Bentone B 40 A2.2 Technical specifications

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178 133 54-1 2019-10-23
Installation- and maintenance instruction
B 40 A2.2
Original translation of Installation- and maintenance instruction

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 B 40A2,2 ______________________________ 7
2.1 Dimensions B 40__________________________________ 7
2.2 Working field B 40 A2,2 ___________________________ 8
2.3 Setting of brake plate and air flow ___________________ 9
2.4 Recommended nozzle and pressure _________________ 9
2.5 Burner installation _________________________________ 9
2.6 Nozzle table_____________________________________ 10
2.7 Description B 40 _________________________________ 12
3. General instructions _________________________________ 13
3.1 General rules ____________________________________ 13
4. Installation _________________________________________ 14
4.1 Handling and lifting instruktion _____________________ 14
4.2 Acceptance inspection____________________________ 15
4.3 Preparations for installation ________________________ 15
4.4 Distribution of oil _________________________________ 15
4.5 Electrical connection______________________________ 15
4.6 Mount the burner on the boiler _____________________ 16
4.7 Check oil line seals _______________________________ 16
4.8 Air adjustment with damper motor __________________ 17
4.9 Examples of basic setting B 40A2,2_________________ 18
4.10 Setting values for nozzle assembly and
air damper B 40 _____________________________ 19
5. Burner servicing ____________________________________ 20
5.1 Servicing the combustion assembly ________________ 20
5.2 Servicing air dampers ____________________________ 21
5.3 Replacement of damper motor _____________________ 22
5.4 Servicing the fan _________________________________ 23
5.5 Replacement of oil pump__________________________ 24
5.6 Vibration________________________________________ 25
6. Instructions Pump __________________________________ 26
6.1 SUNTEC A2L 65C - 75C _________________________ 26
7. Replacement of electrical components ________________ 32
8. Oil burner control ___________________________________ 33
8.1 Wiring diagram _________________________________ 33
8.2 List of components_______________________________ 34
9. Fault Location ______________________________________ 35
9.1 Burner will not start_______________________________ 35
9.2 Burner will not start after normal use ________________ 35
9.3 Delayed ignition__________________________________ 36
9.4 Noise in pump ___________________________________ 36
9.5 Pump pressure __________________________________ 36
10. Log of flue gas analysis____________________________ 37
11. Oil burners maintenance instructions _______________ 38

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.
• 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
• 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
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
Burner 1 year 3000 hrs
Filter 1 year 3000 h Change
Oilhose 1 year control/change
Nozzle 1 year change 3000h Change
Electrods 1 Year Change /cleaning 3000h Change /cleaning
Brake plate 1 Year Change /cleaning 3000h Change /cleaning
Motor 1 year 3000 hrs
Cuppling chaft 1 year control/change 3000h control/change
Fan wheel “1 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
Servicing must be carried out once 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.

7Bentone
165 105 34
2. Technical data B 40A2,2
The burner is intended for:
• Light oil, B10 heating oil/biofuel blend (as defined in DIN V51603-6)
and is used for:
• Water heating generators
• Hot air generators (these require LMO 24 255 C2E)
2.1 Dimensions B 40
* Min. recommended distance to floor.
H
IA D
øB øC
E
G F
J
A Ø B Ø C D E F G H I * J
B 40 172/274/372 130 114 420 260 310 360 207 435 200

8Bentone
Type Motor Complete
burner
Sound
B 40 250W 230V 1,7A
50Hz 8µF 230V 3,03A
50Hz
84 dBA ± 0,5
dBA
Max operating current, see data plate
2.2 Working field B 40 A2,2
8,0-26,5 kg/h
95-310 kW
2.2.1 Electric Specification
Burner correspond to IP 20
-1
0
1
2
3
4
5
80 120 160 200 240 280 320 360
mbar
kW

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2.4 Recommended nozzle and pressure
Nozzle: 45° Solid/semisolid
60° Solid/semisolid
80° Solid/semisolid
Pump pressure 10 bar (8-25 bar) depending on pump model
2.5 Burner installation
2.5.1 Hole patten
Make sure the hole pattern on the boiler is designed for burner flange.
Because of the various boiler types with varying furnace geometries and
furnace loads, it is impossible to commit to a certain scattering angle or a
specific distribution pattern.
It should be noted that the scattering angle and distribution pattern changes
with pump pressure.
d1
d2
d3
Combustion
device
d1d2d3
B 40 ø 115 (130) M14 ø 200-250
!*NB It is important that
the spark does not strike
against the brake plate or
nozzle
a
b
c
d
a b c d
B40 3.5-4.0 5,0-6,0 2.0-3.0 5.0-6.0
2.3 Setting of brake plate and air flow

10 Bentone
2.6 Nozzle table
10 11 12 13
Gph kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h
1,00 3,72 44 38 3,90 46 40 4,08 48 42 4,24 50 43
1,10 4,09 48 42 4,29 51 44 4,48 53 46 4,67 55 48
1,20 4,47 53 46 4,68 55 48 4,89 58 50 5,09 60 52
1,25 4,65 55 47 4,88 58 50 5,10 60 52 5,30 63 54
1,35 5,02 59 51 5,27 62 54 5,50 65 56 5,73 68 58
1,50 5,58 66 57 5,85 69 60 6,11 72 62 6,36 75 65
1,65 6,14 73 63 6,44 76 66 6,73 80 69 7,00 83 71
1,75 6,51 77 66 6,83 81 70 7,14 85 73 7,42 88 76
2,00 7,45 88 76 7,81 93 80 8,16 97 83 8,49 101 87
2,25 8,38 99 85 8,78 104 90 9,18 109 94 9,55 113 97
2,50 9,31 110 95 9,76 116 100 10,19 121 104 10,61 126 108
2,75 10,24 121 104 10,73 127 109 11,21 133 114 11,67 138 119
3,00 11,16 132 114 11,71 139 119 12,23 145 125 12,73 151 130
3,50 13,03 154 133 13,66 162 139 14,27 169 146 14,85 176 151
4,00 14,89 176 152 15,62 185 159 16,31 193 166 16,97 201 173
4,50 16,75 199 171 17,57 208 179 18,35 218 187 19,10 226 195
5,00 18,62 220 190 19,52 231 199 20,39 242 208 21,22 252 216
5,50 20,48 243 209 21,47 255 219 22,43 266 229 23,34 277 238
6,00 22,34 265 228 23,42 278 239 24,47 290 250 24,46 302 260
6,50 24,20 287 247 25,37 301 259 26,51 314 270 27,58 327 281
7,00 26,06 309 266 27,33 324 279 28,55 339 291 29,70 352 303
7,50 27,92 331 285 29,28 347 299 30,59 363 312 31,83 377 325
8,00 29,79 353 304 31,23 370 318 32,63 387 333 33,95 403 346
8,50 31,65 375 323 33,18 393 338 34,66 411 353 36,07 428 368
9,00 33,59 398 343 35,14 417 358 63,71 435 374 38,19 453 389
9,50 35,37 419 361 37,09 440 378 38,74 549 395 40,31 478 411
10,00 37,23 441 380 39,04 463 398 40,78 484 416 42,44 503 433
11,00 40,96 486 418 42,94 509 438 44,86 532 457 46,68 554 476
12,00 44,68 530 456 46,85 556 478 48,94 580 499 50,92 604 519
14,00 52,12 618 531 54,65 648 557 57,10 677 582 59,41 705 606
16,00 59,57 706 607 62,46 741 637 65,26 774 666 67,90 805 692
18,00 67,02 795 683 70,27 833 717 73,41 871 749 76,39 906 779
20,00 74,47 883 759 78,08 926 796 81,57 967 832 84,87 1007 865
22,00 81,91 971 835 85,89 1019 876 89,73 1064 915 93,36 1107 952
24,00 89,36 1060 911 93,70 1111 956 97,88 1161 998 101,85 1208 1039
26,00 96,81 1148 987 101,50 1204 1035 106,04 1258 1081 110,33 1308 1168
Pump pressure bar
The table applies to oil with a viscosity of 4.4 mm 2/s at a density of 830 kg/m 3..

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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
Pump pressure bar
The table applies to oil with a viscosity of 4.4 mm 2/s at a density of 830 kg/m 3..

12 Bentone
2.7 Description B 40
1. Brake plate
2. Nozzle
3. Ignition electrodes
4. Nozzle assembly
5. Ignition cable
6. Ignition transformer
7. Flame detector
8. Reset button
9. Electric panel
10. Cover, inspection glass
11. Indicating lamp/Switch I-II
12. Change-over switch/ Switch 0-I
13. Fan wheel
14. Motor
15. Nozzle assembly adjustment
16. Blast tube
17. Damper motor
18. Connecting pipe Stage 2
(Burner with two nozzles)
19. Air damper
20. Air intake
21. Connecting pipe Stage 1
22. Solenoid valve
23. Pump

13Bentone
165 105 03
3. General instructions
3.1 General rules
The installation of an oil burner should be carried out in accordance with
local regulations. The installer of the burner must therefore be aware of all
regulations relating to oil and combustion.
Only oil suitable for the burner should be used and then in combination with
a suitable oil filter before the oil pump of the burner.
If the burner is replacing an existing burner make sure that the oil filter
is replaced or cleaned. The installation must only be undertaken by
experienced personnel. Care should be taken by the installer to ensure
that no electrical cables or fuel/gas pipes are trapped or damaged during
installation or service/maintenance.
3.1.1 Installation and maintenance instructions
The maintenance instructions supplied with the burner must be kept at an
easily accessible location in the boiler room.
3.1.2 Instructions
The user must be receive detailed instructions concerning the functionality
of the oil burner and entire system. It is the responsibility of the supplier to
provide the user with instructions.
3.1.3 Inspection and maintenance
The boiler/burner should be examined regularly for any signs of malfunction
or oil leakage. (See service schedule)
3.1.4 Start up
In order to obtain the correct setting, a flue gas analysis and temperature
measurement must be carried out. Otherwise, there is a risk of soot build
up, poor efficiency or condensation precipitation in the chimney. The system
must be fine-tuned at start-up. The temperature in the chimney must be at
least 60 °C at 0.5 m down in the chimney to prevent condensation.

14 Bentone
4. Installation
4.1 Handling and lifting instruktion
The lifting aid are available as
spare parts,

15Bentone
4.2 Acceptance inspection
Make sure everything is delivered and the goods have not been damaged
during transit. If something is wrong with the delivery, report it to the supplier.
Transport damage must be reported to the shipping company.
4.3 Preparations for installation
Check that the burner’s dimensions and capacity range are suitable for the
boiler in question. The power data on the type sign refers to the burner’s min.
and max. power.
4.4 Distribution of oil
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 a minimal number of glands.
-The pipes are to be laid so that the oil supply hoses are not subjected
to tensile stresses or are excessively bent 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 or cleaned. Self-cleaning filters are recommended for oils of
a higher viscosity or oils that contain significant impurities.
-Oil-affected parts shall 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 fit-
ted to the appropriate connection on the oil pump. The hoses shall 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 should not fall below 0.3 bar in the suction line
during start-up.
!Be sure to fill the
burner oil system
before starting it for
the first time.
!If any electrical connection is used other than that recommended by Bentone, there may be a danger of
damage to property and personal injury.
4.5 Electrical connection
• Before work on the electrical connection, the current should be disconnected so that the installation
is isolated.
• Electrical connection must be done in accordance with the applicable regulations.
• Burners should be connected to an isolator switch.
• The connection should be made in accordance with the wiring diagram.
• Fuse rating is as required
!The oil filter must
be installed befo-
re the burner’s oil
pump.

16 Bentone
165 105 46
4.6 Mount the burner on the boiler
1. Separate the burner body and the flange.
2. Remove the brake disc from the oil pipe.
3. Install the selected nozzle. (See Technical data)
4. Install the brake disc on the oil pipe
5. Remove the burner pipe from the flange.
6. Install the flange with gasket on the boiler.
7. Install the burner pipe on the flange. Make sure that the holes in the
front edge of the burner pipe are pointing down (not on all burner
pipes). This allows any drops of oil to run out.
8. Insulate between the burner and boiler door to reduce radiated heat.
9. Install the burner body on the flange.
10. Lock the burner body using with the nut/nuts.
11. Connect the oil pipes to the pump, refer to the chapter - servicing of
burners
12. Connect the burner electrically, refer to the chapter - servicing of
burners
A
A
A
A4.7 Check oil line
seals
Once the burner has been installed
and commissioned, the seals of the
various coupling elements should be
checked (A).
When a leak is detected, it is usually
sufficient to tighten the coupling
element that is leaking.
!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
flange that is designed so that it can be reconnected with the
burner tube mounted.

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165 105 05
4.8 Air adjustment with damper motor
4.8.1 Air setting
The damper motor turns the damper between 3 preset positions: fully
closed, low capacity and high capa-city. These positions are controlled in
the motor by cams which are set by means of the coloured disks. In addition
there is a black disk controlling the connection of solenoid valve 2.
If the air volume needs changing: Remove the cover from the damper motor
and change the position of the cams by turning them by hand. See fig
Low capacity:
Adjust the operating switch to high capacity (II).
-Reduce the air volume:
Turn orange cam towards 0°.
-Increase the air volume:
Turn orange cam towards 90°.
Adjust the operating switch back to low capacity and check.
Full capacity:
Adjust the operating switch to low capacity (I).
-Reduce the air volume:
Turn red cam towards 0°.
-Increase the air volume:
Turn red cam towards 90°
If the red cam is moved, the black one must also be moved.
Reset the control switch to High Load and make sure the correct air quantity
is reached.
Releasing button:
By pressing the button and
snapping it down, the motor will be
released and the damper can easily
be turned. This function facilitates an
exchange of damper motor.
!The blue cam is
the limit position for
fully closed damper
and it is normally
not necessary to
change it
Releasing button
N.B. The upper position is the
standard position
Solenoid valve High capacity (black)
High capacity (red)
Low capacity (orange)
Closed damper (blue)

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165 105 33
Burner output 250 kW
Estimated nozzle output 250 kW/11,86 kWh/kg*= 21 kg/h
Nozzle selection in accordance with the table. (See technical data) Nozzle
selection is based on the selected pump pressure and the desired effect.
According to the nozzle table, this provides the following nozzle.
Selected pump
pressure
9,0 bar
Nozzle 6,0 gph 6,0 gph distributed to two nozzles,
e.g. 4.0 gph at stage-1 and 2,0 gph at
stage-2
Basic settings should only be seen as setting values to get burner to start
and establish a flame. Once the burner has started and established a flame,
it will be necessary to adjust the settings so that they are adapted to the
installation in question and the fuel used at the time.
Basic settings
The setting value for 250 kW in accordance with basic setting tables. For the
correct procedure when implementing settings, see below Nozzle assembly
control, brake plate B 40-2. Air setting 6,3
4.9 Examples of basic setting B 40A2,2
Nozzle B40-2
Burner output 250 kW
250 / 11,86 = 21 kg/h 9bar
According to the nozzle table, this provides the following nozzle.
Step 1 4,00 Gph = 167kW
Step 2 2,00 Gph = 84kW
Basic setting B40-2
The values are available in the tables for setting values of inserts or air
dampers.
Insert 250kW=2
Low load air damper, orange =50°
MV2 Open, black =60°
Air damper step 2, red =75°
These are the default settings and controlling the combustion will take place
during operation.
Selection of power and connection between the different power stages must
be selected and adjusted so that the system achieves good functionality

19Bentone
0
1
2
3
4
5
6
7
8
9
10
110 150 190 230 270 310 350
10
20
30
40
50
60
70
80
90
100
Air, <°
Nozzle assembly, scale
4.10 Setting values for nozzle assembly and
air damper B 40
Prior to commissioning, the basic settings of the burner can be set
in accordance with the diagram. See under Basic settings Note that
it is simply a matter of a basic setting that should be adjusted
retrospectively once the burner has started. A flue gas analysis and
soot quantity measurement must be carried out when fine-tuning the burner.
Recomended exsess air
Grade of Oil Excess air flue gases Max. % CO2
% O2% CO2Lambda 1.2
Light oil, B10 heating oil/
biofuel blend (as defined in
DIN V51603-6)
3–5 ≈12,5 15,4

20 Bentone
165 105 07
G
Note:
* When servicing/replacing components that affect combustion, an
analysis and soot test shall be carried out on the installation.
5. Burner servicing
5.1 Servicing the combustion assembly
Removal and installation
1. Switch off the main power.
2. Loosen the nut (G) and remove the burner body from the burner flange.
3. Remove the brake plate from the oil pipe and clean the brake plate.
4. Unscrew the nozzle/nozzles.
5. Install new nozzle/nozzles.
6. Install the brake plate. (see technical data)
7. Check the ignition electrodes. (see technical data)
8. If necessary, replace the ignition electrodes.
9. Fit the burner body and the burner flange together and secure with the
nut (G).
10. Open the boiler/spectacle flange to access the burner pipe.
11. Remove and clean the burner pipe. Turn anticlockwise.
12. Install the burner pipe, make sure you install the drainage hole (not on
all burner pipes) facing downwards so that any spilled oil can drain out.
13. Close the boiler / spectacle flange.
14. Turn on the main power.
15. Check combustion*.
!If the burner is directly connected, ensure that all
components on the burner are without power.
!Use caution when
operating the bur-
ner, surfaces may
be hot.
!NB: When soiled,
always replace
nozzles with new
nozzles. Do not
clean.