- Instruction Manual Residential Gas Water Heater

16
SEDIMENT TRAPS
Asedimenttrapshallbeinstalledasclosetothegasinletofthewater
heateraspracticalatthetimeofwaterheaterinstallation.Thesediment
trapshallbeeitherateettingwithacappednippleinthebottomoutlet
orotherdevicerecognizedasaneffectivesedimenttrap.
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.
VENTING
VENT 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
ar e mai nta ine d as cited in local cod es or the curr ent
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.