Owner manual

13
Figure10showstypicalattachmentofwaterpipingtothewaterheater.
Thewaterheaterisequippedwith3/4inchNPTwaterconnections.
NOTE: If using copper tubing, solder tubing to an adapter before
attaching the adapter to the water heater connections. Do not
solder the water lines directly to the water heater connections.
It will harm the dip tube and damage the tank.
T & P Valve and Pipe Insulation (if supplied)
RemoveinsulationforT&Pvalveandpipeconnectionsfromcarton.
FIGURE 11.
Fitpipeinsulationovertheincomingcoldwaterlineandthehotwater
line.Makesurethattheinsulationisagainstthetopcoveroftheheater.
FitT&Pvalveinsulationovervalve.Makesurethattheinsulation
doesnotinterferewiththeleveroftheT&Pvalve.
Secureallinsulationusingtape.
TEMPERATURE-PRESSURE RELIEF VALVE
This heater is provided with a properly certified combination
temperature-pressurerelief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requirementsforReliefValvesforHotWaterSupply
Systems,ANSIZ21.22•CSA4.4,andcoderequirementsofASME.
Ifreplaced,thevalvemustmeettherequirementsoflocalcodes,but
notlessthanacombinationtemperatureandpressurereliefvalve
certiedasindicatedintheaboveparagraph.
The 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inputrateasshownonthemodelratingplate.
Forsafeoperationofthewaterheater,the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.Position
thevalvedownward andprovidetubing sothatanydischarge will
exitonlywithin6inches(15.2cm)above,oratanydistancebelow
thestructuraloor.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,seeFigures10or14.
Novalveorotherobstructionistobeplacedbetweenthereliefvalve
andthetank.Donotconnecttubingdirectlytodischarge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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.
TheDischargePipe:
•Shouldnotbesmallerinsizethantheoutletpipesizeofthevalve,or
haveanyreducingcouplingsorotherrestrictions.
•Shouldnotbepluggedorblocked.
•Shouldbeofmateriallistedforhotwaterdistribution.
•Should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thebuilding.Incoldclimates,itisrecommendedthatthedischarge
pipebeterminatedatanadequatedraininsidethebuilding.
•Shouldnothaveanyvalvebetweenthereliefvalveandtank.
The temperature-pressurerelief valve must bemanually operated
periodically.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,andreplacethe
temperature-pressurereliefvalvewithanewone.