Bentone B 30 A2.2 RME Technical specifications

Providing sustainable energy solutions worldwide
178 142 52-3 P93783 2023-03-17
Installation- and maintenance instruction
B 30 A2.2 RME
LMO24.255C2E
DV 57 C
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 fi 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 fi 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
1.3 General requirements FAME/RME............................................. 6
2. Technical data.......................................................................7
2.1 Dimensions B 30 A2.2 .................................................................. 7
1.4 Burner installation ........................................................................ 7
2.2 Workingeld.................................................................................. 8
2.3 Basic settings - Fuel oil................................................................. 8
2.4 Basic settings - HVO/XTL ............................................................. 9
2.5 Technicalspecication ................................................................. 9
2.6 Settingofignitionelectrodesandbrakeplate ..................... 10
2.7 Nozzleandpumppressure....................................................... 10
2.8 Nozzletable.................................................................................. 10
2.9 Components................................................................................. 11
3. Electric equipment.............................................................12
3.1 Safety system .............................................................................. 12
3.2 Wiringdiagram.......................................................................... 12
3.3 Function LMO14/24.................................................................... 13
3.4 ColourcodesLMO14/24............................................................ 14
3.5 FaultcodesLMO14/24............................................................... 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 Suntec D(V) 57C.......................................................21
6.1 Pump operating principle ......................................................... 22
6.2 Suctionlinetables....................................................................... 23
6.3 Check oil line seals...................................................................... 25
6.4 Replacementofpumplter...................................................... 25
6.5 Replacing the gasket seal (pump) ........................................... 26
7. Service .................................................................................27
7.1 BurnerServiceSchedule,Oil .................................................... 27
7.2 Component replacement intervals.......................................... 27
7.3 Combustiondevice .................................................................... 28
7.4 Airdamper................................................................................... 29
7.5 Replacementofdampermotor,air ......................................... 30
7.6 Fan ................................................................................................. 31
7.7 Replace oil pump ........................................................................32
7.8 Replacement of electrical components.................................. 33
7.9 Vibrations...................................................................................... 34
8. Fault Location.....................................................................35
8.1 Burner will not start.................................................................... 35
8.2 Burner will not start after normal use .................................... 35
8.3 Delayedignition .......................................................................... 36
8.4 Noise in pump ............................................................................. 36
8.5 Pump pressure ............................................................................ 37
9. Logofuegasanalysis.....................................................38

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
fi 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.
• fi 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
165 405 06 2021-12-07
1.3 General requirements FAME/RME
• The fuel must meet the requirements of standard EN 14214 for FAME.
• The fuel must be stored and used according to the manufacturer’s
instructions. It should typically be used within 6 months of
manufacture. Fuel that is allowed to age loses its oxidation stability
and produces aggressive constituents. These may cause oxidation
damage to components in the oil system. The fuel should be stored in
a cool and dark area.
• The RME tank must be made of metal or dark coloured plastics
approved for the fuel.
• Burners fuelled by FAME (RME) are – and must be – equipped with
parts designed for this fuel. This applies to oil-related parts such as
the pump, solenoid valve, oil filter and hoses.
• Oil hoses must be of high-quality uoride rubber or PTFE intended for
FAME/RME, and the hoses must be fitted with fire-retardant sleeves in
order to satisfy requirements according to EN-ISO 6806.
• The installation should be performed as a single-pipe system. Copper
should be avoided the fuel system since the fuel and copper have an
oxidising effect on each other.
• Annual cleaning and checking for the presence of water in the tank
should be done to avoid corrosion and microorganisms.

7Bentone
165 305 22-4
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:
• FAME/RME according to EN 14214.
• HVO/XTL according to EN 15940.
• Fuel oil according to DIN 51603-1.
• Fuel oil A Bio 10 according to DIN 51603-6.
2.1 Dimensions B 30 A2.2
* Min. recommended distance to oor.
A ØB ØC D E F G H * I
174/315 108 108 378 220 85 187 214 200
2.1.1 Dimensions ange
ø108
160-190
35
11
*I
GH
øB
øC
E
F
A D
160303-713 160303-721

8Bentone
2.3 Working eld
2.4 Basic settings - Fuel oil
-0,5
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
60 80 100 120 140 160 180 200
mbar
kW
6.0-17.0 kg/h
72-200 kW
160302-622
0
20
40
60
80
100
0
2
4
6
8
10
75 100 125 150 175 200
160303-219
kW
Air settings
Nozzle assembly
Scale1
Burner output
Air2<˚
1Scale nozzle assembly and air damper without damper motor.
2
Settings air damper with damper motor.
!Do not exceed working
eld.
d1
d2
d3
d1 d2 d3
ø 115 10 ø 160-190
2.2 Burner installation
2.2.1 Hole patten
Make sure the hole pattern on the boiler is designed for fixing ange.

9Bentone
2.5 Basic settings - HVO/XTL
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.
B 30 A2.2
Main supply 1) 230V, 1~, 2.6/2.8A, 50Hz, IP20
Max fuse rating 6.3A
Elmin preheater excluded 1.40A, 297W
Elmax preheater excluded 1.50A, 315W
PSB 0
NOX-class 4
NOX(GCV) preheater excluded 119mg/kWh
Noise level 82dBA
1) Max operating current, see data plate.
2.6 Technical specication
0
20
40
60
80
100
0
2
4
6
8
10
55 85,2 115 144 175
160303-600
kW
Air settings
Nozzle assembly
Scale1
Burner output
Air2<˚
1Scale nozzle assembly and air damper without damper motor.
2
Settings air damper with damper motor.
Flame signal
When operating at high power or low air excess and HVO/XTL is used as fuel,
the ame signal may deteriorate (blue ame), the signal lamp in the reset
button ashes green.
By lowering the air velocity or changing the ame detector to QRC1 A1, the
ame signal can be improved.

10 Bentone
2.9 Nozzle table
Pump pressure bar
The table applies to oil with a viscosity of 4.4 mm2/s at a density of 830 kg/m3..
RME energy content 10,4 kWh/kg
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 11,38 135
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
!*NB It is important that the spark
does not strike against the brake
plate or nozzle.
a b c d
3.5-4.0 7,0-9,0 2.0-3.0 5.0-6.0
2.7 Setting of ignition electrodes and brake
plate
2.8 Nozzle and pump pressure
Due to different furnace geometries and capacities, it is not possible to
recommend a nozzle model.
Nozzle 60° Solid/Hollow cone
80° Solid/Hollow conel
Pump pressure 10 bar (8–14 bar) Fuel oil 1
a
b
c
d

11Bentone
2.10 Components
1. Brake plate
2. Nozzle
3. Ignition electrodes
4. Nozzle assembly
5. Ignition cable
6. Ignition transformer
7. Reset button
8. Electric panel
9. Cover, inspection glass
10. Switch I-II
11. Switch 0-I
12. Solenoid valve, safety valve
13. Motor
14. Nozzle assembly adjustment
15. Flame tube
16. Damper motor
17. Flame detector
18. Solenoid valve
block
19. Connecting pipe, Stage 1
20. Connecting pipe, Stage 2
21. Solenoid valve 1
22. Solenoid valve 2
1 2 3 4 5
6 17 7
8
9
11
10
13
15
20
19
21
22
1812
16 14

13Bentone
E106356
165 205 56-2
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

14 Bentone
Svart
-
+
QRB
12
11
Black Schwarz Noir
A1
DC μA
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.
3.2.1 Components
A1 Burner control
B1 Flame detector
F1 Fuse
H1 Lamp, low capacity
H2 Lamp, high capacity
H3 Lamp, lock-out signal 230V
M1 Motor
M2 Damper motor
P1 Time meter, low capacity
(optional)
P2 Time meter, high capacity
(optional)
S1 Operating switch
S2 Operating switch,
high/low capacity
S3 Control thermostat
S4 Temperature limiter
S5 Safety switch for hinged door
S6 Control thermostat, high/low
S7 Main switch
T1 Ignition transformer
X1 Connection terminal board
X2 Earth terminal
X3 Plug-in contact, burner
X4 Plug-in contact, boiler
X5 Plug-in contact
high/low capacity burner
X6 Plug-in contact
high/low capacity boiler
Y1 Solenoid valve 1
Y1S Safety valve
Y2 Solenoid valve 2
!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)
3.3 Function

15Bentone
3.4 Colour codes
When the burner starts, the light in the reset switch indicates the normal
sequence, and also indicates whether something abnormal is happening as
per 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.

17Bentone
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 filter installed before the burner’s oil pump.
If the burner is replacing an existing burner, ensure that the oil filter is
replaced or cleaned. Installation may only be performed by qualified
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 specified 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 fine-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 filter should be installed so that the filter 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
fitted 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.

18 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.

19Bentone
165 105 03-2
4.7 Handling and lifting instruction
iThe lifting aid are available as
accessories.

18 Bentone
165 105 04-2
5. Mounting
1. Remove fan housing from fi 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 the  ame tube from the  ange.
6. Install the  ange with gasket on the boiler.
7. Install  ame tube, be sure to install the drainage hole
downwards (not available on all  ame tubes) so that any oil
spills can drain out.
8. Insulate between  ame tube and boiler door for reduced heat
radiation.
9. Install the fan housing on the  ange and lock with nuts.
10. Connect oil lines to the pump, (see chapter Service).
11. Connect the burner electrically, (see chapter Service).
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 - retighten the coupling elements.

19Bentone
165 405 24-2
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 30 A2.2
Burner output: 154 kW
Estimated nozzle output: 154 / 11.86* =13.0 kg/h
(* Calorfic value Fuel oil =11.86 kWh/kg)
This provides the following nozzle according to the nozzle table, (see Technical
data).
154 kW distributed over 2 nozzles:
Nozzle Stage 1: 2.00 Gph 88 kW
Nozzle Stage 2: 1.50 Gph 66 kW
Pumpetryk: 10.0 bar
Setting values for 154 kW according to basic setting diagram, (see Technical
data).
Air Stage 1 =50
Fuel, Stage 2 Solenoid valve 2 = 66
Air Stage 2 = 82
Insert Stage 2 = 2.1
Selection of output and connection between the different power stages must
be selected and adjusted so that the system achieves good functionality.

21Bentone
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