A.O. Smith HW-160 Product information sheet

-63
fggimith
HYQRONIGBOILERS
instructions
and
guarantee
Fg¶iimith
RESIDENTIAL
TYPE
HYDRONIC
BOILERS
models
HW-160
HW-200
HW-225
withFIA
I'll'PLAINTIFPS
EXHIBIT
acenturyForwaitl.
IVLI.S.A.
PRINTEDI3399IPARTNO.76033374
Raenbeck
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

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R'IATER
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ROUGH-INDIMENSIONS
Horizontalfluepiperunsshouldhave
a1/4"(perft.oflength)minimumup-
wardpitchto
Ichimney.
GASINLET
(MALE)J
CONTROL
PANEL
--H
RS)I~,RASSEMBLY
PILOT
PSAFETY
SWITCH
,L..mI
A~C3Ii''
g
OUTLETC0
L
E
WATER
TINLET
H
G
IHW-160HW-200HW-225
A491/8511/4601·/4
293/8323/8323/8
C241/4271/8271/8
D203/4203/4203/4
E51/251/251/2
F888
G161/4161/4161/4
H777
J353/4353/4.353/4
K323232
L11/411/411/4
M111
N111
P123/8123/8123/8
R133/4133/4133/4
161/2161/2161/2
T13/413/41·3/4
(ALLDIMENSIONSAREININCHES)
2AOS102
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Roenbak
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

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CAPACITIES
ModelHW-160HW-200HW-225
NaturalNatural
TypeofGas8*L.P.8*L.P.Natural
Max.StuInput,
A.G.A.Rating160,000200,000225,000
Max.BtuOutput
A.G.A.Rating128,000160,000180,000
HeatLoss
Load-Btu108,800136,000153,000
Max.Sq.Ft.Hot
Water,150Btu7239071,020
Max.Sq.Ft.Hot
Water,200Btu543680785
*NotlistedforusewithL.P.-airgas.
Batingsshownareforcurrent,modernheatingsystem
design.WhereA.O.Smithboilersareconnectedto
heavy,castironradiatorsystemsorwhereunusual
pick-uporlargesizepipingconditionsexist,reduce
ratingsby10%..?gc
CIRCULATOR-EXPANSIONTANKSELECTIONS-
ThefollowingcirculatorsarerequiredtoprovideThediaphragmtypeexpansiontanksizeslisted
properwaterflowratesforeachboilermodelwithareforthesmallwatervolumesencounteredwith
averageresistancesexpectedinmodernsmallthemodernsystems.Properlysizedcompression
pipesystems.typetankscanalsobeused.
MODELHW-160HW-200HW-225
A.0.Smith
CirculatorHH-18SH-1SH-1
ModelNo.$;:.i
EX-TROL
ExpansionTank303030
ModelNo.E
NOTE:Largewatervolumesystemsmayrequire
tadditionaltankvolume.Ñ
ÅOS103
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

Piping"
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FOREWORD
ThisdesigncompileswithANSZ21.10.3asalowinthediagramsasthesearenecessaryforcheck-
pressureboiler.ingtheoperationoftheboiler.
4
.MAKESUREthegasonwhichtheboilerwill
Detailedinstallationdiagramsareinthismanual.operateisthesameasthatspecifiedontheboiler
Thesediagramswillserve'toprovidetheinstallerModelandRatingPlate.
withareferenceforthematerialsandmethodof
pipingsuggested.ItishighlyessentialthatallNOTE:Itisrecommendedthattheinstructions
waterandgaspiping,andtheelectricalwiring,asoutlinedinthelatestpublicationof
beinstalledandconnectedasshownintheANSbookletZ21.30"InstallationofGas
diagrams.AppliancesandGasPiping"alsobefol-
lowed.ThisManualcanbepurchased
CheckthediagramsthoroughlybeforestartingfromtheAmericanGasAssociationLab-
installationtoavoidpossibleerrorsandtomini-'oratories,8501E.PleasantValleyRd.,
mizetimeandmaterialscost.Cleveland,Ohio44131.
Particularattentionshouldbegiventotheinstal-Unlessotherwisestated,theseinstructionsshall
lationofthermometersatthelocationsindicatedapplytoallresidentialtypeboilers.
I
INSTALLATIONINSTRUCTIONS
LOCATION
When'installingtheboiler,considerationmustIftheunconfinedspaceiswithinabuildingofun-
begiventoproperlocation.Locationselectedusuallytightconstruction,airforcombustion,
shouldbeasclosetothestackorchimneyasventilationanddrafthooddilutionshallbeob-
practicable,andascentralizedwiththepipingtainedfromoutdoorsorfromspacesfreelycom-
systemaspossible.municatingwiththeoutdoors.Permanentopen-
ing(s)havingatotalfreeareaofnotlessthanone
Theboilershouldalsobelocatednearafloorsquareinchper5,000Btuhtotalinputshallbe
draintodisposeofwaterandinanareawhereitprovided.
willnotbesubjecttofreezingtemperatures.
AIRREQUIREMENTSConfinedSpace
Anamplesupplyofairmustbeprovidedforproper
combustion.AninsufficientsupplyofairwillALLAIRFROMINSIDEBUILDING
resultinayellow,luminousburnerflame,causing
carboningorsootingofthefinnedheatexchangerTheconfinedspaceshallbeprovidedwithtwo
andburner,andpossibledamagetotheboiler,permanentopenings,onenearthetopoftheen-
closureandonenearthebottom.Eachopening
ChemicalVaporsIshallhaveafreeareaofnotlessthanonesquare
inchper1,000·Btuhofthetotalinputratingofall
Whendestructiveorcorrosivechemicalvaporsappliancesintheenclosure,freelycommunicating
(suchasdrycleaningfluids,pressurecanpropel-withinteriorareashavinginturnadequateinfil-
lents,refrigerants,chlorine,bleachingcompounds,trationfromtheoutside.
flammables,etc.)maybepresent,eveninminute
quantitiesinthecombustionairsupplyprovisionsALLAIRFROMOUTDOORS
shouldbemadetotakeallair(100%)forcombus-
tionanddrafthooddilutionfromoutsideofbuild-Theconfinedspaceshallbeprovidedwithtwo
ingandatapointremotefromthedischargeofpermanentopenings,oneinornearthetopofthe
drycleaningequipmentand/orbuildingexhaustenclosureandoneinornearthebotto'm.When
systems,directlycornmunicatingwithoutdoorsorbymeans
ofverticalducts,eachopeningshallhaveafree
UnconfinedSpaceareaofnotlessthanonesquareinchper4,000
BtuhoftotalInputratingofal.Iappliancesinthe
Inbuildingsofconventionalframe,brickorstoneenclosure.Ifhorizontalductsareusedeach
construction,unconfinedspacesnormallyprovideopeningshallhaveafreeareaofnotlessthan
adequateairforcombustion,ventilationanddraftonesquareinchper2,000Btuboftotalinputof
hooddilution.allappliancesintheenclosure.
4AOS104
Roeabeek
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

II,
GAS
CIRCULATORh
C/
JS"
WhereanexhaustfanIsInstalledinthesameLEVELLING.
roomwithaboiler,suffialentopeningsforair
mustbeprovidedinthewalls.Undersizedopen-Theboilershouldbecheckedduringandafter
ingswillcauseairtobedrawnintotheroominstallationtobecertainthatitislevel.
throughthechimney,causingpoorcombustion.
SootingmayresultinseriousdamagetotheIftheunitisnotlevel,shimsshouldbeinserted
boiler.undertheunittocorrectthiscondition.
INSTALLATIONCLEARANCESWATERLINECONNECTIONS
(Fig.1)
Theseunitsarelistedfor'
forinstallationwiththe
followingminimumclearances:Inallcases,localcodeshaveauthorityoverthe
followinginstructions:
6"betweensidesandrearofunitandcombustion
construction.1.SupplyandReturnLines.Besurethatsys-
temsupplyandreturnlinesareconnectedto
24"shouldbeprovidedatthefrontoftheunitfortheproperboilerconnections,fig.1,topro-
properservicing.Inautilityroominstallation,videupflowofwaterthroughtheboiler.
thedoorshallbewideenoughtoallowtheboiler
toenterortopermitthereplacementofanother2.HydronicBalancer.Pipinginfig.1includes
appliancesuchasawaterheater,ahydronicbalancerby-passbetweensupplyd
andreturnlines.Thiswillpermitadjustment
Itisrecommendedthatsufficientareabeleftattoprovideanadequateminimumflowrate
rearoftheseunitsforservicing.throughtheboilerwithcertainvariableflow
ratezonedsystems.ThisvalveshouldbeS
Allmodelsmaybeinstalledoncombustibleopenedonlyenoughto.stabilizetheboiler
flooring.controlswhenonlythesmallestzoneisin
operation.
CONVENTIONALINSTALLATl0N
tPIPE HANGERS
MAINPILOT
EXPANSICNTANKMANUALSHVTOFF
SHOTOFF_,_VALVE
VALVE
HYORONIC
BALANCER
AIR--VALVE
TANKSEPARATOR
FITTING[FF
USED),
SUPPLyISKUTOFF
sygyRELLEF
VALVEVALVE
LINE(PIPEDTOOPEN DRAIN)
SYSTEM RETURN)THERALTIMETER
NSTALL INACCORDANCE WITH LOCAL
CODESUNE
*DRAIM
VALVEWERCOTLEr
*NOTE:
ORAIN
VALVE
ANDGATE
VALVE*GATE
VALVE)if
SHOWN
BELOW
CIRCULATOR
AREFLOW
SWITCHii
FOR
PRESSllRE
PURGING,
IF!'HEIGitT
(FOLLOW
DESIRED,BY-PASS.3THERM0METERLOCAL
CODES)
FOR
FAST
FILLILIMITCONTROL
t(MANUAL
RESET)
EPRESSURE-5"AllNIMUM
REDilClNG.
COLD
WATEÑVALVEDRAIN
SUPPLYWATER
lNLET
FIGuRE15
AOS105
RoenbeckP~
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

holler
i-.4
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I
S.Water8upplyLineandOperatingPressures.Iftheboilerisconnectedtoheatingcoils
TheseboileracanbeusedONLYInaforcedexposedtorefrigeratedair,the.boilerpiping
hotwaterheatingsystem.Thewatersupplysystemmustbeequippedwithflowvalvesor
mustIncludeapressurereducingvalveotherautomaticmeanstopreventgravity
toestablishpropersystemoperatingpree-'circulationthroughtheboilerduringthe
Modern,fastheatinghydronicboilerscoolingcycle.
functionbestwithacoldfillpressureof12
to18pol.Ifsystemwatervolumeandop-
eratingtemperaturecanbeexpectedtocreate7.~CirculatingPump..Acirculatingpumpof
anexpandedpressureuptoormorethan80propercapacitymustbeselectedforeach
psI,theseboilerscanbeorderedwitha65boilermodeltoassureadequatewaterflow
palpressurerelief.Thlawillbeaaubstituteforeachboilerfiringrate.Refertowater
forthe30palvalve.normallyshippedwithInformationonpage3forpumpselectionand
theboiler.ReliefvalverelievingpressureinstallasshownInfig.1.~
shouldnotexceedtheoperatingpressureofa
anysystemcomponent.TheA.O.SmithAlthougheachcirculatorisoiledandop-
.boilersareratedfor160palmaximumwork-eratedbythemanufacturer,ITMUSTBE
pressure.OILEDAGAINBEFOREOPERATED.Oll
thethreeoilcups(2onthemotor,1onthe
Systemswithlargewatervolumeandsys-pump)asInstructedontheoiltubesupplied
temarequiringpressurepurgingshouldbewiththeunit,fig.8.
Installedwithby-passpipingaroundthe
pressurereducingvalve.
ha-
4.VentValves.ItIsrecommendedthatauto-¬.,
matic,loosekeyor:acrewdrivertypevent
!valvesbeInstalledateachconvectoror
radiatorandotherhighpointsInthedis-
tributionsystem.Ifautomaticventsare-*,,
used,pressureatalltimesmustbehigh
enoughtopreventairentrythroughthese
devices.
5.ManifoldHeaders.Formulti-loopsystems
usingonecirculator,manifoldheadersmust_'-
beinstalledinthesupplyandreturnlines.;
.For2or3circuitsusingS/4"O.D.copper,..,..,
tubingand2,8or4circuitsusing1/2"O.D.
tubing,themanifoldshouldbeatleast11/2''
indiameter.Thecircuitsshouldbespaced
ontheheaderataminimumofthreeInches
centertocenter.installabalancingcockin
eachreturnline.FIGuRI!3olLINGCIRCuLAToR
6.CoolingPiping.Flowcontrolvalves,manualThereafter,duringtheheating-season,lub-
ormotorized,mustbe.Installedtocontrol>ricatethethreeoilcupsatleastonceevery
waterflowthroughdesiredunit,fig.2.4months.Combinationheating-coolingsys-
tomashouldbelubricatedeveryfourmonths
WatertemperatureIntheheatingsyptemmustyeararound.
bereducedtolessthan100degreesFbefore
coolingsystemIsstarted,ordamagetothe
chillerunitmayoccur.
RETURNEUPPLY.
._I.
BOILER
CHILLER
COOLiljG
CIRCUl.,ATOR
FIGuRa2REcDMaENDEDPIPINGDIAGRAM
6AOS106
Roenbeck
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

column'
,I,'
*'C
y'.:
('1
Use2or3teaspoonsfulinbearingoilcup,UseTable1whichistakenfromTable2A
fig.3,and10or12dropsinthemotoroilofANSbookletZ21.30"InstaIlation
cups.Useno.20non-detergentmotoroil.ofGasPipingAppliancesinBuildings''and
•isbasedonapressuredropof0.3inchesof(
Followthesameoilingprocedureifare-waterandaspecificgravityof0.80(except
placementcirculatorIsinstalledintotheforpropanegaswhichis1.53).11theserv-
system.Icepressureisfiveincheswatercolumn'or
less,useonesizelargerpipethanspecified.
GASCONNECTIONSWhereitisnecessarytousemorethanthe
Beforeattachingthegaslinetotheboiler,beaveragenumberofpipefittingsingassup-
surethatallgaspipeusediscleanonthein-plyline,usealargerpipethanspecifiedto
side.Ifdirtandscalefromthegaspipegetscompensateforincreasedpressuredrop.
intothegascontrols,acontrolmayfailtoclose
properly,causingtheboilertooverheat.3.GasMeter.Besurethatthegasmeterhas
sufficientcapacitytosupplythefullrated
Jointcompounds(pipedoe)shallbeappliedgas,inputoftheboiler.aswellastherequire-
sparinglyandonlytothemalethreadsofpipementsofallothergasfiredequipmentsup-
joints.Suchcompoundsshallberesistanttothepliedbythemeter.Ifgasmeteristoosmall,
actionofI.iquefiedpetroleumgases.askthegascompanytoinstallalarger
.meter.
Soapandwatersolution,orothermaterialac-
ceptableforthepurpose,shallbeusedinlocating4.GasPressureRegulators.Thegaspressure
gasleakage.MATCHES,CANDLES,FLAMEORpressureregulatorisIncludedinthecombi-
OTHERSOURCESOFIGNITIONSHALLNOTBEnationgasvalveandissettooperateonthe
USEDFORTHISPURPOSE.boilerratingplate.
ThreadedunionsusedinthegaslinesshallbeIfitisnecessarytoadjustthegaspressure,
oftheinetal-to-rnetaltype.removetheregulatorcaponundersideofgas
valveandturntheadjustingscrewcounter-
Totrapanydirtorforeignmaterialinthemainclockwisetodecreasethepressure.Turn
gasline,adirtlegmustbeIncorporatedinthetheadjustingscrewclockwisetoincrease
bottomofaconvenientpiperise,seefig.1.thepressure.Donotexceedthepressure
RefertoANSbookletZ21.30.specifiedas'over-firingorsubsequentdam-ra
agetotheboilerwillresult.(SeeTable2
Inallcases,localcodeshaveauthorityovertheforcorrectmanifoldpressuresforeachunit.)
followinginstructions.TABLE2-CORRECTMANJFOLDPRESSUREFORFULL
1.CorrectGas.MakesurethegasonwhichtheBOILERINPUT
boilerwilloperateisthesameasthatspeci-
fledontheboilerratingplate.DonotinstallModelNumberA.G.A.RatedInputNaturalGas*L.P.Gases
theboilerifequippedforadifferenttypegasHW-160160,0003.510.5
-consultyoursupplier.Hw-200200,0003.510.5
HW-225225,0003.5
2.SizingGasSupplyLine.iflocalcodesre-
quirethatthemainmanualgasshutoffvalve*NatlistedforusewithL.P.-airgas.
beinstalledoutsidetheunitataspecified
height,installvalveasshowninfig,1.
VENTCONNECTIONSi-",
TABLE1-GASSUPPLYPIPESlZES(INJNCHES)Removeallsootorotherobstructionsfromchim-
DistanceNaturalGasL.P.Gasneywhichwillretardfreedraft.
ToBoiler
FrornMeterHW-160HW-200HW-225HW-IGOHW-2001.FluePlpe,Installandsizethefluepipe,
asnecessary.
103/43/43/41/21/2
301113/43/4Theconnectionfromtheboilertothechim-
501111/43/41neyshouldberunfullsizeandshouldhave
•80111/411/411aminimumpitchupwardtothechimneyof
10011/411/411/411onequarterInchperfoot'length.Donotin-
15011/411/411/4111/4stallwithoutdraftdiverteranddonotinstall
20011/411/411/4111/4Be
anydamperintheflue...Besurethattheflue
pipedoesnotextendbeyondtheinsidewallr,'1
ofthechirnney.
AOS1077
Roenbeck
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

(
Whereacontinuousorintermittentbackdraftcodesasisthepracticeofventinggasfired
isfoundtoexist,thecausemustbedeter--equipmenttotheductworkofventilating
minedandcorrected.systems.
FailuretocorrectbackdraftsmaycauseairWhereaseparateflueconnectionisnot
andunsafe
Iconditions.availableandthefluepipefromtheboiler
mustbeconnectedtoacommonfluewitha
Aspecialfluecapmayberequired.Ifthecoaloroilburningfurnacethefluepipe
backdraftcannotbecorrectedbythenormalshouldenterthecommonflueorchimneyat
methodsorIfasuitabledraftcannotbeob-apointABOVEthefluepipefromthecoal
tained,ablowertypefluegasexhausteroroilfurnace.
mustbeemployedtoassureproperventing
andcorrect'combustion.Wheretwoormoreappliancesventintoa
commonflue,theareaofthecommonflue
2.ConnectingBoilertoaCommonFlue.Avoidshouldatleastequaltheareaofthelargest
connectingtheboilertoacommonflueorflueorventconnectorplus50%oftheareas
chimneywithoilorcoalburningequipment,oftheadditionalflueorventconnector.
Thispracticeisprohibitedbymanylocal
WIRINGCONNECTl0NS
AllelectricalworkmustbeInstalledinaccord-
ancewiththeNationalElectricalCodeandmust
conformtolocalregulations.
Theelectricalconnectionsmustbemadesothat
boththecirculatorandgasvalveoperatesimul-
taneouslywhenthethermostatcallsforheat.
Selecttheappropriatewiringdiagramforthe.type
ofsystemtowhichtheboilerisconnected:
Figure5-ConventionalSystem.
Figure6-ZonedSystem,multiplecirculators.
JMPORTANT-Whenzonevalvesareused,the
boilercircuitshouldnotbeenergizedbeforethe
zonevalvewaterpassageisopened.Theboiler
circuitmustbede-energizedbeforethezonevalve
isclosed.
Figure7-ZonedSystems,Honeywellvalves.
Figure8-ZonedSystem,White-Rodgersvalves
(2wire).
Figure9-ZonedSystem,White-Rodgersvalves
(3wire).
NOTE:Fig's.4,5,6,7,8and9:
Ifanyoftheoriginalwireassuppliedmustbe
replaced,useonlytype1050Cthermoplasticor
equivalent.
8AOS108
Roenbeck
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

..CONTROLBOX
pgTRANSFORMER
(24V}r--OALARM
-(24v
OPERATING
RA890LIMIT
TIMERS427B
FALARM
*-5362-SILENCE
G22PST
EXCESSNCNOCTOGGLE
TEMP.'""(REÆR
VIEY)
LIMI
RESET)
FLOW
SWITCH--
OO
123456789101112
HIGHTEMP.WIAEFLAME
ROO
*PLOSAFETYSHUT-
OFFVALVE
LOWGAS
PRESSURE.
I
SWITCH
HfGHGASTHERMCCOUPLE?
PRESSURE
SWITCH
FACTORYW1RED
FIGURE4-FACTORYBOILERWIRING
AOS109g
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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

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NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

24VOLT
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ITHERMAL
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48484-
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484548454545
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TOHANDLE UP
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.8ZONE
VALVES
ZONE
VALVES
(w-R
TYPE 1311
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MODEL
AA44E4
ORHIGHER
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809-A
12LLRELAY
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PUMP
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TERMINALS
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FIGuRE9-ZoNEDSYSTEM-WHITE-RODGER53WIREZONEYALVES
CLEANINGANDFLUSHINGINSTRUCTIONS
Whencompleted,thehydronicsystemshouldbe1.Mix1/2gallonofA.O.Smithblydro-Prep®
internallycleanedandflushedtoremovecontami-hydronicsystemconditionerwiththreequarts
nantsthatmayhaveaccumulatedduringinstalla-ofwarmwater.
tlon.
!2.Addthesolutiontothesystemusingeither
Failuretodosocanproduceacidconcentrationsofthefollowingmethods:
thatbecomecorrosive,causegasestoformthat
blockwatercirculationorleadtoformationofWithanacidpumporhandpump
depositsontheboilersurfaces,anyofwhich
couldresultindamagetothesystemandcir-aOpenboilerdrainvalveandremovean
culator.amountofwaterapproximatelyequalto
thevolumeofcleaningsolutiontobe
Toassuresystemcleanlinessandlonglife,A.O.added.Closedrainvalve.
Smith*Hydro-Prep®hydronicsystemconditioner
isfurnishedwiththeboiler.Aftermaking'certain•Connectpumptoboilerdrainvalve,Open
thecompletedinstallationdoesnotleak,shutoffdrainvalveandpumpmixturefromcon-
thecoldwatersupplyandproceedasfollows:tainerintothesystem.
*AVAILABLEINQUARTS(PARTNO.97091)ORHALFGALLONS•Closedrainvalveanddisconnectpump.
(PARTNO.97092)FROMYOURNEARESTA.O.SMITHCORP.
PRODUCTSERVICEDIVISIONBRANCH.
12AOS112
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

I
SA
PA
:I
ERST
SWITCH
MANUAL
Throughpressurereliefvalveopening4.Operatethesystemforaminimumof1hour
(toamaximumof24hours).Asnotedabove,
•Closesysteminletandoutletvalvesatthesystempressureandtemperaturemustbe
boiler.suchthatthewaterdoesnotboll.
eRelievepressureflamboilerandremove
pressurereliefvalvefromairpurger.5.SYSTEMMUSTNOWBEDRAINEDAND
FLUSHED.
•Removeanamountofwaterfromthesys-
temapproximatelyequaltothevolumeof^.Closethemanualgasshutoffvalveto
cleaningsolutiontpbeadded.turnofftheburner.Thiswillallowthe
circulatortocontinueoperatingduring
.Addthecleaningsolutiontothesystemtheflushingprocedure.
throughthereliefvalveopening.Replace
reliefvalve..Open'thecoldwatersupplytothesys-
tem.
.Opensysteminletandoutletvalvesat
boiler.*Connectahosetotheboilerdrainvalve,
.allowcleaningsolutiontoflowtodrairt.
3.Pressurizethesystem.Ifnecessary,open
thecoldwatersupplyalveandaddpressure.Allcleanershouldberemovedafter15to
tothesystemsothatthewaterdoesnotboil20minutesofflushing.
duringthecleaningprocess.
OPERATINGINSTRUCTIONS
LIGHTINGINSTRUCTIONS6
b"Isura
120V
.SOHz
CAUTION:MakesureheaterisfilledwithwaterTONexreANE
beforelightingpilot.Themain(man-J'2SED•PUMP
ual)gasshutoffvalveandpilotad-___ayEu.OW____
justingvalve,locatednearmainan__...._______
burner,shouldbeclosedforatleastRMWHETONUEPOLt
5minutes.SYSTEM
OPERATING
CONTROL
Donotattempttolightpilotifgasodorispresent.
Lighttheunitinaccordancewiththeinstructions
ontheLightingandOperat|ngplatefastenedtocE
theboiler..,NO
SAFETYI.TRANSFORMER TAANSPORMER
(24V)
P1LOTOEt1
ISEQUENCEOFOPERATION(refertowiringdia-4cIIM2
.gram,fig.10).TR2I
30MV.I
$THERMOCOUPLE
]gTR
1.Forinitialstart-up,thesystemiselectri-
callyenergizedbyclosingthemaindis-
connectswitchaftermanualignitionofimmcH(MR
pilot.EXCESSHIGHGAS
TEMPERATUREPRESSURE
ePanelalarmwillsound.Movealarmsil-*.°""4'NGIJMITIMA
I
enceswitchoncontrolboxtotheOFFPR2LOW
GAS
•
PRESSURE
position.RA6SOSWITCH
~SQ4INDICATOR
LAMPO
.Withaprovenpilotflame,thepurgetimerSAFETY
SHUTOFF VALVE
(3427B)initiatesa5minuteprepurgeL----FACTORY
WIRED
cycle.Attheendoftheprepurgecycle,Q--FIELD WillED
theTR1contactsopenandTR2contacts2y
close.Thealarmsilenceswitchmaynow.--
bemovedbacktotheiONposition.AlarmTORAME
shouldremainsilent.'
FlGURE10
AOS113139
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

wide.
the'
I
2.Withexcesstemperaturelimit,flowswitch,mainburners.Manualresettingofthiscon-
operatinglimit,systemoperatingcontrol,trolisrequired.
highgaspressureandlowgaspressure
switchesclosed,theRA890relayperforms9.Lowwaterornoflowcondition:
itselectroniccheck.Itsloadrelaysthen
pullintoenergizeterminal5oftherelay,.Theflowswitchcontactswillopen,shut-
poweringthegassafetyshutoffvalve.Maintingoffmainburner.Bollerwillnotfire
burnersignite..untilnormalflowconditionsarere-
established.
3.Systemoperatingcontrolissatisfied.
•Safetyshutoffvalveisde-energized.10.Iftheredrunninglightonthecontrolbox
fails,thefollowingsafetydevicesshould
•Mainburnershutsoff.bechecked:
•Pilotcontinuestoburnonstand-by..OperatingLimit
operation.
•LowGasPressureSwitch
4.Ifflamefailureoccurs:
.HighGasPressureSwitch
.Absenceofflameissensedwithin2-4
seconds.•FlowSwitch
•Terminal5ofRA890relayisde-ener-.ExcessTemp.LimitControl
gizedandmainburnersshutoff.
5.Ifflamecannotbeprovenwithin15seconds:AIRSHUTTERADJUSTMENT
.TheRA890relayivilllockoutonsafety,Toobtainidealmainburneroperatingconditions,
closingthenorma.llyopen(N.O.)alarmthegasandairmustbeproperlyproportioned.The
contactsonrelayandactivatealarm.properair-gasmixturemaybeobtainedbyrotating
theairshutteronfaceofburner.
.Pilotsafetyswitchcontactsopenand
pilotgassupplyshutsoffinapproximatelyNOTE:Spreadertypeburnershaveanorange
90seconds.qualityintheflamewhenusedonL.P.
gas.Thisisanormalandapprovedchar-
.Aftercauseoffailure 'hasbeencorrected,acteristic.
thesafetyswitchoftheRA890relay
mustbemanuallyresetandpilotrelighted1.Operatethesystem.
beforemainburnerWillre-lgnite.
pressure.'2.Loosenthelocknutandopentheairshutter
6.Lowgaspressure:
•Ifregulatoroutletpressuretothecontrol3.Graduallyclosetheshutteruntilyellowtips
stringdropstolessthan2.0"W,C.(Nat-appearintheburnerflame.Slowlyre-open
uralgas)or9.0"W.C.
'(Propanegas),thetheshutteruntiltheflametipsareblue.Do
lowgaspressureswitchcontactswillnotopenshutteranyfurtherthannecessary
open,shuttingoffthemainburners.Man-asflamewillbecomenoisyandliftfromthe
ualresettingofthepressureswitchisburner.
required.
7.Highgaspressure:CHECKINGANDADJUSTINGTHEINPUT
Ifgassupplypressuretothemainburner
orificesexceeds4.0"W.C.(Naturalgas)orf.Attachapressuregaugeoramanometerto
12,0"(Propanegas),thehighgaspressurethegaugeportandrefertoTABLE2for
contactswillopen,shuttingoffthemaincorrectmanifoldpressure.
burners.Manualresettingofthepressure
switchisrequired.NOTE:Thegasmetershouldbeclockedbe-
foresystemwatertemperatureex-
8.Excessivewatertempe(ature:ceeds1500F.
Ifboilerwatertemperatureexceedssetting2.Usethisformulato"clock"themeter.Be
ofexcesstemperaturelimitcontrol,thecon-surethatothergasconsumingappliances
tactsInthecontrolcipen,shuttingoffthearenotONduringthisinterval.
14AOS114
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

I
I
man.'
~
~~L
m
&I'l(54
I
~~Igory1
III
IP
»i8II~
I.~~+~~
I
)V
ii
3600XH=BtuhVALVEADJUSTMENTS
T
T=TimelasecondstoburnonecubicfootHydronicBalancer(By-PassValve)
H=tu'spercubicfootofgas.9
ThehydronicbalancervalveshownInfig.1,is
tobeInstalledinaconnectionbetweentheboiler
EXAMPLE:(UsingHW-200boiler)outletandthepumpInlet.Certainlowflowzone
conditionswillrequire.balancingtoprovideaddi-
T=18.9secondstionalflowratethroughtheboiler.
H=1050Btu
Btuh=?Initialstart-upofthezonewithlowestflowrate
mayrequirepartialopeningofthisvalvetoata-
GasFlowthrough.metr:ballzeboileroperationofdesignwatertempera-a
ture.Nofurtheradjustmentofthevalvewillbe
8600required.
X1050=200000Btuhp
18.9PRECAI.ITIONS
NOTE:Undernocircumstancesshouldthe
b•gasInputexceedtheinputshownonIftheunitlaexposedtothefollowing,donotop-
theboilerratingplate.Overfiringcrateboileruntilcorrectivestepshavebeenmade
-·couldresultindamageorsootingofbyaqualifiedserviceman:
theheater.
1.Floodingtolevelofburnerorcontrolsor
THERMOSTATCONTROLSETTINGhigher.
The.thermostatIsasafetydevicewiredInserles2.Exposuretoexternalfire.
withthemaingasvalve.Setthethermostatcon-
trol,fig.11,toapproximately100Fabovethede-8.Ifdamaged.
signedsystemtemperature,Iftheboileroutlet9
watertemperatureshouldexceedthethermostat4.Firingwithoutwater.
setting,themaingasvalvewillclosebutthe
circulatorwillcontinuetooperate.Maximumad-5.Scoting.
JustablesettingIs2400Fcut-outwitha50Fto
45°Fadjustabledifferential.
dIW.I.w-
.g
FIGURE11
•..
-AOS11515"
Roenbeek
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

ILI5.4,LJA.~~I.A
I
Glenyear(6narantee
Thiscertificateproperlyfilledoutshallconstituteaguaranteeandagreementbetween
A.0.SMITHCorporationandtheownerasfollows:
IfwithinONEyearafteroriginalinstallationoftheA.0.Smithhydronicboiler,anypart
orportionshallproveuponexaminationbytheCorporationtobedefectiveinmaterialor
workmanship,theCorporation,atitsoption,willrepairorexchangesuchpartorportion.
IfwithinTENyearsaftertheoriginalinstallationoftheboiler,theheatexchanger,coil
orgasburnershallproveuponexaminationbytheCorporationtobedefectiveinmaterial
orworkmanshipordamagedbythermalshock,theCorporation,atitsoption,willrepair
orexchangesuchpartorportion.(THISTENYEARTERMISREDUCEDTOFlVE
YEARSWHEN=THEBOILERISUSEDFORHOTWATERSUPPLYPURPOSES.)The
repairedorexdhangedoriginalpartswillbecoveredbyaguaranteeextension,onthe
part,sufficienttocovertheunexpiredportionoftheoriginalguarantee.
Allguarantees,arewithouteffectandvoidifunfiltered,reclaimedwateriscirculated
throughorstoredintheboiler.
Thisguaranteeappliestotheboileronlyifitisinstalledinaccordancewithapplicable
localcodes,ordinances,goodtradepracticesandwhentheboilerhasbeenoperatedonly
(a)withpotablewatercirculatingthroughorstoredintheboiler.Useaseparatelyin-
stalledheaexchangerforindirectheatingofsaltwaterorcorrosivechemicals.
(b)whencompletelyfullofliquidfreetocirculateatalltimes;
(c)atwaterpressuresnotexceedingthepressureratingshownontheboiler;
(d)withalistedASMEratedreliefvalveofadequatecapacitynotexceedingpressures
permittedbylocalcodesandmaximlimpressureof160psi.
(e)attemperaturesnotexceedingthemaximumsettingoftheoperatingand/orhighlimit
control;:
(f)withheatexchangerandcoilfreeofscaledeposit;
(g)innon-corrosiveatmospheres;
(h)atfiringratesnotexceedingtheratedcapacityofthespecificmodel;
(i)withinstallationinconformitywiththeA.O.SMITHCorporationinstallationinstruc-
tionsapplicabletothespecificmodel.
Anyaccidenttotheboiler,anymisuse,abuse(includingfreezing)oralterationofitor
anyoperationofitinamodifiedform,willvoidthisguarantee.
NOOTHERGUARANTEEORWARRANTY,EITHEREXPRESSORIMPLIED(INCLUD-
ING,BUTNOTLIMITEDTO,AWARRANTYOFMERCHANTABILITY),ISMADEIN
BEHALFOFTHECORPORATIONWITHRESPECTTOTHEBOILER.THECORPORA-
TIONSHALLNOTSELIABLEBYVIRTUEOFTHISGUARANTEEOROTHERWISE
FORDAMAGETOANYPERSONSORPROPERTY.
AIIreplacementsshallbeF.O.B.pointofshipmentandtheCorporationshallnotbe
liablefordrayage,labororinstallationcosts.
Ownerfggismith
.InstallationAddressuyonocaas
CityandStateCopper
DateInstalledModelNo.SerialNo.
IMPORTANT:Filloutguaranteeandkeepforfuturereference.AOSMHCORP.
AOS116~ÃÃIII
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

t'6
'.i
c
term
term
Ir
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irxt
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't
FORYOURSAFETY
aaaitb IeglitbIfyousmeltgas:MODELS
1.OpenwindowsHW-160
RESIDENTIALTYPE.2.Don'ttouchelectricalswitchesHW-200
•HYDRONICBOlLER3.StinguishanyopenflameHW-225
4.Immediatelycallyourgassupplier.
withFIA
LIMITEDWARRANTY
A.O.SmithCorporation,thewarrantor,extendsthefollowingLIMITEDWARRANTYtotheawnerofthishydronicboiler:',I
1.ifwithinTENyearsafterinitialJnstallationofthisbailer,aheatexchanger,coilorgasburnershallproveuponexaminationbythewarrantor
tobedefectiveinmaterialarworkmanship,thewarrantor,ofhisaptionwillexchangeorrepairsuchportarportion.Thistermisreducedto
FlVEyearsifthisboilerIsusedforwaterheatingpurposesotherthanhydronicspaceheating.
a.ThiswarrantyisextendedtotheawnerforalletherpartsarpartianduringtheFIRSTyearfollowinginitialinstallationofthisboiler."tj
b.Thewarrantyontherepairorreplacementofthepartorporticowillbelimitedtotheunexpiredterm^oftheoriginalwarranty.
2.CONDITIONSandEXCEPTJDNS.....r,';
ThiswarrantyshallapplyonlywhentheboilerisInstalledinaccordancewithlocalplumbingandbuildingcodes,ardinancesandregulations,~
theprintediristructlansprovidedwithitandacadindustrypractices.inaddition,apressurereliefvalve,certifiedbytheAmericanSocietya
MechanicalEngineersmusthavebeeninstalledandfreshwaterusedfarFillingandmake-uppurposes,c,
a.Thiswarrantyshallapplyanly·
only onlywhentheboilerisused:
(1)attemperaturesnotexceedingthemaximumsettingafitsaperativeand/arhighlimitcentral;
(2)atwaterpressurenotexceedingtheworkingpressureshownontheboiler;II,
(3)whenfilledwithboilerwater,freetocirculateatalltimesandwiththeheatexchangerandcallfreeofdamagingscale
deposits
(4)inanon-carrasiveandndn-contaminatedatmosphere;
(5)intheUnitedStates,Itsterritoriesarpassesions.
(6)withanintermittentcirculatingactionandwiththepumpandburneroperatingtogether.
b.Anyaccidenttotheboiler,onymisuse,abuse(includingfreezing)arafterationofit,anyoperationofitInamodifiedform,aranyattempt
torepairleaksInthecoil(s)orheatexchanger(s)willvoidthiswarranty.ca
3.SERVICEandREPAlREXPENSE
Underthislimitedwarrantythewarrantarwillprovideanlyareplacementpart.Theawnerisresponsibleforoilethercosts,SuchcostsmayIl.>cr
includebutorenotlimitedto",'6
a.Lobarchargesforservice,removal,repair,arreinstallatianafthecomponentpart;ir;
b.Shipping,delivery,handling,aridadministrativechargesfarforwardingthereplacementpartfromthenearestdistributorandreturningthe
•claimeddefectiveparttosuchdistributar;
c.~Allcastnecessaryarincidentalfaranymaterialsand/orpermitsrequiredfarinstallerianofthereplacement.
4.LIMITATIONONIMPLIEDWARRANTIES
Irnplledwarranties,Includinganywo;rrantyofmerchantabilityimposedanthesaleafthisboilerunderstatelawarelimitedtoane(1)yeardur-4.' >lIt
ationfortheheateroranyafitsparts.Samestatesdonotallowlimitationsonhowlonganimpliedwarrantylasts,satheabovelimitationmayi5
lip
notapplytoyou,'.j
5.CLAIMPROCEDUREI+
Anyclaimunderthiswarrantyshouldbeinitiatedwiththedealerwhasoldthebailer,orwithanyetherdealerhandlingthewarrantor'sproducts.hg
IFthisisnotpracticable,theawnerlhould shouldcontact:
U.5.CustomersexceptCaliforniaCaliforniaCustomersONLYCanadianCustomers>Icy
A.~O.SmithCarpararianA.0SmithCorporattanA.0.5mithCorporatiari
P.O.Box28.33375CentralAvenueP.O.Box310-768ErieStreet[
Konkakee,filinois60901UnlanCity,California94587StratFard,OntarloN5A6T3
Telephone:[phone]Telephone:[phone]Telephone:[phone]
a.
~Thewarrantorwillonlybonarreplacementwithidenticalarsimilarpartsthereafwhicharemanufacturedordistributedbythewarrontor.
b.Dealerreplacementsarenadasubject
bjecttoin-warrantyvalidationbywarrantor.8„
i i
6,DISCLAIMERSf.
Ic
K
NOOTHEREXPRESSWARRANTYAS
)ASBEENORWJLLBEMADEINBEHALFOFTHEWARRANTORWITHRESPECTTOTHEBolLEROR
THEINSTALLATION,OPERATION,REPAIRORREPLACEMENTOFTHEBolLER.~THEWARRANTORSHALLNOTBERESPONSIBLEFOR)~i
WATERDAMAGE,LOSSOFUSEOFTHEUNIT,INCONVENIENCE,LO55ORDAMAGETOPERSONALPROPERTY,OROTHERCONSEQUEN-
TJALDAMAGE.THEWARRANTORSHALLNOTBELIABLEBYVIRTUEOFTHISWARRANTYOROTHERWISEFORDAMAGETOANYPER.
SONSORPROPERTY,WHETHERDIRECTORINDIRECT,ANDWHETHERARISINGINCONTRACTORTORT.
a.SomestatesdanotallowtheexclusianarIfmitationoftheIncidentalarconsequentialdamage,sotheabovelimitationorexclusionmaynotiFI
applytoyou.'15
b.Thiswarrantygivesyouspecificlegalrights,ondyoumayalsohaveotherrightswhichvaryfromstatetostate.I
FillInthefal[awingfaryourownreference.Keepit.Registrationisnotacanditionofwarranty.Themodelandserialnumberorefoundontheboiler's
ratingplate.V
I>5
il
•
Owner.
InstallationAddress~ ~m m~ ~
mathlc*c
Cityand5tate.rom=onarsonr
DateInstalledMadelNo.SerialNo.CONSUMERPRODUCTSDIVISION
KANKAKEE,ILLlNOISj'$
Dealer'sNamePhaneNo.AÑDpir
STRATFORD,ONTARIO.CANADA
Dealer'sAddressPARTNo.76035?v.
PRINTEDINU.S.A.3395177FILLJNWARRANTYANDKEEPFORFUTUREREFERENCEAOS117REVISION2
Roenbeck Roenbeek
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

Ap
G0
B
RWATER
EM
I
I
ROUGH-INDIMENSIONS
Horizontalfluepiperunsshouldhave
a1/4"(perftaoflength)minimumup-
wardpitchtochimney.I-HQ
GASINLET
(MALE)J
CONTROL
-PANEL
ASSEMBLY
PILOT
PSAFETY
SWITCH
St
OUTLETCD
WATER
TINLET
HW-160HW-200HW-225
A491/8511/4601·/4
B293/8323/8323/8
C241/4271/8271/8
D203/4203/4203/4
E51/251/251/2
F888
G181/4161/4161/4
H777
J353/4353/4353/4
K323232
L11/411/411/4
M111
N111
P123/8123/8123/8
R133/4133/4133/4
S161/2161/2161/2
T13/413/413/4
(ALLDIMENSIONSAREININCHES)
2AOS118
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

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CAPACITIES
tModelHW-160HW-200HW-225
NaturalNatural
IRIIIIm~
TypeofGas5*L.P.8*L.P.Naturalf:
Max.BtuInput,
A.G.A.Rating160¡000
~~199,000~225,000I
Max.BtuOutput,II~I~
A.GA.Rating128,000160,000
~I180,000
Max.HeatLoss
Load-Btu~I~~~II
108,800136,000153,000
Max.Sq.Ft.Hot
Water,I150Btu~I
7239071,020
Max.Sq.Ft.Hot
Water,200Btu543680785
*NotlistedforusewithL.P.-airgas.
Ratingsshownareforcurrent,modernheatingsystem
design.WhereA,O.Smithboilersareconnectedto
heavy,castironradiatorsystemsorwhereunusual
pick-uporlargesizepipingconditionsexist,reduce
ratingsby10‰',
CIRCULATOR-EXPANSIONTANKSELECTIONS-
ThefollowingcirculatorsarerequiredtoprovideThediaphragmtypeexpansiontanksizeslisted
properwaterflowratesforeachboilermodelwithareforthesmallwatervolumesencounteredwith
averageresistancesexpectedinmodernsmallthemodernsystems.Properlysizedcompression
pipesystems.typetankscanalsobeused.
MÖDELHW-160HW-200HW-225
A.O.Smith
CirculatorHH-IBSH-1SH-1
•
ModelNo.
EX-TROL
ExpansionTank303030
ModelNo.
NOTE:Largewatervolumesystemsmayrequire
additionaltankvolume.
AOS119O
Roeabeck
Roeabeck3
E
d1:
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018

FOREWORD
ThisdesigncomplieswithANSZ21.10.3asalowinthediagramsasthesearenecessaryforcheck-
pressureboiler.Ingtheoperationoftheboiler.
0
Detailedinstallationdiagramsareinthismanual.MAKESUREthegasonwhichtheboilerwill
Thesediagramswillservetoprovidetheinstalleroperateisthesameasthatspecifiedontheboileri
withareferenceforthematerialsandmethodofModelandRatingPlate.
pipingsuggested.Itisblghlyessentialthatall
waterandgaspiping,an)theelectricalwiring,Wheretheseinstructionsareatvariancewith
beinstalledandconnectedasshowninthelocalcodes,complywiththelocalcode.
diagrams.itisrecommendedthattheinstructionsasoutlined
,CheckthediagramsthoroughlybeforestartinginthelatestpublicationofANSIbookletZ223.1-
installationtoavoidpossibleerrorsandtomini-1974"NATIONALFUELGASCODE''alsobe
mizetimeandmaterialscost.followed.ThisManualcanbepurchasedfromthe
AmericanGasAssociationLaboratories,8501East
Particularattentionshouldbegiventothe.instal-PleasantValleyRoad,Cleveland,Ohio44131,
lationofthermometersatthelocationsindicated
INSTALLATIONINSTRUCTIONS
LOCATION
Wheninstallingtheboiley,considerationmustadequateairforcombustion,ventilationanddraft
begiventoproperlocation.Locationselectedhooddilution.
shouldbeasclosetothestackorchimneyas
practicable,andascentralizedwiththepipingIftheunconfinedspaceIswithinabuildingofun-
.system
systemaspossible.usuallytightconstruction,airforcombustion,
Theboilershouldalsobelocatednearafloorventilationanddrafthooddilutionshallbeob-
draintodisposeofwaterandinanareawhereittainedfromoutdoorsorfromspacesfreelycom-
willnotbesubjecttofreezingtemperatures.'municatingwiththeoutdoors.Permanentopen-
ing(s)havingatotalfreeareaofnotlessthanone
AIRREQUIREMENTSsquareinchper5,000Btuhtotalinputshallbe
AnamplesupplyofairmustbeprovidedforproperProvided.
combustion.Aninsufficientsupplyofairwill.
resultinayellow,luminousburnerflame,causingConfmedSpace
carboningorsootingofthefinnedheatexchanger
andburner,andpossibledarqagetotheboiler.ALLAIRFROMINSIDEBUILDING
ChemicalVaporsTheconfinedspaceshallbeprovidedwithtwo
Ipermanentopenings,onenearthetopoftheen-
Boilercorrosionandcomponentfailurecanbeclosureandonenearthebottom.Eachopening
causedbytheheatingandbreakdownofairshallhaveafreeareaofnotlessthanonesquare
bornechemicalvapors.Spraycanpropellants,Inchper1,000Stubofthetotalinputratingofall
cleaningsolvents,refrigeratorandaircondition-appliancesintheenclosure,freelycommunicating
ingrefrigerants,swimmingpoolchemicals,cal-withinteriorareashavinginturnadequateinfil-
ciumandsodiumchloride,waxes,andprocesstrationfromtheoutside.
chemicalsaretypicalcompoundswhicharepoten-
tiallycorrosive.ThesematerialsarecorrosiveALLAIRFROMOUTDOORS
atverylowconcentrationlevelswithlittleorno
odortorevealtheirpresence.'Theconfinedspaceshallbeprovidedwithtwo
.permanentopenings,oneInornearthetopofthe
Productsofthissortshouldrtotbestoredneartheenclosureandoneinornearthebottom.When
boiler.Also,airwhichisbroughtincontactwithdirectlycommunicatingwithoutdoorsorbymeans
theboilershouldnot
necessary,
containanyofthesechemi-ofverticalducts,eachopeningshallhaveafree
cals.Ifnecessary,·uncontaminatedairshouldbeareaofnotlessthanonesquareinchper4,000
obtainedfromremoteoroutsidesources.Btuhoftotalinputratingofall'appliancesinthe
Ienclosure.Ifhorizontalductsareusedeach
UnconfinedSpace.openingshallhaveafreeareaofnotlessthan
Inbuildingsofconventionalframe,brickorstoneonesquareinchper2,000Btuhoftotalinputof
construction,unconfinedspacesnormallyprovideallaPPliancesintheenclosure.
4AOS120
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM INDEX NO. 190311/2015
NYSCEF DOC. NO. 337 RECEIVED NYSCEF: 02/20/2018