A.O. Smith 197835-001 Water Heater User Manual


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Thank Youforpurchasingthiswaterheater.Properlyinstalledand
maintained,itshouldgiveyouyearsoftroublefreeservice.
Abbreviations Found In This Instruction Manual:
•CSA-CanadianStandardsAssociation
•ANSI-AmericanNationalStandardsInstitute
•NFPA-NationalFireProtectionAssociation
•ASME-AmericanSocietyofMechanicalEngineers
•GAMA-GasApplianceManufacturer’sAssociation
•UL-UnderwritersLaboratoriesInc.
Thisgas-redwaterheaterisdesigncertiedbyUnderwriters
LaboratoriesInc.underAmericanNationalStandard/CSAStandard
forGasWaterHeatersANSIZ21.10.3•CSA4.3(currentedition).
PREPARING FOR THE INSTALLATION
1. Readthe“GeneralSafety”section,page3and4ofthismanual
rstandthentheentiremanualcarefully.Ifyoudon’tfollowthe
safetyrules,thewaterheaterwillnotoperateproperly.Itcould
causeDEATH,SERIOUSBODILYINJURYAND/ORPROPERTY
DAMAGE.
Thismanualcontainsinstructionsfortheinstallation,operation,
andmaintenanceofthegas-redwaterheater.Italsocontains
warningsthroughoutthemanualthatyoumustreadandbe
awareof.Allwarningsandallinstructionsareessentialtothe
properoperationofthewaterheaterandyoursafety.Sincewe
cannotputeverythingontherstfewpages,READ THE ENTIRE
MANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE
THE WATER HEATER.
2.Theinstallationmustconformwiththeseinstructionsandthe
localcodeauthorityhavingjurisdiction.Intheabsenceoflocal
codes,theinstallationmustcomplywiththecurrenteditionsofthe
NationalFuelGasCode,ANSIZ223.1/NFPA54andtheNational
ElectricalCode,NFPA70orCAN/CSA-B149.1,theNaturalGasand
PropaneInstallationCodeandCSAC22.1,theCanadianElectrical
Code.AlldocumentsareavailablefromtheCanadianStandards
Association, 8501 East Pleasant Valley Road, Cleveland, OH 44131.
NFPAdocumentsarealsoavailablefromtheNationalFireProtection
Association,1BatterymarchPark,Quincy,MA02269.
3. Thewaterheaterwheninstalledmustbegroundedinaccordance
with the local codes, or in the absence of local codes: the National
ElectricalCode(NFPA70)ortheCanadianElectricalCode(C22.1).
4.Ifafterreadingthismanualyouhaveanyquestionsordonot
understandanyportionoftheinstructions,callthelocalgasutility
orthemanufacturerwhosenameappearsontheratingplate.
5.Carefullyplantheplacewhereyouaregoingtoputthewater
heater.Correctcombustion,ventaction,andventpipeinstallation
areveryimportantinpreventingdeathfrompossiblecarbon
monoxidepoisoningandres,seeFigures1and2.
Examinethelocationtoensurethewaterheatercomplieswith
the“FactstoConsiderAboutLocation”sectioninthismanual.
6.ForCaliforniainstallationthiswaterheatermustbebraced,
anchored,or strappedtoavoidfallingormovingduringan
earthquake.Seeinstructionsforcorrectinstallationprocedures.
InstructionsmaybeobtainedfromCaliforniaOfceoftheState
Architect,400PStreet,Sacramento,CA95814.
7. Massachusetts Code requires this water heater to be installed in
accordancewithMassachusetts248-CMR2.00:StatePlumbing
Codeand248-CMR5.00,Seepage8.
8.ComplieswithSCAQMDrule#1146anddistrictshavingequivalent
NOxrequirements.
INTRODUCTION
TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE............................2
GENERAL SAFETY..................................................................3
TABLE OF CONTENTS ............................................................5
INTRODUCTION ......................................................................5
PreparingfortheInstallation .............................................5
Get to Know Your Water Heater ........................................6
INSTALLATION CONSIDERATIONS .......................................7
RoughInDimensions........................................................7
CommonwealthofMassachusetts ....................................8
WaterPiping-MixingValveUsage ...................................9
Facts to Consider About Location ...................................10
InsulationBlankets ..........................................................11
CombustionAirandVentilation .......................................11
AppliancesinUnconnedSpaces ...........................11
AppliancesinConnedSpaces ..............................11
INSTALLING THE WATER HEATER ..................................... 13
ChemicalVaporCorrosion ..............................................13
WaterPiping ...................................................................13
Temperature-PressureReliefValve ................................14
GasPiping ......................................................................15
SedimentTraps ...............................................................16
FillingtheWaterHeater ..................................................16
Venting ............................................................................16
VentPipeTermination ............................................... 16-17
PlanningtheVentSystem ...............................................19
Condensate.....................................................................19
InstallationofVentSystem..............................................20
VentTerminalInstallation,Sidewall .................................20
SequenceofInstallations,Figure18A ............................20
DirectVenting..................................................................20
DirectVentTerminalInstallation ......................................20
Installation Sequence......................................................21
VerticalVentTerminalInstallation ...................................21
InstallationofVentSystem,Sidewall ..............................22
InstallationofVerticalVentSystem .................................22
VentPipePreparation .....................................................26
Controls and Switches ....................................................28
PowerVentWiringSchematic.........................................29
LIGHTING & OPERATING LABEL .........................................30
TEMPERATURE REGULATION ............................................31
USING THE ELECTRONIC CONTROLLER ..........................32
FOR YOUR INFORMATION ...................................................36
StartUpConditions
Smoke/Odor ............................................................36
ThermalExpansion .................................................36
StrangeSounds ......................................................36
OperationalConditions ...................................................36
SmellyWater ...........................................................36
“Air”inHotWaterFaucets .......................................36
PERIODIC MAINTENANCE ...................................................37
VentingSystemInspection..............................................37
BurnerOperationandInspection ....................................37
BurnerCleaning ..............................................................37
Housekeeping .................................................................37
AnodeRodInspection.....................................................38
Temperature-PressureReliefValveOperation ...............38
Draining...........................................................................38
Service ............................................................................39
LEAKAGE CHECKPOINTS ....................................................39
TROUBLESHOOTING ...........................................................40
NOTES ............................................................................. 41-42
WARRANTY ...........................................................................43
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