Bentone B55 User manual

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178 045 66-1 2017-11–28
Installation- and maintenance instruction
B55,B65 RME

3
Bentone B55/B65 RME
Table of contents
1. GENERAL _________________________________________________________________4
1.1 Description B55/B65 RME ____________________________________4
2. GENERAL INSTRUCTIONS ____________________________________6
2.1 Manual ________________________________________________________________6
2.2 Safety directions___________________________________________________6
2.3 General rules________________________________________________________6
3. TECHNICAL DATA ___________________________________________________8
3.1 Type designation B55-2/B65-2 RME ______________________8
3.2 Dimensions__________________________________________________________8
3.3 Recommended nozzle and pressure_______________________8
3.4 Output range and nozzles recommended________________9
3.5 Electric Specification_____________________________________________9
3.6 Working field _____________________________________________________ 10
3.7 Nozzle table_______________________________________________________ 11
4. INSTALLATION_______________________________________________________ 13
4.1 Acceptance inspection________________________________________ 13
4.2 Preparations for installation__________________________________ 13
4.3 Distribution of oil_________________________________________________ 13
4.4 Electrical connections _________________________________________ 13
4.5 Choice of nozzle_________________________________________________ 13
4.6 Setting of the brake plate and air flow___________________ 13
4.7 Burner installation_______________________________________________ 14
4.8 Installing the burner ____________________________________________ 14
4.9 Oil lines _____________________________________________________________ 14
4.10 Electrical connections _________________________________________ 14
5. BASIC SETTINGS __________________________________________________ 15
5.1 Typical basic settings for B65-2 ___________________________ 15
5.2 Set values for nozzle assembly B55______________________ 16
5.3 Set values for nozzle assembly B65______________________ 16
5.4 Set values for air damper B55______________________________ 16
5.5 Set values for air damper B65______________________________ 16
5.6 Nozzle assembly regulation – fixed brake plate ______ 17
5.7 Damper motor 2-Stage _______________________________________ 18
6. MAINTENANCE THE BURNER ____________________________ 19
6.1 Servicing the burner device ________________________________ 19
6.2 Adjusting the ignition electrodes and brake plate____ 19
6.3 Servicing the air damper______________________________________ 20
6.4 Replacing the damper motor _______________________________ 20
6.5 Replacing the oil pump B55/B65__________________________ 21
7. PUMP INSTRUCTION PUMP E4NC-1069 7P_____ 22
7.1 Technical data____________________________________________________ 22
7.2 Components______________________________________________________ 22
7.3 Oil connection____________________________________________________ 22
7.4 Changing the filter ______________________________________________ 22
7.5 Function ____________________________________________________________ 23
7.6 Preheating pump________________________________________________ 23
8. ELECTRIC EQUIPMENT ______________________________________ 24
8.1 Wiring diagram LMO24.255... _____________________________ 24
8.2 List of components_____________________________________________ 25
8.4 Function LMO24.255... _______________________________________ 26
8.3 Technical data LMO24.255..._______________________________ 26
8.5 Colour codes _____________________________________________________ 27
8.6 Fault codes________________________________________________________ 27
9. FAULT LOCATION__________________________________________________ 28
9.1 Burner will not start_____________________________________________ 28
9.2 Burner will not start after normal use_____________________ 28
9.3 Delayed ignition, burner starts; pulsation _______________ 28
10. DECLARATION OF CONFORMITY ______________________ 29
11. OIL BURNERS MAINTENANCE INSTRUCTION_ 30

4Bentone B55/B65 RME
General
1. GENERAL
1.1 Description B55/B65 RME
31a 27a 26a 27b 25a 22 23a
21
123 4 5 17
13
34
33
32
12
11
14
15
20
35
Components
1. Flame cone
2. Brake plate
3. Nozzle
4. Nozzle assembly
5. Ignition electrodes
11. Switch l-ll
12. Indicating lamp Stage 2
13. Cover, inspection glass
14. Indicating lamp Stage 1
15. Switch 0-l
17. Electric panel
20. Motor
21. Solenoid valves
22. Magnetventiler
23a. Connecting pipe
25a. Solenoid valve bloc Stage 2
26a. Nozzle assembly adjustment fixed
27a. Scale, air regulation
27b. Scale, nozzle assembly
31a. Adjustment device, air damper
32. Switch ll-lll
33. Indicating lamp Stage 3
34. Fuse
35. Damper motor

5
Bentone B55/B65 RME
General
16
19 18 910 7
8
6
292425a
23a22
30
26a
27a
35
26b31b 22 27b
25a
23b
35 31b 26b 22 27b
25b
23b
35
Components
6. Ignition cables
7. Ignition transformer
8. Photocell
9. Control box
10. Front plate, relay base
16. Fan wheel
18. Contactor
19. Thermal overload protection
22. Solenoid valve
23a. Connecting pipe
23b. Hydraulic hose
24. Air intake
25a. Solenoid valve bloc Stage 2
25b. Solenoid valve bloc Stage 3
26a. Nozzle assembly adjustment
26b. Nozzle assembly adjustment hydrauli
27a. Scale, air regulation
27b. Scale, Nozzle assembly
29. Air damper
30. Pump
31b. Adjustment device, Nozzle assembly
35. Damper motor
Description B55/B65 RME

6Bentone B55/B65 RME
General
2. GENERAL INSTRUCTIONS
2.3 General rules
This is a burner designed for FAME (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 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 must be used and then in combination with a
suitable oil filter designed for FAME (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 (RME). Installation may only be
performed by qualified 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.
Burners which are fuelled by FAME (RME) 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. It is very important when
carrying out a service to replace old parts with new parts of the same quality.
2.1 Manual
• The contents of this manual are to be observed by all who work for any
reason on the unit and its appertaining system parts.
• This manual is intended especially for authorised personnel.
• This manual is to be regarded as part of the burner and shall always be
available near the place of installation.
2.2 Safety directions
The electrical installation shall be made according to valid regulations for
heavy current and in a professional way, so that the risk of leaking oil, fire or
personal injury is avoided.
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.

7
Bentone B55/B65 RME
General
Adjustment of burner
The burner is from the factory preset to an average value
that must then be adjusted to the boiler in question.
All burner adjustments must be made in accordance with
boiler manufacturers instructions.These must include
the checking of flue gas temperatures, average water
temperature and CO2 or O2 concentration.
To adjust the combustion device, start by increasing the
air volume and the nozzle assembly somewhat. When
the burner starts it is burning with excess air and smoke
number 0. Reduce the nozzle assembly adjustment
until soot occurs, and then increase the adjustment to
make the soot disappear again. Then the volume of air is
reduced until soot occurs and increased again to reach a
combustion free of soot.
By this procedure an optimum adjustment is obtained. If
larger nozzles are used the preadjustment of both the air
volume and the nozzle assembly must be increased.
A whistling sound may be heard which can be
eliminated or reduced as follows: Increase the nozzle
assembly adjustment somewhat. The CO2-content and
consequently the air volume will then be reduced.
Condensation in chimney
A modern burner works with less excess air and often
also with smaller nozzles than older models. This
increases the efficiency but also the risk of condensation
in the chimney. The risk increases if the area of the
chimney flue is too large. The temperature of the flue
gases should exceed 60°C measured 0,5 metres from
the chimney top.
• Measures to raise the temperature:
• Insulate the chimney in cold attics
• Install a tube in the chimney
• Install a draught regulator (dilutes the flue gases
during operation and dries them up during
standstill)
• Increase the oil quantity
• Raise the flue gas temperature by removing
turbulators, if any, in the boiler.
Pump adjustment
See separate description.
Maintenance
The boiler/burner should be examined regularly for any
signs of malfunction or oil leakage. Any boiler/burner that
uses FAME (RME) as fuel must be serviced at least twice
a year.
Installation instructions
General installation instructions accompany the burner
and should be left in a prominent place adjacent to the
burner.
Oil supply
The oil line should be dimensioned in accordance with
the pump manufacturer´s instruction. A filter designed for
FAME (RME) that prevents any particles in the oil from
reaching the burner is mounted in the burner’s suction
pipe. If the installation consists of several burners each
one should have its own suction line from the tank or a
circulation system should be used.
The temperature in the oil line should be kept as
constant as possible. Avoid exposing the line to
excessive cold which may cause blockages.
The oil pipe and electric cable should be fitted so that
the burner can be placed on the floor for inspection of
the combustion device.
Oil hoses must be of a quality designed for FAME (RME).

8Bentone B55/B65 RME
General
3. TECHNICAL DATA
3.1 Type designation B55-2/B65-2 RME
3.2 Dimensions
3.3 Recommended nozzle
and pressure
Because of the different boiler types, combustion
chamber geometries and combustion chamber loads
that exist, it is not possible to specify a given spray
angle or spray pattern.It should be noted that the spray
angle and spray pattern will vary depending on the
pump pressure.
Nozzle
45°S Danfoss
45°B Danfoss
60°S Danfoss
60°B Danfoss
Pump pressure
4 bar (12 - 16 bar)
On burners equipped with hydraulic air control or
optimization the oil pressure should not be less than 14 bar.
Length of
burner tube
Flange
Measure B
Burner tube
Measure C
Burner tube
Measure D
B55
Standard 1 303 273 160 155
Standard 2 403 373 160 155
Standard 3 503 473 160 155
B65
Standard 1 288 258 200 155
Standard 2 388 358 200 155
Standard 3 488 458 200 155
304
609 B 610
321
400
405
C
D

9
Bentone B55/B65 RME
General
* The net calorific value of 11,86 kWh/kg for light oil has been used.
3.4 Output range and nozzles recommended
Oljemängd Effekt Rekommenderat munstycke Rekommenderat
kg/h kW Mcal/h Vinkel Danfoss pumptryck
B55-2H, B55-2, B55-2R 14-67 166-795 143-685 45°-60° S, B 14 bar
B55-3R 14-64 166-759 143-654 45°-60° S, B 14 bar
B65-2H, B65-2, B65-2R 24-99 285-1174 246-1012 45°-60° S, B 14 bar
B65-3R 24-99 285-1174 246-1012 45°-60° S, B 14 bar
3.5 Electric Specification
Type Motor The
recommended
main fuse,
motor
Control power Sound
B 55 230/400V, 50Hz,
3,5/2,5A, 0,75kW
2860 Rpm
C10A 230V1F~2,5A 89 dBA ± 0,5
dBA
B 65 230/400V, 50Hz,
6,5/4,0A, 1,5kW,
2890 Rpm C10A 230V1F~2,5A
87 dBA ± 0,5
dBA

10 Bentone B55/B65 RME
General
B55-2
14-67 kg/h
166-795 kW
B55-2R
B55-2H/B55-2
Measured (test)
3.6 Working field
B65
24-99kg/h
285-1174 kW
B65
Measured (test)
200 300 400 600 700 800 900 1000
-2
6
8
12
14
Pressure in fire place mbar
Output range kW
2
0
4
10
500 1100 1200
Unbroken line is the approved
working field as per EN267.
Pressure in fire place mbar
Output range kW
100 200 300 400 500 600 700 800
-2
0
2
4
6
8
10

11
Bentone B55/B65 RME
General
3.7 Nozzle table
Pump pressure bar
Gph 10 11 12 13
kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h
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 25,46 302 260
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
The table applies to oil with a viscosity of 4,4 mm2/s (cSt) with density 830 kg/m3.

12 Bentone B55/B65 RME
General
The table applies to oil with a viscosity of 4,4 mm2/s (cSt) with density 830 kg/m3.
Nozzle table
Pump pressure bar
Gph 14 15 16 17
kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h kg/h kW Mcal/h
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 33,98 403 347
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

13
Bentone B55/B65 RME
General
4. INSTALLATION
4.1 Acceptance inspection
Ensure that everything is delivered and that there is no transport damage. If
there is anything wrong with the delivery, please report it to the supplier. Any
transport damage should be reported to the forwarding company.
4.2 Preparations for installation
Ensure that the size and capacity range of the burner are suitable for the
boiler. Power data on the data plate refer to the minimum and maximum
power of the burner.
4.3 Distribution of oil
To ensure satisfactory operation it is essential that the oil distribution system
is correct.
Observe the following:
–See Pump instructions for choice of tube diameter, tube length and
height difference.
–Fix the tubing with a minimum number of screw fittings.
–Fix the tubes so that the oil hoses are not subjected to tensile stress or
sharp bending when swinging out the burner or removing it for service.
–Fit the oil filter 1½” so that the filter cartridge can easily be replaced.
4.4 Electrical connections
The main power switch must be turned off before beginning electrical in-
stallation. If the boiler has a 7-pin and a 4-pin Eurostecker connector these
will often connect straight to the burner. If not, use the connectors supplied.
A 5-pin connector supplies the burner motor with a separate 3-phase supply.
See connection under the Electrical equipment heading.
4.5 Choice of nozzle
See under Technical Data: Recommended nozzle and table of nozzles.
4.6 Setting of the brake plate and air
flow
Basic burner settings can be made before commissioning as shown in the
diagram. See Basic settings. Note that these are just basic settings and must
be correctly adjusted when the burner has been started. Flue gas analysis
and soot measurement should be carried out at this time.
!If another electrical connection is used than the one recommended by Bentone, there might be a risk of
material damage or personal injury.

14 Bentone B55/B65 RME
General
d2
d1
d3

E
4.7 Burner installation
Hole pattern
Check that the hole pattern on the boiler matches the pattern on the burner
flange.
Flame head d1d2d3
B55 (160)* 165 M12 (226)* 254-295
B65 (160)* 210 M12 (226)* 254-295
The hole pattern can be reduced if the burner pipe is fitted from the front and
the heels in the flange are ground off.
4.8 Installing the burner
1. Separate the burner body and the flange.
2. Fit the flange and gasket on the boiler.
3. Insulate between the burner pipe and boiler door to reduce heat
radiation.
4. Slide the burner body on to the guides.
5. Pull the brake plate off the oil pipe.
6. Fit the chosen nozzles (see Technical data).
7. Fit the brake plate and check the ignition electrodes (see Servicing the
burner).
8. Slide the burner together and secure it with the nuts (E).
4.9 Oil lines
1. Check the size of the oil line (see Pump instructions).
2. An oil filer (1/2”) must be fitted to the oil line. If an air trap is fitted then
the oil filter should be fitted to the oil line before the air trap.
3. With a single pipe system the return plug must be removed (see Pump
instructions).
4. When fitting oil hoses, check that the supply and return hoses are
connected to the right couplings on the oil pump. The hoses must be
positioned so that they are not subjected to tensile stress or sharp
bending.
5. Bleed the oil system. The oil pump will be damaged if it is run dry.
6. The vacuum in the suction line should not exceed 0.3 bar during
commissioning.
4.10 Electrical connections
1. Turn off the main power switch.
2. Connect the Eurostecker connectors (see Electrical equipment).
3. Check that the burner control switch (S1) is off.
4. Fit the Eurostecker connectors on the burner.
5. Turn on the main power switch.
6. Check the direction of rotation of the burner motor.

15
Bentone B55/B65 RME
General
5. BASIC SETTINGS
5.1 Typical basic settings for B65-2
Choice of nozzle B65-2
Burner output = 770 kW
Nozzle Stage 1 770 x 0,6 = 460 kW
460 / 11,86 = 38,8 kg/h
Nozzle Stage 2 770 x 0,4 = 310 kW
310 / 11,86 = 26,1 kg/h
According to the table of nozzles this gives the
following nozzles:
Stage 1 8,50 Gph
Stage 2 6,00 Gph
Pump pressure 14 bar
Basic settings B65-2
Power outputs and nozzle choice from example.
Nozzle assembly Stage 2 = 15
Damper motor Closed = 0° Blue cam
Stage 1 = 25° Orange cam
MV 2 = 50° Black cam
Stage 2 = 65° Red cam
The black cam for Stage 2 (MV 2) must be placed
between the cams for Stage 1 and Stage 2. The
positions of MV 2 are determined by the boiler
characteristics when switching between stages, but
for a basic setting the black cam should be placed in
the middle.

16 Bentone B55/B65 RME
General
5.2 Set values for nozzle assembly B55
5.3 Set values for nozzle assembly B65
5.4 Set values for air damper B55
5.5 Set values for air damper B65
Luft, <° Luft, <° Insats skala Insats, skala

17
Bentone B55/B65 RME
General
5.6 Nozzle assembly regulation –
fixed brake plate
Nozzle assembly regulation is used to achieve the most favourable
pressure drop possible across the brake plate.
Nozzle assembly regulation should be adjusted for Stage 2 output.
Adjustment
Adjust to the desired position on the scale (A) using the set screw (B)(tur-
ning anti-clockwise reduces the pressure drop and moves the brake plate
outwards). If pulsation occurs, the pressure drop across the brake plate
can be altered until pulsation stops.
AB

18 Bentone B55/B65 RME
General
5.7 Damper motor 2-Stage
Stage 2 (red)
Stage 1 (orange)
Closed damper (blue)
Solenoid valve Stage 2
(black)
Releasing button
N.B. The upper position is the
standard position
Stage 1
Adjust the operating switch to Stage
2 (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.
Stage 2
Adjust the operating switch to Stage
1 (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, change
the black cam as much. Adjust the
operating switch back to Stage
2 and ensure that the correct air
volume has been obtained.
Closed
The blue cam is the limit position
for fully closed damper and it is
normally not necessary to change it.
Releasing
The damper motor can be released
using the white release button. This
feature simplifies replacement of the
damper motor.
To release Press down the
shaft and slide it
outwards until it
disengages from
the milled slot.
To engage. Slide the shaft
inwards and
release. Adjust
the position of the
motor so that the
cogs mesh with
each other.
The damper motor rotates the
damper between three preset
positions. These positions are
controlled at the motor by micro-
switches, the switching positions
of which are set using the coloured
cams. There is also a black cam,
which controls the activation of
solenoid valve 2.
If the air flow requires adjustment:
Remove the cover from the damper
motor and change the positions
of the cams by turning them with
the aid of the tool supplied. To
deactivate a cam while you are
turning it we recommend that you
switch to a different stage and
then switch back after adjustment
is complete in order to check the
result.

19
Bentone B55/B65 RME
General

E
6. MAINTENANCE THE
BURNER
6.1 Servicing the burner device
Removal and fitting
1. Turn off the main power switch and disconnect the Eurostecker
connectors from the burner.
2. Undo the nuts (E) and pull out the burner body on its guides.
3. Undo and remove the brake plate from the oil pipe.
4. Unscrew the nozzles.
5. Fit the nozzles.
6. Fit the brake plate (see Adjusting the brake plate).
7. Check the ignition electrodes (see Adjusting ignition electrodes).
Replace if necessary.
8. Slide the burner together and secure it with the nuts (E).
9. Connect the Eurostecker connectors and turn on the main power
switch.
10. Check combustion*.
Note: After servicing/replacing components that affect combustion, a flue
gas analysis and soot measurement must be carried out on the installation.
Note: If nozzles are dirty always replace them with new ones. Do not clean
them.
On boilers with a hinged door, the door can be opened and the burner pipe
can be removed from the flange and pulled forwards.
With burners that have an extended burner tube, the burner body must be
lifted off the guides, or the oil pipe must be disconnected from the solenoid
valves to be removed for servicing.
6.2 Adjusting the ignition electrodes
and brake plate
Adjustment dimensions for ignition electrodes.
Burner, Type a b c d e
B55-2 2,5-3,0 2,0 6,5-7,0 2,0 6,0-7,0
B65-2 2,5-3,0 2,0 6,5-7,0 2,0 10,0-12,0
Note! It is important that the spark does not strike the brake plate or nozzle. a
b
c
d
c
d
e

20 Bentone B55/B65 RME
General
6.3 Servicing the air damper
Removal and fitting
1. Turn off the main power switch and disconnect the Eurostecker
connectors from the burner.
2. Undo the nuts (E) and pull out the burner body on its guides.
3. Remove the intake grille from the air intake.
4. Release the damper motor.
5. Clean the air damper (F) and the intake. Lubricate the damper shaft if
applicable.
6. Re-engage the damper motor.
7. Fit the intake grille over the air intake.
8. Slide the burner together and secure it with the nuts (E).
9. Connect the Eurostecker connectors and turn on the main power switch.
10. Check combustion*
6.4 Replacing the damper motor
Removal and fitting
1. Turn off the main power switch and disconnect the Eurostecker
connectors from the burner.
2. Note the positions of the cables and then disconnect the cables from the
damper motor
3. Release the damper motor and lock it at 30°.
4. Undo the screws (G) that secure the mounting plate for the damper motor.
5. Raise it carefully so that the air damper stays in the air intake.
6. Disconnect the (H) link arm from the motor shaft.
7. Separate the damper motor from the mounting plate (I).
8. Refit the damper motor on the mounting plate.
9. Connect the link arm to the damper motor shaft. It is important that the
screw is at right angles to the plane of the shaft.
10. Release the damper motor and lock it at 30°.
11. Fit the mounting plate by guiding the link arm into the attachment point
on the air damper and the air damper shaft into the mounting plate (make
sure that the bushings are fitted between the mounting plate and damper
shaft).
12. Release the damper motor and check that the damper moves freely. Close
the damper and zero the graduated scale on the damper motor.
13. Make the electrical connections to the damper motor.
14. Reset the damper motor cams.
15. Connect the Eurostecker connectors and turn on the main power switch.
16. Check combustion.*
E
F
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H
G
I