Owner manual

14
GAS PIPING
Makesurethegassuppliedisthesametypelistedonthemodel
ratingplate.Theinletgaspressuremustnotexceed14inchwater
column(3.5kPa)fornaturalandpropanegas(L.P.).Theminimum
inletgaspressureshownontheratingplateisthatwhichwillpermit
ringatratedinput.
All gaspiping must complywith local codes andordinances or with the
Natural Gasand Propane InstallationCode (CAN/CSA B149.1).
Copperandbrasstubingandttings(excepttinlinedcoppertubing)
shouldnotbeused.
Ifthegascontrolvalveissubjectedtopressuresexceeding1/2psi
(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 sufficientsize mustbe run tothe water heater.
Consult thecurrent edition of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dripleg(sedimenttrap)aheadofthegascontrolvalvetohelpprevent
dirtandforeignmaterialsfromenteringthegascontrolvalve.
• Aexiblegasconnectororagroundjointunionbetweentheshut
offvalveand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.
Thisheaterisapprovedforoperationupto5,300feet(1,615m)
withoutalteration. Highaltitude modelsare availablefrom the
factory for elevationsbetween 5,300 feet (1,615 m) and 10,100
feet(3,079m).
Usepipejointcompoundorteontapemarkedasbeingresistant
totheactionofpetroleum[Propane(L.P.)]gases.
Theapplianceanditsgasconnectionmustbeleaktestedbefore
placingtheapplianceinoperation.
The appliance and its individual Shut-of f valve should
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 should be
isolated from the gas supply piping system by closing
its individual manual Shut-off valve during any pressure
t e s t i n g  o f  t h e  g a s  s u p p l y  p i p i n g  s y s t e m  a t  t e s t
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12and13.
FIGURE 12. GAS PIPING WITH
FLEXIBLE CONNECTOR.
FIGURE 13. GAS PIPING WITH ALL
BLACK IRON PIPE TO GAS CONTROL.