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‐Donotstoreorusegasolineorother

flammablevaporsandliquidsinthevicinityof

thisoranyotherappliance.

‐WHATTODOIFYOUSMELLGAS

 Donottrytolightanyappliance.

 Donottouchanyelectricswitch,donot

useanyphoneinyourbuilding.

 Immediatelycallyourgassupplierfroma

neighbor'sphone.Followthegas

supplier'sinstructions.

 Ifyoucannotreachyourgassupplier,call

thefiredepartment.

‐Installationandservicemustbeperformed

byaqualifiedinstaller,serviceagencyorthe

gassupplier.

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Hydro‐Smart115

“MicroBoiler”forRadiantHeating

InstallationManualandOwner’sGuide

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H

y

dro‐Smart115

Ifyouhaveanyquestions,please

callorwriteto:

Hydro‐SmartInc.

10725165thAveNW,

Elk River, MN 55330

WARNING

Iftheinformationinthese

instructionsisnotfollowed

exactly,afireorexplosion

mayresultcausing

propertydamage,personalinjuryordeath.

PleasemakesurethepropergaspressureguidelinesandrecommendationfromHydro‐

Smartfailuretodosocancauseafireorexplosionandmayresult,causingproperty

damage,personalinjury,ordeath.

ANSI Z21.10.3 andCSA4.3

Contents

2│Page

CONTENTS

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SPECIFICATIONS…………………………………………………………………………………………..………………………...

INTRODUCTION…………………………………………………………………………………………………..………………….

SAFETYGUIDELINES…………….………………………………………………………………………………………..………..

INSTALLATION………………………………………………………………………………………………..…………………..….

General………………………………………………………………………………………………………………………..…..…

Clearances…………………………………………………………………………………………………………………………..

IncludedAccessories…………….………………………………………………………………………………………..…..

OptionalItems…………………………………………………………………………………………………………………….

WarningforInstallations…………………………………………………………………………………………………….

High‐AltitudeInstallations…………………………………………………………………………………………………..

VentingInstructions…………………………………………………………………………………………………………...

GasSupplyandGasPipeSizing………........................................................................................

WaterConnections……………..………………………………………………………………………………………………

ElectricalConnections……………………………………………………………………..…………………………….......

RemoteControllerConnections……..……………………………………………………………………….………..…

APPLICATIONS...………………………………………………………………………………………………………………..……

INITIALOPERATION..………………………………………………………………………………………………………….……

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OPERATINGSAFETY…………………………………………………………………………………………………………………

NORMALOPERATION…………………………………………………………………………………………………………..…

General………..……….………….…………………………………………………………………………………………………

Operation……………………………………………………………………………………………………………………….....

TemperatureSettings.…….……..……………………………………………………………………………………………

Flow…………………………………………………………………………………………………………………………………….

FreezeProtectionSystem…….…………………………………………………………………………………………..…

MaintenanceandService………………………………………………………………………………………………….…

UnitDraining…………………………………………….…………………………………………………………………………

TROUBLESHOOTING……..……………………………………………………………………………………………………..…

General………..……….………….…………………………………………………………………………………………………

ErrorCodes.…………………….…..………………………………………………………………………………………………

COMPONENTSDIAGRAM……………………………………………………………………………………………………..…

PARTSLIST………………….………………………………………………………………………………………………..…………

OUTPUTTEMPERATURECHART…………………………………………………………………………………………...…

LIMITEDWARRANTY…………………………………………………………....…………………………………………….….

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InstallationManual

Owner’sGuide

Specifications

3│Page

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SPECIFICATIONS

ModelHydro‐Smart115

NaturalGasInput

(OperatingRange)

Min:19,500Btu/h

Max:140,000Btu/h

PropaneInput

(OperatingRange)

Min:19,500Btu/h

Max:140,000Btu/h

GasConnection¾”NPT

WaterConnections¾”NPT

WaterPressure15‐150psi*

NaturalGas

InletPressure

Min.5.0”WC

Max.10.5”WC

Propane

InletPressure

Min.8.0”WC

Max.14.0”WC

Manifold

Pressure**

Natural2.0”WC

Propane2.5”WC

Weight33lbs.

DimensionsH20.5”xW13.8”xD6.7”

IgnitionElectricIgnition

Electric

Supply120VAC/60Hz

Consumption

Operation73.1W/0.61A

Standby6.2W/0.05A

Freeze‐

Protection111W/0.93A

*40psioraboveisrecommendedformaximumflow.

**TheManifoldPressureisthefactorysettingandgenerallyshouldnotneedadjustment.

NOTE:

 Checktheratingplatetoensurethisproductmatchesyourspecifications.

 InaccordancewithANSIZ21.10.3,COemissiondoesnotexceed400PPMfor

normalinput.

 Hydro‐Smartreservestherighttodiscontinue,orchangeatanytime,

specificationsordesignswithoutnoticeandwithoutincurringobligations.

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Introduction

4│Page

INTRODUCTION

 Thismanualprovidesinformationnecessaryfortheinstallation,operation,and

maintenanceofthewaterheater.

 Themodeldescriptionislistedontheratingplatewhichisattachedtothefrontpanel

ofthewaterheater.

 Pleasereadallinstallationinstructionscompletelybeforeinstallingthisproduct.

 Ifyouhaveanyproblemsorquestionsregardingthisequipment,consultwithHydro‐

Smart.

 Hydro‐Smart115isawaterheaterdesignedtobeusedwithradiantheatingina

combinationHydroPanel.

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1. Ahotwatertapisturnedon.

2. Waterenterstheheater.

3. Thewaterflowsensordetectsthewaterflow.

4. Thecomputerinitiatesthefanmotorandsendsasignaltotheignitertocreateanignition

spark.

5. Thegasignitesandflamesappearwithintheburnerchamber.

6. Watercirculatesthroughtheheatexchangerandthengetshot.

7. Usingthermistorstomeasuretemperaturesthroughoutthewaterheater,thecomputer

modulatesthegasandwatervalvestoensureproperoutputwatertemperature.

8. Whentheta

p

isturnedoff

,

theunitshutsdown.

 Theprinciplebehindtanklesswaterheatersissimple:

 Pleasereadallinstallationinstructionscompletelybeforeinstallingthisproduct.

 ThisproductisonlytobeusedwithHydro‐SmartHeatingPanels,“Integrator”.

*Thisdiagram

illustratestankless

waterheaterdesign

conceptsonlyand

doesnotaccurately

representtothewater

heater’sphysical

description.

Watersupply

Heatingpanel“Integrator” Strainer

Gasvalve

Thermistor

Burner

Hydro‐Smart115

GAS

Airvent

Expansiontank

Flowsensor

Watercontrolvalve

Pumpcontroller

Primarypump

Secondarypump

Radiantheating

Checkvalve

SafetyGuidelines

5│Page

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 Watertemperaturesover125°F (52

°

C) cancausesevereburnsinstantlyordeath

fromscalding.Thewatertemperatureissetat122°F(50°C)fromthefactoryto

minimizeanyscaldingrisk.Beforebathingorshoweringalwayscheckthewater

temperature.

 Donotstoreorusegasolineorotherflammables,vapors,orliquidsinthevicinity

ofthisappliance.

 Donotreversethewaterand/orgasconnectionsasthiswilldamagethegas

valvesandcancausesevereinjuryordeath.Followthediagramonp.20when

installingyourwaterheater.

 Donotusethisapplianceifanyparthasbeenincontactwithorbeenimmersed

inwater.Immediatelycallalicensedplumber,alicensedgasfitter,ora

professionalservicetechniciantoinspectand/orservicetheunitifnecessary.

 Donotdisconnecttheelectricalsupplyiftheambienttemperaturewilldrop

belowfreezing.TheFreezePreventionSystemonlyworksiftheunithaselectrical

power.Thewarrantywillnotbecoverediftheheatexchangerisdamageddueto

freezing.RefertothesectionontheFreezePreventionSystemonp.30formore

information.

SAFETYGUIDELINES



SAFETYDEFINITIONS

Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,willresultin

deathorseriousinjury.

Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,couldresult

indeathorseriousinjury.

Indicatesanimminentlyhazardoussituationwhich,ifnotavoided,couldresult

inminorormoderateinjury.

GENERAL

1. Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecenteditionofthe

NationalFuelGasCode:ANSIZ223.1/NFPA54intheUSAorCAN/CSAB149.1NaturalGas,Propane

InstallationCodeinCanada.

2. Properlygroundtheunitinaccordancewithalllocalcodesorintheabsenceoflocalcodes,with

theNationalElectricalCodes:ANSI/NFPA70intheUSAorCSAstandardC22.1CanadaElectrical

CodePart1inCanada.

3. Carefullyplanwhereyouintendtoinstallthewaterheater.Pleaseensure:

 Yourwaterheaterwillhaveenoughcombustibleairandproperventilation.

 Locateyourheaterwherewaterleakagewillnotdamagesurroundingareas(pleaserefer

top.7).

4. ChecktheratingplateforthecorrectGASTYPE,GASPRESSURE,WATERPRESSUREandELECTRIC

RATING.

*Ifthisunitdoesnotmatchyourrequirements,donotinstallandconsultwithHydro‐Smart.

5. Ifanyproblemshouldoccur,turnoffallhotwatertapsandturnoffthegas.Thencallatrained

technicianortheGasCompanyorHydro‐Smart.

WARNING

CAUTION

DANGER

WARNING

Installation

6│Page

INSTALLATION

GENERAL



1. Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecenteditionofthe

NationalFuelGasCode:ANSIZ223.1/NFPA54intheUSAorCAN/CSAB149.1NaturalGas,

PropaneInstallationCodeinCanada.



2. Allgaswaterheatersrequirecarefulandcorrectinstallationtoensuresafeandefficient

operation.Thismanualmustbefollowedexactly.Readthe“SafetyGuidelines”section.



3. Themanifoldgaspressureispresetatthefactory.Itiscomputercontrolledandshouldnot

needadjustment.



4. Maintainproperspaceforservicing.Installtheunitsothatitcanbeconnectedorremoved

easily.RefertotheClearancesSectiononp.8forproperclearances.



5. Thewaterheatermustbeinstalledinalocationwheretheproperamountofcombustibleair

willbeavailabletoitatalltimeswithoutobstructions.



6. Theelectricalconnectionrequiresameansofdisconnection,toterminatepowertothewater

heaterforservicingandsafetypurposes.



7. Donotinstalltheunitwheretheexhaustventispointingintoanyopeninginabuildingorwhere

thenoisemaydisturbyourneighbors.Makesuretheventterminationmeetstherequired

distancebylocalcodefromanydoorwayoropeningtopreventexhaustfromenteringabuilding

(refertop.15).



8. Particlesfromflour,aerosols,andothercontaminantsmayclogtheairventorreducethe

functionsoftherotatingfanandcauseimproperburningofthegas.Regularlyensurethatthe

areaaroundtheunitisdust‐ordebris‐free;regularmaintenanceisrecommendedforthese

typesofenvironment.



9. Ifyouwillbeinstallingthewaterheaterinacontaminatedareawithahighlevelofdust,sand,

flour,aerosolsorothercontaminants/chemicals,theycanbecomeairborneandenterandbuild

upwithinthefanandburnercausingdamagetothewaterheater.



10. FortheHydro‐Smart115:

 Theseunitsmaybeconvertedtoadirect‐vent(sealedcombustion)appliancebyinstallinga

direct‐ventconversionkitPartNo.9007667005(TK‐TV10)whichwillbringinallrequired

combustibleairfromoutsidethebuilding.Wheninstallingthedirect‐ventconversionkit,

pleasefollowallinstructionsincludedwiththekit.

 Ifthewaterheaterisusedasadirect‐ventappliance,theunitrequiresa3”combustibleair

supplypipe.Theintakepipemustbesealedairtight.AirsupplypipecanbemadeofABS,

PVC,galvanizedsteel,corrugatedaluminum,corrugatedstainlesssteelorCategoryIII

stainlesssteel.

 Terminatingtheventingthroughasidewallisrecommendedforthedirect‐ventsystem.

 Runningtheexhaustventandtheintakepipeparallelisrecommended.

 Terminatingtheexhaustandintakeonthesamewall/surfaceisrecommended.

Terminatinginthesamepressurezoneallowsforpressurebalancing,whichprevents

nuisanceshutdowns.



Installation

7│Page

 Installationandservicemustbeperformedbyaqualifiedinstaller(for

example,alicensedplumberorgasfitter),otherwisethewarrantybyHydro‐

Smartwillbevoid.

 Theinstaller(licensedprofessional)isresponsibleforthecorrectinstallation

ofthewaterheaterandforcompliancewithallnational,state/provincial,

andlocalcodes.

 Hydro‐Smartdoesnotrecommendinstallingthewaterheaterinapitor

locationwheregasandwatercanaccumulate.

 Donothavetheventterminalpointingtowardanyoperatingwindow,door,or

openingintoabuilding.

 Donotinstallnexttoanysourceofairbornedebris,suchasaclothesdryer,

thatcancausedebristobetrappedinsidethecombustionchamber,unless

thesystemisdirect‐vented.

 Hydro‐Smartdoesnotrecommendinstallingthewaterheaterinanatticdue

tosafetyissues.Ifyouinstallthewaterheaterinanattic:

 Makesuretheunitwillhaveenoughcombustionairandproperventilation.

 Keeptheareaaroundthewaterheaterclean.Whendustcollectsonthe

flamesensor,thewaterheaterwillshutdownonanerrorcode.

 Iftheaboveconditionscannotbemet,usethedirectventconversionkit

PartNo.9007667005(TK‐TV10).

 Placetheunitforeasyaccessforserviceandmaintenance.

 Adrainpan,orothermeansofprotectionagainstwaterdamage,is

re

q

uiredtobeinstalledunderthewaterheaterincaseofleaks.

 Thewarrantywillnotcoverdamagecausedbywaterquality.

 Onlypotablewaterorpotablewater/glycolmixturescanbeusedwiththis

waterheater.Donotintroducepoolorspawater,oranychemically

treatedwaterintothewaterheater.

 Waterhardnesslevelsmustnotexceed7grainspergallon(120ppm)for

singlefamilydomesticapplicationsormorethan4grainspergallon(70

ppm)forallothertypesofapplications.Waterhardnessleadstoscale

formationandmayaffect/damagethewaterheater.Hardwaterscaling

mustbeavoidedorcontrolledbyproperwatertreatment.

 WaterpHlevelsmustbebetween6.5and8.5

 Wellwatermustbetreated.

 Donotinstalltheunitwherewater,debris,orflammablevaporsmaygetinto

theflueterminal.

 Hydro‐Smartrecommendsusingthedirectventkitwhenthewaterheateris

installedinabeautysalon.Somechemicalsusedinabeautysalonmayaffect

theflamesensor.Waterheatermaynotworkproperly.

 Althoughthewaterheaterisdesignedtooperatewithminimalsound,Hydro‐

Smartdoesnotrecommendinstallingtheunitonawalladjacenttoa

bedroom,oraroomthatisintendedforquietstudyormeditation,etc.

 Locateyourheaterclosetoadrainwherewaterleakagewillnotdodamageto

surroundingareas.Aswithanywaterheatingappliance,thepotentialfor

leakageatsometimeinthelifeoftheproductdoesexist.Hydro‐Smartwill

notberesponsibleforanywaterdamagethatmayoccur.Ifyouinstalladrain

panundertheunit,ensurethatitwillnotrestrictthecombustionairflow.









CAUTION

WARNING

Installation

8│Page





CLEARANCES



























ModelTopBottomFrontBackSides

Hydro‐Smart115*12”12”24”1”2“

*Standardindoorinstallationsanddirect‐ventindoorinstallationshavethesameclearances.











INCLUDEDACCESSORIES



Checkthattheseitemsbelowareincludedwiththewaterheater.



1.InstallationManualand

Owner’sGuide



2.

ProductRegistrationCard

3.Remotecontroller

900766605(TK‐RE02)











OPTIONALITEMS

ModelHydro‐Smart115

9007678005(TK‐BF01) ✔

9007667005(TK‐TV10) ✔

9007671005(TK‐PCJr2) ✔

9007608005(TK‐KPWL4)

9007609005(TK‐KPWH4) ✔

9007680005(TK‐KPCT43) ✔





Bottom

Side

Top

Side

Front

Back

Maintainallclearancesaround

thewaterheater.

Qty:1Qty:1Qty:1

Installation

9│Page





1.BackflowPreventer:9007678005(TK‐BF01)

TheBackflowpreventerprevents

thebackflowofairthroughthe

exhaustvent.Thishelpsprevent

harmfulexhaustgasesfrom

enteringthehome,aswellas

helpingtopreventtheunitfrom

freezinginareaswherecoldaircanbeblown

ordrawnintotheexhaustsystem.Installthis

ventdamperinaccordancewiththe

installationinstructionsandanyapplicable

codes.

2.Direct‐VentConversionKit:9007667005

(TK‐TV10)

Thiskitcanbeusedto

convertthewater

heaterfromastandard

ventsystemtoa

direct‐vent(orsealed

combustion)system.

Installthisconversionkitinaccordancewith

theinstallationinstructionsandanyapplicable

codes.

3.PipeCovers:9007671005(TK‐PCJr2)

Thepipecoverprotectstheplumbingpipestothewaterheaterfromunexpected

adjustments.Thispipecoverisfixedtothebottomofthewaterheater,whichhides

theplumbingandimprovesthevisualaspectsofthewholeinstallationforthewater

heater.

4.T‐VentWallThimblewithTermination:9007608005(TK‐KPWL4)and9007609005(TK‐KPWH4)



Theseterminationsareusedwhenventingoutthroughthewall

andarecompatiblewiththeT‐Ventpipesystem.

Theseterminationsarespecialstainlesssteelventsforgas

appliancesandareULlistedasCategoryII,IIIandIV.Thereare

twotypesofterminations:theLouverterminationandtheHood

termination.Fordifferentwallthicknesses,therearetworanges

oflengthsavailable(refertotheventingbrochurefordetails).

Installtheseventterminationsinaccordancewiththeir

installationinstructionsandanyapplicablelocalcodes.



5.Direct‐VentConcentricTermination:9007680005(TK‐KPCT43)



Usedwhenterminatingdirect‐vent(sealed‐combustion)systems,

withdirect‐ventmodelsthatrequirea3”intakeanda4”exhaust.

Thisconcentricterminationprovidestheconvenienceofonly

havingtomakeonepenetrationthroughasidewallinsteadoftwo

separatepenetrationsfortheintakeandexhaustpiping.The

terminationincludesabirdscreen,restrictingsmallanimals,

pests,andforeignobjectsfromenteringintotheventsystem.

Thissidewallterminationisavailableinthreedifferentsizes,to

coverallrangesofwallthicknesses.

Direct‐ventConcentricTermination

Part#Coveringwallthickness

9007680005(TK‐KPCT43‐1)3.9”–7.1”

9007772005(TK‐KPCT43‐2)6.9”–10.1”

9007773005(TK‐KPCT43‐3)9.8”–13.0”

Louver

Termination

9007608005

(TK‐KPWL4)

Hood

Termination

9007609005

(TK‐KPWH4)

Installation

10│Page



WARNINGFORINSTALLATIONS

FORYOURSAFETY,READBEFOREINSTALLATION:

DonotinstalltheHydro‐Smart115wherewater,

debrisorflammablevaporsmaygetintotheflue

terminal.ThismaycausedamagetotheHydro‐

Smart115andvoidthewarranty.





Donotinstallnexttoadryeroranysourceof

airbornedebristhatcanbetrappedinsidethe

combustionchamber,unlessthesystemisdirect

vented.

Hydro‐Smart115isprohibitedandnot

recommendstobeinstalledinanatticdueto

safetyissues.





FORYOURSAFETY,READBEFOREINSTALLATION:

Prohibited

Prohibited

Installation

11│Page

HIGH‐ALTITUDEINSTALLATIONS



Checktheelevationwhereyourwaterheaterisinstalled.Setdipswitchesshowninthetablebelow

dependingonthealtitude.



Altitude0to2,000ft

(DEFAULT)2,000to4,000ft 4,000to6,000ft Over6,000ft

SwitchNo.3OFFON OFF

Consult

Hydro‐Smart

at763‐

331‐3066

SwitchNo.4OFFOFFON



OFF

ON12345678

OFF

ON12345678

OFF

ON12345678



WARNING

Thedarksquaresindicatethe

directionthedipswitchesshould

besetto.

Dipswitches

Installation

12│Page

Improperventingofthisappliancecanresultinexcessivelevelsofcarbon

monoxidewhichcanresultinseverepersonalinjuryordeath.



Improperinstallationcancausenauseaorasphyxiation,severeinjuryordeathfrom

carbonmonoxideandfluegasespoisoning.Improperinstallationwillvoidproduct

warranty.

Wheninstallingtheventsystem,allapplicablenationalandlocalcodesmustbe

followed.Ifyouinstallthimbles,firestopsorotherprotectivedevicesandthey

penetrateanycombustibleornoncombustibleconstruction,besuretofollowall

applicablenationalandlocalcodes.

VENTINGINSTRUCTIONS

‐General‐

Thewaterheatermustbeventedinaccordancewiththesection“VentingofEquipment"ofthelatest

editionoftheNationalFuelGasCode:ANSIZ223.1/NFPA54intheUnitedStatesand/orSection7ofthe

CAN/CSAB149.1NaturalGasandPropaneInstallationCodeinCanada,aswellasapplicablelocal

buildingcodes.

Hydro‐Smartrecommendsthe“T‐Vent”linemanufacturedbyTAKAGI(Referto“T‐Vent”brochurefor

details).However,thefollowingarealsoULlistedmanufacturers:ProTechSystemsInc.(FasNSeal),Flex‐

LInc.,Z‐FlexInc.(Z‐VentIII),Metal‐FabInc.,andHeat‐FabInc.(Saf‐TVent).





Generalrulesforventingwaterheatersare:

 Placethewaterheaterascloseaspossibletotheventterminator.

 Theventcollarofthewaterheatermustbefasteneddirectlytoanunobstructedventpipe.

 Donotweldtheventpipetothewaterheater’sventcollar.

 Donotcuttheventcollaroftheunit.

 Theventmustbeeasilyremovablefromthetopofthewaterheaterfornormalserviceand

inspectionoftheunit.

 Thewaterheaterventmustnotbeconnectedtoanyothergasapplianceorventstack.

 Avoidusinganoversizedventpipeorusingextremelylongrunsofthepipe.

 Forrooftopventing,araincaporotherformofterminationthatpreventsrainwaterfrom

enteringintothewaterheatermustbeinstalled.

 Donotcommonventorconnectanyventfromotherappliancestothewaterheatervent.



Generalrulesforventterminations:

 Avoidlocatingthewaterheaterventterminatornearanyairintakedevices.Thesefanscan

pickuptheexhaustflueproductsfromthewaterheaterandreturnthemtothebuilding.

Thiscancreateahealthhazard.

 Locatetheventterminatorsothatitcannotbeblockedbyanydebris,atanytime.Most

codesrequirethattheterminatorbeatleast12inchesabovegrade,buttheinstallermay

determineifitshouldbehigherdependingonthejobsiteconditionandapplicablecodes.

 Apropersidewallterminatorisrecommendedwhenthewaterheaterisventedthrougha

sidewall.

 Regardingtheclearancesfromtheexhaustterminatortotheairinletoropening,referto

thenextfewpages.

CAUTION

DANGER

Installation

13│Page

‐Exhaustventing‐

ThisisaCategoryIIIapplianceandmustbeventedaccordingly.Theventsystemmustbesealedairtight.

AllseamsandjointswithoutgasketsmustbesealedwithhighheatresistantsiliconesealantorULlisted

aluminumadhesivetapehavingaminimumtemperatureratingof350°F.Forbestresults,aventsystem

shouldbeasshortandstraightaspossible.

 ThiswaterheaterisaCategoryIIIapplianceandmustbeventedaccordinglywithany4”vent

approvedforusewithCategoryIIIorSpecialBHtypegasvent.

 Followtheventpipemanufacturer’sinstructionswheninstallingtheventpipe.

 Donotcommonventthisappliancewithanyotherventedappliance(Donotterminatevent

intoachimney.Iftheventmustgothroughthechimney,theventmustrunalltheway

throughthechimneywithCategoryIIIapprovedorSpecialBHventpipe).

 Whenthehorizontalventrunexceeds5ft.,supporttheventrunat3ft.intervalswith

overheadhangars.

 Themaximumlengthofexhaustventpipingmustnotexceed50ft.(deducting5ft.foreach

elbowusedintheventingsystem).Donotusemorethan5elbows.

DiameterMax.No.ofElbowMax.VerticalandHorizontal(Total)VentLength

4”550ft.

*Foreachelbowadded,deduct5ft.frommax.Ventlength.

No.ofElbowsMax.VerticalorHorizontalLength

050ft.

145ft.

240ft.

525ft.



‐VentingIllustrations‐

HorizontalInstallationDiagramVerticalInstallationDiagram

SidewallVent

Terminator

Wall

BackflowPreventer*

VerticalCondensationDrain**

Fordetailsoftheoptionalitems,refertotheInstallationmanualforeachOptionalitem.

Roo

f

VerticalCondensation

Drain**

RoofFlashing

RainCap

BackflowPreventer*

Installation

14│Page



*BackflowPreventer (Recommendedforfreezingweatherconditions:36

°

Fandbelow)

**VerticalCondensationDrainmustbeinstalledaccordancewithlocalcodes.

HorizontalInstallationDiagram

WithDirect‐VentConcentric

Termination

HorizontalInstallationDiagram

(Withdirect‐venting)

VerticalInstallationDiagram

(Withdirect‐venting)

Thewaterheater

Intakeportof

Direct‐Vent

ConversionKit



InstallationDiagramofDirect‐Vent

ConversionKitwithwaterheater

Wall

Direct‐vent

Concentric

Termination

PlateofDirect‐VentConversionKit



Seethepicturebelowfordetailedconnection

instructionstotheDirect‐VentConversionKit.

VerticalCondensationDrain**



Backflow

Preventer*

Wall

Sidewall

Vent

Terminator

RoofFlashing

Vertical

Condensation

Drain**

Backflow

Preventer*

RainCap

Roo

f

Firestop

Installation

15│Page



‐Ventterminationclearances‐





Canada U.S.A

Directventand

otherthanDirect

Vent

Directvent OtherthanDirectVent

AClearanceabovegrade,veranda,porch,deck,

orbalcony.1foot1foot1foot

BClearancetowindowordoorthatmaybe

opened.3feet1foot

4feetfrombeloworside

opening.1footfrom

aboveopening.

CClearancetopermanentlyclosedwindow * * *

D

Verticalclearancetoventilatedsoffitlocated

abovetheventterminatorwithinahorizontal

distanceof2feet(61cm)fromthecenterline

oftheterminator.

***

EClearancetounventilatedsoffit* * *

FClearancetooutsidecorner* * *

GClearancetoinsidecorner* * *

HClearancetoeachsideofcenterlineextended

abovemeter/regulatorassembly3feet**

IClearancetoserviceregulatorventoutlet. 3feet * *

J

Clearancetonon‐mechanicalairsupplyinlet

tobuildingorthecombustionairinlettoany

otherapplication.

3feet1foot

4feetfrombeloworside

opening.1footfrom

aboveopening.

KClearancetomechanicalairsupplyinlet. 6feet 3feet 3feet

LClearanceabovepavedsidewalkorpaved

drivewaylocatedonpublicproperty.7feet*7feet

MClearanceunderveranda,porchdeck,or

balcony.1foot**

*ForclearancesnotspecifiedinANSIZ223.1/NFPA54orCAN/CSA‐B149.1,pleaseuseclearancesinaccordancewith

localinstallationcodesandtherequirementsofthegassupplier.

Installation

16│Page

Pleasefollowalllocalandnationalcodesinregardstoproperterminationclearances.

Intheabsenceofsuchcodes,thefollowingclearancescanbeusedasguidelines.Local

codessupersedetheseguidelines.







Forsidewallterminations



Exhausttermination

1ft.

1ft.2ft.

Inside

corner

Formultiplesidewallexhaust

terminations(e.g.multi‐unit

systems),anexhausttermination

mustbeatleast1ft.awayfrom

anotherexhausttermination.An

exhaustterminationmustalsobe

atleast2ft.awayfromaninside

corner(iftheadjacentwallisless

than2ft.oflength,theminimum

requireddistanceawayfromthe

insidecornerwillbeequaltothe

lengthofthatadjacentwall).

Fordirect‐ventsidewall

terminationsthatusetwo

separatepenetrationsforthe

intakeandexhaust,distance

theintakeandexhaust

terminationsatleast3ft.away

fromeachother,nomatterthe

orientation.

Formultiple‐unit,direct‐ventsidewall

terminationsthatcombinetheintake

andexhaustintoasinglepenetration,

spaceeachdirect‐ventterminationat

least1ft.awayfromeachother,no

mattertheorientation.Adirect‐vent

terminationmustalsobeatleast2ft.

awayfromaninsidecorner(ifthe

adjacentwallislessthan2ft.of

length,theminimumrequired

distanceawayfromtheinsidecorner

willbeequaltothelengthofthat

adjacentwall).

Formultiple‐unitrooftopterminations(whetherforstandardindooror

direct‐ventinstallations)spaceallexhaustandintaketerminationsin

accordancewithlocalcodes.Anexhaustterminationmustbespacedfrom

awallorsurfaceinaccordancewithlocalcodesaswell.Intheabsenceof

suchacode,anexhaustterminationmustbeahorizontaldistanceofat

least2ft.awayfromawallorsurface.

A:Inaccordancewithlocalcodes

Forrooftopterminations

Airintake

Exhausttermination

A

A

A

A

A

2ft.

Airintake

Exhaust

termination

Exhaustand/ordirect‐vent

sidewallterminationsshould

beatleast2ft.awayfroman

oppositesurface/wall.Do

notplacethetermination

directlyinfrontofan

openingintoabuilding.

2ft.

Exhaust

termination

Airsupplyinlet

3ft.

3ft.

3ft.

Directventtermination

1ft.

1ft.

Inside

corner

2ft.

CAUTION

Installation

17│Page

Sizethegaspipeappropriatelytosupplythenecessaryvolumeofgasrequiredfor

thewaterheaterusingANSI233.1/NFPA54intheUSAorCAN/CSAB149.1inCanada

orlocalcodes.Otherwise,flowcapabilitiesandoutputtemperatureswillbelimited.

 Checkthatthetypeofgasmatchestheratingplatefirst.

 Ensurethatanyandallgasregulatorsusedareoperatingproperlyand

providinggaspressureswithinthespecifiedrangeshownbelow.Excessgas

inletpressuremaycauseseriousaccidents.

 Conversionofthisunitfromnaturalgastopropaneorviseversawillvoidall

warranty.Contactyourlocaldistributortogetthecorrectunitforyourgas

type.Themanufacturerisnotliableforanypropertyand/orpersonal

damageresultingfromgasconversions.



GASSUPPLYANDGASPIPESIZING

‐General‐



 Theminimumandmaximuminletgaspressuresare:

GastypeInletgaspressure

NaturalGasMin.5.0”WC–Max.10.5”WC

PropaneMin.8.0”WC–Max.14.0”WC

 Gaspressureabovethisspecifiedrangeforthewaterheaterand/orinsufficientgasvolumewill

adverselyaffectperformance.Thesepressuresaremeasuredwhenthewaterheaterisinfull

operation.

 Inletgaspressuremustnotexceedtheabovemaximumvalues;gaspressureabovethespecified

rangewillcausedangerousoperatingconditionsanddamagetotheunit.

 Untiltestingofthemaingaslinesupplypressureiscompleted,ensurethegaslinetothewater

heaterisdisconnectedtoavoidanydamagetothewaterheater.







‐Gasconnections‐

1. Installamanualgasshut‐offvalvebetweenthewaterheaterandthegassupplyline.

2. Whenthegasconnectionsarecompleted,itisnecessarytoperformagasleaktest(seebelow)

eitherbyapplyingsoapywatertoallgasfittingsandobservingforbubblesorbyusingagasleak

detectiondevice.

 Thewaterheateranditsindividualshutoffvalvemustbedisconnectedfromthegassupply

pipingsystemduringanypressuretestingofthatsystemattestpressuresinexcessof1/2psi

(3.5kPa).

 Thewaterheatermustbeisolatedfromthegassupplypipingsystembyclosingitsindividual

manualshutoffvalveduringanypressuretestingofthegassupplypipingsystemattest

pressuresequaltoorlessthan1/2psi(3.5kPa).

3. Alwayspurgethegaslineofanydebrisand/orwaterbeforeconnectingtothegasinlet.













WARNING

NOTICE

Installation

18│Page





‐NaturalGasSupplyPiping‐

MaximumDeliveryCapacityofCubicFeetofGasperHourofIPSPipeCarryingNaturalGasof0.60SpecificGravity

BasedonPressureDropof0.5”WC



BasedonEnergyContentof1,000BTU/CubicFt.:Thewaterheaterrequires140CubicFt./hr.

Unit:CubicFeetperHour

PipeSizeLength

Diameter10’20’30’40’50’60’70’80’90’100’125’150’ 200’

¾”363249200171152138127118111104938472

1”684470377323286259239222208197174158 135

1¼”1,404965775663588532490456428404358324 278

1½”2,1031,445 1,161993 880 798 734 683 641 605536486 416

2”4,0502,784 2,2351,913 1,696 1,536 1,413 1,315 1,2341,1651,033 936 801

‐Propane(LP)SupplyPiping‐

MaximumCapacityofPropane(LP)Basedon11”WCsupplypressureata0.5”WCpressuredrop

Unit:kBTUperHour

PipeSize

Length

Diameter

10’20’30’40’50’60’70’80’90’100’125’150’ 200’

¾”567393315267237217196185173162146132112

1”1,071732590504448409378346322307275252213

1¼”2,2051,4961,2121,039913834771724677630567511440

1½”3,3072,2991,8581,5591,417 1,275 1,181 1,086 1,023 976866787675

2”6,2214,3313,4652,9922,646 2,394 2,205 2,047 1,921 1,8111,6061,496 1,260

Formoreinformation,pleaseseethebelow.















BasedonEnergyContentof1,000BTU/CubicFt:



Divideeachappliance’sBTUrequirementby1,000BTUtoget

theappliancesCubicFt.requirement.



Takeintoaccountthedistancetheapplianceisfromthegas

meter,lookintheabovegascharttoproperlysizetheline.



Forsectionsofthegaslinesupplyinggastomorethanone

appliance(Ex:PointAtoPointB),addupthecubicft.

requirementsoftheappliancesthatarebeingsuppliedbythat

section,andsizetothefarthestappliance.



ForExample:ThesectionfromAtoBsuppliesgastothe

furnace,range,anddryer.AddinguptheBTUrequirements

anddividingby1,000yieldsacubicft.requirementof220

cubicft.ofgas.Thefarthestapplianceistherange,whichis50

ft.awayfromthemeter.Lookingattheabovechart,and

underthecolumnof50ft.,SectionAtoBneedstobe1”in

ordertosupply220cubicft.

10’Length

1”PipeSizeC

GasSizingExample

(NaturalGas)

10’Length

3/4”PipeSize

15’Length

1/2”PipeSize

10’Length

1/2”PipeSize

Furnace

120,000BTU

Water

Heater

199,000BTU

5’Length

1‐1/4”PipeSize

Range

65,000BTU

10’Length

3/4”PipeSize

Dryer

35,000BTU

15’Length

1”PipeSize

5’Length

1‐1/4”PipeSize

GasMeter

B

A

Installation

19│Page

1. Turnoffallelectricpowertothewaterheaterifserviceistobeperformed.

2. Turnthemanualgasvalvelocatedontheoutsideoftheunitclockwiseto

theoffposition.



‐Measuringinletgaspressure‐















Thewaterheatercannotperformproperlywithoutsufficientinletgaspressure.Belowareinstructions

onhowtochecktheinletgaspressure.THISISONLYTOBEDONEBYALICENSEDPROFESSIONAL.



1. Shutoffthemanualgasvalveonthesupplygasline.

2. Removethescrewforthepressureportlocatedon

thegasinletofthewaterheatershowninthe

diagramtotheright.

3. Connectthemanometertothepressureport.

4. Re‐openthemanualgasvalve.Checktoseethat

therearenogasleaks.Opensomeofthefixtures

thatusethehighestflowratetoturnonthewater

heater.

5. Checktheinletgaspressure.Whenthewaterheater

isonmaximumburn,themanometershouldread

from5.0”to10.5”WCforNaturalgas,from8.0”to

14.0”WCforPropane.











Pressureport

Installation

20│Page

 Donotusethiswaterheaterifanyparthasbeensubmersedunderwater.

Immediatelycallalicensedprofessionaltoinspectthewaterheatertoreplace

anydamagedparts.

 Donotreversethehotoutletandcoldinletconnectionstothewaterheater.

Thiswillnotproperlyactivatethewaterheater.

WATERCONNECTIONS

Allpipes,pipefittings,valvesandothercomponents,includingsolderingmaterials,mustbesuitablefor

potablewatersystems.

1. Amanualshutoffvalvemustbeinstalledonthecoldwaterinlettothewaterheaterbetween

themainwatersupplylineandthewaterheater.

2. Inaddition,amanualshutoffvalveisalso

recommendedonthehotwateroutletofthe

unit.Ifthewaterheaterisinstalledwithin,or

subjectedto,aclosedloopwatersystem,a

thermalexpansiontankmustbeinstalled.

3. Beforeinstallingthewaterheater,flushthe

waterlinetoremovealldebris,andafter

installationiscomplete,purgetheairfromthe

line.Failuretodosomaycausedamagetothe

heater.

4. Thereisawirewithinthecoldinlettotrap

debrisfromenteringyourheater.Thiswillneed

tobecleanedperiodicallytomaintainoptimum

flow.

‐Pressurereliefvalve‐

Thewaterheaterhasahigh‐temperatureshutoffswitchbuiltinasastandardsafetyfeature(calleda

Hi‐Limitswitch)thereforea“pressureonly”reliefvalveisrequired.

 Thisunitdoesnotcomewithanapprovedpressurereliefvalve.

 Anapprovedpressurereliefvalvemustbeinstalledonthehotwateroutlet.

 ThepressurereliefvalvemustconformtoANSIZ21.22orCAN1‐4.4andinstallationmustfollow

localcode.

 Thedischargecapacitymustbeatleast140,000BTU/h.

 Thepressurereliefvalveneedstoberatedforamaximumof150psi.

 Thedischargepipingforthepressurereliefvalvemustbedirectedsothatthehotwatercannot

splashonanyoneoronnearbyequipment.

 Attachthedischargetubetothepressurereliefvalveandruntheendofthetubetowithin6"

fromthefloor.Thisdischargetubemustallowfreeandcompletedrainagewithoutany

restrictions.

 Ifthepressurereliefvalveinstalledonthewaterheaterdischargesperiodically,thismaybedue

toadefectivethermalexpansiontankordefectivepressurereliefvalve.

 Thepressurereliefvalvemustbemanuallyoperatedperiodicallytocheckforcorrectoperation.

 Novalvemustbeplacedbetweenthereliefvalveandthewaterheater.

Pressure

ReliefValve

Hot

outlet

Cold

inlet

Gas

inlet

AsCloseas

Possible

CAUTION

Installation

21│Page

Followtheelectricalcoderequirementsofthelocalauthorityhaving

jurisdiction.Intheabsenceofsuchrequirements,followthelatesteditionof

theNationalElectricalCodeANSI/NFPA70intheU.S.orthelatesteditionof

CSAC22.1CanadianElectricalCode,Part1,inCanada.

Whenservicingorreplacingpartswithinthewaterheater,labelallwires

priortodisconnectiontofacilitateaneasyanderror‐freereconnection.

Wiringerrorscancauseimproperanddangerousoperation.Verifyproper

operationafterservicing.



ELECTRICALCONNECTIONS

Theindoormodelcomeswithapowerpluginsteadofajunctionbox.Thefollowingprocedureisfor

outdoormodelsonly.

1. Thewaterheatermustbeelectricallygrounded.Donotattachthegroundwiretoeitherthegasor

thewaterpiping.

2. Thewaterheaterrequires120VAC/60Hzelectricalpowersupplythatisproperlygrounded.

 Aproperdisconnect(i.e.on/offswitch,powerplug,etc.)controllingthemainpowertothe

waterheatermustbeprovidedforservicereasons.(Mustcomplywithlocalcodes).

 Connectthepowersupplytothewaterheaterexactlyasshowninthewiringdiagram;



3. Agreenscrewisprovidedinthejunctionboxtogroundtheconnection.

4. Canbehardwiredorwiredtoaplug‐in.

5. Theuseofasurgeprotectorisrecommendedinordertoprotecttheunitfrompowersurges.









































CAUTION

WARNING

Viewofelectricalconnectionsofwaterheater

Connect

Powersupply

120VAC/60Hz

Ground

Greenscrew

Outdoormodelonly

Bottomview

ofwaterheater

Indoormodelonly

Installation

22│Page



REMOTECONTROLLERCONNECTIONS



<Howtoconnecttheremotecontrollertothewaterheater>

1.Disconnectpowersupplyfromthewaterheater.

2.Takeoffthewaterheater’sfrontcover.

3.Locatetheremotecontrollerterminal,picturedbelow(locatedaroundthelowerright‐hand

sideofthecomputerboard).

4.Opentheplasticcoveroftheremotecontroller,andthenattachthetwoforkterminalsto

connectorbaseofthebacksidetheremotecontrollerwithtwoscrews.Makesurethe

terminalsarefirmlyfixed.

5.Pulltheremote’swiresthroughtheholeatthebottomofthewaterheater’scasing.

6.Properlyattachtheremote’swirestotheremotecontrollerterminalonthecomputerboard.

(Nopolarity)

*DoNOTjumporshort‐circuitthewiresorcomputerwillbedamaged.



7.ReplaceFrontCoversecurely.

8.Wiresusedfortheremotecontrollerconnectionmustbe:

 Minimum18AWGwire(Nopolarity)

 Maximum400feetlong



*Fordetailedconnectioninstructionstotheremotecontroller,refertotheinstructionsthatare

packagedwiththeremotecontroller.

Remotecontrollerterminalinsidewater

Frontofremote Backofremote

Connectotherendtotheseterminals

Connecttothese

terminals

9007666005

(TK‐RE02)

Installation

23│Page

 Inordertopurgeairinwaterpipeswithinaclosed‐loopsystem,anairvent

andairseparatorshouldbeinstalledintothesystem.Requiredcirculation

flowratesarelabelednexttoeachapplicationdiagram.Theseflowrate

requirementsmustbefollowed.

 Toxicchemicalsusedinboilertreatmentssuchasalcohol,glycerolandglycol

groupsmustnotbeintroducedintothesystemifthesystemincorporatesan

open‐looppotablewatersystem.

 Thewaterheatercanbeusedtosupplypotablewaterandspaceheatingand

shallnotbeconnectedtoanyheatingsystemorcomponent(s)previously

usedwithnon‐potablewaterwhereanychemicalswereaddedtothewater

heatingappliances.

 Whenthesystemrequireswaterforspaceheatingattemperatureshigher

thanrequiredforotheruses,ameanssuchasamixingvalveshallbe

installedtotemperthewaterforthoseotherusesinordertoreducescald

hazardpotential.

 Watertemperatureover125F(52°C)cancausesevereburnsinstantlyor

deathfromscalds.

 ChemicalssuchasdilutedGlycolcanbeusedforradiantfloor,Hydro/fancoil

airorBaseboardheatingonly.Thedilutedsolutionofglycolmustcontain

between25and55%ofGlycol.Beawarethatinclosed‐loopglycolsystems,

lowpressureintheheatexchangercancauselow‐temperatureboiling,

resultinginexcessivenoiseanddamagetothewaterheater.Consultwith

theglycolmakerforspecificationspriortouse.

APPLICATIONS

‐Space‐HeatingApplications‐



WARNING

Installation

24│Page

‐Dual‐purposehotwaterheating‐

(DomesticandSpaceHeating):





































 PriorityControlDevicessuchasaflowswitch,anAquastatorotherelectronic

controllercanbeusedtoprioritizethedomesticwatersystemovertheheating

system.

 Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecent

editionoftheNationalStandardCode,ANSIZ21.10.3.

 Thisillustrationisaconceptdesignonly.Thereferencetothe1/8thholeincheck

isonlyfortheStateofMassachusetts.Thereareawidevarietyofvariationsto

theapplicationofcontrolsandequipmentpresented.Designersmustaddall

necessarysafetyandauxiliaryequipmenttoconformtocoderequirementsand

designpractice.Formoredetails,contactthemanufacturer.



NOTICE

Thecirculationpumpistoprovidenolessthan2GPMandnomorethan4GPMthrougheachactivated

unitinthesystem.

Allwaterpipingshouldbeinsulated

inaccordancewith780CMR

(Massachusettsenergycode)

Hotwater

supplyand

returnto

heatingcoil

Takagi

P

T

An approved Pressure Only

Relief Valve, Tie to Location

approved by Local Codes and

Must Meet BTU Rating of Takagi

Model Used

Unions

4" Gas Exhaust Vent (Discharge

Must Comply with Local and

State Codes). Can Not Be

Common Vented with Other

Appliances

Atmospheric

Vacuum Breaker

Pump (Must Be Sized Properly

With Each Application). Pump

Shall Run 60 Seconds Every 6

Hours

Pressure

Gauge

Apply Correct

Thermal

Expansion

Tank-Size Per

Application

Tempered

Water To

House

Cold Inlet

Shut-Off

Valve

Check Valve Will

Have 1/8" Hole in

Check, As Per

Mass. Code

Thermometer

Thermostatic Mixing Valve

Shut-Off

Valves

Check Valve

Hot

Water

Outlet

Cold

Water

Inlet

T-Handle Gas

Shut-Off Valve

**Maximum allowable distance of

50-Ft. from water heater and

heating panel

Heating Coil

(used with air-handler)

Diagramatic Layout of Radiant Heating and

Domestic Water Heater Per Mass. Code

Thermometer

Check

Valves

Gas

Inlet

Drain

Plug Water

Filter

120 VAC Switch or Outlet



AnapprovedTemperatureandPressure

ReliedValve,TietoLocationapprovedBy

LocalCodesandMustMeetBTURating

ofwaterheaterModelUsed

Coldwatersupply

Temperedwatertoplumbing

fixtures.Mustmeettemperature

requirementsof248CMR

Automatic

temperingdevice

mustbeinstalled

belowthetopof

thewaterheateras

permanufacturer’s

recommendations

Systeminstalledwithreverseacting

aquastattoshutofffan.Suggested

butnotrequiredby248CMR

NSF‐61product

approvedpump

Electronicallycontrolled pumptimer.

Activatesevery6hoursfor60seconds.

Wireto

p

roducta

pp

roved

p

um

p



Checkvalve

with1/8”hole

drillingin

cla

pp

ero

p

tional

50’‐0”maximumdistancefromwater

heatertofancoilandblack.(Develoed

length)Notincludingcoilinheatingunit

Pipingloop

betweenwater

heaterandfan

coilshallbein

compliance

with248CMR

InitialOperation

25│Page







 ChecktheGASandWATERCONNECTIONSforleaksbeforefiringunitforthefirsttime.

 Openthemaingassupplyvalvetotheunitusingonlyyourhandtoavoidanyspark.Neveruse

tools.Iftheknobwillnotturnbyhand,donottrytoforceit;callaqualifiedservicetechnician.

Forcedrepairmayresultinafireorexplosionduetogasleaks.

 Besuretocheckforthepresenceofleakinggastowardthebottomoftheunitbecausesome

gasesareheavierthanairandmaysettletowardsthefloor.

 ChecktheGASPRESSURE.Refertop.19.

 Donottrytolighttheburnermanually.Itisequippedwithanelectronicignitiondevicewhich

automaticallylightstheburner.

 CheckforPROPERVENTINGandCOMBUSTIBLEAIRtothewaterheater.

 PurgetheGASandWATERLINEStoremoveanyairpockets.

 Donotusethiswaterheaterifanyparthasbeensubmersedunderwater.Immediatelycalla

qualifiedservicetechniciantoinspectthewaterheaterandtoreplaceanydamagedparts.



INITIALOPERATION

1. Refertop.31for

instructions.

2. Fullyopenthemanual

watercontrolvalveonthe

watersupplyline.

3. Openahotwatertapto

verifythatwateris

flowingtothattap.











Thenclosethehotwatertap.

4. Fullyopenthemanualgas

controlvalveinstalled.













5. Turnonthe120volt60Hz

powersupplytothewater

heater.

6. Nowyouarereadyto

enjoyhoursofendless

hotwater.

FORYOURSAFETY,READBEFOREOPERATING

IFYOUSMELLGAS:

 Donottrytostartthewaterheater.

 Donottouchanyelectricswitches;donotuseanyphoneinyourbuilding.

 Immediatelycallyourgassupplierfromaneighbor’sphone.Followthegas

supplier’sinstructions.

 Ifyoucannotreachyourgassupplier,callthefiredepartment.

WARNING

OperatingSafety

26│Page

OPERATINGSAFETY

FORYOURSAFETYREADBEFOREOPERATING

WARNING:Ifyoudonotfollowtheseinstructionsexactly,afireorexplosionmayresultcausing

propertydamage,personalinjuryorlossoflife.

A. Thiswaterheaterdoesnothaveapilot.Itisequippedwithanignitiondevicethat

automaticallylightstheburner.Donottrytolighttheburnerbyhand.

B. BEFOREOPERATINGsmellallaroundthewaterheaterareaforevidenceofleakinggas.Be

suretosmellnexttothefloorbecausesomegasisheavierthanairandwillsettleonthe

floor.

WHATTODOIFYOUSMELLGAS.

 Donottrytolightanyappliance.

 Donottouchanyelectricswitch;donotuseanyphoneinyourbuilding.

 Immediatelycallyourgassupplierfromaneighbor'sphone.Followthegassupplier's

instructions.

 Ifyoucannotreachyourgassupplier,callthefiredepartment.

C. Useonlyyourhandtoturnthegasvalveknob.Neverusetools.Iftheknobwillnotturnby

hand,don'ttrytorepairit,callaqualifiedservicetechnician.Forceorattemptedrepairmay

resultinafireofexplosion.

D. Donotusethiswaterheaterifanyparthasbeenunderwater.Immediatelycallaqualified

servicetechniciantoinspectthewaterheaterandtoreplaceanydamagedparts.

OPERATINGINSTRUCTIONS

1. STOP!ReadthesafetyinformationaboveorintheOwnersManual.

2. Turnoffallelectricpowertothewaterheater.

3. Donotattempttolighttheburnerbyhand.

4. Turnthemanualgasvalvelocatedontheoutsideoftheunitclockwise↻totheoffposition.

5. Waitfive(5)minutestoclearoutanygas.Ifyouthensmellgas.STOP!Follow"B"inthesafety

informationaboveonthislabel.Ifyoudon'tsmellgas,gotonextstep.

6. Turnthemanualgasvalvelocatedontheoutsideoftheunitcounterclockwise↺totheON

position.

7. Turnonallelectricalpowertothewaterheater.

8. Ifthewaterheaterwillnotoperate,followtheinstructions“toTurnOffGastowaterheater"

andCallyourservicetechnicianorgassupplier.

TOTURNOFFGASTOAPPLIANCE

1. Turnoffallelectricpowertothewaterheaterifserviceistobeperformed.

2. Turnthemanualgasvalvelocatedontheoutsideoftheunitclockwise↻totheoff position.

O

O

O

w

w

w

n

n

n

e

e

er

r

r’

’

’

s

s

s

G

G

G

u

u

u

i

i

i

d

d

d

e

e

e

OperatingSafety

27│Page

DANGER



Vaporsfromflammableliquidswillexplodeandcatchfirecausingdeathorsevereburns.

Donotuseorstoreflammableproductssuchasgasoline,solventsoradhesivesinthesameroom

orareanearthewaterheater.

Keepflammableproducts:

1. Farawayfromheater

2. Inapprovedcontainers

3. Tightlyclosed

4. Outofchildren'sreach

Vapors:

1. Cannotbeseen

2. Vaporsareheavierthanair

3. Goalongwayonthefloor

4. Canbecarriedfromotherroomstothemain

burnerbyaircurrents

WARNING:Donotinstallwaterheaterwhereflammableproductswillbestored.

Readandfollowwaterheaterwarningsandinstructions.Ifowner’smanualismissing,contact

Hydro‐Smart.

WARNING

Theoutlethotwatertemperatureofthewaterheaterisfactorysetat122°F(50°C).

Usethisheateratyourownrisk.Thesetoutletwatertemperaturecancausesevereburnsinstantlyor

deathfromscalds.Testthewaterbeforebathingorshowering.

Donotleavechildrenoraninfirmpersoninthebathunsupervised.

DANGER

HotWatertemperatureover125°F(52°C)cancausesevereburns

instantlyordeathfromscalding.Children,disabledandelderlyareatthe

highestriskofbeingscalded.Feelwatertemperaturebeforebathingor

showering.Temperaturelimitingvalvesareavailable.Askaprofessional

person.

WARNING:CaliforniaProposition65listschemicalsubstancesknowntothestatetocausecancer,

birthdefects,death,seriousillnessorotherreproductiveharm.Thisproductmaycontainsuch

substances,betheiroriginfromfuelcombustion(gas,oil)orcomponentsoftheproductitself.

NormalOperation

28│Page

 HotWatertemperaturesover125F(52°C)cancausesevere

burnsinstantlyordeathfromscalding.

 Theoutlethotwatertemperatureofthewaterheaterisfactory

setat122°F(50°C).





NORMALOPERATION

GENERAL























OPERATION



<Settemperature>

1.Turnonthe120VACpowersupplytothewaterheater.

2.Pressthe"OPERATION"buttonontheremoteinordertoturntheremotecontrolleron.Itshowsthe

settemperatureonitsdisplayasshownthepicturetothebelow.

3.Pressthe"HOT"buttonorthe"COLD"buttontosetthetemperaturesettingoftheunit.

4.Youcansetthetemperaturefrom99°F(38°C)to167°F(75°C).

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<Exteriorviewoftheremotecontroller>

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<Thetemperatureoptions>

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99100102104106108110 111 113 115 117 122 131140158 167

 Flowratetoactivatethewaterheater:0.5gallonsperminuteatthe

defaultsettemperature

 Flowratetokeepthewaterheaterrunning:0.4gallonperminute

NOTICE

WARNING

"COLD"Button

"OPERATION"Button

"HOT"Button

"INFOMATION"Button

CAUTION

Temperatureabove122°F(50°C)cancausesevereburnsordeathfrom

scalding.Children,disabledandtheelderlyareathighriskofbeinginjured.

NormalOperation

29│Page



TEMPERATURESETTINGS

‐Withoutremotecontroller‐

Thereare4temperaturesthatyoucanselectfrombychangingthedipswitchsettingsonthe

computerboardwithouttheremotecontroller.Seethetablebelow.

Temperaturesavailable

113F122F131F140F

Fordetaileddipswitchsettingsforeachtemperature,refertothenextpage.

 Thetemperaturehasbeenpresetatthefactoryto122°F(50°C).

 Iftemperaturesotherthantheoneslistedabovearerequired,theremotecontrollercan

provideseveralmoretemperatureoptions.Refertop.9foralistofavailabletemperatureson

theremotecontroller.

 Thiswaterheaterisanon‐demand,tanklesswaterheaterdesignedtoefficientlysupply

endlesshotwaterwithoutreferencetotemperaturesettings.































Dipswitches

‐Dipswitchsettingsforeachtemperatureonthecomputerboard‐

(45

OFF

ON

C)

113 F

12345678

OFF

ON12345678

(50 C)

122 F

DEFAULT

(55

OFF

ON

C)

131 F

12345678

(60

OFF

ON

C)

140 F

12345678

TemperatureSettings 

 Turnoffthepowersupplytothe

waterheaterbeforechangingthe

dipswitchsettings.

 Onlychangetheswitcheswiththe

darksquares.Thedarksquares

indicatewhichdirectionthe

di

p

switchshouldbesetto.

WARNING

NormalOperation

30│Page

Onlypipeswithinthewaterheaterareprotectedbythefreezeprotection

system.Anywaterpipes(hotorcold)locatedoutsidetheunitwillnotbe

protected.Properlyprotectandinsulatethesepipesfromfreezing.

HouseholdFlowRates

TakenfromUPC2006

FLOW

 Theflowratethroughthewaterheaterislimitedtoa

maximumof6.6GPM.

 Thetemperaturesetting,alongwiththesupply

temperatureofthewaterwilldeterminetheflowrate

outputoftheunit.

 Pleaserefertothetemperaturevs.gallonsperminute

chartonp.41todeterminethelikelyflowratesbased

onyourlocalgroundwatertemperatureandyour

desiredoutletwatertemperature.

 BasedontheUnitedStatesDepartmentofEnergy

methodoftestingwaterheateroutput,thewaterheaterisratedfor172gallonsperhour(GPH)or2.9

gallonsperminute(GPM)forNaturalGas,and184GPHor3.1GPMforPropane,whenraisingthe

watertemperatureby77F(from58Fto135F).

 Refertothetabletothetoprightfortypicalhouseholdplumbingfixtureflowratestodetermine

whatthewaterheatercandoinahouseholdapplication.







FREEZEPROTECTIONSYSTEM

 Thisunitcomesequippedwithheatingblockstoprotectitagainstdamagesassociatedwithfreezing.

 Forthisfreezeprotectionsystemtooperatetherehastobeelectricalpowertotheunit.Damageto

theheatexchangercausedbyfreezingtemperaturesduetopowerlossisnotcoveredunderthe

warranty.Incaseswherepowerlossescanoccur,considertheuseofabackuppowersupply.

 Thefreezeprotectionsystemwillactivatewhenthesurroundingand/oroutsidetemperaturesdrop

below36.5°F(2.5°C).

 FortheHydro‐Smart115models:

 Inanyareassubjecttofreezingtemperatures,Hydro‐Smarthighlyrecommendsanindoor

installationwithanindoormodel.Insuchaninstallation,freezingissuescanonlyoccurif

coldairentersthroughtheventingintotheheatexchanger,whetherbynegativepressures

withintheinstallationlocationorbystrongoutsidewinds.

 Hydro‐Smartalsohighlyrecommendstheuseofabackflowventdampertominimizethe

amountofcoldairenteringthroughtheexhaustventingwhenthewaterheaterisoff.



Itistheinstaller’sresponsibilitytobeawareoffreezingissuesandtakeallpreventativemeasures.

Hydro‐Smartwillnotberesponsibleforanydamagetotheheatexchangerasaresultoffreezing.



 Ifyouwillnotbeusingyourheaterforalongperiodoftime:

1. Completelydraintheunitofwater.Refertop.31.

2. Disconnectpowertoyourheater.

Thiswillkeepyourunitfromfreezingandbeingdamaged.

Appliance/UseFlowRate(GPM)

LavatoryFaucet1.0

BathTub4.0–10.0

Shower2.0

KitchenSink1.5

Dishwasher1.5

Washingmachine4.0

CAUTION

NormalOperation

31│Page

Turnofftheelectricalpowersupplyandclosethemanualgasshutoffvalve

andthemanualwatercontrolvalvebeforeservicing.

MAINTENANCEANDSERVICE



 Besurethatallopeningsforcombustionandventilationairarenotblocked.

 Theventingsystemshouldbecheckedannuallyforanyleaks,corrosion,blockagesordamage.

 Theburnershouldbecheckedannuallyfordust,lint,greaseordirt.

 Keeptheareaaroundthewaterheaterclear.Removeanycombustiblematerials,gasolineorany

flammablevaporsandliquids.

 Inaccordancewithalllocalcodesandcommonsafetypractices,Waterdischargedfromthepressure

reliefvalecancausesevereburnsinstantlyfromscalding.DONOTtouchthepressurereliefvalve.

 Ifthereliefvalvedischargesperiodically,itmaybeduetothermalexpansioninaclosedwatersupply

system.Contactthewatersupplierorlocalplumbinginspectoronhowtocorrectthissituation.

 Visualcheckofburnerflames(seebelow)throughtheburnerwindowintheburnerassemblylocated

atthemiddleofthewaterheater.













Hydro‐Smartrecommendshavingtheunitcheckedonceayearorasnecessarybyalicensedtechnician.

Ifrepairsareneeded,anyrepairsshouldbedonebyalicensedtechnician.







UNITDRAINING



1. Closethemanualgasshutoffvalve.

2. Turnoffpowertotheunitandwaitacoupleof

seconds.Turnonagain.

3. Wait30seconds,andthenturnoffpowertotheunit,

yetagain.

4. Closethewatershutoffvalve.

5. Openallhotwatertapsinthehouse.Whenthe

residualwaterflowhasceased,closeallhotwater

taps.

6. Haveabucketorpantocatchthewaterfromthe

unit’sdrainplugs.Unscrewthetwodrainplugs(Large

andsmall)todrainallthewateroutoftheunit.

7. Waitafewminutestoensureallwaterhas

completelydrainedfromunit.

8. Securelyscrewthedrainplugsbackintoplace.Hand‐

tightenonly.

WARNING

DrainPlug

(Large)

WaterValve

DrainPlug

(Small)

GasValve

Unsatisfactory

SatisfactoryUnsatisfactory

BlueflameRedorYellow

flame

Flame

blowingup

Troubleshooting

32│Page

GENERAL

TROUBLESHOOTING



‐TEMPERATUREandAMOUNTOFHOTWATER‐

PROBLEMSOLUTIONS

Ittakeslongtimetoget

hotwateratthe

fixtures.



 Thetimeittakestodeliverhotwaterfromthewaterheaterto

yourfixturesdependsonthelengthofpipingbetweenthetwo.

Thelongerthedistanceorthebiggerthepipes,thelongeritwill

taketogethotwater.

Thewaterisnothot

enough.



 Comparetheflowandtemperature.Seethechartsonp.41.

 Checkcrossplumbingbetweencoldwaterlinesandhotwater

lines.

 Isthegassupplyvalvefullyopen?(p.25)

 Isthegaslinesizedproperly?(p.18)

 Isthegassupplypressureenough?(p.19)

 Isthesettemperaturesettoolow?(p.28‐29)

Thewateristoohot. Isthesettemperaturesettoohigh?(p.28‐29)

Thehotwaterisnot

availablewhenafixture

isopened.



 Makesuretheunithas120VAC/60Hzpowersupply.

 Ifyouareusingtheremotecontroller,isthepowerbuttonturned

on?

 Isthegassupplyvalvefullyopen?(p.25)

 Isthewatersupplyvalvefullyopen?(p.25)

 Isthehotwaterfixturesufficientlyopentodrawatleast0.5GPM

throughthewaterheater?(p.28)

 Istheunitfrozen?(p.30)

 Isthereenoughgasinthetank/cylinder?(ForPropanemodels)

Thehotwaterturns

coldandstayscold.

 Istheflowrateenoughtokeepthewaterheaterrunning?(p.28)

 Doestherecirculationlinehaveenoughcheckvalves?(p.4)

 Isthegassupplyvalvefullyopen?(p.25)

 Arethefixturescleanofdebrisandobstructions?

 Checkiftheflowrateistoolow.(p.28‐29)

Fluctuationinhotwater

temperature.



 Isthegaslinesizedproperly?(p.18)

 Isthesupplygaspressuresufficient?(p.19)

 Checkforcrossconnectionbetweencoldwaterlinesandhot

waterlines.

Troubleshooting

33│Page

‐WATERHEATER‐

PROBLEMSOLUTIONS

Unitdoesnotignitewhen

watergoesthroughtheunit.



 Istheflowrateover0.5GPM?(p.28)

 Checkforreverseconnectionandcrossconnection.

 Ifyouusetheremotecontroller,isthepowerbutton

turnedon?

 Checkiftheinlettemperatureistoohigh.

Thefanmotorisstill

spinningafteroperationhas

stopped.



 Thisisnormal.Afteroperationhasstopped,thefanmotor

keepsrunningfrom15to70secondsinordertore‐ignite

quickly,aswellaspurgealltheexhaustgasoutoftheflue.

Unitsoundsabnormalwhile

inoperation

 ContactHydro‐Smart.

‐Remotecontroller‐

(OPTIONAL)‐

Remotecontrollerdoesnot

displayanythingwhenthe

powerbuttonisturnedon.

 Makesuretheunitissuppliedwithpower.

 Makesuretheconnectiontotheunitiscorrect.(p.22) 



AnERRORcodeisdisplayed. Pleaseseep.34‐36.

Troubleshooting

34│Page

ERRORCODES

 Theunitsareselfdiagnosticforsafetyandconveniencewhentroubleshooting.

 Ifthereisaproblemwiththeinstallationortheunit,dependingonthemodelorifthereisa

remotecontrollerinstalled,itwilleitherdisplayablinkingredLED,ortheerrorcodewilldisplayon

theremotecontrollerifitisinstalled.

 Consultwiththetableonthefollowingpageforthecauseofeacherrorcode.







‐Singleunitinstallations‐



Example:Ifyourunitdisplaysthe“321”errorcode(whichsignifiesaninletthermistorfailure)



Hydro‐Smart115:TheredLEDonthecomputerboardwillbeblinkingtwotimes.



 Iftheremotecontroller9007666005(TK‐RE02)isinstalled:“32”willdisplayonthescreeninits

entirety.

Errorcodeonthe remote

controller9007666005(TK‐RE02)

Errorcodeonthecomputerboard

RedLED

Troubleshooting

35│Page

‐FAULTANALYSISOFERRORCODES‐



RedLED Remote Malfunction

descriptionDiagnosis

One

Time03Incorrectdipswitch

setting CheckthedipswitchsettingsonthePCB.(Part#701)

Five

Times

10Warningforthe

“991”errorcode



Checkthegastypeofthewaterheater.

 Checkifthereisanyblockageintheintakeairand/or

exhaust.

 Ifthewaterheaterisinstalledasadirect‐ventsystem,

checkwhetherthereisenoughdistancebetweenthe

intakeairterminalandtheexhaustterminal.

 Checkthealtitude/elevationofareaofwherethe

waterheaterinstalled.

 Checkifthereisgreaseand/ordirtintheburner(Part

#101)andthefanmotor(Part#103),especiallyifthe

waterheaterhasbeeninstalledinacontaminated

area.

Three

Times

11Ignitionfailure





CheckiftheHi‐limitswitch(Part#412)isproperly

functioning.

 Checkforconnection/breakageofwires(Part#413,

708,709,710,712),burnmarksonthecomputer

board(Part#701),and/orsootontheflamerod(Part

#108).

 Checkifthereisabuzzingsparkignitionsoundcoming

fromtheburner(Part#101)whenwaterheater

preparesforcombustion.

 Listenforthedouble“clunk”soundcomingfromgas

valveassembly(Part#102)whenwaterheatergoes

intocombustion.

 Checkifthereisleakingfromheatexchanger.(Part

#401)

Three

Times

12Lossofflame



CheckiftheHi‐limitswitch(Part#412)isproperly

functioning.

 Checkforconnection/breakageofwires(Part#413,

708,709,710,712),burnmarksonthecomputer

board(Part#701),and/orsootontheflamerod(Part

#108).

 Checkifthereisleakingfromheatexchanger.(Part

#401)

Two

Times

31Outletthermistor

failure Checkforconnection/breakageofwiresand/ordebris

onthermistor.(Part#407,408)

32Inletthermistor

failure

Two

Times

39Air–fuelRatioRod

failure

 Checkforconnection/breakageofwires(Part#709)

and/orsootontheAFRrod.(Part#108)

IftheerrorcodedisplayedonthecomputerboardoftheWaterheaterorremotecontroller,

pleasecheckthefollowing.Afterchecking,Consultwiththemanufacturer.

Warranty

36│Page

RedLEDRemoteMalfunction

descriptionDiagnosis

Six

Times

51AbnormalGas

SolenoidValve



Check

f

orconnection/breakageofwires(Part#708)

and/orburnmarksonthecomputerboard(Part

#701).

Six

Times

55AbnormalMain

GasValve



Check forconnection/breakageofwires(Part#708)

and/orburnmarksonthecomputerboard(Part

#701).

Four

Times

61FanMotorFault



Check forconnection/breakageofwires,dustbuildup

inthefanmotor(Part#103)and/orburnmarksonthe

computerboard(Part#701).



Checkforfrozen/corrosionofconnectors(Part#103).

One

Time

70Computerboard

Fault



Checkforconnection/breakageofwires(Part#714)

and/orburnmarksonthecomputerboard(Part

#701).

 Checkthepowersupplyofthewaterheater.

SixTimes72FalseFlame

Detection



Forindoormodels,checkifcondensatedrainis

installedontheventcollarofthewaterheater.

 Checkifthereisleakingfromheatexchanger(Part

#401).

N/A74Miscommunication

betweenWater

heaterandremote

controller



Checkthemodeltypeoftheremotecontroller.

 Inspecttheconnectionsbetweenthewaterheater

andremotecontroller.

 Checkthepowersupplyofthewaterheater.

Five

Times

99Imperfect

combustion



Checkthegastypeofthewaterheater.

 Inspecttheenvironmentaroundthewaterheater.

Determinehowlongtheunithasbeeninstalled.

 Checkthealtitude/elevationoftheareaofwherethe

waterheaterinstalled.

 Checkifthereisanyblockageintheintakeairand/or

exhaust.

 Ifthewaterheaterisinstalledasadirect‐ventsystem,

checkwhetherthereisenoughdistancebetweenthe

intakeairterminalandtheexhaustterminal.

 Checkifthereisgreaseand/ordirtintheburner(Part

#101)andthefanmotor(Part#104),especiallyifthe

waterheaterhasbeeninstalledinacontaminated

area.

Warranty

37│Page

COMPONENTSDIAGRAM

Caseassembly

701

707

709

714

710

708

103

402402

407408719

Waterwayassembly

Computerboard

Assembly

456

460

409

455

410

454

408

064

C

402

461

458

052

415

064

460

456

404

405

454

407

457

B

463

413 453

414

412

063

451

B

C

401

414

452

450

Waterinletsection

Wateroutletsection

002

050

702

052

007

052

052

003 052

001

004

051

720

704

721

Temperature

remotecontroller

722

Warranty

38│Page

Burnerassembly

Burnerassembly

106107

108

109

110

065

712

701

053

120

053

712

711

053

714

062

055

119

151

118

052

121

703

053

704

705

401

104

105

101

709

111

052

053

112

113

114

708

053

067

055

053

706

053

059

103

115

058

713

150

061

059

101

709

111

102

Manifold

assembly

Warranty

39│Page

PARTSLIST 

Item#DescriptionPart#

001

002

003

004

005

Caseassembly

Frontcover

Airblockageplate

Bracket

Junctionbox

319143‐159

319143‐163

319143‐150

319143‐184

319143‐014

006

007

Junctionboxinnerplate

Backguardpanel

319143‐128

319143‐338

050

051

052

053

055

ScrewM4×12 (W/Washer)

ScrewM4×10(W/Washer)

ScrewM4×10(Coated)

ScrewM4x10

HexheadscrewM4x8

319143‐025

319143‐325

319143‐026

319143‐060

319143‐063

056

058

059

061

062

ScrewM4x10

ScrewM3x10

PanscrewM4x12(W/Washer)

TaptightscrewM4x12FEZN

PanscrewM4x10

319143‐372

319143‐327

319143‐061

319143‐201

319143‐062

063

064

065

066

067

ScrewM3x6

ScrewM4x6

PanscrewM4x8

Nylonclamp

Wireclamp60

319143‐087

319143‐328

319143‐059

319143‐143

319143‐048

101

102



103

104

105

Burnerassembly

ManifoldwithgasvalveassemblyLP

ManifoldwithgasvalveassemblyNA

Fanmotor

Burnerholdergasket

Burnergasket

319143‐161

319143‐169

319143‐165

319143‐347

319143‐341

319143‐031

106

107

108

109

110

Burnerwindow

Rodholdergasket

Flamerod

Igniterrod

Rodholder

319143‐033

319143‐034

319143‐339

319143‐373

319143‐340

111

112

113

114

115

Rodcap

Burnerdamper

ManifoldgasketA

ManifoldgasketB

Fandamper

319143‐038

319143‐170

319143‐044

319143‐045

319143‐160

118

119

120

121

Gasinlet

Gasinletring

Igniterplate

Surgeboxplate

319143‐050

319143‐049

319143‐051

319143‐213

150

151

O‐ringP18 NBR(Black)

O‐ringP20 NBR(Black)

319143‐350

319143‐057

Warranty

40│Page

Item#DescriptionPart#

401

402

404

405

407

Heatexchangerassembly

Flowadjustmentvalve/Flowsensor

Waterinlet

Inletdrainplug

Inletthermistor

319143‐162

319143‐167

319143‐193

319143‐197

319143‐214

408

409

410

412

413

Outletthermistor

Wateroutlet

Outletdrainplug

Hi‐Limitswitch

Overheat‐cut‐offfuse

319143‐218

319143‐194

319143‐199

319143‐228

319143‐149

414

415

Heater

Inletheater

319143‐200

319143‐078

450

451

452

453

454

Pipeheaterfixingplate

Heaterfixingplate16

Fusefixingplate18

Fusefixingplate14

O‐ringP4FKM

319143‐088

319143‐125

319143‐066

319143‐146

319143‐082

455

456

457

458

460

O‐ringP6FKM

O‐ringP14FKM

O‐ringP15FKM

O‐ringP16FKM

Fastener“14‐22”

319143‐080

319143‐100

319143‐091

319143‐083

319143‐105

461

463

Fastener“16A”

Siliconring

319143‐226

319143‐065

701

702

703

704

705

Computerboard

Transformer

Surgebox

AC120Vwire

Transformerwire

319143‐164

319143‐182

319143‐168

319143‐427

319143‐155

706

707

708

709

710

AC120VPowerON‐OFFswitch

Switchwire

Gasvalvewire

Flamerodwire

EH‐IGwire

319143‐141

319143‐154

319143‐207

319143‐171

319143‐209

711

712

713

714

719

Igniter

Highvoltageignitercable

Freezeprotectionthermostat

Proportionalgasvalvewire

Computerboardcover

319143‐052

319143‐039

319143‐185

319143‐220

319143‐212

720

721

Rubbergrommet

Cablestrap

319143‐426

319143‐425

722Temperatureremotecontroller 319143‐352

Warranty

41│Page

OUTPUTTEMPERATURECHART

Output Temperature vs. GPM (Max. 6.6 GPM) with Various Inlet Water Temperature

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

Out Put Hot Water GPM

40 F 50 F 60 F 70 F

40 F 3.8 3.5 3.3 3.1 2.9 2.7 2.5 2.4 2.3 2.1 1.9 1.8

50 F 4.6 4.2 3.8 3.5 3.3 3.1 2.9 2.7 2.5 2.3 2.1 2.0

60 F 5.7 5.1 4.6 4.2 3.8 3.5 3.3 3.1 2.9 2.5 2.3 2.2

70 F 6.6 6.6 5.7 5.1 4.6 4.2 3.8 3.5 3.3 2.9 2.5 2.4

100 105 110 115 120 125 130 135 140 150 160 165

Chartisbasedonproperlysizesgasline

Warranty

42│Page

LIMITEDWARRANTY



1. Generaltermsoflimitedwarranty:

Thislimitedwarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhichvaryfromState

toState.Themanufacturer,Hydro‐SmartInc.willhonorthewarrantytotheoriginalretailbuyeratthe

originallocationonly,anditisnottransferable.THISWARRANTYCOVERSONLYFAILEDMECHANICALAND

ELECTRICALPARTSDUETOFACTORYDEFECTSUNDERNORMALUSAGEFORTHEPRODUCT’SINTENDED

PURPOSES.ONLYDIRECTDAMAGESSHALLBERECOVERABLEBYACLAIMANTUNDERTHISLIMITED

WARRANTYAND,INNOEVENT,WHETHERASARESULTOFBREACHOFCONTRACT,BREACHOFWARRANTY,

TORTLIABILITY(INCLUDINGNEGLIGENCE),STRICTLIABILITY,INDEMNITYOROTHERWISEWILLHydro‐Smart

BELIABLEFORANYSPECIAL,INCIDENTAL,ORINDIRECTCONSEQUENTIALDAMAGESINCLUDINGPROPERTY

DAMAGE,PERSONALDAMAGES,LOSSOFUSE,ORINCONVENIENCE.SOMESTATESDONOTALLOWTHE

EXCLUSIONORLIMITATIONOFINCIDENTALORCONSEQUENTIALDAMAGES,SOTHEABOVELIMITATION

MAYNOTAPPLYTOYOU.

2. PartsWarranty

Ifallofmechanicaland/orelectricalpartfailswithintwo(2)yearsinnormaloperationwith“IntegratorPanel”

andproperinstallation(seeinstructionfrominstallationmanual)fromthepurchasingdate,Hydro‐SmartInc.

willfurnishareplacementpart(s)excludingfieldlaborandshipping.



3. Repair,ReplacementorRefund:

Themanufacturer,Hydro‐SmartInc.oritsauthorizedServiceRepresentativewill,atitssolediscretion,repair

orreplaceanyfailedordefectivemechanicalorelectricalparts,orcomponentsthereof,or,ifHydro‐Smartor

itsauthorizedServiceRepresentativecannotreplacesaidparts,andrepairisnotcommerciallypracticable,

Hydro‐SmartoritsauthorizedServiceRepresentativewillrefundthepurchaseprice.Hydro‐Smartorits

authorizedServiceRepresentativemay,atitssolediscretion,usenew,refurbishedorreconditionedparts.



4. LimitationonDurationofImpliedWarranties:

ANYIMPLIEDWARRANTIESARISINGUNDERSTATELAW,INCLUDINGTHEIMPLIEDWARRANTIESOFFITNESS

FORAPARTICULARPURPOSEANDMERCHANTABILITY,SHALLINNOEVENTEXTENDPASTTHEEXPIRATION

OFANYWARRANTYPERIODHEREUNDER.SOMESTATESDONOALLOWLIMITATIONSONHOWLONGAN

IMPLIEDWARRANTYLASTS,SOTHEABOVELIMITATIONMAYNOTAPPLYTOYOU.



5. THISWARRANTYWILLNOTCOVERTHEFOLLOWING:

 AnyHydro‐Smartunitthatisnotinstalledbyalicensedplumber,gasinstaller,orcontractor.

 Damagesduetoaccidents,abuse,misuse,improperinstallation,misapplication,orincorrectsizing.

 Damagesduetofires,flooding,freezing,electricalsurges,oranyActsofGod.

 Damagesduetounauthorizedalterations,attachments,and/orrepairs.

 Damagesduetoalackofmaintenance.(e.g.watertreatmentsystem,ventblockage,etc.)

 AnyHydro‐Smartunitinstalledinanimproperenvironment(e.g.corrosive,dusty,chemically

contaminated,excessivelint,etc.).

 Freezedamagethatoccurswithouttakingproperpreventivemeasuresasdescribedintheinstallation

manual.

 Condensatedamageduetoimproperlyinstalledorlackofacondensatetrap(drain).

 AnyHydro‐Smartunitnotinstalledincompliancewithallapplicablelocal&statecodes,ordinances,and

goodtradepractices.

 AnyHydro‐Smartunitsoldtoorinstalledinareasoutsideofthefiftystates(andtheDistrictof

Columbia)oftheUnitedStatesofAmericaandCanada.

 AnyHydro‐Smartunitinstalledinapplicationsthatcausethewaterheatertoactivatemorethan300

timesperday(thisaveragestoanactivationevery5minutesina24‐hourperiod).

 Anyfailuresthatarenotduetodefectsinmaterialsorworkmanship(mechanicaland/orelectricalparts).

 Damagesduetoimproperinstallation:

 Gas:incorrectgaspipesizing,incorrectgasmetersizing,incorrectgastype,and/orgaspressures

thatfalloutsidetheproduct’sspecifiedrange.

 Water:incorrectwaterpipesizing,waterpressuresthatfalloutsidetheproduct’sspecifiedrange,

recirculationflowratesthatfalloutsidetheproduct’sspecifiedrange(airremoval),and/orlackof

propermethodsofairremovalinaclosed‐loop,circulationsystem(seeinstallationmanualfor

details).

 Electric:supplypowervoltagesthatfalloutsidetheproduct’sspecifiedrange.



Warranty

43│Page

 Damagesduetowaterquality:

 Introductionofliquidsotherthanpotablewaterorpotablewater/glycolmixturesintotheproduct.

 Introductionofpoolwater,spawater,oranychemicallytreatedwaterintotheproduct.

 Introductionofhardwatermeasuringmorethan7grainspergallon(120ppm)forsinglefamily

domesticapplicationsormorethan4grainspergallon(70ppm)forallothertypesofapplications

intotheproduct.

 Introductionofuntreatedorpoorlytreatedwellwaterintotheproduct.

 IntroductionofwaterwithpHlevelslessthan6.5andgreaterthan8.5intotheproduct.

 FailureofHydro‐Smartduetouseotherthanmicroboilerwith“IntegratorPanel”orifnotusewith

“IntegratorPanel”.





Warranty

44│Page





75E012‐1

HS115