16
sedIMent traps
Asedimenttrapshouldbeinstalledasclosetothegasinletofthewater
heateraspracticalatthetimeofwaterheaterinstallation.Thesediment
trapshouldbeeitherateettingwithacappednippleinthebottom
outletorotherdevicerecognizedasaneffectivesedimenttrap.
Contaminantsinthegaslinesmaycauseimproperoperationofthe
gascontrolvalvethatmayresultinreorexplosion.Beforeattaching
thegaslinebesurethatallgaspipeiscleanontheinside.Totrapany
dirtorforeignmaterialinthegassupplyline,adripleg(sometimes
calledasedimenttrap)mustbeincorporatedinthepiping.Thedrip
legmustbereadilyaccessible.Installinaccordancewiththe“Gas
Piping”section.Refer to the current edition of the National Fuel
GasCode(ANSIZ223.1/NFPA54)ortheNaturalGasandPropane
InstallationCode(CAN/CSAB149.1).
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.
ventInGvent pIpe terMInatIon
Thefirststepistodeterminewheretheventpipewillterminate.
SeeFigures19,20,and21.Theventmayterminatethrougha
sidewallasshowninFigure19orthroughtheroofasshownin
Figures20and21.
Theventsystem must terminate so that proper clearances
aremaintained as cited in local codes or the current
editionofthe National Fuel Gas Code, (ANSI Z223.1, 12.9.1
through12.9.4)or the Natural Gas and Propane Installation
Code(CAN/CSA-B149.1).
Instructionsonproperinstallationthroughasidewallareprovided
inFigures15A,15B,15C,and15D.
Planthevent system layout so that proper clearances are
maintainedfromplumbingandwiring.
Ventpipesservingpower ventedappliancesare classifiedby
buildingcodesas“ventconnectors”.Requiredclearancesfrom
combustiblematerialsmust be provided in accordance with
informationinthismanualunderFACTS TO CONSIDER ABOUT
LOCATION and INSTALLING THE WATER HEATER, and with
the National Fuel Gas Code and local codes.