30 kW
Estimated nozzle output: 30 / 11,86* = 2,53 kg/h
Choice of nozzle according to table. (Refer to Technical data.)
According to the nozzle table, the following nozzle is indicated:
Nozzle: 0,65 Gph
Pump pressure: 11,0 bar
BF1 FU 63-16/FUV 63-16
Burner output 30 kW
Because of preheater, output is adjusted upward for choice of nozzle
according to table.
Estimated nozzle output: 30 x 1,06 = 31,8 kW
31,8 / 11,86* = 2,68 kg/h
Choice of nozzle according to table. (Refer to Technical data).
According to the nozzle table, the following nozzle is indicate
Nozzle: 0,75 Gph
Pump pressure: 9,5 bar
* Calorfic value Light oil = 11,86 kWh/kg
4.1.2 Basic setting
Setting values for 30 kW according to basic settings tables.
(Refer to Technical data FU 63-16).
Air setting = 11,0
Insert setting = 4,0

16 Bentone BF1
General
Ι
Π
M
4.1.3 Nozzle assembly adjustment
The burner is fitted with a regulator which changes the brake plate position
in the blast tube. This is used to set the correct pressure drop across the
combustion assembly and thereby achieve good combustion without
pulsation.
The setting to be chosen is dependent among other things on set output
and furnace pressure.
Brake plate setting
• Less diffusion: turn screw to left.
• More diffusion: turn to right.
Setting brake plate position affects air flow. It is therefore always
necessary to adjust the air with the burner air regulator afterwards.
4.1.4 Air intake adjustment
Air settings are very important for achieving good combustion with neither
too much, nor too little, air. Adjustment of combustion airflow is carried out
by turning the air regulator with an Allen key. How far open the air regulator
must be is determined by output, furnace pressure and other burner settings
such as blast tube position.
4.1.5 Method of adjusting air quantity
Setting the air regulator is dependent on how the screw (with which air
regulation is adjusted) is installed. If the air intake is installed underneath
as shown in illustration Ι, turning the screw clockwise will reduce airflow,
and anticlockwise increase it. If the air intake is installed on top as shown
in illustration Π, clockwise adjustment increases airflow, and anticlockwise
reduces it.
4.1.6 Inlet cone, air adjustment
Airflow is also affected by the position of the inlet cone. However, it is
extremely rare that this needs to be adjusted; it should be left in the
standard STD position to achieve good starts and operations. (A cast-in
arrow on the fan housing indicates the position of the inlet cone. In addition
to the scale on the inlet cone casting, there is also a mark (M) indicating the
factory setting.)

17Bentone BF1
General
D
4.1.7 Air intake rotation
It is possible to rotate the air intake to adapt the burner to different
surroundings. It is possible to rotate the air intake to a number of positions,
not just the positions shown to the left.
To rotate the air intake, undo the three screws that fasten the air intake and
the two screws which retain the pump. Then rotate the air intake to the
desired position and tighten the screws.The position of the air intake affects
the airflow through the burner somewhat.
The position which provides best airflow is with the air intake pointing
downwards.
4.1.8 Air duct
A hose connection air duct is available in three different dimensions: 48, 68,
and 78 mm outer diameter (D). The air duct is installed on the air intake at
the place where the grille is attached in the standard model

18 Bentone BF1
General
!
Warning
!When servicing or replacing components that affect combustion, analyses and soot tests must be carried
out on the installation.
5. Burner servicing
5.1 Warning
Service must be carried out after 3,000 operating hours, or at least once per
year.
Only authorized personnel may perform service.
Before any type of service work is begun, switch of the power at the main
switch and shut off the oil.
Exercise caution as parts which are exposed when the burner is taken apart
can be hotter than 60°C. The installation engineer must be especially careful
to ensure that no electrical wiring or oil lines are pinched or damaged during
installation or service.
5.1.1 Service position
5.1.1.1 Service position 1
1. Switch off the power at the main switch and disconnect the Eurostecker
from the burner.
2. Undo the screw which fastens the burner front piece to the fan housing,
but only so much as to allow the fan housing to be removed from the
burner front piece.
3. Remove the fan housing from the burner front piece and pull it
backwards until the combustion assembly is free of the burner front
piece.
4. Suspend the fan housing by the fan housing attachment point (for
joining the front piece to the fan housing) on the screw (for joining the
front piece to the fan housing) as illustrated to the left. If necessary,
tighten the screw somewhat to ensure that the burner is suspended
safely.något för att få brännaren att hänga säkrare.
5.1.1.2 Service position 2
1. Switch off the power at the main switch and disconnect the Eurostecker
from the burner.
2. Undo the screw which fastens the burner front piece to the fan housing,
but only so much as to allow the fan housing to be removed from the
burner front piece.
3. Remove the fan housing from the burner front piece and pull it
backwards until the combustion assembly is free of the burner front
piece.
4. Turn the screw into the front piece until there is a gap of approx. 5 mm
between the metal and the screw head.
5. Suspend the fan housing by the fan housing service attachment on
the screw used for joining the front piece to the fan housing, with the
motor upwards, as shown in the illustration to the left.

19Bentone BF1
General
!When servicing or replacing components that affect combustion, analyses and soot tests must be carried
out on the installation.
5.1.1.3 Service position 3
1. Switch off the power at the main switch and disconnect the Eurostecker
from the burner.
2. Undo the screw which fastens the burner front piece to the fan
housing, but only so much as to allow the fan housing to be removed
from the burner front piece.
3. Remove the fan housing from the burner front piece and pull it
backwards until the combustion assembly is free of the burner front
piece.
4. Turn the screw into the front piece until there is a gap of approx. 5 mm
between the metal and the screw head.
5. Suspend the fan housing by the fan housing service attachment on the
screw used for joining the front piece to the fan housing, with the air
intake upwards, as shown in the illustration to the left.
5.1.2 Combustion assembly service
1. Switch off the power at the main switch and disconnect the Eurostecker
from the burner.
2. If so desired, service position 1 may be used.
3. Carry out a visual inspection of the combustion assembly and check
the various parts for defects.
4. Undo and remove the brake plate and the electrode package from the
oil pipe. Clean the brake plate as necessary.
5. Screw off the nozzle.
6. Install the nozzle. The nozzle may not be cleaned; it must be replaced
with a new nozzle if the existing one is considered defective.
7. Check the ignition electrodes. Replace as necessary (refer to Technical
data for electrode settings).
8. Install the brake plate and electrode package. Check that the distance
between the nozzle and brake plate is correct
(refer to Technical data).
9. Undo the screw that the fan housing is suspended from. Reassemble
the front piece and the fan housing and fasten them together.
10. Connect the Eurostecker and switch on the power at the main switch.
11. Start the burner and check the combustion.

20 Bentone BF1
General
!When servicing or replacing components that affect combustion, analyses and soot tests must be carried
out on the installation.
5.1.3 Preheater replacement
1. Switch off the power at the main switch and disconnect the Eurostecker
from the burner.
2. If so desired, service position 1 may be used.
3. Remove the brake plate and electrode package.
4. Disconnect the preheater cable from the preheater.
5. Screw off the nozzle.
6. Undo the nut that connects the oil pipe to the preheater.
7. Install the new preheater. Check the condition of the O-ring; replace
as necessary.
8. Connect the preheater cable.
9. Install the nozzle.
10. Install the brake plate and electrode package. Check that the distance
between the nozzle and brake plate is correct
(refer to Technical data).
11. Re-assemble the burner.
12. Connect the Eurostecker and switch on the power at the main switch.
13. Start the burner and check the combustion.