State Water Heaters SBS75-76-NE User manual

Brand: State Water Heaters

Model: SBS75-76-NE

Category: Water heaters & boilers

Type: User manual

This manual is also suitable for

Instruction Manual

PRINTED 1115 197659-005

KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE

WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

COMMERCIAL GAS WATER HEATERS

• For Your Safety •

AN ODORANT IS ADDED TO THE GAS USED

BY THIS WATER HEATER.

INSTALLATION - OPERATION

- SERVICE - MAINTENANCE

PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

Read and understand this instruction

manual and the safety messages

herein before installing, operating or

servicing this water heater.

Failure to follow these instructions and

safety messages could result in death

or serious injury.

This manual must remain with the

water heater.

WARNING: If the information in these

instructions is not followed exactly, a fire

or explosion may result causing property

damage, personal injury or death.

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 electrical 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.

•

Low Lead Content

SAFE INSTALLATION, USE AND SERVICE......................3

APPROVALS ...................................................................... 3

GENERAL SAFETY INFORMATION .................................. 4

INTRODUCTION ................................................................ 5

Abbreviations Used ..................................................... 5

 QualiedInstallerorServiceAgency........................... 5

 PreparingfortheNewInstallation ............................... 5

INSTALLATION CONSIDERATIONS ............................. 6-9

 RoughInDimensions .................................................. 6

 Thermometers ............................................................. 7

 FactstoConsiderAboutLocation ............................... 7

 HighAltitude ................................................................ 8

 Clearances .................................................................. 8

Insulation Blankets ...................................................... 9

Hard Water .................................................................. 9

 CirculationPumps ....................................................... 9

INSTALLATION REQUIREMENTS .................................. 10

 GasSupplySystems ................................................. 10

 GasPressureRequirements ..................................... 10

 SupplyGasRegulator ............................................... 10

 MixingValves ............................................................10

 WaterPiping .............................................................. 11

 ClosedWaterSystems .............................................. 11

 ThermalExpansion ................................................... 11

 Temperature-PressureReliefValve ......................... 11

 FillingtheWaterHeater ............................................. 12

 AirRequirements....................................................... 12

 UnconnedSpace ..................................................... 13

 ConnedSpace ......................................................... 13

 FreshAirOpeningsforConnedSpaces .................. 13

 OutdoorAirThroughTwoOpenings .......................... 13

 OutdoorAirThroughOneOpening ........................... 13

OutdoorAirThroughTwoHorizontalDucts ............... 14

 OutdoorAirThroughTwoVerticalDucts ................... 14

 AirFromOtherIndoorSpaces .................................. 14

 Venting ...................................................................... 14

 SupplyGasRegulator ............................................... 15

 GasPiping ................................................................. 16

 SedimentTraps ......................................................... 17

LIGHTING & OPERATING INSTRUCTIONS .............. 18,19

TEMPERATURE REGULATION ...................................... 20

FOR YOUR INFORMATION ............................................. 20

Start Up Conditions ................................................... 20

Operational Conditions .............................................. 21

PERIODIC MAINTENANCE ............................................. 22

 VentingSystemInspection ........................................ 22

 BurnerInspection ...................................................... 22

 BurnerCleaning ........................................................ 22

 Housekeeping ........................................................... 23

 AnodeRodInspection ............................................... 23

 Temperature-PressureReliefValveTest ................... 23

RECOMMENDED PROCEDURE FOR PERIODIC

REMOVAL OF LIME DEPOSITS FROM TANK

TYPE COMMERCIAL WATER HEATERS ........................ 23

 DelimingSolvents...................................................... 24

 TankCleanoutProcedure .......................................... 24

 DelimingUsingFlo-JugMethod ................................ 24

 DrainingandFlushing ............................................... 25

 Service ...................................................................... 25

LEAKAGE CHECKPOINTS .............................................. 26

TROUBLESHOOTING GUIDELINES ............................... 27

WATER PIPING DIAGRAMS .......................................28-33

NOTES ............................................................................. 34

TABLE OF CONTENTS

SAFE INSTALLATION, USE AND SERVICE

Theproperinstallation,useandservicingofthiswaterheaterisextremelyimportanttoyoursafetyandthesafetyofothers.

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injury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.

DANGER

WARNING

CAUTION

DANGER indicates an imminently

hazardous situation which, if not avoided,

will result in injury or death.

This is the safety alert symbol. It is used to alert you to

potential personal injury hazards. Obey all safety

messages that follow this symbol to avoid possible

injury or death.

WARNING indicates a potentially hazardous

situation which, if not avoided, could result

in injury or death.

CAUTION indicates a potentially hazardous

situation which, if not avoided, could result in

minor or moderate injury.

CAUTION used without the safety alert

symbol indicates a potentially hazardous

situation which, if not avoided, could result in

property damage.

APPROVALS

Low Lead Content

GENERAL SAFETY INFORMATION

Improper installation, use and service may

result in property damage.

CAUTION

•

Do not operate water heater if any part has been

exposed to flooding or water damage.

•

Inspect anode rods regularly, replace when significantly depleted.

•

Install in location with drainage.

•

Fill tank with water before operation.

•

Properly sized thermal expansion tanks are required on all

closed water systems.

Refer to this manual for installation and service.

ThankYouforpurchasingthiswaterheater.Properlyinstalledand

maintained,itshouldgiveyouyearsoftroublefreeservice.

ABBREVIATIONS USED

AbbreviationsFoundInThisInstructionManual:

• UL-UnderwritersLaboratoriesInc.

• ANSI-AmericanNationalStandardsInstitute

• NFPA-NationalFireProtectionAssociation

• ASME-AmericanSocietyofMechanicalEngineers

• AHRI-Air-Conditioning,HeatingandRefrigerationInstitute

• CAN - Canada

• EPACT-EnergyPolicyAct

• CSA-CanadianStandardsAssociation

This gas-fired water heater is design certified by Underwriters

LaboratoriesInc.underAmericanNationalStandard/CSAStandard

forGasWaterHeatersANSIZ21.10.3•CSA4.3(currentedition).

QUALIFIED INSTALLER OR SERVICE AGENCY

Installationandserviceofthiswaterheaterrequiresabilityequivalent

tothatofaQualiedAgency(asdenedbyANSIbelow)intheeld

involved. Installation skills such as plumbing, air supply, venting,

gassupplyandelectricalsupplyarerequiredinadditiontoelectrical

testingskillswhenperformingservice.

ANSIZ223.12006Sec.3.3.83:“QualiedAgency”-“Anyindividual,

rm, corporation or company that either in person or through a

representativeisengagedinandisresponsiblefor(a)theinstallation,

testingorreplacementofgaspipingor(b)theconnection,installation,

testing, repair or servicing of appliances and equipment; that is

experiencedinsuchwork;thatisfamiliarwithallprecautionsrequired;

and that has complied with all the requirements of the authority

havingjurisdiction.”

If you are not qualied (as dened byANSI above) and licensed or

certied as required by the authority having jurisdiction to perform a

giventaskdonotattempttoperformanyoftheproceduresdescribed

inthismanual.Ifyoudonotunderstandtheinstructionsgiveninthis

manualdonotattempttoperformanyproceduresoutlinedinthismanual.

PREPARING FOR THE INSTALLATION

1. Readthe “GeneralSafety”section, page4ofthismanual

first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-fired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first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orCAN/CSA-B149.1theNaturalGasandPropane

Installation 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.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.

4.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fires,seeFigures

3 and 7.

 Examinethelocationtoensurethewaterheaterc omplieswith

the“LocatingtheNewWaterHeater”sectioninthismanual.

5.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

Office of the State Architect, 400 P Street, Sacramento,

CA 95814.

6.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.

INTRODUCTION

ROUGH IN DIMENSIONS

TABLE 1. DIMENSIONS AND RECOVERY RATINGS

DIMENSIONS

Model Units A B C D E F G H J K L M

Natural & LP

Inches

611/8

155.25

581/2

148.6

2911/16

75.4

261/2

67.3

153/16

38.6

10.2

141/2

39.4

40.6

11/4

3.2

NPT

1/2

NPT

1115/16

30.3

100

Natural & LP

Inches

685/8

174.3

661/2

168.9

3015/16

78.59

273/4

70.5

153/16

38.6

10.2

153/4

40.0

40.6

11/4

3.2

11/4

NPT

1/2

NPT

1115/16

30.3

RECOVERY RATINGS

Model

Input

Approx.

Gal.

Cap.

Approx.

Liter

Cap.

Temp.

Rise

C° 17 22 28 33 39 44 50 56 61 67 72 78

Rating

Btu/Hr

Rating

F° 30 40 50 60 70 80 90 100 110 120 130 140

75 75,100 22 74 280

GPH 243 182 146 121 104 91 81 73 66 61 56 52

LPH 916 686 550 456 392 343 305 275 249 230 211 196

100 75,100 22 98 371

GPH 243 182 146 121 104 91 81 73 66 61 56 52

LPH 916 686 550 456 392 343 305 275 249 230 211 196

Recoveryratingsbasedon80%thermalefciency.

INSTALLATION CONSIDERATIONS

FIGURE 1.

THERMOMETERS (Not Supplied)

Thermometersshouldbeobtainedandeldinstalled.

Thermometersareinstalledinthesystemasameansofdetecting

thetemperatureoftheoutletwatersupply.

ThisWaterHeaterhasbeendesigncertifiedascomplyingwith

ANSIZ21.10.3-CSA4.3currentedition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handicapped.Ifanyoneusinghot

waterinyourhometsintooneofthesegroupsorifthereisalocal

code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 valves. Beforechanging the factory

settingonthethermostat,readthe“TemperatureRegulation”section

inthismanual,seeFigures17and18.

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 water heater. 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gasventor

chimneytowhichthewaterheatervent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waterheatermustbeaccomplishedinsuchamannerthat

ifthetankoranyconnectionsshouldleak,owwillnotcausedamageto

thestructure.Forthisreason,itisnotadvisabletoinstallwaterheater

inanatticorupperoor.Whensuchlocationscannotbeavoided,a

suitablemetaldrainpanshouldbeinstalledunderthewaterheater.

MetalDrainpansareavailableatyourlocalhardwarestore.Sucha

metaldrainpanmusthaveaminimumlengthandwidthofatleast

2”(51mm)greaterthanwaterheaterdimensionsandmustbepiped

toanadequatedrain.Thepanmustnotrestrictcombustionairow.

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by

agaswaterheater’spilotlightormainburner.Theresultingashback

andrecancausedeathorseriousburnstoanyoneinthearea,aswell

aspropertydamage.Ifinstallationinsuchareasisyouronlyoption,then

installationmustbeaccomplishedinawaythatthepilotameandmain

burnerameareelevatedfromooratleast18inches.Whilethismay

reducechancesofammablevapors,fromaoorspillbeingignited,

gasolineandotherammablesubstancesshouldneverbestoredor

usedinthesameroomorareacontainingagaswaterheaterorother

openameorsparkproducingappliance.NOTE:Flammablevaporsmay

bedrawnbyaircurrentsfromotherareasofthestructuretotheappliance.

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waterheater

extendingbeyondthefullwidthanddepthofthewaterheaterbyatleast

3”(76.2mm)inanydirection,orifthewaterheater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.

HIGH ALTITUDE

Waterheaterscoveredinthismanualhavebeentestedandapproved

forinstallation at elevations up to7,700 feet (2,347 m) abovesea

level.Forinstallationabove7,700feet(2,347m),thewaterheater’s

Btuinputshouldbereducedattherateof4percentforeach1,000

feet(305m)abovesealevelwhichrequiresreplacementoftheburner

oriceinaccordancewiththeNationalFuelGasCodeANSIZ223.1/

NFPA54 orthe NaturalGasandPropaneInstallationCodeCAN/

CSAB149.1.Contactyourlocalgassupplierforfurtherinformation.

Failuretoreplacethestandardoricewiththeproperhighaltitude

orice when installed at elevations above 7,700 feet (2,347 m)

couldresultinimproperandinefcientoperationofthewaterheater,

producingcarbonmonoxidegasinexcessofthesafelimits.This

couldresultinseriousinjuryordeath.Contactyourlocalgassupplier

foranyspecicchangesthatmayberequiredinyourarea.

CLEARANCES

Minimum clearances between the water heater and combustible

constructionare0inchatthesidesandrear,4”(102mm)atthe

front,and6”(153mm)fromtheventpipe.Clearancefromthetop

ofthejacketis12”(305mm)onmostmodels.

FIGURE 2.

A gas water heater cannot operate properly without the correct

amountofairforcombustion.Donotinstallinaconnedareasuch

asacloset,unlessyouprovideairasshowninthe“LocatingThe

NewWaterHeater”section.Neverobstructtheowofventilation

air.Ifyouhaveanydoubtsorquestionsatall,callyourgassupplier.

Failuretoprovidetheproperamountofcombustionaircanresult

in a re or explosion and cause death, serious bodily injury, or

propertydamage.

FIGURE 3.

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changetocorrosive

hydrochloricacidwhenexposedtothecombustionproductsof

thewaterheater.Theresultscanbehazardous,andalsocause

productfailure.

INSULATION BLANKETS

Do not obstruct water heater air intake

with insulating blanket.

Gas and carbon monoxide detectors

are available.

Install water heater in accordance with

the instruction manual.

Breathing carbon monoxide can cause brain damage or

death. Always read and understand instruction manual.

Breathing Hazard - Carbon Monoxide Gas

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.Thewaterheaterscoveredbythismanualmeet

or exceed the Energy Policy Act standards with respect to

insulation and standby heat loss requirements, making an

insulationblanketunnecessary.

Should you choose to apply an insulation blanket to this

heater,youshouldfollowtheseinstructions.SeetheFeatures

and Components section of this manual for identification

of components mentioned below. Failure to follow these

instructions can restrict the air flow required for proper

combustion,potentiallyresulting infire,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drafthood.

• DO NOTcoverthethermostatortheTemperature-

PressureReliefValve.

• DO NOTallowtheinsulationtocomewithin2inches(5

cm)ofthefloortopreventblockageofcombustionairflow

to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the

combustionairflow.

HARD WATER

Wherehardwaterconditionsexist,watersofteningorthethreshold

type of water treatment is recommended. This will protect the

dishwashers,coffeeurns,waterheaters,waterpipingandother

equipment. See the Maintenance Section in this manual for

sedimentandlimescaleremovalprocedures.

CIRCULATION PUMPS

Acirculatingpumpisusedwhenasystemrequiresacirculating

loop or there is a storage tank used in conjunction with the

water heater. See Water Piping Diagrams in this manual for

installationlocationofcirculatingpumps.

SeetheCirculationPumpWiringDiagramsbelowforelectrical

hookup information. Install in accordance with the current

edition of the National Electrical Code, NFPA 70 or the

CanadianElectricalCode,CSAC22.1.

Allbronzeorstainlesssteelcirculatingpumpsarerecommended

forusedwithcommercialwaterheaters.

Somecirculatingpumpsaremanufacturedwithsealedbearings

anddonotrequirefurtherlubrication.Somecirculatingpumps

must beperiodically oiled.Refer tothepumpmanufacturer’s

instructionsforlubricationrequirements.

CIRCULATING PUMP WIRING DIAGRAM

STORAGE TANK OR BUILDING RECIRCULATION

FIELD SUPPLIED TEMPERATURE CONTROL

INSTALLED IN THE STORAGE TANK

OR CIRCULATING LOOP RETURN LINE

CIRC

PUMP

MOTOR

L1 HOT

L2 NEUTRAL

120 VAC

POWER

NOTE: USE SEPARATE 120 VAC POWER

SUPPLY FOR PUMP CIRCUIT. DO NOT

SHARE POWER WITH APPLIANCE AS THIS

MAY CAUSE ELECTRICAL LINE NOISE AND

LEAD TO ERRATIC CONTROL SYSTEM

OPERATION.

FIGURE 4.

CIRCULATING PUMP WIRING DIAGRAM

DISHWASHER LOOP WITH TOGGLE SWITCH

FIELD SUPPLIED TEMPERATURE

CONTROL INSTALLED IN THE

CIRCULATING LOOP RETURN LINE

DISHWASHER

TOGGLE

SWITCH

CIRC

PUMP

MOTOR

L1 HOT

L2 NEUTRAL

120 VAC

POWER

NOTE: USE SEPARATE 120 VAC POWER

SUPPLY FOR PUMP CIRCUIT. DO NOT

SHARE POWER WITH APPLIANCE AS THIS

MAY CAUSE ELECTRICAL LINE NOISE AND

LEAD TO ERRATIC CONTROL SYSTEM

OPERATION.

FIGURE 5.

GAS SUPPLY SYSTEMS

Low pressure building gas supply systems are dened as those

systemsthatcannotunderanycircumstancesexceed14”W.C.

(1/2PSIGauge).Thesesystemsdonotrequirepressureregulation.

Measurementsshouldbetakentoinsurethatgaspressuresarestable

andfallwithintherequirementsstatedonthewaterheaterratingplate.

readingsshould be takenwithall gas burningequipment off(static

pressure)andwithallgasburningequipmentrunningatmaximumrate

(dynamicpressure).Thegassupplypressuremustbestablewithin1.5”

W.C.fromstatictodynamicpressuretoprovidegoodperformance.

Pressuredropsthatexceed1.5”W.C.maycauseroughstarting,noisy

combustionornuisanceoutages.Increasesorspikesinstaticpressure

duringoffcyclesmaycausefailuretoigniteorinseverecasesdamage

toappliancegasvalves.Ifyourlowpressuresystemdoesnotmeet

theserequirements,theinstallerisresponsibleforthecorrections.

HighPressurebuildingsupplysystemsusepressuresthatexceed

14” W.C. (1/2 PSI Gauge). These systems must use eld supplied

regulatorstolowerthegaspressuretolessthan14”W.C.(1/2PSI

Gauge).Appliancesrequiregasregulatorsthatareproperlysizedforthe

waterheaterinputanddelivertheratingplatespeciedpressures.Gas

supplysystemswherepressureexceeds5PSIoftenrequiremultiple

regulatorstoachievedesiredpressures.Systemsinexcessof5PSI

buildingpressureshouldbedesignedbygasdeliveryprofessionals

forbestperformance.Waterheatersconnectedtogassupplysystems

thatexceed14”W.C.(1/2PSIGauge)atanytimemustbeequipped

withagassupplyregulator.

GAS PRESSURE REQUIREMENTS

Naturalgasmodelsrequireaminimumgassupplypressureof4.5”

W.C.(1.12kPa).Propanegasmodelsrequireaminimumgassupply

pressure of 11” W.C. (2.74 kPa). The minimum supply pressure

is measured while gas is owing (dynamic pressure).The supply

pressure(dynamic)shouldneverfallbelowthespeciedminimum

supplypressure.Thesupplypressureshouldbemeasuredwithallgas

redappliancesconnectedtothecommonmainringatfullcapacity.If

thesupplypressuredropsmorethan1.5”W.C.(0.37kPa)asgasbegins

toowtothewaterheaterthenthesupplygassystemincludingthe

gaslineand/orthegasregulatormayberestrictedorundersized.See

SupplyGasregulatorsectionandGasPipingsectionofthismanual.

Thegasvalveonallmodelshasamaximumgassupplypressurelimit

of14”W.C.(3.48kPa)Themaximumsupplypressureismeasured

whilegasisnotowing(staticpressure).

SUPPLY GAS REGULATOR

Themaximumallowablegassupplypressureforthiswaterheater

is14.0inchesW.C.(3.48kPa).Installapositivelock-upgaspressure

regulatorinthegassupplylineifinletgaspressurecanexceed14.0

inchesW.C.(3.48 kPa) atany time.regulators must besized/used

accordingtomanufacturer’sspecications.

Ifapositivelock-upregulatorisrequiredfollowtheseinstructions:

1. Positivelock-upgaspressureregulatorsmustberatedatorabove

 theinputBtu/hrratingofthewaterheatertheysupply.

2. Positivelock-upgaspressureregulator(s)shouldbeinstalledno

 closerthan3feet(1meter)andnofartherthan8feet(2.4meters)

 ofequivalentlengthfromthewaterheater’sinletgasconnection.

3. Afterinstallingthepositivelock-upgaspressureregulator(s)aninitial

 nominalsupplypressuresettingof7.0”W.C.whilethewaterheater

 isoperatingisrecommendedandwillgenerallyprovidegood

 waterheateroperation.Someadditionadjustmentmayberequired

 latertomaintainasteadygassupplypressure.

4. When installing multiple water heaters in the same gas supply

 system it is recommended that individual positive lock-up gas

 pressureregulatorsbeinstalledateachunit.

MIXING VALVES

Water temperature over 125°F (52°C)

can cause severe burns instantly

resulting in severe injury or death.

Children, the elderly and the physically

or mentally disabled are at highest risk

for scald injury.

Feel water before bathing or showering.

Temperature limiting devices such as

mixing valves must be installed when

required by codes and to ensure safe

temperatures at fixtures.

Waterheatedtoatemperaturewhichwillsatisfyclotheswashing,dish

washing,andothersanitizingneedscanscaldandcausepermanent

injuryuponcontact.Shortrepeatedheatingcyclescausedbysmall

hotwaterusescancausetemperaturesatthepointofusetoexceed

thewaterheater’stemperaturesettingbyupto20°F(11°C).

Somepeoplearemorelikelytobepermanentlyinjuredbyhotwater

than others. These include the elderly, children, the inrm and the

physically/mentally disabled. Table 2 shows the approximate time-

to-burnrelationshipfornormaladultskin.Ifanyoneusinghotwater

provided by the water heater being installed ts into one of these

groupsorifthereisalocalcodeorstatelawrequiringacertainwater

temperatureatthepointofuse,thenspecialprecautionsmustbetaken.

In addition to using the lowest possible temperature setting that

satisesdemandoftheapplicationaMixingValveshouldbeinstalled

atthewaterheaterorathotwatertapstofurtherreducesystemwater

temperature.SeeFigure6.

Mixing valves are available at plumbing supply stores. Consult

a Qualified Installer or ServiceAgency. Follow mixing valve

manufacturer’sinstructionsforinstallationofthevalves.

TABLE 2.

Water

Temperature°F

Timefor

1stDegreeBurn

(LessSevereBurns)

TimeforPermanentBurns

2nd&3rdDegree

(MostSevereBurns)

110

(normalshowertemp.)

116 (painthreshold)

116 35minutes 45minutes

122 1minute 5minutes

131 5seconds 25seconds

140 2seconds 5seconds

149 1second 2seconds

154 instantaneous 1second

(U.S.GovernmentMemorandum,C.P.S.C.,PeterL.Armstrong,Sept.15,1978)

HOT WATER

OUTLET

TO TANK

INLET

CHECK

VALVE

MIXING

VALVE

COLD

WATER

INLET

TEMPERED WATER

OUTLET

12” TO 15”

(30-38 cm)

CHECK

VALVE

FIGURE 6.

INSTALLATION REQUIREMENTS

WATER PIPING

WATER (POTABLE) HEATING AND SPACE HEATING

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mixingvalve

mustbeinstalled.PleaserefertoFigure2forsuggestedpiping

arrangement.

Thesewaterheaterscannotbeusedinspaceheatingapplications

only.

CLOSED WATER SYSTEMS

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flowpreventers.Devicessuchasthesecause

thewatersystemtobeaclosedsystem.

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 must be installed on

all closed systems to control the harmful effects of thermal

expansion.Contactalocalplumbingservicetechniciantohave

athermalexpansiontankinstalled.

FIGURE 7.

NOTE: To protect against untimely corrosion of hot and cold

waterttings,itisstronglyrecommendedthatdi-electricunions

orcouplingsbeinstalledonthiswaterheaterwhenconnectedto

copperpipe.

Figure7showsthetypicalattachmentofthewaterpipingtothe

waterheater.Thewaterheaterisequippedwith1”NPTthreaded

nipple (75 gallon models) or 1.25” NPT threaded nipple (100

gallonmodels)waterconnections.

TEMPERATURE-PRESSURE RELIEF VALVE

Explosion Hazard

Temperature-Pressure Relief Valve

must comply with ANSI Z21.22-

CSA 4.4 and ASME code.

Properly sized temperature-

pressure relief valve must be

installed in opening provided.

Can result in overheating and

excessive tank pressure.

Can cause serious injury or death.

This water heater is provided with a properly rated/sized and

certied combination Temperature-Pressure Relief Valve (T&P

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 newT&Pvalvemustmeet therequirements of

localcodes,butnotlessthanacombinationTemperature-Pressure

ReliefValverated/sized andcertiedas indicatedin theabove

paragraph.Thenew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Btu/hrorkWinputrateasshown

onthewaterheater’smodelratinglabel.

NOTE: Inadditionto the factoryinstalled Temperature-Pressure

ReliefValve onthewater heater, eachremotestorage tankthat

maybeinstalledandpipedtoawaterheatingappliancemustalso

have its own properly sized, rated and approved Temperature-

PressureReliefValveinstalled.Callthetollfreetechnicalsupport

phonenumberlistedonthebackcoverofthismanualfortechnical

assistanceinsizingaTemperature-PressureReliefValveforremote

storagetanks.

Forsafe operationofthewaterheater,theTemperature-Pressure

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.

Installdischargepipingsothatanydischargewillexitthepipewithin

6inches(15.2cm)aboveanadequateoordrain,orexternaltothe

building.Incoldclimatesitisrecommendedthatitbeterminatedat

anadequatedraininsidethebuilding.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.

No valve or other obstruction is to be placed between the

Temperature-PressureReliefValveandthetank.Donotconnect

dischargepipingdirectlytothe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 adequate

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.

Water Damage Hazard

•

Temperature-Pressure Relief Valve discharge

pipe must terminate at adequate drain.

CAUTION

T&P Valve Discharge Pipe Requirements:

• 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notbeexposedtofreezingtemperatures.

• 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.

• Mustterminateamaximumofsixinchesaboveaoordrain

orexternaltobuilding.Incoldclimates,itisrecommended

thatdischargepipebeterminatedatanadequatedraininside

building.

• Shallnothaveanyvalveorotherobstructionbetweenthe

reliefvalveandthedrain.

Burn hazard.

Hot water discharge.

Keep clear of Temperature-

Pressure Relief Valve

discharge outlet.

TheTemperature-PressureReliefValvemustbemanuallyoperated

atleasttwice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inthismanual,andreplacetheTemperature-

PressureReliefValvewithaproperlyrated/sizednewone.

NOTE:ThepurposeofaTemperature-PressureReliefValveisto

preventexcessivetemperaturesandpressuresinthestoragetank.

The T&P valve is not intended for the constant relief of thermal

expansion.Aproperlysizedthermalexpansiontankmustbeinstalled

on all closed systems to control thermal expansion, see Closed

WaterSystemsandThermalExpansiononpage11.

If you do not understand these instructions or have any questions

regardingtheTemperature-PressureReliefValvecallthetollfreenumber

listedonthebackcoverofthismanualfortechnicalassistance.

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.

AIR REQUIREMENTS

Breathing Hazard - Carbon Monoxide Gas

Install water heater in accordance with

the Instruction Manual and NFPA 54 or

CAN/CSA-B149.1.

To avoid injury, combustion and ventilation

air must be taken from outdoors.

Do not place chemical vapor emitting

products near water heater.

Breathing carbon monoxide can cause brain damage or

death. Always read and understand instruction manual.

For safe operation an adequate supply of fresh uncontaminated air for

combustionandventilationmustbeprovided.

An insufcient supply of air can cause recirculation of combustion

products resulting in contamination that may be hazardous to life.

Suchaconditionoftenwillresultinayellow,luminousburnerame,

causingsootingofthecombustionchamber,burnersanduetubes

andcreatesariskofasphyxiation.

Donotinstallthewaterheaterinaconnedspaceunlessanadequate

supplyofairforcombustionandventilationisbroughtintothatspace

usingthemethodsdescribedintheConnedSpacesectionthatfollows.

Neverobstructtheowofventilationair.Ifyouhaveanydoubtsor

questionsatall,callyour gassupplier.Failure toprovidetheproper

amountofcombustionaircanresultinareorexplosionandcauseproperty

damage,seriousbodilyinjuryordeath.

UNCONFINED SPACE

AnUnconfinedSpaceisonewhosevolumeisnotlessthan50

cubic feet per 1,000 Btu/hr (4.8 cubic meters per kW) of the

totalinputratingofallappliancesinstalledinthespace.Rooms

communicatingdirectlywiththespace, inwhichtheappliances

are installed, through openings not furnished with doors, are

consideredapartoftheunconfinedspace.

Makeupairrequirementsfortheoperationofexhaustfans,kitchen

ventilationsystems, clothesdryersand fireplacesshall also be

considered in determining the adequacy of a space to provide

combustion,ventilationanddilutionair.

UNUSUALLY TIGHT CONSTRUCTION

Inunconfinedspacesinbuildings,infiltrationmaybeadequateto

provideairforcombustion,ventilationanddilutionoffluegases.

However,inbuildingsofunusuallytightconstruction(forexample,

weatherstripping,heavilyinsulated,caulked,vaporbarrier,etc.)

additionalairmustbeprovidedusingthemethodsdescribedin

theConfinedSpacesectionthatfollows.

CONFINED SPACE

AConnedSpaceisonewhosevolumeislessthan50cubicfeetper

1,000Btu/hr(4.8cubicmetersperkW)ofthetotalinputratingofall

appliancesinstalledinthespace.

Openingsmustbeinstalledtoprovidefreshairforcombustion,ventilation

and dilution in conned spaces. The required size for the openings is

dependentonthemethodusedtoprovidefreshairtotheconnedspace

andthetotalBtu/hrinputratingofallappliancesinstalledinthespace.

DIRECT VENT APPLIANCES

Appliances installed in a Direct Vent conguration that derive all

air for combustion from the outdoor atmosphere through sealed

intakeairpipingarenotfactoredinthetotalapplianceinputBtu/hr

calculationsusedtodeterminethesizeofopeningsprovidingfresh

airintoconnedspaces.

EXHAUST FANS

Whereexhaustfansareinstalled,additionalairshallbeprovided

toreplacetheexhaustedair.Whenanexhaustfanisinstalledin

thesamespacewithawaterheater,sufficientopeningstoprovide

freshairmustbeprovidedthataccommodatetherequirements

forallappliancesintheroomandtheexhaustfan.Undersized

openingswillcauseairtobedrawnintotheroomthroughthewater

heater’sventsystemcausingpoorcombustion.Sooting,serious

damagetothewaterheaterandtheriskoffireorexplosionmay

result.Itcanalsocreateariskofasphyxiation.

LOUVERS AND GRILLES

Thefreeareasofthefreshairopeningsintheinstructionsthatfollowdonot

takeintoaccountthepresenceoflouvers,grillesorscreensintheopenings.

Therequiredsizeofopeningsforcombustion,ventilationanddilution

airshallbebasedonthe“netfreearea”ofeachopening.Wherethe

freeareathroughadesignoflouverorgrilleorscreenisknown,itshall

beusedincalculatingthesizeofopeningrequiredtoprovidethefree

areaspecied.Wherethelouverandgrilledesignandfreeareaarenot

known,itshallbeassumedthatwoodlouverswillhave25%freearea

andmetallouversandgrilleswillhave75%freearea.Nonmotorized

louversandgrillesshallbexedintheopenposition.

FRESH AIR OPENINGS FOR CONFINED SPACES

The following instructions shall be used to calculate the size,

number and placement of openings providing fresh air for

combustion, ventilation and dilution in confined spaces. The

illustrationsshowninthissectionofthemanualareareferencefor

theopeningsthatprovidefreshairintoconfinedspacesonly.Do

notrefertotheseillustrationsforthepurposeofventinstallation.

SeeVentingonpage14forcompleteventinginstructions.

OUTDOOR AIR THROUGH TWO OPENINGS

FIGURE 8.

The confined space shall be provided with two permanent

openings,onecommencingwithin12inches(300mm)ofthetop

andonecommencingwithin12inches(300mm)ofthebottomof

the enclosure. The openings shall communicate directly with the

outdoors.SeeFigure8.

Eachopeningshallhaveaminimumfreeareaof1squareinchper

4,000Btu/hr(550mm2perkW)oftheaggregateinputratingofall

appliancesinstalledintheenclosure.Eachopeningshallnotbeless

than100squareinches(645cm2).

OUTDOOR AIR THROUGH ONE OPENING

FIGURE 9.

Alternatively a single permanent opening, commencing within 12

inches(300mm)ofthetopoftheenclosure,shallbeprovided.See

Figure9.Thewaterheatershallhaveclearancesofatleast1inch

(25mm)fromthesidesandbackand6inches(150mm)fromthe

frontoftheappliance.Theopeningshalldirectlycommunicatewith

theoutdoorsorshallcommunicatethroughaverticalorhorizontalduct

totheoutdoorsorspacesthatfreelycommunicatewiththeoutdoors

andshallhaveaminimumfreeareaofthefollowing:

1. 1 square inch per3000Btu/hr(733 mm

 per kW)ofthe total

inputratingofallapplianceslocatedintheenclosure,and

2. Notlessthanthesumoftheareasofallventconnectorsin

thespace.

OUTDOOR AIR THROUGH TWO HORIZONTAL DUCTS

FIGURE 10.

Theconnedspaceshallbeprovidedwithtwopermanenthorizontal

ducts,onecommencingwithin12inches(300mm)ofthetopand

onecommencingwithin12inches(300mm)ofthebottomofthe

enclosure.The horizontal ducts shall communicate directlywith

theoutdoors.SeeFigure10.

Eachductopeningshallhaveaminimumfreearea of1square

inchper2,000Btu/hr(1100mm2perkW)oftheaggregateinput

ratingofallappliancesinstalledintheenclosure.

Whenductsareused,theyshallbeofthesamecrosssectional

areaasthefreeareaoftheopeningstowhichtheyconnect.The

minimumdimensionofrectangularairductsshallbenotlessthan

3inches.

OUTDOOR AIR THROUGH TWO VERTICAL DUCTS

The illustrations shown in this section of the manual are a

reference for the openings that provide fresh air into conned

spacesonly.

DO NOT refer to these illustrations for the purpose of vent

installation.SeeVentingforcompleteventinginstructions.

FIGURE 11.

Theconned space shall be provided with twopermanentvertical

ducts,onecommencing within12 inches(300mm) ofthe topand

one commencing within 12 inches (300 mm) of the bottom of the

enclosure. The vertical ducts shall communicate directly with the

outdoors.SeeFigure11.

Eachductopeningshallhaveaminimumfreeareaof1squareinch

per4,000Btu/hr(550mm2perkW)oftheaggregateinputratingof

allappliancesinstalledintheenclosure.

Whenductsareused,theyshallbeofthesamecrosssectionalarea

asthefreeareaoftheopeningstowhichtheyconnect.Theminimum

dimensionofrectangularairductsshallbenotlessthan3inches.

AIR FROM OTHER INDOOR SPACES

FIGURE 12.

Theconnedspaceshallbeprovidedwithtwopermanentopenings,

one commencing within 12 inches (300 mm) of the top and one

commencingwithin12inches(300mm)ofthebottomoftheenclosure.

SeeFigure12.

Eachopeningshallcommunicatedirectlywithanadditionalroom(s)

ofsufcientvolumesothatthecombinedvolumeofallspacesmeets

thecriteriaforanUnconnedSpace.

Eachopeningshallhaveaminimumfreeareaof1squareinchper

1,000Btu/hr(2200mm2perkW)oftheaggregateinputratingofall

appliancesinstalledintheenclosure.Eachopeningshallnotbeless

than100squareinches(645cm2).

VENTING

Ifthewaterheaterisbeinginstalledasareplacementforanexisting

heaterinpre-existingventing,athoroughinspectionofexistingventing

systemmustbeperformedpriortoanyinstallationwork.

VENTDAMPERS-Anyventdamper,whetheritisoperatedthermally

orotherwisemustberemovedifitsuseinhibitsproperdraftingofthe

waterheater.

ThermallyOperatedVentDampers:thisgas-redwaterheaterhas

athermalefciencyatorabove80%whichmayproducearelatively

lowuegastemperature.Suchtemperaturesmaynotbehighenough

toproperlyopenthermallyoperatedventdampers.Thiswouldcause

spillageoftheuegasesandmaycausecarbonmonoxidepoisoning.

Ventdampersmustbearevidenceofcerticationascomplyingwith

thecurrenteditionoftheAmericanNationalStandardANSIZ21.66

CGA 6.14 (covering electrically and mechanically actuated vent

dampers).Beforeinstallationofanyventdamper,consultthelocal

gasutilityforfurtherinformation.

Toinsureproperventingofthisgas-redwaterheater,thecorrect

ventpipediametermustbeutilized.Anyadditionsordeletionsof

othergasappliancesonacommonventwiththiswaterheatermay

adverselyaffecttheoperationofthewaterheater.Consultyourgas

supplierifanysuchchangesareplanned.

Forproper venting in certain installations, alargerdiameter vent

pipe may be necessary. Consult your gas supplier to aid you in

determiningtheproperventingforyourwaterheaterfromthevent

tablesinthe currenteditionoftheNationalFuelGasCodeANSI

Z223.1/NFPA54ortheNaturalGasandPropaneInstallationCode

CAN\CSA B 149.1.

Periodically check the venting system for signs of obstruction or

deteriorationandreplaceifneeded.

Thecombustionandventilationairowmustnotbeobstructed.

Thewaterheaterwithdrafthoodinstalledmustbeconnectedtoa

chimneyorlistedventpipesystem,whichterminatestotheoutdoors.

Neveroperatethewaterheaterunlessitisventedtotheoutdoors

and has adequate air supply to avoid risks ofimproper operation,

explosionorasphyxiation.

• For proper draft hood attachment, the draft hood legs may be

angledslightlyinward.

• Placethedrafthoodlegsinthereceivingholesonthetopofthe

water heater. The legs will snap in theholes togive atight t.

Securedrafthoodwiththesuppliedbrackets.

• Placetheventpipeoverthedrafthood.Withtheventpipeinposition,

drillasmallholethroughboththeventpipeanddrafthood.Secure

themtogetherwithasheetmetalscrew.SeeFigure13.

Obstructedordeterioratedventsystemsmaypresentserioushealth

riskorasphyxiation.

FIGURE 13.

The vent pipe from the water heater must be no less than the

diameter of the draft hood outlet on the water heater and must

slopeupwardatleast1/4inchperlinearfoot(21mmpermeter).

SeeFigure14.

Allvent gases must becompletelyvented to the outdoorsof the

structure(dwelling). Installonlythedrafthoodprovided withthe

newwaterheaterandnootherdrafthood.

Ventpipesmustbesecuredateachjointwithsheetmetalscrews.

FIGURE 14.

Theremustbeaminimumof6”(153mm)clearancebetweensingle

wall vent pipe and any combustible material.  Fill and seal any

clearancebetweensinglewallventpipeandcombustiblematerial

withmortarmix,cement,orothernoncombustiblesubstance.For

other than single wall, follow vent pipe manufacturer’sclearance

specications.Toinsureatighttoftheventpipeinabrickchimney,

sealaroundtheventpipewithmortarmixcement.

Failure to have required clearances between vent piping and

combustiblematerialwillresultinarehazard.

Be sure vent pipe is properly connected to prevent escape of

dangerousuegaseswhichcouldcausedeadlyasphyxiation.

Chemicalvaporcorrosionoftheflueandventsystemmayoccur

ifairforcombustioncontainscertainchemicalvapors.Spraycan

propellants,cleaningsolvents,refrigeratorandair conditioner

refrigerants,swimming poolchemicals, calcium and sodium

chloride,waxes, bleach and process chemicals are typical

compoundswhicharepotentiallycorrosive.

GAS PIPING

Contact your local gas service company to ensure that adequate

gasserviceisavailableandtoreviewapplicableinstallationcodes

foryourarea.

SizethemaingaslineinaccordancewithTable3.Theguresshown

areforstraightlengthsofpipeat0.5in.W.C.pressuredrop,whichis

considerednormalforlowpressuresystems.Note:Fittingssuchas

elbows,teesandlineregulatorswilladdtothepipepressuredrop.

AlsorefertothecurrenteditionsoftheNationalFuelGasCode(NFPA

54)orNaturalGasandPropaneInstallationCode(CAN/CSAB149.1).

Makesuregassuppliedissametypelistedonmodelratingplate.The

inletgaspressuremustnotexceed14inchwatercolumn(2.6kPa)

fornaturalandpropane(L.P.)gas.Theminimuminletgaspressure

shownonratingplateisthatwhichwillpermitringatratedinput.

Ifthegascontrolvalveissubjectedtopressuresexceeding1/2pound

persquareinch(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

ortheNaturalGasandPropaneInstallationCodeCAN/CSAB149.1

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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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.

The minimum inlet gas pressure shown on the rating plateis that

whichwillpermitringattheratedinput.

TABLE 3. GAS SUPPLY LINE SIZES (IN INCHES)*

MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOUR

LENGTH

FEET

NOMINAL IRON PIPE SIZES (

INCHES

)

INPUT IN THOUSANDS (BTU/HR)

1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4"

10 175 360 680 1400 2100 3960 6300 11000 23000

20 120 250 465 950 1460 2750 4360 7700 15800

30 97 200 375 770 1180 2200 3520 6250 12800

40 82 170 320 660 990 1900 3000 5300 10900

50 73 151 285 580 900 1680 2650 4750 9700

60 66 138 260 530 810 1520 2400 4300 8800

70 61 125 240 490 750 1400 2250 3900 8100

80 57 118 220 460 690 1300 2050 3700 7500

90 53 110 205 430 650 1220 1950 3450 7200

100 50 103 195 400 620 1150 1850 3250 6700

125 44 93 175 360 550 1020 1650 2950 6000

150 40 84 160 325 500 950 1500 2650 5500

175 37 77 145 300 460 850 1370 2450 5000

200 35 72 135 280 430 800 1280 2280 4600

TABLE 4.

LENGTH

METERS

NOMINAL IRON PIPE SIZES (

INCHES

)

INPUT IN KW

1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4"

3 51 105 199 410 615 1160 1845 3221 6735

6 35 73 142 278 428 805 1277 2255 4626

9 28 59 110 225 346 644 1031 1830 3748

12 24 50 94 193 290 556 878 1552 3192

15 21 44 83 170 264 492 776 1391 2840

18 19 40 76 155 237 445 703 1259 2577

21 18 37 70 143 220 410 659 1142 2372

24 17 35 64 135 202 381 600 1083 2196

27 16 32 60 126 190 357 571 1010 2108

31 15 30 57 117 182 337 542 952 1962

38 13 27 51 105 161 299 483 864 1757

46 12 25 47 95 146 278 439 776 1610

53 11 23 42 88 135 249 401 717 1464

61 10 21 40 82 126 234 375 688 1347

Usepipejointcompoundorteontapemarkedasbeingresistantto

theactionofpetroleum[Propane(L.P.)]gases.

Thewaterheateranditsgasconnectionmustbeleaktestedbefore

placingthewaterheaterinoperation.

The water heater 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poundper

squareinch(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poundpersquareinch(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

15 and 16.

FIGURE 15. GAS PIPING WITH FLEXIBLE CONNECTOR.

FIGURE 16. GAS PIPING WITH ALL

BLACK IRON PIPE TO GAS CONTROL.

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fittingwithacappednipple

inthebottomoutletorotherdevicerecognizedasaneffective

sediment trap. If a tee fitting  is used, it shall be installed in

conformance with one of themethods of installation shown in

theFigures15and16.

Contaminantsinthegaslinesmaycauseimproperoperationof

thegascontrolvalvethatmayresultinfire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sedimenttrapmustbeincorporatedinthepiping.Thesediment

trap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ortheNaturalGasand

PropaneInstallationCodeCAN/CSAB149.1.

START UP CONDITIONS

DRAFT HOOD OPERATION

Check draft hood operation by performing a worst case

depressurization of the building. With all doors and windows

closed, and with all air handling equipment and exhaust fans

operating such as furnaces, clothes dryers, range hoods and

bathroomfans,amatchameshouldstillbedrawnintothedraft

hoodofthewaterheaterwithitsburnerring.Iftheameisnot

drawn toward the draft hood, shut off water heater and make

necessaryairsupplychangestocorrect.

CONDENSATION

Whenever the water heater is filled with cold water,some

condensatewillformwhiletheburnerison.Awaterheatermay

Shortrepeatedheatingcyclescausedbysmallhotwaterusescan

causetemperatures atthe pointof useto exceedthe thermostat

settingbyupto30°F(16.7°C).Ifyouexperiencethistypeofuse

you should consider using lower temperature settings to reduce

scaldhazards.

Anywaterheater’sintendedpurposeistoheatwater.Hotwater

isneededforcleansing,cleaning,andsanitizing(bodies,dishes,

clothing).Untempered hot water can present a scald hazard.

Dependingonthetimeelement,andthepeopleinvolved(adults,

children, elderly, inrm, etc.) scalding may occur at different

temperatures.

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

handicapped.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,seeFigure2.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,

seeFigures17and18.

TEMPERATURE REGULATION

FOR YOUR INFORMATION

appeartobeleakingwheninfactthewateriscondensation.This

usuallyhappenswhen:

a.Anewwaterheaterislledwithcoldwaterforthersttime.

b.Burninggasproduceswatervaporinwaterheaters,par ticular ly

highefciencymodelswhereuetemperaturesarelower.

c.Largeamountsofhotwaterareusedinashorttimeandthe

rellwaterinthetankisverycold.

Moisturefromtheproductsofcombustioncondenseonthecooler

tanksurfaces and form drops of waterwhichmay fall onto the

burnerorotherhotsurfacestoproducea“sizzling”or“frying”noise.

Excessive condensation can cause pilot outage due to water

runningdownthefluetubeontothemainburnerandputtingout

thepilot.

Neverallowsmallchildrentouseahotwatertap,ortodrawtheirown

bathwater.Neverleaveachildorhandicappedpersonunattended

inabathtuborshower.

NOTE:Awatertemperaturerangeof120°F-140°F(49°C-60°C)is

recommendedbymostdishwashermanufacturers.

Thethermostatofthiswaterheaterhasbeenfactorysetatitslowest

position (PILOT LIGHTING). It is adjustable and must be reset to

the desired temperature setting to reduce the risk of scald injury.

Themark(

)indicativeofapproximately120°F(49°C)ispreferred

startingpoint.SomeStateshavearequirementforalowersetting.

Turn the water temperature dial clockwise (

 ) to decrease the

temperature,orcounterclockwise(

)toincreasethetemperature.

Shouldoverheatingoccurorthegassupplyfailtoshutoff,turnoffthe

manualgascontrolvalvetothewaterheater.

FIGURE 17.

Water

Temperature°F

Timefor

1stDegreeBurn

(LessSevereBurns)

TimeforPermanentBurns

2nd&3rdDegree

(MostSevereBurns)

110

(normalshowertemp.)

116 (painthreshold)

116 35minutes 45minutes

122 1minute 5minutes

131 5seconds 25seconds

140 2seconds 5seconds

149 1second 2seconds

154 instantaneous 1second

(U.S.GovernmentMemorandum,C.P.S.C.,PeterL.Armstrong,Sept.15,1978)

FIGURE 18.

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State Water Heaters SBS75-76-NE User manual

Brand: State Water Heaters

Model: SBS75-76-NE

Category: Water heaters & boilers

Type: User manual

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