Noritz CK-23 User manual

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*Aqualifiedserviceagencyisanyindividual,firm,corporationorcompanywhicheitherinpersonor
througharepresentativeisengagedinandisresponsiblefortheconnection,utilization,repairor
servicingofgasutilizationequipmentoraccessories;whoisexperiencedinsuchwork,familiarwithall
precautionsrequired,andhascompliedwithalloftherequirementsoftheauthorityhavingjurisdiction.

*Conversionacceptableforinstalllocations0‐2,000feet.Seeheaterinstallationmanualforprocedures
toadjustabove2,000feet.

NORITZAmericaCorporation
11160GraceAvenue
FountainValley,CA92708
866‐766‐7489
www.noritz.com
CK‐IM‐5
Rev.08/17
InstallationGuide
ConversionKits:CK‐23,CK‐24,CK‐25,CK‐26,CK‐27,CK‐28,CK‐29,CK‐30
WARNING


Thisconversionkitshallbeinstalledbya
qualifiedserviceagencyinaccordancewith
themanufacturer’sinstructionsandall
applicablecodesandrequirementsofthe
authorityhavingjurisdiction.Theinformation
intheseinstructionsmustbefollowedto
minimizetheriskoffireorexplosionorto
preventpropertydamage,personalinjuryor
death.Thequalifiedserviceagencyis
responsiblefortheproperinstallationofthis
kit.Theinstallationisnotproperand
completeuntiltheoperationoftheconverted
applianceischeckedasspecifiedinthe
manufacturer’sinstructionssuppliedwiththe
kit.
WARNING 

Cettetroussedeconversionnedoitêtre
installéequeparlereprésentantd'un
organismequalifiéetconformémentaux
instructionsdufabricantetàtouslescodeset
exigencespertinentsdel'autorité
compétente.Lesinstructionsdecette
noticedoiventêtresuiviesafinderéduireau
minimumlerisqued'incendieoud'explosion,
dedommagematériel,deblessureoude
mort.L'organismequalifié
estresponsabledel'installationadequatede
cettetrousse.L'installationn'estpasadéquate
nicomplètetantquelebonfonctionnement
del'appareilconvertin'apasétévérifiéselon
lesinstructionsdufabricantfourniesavecla
trousse.
InCanada:

Theconversionshallbecarriedoutinaccordancewiththerequirementsoftheprovincialauthorities
havingjurisdictionandinaccordancewiththerequirementsoftheCAN‐B149.1andCAN1‐B149.2
InstallationCode.
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LACONVERSIONDOITÊTREEFFECTUÉECONFORMÉMENTAUXEXIGENCESDEL'AUTORITÉ
PROVINCIALEAYANTJURIDICTIONETAUX,CSA‐B149.1,ETCAN‐B149.2.

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1.BeforeConversion
Beforeattemptingtoconvertaunit,verifythattheproperkithasbeenpurchasedforthemodel
type*:

ConversionKitModelConversionType
CK‐23N‐0931M/NR111‐SV,
N‐0931M‐ASME/NC250‐SV‐ASME PropanetoNaturalGas
CK‐24N‐0931M/NR111‐SV,
N‐0931M‐ASME/NC250‐SV‐ASME NaturalGastoPropane
CK‐25N‐0931M‐OD/NR111‐ODPropanetoNaturalGas
CK‐26N‐0931M‐OD/NR111‐ODNaturalGastoPropane
CK‐27
N‐0931M‐DV/NR111‐DV,
N‐0931M‐DV‐ASME/
NC250‐DV‐ASME
PropanetoNaturalGas
CK‐28
N‐0931M‐DV/NR111‐DV,
N‐0931M‐DV‐ASME/
NC250‐DV‐ASME
NaturalGastoPropane
CK‐29
NR83‐DVC
NR83DVC(GQ‐2457WS‐FFAUS)
NR83OD(GQ‐2457WSUS)
PropanetoNaturalGas
CK‐30
NR83‐DVC
NR83DVC(GQ‐2457WS‐FFAUS)
NR83OD(GQ‐2457WSUS)
NaturalGastoPropane

*Themodeltypecanbeverifiedfromtheratingplatelocatedonthefrontcoverortheright
sideofcaseoftheunit.

ToolsRequired:
NoritzRemoteController
Manometer(Capableofdisplayingdigitsintenths(e.g.2.4)andupto20”W.C.)
Philipsscrewdriver(#2Recommended)
Gasleakagedetector

NOTE:DonotattempttoperformaconversionwithoutaccesstoamanometerandaNoritz
RemoteController.Adigitalmanometerisrecommended.
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2.IncludedParts
Thefollowingpartsaresuppliedinthe
conversionkit.Checkforanymissing
itemsbeforestartingtheconversion.
3.ConversionProcedure
N‐0931M‐DV/
NR111‐DVandN‐0931M‐
DV‐ASME/NC250‐DV‐ASME
NG
/
LP onl
y
N‐0931M‐DV/
NR111‐DVandN‐0931M‐
DV‐ASME/NC250‐DV‐ASME
NG/LP only
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PartsShapeQuantity

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ManifoldPlate

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
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1
O‐Ring
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
2

BurnerDamper


1
NewInletandManifoldPressure
RatingSticker(English)

1
NewInletandManifoldPressure
RatingSticker(French)

1
Date,GasType,KitNumber,Name
ofCompanySticker(English)



1
Date,GasType,KitNumber,Name
ofCompanySticker(French)


1
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PartsReplacement:

1) IfthedisplayontheRemoteControllerison,turnofftheunitbypressingthe“ON/OFF”
buttonontheRemoteController.ThereshouldbenodisplayontheRemoteController.
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2) Turnoffelectricalpowertounitbydisconnectingtheelectricalplugfromtheoutletor
shutoffthebreakerprovidingpowertounit.
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3) Turnoffthegasandwatersupplytotheunitbyclosingthegasshut‐offvalve.
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4) RemovetheFrontCoveroftheunitbyremovingthe4screwsholdingittothecase.
NR83‐DVC/
NR83DVC(GQ‐2457WS‐FFAUS)/
NR83OD(GQ‐2457WSUS)
NR83‐DVC/
NR83DVC(GQ‐2457WS‐FFAUS)/
NR83OD(GQ‐2457WSUS)

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RemoteController
NR83‐DVC/
NR83DVC(GQ‐2457WS‐FFAUS)
5) FORNR83‐DVCANDNR83DVC(GQ‐2457WS‐
FFAUS)ONLY:DetachtheRemoteController
withmetalplatebyremovingthescrew.(See
imageontheright)

6) FORNR83‐DVC,NR83DVC(GQ‐2457WS‐FFAUS)
ANDNR83OD(GQ‐2457WSUS)ONLY:
Locatethefivecoloredwireconnectors
(Gray,Black,Orange,Blue,andRed)fromthe
electricalsolenoidsontheManifoldPlate.
DisconnecttheconnectorofManifoldPlate.

FORN‐0931M,NR111,ANDNC250SERIESONLY:
Locatethesixcoloredwireconnectors(Brown,Gray,
Black,Orange,Blue,andRed)fromtheelectricalsolenoids
ontheManifoldPlate.Disconnecttheconnectorof
ManifoldPlate.
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7) RemovetheC‐ClampatthebottomoftheGasPipe(Figure2).

8) Thenremovethe4screwswithaPhilipsscrewdriver.DONOTuseapowerdrill.Once
screwsareremoved,pulltheGasPipefromthegasfitting.WhentheGasPipeand
ManifoldPlatehasbeendetached,removetheGasPipefromtheManifoldinlet.Keep
theScrews‐ManifoldPlate.ThesescrewsareusedonthenewManifoldPlate.
DiscardtheoriginalManifoldPlate.
Disconnectthisconnector
931/NR111/NC250Series NR83 Series

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GasPipe FIGURE2
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9) FORNR83‐DVCANDNR83DVC(GQ‐2457WS‐FFAUS)ONLY:Removescrew,feedback
pipe,andO‐ringfromthegasvalveasshownbelow.Thesepartsareusedonthenew
ManifoldPlate.
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10) FORN‐0931M‐DV/NR111‐DVNG/LP,N‐0931M‐DV‐ASME/NC250‐DV‐ASMENG/LP,
NR83‐DVC,NR83DVC(GQ‐2457WS‐FFAUS)ANDNR83OD(GQ‐2457WSUS)ONLY:
AfterManifoldPlateisremoved,BurnerDamperwillbecomeoutasindicatedinFigure
4.Removescrews(1),(2),(3),<(4):NR83Seriesonly>andthendetachBurnerDamper
fromtheburnerassembly.CheckforpropersizeofBurnerDamperwiththetablebelow
andreplacewithnewBurnerDamperincludedinConversionKit.
GRAYBLACK ORANGE
BLUERED
BROWN
WHITE
(
BACK
)
FIGURE1
O‐Ring
GasPipe
C‐Clamp
Remove
Manifold
Screw
FIGURE 3
O‐Ring

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e.g.
ManifoldPlate
for931/NR111/NC250Series
FIGURE6
FIGURE5
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


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11) ReplacetheO‐ringsontheGasPipetoNew
O‐ringsincludedinConversionKit.Discard
theoldO‐rings.

12) InsertthenewManifoldPlatesuppliedwiththeconversionkit.Theorificesizeofthe
ManifoldPlateshouldbemarkedasinFigure6.Checkfortheproperorificesizewith
yourmodelheaterfromthetablebelow.DONOTcontinuewithconversionif
ManifoldPlateisincorrect.
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
 

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ModelNameGas
ConversionDamperSize
NGtoLP10‐12H
N‐0931M‐DV/NR111‐
DV,
N‐0931M‐DV‐ASME
/NC250‐DV‐ASME LPtoNG7‐14O
NGtoLP17‐11
NR83‐DVC/
NR83DVC(GQ‐2457WS‐
FFAUS)/
NR83OD(GQ‐2457WSUS)LPtoNG17‐12
ModelNameGas
Conversion
Orifice
Size
NGtoLP2.2mmN‐0931M/NR111‐SV,N‐
0931M‐ASME/NC250‐
SV‐ASMELPtoNG2.9mm
NGtoLP2.0mmN‐0931M‐OD/
NR111‐ODLPtoNG2.9mm
NGtoLP2.2mm
N‐0931M‐DV/
NR111‐DV,
N‐0931M‐DV‐ASME/
NC250‐DV‐ASMELPtoNG3.0mm
NGtoLP1.4mm
NR83‐DVC/
NR83DVC
(GQ‐2457WS‐FFAUS)/
NR83OD(GQ‐2457WSUS)LPtoNG2.2mm
BurnerDamperforNR83Series
(EX:10‐12H=N‐0931M‐DV‐LP)
FIGURE4
1234
O‐ringon
GasPipe
BurnerDamper
for931/NR111/NC250Series
ManifoldPlate
forNR83 Series

7
13) MakesurethatO‐ringsaresecuredproperlyinplace.Failuretodosowillcausegas
leaks,possiblyresultinginseverepersonalinjuryordeath.

14) OnceO‐ringsareattached,slidetheGasPipeintotheManifoldinlet.Makesurethat
theGasPipeiscompletelyinsertedintotheManifoldinletinordertopreventanygas
fromleaking.

15) InsertGasPipeintothegassupplyinletandholdtheManifoldPlateinplace.

16) SecurethenewManifoldPlatetotheunitusingthescrewsremovedinStep8.The
screwsneedonlytobehandtightenedandshouldnotbetightenedbyusingapower
drill.First,insertscrews1‐4fromFigure1,butdonotfullytightenthesescrews.Once
allscrewsareinserted,proceedtocompletelytightenscrews1‐4.

Note:Whentighteningthescrews,becertaintonotapplyexcessforceasthescrewsshould
turneasily.Ifextraforceisrequired,stop,removethescrewandtightenbyhandfirst.Excess
forcecanstripouttheoriginalholes.

17) AttachC‐ClampatthebottomoftheGasPipe(Figure2).Failuretodosowillcausegas
leaks,possiblyresultinginseverepersonalinjuryordeath.

18) Connecttheconnector‐ManifoldPlate(Figure1).

19) FORNR83‐DVCANDNR83DVC(GQ‐2457WS‐FFAUS)ONLY:AttachtheO‐ring,feedback
pipe,andscrewontheGasValveasshowninFigure3.ThenattachtheRemote
Controllerwithscrew.

20) BeforereplacingtheFrontCover,theunitmustbeadjustedandtestedasdescribedin
thenextsection.

Adjustments:

1) Beforeelectricalpowerisappliedtotheunit,installaRemoteControllertotheunitifit
isnotalreadyinstalled.

2) Reconnecttheelectricalpowertotheunit.

3) Withinthefirsttenminutesofconnectingelectricalpowertotheunit,butbefore
pressingthePowerON/OFFbutton(displayshouldbeblank),holdtheupbuttononthe
RemoteControlleruntilthedisplayblinks“99”.ThiswillputtheunitintoMaintenance
Writermode.Ifthedisplaydon’tblink“99”,unplugtheunitforsixtyseconds,andtry
again.

4) AfteraccessingtheMaintenanceWritermode,usethe“up”and“down”buttonsto
changetheMaintenanceWriteritemnumberdisplay.Pressingthe“FLOWMETER
ALARMSET”buttonfor0.5secondswillchangetheitemnumbersettingfrom“ON”to
“OFF”.IfthePrioritylampisflashingwhenanitemnumberisdisplayed,thisindicatesan

8
“ON”settingforthatitemnumber,andifthePrioritylampisoff,theitemnumberis
“OFF”.

5) Change“FC”and“FE”fromOFFtoON.Theprioritylightshouldbeflashingonbothitem
numbersafterpressingthe“FLOWMETERALARMSET”.

6) Choosetheproperconversionsettingfromthechartandsetthe“A1”Maintenance
Writeritemnumberaccordingtothechart.

Note:DONOTchangeanyotheritem.Thiswillcauseafaultontheunit.

DesiredGasTypeA1
NaturalGasON
PropaneOFF

ON:“Priority”lightisflashing.
OFF:“Priority”lightisoff.

7) Aftersettingthe“A1”itemnumberforthedesiredgastype,pressandholdthe“up”
and“down”buttonstogetherforfivesecondstoconfirmthenewsettings.TheRemote
Controllerwillsoundandthedisplaywillgoblankwhenthesettingsareconfirmed.If
thisisnotdone,theunitwillnotputthesettingchangesintoeffect.

Note:ThesettingchangescanbecancelledbypressingthePowerON/OFFbutton
beforeconfirmingthesettings,oriftheunitisleftalonefortenminuteswithout
confirmingthesettings.Ifthedefaultsettingneedstobechangedagain,disconnectthe
electricalpowertotheunit,reconnectitandrepeatthisprocedure.


Testing:

1) Beforeturningonthegassupplytotheunit,verifythattheinletgassupplypressureis
withinthefollowingoperatingranges:

FORN‐0931M,NR111,ANDNC250SERIESONLY:
a. NaturalGasSupply:Min.5.0–Max.10.5inchesW.C.
b. PropaneSupply:Min.10.5–Max.14.0inchesW.C.

FORNR83‐DVC,NR83DVC(GQ‐2457WS‐FFAUS),ANDNR83OD(GQ‐2457WSUS)ONLY:
a. NaturalGasSupply:Min.4.0–Max.10.5inchesW.C.
b. PropaneSupply:Min.8.0–Max.14.0inchesW.C.

Note:Ifthesupplypressureishigherthanthemaximumallowablepressure,adjustthepressure
attheregulatororinstallasecondaryregulatoronthesupplylineconnectedtothewater
heater.DONOTattempttooperateheaterifgassupplypressureisnotwithinranges
specifiedabove.Highsupplypressurecandamagetheunitandpossiblycauseagasleak.

9
FIGURE7
FIGURE8
2) Next,verifythesupplypressureattheunit.Tocheck
thegassupplypressuretotheunit,atapisprovidedon
thegasinlet(Figure7).Makesuregassupplyisturned
offtotheunit.RemovethehexheadPhilipsscrewfrom
thetap.A9/32”nutdriverisrecommendedforthe
removalofthisscrew.Ifanutdriverisnotavailable,
aPhilipsscrewdrivercanbeused.Gentlyremovethe
screw,soasnottostripoutthescrew.

3) Connectamanometertothetapbyusingasilicone
tube.Turnongassupplytotheunitandconfirmthe
supplypressure.

4) Aftercheckingthegaspressuretotheunithasbeenconfirmed,turnoffthegassupply,
removethemanometertubeandreplacethehexheadscrew.

5) ChecktheManifoldpressurebyusingamanometer
(digitalmanometerisrecommended).Inorderto
checkthegasManifoldpressure,atapisprovided
ontheManifoldPlateinsideoftheunit(Figure8).
Thepressurecanbecheckedeitherbyremovingthe
hexheadPhilipsscrew(1)andconnectinga
manometerwithasilicontube,orbyremovingthe
1/8”NPTscrew(2)withanAllenwrenchand
connectingtheappropriatepressuregauge.Besure
tozerooutthemanometerbeforeattachingitto
thetap.



6) Turnonthegassupplytotheunit.

7) Beforeoperatingtheunit,checkforgas
leaksatthegasinletfittingandaroundthe
ManifoldPlateusingagasleakagedetector.


8) Ifnotalreadyon,pressthePower“ON/OFF”buttonsothattheunitisinstandbymode.
Theprioritylightshouldbeon.

9) Turnonseveralhotwaterfixtures(highflowrateisrequiredthroughtheunit)andallow
theunittogothroughitsstartupsequence.Itmaytakeseveralignitionattemptsin
ordertopurgeairfromthegaschambers.Ifan“11”codeappearsontheRemote
Controller,resettheunitbypressingthePowerbuttonontheRemoteControlleroff
andthenonagain.




931/NR111/NC250Series
NR83Series

10
10) Oncetheheaterhasignitedandhasbeguntorun
continuously,locatetheManifoldadjustmentbuttons
onthecircuitboardlocatedintherightsideoftheunit
(Figure9).

11) Pressandholdthemaximumpressuresetbutton.
Verifyfromthebelowtablethattheappropriate
pressureisreadfromthemanometer.Ifthepressure
needsadjustment,usetheManifoldpressureincrease
anddecreasebuttonstoadjusttothecorrectpressure,
whilecontinuingtoholddownthemaximumpressure
setbutton.

12) Pressandholdtheminimumpressuresetbutton.
Verifyfromthetablesbelowthattheappropriate
pressureisreadfromthemanometer.Ifthepressure
needsadjustment,usetheManifoldpressureincrease
anddecreasebuttonstoadjusttothecorrectpressure,
whilecontinuingtoholddowntheminimumpressure
setbutton.

ManifoldGasPressureMaximumandMinimumValues









SettingListforManifoldPressuresNR83DVC(GQ‐2457WS‐FFAUS)

SettinglistforGasManifoldpressure(NR83‐DVC)
ManifoldPressureforNR83‐DVC(inchH2O)Coveroff
Dip7=OFFDip8=OFFDip7=ONDip8=OFFDip7=OFFDip8=ONDip7=ONDip8=ON
Ventlengthadjustment
MinimumLengthShortLengthLongLengthMaximumLength
NoVenting
Gastype/VentlengthMax.valueMin.valueMax.valueMin.valueMax.valueMin.valueMax.valueMin.valueMax.valueMin.value
NG/Minlength2.571.002.531.002.490.962.490.96
(Verticaltermination)*(2.53)(0.97)(2.46)(0.95)(2.46)(0.95)(2.40)(0.93)
NG/Maxlength2.531.002.490.962.490.962.490.96
(Verticaltermination)*(2.46)(0.95)(2.46)(0.95)(2.40)(0.93)(2.36)(0.92)
2.651.04
LP/Minlength3.731.363.651.363.611.323.571.32
(Verticaltermination)*(3.61)(1.30)(3.53)(1.30)(3.53)(1.30)(3.49)(1.28)
LP/Maxlength3.651.363.611.323.571.323.571.32
(Verticaltermination)*(3.53)(1.30)(3.53)(1.30)(3.49)(1.28)(3.45)(1.28)
3.81

1.41

*Usethesesettingswhentheunitterminatesusingtheverticalraincap
ManifoldPressure(inchH2O)CoverOff
ModelNameGasTypeSupplyPressure
(inchH2O)MaxValueMinValue
NG 7.93.460.87N‐0931M/NR111‐SV,
N‐0931M‐ASME/NC250‐SV‐ASMELP11.03.650.94
NG7.93.150.75
N‐0931M‐OD/NR111‐ODLP11.04.370.98
NG 7.93.450.94N‐0931M‐DV/NR111‐DV,
N‐0931M‐DV‐ASME/NC250‐DV‐ASMELP11.04.020.91
NG7.92.851.00
NR83OD(GQ‐2457WSUS)LP11.04.251.40
NG7.9NR83‐DVC/NR83DVC(GQ‐2457WS‐
FFAUS)LP11.0
Refertothe“SettinglistforgasManifoldpressure
(GQ‐2457WS‐FFAUSandNR83‐DVC)”below
ManifoldPressure(inchH2O)Coveroff
Dip7=OFFDip8=OFFDip7=ONDip8=OFFDip7=OFFDip8=ONDip7=ONDip8=ONVentlength
adjustmentMinimumShortLongMaximum
GastypeMax.valueMinvalueMax.valueMinvalueMax.valueMinvalueMax.valueMinvalue
NG2.750.902.700.852.700.852.650.80
LP3.851.253.801.253.751.203.701.20
FIGURE9

11




13) AftertheManifoldpressureshavebeen
confirmed,verifythattheflameisasteadyblue
colorusingtheinspectionwindow(Figure10).

14) Turnoffwaterandgastounit.Attachscrew
toManifoldtapandturnongassupplytothe
unit.

15) Performafinalgasleakcheckaroundthe
entireManifoldPlate,especiallyneartheGas
PipeandManifoldinlet,usingagasleak
detectiondevice.

16) IftheRemoteControllerneedstoberemoved,
disconnectelectricalpowertoheaterand
proceedtoremovecontrollerconnections.


FIGURE10
















12
Applyconversionlabels:

1) ClosetheFrontCoveroftheunitwith4screwspreviouslyremoved.

2) Locatethe2conversionstickersinEnglishsuppliedintheconversionkit.*Forunits
certifiedforuseinCanadalocatethe2conversionstickersinFrench.

3) PlacethestickerindicatingthenewinletandManifoldpressuresdirectlyabovethe
ratingstickersoasnottocoveranyexistingmarkingsasindicatedby“A”inFigure11.
*ForunitscertifiedforuseinCanadaplaceFrenchstickerwithnewpressuresnextto
Englishsticker.

4) Fillouttherequiredinformationontheremainingstickerindicatingthedate,gastype,
kitnumber,andnameofthecompanyperformingtheconversion.Placethisstickeron
thefrontcoverasindicatedby“B”inFigure11.Donottocoveranyexistingmarkings.
*ForunitscertifiedforuseinCanadaplaceFrenchstickerwithagencyinformation
nexttoEnglishsticker.

 
(N‐0931M/NR111‐SV&ASMEModel)(N‐0931M‐DV/NR111‐DV&ASMEModel)(N‐0931M‐OD/NR111‐OD)






FIGURE11
NR83‐DVC
NR83DVC(GQ‐2457WS‐FFAUS)
NR83OD(G
Q
‐2457WSUS)

13
InstallationChecklist:

PartsReplacement:

□RemoveexistingManifoldPlate,BurnerDamperandO‐rings.Discardtheseparts.
□ReplacewithnewManifoldPlate,BurnerDamperandO‐rings.
□MakesurethatManifoldPlateandO‐ringsaresecuredproperlyinplace.

Adjustments:

□AccessMaintenanceWritermodeandsettheA1itemnumbertodesiredgastype.
□Confirmgastypesettings.

Testing:

□Beforeopeninggasvalvetotheunit,verifythegassupplypressureiswithinoperating
rangeoftheuint.
□Ifgassupplypressureisnotwithinspecification,adjustthepressureattheregulatoror
installasecondaryregulatoronthesupplylineconnectedtotheunit.
□RemovehexPhilipsscrewfrominletoftheunitandconfirmgassupplypressurewith
manometer.Replacescrewafterconfirmationofgassupplypressure.
□RemovehexPhilipsscrewor1/8”NPTscrewfromgasvalveandconnectmanometerto
GasValve.
□CheckforgasleaksaroundgasinletfittingandManifoldPlateusingagasleakage
detector.
□CheckandconfirmcorrectManifoldpressures.Makeadjustmentifnecessary.Replace
screwafterManifoldpressureshavebeenconfirmed.
□Performfinalgasleakcheckagainwithgasleakagedetector.

ApplyConversionLabels:

□PlaceNewInletandManifoldPressureRatingStickeraboveratingstickeronfrontcover.
□FilloutinformationonDate,GasType,KitNumber,NameofCompanyStickerandplace
onfrontcover.
□IncludeFrenchstickersforunitscertifiedforuseinCanada.


