Atlantic Boilers BK20 Installation and operation manual

BK SERIES
SUPER CONDENSING BOILERS
OPERATING & MAINTENANCE
INSTRUCTIONS
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com
FOR TECHNICAL HELP/ADVICE Call 0161 621 5960
or email [email protected]
FOR FULL PRODUCT RANGE & LITERATURE
Visit www.atlanticboilers.com
BK20 BK30

1
Contents
1 Overview – laws, regulations
and standards 2
2 Information 4
2.1 Identication(label)���������������������������� 4
2.2 Warningsymbols�������������������������������� 4
2.3 Importantinformation ������������������������� 4
2.3.1 Updatingservice �����������������������������4
2.3.2 Actuality�������������������������������������������4
2.3.3BK FullyCondensingBoiler����������4
2.3.4 Abouttheseoperatinginstructions��5
2.4 Validity������������������������������������������������ 5
2.5 Applicability ���������������������������������������� 5
2.6 Liabilitylimitations ������������������������������ 5
3 Safety instructions 6
3.1 Generalinformation���������������������������� 6
3.2 Safetyguidelines�������������������������������� 6
3.2.1 Riskoffrostdamage �����������������������7
3.2.2 Corrosion,boilerdamage����������������7
3.3 Norms,regulations����������������������������� 7
3.4 Operationandmonitoring������������������� 7
3.4.1 Burnerfaults/remoteunlocking �������8
3.4.2 Maintenance(servicing)������������������8
3.5 Safetyinstallations ����������������������������� 8
3.5.1 Water-sidesafetyinstallations���������8
3.5.2 Gas-sidesafetyinstallations �����������8
3.5.3 Labelandoperatinginstructions �����8
3.5.4 Additionalsafetyinstallations����������8
3.6 Wastedisposalandenvironmental
protection ������������������������������������������� 9
4 Function and description 10
4.1 Functionandoperatingprinciple������ 10
4.2 Boilerdescriptionanddimensions ��� 10
4.2.1 Trialrun,productioncontrol,
qualityassurance ������������������������� 10
4.2.2 Operatingcharacteristics,adjust-
ment ��������������������������������������������� 10
4.2.3 Materials����������������������������������������11
4.2.4 Safetyinstallations ������������������������11
4.2.5 Fluegassystem����������������������������11
4.2.6 Combustionair������������������������������11
4.2.7 Reservoir–servicewaterheater � 12
4.3 Unintendeduse�������������������������������� 12
4.4 Technicaldata ���������������������������������� 13
5 Delivery – transportation to
installation site 15
5.1 Safetyinstructions���������������������������� 15
5.2 Unloading,useofhoist��������������������� 15
5.3 Completenessofdelivery����������������� 15
6 Installation and connection 16
6.1 FullyCondensingBoiler ������������������� 16
6.2 Electricalconnection ������������������������ 16
6.3 Burnerinstallation ���������������������������� 17
6.4 Condensatedrainage����������������������� 18
6.5 Handingoverandservicing
instructions��������������������������������������� 18
7 Cleaning 20
7.1 Cleaningofcombustionchamber
andboiler ����������������������������������������� 20
7.2 Cleaningofuegaspasses������������� 21
7.3 Cleaningofuegaspassesbox
(open)����������������������������������������������� 21
7.4 Wetcleaning–neutralizationbox
andplasticheatexchanger �������������� 23
8 Terminal assignment and le-
gend to Conform 6.0 26
9 Spare parts BK20, BK30 28
10 ECconformitycertication 32
11 Guarantee 33
12 Notes 34

BK20/BK30
2
Overview–laws,regulationsandstandards
1 Overview – laws, regulations
and standards
General information:
Transportation,installation,mountingandelectri-
calconnectionsshouldbedonebyacompetent
person.Hebearsresponsibilityforaproper
implementationoftheseworks.
BeforeinstallationoftheFullyCondensingBoiler,
itisnecessarytoobtainpermissionofthelocal
heatingequipmentinspectionboardorother
competentauthorities.
Inordertopreventpenetrationofoxygenintothe
closedheatingsystem,itisadvisabletoperform
asystemdivisionbetweentheoorheating
andtheheatingsystembymeansofaheat
exchanger.
Itisadvisabletoinstallatemperaturesensorfor
theoorheatingsystem,inordertoprotectpipes
andoorcoveringfromoverheating.
Sincecorrespondingregulationsvaryindifferent
federallands,werecommend,beforeboilerins-
tallation,toconductconsultationswithcompetent
authoritiesandthelocalheatingequipmentins-
pectionboard.Combustionairsupplyshouldbe
performedinsuchawayastoexcludesuction
ofuegasesfromheatingsystemsworkingon
liquidorsolidfuels.
Thecombustionairsuppliedtotheunitshouldbe
freefromchemicalsubstancessuchasuorine,
chlorineorsulphur.Thesesubstancesarecon-
tainedinsprays,solventsandcleaningagents.
Theymaycause,inspeciccases,corrosionof
someunitcomponentsparticularlyinchimneys.
Beforetheunitisputintooperation,itisneces-
sarytocheckwithcompetentauthoritieswhether
condensateneutralizationisrequired.
Ifanychangesinthecontrolsystemoritssepa-
rateitemsaremade,thentheguarantee,incase
ofpossiblesubsequentdamages,shallbeinva-
lid.Itisrecommendedtoinstallasafetyvalve
with“H”identicationintotheheatingcircuit.
Themaximumpressureofthedischargepipeis
3bars.Ifthedischargepipeofthesafetyvalve
owsintotheseweragenetwork,itisnecessary
tointegrateadraintrap.
92/42/EWG
Efciencyguidelines
2006/95/EG
Electricalequipmentdesignedforusewithincer-
tainvoltagelimits
DIN EN 267:2011-02
Fan-assistedoilburner
DIN EN 676:2003 + A2:2008
Automaticforceddraughtburnersforgaseous
fuels
DIN EN 677:1998-08
Gas-redcentralheatingboilers
DIN EN 14 471:2005
Chimneys–systemchimneyswithplasticue
liners
DIN EN 15 034:2007-01
Chapters 4.3.1 and 4.4
Heatingboilers–condensingheatingboilersfor
fueloil
DIN EN 15 035:2007-05
Chapters 6.1, 6.3.1, 6.3.3.1
Heatingboilers–specialrequirementsforoil
redroomsealedunits
DIN 18 160-1 Supplement 3
Chimneys
DIN EN 12 828:2003
Safety-relatedequipmentofheatingsystems
2006/42/EG
Machineguidelines
DIN EN 303-1:2003-12
Chapters 4.1.5.10 to 4.1.5.12
Condensingheatingboilerswithfan-assisted
burner
DIN EN 303-2:2003/12
Chapters 3.2 to 3.5 and
Appendices A and B
DIN EN 303-3:2004-10
Chapters 5.4 to 5.5

3
Overview–laws,regulationsandstandards
DIN EN 304:2004/01
Condensingheatingboilers–testcodeforhea-
tingboilerswithfan-assistedoilburners
1 BImSchV (22.03.2010)
Regulationonsmallfurnaces
ATV A251
Removalofcondensatefromchimneys
DIN EN 60 335-1:2010
DIN EN 60 335-2-102:2010
Safetyofhouseholdandsimilarelectricalappli-
ances
2004/108/EG
Electromagneticcompatibility
Furthermore, for installation in Austria the
following norms and regulations are valid:
• ÖVE–Rulesandlocalrules
• Art.15aB-VG
• FAnlG–LawonfurnacesdatedJune12,
2011
Switzerland:
• Swissprovisions(BAFU)andcerticateof
conformityforoilandgas(LRVArticle20)
• Environmentalprotectionlaw
• Waterprotectionact
• Waterprotectionordinance
• Recommendationforsewagedrainagefrom
condensingheatingsystems
• SVGWgasguidelines
• SVGWwaterguidelines
• Recommendationconcerningtheminimum
chimneyheight(aboveroof)
• VKFreprotectionregulations
• SWKIguidelines
• SEVandESTIrules

BK20/BK30
4
Information
2 Information
2.1 Identication(label)
Product Id. Nr.
Heating output
Flue gas temperature
Max. operation temperature
Max. operation overpressure
Water content
Electrical connection
Protection class
Installation type
Degree of efficiency
Country of destination
Unit category
Boiler number
0085
Oil
Giersch (G)
Produkt ID-Nr.
CE-0032BQ2719
15 kW 19 kW 21 kW
CE0035CM103
15 - 21 kW
47°C / 54°C
100°C
3 bar
58 l
230 V~/50 Hz/175 W
IP40
C13/C33/C43/C53/C63/C83
99%
DE, AT, BE, CH, CZ, FR,
GB, PL, SE, SK, LU
see identification plate
gasburner
see boiler base in front left
Firing capacity
Giersch (GBZ)
DIN CERTCO Reg.Nr.
5G1049/11S
UNIT BK20 fully condensing boiler with fan
Gas
Weishaupt (WG) 15 -21 kWWeishaupt (W)
Produkt ID-Nr.
CE-0036 0362/05
Produkt ID-Nr.
CE-0085AU0353
MHG (M)
Produkt ID-Nr.
CE-0032BR2740
Set on kW
Product Id. Nr.
Heating output
Flue gas temperature
Max. operation temperature
Max. operation overpressure
Water content
Electrical connection
Protection class
Installation type
Degree of efficiency
Country of destination
Unit category
Boiler number
0085
Oil
Giersch (G)
Produkt ID-Nr.
CE-0032BQ2719
22 kW 26 kW 32 kW
CE0035CM103
22 - 32 kW
47°C / 54°C
100°C
3 bar
70 l
230 V~/50 Hz/95 W
IP40
C13/C33/C43/C53/C63/C83
99%
DE, AT, BE, CH, CZ, FR, GB,
PL, SE, SK, LU
see identification plate
gasburner
see boiler base in front left
Firing capacity
Giersch (GBZ)
DIN CERTCO Reg.Nr.
5G1049/11S
UNIT BK30 fully condensing boiler without fan
Gas
Weishaupt (WG) 22 - 32 kWWeishaupt (W)
Produkt ID-Nr.
CE-0036 0362/05
Produkt ID-Nr.
CE-0085AU0353
MHG (M)
Produkt ID-Nr.
CE-0032BR2740
Set on kW
2.2 Warningsymbols
Intheseoperatinginstructionsthefollowingwar-
ningsymbolsareused:
Disregardingtheinstructionsmarkedwiththis
symbolmayresultinadangerforpersonsand
propertydamage.
Attention
Thissymbolspeciesinformationrelatedto
boileroperationaswellastocorresponding
organizationalandtechnicalissues.
Information
2.3 Important information
Careshouldbetakentoensurethat,depen-
dingonthefuelandboilertype,theapprop-
riateoperatingmodeisselected(SeeOpe-
ratinginstructionforConform6.0andInitial
commissioningmanual).Failuretocomply
withthisprovisionwillresultinexpirationof
theguaranteeontheboilerbody!Withoutthe
submittedcommissioningreport,theguarantee
agreementwiththecompanyshallnot
enterintoforce.
Information
Inordertopreventpenetrationofoxygeninto
theclosedheatingsystem,itisrecommended
toperformsystemseparationbetweentheoor
heatingandtheheatingsystem,bymeansofa
heatexchanger.
2.3.1 Updating service
Theseoperatinginstructionsarenotsubjectto
modications!
Themanufacturerreservestherighttomake
atanytimemodicationsandimprovementsin
termsoffurthertechnicaldevelopment,toall
technicaldata,informationandimages.Any
claimsforafreemodicationorimprovementof
alreadydeliveredFullyCondensingBoilersare
excluded.
2.3.2 Actuality
Allreferencestolaws,regulations,guidelines,
normsetc.mentionedintheseoperatinginstruc-
tions,arecorrectasoftheperiodoftheinstruc-
tions’drafting(may2012).
2.3.3 Fully Condensing Boiler
Thecopyrightfortheseoperatinginstructions
remainswiththecompany.

5
Information
2.3.4 Abouttheseoperatinginstructions
Forreasonsofclarity,theseoperatinginstruc-
tionsdonotcontainalldetailedinformationwith
regardtopossibleconstructionalandequip-
mentversionsoftheFullyCondensingBoilerin
question.Atthesametime,itisnotpossibleto
foreseeeveryimaginablecaseofinstallation,
conguration,operationand/ormaintenance.In
theeventyouwillrequireadditionalinformation
orsomespecicproblemswillarisethatarenot
addressedindetailintheseoperatinginstruc-
tions,pleasereferforinformationtoacompetent
heatinginstallationcompanyordirectlytothe
company.
2.4 Validity
Theseoperatinginstructionsarevalidonlywith
respecttotheFullyCondensingBoilermarked
withtheproductionnumber(SeeLabel).When
makingrequestsandorderingspareparts,ple-
asealwaysstatethesemodel(factory)numbers!
Theseoperatinginstructionscontaininformation
abouttheFullyCondensingBoileranditsitems
ofequipment,insofarasthesebelongtothe
scopeofdelivery.Statementsaboutequipment
notbelongingtothescopeofdeliveryareinten-
dedpurelyforinformationalpurposes.Alegal
claimforthisequipment(options)isexcluded.
Shouldmaterialsofthethird-partymanufacturers
beattachedtotheseoperatinginstructions(ope-
ratinginstructionsofthirdparties),sothe
companycannotassumeanyliabilityfortheir
correctness,validity,technicaldataetc.
2.5 Applicability
Allinformationprovidedhereinwithrespectto
theworksafetyandenvironmentalprotection
correspondswithEU/ECregulationsand/orwith
theEquipmentSafetyAct(GSG)oftheFederal
RepublicofGermany.Thecustomer/operator
should,underhisorherownresponsibility
• Considerthelaws,regulations,rules,gui-
delines,technicalinstructionsetc.specied
above,asabasisforsafehandlingand
maintenance,
• Measuretheircompliancewiththelocal
regulations,and
• independentlyinstallandadjustadditional
accessoriesprescribedbythelocalcom-
petentauthoritiesandcarryoutappropriate
worksandmeasuresusingtheresourcesof
aspecialistcompany.
2.6 Liabilitylimitations
Thecompanytakesnoresponsibilityfor
damagestothedeliveredFullyCondensingBoi-
lercausedbythefollowingreasons:
• Ignoranceoforfailuretocomplywiththese
operatinginstructions.
• Insufcientlyqualiedmaintenancestaffor
inadequatelyinstructedservicepersonnel.
• Naturalwearandtear!Fordetailssee
DIN31051Part4,EN13306„Maintenance
terms“.
• FaultyornegligenthandlingoftheFully
CondensingBoilerand,inparticular,omis-
sionoftakingmeasuresastosafeand
proper
◦ Installationandcommissioning,
◦ Operationandmonitoring,and
◦ Maintenance(servicing).
• Defectiveinstallationworksand/ordefective
electricalinstallation.
• Chemical,electrochemicalorelectricalinu-
ences.
• Forsubstantialthird-partyproducts,the
liabilityofthecompanyislimitedto
theassignmentofliabilityclaimstowhichthe
companyisentitledagainstthe
supplierofthethird-partyproducts.
Priortoeachcommissioningandmaintenance
cycle,thefurnaceshouldbecheckedforgas
sidemalfunctionsandleakproofness.
Attention

BK20/BK30
6
Safetyinstructions
Theoperatinginstructionsshouldbepositioned
visiblyadjacenttotheFullyCondensingBoiler.
Theconnectionandadjustmentoftheheating
systemshouldbeperformedbyaqualiedplum-
ber.Theheatingtechnicianshouldfamiliarizethe
operator(s)oftheFullyCondensingBoilerwith
itsfunctionsandservicing!Intheeventofany
faultsordisturbancesintheoperationoftheFully
CondensingBoiler,pleasenotifytheheatingins-
tallationcompany!
If you smell gas, there is a risk of explosion
• Avoidopenreandsparkformation(for
examplewhenturningonandoutlightsand
electricalappliances)
• Closetheshut-offgasvalveandnotifythe
heatinginstallationcompany
If you smell exhaust fumes, there is a risk of
poisoning
• Switchofftheunit
• Opendoorsandwindows
• Notifytheheatinginstallationcompany
Ifthereisariskofre
• Immediatelyputoftheheatingemergency
switch(incaseitisoutsidetheinstallation
room)
• Closetheshut-offgasvalve
• Intheeventofare,usethesuitable
reextinguisher(reclassBpursuantto
DIN14406)
Dimensionaldistancesfromtheboilertocom-
bustibleitemsormaterialsshouldcorrespond
tolocalreprotectionnormsbuttheyshouldbe
atleast200mm(seeFig.1).Otherwise,thereis
dangerofare.
3 Safety instructions
3.1 General information
Theseoperatinginstructionsarevalidexclusively
fortheBK FullyCondensingBoiler.Thestaff
inchargeofinstallation,commissioningormain-
tenanceshouldreadtheoperatinginstructions
priortostartingtheseworks.Therequirements
containedintheseoperatinginstructionsmust
beadheredto.Intheeventofanon-compliance
withtheoperatinginstructions,theguarantee
claimvis-à-visthecompanyshallexpire.
3.2 Safety guidelines
ForaproperandreliableoperationoftheFully
CondensingBoiler,itisnecessarytoobserve
thefollowingsafetyguidelines.
Attention
• Installation,commissioningandmainte-
nanceoftheFullyCondensingBoilershould
beperformedonlybyqualiedandtrained
personnel.
• Workswithelectricalcomponents(for
example,adjustment)aretobeperformed
onlybyqualiedelectricians.
• Duringinstallationofelectricalequipment,
theprovisionsofVDE(GermanAssociation
forElectrical,Electronic&InformationTech-
nologies)andofthelocalelectricitysupply
companyarerelevant.
• TheFullyCondensingBoilermaybeope-
ratedonlywithinthepowerrangeindicated
inthetechnicaldocumentationofthecom-
panyandoftheburnermanufacturer.
• TheintendeduseoftheFullyCondensing
Boilercomprisesitsexclusiveusefor
hotwaterheatingsystemspursuantto
DINEN304andDINEN303-3.
• Itisstrictlyprohibitedtobypassorinany
wayremoveorswitchoffcontrol,safetyand
monitoringequipment.
• TheFullyCondensingBoilermaybeopera-
tedonlywhenitssystemsareintechnically
perfectcondition.
• Malfunctionsanddefectswhichaffectsafety
(ormayaffectit)shouldbexedinaprompt
andexpertmanner.
• Defectivepartsandcomponentsmustbe
replacedonlywithoriginalsparepartsofthe
company.

7
Safetyinstructions
combustion,underassistanceofaspecialized
installingcompany.
If,afteracleaning,repeateddustexposureshall
stillbepossible,(forexample,duetospongy
chimneyjoints),taketheappropriatemeasures
(forexample,cleanthechimney).
Modicationofthegasheatingsystem
Theoperatormayundernocircumstancesmake
changesintheheater,pipesforgas,electricity,
water,airsupplyanduegas.
Theseworksmaybeperformedonlybyahea-
tingtechnician,toeliminatetheabovementioned
hazards.
3.3 Norms, regulations
• Theboilermustbeservicedinregularinter-
vals.Werecommendtoconclude,forthis
purpose,amaintenancecontract.
• TheFullyCondensingBoilersmaybeins-
talledandoperatedonlyintheboilerand
installationroomsasrequiredbylocalregu-
lationsandguidelines(FeuAO)withrespect
tofurnaces.
• ForAustriaarealsorelevanttheprovisions
oftheAustrianGasandWaterIndustry
AssociationÖVGWTRGas(G1),Building
regulationslawB-VG,Art.15Aandalsothe
LawonfurnacesFAnlG.
• Swissregulations(BAFU)andtheDeclara-
tionofConformityforoilandgas(LRVArt.
20)
Burners
Fullyautomatedfan-assistedoilburnerspursu-
anttoDINEN267.Fullyautomatedfan-assisted
gasburnerspursuanttoDINEN676.Duringthe
commissioningoftheburner,theappropriate
operatinginstructionsoftheburnerareessential.
Astothecommissioningoftheburner,seecorre-
spondingoperatingandassemblyinstructions.
Fuel
ELheatingoilpursuanttoDIN51603.
NaturalgasinaccordancewiththeCodeof
PracticeoftheGermanTechnicalAssociationfor
GasandWater(DVGW)G260/Iandalsopursu-
anttolocalnorms.
3.4 Operation and monitoring
PutintooperationtheFullyCondensingBoiler
onlyafterallworksrelatedtoinstallationand
connectionarecompletedand/oraftercomple-
tionofpossiblepreventivemaintenancemeasu-
res.Duringtheinitialcommissioningitisneces-
sarytomonitortheautomaticprocessofcontrol
Fig. 1: Alateraldistanceofminimum600mmshouldbe
maintainedeitherontheleftorontherightside
oftheboiler.
Aconnectinglineshouldbeleadtothechimney
asshortaspossibleandascending.Thisisthe
onlywaytoensuretheoptimumperformance.
Thepipesshouldbecarefullysealed!Ifthe
uepipesarenotproperlysealed,theuegas
mayescapeandcausetheriskofsuffocation.
Itisadvisabletousetheuepipebendswith
cleaningopenings,tobeabletocleantheue
pipes.
3.2.1 Risk of frost damage
TheFullyCondensingBoilerandstoragewater
heaterarefrostprotectedthroughthecontrolling
system.Sincetherisk(forexample,duringa
long-lastingelectricalpoweroutage)offrost
damagecannotbeexcluded,theFullyConden-
singBoilersandstoragewaterheatersshould
beonlyinstalledinthefrost-protectedrooms.If,
duringlongshutdownperiodsandwithinopera-
tiveheatingsystem,theriskoffrostdangershall
remain,aheatingtechnicianshouldemptythe
FullyCondensingBoiler,reservoirandheating
system,inordertopreventwater-piperuptures
causedbyfrost.
3.2.2 Corrosion,boilerdamage
Thecombustionairmustbefreefromdust(for
example,depositedsolidfuelsorconstruction
dust)aswellasfromhalogenatedhydrocarbons
(contained,forexample,inspraycans,solvents,
washingandcleaningagents,paintsorglues).
Otherwisepittingcorrosionoftheboilerbodyis
possible.Ifthecombustionairisbeingsuckedin
frominoperativereplaceorshaft,itisnecessary
toremoveresidualsofformeroilorsolidfuel

BK20/BK30
8
Safetyinstructions
Beforecommencementofanyworksonthe
electricalequipment,makesurethatthevoltage
iscompletelyswitchedoff.Damaged,burned,
frayedcablesaswellaslooseanduntightcable
connectionsmustbeimmediatelyreplacedbya
skilledelectrician.
Intheeventofadefectivefuse,theymustbe
replacedonlywiththeoriginalfuseswithprescri-
bedamperage.
3.5 Safety installations
ThecommissioningoftheFullyCondensing
Boilerwithoutaproperlyfunctioningsafety
installation(orwithanimproperlyfunctioning
safetyinstallation),isnotpermitted.
Attention
3.5.1 Water-side safety installations
SafetyinstallationspursuanttoDIN12828such
asthesafetyvalve,safetytemperaturelimiter
andtemperaturecontrolleraredescribedin
detail.
3.5.2 Gas-side safety installations
Tothesesafetyinstallationsbelongstheuegas
safetytemperaturelimiter(STL).
3.5.3 Labelandoperatinginstructions
ThelabelmustnotberemovedfromtheBK
FullyCondensingBoiler;itshouldbekeptina
wellreadablecondition.(Theoperatinginstruc-
tionsmustbeplacedvisiblyinthesameroom
wheretheboilerislocated).
3.5.4 Additional safety installations
Thesesafetyinstallationsinclude,amongother
equipment.
• Furnaceemergencyswitch
• Heatingoillockingdeviceinthefurnace
• Impermeablecovers/grillsinconformity
withDINEN294ontheuegassystem
(uponarrangementasanoutdoorchimney)
andontheairsupplyconnectionshould
beinstalledbyatechnician,underhisown
responsibility,incompliancewithlocalregu-
lationsandguidelines(FeuAO).
TheBKFullyCondensingBoilerservesexclu-
sivelyforheatgenerationandalsoforwater
heatingpursuanttoDIN12828.Theowtem-
peratureismaximum80°C,thetechnicaldata
ofvariousboilertypesareindicatedonthecor-
respondinglabels.Onlythoseliquidorgaseous
fuelsthatareindicatedintheorderconr-
mationmaybeusedasworkingmaterials.
functionsandtocheckthetightnessoftheFully
CondensingBoileranditsconnections.
Intheeventofunusualoperatingperformance
inthefunctioningoftheFullyCondensing
Boiler,forexample,malfunctionsorfaultsin
energysupply,theunitmustbeimmediately
shutoff.
Attention
Determinethecauseoftheproblemorfault
andxitinasafeandsecuremanner.Startre-
commissioningonlyaftercompleteeliminationof
faults.
3.4.1 Burner faults/remote unlocking
Incaseofaburnerdefectorfault,theredpush
buttoninthecontrolpanelwillash.Pressthe
buttonshortlytounlocktheburner.Shouldthe
burnerfaultreappear,callaqualiedspecialist.
Fig. 2: Donotpressthepushbuttonduringnormal
burneroperation!
Pushbuttonofremoteunlocking
3.4.2 Maintenance (servicing)
Itisstronglyrecommendedtoconsider,during
eachinspectionand/orscheduledmaintenance
works,suggestionswithrespecttocausesof
faultsduetosuperuousmeasuresand,inparti-
cular,toboileropening,mostlyunnecessary.
AllconnectionsattheFullyCondensingBoi-
ler,burner,controlpaneletc.arepluggableor
screwable.
Whenreplacingsafetyinstallationsmakesure
thatthenewcomponentscorrespondtothe
originalpartsandaretestedinconformitywith
DINEN14597orDIN12828.
Use only genuine components and parts deli-
veredbythe company.
Duringanyoperations,refrainfromusingexces-
siveforce–ifitgoesbeyondwhatisnecessary
toconnectordisconnectboltedconnections–
thereisariskofmaterialdamage!
Itisnotallowedtomoistentheplasticcompo-
nents(secondaryheatexchanger,uegas
system,hoses,sealsetc.)withoils,solvents,
cleaningagentsorotherchemicalsubstances.
Allworksontheelectricalequipmentshouldbe
performedonlyafterhavingdisconnecteditfrom
thepowersupplyandonlybyaskilledelectri-
cian.

9
Safetyinstructions
Duringdisposalworks,usesafetygloves.Thedenitionismadeincompliancewith1.
BImSchV(1stFederalGermanrulingonemissi-
onscontrol)condensingboilers:theseareheat
generatorswhichutilizebycondensation,asa
resultoftheirdesign,theheatofvaporizationof
watervapourcontainedinuegases.Thisdeni-
tiondifferentiatestheheatgenerationwithutiliza-
tionoftheheatofvaporizationofwatervapourin
uegasesfromtheheatgeneratorswithoutsuch
utilization.
3.6 Waste disposal and environmen-
tal protection
Thefollowingsubstanceswhichmayoriginate
duringmaintenanceandrepairworksshouldbe
disposedof–underpersonalresponsibilityofthe
heatingtechnician:
• Sediments,forexample,afterabreakdown
• Heatingoilrests
• Cleaningagentsandconsumables
• Solidwaste(replacedcomponents)ofall
types
Alldisposalworksshouldbeconductedas
prescribed,alsopursuantto1.BImSchVand
GermanWasteManagementLaw(AbfG)and
incompliancewiththeprovisionsoftheWater
ResourcesAct(WHG)aswellaswithlocaland
regionalregulations.
Liquidwastesuchaspotentialtoxicsubstances
capableofendangeringgroundwater(WHG)
shouldbecollectedinspecialclosedcontainers
andallocatedfortheproperdisposal.
Donotallowworkingmaterials(heatingoil)to
inltrateintothegroundorseweragesystem.
Potentialoilleakagesshouldbeimmediately
boundinconformitywiththeAccidentprevention
regulations(UVV1.)orwipedout.
Duringdisposal(dismantling/scrapping)ofthe
boiler,itscomponentsshouldbedividedin
accordancewiththeirmaterials.
Aftercompletecleaningandemptyingoftheneu-
tralizationboxandduringsubsequentdismant-
ling,thefollowingmaterialsmayberecovered:
• Metals,steel,malleableiron
• Insulationmaterials,mineralwool
• Plastics:polypropylene,PVC,cableinsula-
tion
• electrical/electroniccomponents
Thecomponentsshouldbecollectedseparately,
inaccordancewiththematerials;thenon-recyc-
lableresiduesshouldbedisposedofpursuantto
theGermanWasteManagementLaw(AbfG).

BK20/BK30
10
Functionanddescription
ofelectrical/electronicmeasuringandcontrol
devices.
Maximumambienttemperature: 40°C
Minimumambienttemperature: 1°C
Theinductedcombustionairshouldbedust-free
andofnormalquality(temperature,humidity
etc.).
TheBKFullyCondensingBoilerisoperative
andreliableprovidedthatitisusedproperly,the
agreedoperationaldataareadheredtoandonly
prescribedfuelsareused.
Itisnecessarytotakeintoconsiderationpossible
malfunctions,if:
• installation,adjustmentandsubsequenttrial
operationwerenotcarriedoutproperly.
• itisimpossibletomaintaintheover-pres-
sureinthefurnace(resistanceintheue
gassystemorduringtheuegassuction).
• theheatexchangerwasnotlledwithwater
onthegassidepriortocommissioningor
afteralongoperationalstandstill.
• thefueldoesnotcorrespondtotheusual
specications.
• thesafetyinstallations,notwithstandingthe
prohibitiononalterations,weremisplacedor
bridged.
• theelectricalconnectiondataandnet-
workconditionsdonotcorrespondtothe
manufacturer’sdata.
• thefurnacewasputintooperationimmedi-
atelyafterorduringllingoftheheatingoil
storagetanks.
4.2 Boiler description and dimensi-
ons
4.2.1 Trial run, production control, qua-
lity assurance
TheinstallationoftheFullyCondensingBoiler
mustbeperformedbyaqualiedstaff(aheating
technicianandanelectrician).Withoutthecom-
missioningreport,theguaranteeagreementwiththe
companyshallnotcomeintoeffect.
Thenintroductiontotheunit,trialrunandhando-
vertotheoperatortakeplace.
4.2.2 Operating characteristics, adjust-
ment
TheBKFullyCondensingBoileristtedwith
thefullyautomaticelectroniccontrolsystem
which
4 Function and description
4.1 Function and operating principle
InthefurnaceoftheBKFullyCondensing
Boiler,thecombustionheatfromoilorgasis
transferredtothecombustionchamberwashed
roundbytheboilerwaterandtotheprimaryheat
exchangerwhichisconnectedtothecombustion
chamberfromthewaterside.Thehotuegases
arrivethen,undertemperaturesbelow85°C–
thatis,abovethedewpoint–intothesecondary
heatexchangerandtheyarecooleddown,in
accordancewiththeexternalairtemperature,to
about30°C–48°C.Thedewpointoftheue
gasistherebynotreachedandbothsensibleand
latent(hidden)heatisdelivered,throughsteam
condensation,tothesecondaryheatexchanger
ortothecombustionairpassingthroughitin
counterow.
Theuegasarrives,afterowingthroughthe
secondaryheatexchanger(counterow)with
verylowtemperaturetotheuegaspipe.The
freshairnecessaryforcombustionissuckedin
throughtheannulargapoutsidetheuegaspipe
(roomsealedoperation).Therequirednegative
pressureisgeneratedbytheburnerfan.Prior
toentryintothecombustionchamber,thecom-
bustionairispreheatedinthesecondaryheat
exchangeragainsttheuesgases,thuscontribu-
tingtothehighefciency.
Thecondensateaccumulatedinthesecondary
heatexchangercontainsthemostpollutants
fromthecombustionuegases.Itaccumulates
inthesecondaryheatexchangerandisthen
fedthroughapipeconnectiontotheneutraliza-
tionbox.Thecondensatepassesthroughthe
mineralgranulateandisthen,intheneutralized
condition,dischargedintoawastewaterpipeor
sewagesystem.
Owingtotemperaturemonitoringwiththesafety
temperaturelimiter(STL)andtheimplementation
ofstandards,thefunctionoftheBKFullyCon-
densingBoilerisself-retainingoverthewhole
combustiongaspath.
Theworkswhicharenotdescribedinthese
operatinginstructionsarereservedtothestaff
ofthemanufacturer.
Information
Functional criteria
Theambientconditionsintheinstallationroom
oftheBKFullyCondensingBoilermustnot
exceedthenormalvaluesfortheoperation

11
Functionanddescription
◦ Connectingpiecesofseamlesstubesin
accordancewithDIN1629
• Thesecondaryheatexchanger
 PP/PP
• Thermalinsulation/outercover
◦ 3-sidedmineralwool80mm
◦ Front–mineralwool40mmwithcoating
integratedintothefrontdoor
◦ Boilercasing–steelplate1,25mm,scre-
wedtogetherandpowder-coated.
4.2.4 Safety installations
TheBKFullyCondensingBoileristtedpur-
suanttoDINEN304andDINEN303withthe
followingsafetyinstallations.
• Safetytemperaturelimiter(STL)boiler
100°C.ThisSTLmonitorstheboilertempe-
rature.
• Safetytemperaturelimiter,heatexchanger
90°Cprotectsfromexcessiveuegastem-
peraturetransfer.Whenapre-settempera-
turethresholdisreached,thetemperature
limitersshutdowntheheatgeneratorand
lockit.Re-startingisonlypossiblewiththe
helpofatool.
• Thesafetytemperaturelimitersare
testedandmarkedinaccordancewith
DIN EN 14 597�
4.2.5 Flue gas system
Theuegassystemisusedtoremoveresidual
low-pollutionuegaseswiththetemperature
of<60°C(monitoredbyatemperaturesensor)
outsidethebuilding,overtheroof.Itismarked
withitsownlabelcontaininginformationabout
themanufacturerandtheapprovalnumber.The
uegassystemshouldbeinstalledbyeffortsofa
locallyapprovedheatinginstallercompany,with
theuseofpipesandttingsmadeofplasticcerti-
edforapplicationinconstructionandconnected
totheuegasconnectingpieceoftheFullyCon-
densingBoiler.
Thecombustiongaspathoftheboilercorres-
pondstothebasicstandards.
4.2.6 Combustionair
Thecombustionairistakendirectlyfromthe
freeatmosphere;itispreheatinthesecondary
heatexchangerandsuppliedtotheburner.
Iftheuepipeisarrangedinaduct(unused,
cleanedchimney),thentheremainingfreespace
inthisductisusedforcombustionairsupply.
Inthecasethefreespacemaynotbeused,in
compliancewiththelocalrequirements,sothe
• controlstheoperatingperformanceincon-
formitywiththeheatdemandoftheheating
installation,and
• assafetycircuit,canshutdowntheinthe
eventofanymalfunctionsonthewateror
gasside.
• Thepressuretransmitterservesforthefun
regulationandcontrol.
The Conform 6.0controlsystemisintegra-
tedintheFullyCondensingBoiler.
Whenstudyingtheinformationintheseoperating
instructions,pleasealwayscomparetheindica-
tedtypedesignationwiththedataonthecontrol
panelofthedeliveredboiler.
Thesystemhasintegratedfunctionsfor:
Boiler temperature
Theboilertemperatureismaintainedbywayof
switchingtheburneron/off–atsome55°Cto
80°C,butalways>55°C(seealsotheoperating
instructionsofthecontrolsystem).
Heatingcircuittemperature
Thetemperatureattheheatingcircuitowis
regulatedthroughcontrolsystemtothepreselec-
tedvalue.Itispossible,byvirtueoftheoperating
software,atanytimetolowerortopredetermine
theheatingcircuittemperature(operatingmode
selection).
Service water temperature
Thewatertemperatureintheseparatereservoir
forservicewaterheating(reservoiroption)is
maintainedbywayofswitchingon/offtherespec-
tiveservicewaterpumpatthelevelpresetinthe
controlsystem.Thisprocessisinterruptedifthe
returnboilertemperaturefallsbelow50°C(boiler
protection).
Flue gas temperature
Theuegastemperatureismonitoredby
theSTL90°Clocatedinthesecondaryheat
exchanger.
Ambienttemperatureregulation
Theambienttemperatureandthetemperature
oftheheatingcircuitowarerecordedbysen-
sorsanditiscompared,bymeansofthecontrol
system,withthepredeterminedheatingcircuit
temperatureandthesetbacktemperature;if
necessary,itisbeingcorrected.
4.2.3 Materials
ThecomponentsoftheBKFullyCondensing
Boilercorrespondtothematerialrequirements
andthetestprotocol.
• Theprimaryheatexchanger
◦ SteelS235JR

BK20/BK30
12
Functionanddescription
combustionairshouldbesuckedinthroughan
openingintheexternalwallandthecorrespon-
dingpipeandthensuppliedtotheairinletofthe
secondaryheatexchanger.Thecombustionair
heatedfromcondensinguegasesinthesecon-
daryheatexchangercomesoutattheboiler
front-sidefromthesecondaryheatexchanger
andpassesthroughaspiralhosetotheinlet
openingoftherespectiveburner.
4.2.7 Reservoir – service water heater
Theconnectionoftheservicewaterheateris
madeattheinletandtheoutletoftheBKFully
CondensingBoiler.Aheatingtechnicianshould
installaservicewatercirculationpump.The
respectiveelectricalsocketsareavailableatthe
boilercontrolpanel(seecircuitdiagraminthe
descriptionoftheConform6.0system).A
sensorformeasuringtheservicewatertempera-
tureisattachedtothecontrolsystem.
4.3 Unintended use
TheBKFullyCondensingBoilermaynotbe
used:
• forthefunctionsotherthanindicatedin
Chapter3.5.4.
• inothersystemconguration.
• withvaluesdifferentfromthoseindicatedon
thelabel.
• withfuelsotherthanindicatedintheorder
conrmation(OC).
• withoutnegativepressureatthecombustion
gaspathrequiredforoperatingpurposes.
Theriskforthepersons,theFullyCondensing
Boilerandotherequipmentcarriestheheating
technicianortheoperatoroftheheatingsystem.
Withuegasfan
Boiler type BK20 BK30
Fuel Heatingoil Gas Heatingoil Gas
Fluegaspipe DN 80/125 80/125 80/125 80/125
Duct system
Pipelength(vertical) m 18 [21] 18 [21] 20 [23] 20 [23]
Ductcross-section mm 135 135 135 135
Exterior wall system
Pipelength(vertical) m 20 [23] 20 [23] 25 [28] 25 [28]
Withouttheuegasfan
Boiler type BK20 BK30
Fuel Heatingoil Gas Heatingoil Gas
Fluegaspipe 60/100
80/125
60/100
80/125 80/125 80/125
Duct system
Pipelength(vertical) m 11 [14] 11 [14] 15 [18] 11 [14]
Ductcross-section mm 135 135 135 135
Exterior wall system
Pipelength(vertical) m 15 [18] –
15 [18] 20 [23] 15 [18]
Assessmentbasis
ConnectingpipeBK20,BK30: 90cmeffectiveheight,2moveralllength,2pipebends87°
Exteriorwallsystem: Airsupplyoverconsole
Geodeticinstallationheight: from1000mgenerallyonlywithuegasfan
Witheveryfurtherinstalledpipebend,thelengthoftheuegaswillbereducedby1m.
Thistableisbasedonpracticalendurancetestsconductedbythecompanyandpartlyoncalculationsperformedby
CentrotecSystemtechnikGmbHcompany.
Flue gas pipe dimensions BK20 and BK30
roomsealedheatingRSH[non-roomsealedheatingNRSH]

13
Functionanddescription
4.4 Technical data
TheoperatingdataforthedeliveredFullyCon-
densingBoilermaybefoundonthelabelorin
theorderconrmation.
Thepresentoperatinginstructionsareattached
tothedeliveredFullyCondensingBoilerinclu-
dingtechnicaldata,dimensionsandinstructions
withregardtoinstallation,commissioningand
maintenance.
Thethirdpartyoperatingmanualsand/orcir-
cuitdiagramsoftheboilerequipment,control
systems,supplementarydocumentation,expert
assessmentsetc.shouldbetakenintoconsi-
deration.Ifneeded,thesedocumentsmaybe
requesteddirectlyfromthecompany.
Fig. 3: Installationtypes(NRSH) B23,B33
  (RSH) C13,C33,C43,C53,C63orC83pursuanttoDINEN15035
Supplyair
Fluegas
Boiler type BK20 BK30
Fuel Heatingoil Naturalgas Heatingoil Naturalgas
Nominalheatoutput kW 15,0–21,0 15,0–21,0 22,0–32,0 22,0–32,0
Firingcapacity kW 15,2–21,2 15,2–21,2 22,2–32,3 22,2–32,3
CO2content* Vol.-% 13,7 9,5 13,7 9,5
Fluegasmassow g/s 6,8–9,5 6,3–8,8 9,9–14,4 9,2–13,4
Fluegastemperature °C <48 <56 <48 <56
Air-uegas-systemØ mm 125/80conc. 125/80conc. 125/80conc. 125/80conc.
Heatingwaterresistance
(withΔT=20K) mbar 1,2 1,5
Availablepressureatthe
uegasconnectingpiece
withoutfan
Pa 60 60
Residualconveyingpres-
sureafterfan Pa 200 200
*CO2contentmeasuredinfurnace

BK20/BK30
14
Functionanddescription
Pos. Description BK20 BK30
Watercapacity l 58 70
Weight kg 214 255
1Safetygroupconnection DN 25(1") 25(1")
2Reservoirowpipe(alternatively:heatinputpipe) DN 25(1") 25(1")
3Reservoirreturnowpipe(alternatively:heatoutput
pipe) DN 25(1") 25(1")
4Condensatedrainage DN 25(1") 25(1")
5Fluegasconnectionair-uegas-system
(AFGS)
external-Ø mm 125 125
internal-Ø mm 80 80
6Heatinputpipe DN 25(1") 25(1")
7Heatoutputpipe DN 25(1") 25(1")
8Fillinganddischargingcock 1/2" 1/2"
Allconnections-externalthread
Pos. Description BK20 BK30
H1 Connectingdimensions,condensatedrainage mm 38 38
H2 Connectingdimensions,heatoutputpipe mm 510 510
H3 Connectingdimensions,heatinputpipe mm 849 849
H5 Boilerheight mm 1043 1043
H6 Overall height mm 1163 1148
Overall height without casing mm 1150 1120
Overallheightwithoutcasing,withoutbase mm 832 832
H7 Boilersupports(*height-adjustable) mm 20–40 20–40
B1 Connectingdimensions,outputpipe mm 120 120
B2 Connectingdimensions,inputpipe mm 227 245
B3 Connectingdimensions,safetygroup mm 272 290
B4 Connectingdimensions,AFGsystem mm 365 385
B5 Overall width mm 544 580
Overall width without casing mm 490 571
L1 Connectingdimensions,AFGsystem mm 104 104
L2 Connectingdimensions,inputpipe/outputpipe mm 224 224
L3 Connectingdimensions,safetygroup mm 310 310
L4 Overall length mm 1123 1269
Overall length without casing mm 845 1050
Overalllengthwithoutcasing,withoutbase mm 793 940
Fig. 4: Boilerdimensions

15
Delivery–transportationtoinstallationsite
5 Delivery – transportation to
installation site
5.1 Safety instructions
Duringloadingorunloading,anytransportation
toinstallationsiteandalsoduringtemporarysto-
rageorwarehousing,itisnecessarytocomply
withregulations,warningsandinstructionsrela-
tedtosafetyguidelinesoftherespectivecountry.
5.2 Unloading, use of hoist
TheBKFullyCondensingBoilerisbroughtto
shippingcompletelyorpartiallyassembled.
• Dangerofinjury!Manualunloadingortrans-
portationofweights>35kg(ILO,Geneva)
orone-timeliftingofmaximum>55kg(Acci-
dentpreventionregulations/FederalMinistry
ofLabourandSocialAffairesofGermany)
isforbidden.
• Foryourownsecurity,alwaysusesuitable
hoistingdevicesand/orindustrialtrucksas
wellasotherloadhandlingaccessorieswith
adequateloadcapacity.Beforeloadingor
unloadingtheFullyCondensingBoiler,take
caretoensuresufcientspaceforsecure
placingoftheboiler.
• Theloadhandlingaccessoriesmustbe
carefullyattachedandsecured.There
shouldbenodangerfromsuspendedloads!
• Fixingropesorstringstotheboilerequip-
mentisforbidden!
• AlwayslifttheFullyCondensingBoileronly
vertically–neverpullitsidewards!
Neverstayorworkunderthesuspendedload.
Mortaldanger!
Attention
TheBKFullyCondensingBoilershouldbe
handled,duringunloading,transportationto
installationsiteortemporarystorage,withthe
usualcareandprotectedagainstexternalrough
treatmentand/orfallingobjects.
5.3 Completeness of delivery
Checkthecompletenessofdeliveryimmediately
uponitsreceipt(compareitwiththeorderconr-
mation/deliverynoteofthecompany).
Missingpartsshouldbepromptlyclaimedtothe
deliveringtransportcompanyandthe
companynotied.

BK20/BK30
16
Installationandconnection
6.2 Electrical connection
Thereliablemainsconnectionistobeperformed
byanexperiencedelectrician.
1� Thecharacteristicsofelectricalmains
shouldmeettherespectivelocalandnati-
onallegalprovisions.
2� Aspowercables,chooseatleastonee-
xiblecablewithpolychloroprenecoating,
inaccordancewith60245IEC45(for
example,NYM3x1,5m2).
3� Theearthwireshouldbelongerthan
othercables.
Information
6 Installation and connection
6.1 Fully Condensing Boiler
TheinstallationoftheFullyCondensingBoiler
shouldbecarriedoutunderconsiderationofthe
actualinstallationguidelines.Inthiscase,itis
necessarytoinstallsafety-relatedequipmentin
conformitywithDIN12828,forexample,asafety
groupmaximum3bar.
Foroperationwithgasfanburners,thefollowing
classesofgasequipmentareutilized(pursuant
toDINEN437):
Thedistancesfromtheunittothewallsorcom-
bustiblematerials(min.200mm)shouldmeet
localrepoliceregulations.Thelateraldistances
ontheleftortherightsideoftheboilershouldbe
minimum500mm,toensurethattheboilerdoor
withtheburnercouldbeeasilyswungout.
Theuegaspipemustbeleadtothechimneyas
shortaspossibleandrising.Theuegaspipes
mustbecarefullysealedup!Itisrecommended
tousetheuegaspipeswithaninspectionope-
ning,toenablecleaningandvisualinspectionof
theuegaspipes.
TheFullyCondensingBoilerandthetankwater
heaterhavetostandhorizontallyorslightlyrising
tothebackinordertoensureacompletede-
aeriation(usetheadjustablefeettolevelthem).
Country Classes of
gas equip-
ment
Gas connec-
tion pressure
Germany I2ELL 20/25mbar
Austria I2H 20mbar
Belgium I2E+ 20/25mbar
Luxembourg I2E 20mbar
France I2E+ 20/25mbar
Switzerland I2H 20mbar

17
Installationandconnection
6.3 Burner installation
Step 1:
Pulloutabovebothwingapsandturnthem
down.
Step 2:
Leadburnerangebehindtheinsulationatthe
burnerdoorandfastenitwithfourscrews.Then
hooktheburnerangeupandxit.
Step 3:
Againhookupbothwingaps.

BK20/BK30
18
Installationandconnection
Fig. 6: Condensatetrap
siphon
siphon-like
hopper
25mm
Boiler
6.5 Handingoverandservicing
instructions
Itisessentialthattheinstallation,commissio-
ningandmaintenanceoftheFullyCondensing
Boilersarecarriedoutbyqualiedandtrained
personnel.Duringtheinstallationandtrialrun,it
isnecessarytocarefullychecktheconformityof
safetyinstallationswithDIN12828aswellasits
functioningandcorrectsettingandtoconrmitin
thecommissioningreport.
Theheatingtechnicianshouldfamiliarizethe
operatorwiththeheatingunitanditsservicing
andwithsafetyinstallationsandtheirfunctions!
Theoperatormustplacetheoperatinginstruc-
tionsforthe BKFullyCondensingBoilervisibly
inthesameroomwheretheboilerislocated�
Theoperatorisobligatedtoeliminatemal-
functionsintheheatingunitand/oritssafety-
relatedorelectricalequipmentonlybyqualied
experts.Moreover,hemustbeclearlyinformed
abouttheinadmissibilityandpotentialdanger
ofimproperhandlingoftheunit.
Information
Theheatingtechnicianand/ortheoperator
mustnotmakeduringinstallation,commissio-
ningoroperationanychangesintheBKFully
CondensingBoiler,itssafety-relatedequip-
mentorfactorysettings.
Attention
6.4 Condensate drainage
Thecondensateaccumulatedinthesecondary
heatexchangerisprocessedintheneutraliza-
tionboxoftheBKFullyCondensingBoiler.
Whendischargingthecondensateintosewage
orwastewatersewer,itisnecessarytotakeinto
accountthewaterwayprescriptionsoftheres-
pectivecountryandthestatutesoflocalwaste
disposalcompanies!Theunitoperatormust
obtaintheauthorization,bearinginmindthe
AdvisoryleaetA-251„Condensationdisposal
inchimneys”withpresentationoftheexpert
assessment.Oninstallationofthesuppliedneu-
tralizationbox,itisessentialtoannuallyloosen
andrinsethegranulate.
Duringinstallationofthecondensatedrainage
system,caremustbetakentoensurethat
thecondensationwaterlevelof120mm(see
Fig.5)isnotexceeded.
Thecondensatedrainagesystemmaynotbe
alteredorclosed.
ThesuppliedcondensatetrapDN40shouldbe
placedasclosetotheboileraspossible.Prior
tocommissioning,llthesiphonwithwater.
Ifinspecicsituationstheneutralizationboxis
notutilized,thecondensatedrainagesystem
shouldbearrangedinsuchawaythatthe
sealingwaterheightisnotlessthan25mm
(see.Fig.6).
Attention
Fig. 5: Condensatedrainage–thehighestlevel
120mm

19
Installationandconnection
Option 1 Neutralizationboxalignedwiththepermanentlycondensing
boiler.
Option 2 Neutralizationboxatrightanglestothepermanently
condensingboiler.
Option 3 Neutralizationboxparallelbeneaththepermanently
condensingboiler(additionalHTtuberequired).