Bentone B 55-2 Technical specifications

Providing sustainable energy solutions worldwide
178 072 66-4 P93783 2023-02-07
Installation- and maintenance instruction
B 55-2
LMO24.255C2E
RSA 95
Translation of the original instructions.

2Bentone
example Beispielexempel
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
3
?
1
-sv
1. Manualer på övriga språk
2. www.bentone.com\
nedladdning eller scanna
QR-koden.
3. Skriv in brännarens
artikelnummer som  nns på
din typskylt (se bild) och välj
ditt språk.
Detaljerad ecodesign
information kan laddas ner
på: www.bentone.com/
ecodesign.
-en
1. Manuals in other languages
2. www.bentone.com\download
or scan QR-code.
3. Enter the burner`s article
number on your data plate (see
picture) and select language.
Detailed ecodesign information
can be downloaded at:
www.bentone.com/ecodesign.
-da
1. Manualer på andre sprog
2. www.bentone.com\
download eller scan
QR-koden.
3. Indtast brænderens
artikelnummer, der  ndes
på typeskiltet (se billede), og
vælg dit sprog.
Detaljerede oplysninger om
ecodesign kan downloades
på: www.bentone.com/
ecodesign.
-fr
1. Manuels dans d’autres
langues
2. www.bentone.com\
download ou scannez le
code QR.
3. Saisir le numéro d’article
du brûleur sur votre plaque
signalétique (consultez
l’illustration) et sélectionnez
la langue.
Des informations détaillées
sur l’écodesign peuvent être
téléchargées à l’adresse:
www.bentone.com/
ecodesign.
-de
1. Gebrauchsanweisungen in
anderen Sprachen
2. www.bentone.com\download
oder scannen Sie den QR-Code.
3. Geben Sie die Artikelnummer
des Brenners auf Ihrem
Typenschild ein, (siehe Bild)
und wählen Sie die Sprache
aus.
Detaillierte Informationen zum
Ecodesign können unter
www.bentone.com/ecodesign
heruntergeladen werden.
2

3Bentone
Table of contents
1. General Information............................................................4
1.1 Delivery inspection........................................................................ 4
1.2 Safety ............................................................................................... 4
2. Technical data.......................................................................6
2.1 Dimensions B 55-2........................................................................ 6
2.2 Burner installation ........................................................................ 6
2.3 Workingeld.................................................................................. 7
2.4 Settingfornozzleassemblyandairdamper ......................... 7
2.6 Settingofignitionelectrodesandbrakeplate ....................... 8
2.7 Nozzleandpumppressure......................................................... 8
2.5 Technicalspecication ................................................................. 8
2.8 Nozzle table.................................................................................... 9
2.9 Components................................................................................. 11
3. Electric equipment.............................................................12
3.1 Safety system .............................................................................. 12
3.2 Wiringdiagram.......................................................................... 12
3.3 Function ........................................................................................ 13
3.4 Colourcodes................................................................................ 14
3.5 Faultcodes ................................................................................... 14
4. Installation..........................................................................15
4.1 General instructions................................................................... 15
4.2 Inspectionandmaintenance.................................................... 15
4.3 Start-up ......................................................................................... 15
4.4 Preparing for installation........................................................... 15
4.5 Oildistribution............................................................................. 15
4.6 Electrical connection .................................................................. 16
4.7 Handlingandliftinginstruction ............................................... 17
5. Mounting ............................................................................18
5.1 Check oil line seals...................................................................... 18
5.2 Example of Basic settings.......................................................... 19
5.3 Settings Damper motor, 2-stage ............................................. 20
6. Pump RSA 95/125...............................................................21
6.1 Technicaldata .............................................................................. 21
6.2 Components................................................................................. 21
6.3 Mounting/dismountingby-passplug ..................................... 21
6.4 Purging.......................................................................................... 21
6.5 Replacingthelter...................................................................... 21
6.6 Function ........................................................................................ 22
6.7 Suction line tables....................................................................... 23
7. Service .................................................................................24
7.1 BurnerServiceSchedule,Oil .................................................... 24
7.2 Component replacement intervals.......................................... 24
7.3 Combustiondevice .................................................................... 25
7.4 Airdamper................................................................................... 26
7.5 Replacementofdampermotor,air ......................................... 27
7.6 Fan ................................................................................................. 28
7.7 Replace oil pump ........................................................................29
7.8 Tightnesscheckofsolenoidvalves ......................................... 30
7.9 Replacement of electrical components.................................. 31
7.10 Vibrations...................................................................................... 32
8. Fault Location.....................................................................33
8.1 Burner will not start.................................................................... 33
8.2 Burner will not start after normal use .................................... 33
8.3 Delayedignition .......................................................................... 34
8.4 Noise in pump ............................................................................. 34
8.5 Pump pressure ............................................................................ 35
9. Logofuegasanalysis.....................................................36

4Bentone
165 105 01-2 2021-12-07
1. General Information
The burner may only be used for its intended purpose in accordance with the
product’s technical data.
We reserve the right to make design changes and cannot be held liable for any
misprints or typographical errors.
Modifying the design or using accessories or components that have not been
approved by Enertech in writing is strictly prohibited.
This Installation and Maintenance manual:
• is to be regarded as part of the burner and must always be kept near
the installation site.
• must be read prior to installation.
• is intended for use by authorised personnel.
1.1 Delivery inspection
• Make sure everything is delivered and the goods have not been
damaged during transit.
Transport damage must be reported to the shipping company.
• If something is wrong with a delivery, report it to the supplier.
1.2 Safety
- before installation:
• Installation and work on the burner and associated system
components may only be carried out by persons who have undergone
relevant training.
• The product is packaged to prevent damage from occurring when
handled – 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.
- installation:
• The burner must be installed in accordance with local regulations for
 re safety, electrical safety, and fuel distribution.
• The premises must comply with local regulations pertaining to use of
the burner, and must have adequate air supply.
• The installation site must be free of chemicals.
• Fire extinguisher with Class BE recommended.
• Make sure when installing the burner that there is enough space to
service the burner.
• The electrical installation must be professionally carried out in
accordance with current mains electricity regulations and in a
professional manner.
• 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.

5Bentone
• Care must be taken by the installer to ensure that no electrical cables
or fuel lines are pinched or otherwise damaged during installation or
service.
• Flame tubes, fan wheels and air dampers, for example, may contain
sharp edges.
- before  rst start:
• The burner must not be put into operation without proper safety and
protection devices.
• Permitted ambient temperature during operation -10 to +60 °C. Max.
80% relative humidity, no condensation.
• The surface temperature of the burner’s components may exceed
60 °C.
• Handle with caution – the burner has moving parts, and there is risk
of crushing injuries.
• Seal inspections must be performed during installation and servicing
to prevent leakage.
•  tting and installation work has been completed and approved.
• electrical installation has been correctly performed.
•  ue gas ducts and combustion air ducts are not blocked.
• all actuators and control and safety devices are in working order and
correctly set.
• 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!
- Operation:
• Carry out all stipulated settings, service and inspection work within
the set time.
• If the oil burner control has a solid red light, contact your installer.

6Bentone
165 205 32-3
2. Technical data
The burner is intended for:
• Operation in installations according to EN 303 and EN 267.
When operating with a hot air boiler, the LMO24.255 or LMO44.255 control unit must be used.
Fuels:
• Fuel oil according to DIN 51603-1.
• Fuel oil A Bio 10 according to DIN 51603-6.
2.1 Dimensions B 55-2
* Min. recommended distance to oor.
d1
d2
d3
2.2 Burner installation
2.2.1 Hole patten
Make sure the hole pattern on the boiler is designed for burner ange.
A Ø B Ø C D E F G H *I
274/374/474 159 155 606 321 123 269 307 200
d1d2d3
ø (155) 165 14 ø (226) 254-300
D
øB
E
*I
A
øC
F
G H
160303-660

7Bentone
2.3 Working eld
2.4 Setting for nozzle assembly and air damper
!Do not exceed working
eld.
-
1,0
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
100 200 300 400 500 600 700 800
mbar
kW
13.0-67.5 kg/h
155-800 kW
160302-687-2
0
10
20
30
40
50
60
70
80
90
100
100 200 300 400 500 600 700 800
160302-035-2
kW
Air settings
Nozzle assembly
Scale
Burner output

8Bentone
2.6 Setting of ignition electrodes and brake
plate
Measurements according to EN 15036-1:2006
Alt.1 The noise 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.
!*NB It is important that the spark
does not strike against the brake
plate or nozzle.
Nozzle: 45° Solid/semisolid
60° Solid/semisolid
80° Solid/semisolid
Pump pressure: 14 bar (14-21 bar) depending on pump model
2.7 Nozzle and pump pressure
Due to different furnace geometries and capacities, it is not possible to
recommend a nozzle model.
2.5 Technical specication
a b c d e
2.5-3.0 2.0 6.5-7.0 2.0 6.0-7.0
a
b
c
d
e
B 55-2
Main supply, Operating 1) 230V, 1~, 1.2A, 50Hz, IP20
Main supply, Motor 230/400V, 3.1/1.8A
Max fuse rating 6.3A
NOX-class 3
Noise level 90dBA
1) Motor excluded.

9Bentone
2.8 Nozzle table
The table applies to oil with a viscosity of 4.4 mm2/s (cSt) at a density of 830 kg/m3..
14 15 16 17
Gph kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h
1,00 4,40 52 45 4,56 54 46 4,71 56 48 4,85 57 49
1,10 4,84 57 49 5,01 59 51 5,18 61 53 5,34 63 54
1,20 5,29 63 54 5,47 65 56 5,65 67 58 5,82 69 59
1,25 5,51 65 56 5,70 68 58 5,89 70 60 6,07 72 62
1,35 5,95 70 61 6,15 73 63 6,36 75 65 6,55 78 67
1,50 6,60 78 67 6,83 81 70 7,06 84 72 7,27 86 74
1,65 7,27 86 74 7,52 89 77 7,77 92 79 8,01 95 82
1,75 7,71 91 79 7,97 95 81 8,24 98 84 8,49 101 87
2,00 8,81 104 90 9,12 108 93 9,42 112 96 9,71 115 99
2,25 9,91 118 101 10,26 122 105 10,60 126 108 10,92 130 111
2,50 11,01 131 112 11,39 135 116 11,77 140 120 12,13 144 124
2,75 12,11 144 123 12,53 149 128 12,95 154 132 13,35 158 136
3,00 13,21 157 135 13,67 162 139 14,13 168 144 14,56 173 148
3,50 15,42 183 157 15,95 189 163 16,49 196 168 16,99 201 173
4,00 17,62 209 180 18,23 216 186 18,84 223 192 19,42 230 198
4,50 19,82 235 202 20,51 243 209 21,20 251 216 21,84 259 223
5,00 22,03 261 225 22,79 270 232 23,55 279 240 24,27 288 247
5,50 24,23 287 247 25,07 297 256 25,91 307 264 26,70 317 272
6,00 26,43 313 270 27,49 326 280 28,27 335 288 29,13 345 297
6,50 28,63 340 292 29,63 351 302 30,62 363 312 31,55 374 322
7,00 30,84 366 314 31,91 378 325 32,98 391 336 33,98 403 374
7,50 33,04 392 337 34,19 405 349 35,33 419 360 36,41 432 371
8,00 35,25 418 359 36,47 433 372 37,69 447 384 38,80 460 396
8,50 37,45 444 382 38,74 459 395 40,04 475 408 41,26 489 421
9,00 39,65 470 404 41,02 486 418 42,40 503 432 43,69 518 446
9,50 41,85 496 427 43,30 514 442 44,75 531 456 46,11 547 470
10,00 44,06 523 449 45,58 541 465 47,11 559 480 47,11 559 480
11,00 48,46 575 494 50,14 595 511 51,82 615 528 53,40 633 545
12,00 52,87 627 539 54,70 648 558 56,53 670 576 58,25 691 594
14,00 62,68 732 629 63,81 757 651 65,95 778 669 67,96 806 693
16,00 70,49 836 719 72,93 865 744 75,38 894 769 77,67 921 792
18,00 79,30 940 809 82,05 973 837 84,80 1006 865 87,38 1036 891
20,00 88,11 1045 899 91,17 1081 930 94,22 1117 961 97,09 1151 990
22,00 96,92 1149 988 100 1189 1023 104 1229 1057 107 1267 1089
24,00 106 1254 1078 109 1297 1116 113 1341 1153 116 1382 1188
26,00 115 1359 1168 119 1406 1209 122 1453 1249 126 1497 1287
Pumptryck bar
Pump pressure bar

10 Bentone
18 19 20 21
Gph kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h
1,00 4,99 59 51 5,13 61 52 5,26 62 54 5,40 64 55
1,10 5,49 65 56 5,64 67 57 5,79 69 59 5,93 70 60
1,20 5,99 71 61 6,16 73 63 6,32 75 64 6,47 77 66
1,25 6,24 74 64 6,41 76 65 6,58 78, 67 6,74 80 69
1,35 6,74 80 69 6,93 82 71 7,11 84 72 7,28 86 74
1,50 7,48 89 76 7,69 91 78 7,89 93 80 8,08 96 82
1,65 8,24 98 84 8,47 100 86 8,69 103 89 8,90 105 91
1,75 8,78 104 90 8,98 106 92 9,21 109 94 9,44 112 96
2,00 9,99 118 102 10,26 122 105 10,53 125 107 10,79 128 110
2,25 11,24 133 115 11,55 137 118 11,85 140 121 12,14 144 124
2,50 12,48 148 127 12,83 152 131 13,16 156 134 13,49 160 138
2,75 13,73 163 140 14,11 167 144 14,48 171 148 14,84 176 151
3,00 14,98 178 153 15,39 182 157 15,79 187 161 16,18 192 165
3,50 17,48 207 178 17,96 213 183 18,43 218 188 18,89 224 193
4,00 19,98 237 204 20,53 243 209 21,06 250 215 21,59 256 220
4,50 22,47 266 229 23,09 274 235 23,69 281 242 24,28 288 248
5,00 24,97 296 255 25,65 304 262 26,33 312 268 26,98 320 275
5,50 27,47 326 280 28,22 335 288 28,96 343 295 29,68 352 303
6,00 29,97 355 306 30,79 365 314 31,59 374 322 32,38 384 330
6,50 32,46 385 331 33,35 395 340 34,22 406 349 35,07 416 358
7,00 34,96 415 356 35,92 426 366 36,86 437 376 37,77 448 385
7,50 37,46 444 382 38,49 456 392 39,49 468 403 40,47 480 413
8,00 39,96 474 407 41,05 487 419 42,12 499 429 43,17 512 440
8,50 42,45 503 433 43,62 517 445 44,75 531 456 45,87 544 468
9,00 44,95 533 458 46,18 548 471 47,39 562 483 48,57 576 495
9,50 47,45 563 484 48,75 578 497 50,02 593 510 51,26 608 523
10,00 49,94 592 509 51,32 609 523 52,66 624 537 53,96 640 550
11,00 54,94 652 560 56,45 669 576 57,92 687 591 59,36 704 605
12,00 59,93 711 611 61,58 730 628 63,19 749 644 64,76 768 660
14,00 69,92 829 713 71,84 852 733 73,72 874 752 75,55 896 770
16,00 79,91 948 815 82,11 974 837 84,25 999 859 86,34 1024 880
Pumptryck bar
Pump pressure bar
The table applies to oil with a viscosity of 4.4 mm2/s (cSt) at a density of 830 kg/m3.

11Bentone
2.9 Components
1. Brake plate
2. Nozzle
3. Ignition electrodes
4. Fixing ange
5. Ignition transformer
6. Flame detector
7. Control box
8. Contactor/Thermal
overload protection
9. Switch I-0
10. Indicator lamp, Stage 1
11. Cover, inspection glass
12. Switch I-II
13. Indicator lamp, Stage 2
14. Fan wheel
15. Electrical connection
16. Motor
17. Reset button
18. Solenoid valve, Stage 1
19. Solenoid valve, Stage 2
20. Nozzle assembly adjustment
21. Damper motor
22. Safety valve
23. Pump
24. Flame tube
25. Air intake
26. Air damper
160303-662
1
20
25
160303-651
2 3 6 7 9
13
12
21 17
19
23 22
26
16
8
10
11
54
14
15
18
24

12 Bentone
E106369
165 405 53
3. Electric equipment
3.1 Safety system
The safety system (safety switch for hatches, doors, water level, pressure,
temperature and other safety devices) must be installed in the safety circuit in
accordance with current regulations for the system.
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.
3.2 Wiring diagram
Bn Brown
Bu Blue
Gn Green
Ye Yellow
Gn/Ye Green/Yellow
Bk Black
Gy Grey
Rd Red
Wh White
Og Orange
Vt Violet

13Bentone
3.2.1 Components
A1 Oil burner control
B1 Flame detector
F1 Operating fuse
F2 Operating fuse
H1 Lamp, Low load
H2 Lamp, High load
H5 Lamp, lock-out signal 230V
K1 Thermal overload protection
M1 Motor
M2 Damper motor
P1 Timer, total operating time
P2 Timer, High load
S1 Operating switch
S2 Switch, High/Low load
S3 Regulating thermostat
S4 Temperature limiter
S5 Safety switch for hinged door
S6 Regulating thermostat,
High/Low load
S7 Main switch 3-phase
S20 Main switch, Operation
T1 Ignition transformer
X1 Connection terminal board
X2 Earth terminal
X3 Plug-in contact ”Euro”, burner
X4 Plug-in contact ”Euro”, boiler
X5 Plug-in contact ”Euro”,
High/Low load, burner
X6 Plug-in contact ”Euro”,
High/Low load, boiler
X7 Plug-in contact ”Euro”
3-phase, burner
X8 Plug-in contact ”Euro”,
3-phase, boiler
Y1 Solenoid valve 1
Y2 Solenoid valve 2
Y1S Safety valve
3.3 Function
1 Switch on operating switch and twin thermostat
A spark is formed. The air damper motor opens the damper to low load
position. The burner motor starts, the prepurge goes on till the prepurge
period expires and the solenoid valve 1 opens (2).
2. Solenoid valve 1 opens
Oil mist is formed and ignited. The photocell indicates a ame. The ignition
spark goes out after ame indication (See Technical data oil burner control).
3.
a
b
The safety time expires
If no ame is established before this time limit the control cuts out.
If for some reasons the ame disappears after this time limit, the burner will
make an attempt to re-start.
4 High/Low thermostat ON
The burner is in operating position and can now change between full load and
low load.
4-5 Operating position
If the burner operation is interrupted by means of the main switch or the
thermostat, a new start takes place when the conditions in accordance with
point 1 are fullled.
The oil burner control cuts out
A red lamp in the control is lit. Press the reset button and the burner re-starts.
!Mains connection and fuse
in accordance with local
regulations.
3.3.1 Technical data
LMO14.113... LMO24.255...
15 s 25 s
16 s 26 s
3 s 5 s
< 10 s < 5 s
< 1 s < 1 s
< 1 s < 1 s
-5 - +60°C -20 - +60°C
45 µA dc 45 µA dc
5.5 µA dc 5.5 µA dc
160303-333
Preiginition time
Prepurge time
Postignition time
Safety lockout time
Reset time after lockout
Reaction time on  ame failure
Ambient temperature
Min detector current required (with  ame)
Max perm. detector current (without  ame)
Svart
-
+
QRB
12
11
Black Schwarz Noir
A1
DC μA

14 Bentone
3.4 Colour codes
When the burner starts, three signal lights in the reset switch indicate the
normal sequence, as well as provide indication if something abnormal is
happening in accordance with the following table:
Preheater in operation Solid yellow
Ignition switched on Flashing yellow
Normal operation Solid green
Operation, poor ame signal Flashing green
Undervoltage Flashing yellow-red
Fault, alarm Solid red
False light Flashing red-green
Communication mode Fluttering red
3.5 Fault codes
When the red light for a blocked relay box comes on, you can get information
about what has caused the problem by pressing and holding the reset button
for 3 seconds.
The number of ashes below is repeated with a pause in between.
2 ashes No ame signal when safety time expires
4 ashes False light during start
7 ashes 3 x Losses of ame during operation
8 ashes Time-out for preheater *
10 ashes Incorrect wiring, internal fault or simultaneous occurrence
of two faults
* In order for this fault code to occur, the preheater shall not reach its
cut-off temperature within 10 mins. from switch on.
To return to normal operation: Press the reset button for 1 second.
If the reset button is instead kept pressed a second time for at least 3 seconds,
you can, via an interface, obtain the corresponding information on a computer
or ue gas analyser.
To return to normal operation: Press the reset button for 1 second.

15Bentone
165 205 19-3
4. Installation
4.1 General instructions
Oil burners must be installed in accordance with local regulations. The installer
must therefore be knowledgeable of the regulations pertaining to oil and
combustion.
Only oil suitable for the burner must be used and then in combination with a
suitable oil lter installed before the burner’s oil pump.
If the burner is replacing an existing burner, ensure that the oil lter is
replaced or cleaned. Installation may only be performed by qualied
personnel.
Care should be taken by the installer to ensure that electrical cables and oil
lines are not pinched or otherwise damaged during installation or servicing.
4.2 Inspection and maintenance
The system must be maintained at the interval specied in the service
schedule. If the burner is in a dirty environment, service should be done at
more frequent intervals.
4.3 Start-up
In order to obtain the correct setting, a ue gas analysis and temperature
measurement must be carried out. Otherwise, there is a risk of soot build up,
poor eciency or condensation in the chimney. The system must be ne-tuned
at start-up. The temperature in the chimney at a depth of 0.5 m must be at
least 60 °C to prevent condensation.
4.4 Preparing for installation
Check that the burner’s dimensions and capacity range are suitable for the
relevant boiler. The power data on the rating plate refers to the burner’s
minimum and maximum power.
4.5 Oil distribution
In order to achieve good reliability, it is important that the oil distribution
system is designed correctly.
Take the following into account:
• Selection of pipe diameter, pipe length and height difference; see
Pump instruction.
• Pipelines are to be laid with the fewest possible number of glands.
• The pipes are to be laid so that the oil supply hoses are not subjected
to tensile stresses or become excessively bent when the burner is
swung out or removed for servicing.
• The oil lter should be installed so that the lter cartridge can easily
be replaced or cleaned.
• Parts in contact with oil must be selected in materials that are capable
of withstanding the medium’s physical properties.
• When installing oil hoses, check that the inlet and return hoses are
tted to the appropriate connection on the oil pump. The hoses must
be located so that they do not bend or become subject to tensile load.
• Bleed the oil system. The oil pump/oil preheater may be damaged if
run dry. The vacuum in the suction line should not fall below 0.3 bar
during start-up.
!Besuretollthe
burneroilsystem
before starting it for the
rsttime.
!Theoilltermustbe
installed before the
burner’s oil pump.

16 Bentone
!Ifanyelectricalconnectionisusedotherthanthat
recommendedbyEnertech,theremaybeariskofdamageto
propertyandpersonalinjury.
4.6 Electrical connection
• Before work on the electrical connection, the current must be
disconnected so that the installation is isolated.
• Electrical connection must be done in accordance with the applicable
regulations.
• Burners must be connected to an all-pole switch.
• Connection must conform to the wiring diagram.
• Use appropriately sized fuses.

17Bentone
4.7 Handling and lifting instruction
!The lifting aid we used here are
available as spare parts.
165 205 33-2

18 Bentone
5. Mounting
1. Remove fan housing from  xing  ange.
2. Remove the brake plate from the oil line.
3. Install the selected nozzles, (see Technical data).
4. Install the brake plate on the oil line.
5. Remove  ame tube from  xing  ange.
6. Install  xing  ange with gasket on boiler.
7. Install the  ame tube on the  xing  ange. Make sure that the holes in
the front edge of the  ame tube are pointing down (not on all  ame
tubes), allows any drops of oil to run out.
8. Insulate between burner and boiler door to reduce radiated heat.
9. Install fan housing on  xing  ange and lock with nuts.
10. Connect oil lines to the pump.
11. Connect the burner electrically.
5.1 Check oil line seals
When the burner has been installed and put into operation, the tightness of
the various coupling elements should be checked, in case of leakage - tighten
the coupling elements.
!If the burner tube must be installed from the inside of the
boiler,thismeansthattheboilermustbeopenedorhavea
spectacleangethatisdesignedsothatitcanbereconnected
with the burner tube mounted.
165 105 51-2 2022-03-31
!UseLoctite5188on
threaded oil lines.

20 Bentone
165 205 35-4
5.2 Example of Basic settings
Basic settings should only be seen as setting values to get burner to start.
Once the burner has started and established ame, it is necessary to adjust the
settings so that they are adapted to the installation and the fuel used.
B 55-2
Burner output: 627 kW
Estimated nozzle output: 627 / 11.86* = 52.9 kg/h
(* Calorc value Fuel oil = 11.86 kWh/kg)
This provides the following nozzle according to the nozzle table, (see Technical
data).
627 kW distributed over 2 nozzles:
Nozzle Stage 1: 7.00 Gph 392 kW
Nozzle Stage 2: 4.50 Gph 235 kW
Pump pressure: 14.0 bar
Setting values for 627 kW according to basic setting diagram, (see Technical
data).
Insert Stage 2 = 25
Air Stage 1 = 32
Fuel, Stage 2 Solenoid valve 2 = 48
Air Stage 2 = 65
Selection of output and connection between the different power stages must
be selected and adjusted so that the system achieves good functionality.

20 Bentone
165 205 39-3 2022-10-27
5.3 Settings Damper motor, 2-stage
Release button
High load (red)
Low load (orange)
Closed air damper (blue)
Solenoid valve High load (black)
Air adjustment
The damper motor rotates the air damper between
three preset positions: completely closed, low load and
high load. These positions are controlled in the motor
by colored cam discs, the black cam disc controls the
switching on/off of the solenoid valve. Adjust the amount
of air by changing the position of the cam discs.
Blue cam disc is the limit position for closed air dampers
and does not normally need to be changed.
Low load
• Set control switch for load position to position II
(high load).
• Turn orange cam disc to 0° to reduce air ow and
to 90° to increase air ow.
• Return the control switch to position I (low load)
and check the combustion values.
High load
• Set control switch for load position to position I
(low load).
• Turn red cam disc to 0° to reduce air ow and to
90° to increase air ow.
• Place black cam disc in a position between red
and orange cam discs and adjust to obtain a
good load change.
• Return the control switch to position II (high
load) and check the combustion values.
Release
By pressing the button, the motor is disengaged and the
air damper can be turned. The function is used when
servicing air dampers.
Recommended excess air
Excess air fl ue gases Max % CO2
% O2% CO2Lambda 1.2
3 - 5 ≈12.5 15.4