Bentone BG650 Series Technical specifications

178 000 82
Installation- and maintenance instruction
BG550,BG550LN,BG650

Contents
DESCRIPTION................................................................................................................................. 6
Warning.......................................................................................................................................................................6
2-Stage ........................................................................................................................................................................7
Modulating...................................................................................................................................................................8
TECHNICAL DATA ........................................................................................................................... 9
Dimensions .................................................................................................................................................................9
Output range .............................................................................................................................................................10
Working field............................................................................................................................................................. 11
SKELETON DIAGRAMS ...............................................................................................................12
2-stage or modulating burners................................................................................................................................12
MOUNTING OF THE BURNER.................................................................................................... 13
Inspection of gas assembly.....................................................................................................................................13
Adjustment of the position of the shrouded disc in the blast tube .......................................................................13
ELECTRIC EQUIPMENT .............................................................................................................. 14
Wiring diagram LGB22/LMG22/LME22 (BG550/BG650) 2-Stage............................................................................14
List of components LGB22/LMG22/LME22 (BG550/BG650) 2-Stage .....................................................................15
FunctionLGB22/LMG22/LME22 ................................................................................................................................15
Wiring diagram LMG22/LME22 (BG550/BG550LN/BG650) Modulating ..................................................................16
List of components LMG22/LME22 (BG550/BG550LN/BG650) Modulating ...........................................................17
Function LMG22/LME22 ............................................................................................................................................17
Wiring diagram LMG22 (BG550/BG550LN/BG650) Modulating with R316 ............................................................18
List of components LMG22 (BG550/BG550LN/BG650) Modulating with R316 ......................................................19
FunctionLMG22 ........................................................................................................................................................19
Control diagnosis under fault conditions and lockout indication..........................................................................20
Gas burner control: LGB ... ......................................................................................................................................20
Control diagnosis under fault conditions and lockout indication..........................................................................21
Gas burner control: LMG .........................................................................................................................................21
Control program when disruption; disruption display ...........................................................................................22
Gas burner control: LME.... ......................................................................................................................................22
Wiring diagram LFL1... (BG550/BG650) 2-Stage .....................................................................................................24
List of components LFL1... (BG550/BG650) 2-Stage ..............................................................................................25
FunctionLFL1... .........................................................................................................................................................25
Wiringdiagram LFL1... (BG550/BG550LN/BG650) Modulating ...............................................................................26
Listof components LFL1... (BG550/BG550LN/BG650) Modulating ........................................................................27
FunctionLFL1... .........................................................................................................................................................27
Wiring diagram LFL1... (BG550/BG550LN/BG650) Modulating with R316 .............................................................28
List of components LFL1... (BG550/BG550LN/BG650) Modulating with R316.......................................................29
FunctionLFL1... .........................................................................................................................................................29
Wiring diagram LFL1... (BG550/BG650) 2-Stage .....................................................................................................30
List of components LFL1... (BG550/BG650) 2-Stage ..............................................................................................31
FunctionLFL1... .........................................................................................................................................................31
Control programme under fault conditions and lockout indication LFL1.... .........................................................32
Technical data LFL1... ...............................................................................................................................................32
MEASURES AND CHECKS BEFORE START-UP....................................................................... 33
2-Stage or modulating burners ...............................................................................................................................33
Inner assembly .........................................................................................................................................................34
Inner assembly BG 550LN........................................................................................................................................35
DETERMINATION OF GAS VOLUME FOR THE INSTALLATION ............................................. 36
Example how to calculate the gas volume (natural gas) ......................................................................................36
GAS SOLENOID VALVE MVD ....................................................................................................... 37
OPERATION AND ASSEMBLY INSTRUCTIONS ........................................................................ 38
Doublesolenoid valve Type DMV-D.../11TypeDMV-DLE.../11 ..................................................................................38
OPERATION AND ASSEMBLY INSTRUCTIONS ........................................................................ 41
Gas pressure regulator Type FRS ...........................................................................................................................41
MULTI-BLOC, MB-ZRDLE 405 - 420 B01 .................................................................................... 43
Flow adjustment 2-stage design .............................................................................................................................44
Adjustment of governor ...........................................................................................................................................44
Adjustment of start gas flow ...................................................................................................................................44

MULTI-BLOC, MB-VEF 412 - 425 B01 ........................................................................................ 45
View...........................................................................................................................................................................45
Technical data...........................................................................................................................................................46
Mounting instruction - impulse lines PL, PF and PBr .............................................................................................46
Adjustment possibilities ..........................................................................................................................................46
DAMPER MOTOR 2-STAGE......................................................................................................... 47
Air adjustment ..........................................................................................................................................................47
Releasing button.......................................................................................................................................................47
DAMPER MOTOR MODULATING ............................................................................................... 48
Air adjustment ..........................................................................................................................................................48
Releasing button.......................................................................................................................................................48
GENERAL INSTRUCTIONS ......................................................................................................... 49
Adjustment of burner ...............................................................................................................................................49
Service ......................................................................................................................................................................49
Flame monitoring and measurement of ionisation current...................................................................................50
UV-detector ...............................................................................................................................................................51
Adjustment of air pressure switch .........................................................................................................................52
Adjustment of min. gas pressure switch ...............................................................................................................52
Adjustment of max. gas pressure switch ..............................................................................................................52
LEAKAGE CONTROL, DUNGS VPS 504 SERIES 2 ................................................................... 53
Technical data...........................................................................................................................................................53
Programme sequence .............................................................................................................................................53
Program sequence schedule ..................................................................................................................................54
Electrical connection VPS 504 Series 02 ...............................................................................................................54
HANDING OVER OF THE INSTALLATION .................................................................................. 55
Fault location, functional troubles ...........................................................................................................................55
DECLARATION OF CONFORMITY.............................................................................................. 56
FAULT LOCATION GUIDE ............................................................................................................57
Gas burner ................................................................................................................................................................57

6172 155 16 07-01
DESCRIPTION
Warning - Read themanual beforeassemblingor commissioning.
- Thecontents ofthis manualare tobe observedby allwho workfor any
reasoN on the unit and its appertaining system parts.
- Thismanual isintended especially forauthorised personnel.
- Thismanual istoberegardedas partof theburnerandshallalways be
availablenear theplace ofinstallation.
- Theburner is onlyto be installedby qualifiedpersonnel
- Checkthat the burneris suitable forthe boiler´s powerrange.
- The burner is to be installed such that it complies with any local
regulationsrelating to electricalsafety,boilers and fueldistribution.
- Checkthat the burneris approved forthe gas qualityintended used.
- No burner safety systems are to be disengaged.
- The fitter is to ensure that the boiler room is supplied with fresh air
ventilation that is sufficient in accordance with local standards.
- Beforeservicing, shut off thefuel supply andthe power supply tothe
burner.
- Theouter temperature ofthe boiler´scomponents can exceed60 °C.
- Check that the guide stop is installed before servicing.
- Takegreat care when servicing.Trapand pinchrisks can be present.
- Theboiler´s soundlevel canexceed 85dBA duringoperation. Useear
protectorswhen present inthe boilerroom.
- Theelectrical installation shallbe madeaccording to validregulations
for heavy current and in a professional way, so that the risk of leaking
gas,fire or personalinjury isavoided.
- Ifanother electricalconnection isused thanthe onerecommended by
Enertech, there might be a risk of material damage or personal injury.
- Noticeshouldbe carefullytakenby theinstallerthat noelectricalcables
orgas pipes getsqueezed or damagedwhen installing orat service
- Ifthe boilerisprovidedwithan openingdoor,this shouldbe interlocked
with a door switch.
- Ensurethat everything isdelivered andthatthere isno transport
damage.
- Ifthereisanythingwrongwiththedelivery,pleasereportittothesupplier.
- Anytransport damageshouldbe reportedto theforwarding company.
- Ensure that the size and capacity range of the burner are suitable for
theboiler.
- Powerdataonthe dataplatereferto theminimumandmaximum power
oftheburner.

!
Warning
Safety directions
Acceptance inspection
Preparations for installation

7172 155 11 04-01
Components
DESCRIPTION
2-Stage
1. Flamecone
2. Connectionflange
3. Guidebar
4. Fanwheel
5. Fanhouse
6. Shroudeddisc
7. Ignitionelectrode
8. Nozzle
9. Ionisationelectrode
10. Motor
11. Connectiongasfittings
12. Ignitiontransformer
13. Airdamper
14. Airdampermotor
15. Air pressure switch
16 Fuseholder
17. Indicating lamp Stage 2
18. SwitchI-II
19. IndicatinglampStage I
20. Switch 0-l
21. Time meter,stage1
22. Time meter,stage2
23. Contactorwiththermal
overloadprotection
24. Controlbox
25. Gastrain
26. MultiBloc

8172 155 12 04-01
Components
DESCRIPTION
Modulating
1. Flamecone
2. Connectionflange
3. Guidebar
4. Fanwheel
5. Fanhouse
6. Shroudeddisc
7. Ignitionelectrode
8. Nozzle
9. Ionisationelectrode
10. Motor
11. Connectiongasfittings
12. Ignitiontransformer
13. Airdamper
14. Airdampermotor
15. Air pressure switch
16. Fuseholder
17. Change-overswitch
increase-decrease
18. Change-overswitch
manually-automatically
19. Indicatinglamp
20. Switch 0-l
21. Timemeter
23. Contactorwiththermal
overloadprotection
24. Controlbox
25. Gastrain
26. MultiBloc

9172 215 60 05-01
Lengthof Flange Burnertube Burner tube
burnertube MeasureB Measure C MeasureD
BG650 BG650 BG650 BG650
Standard 1 316 286 185 162
Standard 2 416 386 185 162
Standard 3 516 486 185 162
TECHNICALDATA
Type designation BG550/BG550LN/BG650
Dimensions
* Theabove dimensionsare max.measurements. Dependingon the
componentsused, themeasurementsmay vary.
1(3)
Lengthof Flange Burnertube Burnertube Lengthof Flange Burnertube Burnertube
burnertube MeasureB Measure C MeasureD burnertube MeasureB Measure C MeasureD
BG550 BG550 BG550 BG550 BG550LN BG550LN BG550LN BG550LN
Standard 1 256 226 162 162 252 222 162 162
Standard 2 356 326 162 162 352 322 162 162
Standard 3 456 426 162 162 452 422 162 162
D
(ø210)ø254-280
ø190
M12
660*
400
658
B
C

290* 690*
321



  



321 






10 172 215 60 05-01
2(3)
Capacity Gas volume at a min. Gas volume at a max Max. inlet Rated inletpressures
kW output Nm3/h 1) output Nm3/h 1) pressurembar mbar
BG550
G20140-640 14,8 67,7 360 40
G25140-600 17,4 74,4 360 40
G30140-620 4,3 19,2 360 30-50
G31140-620 5,7 25,4 360 30-50
BG550LN
G20140-620 14,8 35,6 360 40
G25140-620 17,4 76,9 360 40
BG650
G20200-1125 21,2 119,0 360 40
G25200-1125 24,8 139,6 360 40
G30200-1125 6,2 34,9 360 30-50
G31200-1125 8,2 46,0 360 30-50
Output range
Type kWh/m31) kWh/kg
G20:Natural gasH 9,45
G25:Natural gasL 8,06
G30:Butane 32,24 12,68
G31:LPG 24,44 12,87
Connection 2) Motor Ignitiontransformer
BG550/BG550LN 0,75 kW Primary 230 V, 0,25A
Naturalgas LPG 230/400V50 Hz 50-60Hz60VA
11/2"-2" 3,1/1,8A Sec. 11kV Ampl
50 mA rms
33% ED in 3 min
BG650 1,5 kW Primary 230 V, 0,25A
Naturalgas LPG 230/400V50 Hz 50-60Hz60VA
11/2"-2" 5,7/3,3A Sec. 11kV Ampl
50 mA rms
33% ED in 3 min
TECHNICALDATA
1)Calorific value:kWh/m315°C 1013.25mbar (accordingto EN676)
2) Dimensionand capacity depending ongas qualityandavailable pressure

11 172 215 60 05-01
TECHNICALDATA
Working field
3(3)
BG550
140-640kW
BG550
BG550(G25)
Measured(test)
BG550LN
140-620kW
BG550LN
Measured(test)
BG650
200-1125kW
BG650
Measured(test)
Unbroken line is the approved
working field as per EN 676. Capacity kW
200 300 400 500 600 700 800
-2
0
6
8
10
12
14
4
2
Pressurein fire place
16
900 1000 1100 1200
Pressurein fire place
Capacity kW
100 200 300 400 500 600 700
-2
0
6
8
10
12
14
4
2
Capacity kW
2
Pressurein fire place
100 200 300 400 500 600 700
-2
0
6
8
10
12
14
4

12 172 415 15 06-01
SKELETONDIAGRAMS
2-stage or modulating burners
1. Ballvalve
2. Filter
3. Governor
4. Pressuregaugewithshut-offcock
5a. Gas pressure switch, mini
5b. Gas pressure switch, maxi
6a. Mainvalve,2-stage
6b. Safetyvalve
1) 7. Valveprovingsystem
8. Airdampermotor
9. Air pressure switch
10. Gasburnercontrol
Pos.5b, 7:Components notrequiredaccording toEN 676.
1)Requiredover1200 kWaccordingto EN676.
When Bio gas is used, Bentone shall always be contacted.

!
Incorporatedin theMultiBloc

13 172 205 94 04-01
MOUNTINGOFTHEBURNER
Fit the burner to the boiler by means of 4 bolts M12. For flange and bolt
dimensions see technical data.
Ifforsome reasonyouwant toseparatethe burnerfromthe gasflangewith
burnerhead andvalve packageyou candoso.
Do like this: - Removethe coverofthe fanhousing.
- Loosen the nut D of the gas assembly package.
- Loosenthe electric cablesto the valvepackage.
- Loosen the screws B on both sides.
- Loosen the stop bolt C on the pull rods.
- Loosentheignitioncableandtheionisationcablefromthegas assembly.
- Pull out the burner on the pull rods and put it in a suitable place.
Whenthe burnerheadandthegas flangehave beenfittedtotheboiler itis
easy to lift up the burner to where it belongs.
Inspection of gas assembly If the gas assembly needs to be inspected the pull rods are very useful.
Do like this: - Removethe coverofthe fanhousing.
- Loosen the nut D of the gas assembly package.
- Loosen ignition cable and ionisation cable of gas assembly.
- Loosen the screwAon both sides.
- Pull out the burner on the pull rods.
- Loosen the screws B on the gas flange.
- Withdraw the gas assembly.
Ensure that the O-ring between the gas assembly and the gas flange will
be in the correct position when the gas assembly is fitted again.
Adjustment of the position of the shrouded disc in the blast tube
Sometimes it is necessary to adjust the position of the shrouded disc in
the blast tube. This can be done with the screw E (can be adjusted when
the burner is in operation). If you turn the screw to the left the shrouded
disc will move forward (+), to the right it will move backward.
NOTE! Formaintenance ofthe brakeplate, nozzles,electrodes etc,when usinga
longdesign ofthe burnertube, youhave toremove the nozzle assembly
from the connecting pipe and move the assembly backwards in the
fanhousing (fromthe boiler).
Service position

14 172 435 80 08-01
ELECTRICEQUIPMENT
Wiring diagram LGB22/LMG22/LME22 (BG550/BG650) 2-Stage
1(2)

15 172 435 80 08-01
ELECTRICEQUIPMENT
2(2)
List of components LGB22/LMG22/LME22 (BG550/BG650) 2-Stage
A1 Gasburnercontrol S7 Mainswitch3-phase
B1 Ionizationelectrode S8 Air pressure switch
F1 Operationfuse S20 Mainswitch1-phase
F2 Operationfuse T1 Ignitiontransformer
H1 Lamp, low capacity X1 Connection terminalboard
H2 Lamp, high capacity X2 Earth terminal
(optional) X3 Plug-incontact, burner
K1 Motorcontactorwith thermal X4 Plug-incontact, boiler
overloadprotector X5 Plug-in contact, stage 2,
M1 Burner motor burner
M2 Damper motor, X6 Plug-incontact, stage2,boiler
L&SSQN75.624.A21B X7 Plug-in contact, 3-phase,
S1 Operatingswitch burner
S2 Operating switch, stage 2 X8 Plug-in contact,3-phase,
S3 Controlthermostat boiler
S4 Temperaturelimiter S9 Gaspressure switch
S5 Microswitchfor hingeddoor Y1 Gassolenoidvalve1
S6 Controlthermostat,stage 2 Y2 Gas solenoidvalve2
If S6 is missing, connection between T6 and T8.
Mainsconnection and fuse inaccordance with localregulations.
Function LGB22/LMG22/LME22
1.Operating switch ON-Thermostat ON-Gas pressure switch ON-Air
damper closed.
Acontrolismadethattheairpressureswitchdoesnotindicatefanpressure.
Thentheburnermotorstarts.
2.Air damper motor opens.
Theairdampermotoropensthedampertofullload.Acontrolismadethat
theair pressure switchindicates sufficient fanpressure.
3.Air damper motor closes.
Theairdampermotorclosestolowload.Thentheignitionsparkisformed.
4.Main and safety valves open
The gas is ignited. The ionization electrode indicates a flame.
5.The safety time expires.
Theignitionsparkgoesout.Thesafetytimeexpires.Ifthereisnoflameor
if for some reason the flame disappears after this time limit, the burner
control locks out.
6.Operating position.
Theburnerisinoperatingpositionandcannowchangeovertofullloadifthe
operatingswitch and the thermostatfor full loadare in positonON. The
burnercanalternatebetweenfullandlowloaddependingonsettemperature.
7.Stop.
Theoperationoftheburnercannowbeinterruptedbymeansoftheoperating
switch or the thermostat.
The control locks out. Theredlampinthecontrolislit.Restarttheburnerbypressingtheresetbutton.

16 172 435 43 08-02
ELECTRICEQUIPMENT
Wiring diagram LMG22/LME22 (BG550/BG550LN/BG650) Modulating
1(2)
DesignwithoutA3

17 172 435 43 08-02
ELECTRICEQUIPMENT
2(2)
List of components LMG22/LME22 (BG550/BG550LN/BG650) Modulating
A1 Gas burnercontrol S12 Change-overswitch,Increase-
A2 Powercontrol Reduce
A3 Valve, leak tester, S15 Control thermostat,3-pole
Dungs VPS 504 (only for 2-stagesliding)
B1 Ionizationelectrode S20 Mainswitch 1-phase
F1 Operationfuse T1 Ignitiontransformer
F2 Operationfuse X1 Connectionterminalboard
F3 Operationfuse X2 Earth terminal
H1 Operating lamp X3 Plug-in contact,burner
K1 Motorcontactorwith thermal X4 Plug-incontact, boiler
overloadprotector X7 Plug-incontact, 3-phase,
M1 Burner motor burner
M2 Damper motor, X8 Plug-in contact, 3-phase,
L&SSQN75.624.A21B boiler
S1 Operatingswitch X15 Plug-in contact,power
S3 Controlthermostat controller,burner
S4 Temperaturelimiter X16 Plug-incontact,power
S5 Microswitchfor hingeddoor controller
S7 Mainswitch3-phase S9 Gaspressure switch
S8 Air pressure switch Y1 Gassolenoidvalve 1
S11 Change-overswitch,Aut.-man. Y3 Safetysolenoidvalve
Mainsconnection and fuse inaccordance with localregulations.
Function LMG22/LME22 1.Operating switch ON-Thermostat ON-Gas pressure switch ON-Air
damper closed.
Acontrolismadethattheairpressureswitchdoesnotindicatefanpressure.
Thentheburnermotorstarts.
2.Air damper motor opens.
Theairdamper motoropensthe dampertomax. position.Acontrol ismade
thatthe airpressureswitch indicatessufficient fanpressure.
3.Air damper motor closes.
Theairdampermotorclosestomin.loadposition.Thentheignitionspark
isformed.
4.Main and safety valves open
The gas is ignited. The ionization electrode indicates a flame.
5.The safety time expires.
Theignitionsparkgoesout.Thesafetytimeexpires.Ifthereisnoflameor
ifforsomereasontheflamedisappearsafterthistimelimit,theburnercontrol
locks out.
6.Operating position.
Theburnerisinoperatingpositionandcannowchangeovertothecapacity
controlledbytheregulator.
7.Stop.
Theoperationoftheburnercannowbeinterruptedbymeansoftheoperating
switch or the thermostat.
The control locks out. The red lamp in the control is lit. Restart the burner by pressing the reset
button.

18 172 435 99 08-01
ELECTRICEQUIPMENT
Wiring diagram LMG22 (BG550/BG550LN/BG650) Modulating with R316
1(2)
DesignwithoutA3

19 172 435 99 08-01
ELECTRICEQUIPMENT
2(2)
List of components LMG22 (BG550/BG550LN/BG650) Modulating with R316
A1 Gasburnercontrol S8 Air pressure switch
A3 Valve, leaktester, S11 Change-overswitch,Aut.-man.
DungsVPS504 S12 Change-overswitch,Increase-
A6 PowercontrolR316 Reduce
A6(2) PT 100-sensor, S20 Mainswitch 1-phase
Thermocouple,current/voltage T1 Ignitiontransformer
B1 Ionization electrode X1 Connection terminalboard
F1 Operationfuse X2 Earth terminal
F2 Operationfuse X3 Plug-in contact,burner
F3 Operationfuse X4 Plug-in contact, boiler
F4 Operating fuse1A X7 Plug-in contact,3-phase,
H1 Operating lamp burner
K1 Motorcontactor with thermal X8 Plug-in contact,3-phase,
overloadprotector boiler
M1 Burnermotor X9 Plug-in contact,power
M2 Damper motor, controllerR316,burner
L&SSQN75.624.A21B X10 Plug-incontact,power
S1 Operatingswitch controllerR316
S3 Control thermostat S9 Gas pressure switch
S4 Temperaturelimiter Y1 Gassolenoidvalve1
S5 Microswitch for hingeddoor Y3 Safetysolenoidvalve
S7 Mainswitch3-phase
Mainsconnection and fuse inaccordance with localregulations.
Function LMG22 1.Operating switch ON-Thermostat ON-Gas pressure switch ON-Air
damper closed.
Acontrolismadethattheairpressureswitchdoesnotindicatefanpressure.
Thentheburnermotorstarts.
2.Air damper motor opens.
Theairdamper motoropensthe dampertomax. position.Acontrol ismade
thatthe airpressureswitch indicatessufficient fanpressure.
3.Air damper motor closes.
Theairdampermotorclosestomin.loadposition.Thentheignitionspark
isformed.
4.Main and safety valves open
The gas is ignited. The ionization electrode indicates a flame.
5.The safety time expires.
Theignitionsparkgoesout.Thesafetytimeexpires.Ifthereisnoflameor
ifforsomereasontheflamedisappearsafterthistimelimit,theburnercontrol
locks out.
6.Operating position.
Theburnerisinoperatingpositionandcannowchangeovertothecapacity
controlledbytheregulator.
7.Stop.
Theoperationoftheburnercannowbeinterruptedbymeansoftheoperating
switch or the thermostat.
The control locks out. The red lamp in the control is lit. Restart the burner by pressing the reset
button.

20 172 435 82 08-01
ELECTRICEQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LGB ...
The position of the cam can be read through the sight-glass. Under fault condition the
programmeisstoppedandthusalsothelock-outindicator.Thesymbolvisibleonthecam
indicates both the position in the programme run and the type of fault. The symbols are
explainedbelow:
Lock-out and Control Programme Indication
No start because the control loop is interrupted
Waitingfor thepre-purge tostart
Airdamper open(LGB22)
Faultcondition due toabsence of airpressure signal (LGB21),
airdamper notopen (LGB22)
Pre-purgeperiod
Fuelrelease(LGB22)
Faultcondition becauseno flamesignal availableafterelapseofthe 1stsafety
time
Releaseofthe 2ndfuelvalve(LGB21)
Releaseof theload controllerLR (LGB22)
Partialor full loadoperation (orreturn to theoperating position)
Connecting signal amplifier A1 = LGB
GP
R/W
LN
br bl rt sw
sw rtQ1=AGQ1...
QRA
11112 2
Resetting the burner controls
Control Programme in Case of Faults
Basically, the fuel supply is stopped immediately in the case of any fault. If the fault
conditionoccursata timebetweenstartandpre-ignition, whichisnotindicatedby symbols,
the cause is usually a switch-off by the air pressure switch LP or a too early, i.e. faulty,
flamesignal.
•Aftersupplyvoltage failure: Start-uprepetitionwithunabridgedprogramme.
•If premature flame signal at start of pre-purge time: Immediate lock-out.
•If contacts of air pressure switch LP have welded during tw: No start.
•If no air pressure signal: Lock-out when t10 has elapsed.
•If air pressure failure after elapse of t10: Immediate lock-out.
•If burner does not ignite: Lock-out when safety time t2 has elapsed.
•If flame is lost during operation: Immediate lock-out.
• For ignition spark proving with QRE: If noignition spark signal,the valves remain
closed and there is lock-out when t2 has elapsed.
Thecontrols canbereset immediatelyafter anyfaultcondition. Theprogramme revertsto
its start position and programmes the controls for restarting the burners.

21
Error code table Blink code Possible cause
2 x • No establishment offlame at the end of«TSA»
•• - Faultyor soileddetector electrode
- Faultyor soiledfuelvalves
- Pooradjustment ofburner
3 x • Air pressure monitor does not close
••• - «LP»faulty
- «LP»incorrectly adjusted
- Fan motordoes notrun
4 x • Air pressuremonitor does notopen or extraneous
lighton burnerstartup
•••• -«LP» faulty
- «LP»incorrectly adjusted
5 x • Extraneouslight duringpre-purging
••••• -Orinternaldevice fault
7 x • Lossof flameduring operation
••••••• -Poor adjustmentof burner
- Faultyor soiledfuelvalves
- Short-circuitbetweendetector electrodeand ground
8...17 x • Free
••••••••
..................
••••••••••
•••••••
18 x • Air pressuremonitor opens duringpre-purging or
operation
•••••••••• -«LP» incorrectlyadjusted
•••••••• -Four timesloss of flameduring operation(LMG25)
19 x • Faulty output contact
•••••••••• - Wiringerror
••••••••• - Externalpower supply onoutput terminal
20 x • Internaldevicefault
••••••••••
••••••••••
172 425 57 08-01
ELECTRICEQUIPMENT
Control diagnosis under fault conditions and lockout indication
Gas burner control: LMG ...
Diagnosis of cause of fault Afterlockout, theredfault LEDis steadyon. Forreadingthe causeof fault,
referto the blinkcode given inthe following table:
Duringthetimethecauseofthefault
isdiagnosed,thecontroloutputsare
deactivated.
- Theburner remainsshutdown
- Exception:faultstatussignal«AL»
atterminal10
Theburner isswitchedon onlyafter
a reset is made.
- Press lockout reset button for
0.5...3 seconds
AL
FS
RedLED on
Blink code
LED on (waiting time 10 s)
Fault
Press lockout reset button
for > 3 s Blink code Off
Approx.
3 s
Connecting signal amplifier A1 = LMG
GP
R/W
LN
br bl rt sw
sw rtQ1=AGQ2...
QRA
11112 2