State Water Heaters Power Direct Vented Gas models User manual

Instruction Manual
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
POWER DIRECT VENTED GAS MODELS
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS
PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER.
RESIDENTIAL GAS WATER HEATERS
• For Your Safety •
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
GAMA certification applies
to all residential gas water
heaters with capacities of 20
to 100 gallons with input rating
of 75,000 BTU/Hr. or less.
PRINTED 1007 185885-001

2
SAFE INSTALLATION, USE, AND SERVICE
Your safety and the safety of others is extremely important in the installation, use, and servicing of this water heater.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and
others of a potential hazard. Read and obey all safety messages and instructions throughout this manual. It is very important that
the meaning of each safety message is understood by you and others who install, use, or service this water heater.
All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message and
how to avoid the risk of injury.
The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances
known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires businesses to warn of
potential exposure to such substances.
This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. This
appliance can cause low level exposure to some of the substances listed, including formaldehyde, carbon monoxide and soot.
IMPORTANT DEFINITIONS
• Qualied Installer: Aqualiedinstallermusthaveabilityequivalenttoalicensedtradesmanintheeldsofplumbing,air
supply,venting,andgassupply,includingathoroughunderstandingoftherequirementsoftheNationalFuelGasCodeasit
relatestotheinstallationofgasredwaterheaters.Thequaliedinstallermustalsobefamiliarwiththedesignfeaturesand
useofammablevaporignitionresistantwaterheaters,andhaveathoroughunderstandingofthisinstructionmanual.
• Service Agency: Aserviceagencyalsomusthaveabilityequivalenttoalicensedtradesmanintheeldsofplumbing,
air supply, venting, and gas supply, including a thorough understanding of the requirements of the National Fuel
GasCodeasitrelatestotheinstallationofgasredwaterheaters.Theserviceagencymustalsohaveathorough
understandingofthisinstructionmanual,andbeabletoperformrepairsstrictlyinaccordancewiththeserviceguidelines
providedbythemanufacturer.
• Gas Supplier: TheNaturalGasorPropane Utility or service who supplies gas for utilization by the gas burning
applianceswithinthisapplication.Thegassuppliertypicallyhasresponsibilityfortheinspectionandcodeapprovalof
gaspipinguptoandincludingtheNaturalGasmeterorPropanestoragetankofabuilding.Manygassuppliersalso
offerserviceandinspectionofapplianceswithinthebuilding.

3
GENERAL SAFETY

4
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
Thisgas-redwaterheaterisdesigncertiedbyCSAInternational
underAmerican National Standard/CSA Standard for Gas Water
HeatersANSIZ21.10.1•CSA4.1(currentedition).
PREPARING FOR THE INSTALLATION
1. Readthe“GeneralSafety”section,page3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.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,
installationsshallcomplywiththeNationalFuelGasCodeANSI
Z223.1/NFPA 54 and the National Electrical Code, NFPA 70.
Thesepublicationsare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. ANSI/NFPA 70.
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 your placement of 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“LocatingtheNewWaterHeater”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.Formoreinformationseenextpage.
8.ComplieswithSCAQMDrule#1121anddistrictshavingequivalent
NOxrequirements.
INTRODUCTION
TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE.................................. 2
GENERAL SAFETY........................................................................ 3
TABLE OF CONTENTS.................................................................. 4
INTRODUCTION............................................................................ 4
Preparing for the New Installation............................................... 4
INSTALLATIONREQUIREMENTSFORTHE
COMMONWEALTH OF MASSACHUSETTS ................................. 5
TYPICAL INSTALLATION............................................................... 6
MIXING VALVE USAGE ................................................................. 7
LOCATING THE NEW WATER HEATER.................................. 8-11
 FactstoConsiderAboutLocation............................................ 8-9
 CombustionAirandExhaustTerminationClearances........... 9-10
Wire Fence ............................................................................... 10
 AirforVentilationforAppliancesLocatedinConnedSpaces.... 10
 InsulationBlankets............................................................... 10-11
INSTALLING THE NEW WATER HEATER ............................. 12-22
Water Piping ........................................................................ 12-13
 Temperature-PressureReliefValve .......................................... 13
Gas Piping ................................................................................ 14
 SedimentTraps......................................................................... 15
Filling the Water Heater ............................................................ 15
 BlowerAssemblyInstallation .................................................... 15
 VentConnectionstoBlowerAssembly ..................................... 16
Venting and Installation........................................................ 16-17
Venting Through an Outside Wall ........................................ 17-18
 VentingSystemExampleInstallationforAllModels................. 18
Vent Pipe Separation ................................................................ 18
Cutting Openings Through an Outside
Wall and Collar Installation .................................................. 18-19
Installation Showing Use of PVC, ABS or CPVC Pipe
for Inlet and Outlet Vent Piping ................................................. 19
Connecting Vent to Blower ....................................................... 19
 InstallationShowingUseof(optional)
 DeluxeHorizontalVentKit ................................................... 19-20
Venting Through a Roof............................................................ 20
Vent Pipe Preparation.......................................................... 20-22
LIGHTING & OPERATING LABEL ............................................... 23
TEMPERATURE REGULATION .................................................. 24
FOR YOUR INFORMATION......................................................... 25
Start Up Conditions................................................................... 25
Operational Conditions ............................................................. 25
PERIODIC MAINTENANCE .................................................... 26-28
 VentingSystemInspection ....................................................... 26
Burner Operation and Inspection.............................................. 26
Burner Cleaning........................................................................ 26
 Housekeeping........................................................................... 26
Anode Rod................................................................................ 27
 Temperature-PressureReliefValveOperation ......................... 27
Draining ............................................................................... 27-28
 DrainValveWasherReplacement............................................ 28
 Service...................................................................................... 28
LEAKAGECHECKPOINTS.......................................................... 29
REPAIR PARTS LIST ................................................................... 30
TROUBLESHOOTING GUIDELINES...................................... 31-33
WARRANTY ............................................................................ 34-35

5
Forallsidewallterminated,horizontallyventedpowervent,directvent,andpowerdirectventgasfueledwaterheatersinstalled
ineverydwelling,buildingorstructureusedinwholeorinpartforresidentialpurposes,includingthoseownedoroperatedby
theCommonwealthandwherethesidewallexhaustventterminationislessthanseven(7)feetabovenishedgradeinthe
areaoftheventing,includingbutnotlimitedtodecksandporches,thefollowingrequirementsshallbesatised:
INSTALLATION OF CARBON MONOXIDE DETECTORSAtthetimeofinstallationofthesidewallhorizontalventedgas
fueledequipment,theinstallingplumberorgasttershallobservethatahardwiredcarbonmonoxidedetectorwithanalarm
andbatteryback-upisinstalledontheoorlevelwherethegasequipmentistobeinstalled.Inaddition,theinstallingplumber
orgasttershallobservethatabatteryoperatedorhardwiredcarbonmonoxidedetectorwithanalarmisinstalledoneach
additionallevelofthedwelling,buildingorstructureservedbythesidewallhorizontalventedgasfueledequipment.Itshall
betheresponsibilityofthepropertyownertosecuretheservicesofqualiedlicensedprofessionalsfortheinstallationofhard
wiredcarbonmonoxidedetectors.
Intheeventthatthesidewallhorizontallyventedgasfueledequipmentisinstalledinacrawlspaceoranattic,thehardwired
carbonmonoxidedetectorwithalarmandbatteryback-upmaybeinstalledonthenextadjacentoorlevel.
Intheeventthattherequirementsofthissubdivisioncannotbemetatthetimeofcompletionofinstallation,theownershall
haveaperiodofthirty(30)daystocomplywiththeaboverequirementsprovidedthatduringsaidthirty(30)dayperiod,abat-
teryoperatedcarbonmonoxidedetectorwithanalarmshallbeinstalled.
APPROVED CARBON MONOXIDE DETECTORSEachcarbonmonoxidedetectorasrequiredinaccordancewiththeabove
provisionsshallcomplywithNFPA720andbeANSI/UL2034listedandCSAcertied.
SIGNAGE Ametalorplasticidenticationplateshallbepermanentlymountedtotheexteriorofthebuildingataminimumheight
ofeight(8)feetabovegradedirectlyinlinewiththeexhaustventterminalforthehorizontallyventedgasfueledheatingappli-
anceorequipment.Thesignshallread,inprintsizenolessthanone-half(1/2)inchinsize,“GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS.”
INSPECTION Thestateorlocalgasinspectorofthesidewallhorizontallyventedgasfueledequipmentshallnotapprovethe
installationunless,uponinspection,theinspectorobservescarbonmonoxidedetectorsandsignageinstalledinaccordance
withtheprovisionsof248CMR5.08(2)(a)1through4.
EXEMPTIONS:Thefollowingequipmentisexemptfrom248CMR5.08(2)(a)1through4:
1.TheequipmentlistedinChapter10entitled“EquipmentNotRequiredToBeVented”inthemostcurrenteditionofNFPA54
asadoptedbytheBoard;and
2.ProductApprovedside wallhorizontallyvented gasfueledequipment installedinaroomorstructureseparatefromthe
dwelling,building,orstructureusedinwholeorinpartforresidentialpurposes.
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDEDWhenthemanufacturerofProduct
Approvedsidewallhorizontallyventedgasequipmentprovidesaventingsystemdesignorventingsystemcomponentswith
theequipment,theinstructionsprovidedbythemanufacturerforinstallationoftheequipmentandtheventingsystemshall
include:
1.Detailedinstructionsfortheinstallationoftheventingsystemdesignortheventingsystemcomponents;and
2.Acompletepartslistfortheventingsystemdesignorventingsystem.
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDEDWhenthemanufacturerof
aProductApprovedsidewallhorizontallyventedgasfueledequipmentdoesnotprovidethepartsforventingtheuegases,
butidenties“specialventingsystems,”thefollowingrequirementsshallbesatisedbythemanufacturer:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
instructions;and
2.The“specialventingsystems”shallbeProductApprovedbytheBoard,andtheinstructionsforthatsystemshallincludea
parts list and detailed installation instructions.
AcopyofallinstallationinstructionsforallProductApprovedsidewallhorizontallyventedgasfueledequipment,allventing
instructions,allparts lists forventinginstructions, and/or allventingdesign instructions shallremain with the applianceor
equipmentatthecompletionoftheinstallation.
INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS

6
TYPICAL INSTALLATION
GET TO KNOW YOUR WATER HEATER - GAS MODELS
A Vent Pipe–Exhaust
B Vent Terminal–Exhaust
C Intake or Combustion Air Pipe
D Intake or Combustion Air Terminal
E Vent Adapter
F Blower Assembly
G Cold Water Inlet
H Inlet Water Shut-off Valve
I Union
FIGURE 1.
J Inlet Dip Tube
K Anode**
L Hot Water Outlet
M Outlet Receptacle (115 VAC)
N Temperature-Pressure Relief Valve
O Flue
P Flue Bafe Assembly**
Q Insulation
R Rating Plate
S Gas Supply
T Manual Gas Shut-off Valve
U Ground Joint Union
V Drip Leg (Sediment Trap)
W Drain Valve
X Gas Control Valve
Y Drain Pan
Z Inner Door
AA Outer Door
BB HSI Burner Assembly***
CC FV Sensor Assembly
*CAUTION: 115 VAC
CONTROL HARNESS
INSIDE OUTER JACKET
* ALL PIPING MATERIALS TO BE SUPPLIED BY CUSTOMERS.
** LOCATED UNDER THE BLOWER ASSEMBLY.
*** NOT PICTURED
TYPICAL HOT SURFACE IGNITER & MAIN BURNER
HOT
SURFACE
IGNITER
FLAME
SENSOR
TEMPERATURE INDICATORS
TEMPERATURE ADJUSTMENT BUTTONS

7
MIXING VALVE USAGE
FIGURE 2.
ThisappliancehasbeendesigncertiedascomplyingwithAmerican
National Standard/CSA Standard for water heaters and is considered
suitablefor:
Water (Potable) Heating and Space Heating:All models are
consideredsuitableforwater(potable)heatingandspaceheating.
HOTTERWATERCANSCALD:
Water heaters are intended to produce hot water. Water heated to a
temperaturewhichwillsatisfyspaceheating,clotheswashing,dish
washing,andothersanitizingneedscanscaldandpermanentlyinjure
youuponcontact.Somepeoplearemorelikelytobepermanently
injuredbyhotwaterthanothers.Theseincludetheelderly,children,
theinrm,orphysically/mentallydisabled.Ifanyoneusinghotwater
inyourhometsintooneofthesegroupsorifthereisalocalcodeor
statelawrequiringacertaintemperaturewateratthehotwatertap,
thenyoumusttakespecialprecautions.Inadditiontousingthelowest
possibletemperaturesettingthatsatisesyourhotwaterneeds,a
meanssuch asa *MixingValve,should beused atthe hotwater
tapsusedbythesepeopleoratthewaterheater.Mixingvalvesare
availableatplumbingsupplyorhardwarestores.ConsultaQualied
Installer or ServiceAgency.  Follow mixing valve manufacturer’s
instructionsforinstallationofthevalves.Beforechangingthefactory
settingonthethermostat,readthe“TemperatureRegulation”section
inthismanual,seeFigure31.
SUGGESTED PIPING ARRANGEMENT FOR TOP CONNECTIONS

8
FACTS TO CONSIDER ABOUT THE LOCATION
Carefullychooseanindoorlocationforthenewwaterheater,because
theplacementisaveryimportantconsiderationforthesafetyofthe
occupantsinthebuildingandforthemosteconomicaluseofthe
appliance. This water heater is not for use in manufactured
(mobile) homes or outdoor installation.
Whether replacing an old water heater or putting the water heater in
anewlocation,thefollowingcriticalpointsmustbeobserved:
1. Selectalocationindoorsascloseaspracticaltotheventterminalor
locationtowhichthewaterheaterventpipingisgoingtobeconnected,
andascentralizedwiththewaterpipingsystemaspossible.
2.Selectedlocationmustprovideadequateclearancesforservicing
and proper operation of the water heater.
Installation of the water heater must be accomplished in such a
mannerthatifthetankoranyconnectionsshouldleak,theowwillnot
causedamagetothestructure.Forthisreason,itisnotadvisableto
installthewaterheaterinanatticorupperoor.Whensuchlocations
cannotbeavoided,asuitabledrainpanshouldbeinstalledunderthe
waterheater.Drainpansareavailableatyourlocalhardwarestore.
Suchadrainpanmusthaveaminimumlengthandwidthofatleast
2”(5.1cm)greaterthatthewaterheaterdimensionsandmustbe
pipedtoanadequatedrain.Drainpandepthmustallowforaccess
totheouterdoorsforservicingtheignitorandburner.
Waterheaterlifedependsuponwaterquality,waterpressureandthe
environmentinwhichthewaterheaterisinstalled.Waterheatersare
sometimesinstalledinlocationswhereleakagemayresultinproperty
damage,evenwiththeuseofadrainpanpipedtoadrain.However,
unanticipateddamagecanbereducedorpreventedbyaleakdetector
orwatershut-offdeviceusedinconjunctionwithapipeddrainpan.
Thesedevicesareavailablefromsomeplumbingsupplywholesalers
andretailers,anddetectandreacttoleakageinvariousways:
• Sensorsmountedinthedrainpanthattriggeranalarmorturnoffthe
incomingwatertothewaterheaterwhenleakageisdetected.
• Sensorsmountedinthedrainpanthatturnoffthewatersupplyto
theentirehomewhenwaterisdetectedinthedrainpan.
• Watersupply shut-offdevices thatactivate basedonthe water
pressuredifferentialbetweenthecoldwaterandhotwaterpipes
connected to the water heater.
• Devicesthatwillturnoffthegassupplytoagaswaterheaterwhile
atthesametimeshuttingoffitswatersupply.
INSTALLATIONS INAREAS WHERE FLAMMABLE LIQUIDS
(VAPORS)ARELIKELYTOBEPRESENTORSTORED(GARAGES,
STORAGEANDUTILITYAREAS,ETC.):Flammableliquids(suchas
gasoline,solvents,propane(LPorbutane,etc.)andothersubstances
(suchasadhesives,etc.)emitammablevaporswhichcanbeignited
LOCATING THE NEW WATER HEATER
byagaswaterheater’shotsurfaceigniterormainburner.Theresulting
ashbackandrecancausedeathorseriousburnstoanyoneinthearea
andpropertydamage.Thiswaterheaterisequippedwitha FVsensor
fordetectingthepresenceofammablevapors,seeFigure3.Whenthe
sensor detects those vapors, the unit will shut down and not operate.
Shouldthishappen,pleaserefertotroubleshootingguideinthismanual.
Eventhough this waterheater isa ammable vaporsignition resistant
waterheaterandisdesignedtoreducethechancesofammablevapors
beingignited,gasolineandotherammablesubstancesshouldnever
bestoredorusedinthesamevicinityorareacontainingagaswater
heaterorotheropenameorsparkproducingappliance.
FIGURE 3.
Also,thewaterheatermustbelocatedand/orprotectedsoitisnot
subjecttophysicaldamagebyamovingvehicle.
This water heater must not be installed directly on carpeting.
Carpetingmustbeprotectedbymetalorwoodpanelbeneaththe
applianceextendingbeyondthefullwidthanddepthoftheappliance
byatleast3”(7.6cm)inanydirection,oriftheapplianceisinstalled
inanalcoveorcloset,theentireoormustbecoveredbythepanel.
Failuretoheedthiswarningmayresultinarehazard.

9
Minimum clearances between the water heater and combustible
constructionare0inchatthesidesandrear,6”(15.2cm)fromthe
frontofthejacket,and12”(30.5cm)fromthetop(standardclearance).
Ifclearancesstatedontheheaterdifferfromstandardclearances,
install water heater according to clearances stated on the heater.
Adequateclearanceforservicingthisapplianceshouldbeconsidered
beforeinstallation,suchaschangingtheanodes,etc.
Aminimumclearanceof5”(12.7cm)fromthefrontofthejacketmust
beallowedforaccesstoreplaceablepartssuchasthethermostats,
drainvalveandreliefvalve.Provide24”(61cm)frontclearancefor
servicingandadequateclearancebetweenthejackettopandceiling
forservicingtheuearea.
Wheninstallingtheheater,considerationmustbegiventoproper
location. Location selected should be as close to the wall as
practicable and as centralized with the water piping system as
possible.
FIGURE 4.
Donotinstallinaconnedareasuchasacloset,unlessyouprovide
ventilationairas showninthe "LocatingThe NewWaterHeater"
sectionandFigure5.Neverobstructtheowofventilationair.Ifyou
haveanydoubtsorquestionsatall,callyourgascompany.Failureto
provideventilationaircanresultinareorexplosionandcancause
DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE.
FIGURE 5.
If this water heater will be used in beauty shops, barber shops,
cleaningestablishments,orself-servicelaundrieswithdrycleaning
equipment,itisimperativethatthewaterheaterorwaterheaters
beinstalled sothat combustionand ventilationair betaken from
outside these areas.
Propellantsofaerosol spraysandvolatile compounds,(cleaners,
chlorine based chemicals, refrigerants, etc.) in addition to being
highlyammableinmanycases,willalsoreacttoformcorrosive
hydrochloric acid when exposed to the combustion products of
thewaterheater.The resultscan behazardous,and alsocause
product failure.
COMBUSTION AIR AND EXHAUST TERMINATION
CLEARANCES
Venting Through an Outside Wall - Clearances, see Figure 7.
• 0"clearancefor3"PVC,ABS,orCPVCSchedule40pipingfrom
combustiblesurfaces.
• Thelocationselectionmustprovideclearancesforservicingand
proper operation of the water heater, see Figure 8.
FIGURE 6.
• Theventingsystemmustbeinstalledinamannerwhichallows
inspectionoftheinstallationoftheventingpipesandjointsas
wellasperiodicinspectionafterinstallationasrequiredbythe
National Fuel Gas Code ANSI Z223.1.

10
FIGURE 7.
VENT TERMINATION CLEARANCES
WIRE FENCE
Whenthewaterheateroutletterminalislowenoughtobetouched
accidentally,orisaccessibletosmallchildren,awiremeshchain
linkfence(asshowninFigure8)maybeused.Careshouldbe
takentomaintainadequateventilationaroundtheoutletterminal.
Ifachainlinkfenceisinstalled,itmustnotbeusedasastorage
areaforitemsthatmayblockproperventilation.
FIGURE 8.
Venting Through Roof - Clearances
• 0"clearancefor3"PVC,ABS,orCPVCSchedule40pipingfrom
combustibleandnoncombustiblesurfaces.
• Theventexhaustoutletandairinletterminalsshallterminateat
least18"(45.7cm)abovetheroofsurface,seeFigure9.
FIGURE 9.
AIR FOR VENTILATION FOR APPLIANCES LOCATED IN
CONFINED SPACES
Airforventilationshouldbeprovidedifinstalledinaconnedspace.
Refer to the National Fuel Gas Code, ANSI Z223.1.
INSULATION BLANKETS
Insulationblanketsareavailabletothegeneralpublicforexternal
useongaswaterheatersbutarenotnecessarywiththeseproducts.
Thepurposeofaninsulationblanketistoreducethestandbyheat
loss encountered with storage tank heaters. Your water heater
meetsorexceedstheNationalApplianceEnergyConversationAct
standardswithrespecttoinsulationandstandbylossrequirements,
makinganinsulationblanketunnecessary.

11
Shouldyouchoosetoapplyaninsulationblankettothisheater,you
should follow these instructions (For identication of components
mentionedbelow,seeFigure1).Failuretofollowtheseinstructions
canrestrict theair owrequired forproper combustion,potentially
resultinginre,asphyxiation,seriouspersonalinjury,ordeath.
•Do notapplyinsulationtothetopofthewaterheater,asthiswill
interfere with safe operation of the water heater.
•Do notcovertheouterdoor,thermostat,temperature&pressure
reliefvalveorFVSensor.
•Do not let insulation around the gas water heater get within 8 inches
oftheoor(accessforservicingtheburner).
•Do not cover the instruction manual.  Keep it on the side of the
waterheaterornearbyforfuturereference.
•Doobtainnewwarningandinstructionlabelsfromthemanufacturer
forplacementontheblanketdirectlyovertheexistinglabels.
•Do inspect the insulation blanket frequently to make certain it
doesnotsag,therebyobstructingaccesstoburner.

12
THERMAL EXPANSION
Aswaterisheated,itexpands(thermalexpansion).Inaclosed
systemthevolumeofwaterwillgrowwhenit isheated.Asthe
volumeofwatergrowstherewillbeacorrespondingincreasein
waterpressureduetothermalexpansion.Thermalexpansioncan
causeprematuretankfailure(leakage).Thistypeoffailureisnot
coveredunderthelimitedwarranty.Thermalexpansioncanalso
cause intermittent temperature-pressure relief valve operation:
waterdischargedfromthevalveduetoexcessivepressurebuild
up.Thisconditionisnotcoveredunderthelimitedwarranty.The
temperature-pressurereliefvalveisnotintendedfortheconstant
reliefofthermalexpansion.
A properly sized thermal expansion tank should be installed
on all closed systems to control the harmful effects of thermal
expansion. Contact a local plumbing service agency to have a
thermalexpansiontankinstalled.
NOTE: To protect against untimely corrosion of hot and cold
water ttings, it is strongly recommended that dielectric unions
or couplings be installed on this water heater when connected
to copper pipe.
Allgaspipingmustcomplywithlocalcodesandordinancesorwiththe
NationalFuelGasCode(ANSIZ223.1/NFPA-54)whicheverapplies.
Copperandbrasstubingandttings(excepttinlinedcoppertubing)
shallnotbeused.
FIGURE 10.
Figure 10 shows the typical attachment of the water piping to the
water heater. The water heater is equipped with 3/4 inch NPT water
connections.
WATER PIPING
HOTTERWATERCANSCALD:
Water heaters are intended to produce hot water. Water heated to
a temperature which will satisfy space heating, clothes washing,
dish washing, cleaning and other sanitizing needs can scald and
permanentlyinjureyouuponcontact.Somepeoplearemorelikelyto
bepermanentlyinjuredbyhotwaterthanothers.Theseincludethe
elderly,children,theinrm,orphysically/mentallydisabled.Ifanyone
usinghotwaterinyourhometsintooneofthesegroupsorifthere
isalocalcodeorstatelawrequiringacertaintemperaturewaterat
thehotwatertap,thenyoumusttakespecialprecautions.Inaddition
tousingthelowestpossibletemperaturesettingthatsatisesyour
hotwaterneeds,ameanssuchasamixingvalveshouldbeusedat
thehotwatertapsusedbythesepeopleoratthewaterheater,see
Figure2.Valvesforreducingpointofusetemperaturebymixingcold
andhotwaterarealsoavailable.
ConsultaQualiedInstallerorServiceAgency.Followmanufacturer’s
instructionsforinstallationofthevalves.Beforechangingthefactory
settingonthethermostat,readthe“TemperatureRegulation”section
inthismanual.
Thiswaterheatershallnotbeconnectedtoanyheatingsystemsor
component(s)usedwithanon-potablewaterheatingappliance.
All piping components connected to this unit for space heating
applicationsshallbesuitableforusewithpotablewater.
Toxicchemicals,suchasthoseusedforboilertreatmentshallnotbe
introducedintothissystem.
Whenthesystemrequireswaterforspaceheatingattemperatures
higherthanrequiredfordomesticwaterpurposes,atemperingvalve
must be installed.  Please refer to Figure 2 for suggested piping
arrangement.
Watersupplysystemsmay,becauseofcoderequirementsorsuch
conditions as high line pressure, among others, have installed
devicessuchaspressurereducingvalves,checkvalves,andback
owpreventers.Devicessuchasthesecausethewatersystemto
beaclosedsystem.
INSTALLING THE NEW WATER HEATER

13
NOTE: If using copper tubing, solder tubing to an adapter before
attaching the adapter to the cold water inlet connection. Do not
solder the cold water supply line directly to the cold water inlet.
It will harm the dip tube and damage the tank.
T & P Valve and Pipe Insulation (if supplied)
RemoveinsulationforT&Pvalveandpipeconnectionsfromcarton.
FIGURE 11.
Fitpipeinsulationovertheincomingcoldwaterlineandthehotwater
line.Makesurethattheinsulationisagainstthetopcoveroftheheater.
FitT&Pvalveinsulationovervalve.Makesurethattheinsulation
doesnotinterferewiththeleveroftheT&Pvalve.
Secure all insulation using tape.
TEMPERATURE-PRESSURE RELIEF VALVE
This heater is provided with a properly certified combination
temperature-pressurereliefvalvebythemanufacturer.
The valve is certied by a nationally recognized testing laboratory
thatmaintainsperiodicinspectionofproductionoflistedequipmentof
materialsasmeetingtherequirementsforReliefValvesforHotWater
SupplySystems,ANSIZ21.22•CSA4.4,andthecoderequirements
of ASME.
Ifreplaced,thevalvemustmeettherequirementsoflocalcodes,but
notless thana combinationtemperature andpressure reliefvalve
certiedasindicatedintheaboveparagraph.
The valve must be marked with a maximum set pressure not to
exceedthemarkedhydrostaticworkingpressureofthewaterheater
(150psi=1,035kPa)andadischargecapacitynotlessthanthewater
heaterinputrateasshownonthemodelratingplate.
Forsafeoperationofthewaterheater,thereliefvalvemustnotbe
removedfromitsdesignatedopeningnorplugged.
Thetemperature-pressurereliefvalvemustbeinstalleddirectlyinto
thettingofthewaterheaterdesignedforthereliefvalve.Positionthe
valvedownwardandprovidetubingsothatanydischargewillexitonly
within6inches(15.2cm)aboveanadequatedrainoroutsideofthe
buildingorstructure.Becertainthatnocontactismadewithanylive
electricalpart.Thedischargeopeningmustnotbeblockedorreduced
insizeunderanycircumstances.Excessivelength,over30feet(9.14
m),oruseofmorethanfourelbowscancauserestrictionandreduce
thedischargecapacityofthevalve,seeFigures10or14.
Novalveorotherobstructionistobeplacedbetweenthereliefvalve
andthetank.Donotconnecttubingdirectlytodischargedrainunless
a6”(15.2cm)airgapisprovided.Topreventbodilyinjury,hazardto
life,orpropertydamage,thereliefvalvemustbeallowedtodischarge
waterinquantitiesshould circumstancesdemand.Ifthedischarge
pipeisnotconnectedtoadrainorothersuitablemeans,thewater
owmaycausepropertydamage.
TheDischargePipe:
•Shallnotbesmallerinsizethantheoutletpipesizeofthevalve,or
haveanyreducingcouplingsorotherrestrictions.
•Shallnotbepluggedorblocked.
•Shallbeofmateriallistedforhotwaterdistribution.
•Shallbe installedso as toallow completedrainageof boththe
temperature-pressurereliefvalve,andthedischargepipe.
•Shallterminateatanadequatedrain.
•Shallnothaveanyvalvebetweenthereliefvalveandtank.
Thetemperature-pressurereliefvalvemustbemanuallyoperatedat
leastonceayear.Cautionshouldbetakentoensurethat(1)noone
isinfrontoforaroundtheoutletofthetemperature-pressurerelief
valvedischargeline,and(2)thewatermanuallydischargedwillnot
causeanybodilyinjuryorpropertydamagebecausethewatermay
beextremelyhot.
Ifaftermanuallyoperatingthevalve,itfailstocompletelyresetand
continues to release water, immediately close the cold water inlet
to the water heater, follow the draining instructions, and replace the
temperature-pressurereliefvalvewithanewone.

14
GAS PIPING
Makesurethegassuppliedisthesametypelistedonthemodel
ratingplate.Theinletgaspressuremustnotexceed10.5inchwater
column(2.6kPa)fornaturaland13inchwatercolumn(3.2kPa)for
propanegas(L.P.).Theminimuminletgaspressureshownonthe
ratingplateisthatwhichwillpermitringatratedinput.
Allgaspipingmustcomplywithlocalcodesandordinancesorwith
the National Fuel Gas Code (ANSI Z223.1/ NFPA-54) whichever
applies.Copperandbrasstubingandttings(excepttinlinedcopper
tubing)shallnotbeused.
Ifthegascontrolvalveissubjectedtopressuresexceeding1/2psi
(14inchesofwatercolumnor3.5kPa),thedamagetothegascontrol
valvecouldresultinareorexplosionfromleakinggas.
IfthemaingaslineShut-offservingallgasappliancesisused,also
turn“off”thegasateachappliance.Leaveallgasappliancesshut
“off”untilthewaterheaterinstallationiscomplete.
Agaslineofsufcientsizemustberuntothewaterheater.Consult
the current edition of National Fuel Gas Code ANSI Z223.1/NFPA
54andyourgassupplierconcerningpipesize.
Theremustbe:
• Areadilyaccessiblemanualshutoffvalveinthegassupplyline
servingthewaterheater,and
• Adripleg(sedimenttrap)aheadofthegascontrolvalvetohelp
preventdirtandforeignmaterialsfromenteringthegas control
valve.
• Aexiblegasconnectororagroundjointunionbetweentheshut
offvalveandthegascontrolvalvetopermitservicingoftheunit.
Besuretocheckallthegaspipingforleaksbeforelightingthewater
heater. Use asoapywater solution,not amatchor opename.
Rinseoffsoapysolutionandwipedry.
Wheninstalledatelevationsabove7,700feet(2,347meters),input
ratingshouldbereducedattherateof4percentforeach1,000feet
(305 meters)abovesealevelwhichrequires replacementofthe
burner orice in accordance with The National Fuel Gas Code
ANSIZ223.1/NFPA54.Contactyourlocalgassupplierforfurther
information.
Failuretoreplacethestandardoricewithahighaltitudeoricewhen
installed could result in improper and inefcient operation of the
appliance,producingcarbonmonoxidegasinexcessofsafelimits,
whichcouldresultinseriousinjuryordeath.Contactyourgassupplier
foranyspecicchangeswhichmayberequiredinyourarea.
UsepipejointcompoundorTeontapemarkedasbeingresistant
totheactionofpetroleum[Propane(L.P.)]gases.
Theapplianceanditsgasconnectionmustbeleaktestedbefore
placing the appliance in operation.
TheapplianceanditsindividualShut-offvalveshallbedisconnected
fromthegassupplypipingsystemduringanypressuretestingof
that system at test pressures in excess of 1/2 psi (14 inches of
watercolumnor3.5kPa).Itshallbeisolatedfromthegassupply
pipingsystembyclosingitsindividualmanualShut-offvalveduring
anypressuretestingofthegassupplypipingsystemattestpressures
equal to or less than 1/2psi(14inchesofwatercolumnor3.5kPa).
Connecting the gas piping to the gas control valve of the water
heatercanbeaccomplishedbyeitherofthetwomethodsshownin
Figures 12 and 13.
FIGURE 12. GAS PIPING WITH
FLEXIBLE CONNECTOR.
FIGURE 13. GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL.

15
SEDIMENT TRAPS
Asedimenttrapshallbeinstalledasclosetotheinletofthewater
heater as practical at the time of water heater installation.The
sedimenttrapshallbeeitherateettingwithacappednippleinthe
bottomoutletorotherdevicerecognizedasaneffectivesediment
trap.Ifateettingisused,itshallbeinstalledinconformancewith
oneofthemethodsofinstallationshowninFigures12and13.
Contaminantsinthegaslinesmaycauseimproperoperationofthegas
controlvalvethatmayresultinreorexplosion.Beforeattachingthe
gaslinebesurethatallgaspipeiscleanontheinside.Totrapanydirt
orforeignmaterialinthegassupplyline,adripleg(sometimescalled
asedimenttrap)mustbeincorporatedinthepiping.Thedriplegmust
bereadilyaccessible.Installinaccordancewiththe“GasPiping”
section. Refer to the current edition of the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
FIGURE 14.
FILLING THE WATER HEATER
Neverusethiswaterheaterunlessitiscompletelyfullofwater.Toprevent
damagetothetank,thetankmustbelledwithwater.Watermustow
fromthehotwaterfaucetbeforeturning“ON”gastothewaterheater.
Tollthewaterheaterwithwater:
1. Close the water heater drain valve by turning the handle to the right
(clockwise).Thedrainvalveisonthelowerfrontofthewaterheater.
2. Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open when
the water heater is in use.
3. Toinsurecompletellingofthetank,allowairtoexitbyopeningthe
nearesthotwaterfaucet.Allowwatertorununtilaconstantowis
obtained.Thiswillletairoutofthewaterheaterandthepiping.
4. Check all water piping and connections for leaks. Repair as
needed.
BLOWER ASSEMBLY INSTALLATION
SEQUENCE OF INSTALLATION
1. This power direct vent water heater comes with the blower
assemblyinstalled.
2 Aftertheunitissetinplace,makesuretheblowerassemblyisstill
mountedsecurely,andmakesurethereisnodamagetotheblower.
3. Makesurethereisnopackingmaterialinthedischargeofthe
blowerortheintake,seeFigure15.
4. Make sure that the rubber tubing is still attached from the air
pressureswitchtotheportontheblowerhousing.Makesure
therubbertubingisnotfoldedanywherebetweenthepressure
switchandtheblowerhousing.
5. MakesuretheON/OFFswitchisintheOFFpositionandthat
thewiringharnessisconnectedfromtheblowercontrolboxto
theconnectoronthebottomsideofthegascontrolvalve.
6. Ifthewiringharnessisnotfactoryinstalled,makesuretheON/
OFF switch is in the OFF position and then connect the wiring
harness from the blower control box to the connector on the
bottomsideofthegascontrolvalve.
7. Thiswaterheaterisapolaritysensitiveapplianceandwillnot
operateifthepowersupplypolarityisreversed.Thepowersupply
or outlet providing power to this water heater must be wired
properly(correctpolarity).
8. Donotpluginpowercorduntilventsystemiscompletelyinstalled.
Thispowerdirectventheateroperateson110-120Vac,therefore
agroundedoutletmustbewithinreachofthesix(6)foot(1.8m)
exiblepowercordsuppliedwiththeunit,seeFigure2.Ensurethe
polarityattheoutletiscorrect.Thepowercordsuppliedmaybe
usedonlywherelocalcodespermit.Iflocalcodesdonotpermit
theuseofaexiblepowersupplycord:
a.)Makesuretheunitisunpluggedfromwalloutlet.Removescrews
andremovecontrolbox.
b.)Cuttheexiblepowercord,leavingenoughtobeabletomake
connections,theremovethestrainreliefttingfrombox.
c.)Installsuitableconduitttinginsideofenclosureandthenfollow
(d.)and(e.)below.
d.)Splice eld wiring into existing wiring using code authorized
method(wirenuts,etc.).
e.)Be certain that neutral and live connections are not reversed
whenmakingtheseconnections.
f.) Replacecontrolbox,makesurethatcontrolboxissecuredshut.

16
VENT CONNECTIONS TO BLOWER ASSEMBLY
Figure15showsthetypicalventconnections.
FIGURE 15.
VENTING AND INSTALLATION
Planthelayoutoftheventsystemfromtheventterminationtothewater
heaterconsideringallofthe90°and45°elbowsplusthenumberoffeet
ofpipethatwouldbeneededtoinstallthetotalventsystem.Thewater
heatermustbeventedtotheoutdoorsasdescribedintheseinstructions.
DONOTconnectthiswaterheatertoanexistingventorchimney.It
mustbeventedseparatelyfromallotherappliances.Thettings,other
thanthesuppliedVentTerminationshouldbeequivalenttothefollowing:
PVC(Schedule40,DWV,ASTMD-2665),CPVC(Schedule40,DWV,
ASTMF-438),ABS(Schedule40DWV,ASTMD-2661).
The cement used should be as recommended by the vent
pipe manufacturer. See the instructions in the “VENT PIPE
PREPARATION” sectionof thismanual for theproper methodof
cuttingandcementingthePVCpipeandttings.
Allvent gasesmust becompletely ventedto theoutdoors ofthe
structure(dwelling).Whendeterminingtheinstallationlocationfor
apowerdirectventwaterheater,snowaccumulationanddrifting
shouldbeconsideredinareaswhereapplicable.

17
FIGURE 16.
Horizontal runs must be securely supported at 3 1/2 foot (1 m)
intervalsandverticalrunssupportedat5foot(1.5m)intervals.
FIGURE 17.
VENTING THROUGH AN OUTSIDE WALL
A. All 75 Gallon Models
Inthecartonissupplied:
1.Two3”inletandoutletPVCSchedule40-45°ventcaps.
2. One3”CPVCSchedule80-90°elbow;usedtoconnecttheoutlet
ventpipetothewaterheaterwhentheoutletventpipeistobe
turnedhorizontallydirectlyofftheblower.
3. One5’(1.5m)sectionof3”CPVCSchedule40outletventpipe.
(Moremayberequiredandmustbepurchasedlocally.)
FIGURE 18.
1. Thewaterheaterrequiresitsown(separate)ventingsystem.
2. Only3”CPVCSchedule40piping andttingsareacceptable
materialsontherstvefeetoftheoutletventsystem.
3. 3” PVC,ABS, or CPVC Schedule 40 piping and ttings are
acceptablematerialsfortheinletventsystemandfortheoutlet
ventsystemaftertherstvefeet.
4. Theunitcannotbeconnectedtoexistingventpipingorchimney.
5. Whenventingthroughanoutsidewall,theventsmustterminate
horizontallytotheoutdoors.
B. All 50 Gallon 65,000 BTU/HR Models
Inthecartonissupplied:
1. Two3”inlet and outletPVCSchedule40-45°ventcaps.
2. One3”ABSSchedule40-90°streetelbow;usedtoconnectthe
outletventpipetothewaterheaterwhentheoutletventpipeis
tobeturnedhorizontallydirectlyofftheblower.
3. One5’(1.5m)sectionof3”ABSSchedule40outletventpipe.
(Moremayberequiredandmustbepurchasedlocally.)
FIGURE 19.
1. Thewaterheaterrequiresitsown(separate)ventingsystem.
2. Only3”CPVCorABSSchedule40pipingandttingsareacceptable
materialsontherstvefeetoftheoutletventsystem.
3. 3” PVC,ABS, or CPVC Schedule 40 piping and ttings are
acceptablematerialsfortheinletventsystemandfortheoutlet
ventsystemaftertherstvefeet.
4. Theunitcannotbeconnectedtoexistingventpipingorchimney.
5. Whenventingthroughanoutsidewall,theventsmustterminate
horizontallytotheoutdoors.

18
C. All 40 and 50 Gallon 40,000 BTU/HR Models
Inthecartonissupplied:
1. Two3”inletandoutletPVCSchedule40-45°ventcaps.
Allotherpipingmustbesuppliedbythesupplier.
FIGURE 20.
* Ifmakinganimmediatehorizontalrunofventofftheblower,two
3”PVCorABSschedule40streetelbowsarerequired.
VENTING SYSTEM EXAMPLE INSTALLATIONS FOR
ALL MODELS
Theventpipingcannotunderanycircumstancesberundownhill.
FIGURE 21.
Correct installation of the vent piping:
1. Horizontalrunsrequireaminimum1/8”(3.2mm)risepervefeet
of length.
FIGURE 22.
2. The total vertical and horizontal vent runs cannot exceed the
maximumlengthwiththenumberof90°elbowsasspeciedin
thetablebelow.Ifmoreelbowsarerequired,theventingdistance
mustbereduced5feet(1.5m)forevery90°elbow:
Thenumberof90°elbowsshowninthetableisforboththeintake
airandventpipes.IE:Theventpipecancontainthree90°elbows,
theintakeairpipecanalsocontainthree90°elbows.
3" DIA. VENTS MAX.
LENGTH (FT.)
NUMBER OF 90°
ELBOWS*
45 1
40 2
35 3
*NOTE:Two45°elbowsareequivalenttoone90°elbow.One90°
elbowequals5feet(1.5m)ofequivalentventlength.
FIGURE 23.
3. Minimumventlengthforallmodelsis18inches(46cm).
VENT PIPE SEPARATION
Theinletandoutletventpipesmustbeseparatedbyaminimum
distance of 6 1/2 inches (16.5 cm) up to 24 inches (61 cm)
maximum.
FIGURE 24.
CUTTING OPENINGS THROUGH AN OUTSIDE WALL
AND COLLAR INSTALLATION
After reading the manual and determining the location for the
opening in the wall, cut one 3 1/2” (9 cm) diameter hole for the
inletventpipingandone31/2”(9cm)diameterholefortheoutlet
ventpipingthroughanexteriorwall,seeFigure25.
Note: When determining the location of the openings in the
outside wall, allow for the 1/8” (3.2 mm) rise per ve feet (1.5
m) of length required in the horizontal run.

19
FIGURE 25.
The 3” PVC,ABS, or CPVC Schedule 40 vent pipe can be run
fromthewaterheaterthroughthewallorfromthewalltothewater
heater,whicheverismostconvenient.Theventpipemustextenda
minimumof11/2”(4cm)throughtheexteriorwall.Extendingthe
vent cap as far as possible from the surface of the exterior wall
willhelpminimizediscolorationofthewall.Notethattheinsideue
mounting adaptors must be slipped over the vent piping before
locating the pipe through the wall. Before securing the inside and
outsidecollarstothewall,useasiliconesealerbetweenpipeand
opening to insure a water and air tight seal.
INSTALLATION SHOWING USE OF PVC, ABS OR
CPVC PIPE FOR INLET AND OUTLET VENT PIPING
Inletpipingthroughanytypewall.
FIGURE 26.
CONNECTING VENT TO BLOWER
1. Ifmakinganimmediatehorizontalrunofventofftheblower,one
3”PVCinletandone3”PVC(CPVCfor75gallonmodelsand
ABSfor50gallon65,000Btu/Hrmodels)outletSchedule40street
elbowsarerequired.Placetheelbowintherequireddirectionon
theblowerandattachtheelbowwith3sheetmetalscrews.
FIGURE 27.
2. Ifthereistobeaverticalrunofventfromtheblower,the3”PVC
inletandthe3”PVC(CPVCfor75gallonmodelsandABSfor
50gallon65,000Btu/Hrmodels)outletpipesmustbeattached
totheblowerandventinghoodusing6sheetmetalscrews.
FIGURE 28.
INSTALLATION SHOWING USE OF (OPTIONAL)
DELUXE HORIZONTAL VENT KIT
Typicalinstallation.
FIGURE 29A.
Optional 3” PVC Horizontal Vent Kit:
FIGURE 29B.

20
Ifthisconcentrictermination,throughthewalltypeofventingsystemis
preferred,theconcentricventkitcanbeorderedfromtheServiceParts
Departmentunderkit#9002749.Installationinstructionsareprovided
withthekit.
VENTING THROUGH A ROOF
Two3”inletandoutletPVCSchedule40-45°ventcapsaresupplied.
A 5’ (1.5 m) section of 3” CPVC Schedule 40 outlet vent pipe is
suppliedwith75gallonmodelsanda5’(1.5m)sectionof3”ABS
Schedule40outletventpipeissuppliedwith50gallon65,000Btu/
Hrmodels.Moremayberequiredandmustbepurchasedlocally.
1. Thewaterheaterrequiresitsown(separate)ventingsystem.
2. Only 3"ABS Schedule 40 piping and ttings are acceptable
materialsontherstvefeetoftheoutletventsystemonthe
50gallon 65,000BTU/HR modelsand 3"CPVCSchedule 40
pipingandSchedule80ttingsareacceptablematerialsonthe
rstvefeetoftheoutletventsystemon75gallonmodels.
3. 3” PVC,ABS, or CPVC Schedule 40 piping and ttings are
acceptablematerialsfortheinletventsystemandfortheoutlet
ventsystemaftertherstvefeet(1.5m).
4. Theunitcannotbeconnectedtoexistingventpipingorchimney.
5. Ventingmustterminateverticallytotheoutdoors.
6. The total vertical and horizontal vent runs cannot exceed the
maximum length with a maximum number of 90° elbows as
specied in the table below. If more elbows are required, the
ventingdistancemustbereduced5feetforevery90°elbow.
Thenumberof90°elbowsshowninthetableisforboththeintake
airandventpipes.IE:Theventpipecancontainthree90°elbows,
theintakeairpipecanalsocontainthree90°elbows.
3" DIA. VENTS MAX.
LENGTH (FT.)
NUMBER OF 90°
ELBOWS*
45 1
40 2
35 3
*NOTE:Two45°elbowsareequivalenttoone90°elbow.One90°
elbowequals5feet(1.5m)ofequivalentventlength.
FIGURE 30.
VENT PIPE PREPARATION
1. INITIAL PREPARATION
 A. Makesurethesolventcementyouareplanningtouseis
designedforthespecicapplicationyouareattempting.
 B. Know the physical and chemical characteristics and
limitationsofthePVC,ABSandCPVCpipingmaterialsthat
youareabouttouse.
 C. Knowthereputationofyourmanufacturerandtheirproducts.
 D. Knowyourownqualicationsorthoseofyourcontractor.The
solventweldingtechniqueofjoiningPVC,ABSandCPVCpipe
isaspecializedskilljustasanyotherpipettingtechnique.
 E. Closelysupervisetheinstallationandinspectthenished
jobbeforestart-up.
 F. Contactthemanufacturer,supplier,orcompetentconsulting
agencyifyouhaveanyquestionsabouttheapplicationor
installation of PVC, ABS and CPVC pipe.
 G. Takethetimeandefforttodoaprofessionaljob.Shortcuts
willonlycauseyouproblemsanddelaysinstart-up.Byfar,
themajorityoffailuresinPVC,ABSandCPVCsystemsare
theresultofshortcutsand/orimproperjoiningtechniques.
2. SELECTION OF MATERIALS
• CuttingDevice-SaworPipeCutter
• DeburringTool,Knife,File,orBevelingMachine(2”[5cm]andabove)
• Brush-PureBristle
• Rag-Cotton(NotSynthetic)
• PrimerandCleaner
• Solvent Cement - PVC for PVC Components and CPVC for
CPVCComponentsandABSforABScomponents.
• Containers-MetalorGlasstoholdPrimerandCement.Select
thetypeofPVC,ABSorCPVCmaterialstobeusedonthebasis
oftheirapplicationwithrespecttochemicalresistance,pressure
rating,temperaturecharacteristics,etc.
• InsertionTool - Helpful for larger diameter pipe and ttings 6
inches(15.2cm)andabove.