A.O. Smith 197835-001 Instruction Manual - page 38
38
INSTALLEDINSUITABLEAREA:Toinsuresufficientventilationand
combustionairsupply,properclearancesfromthewaterheatermust
bemaintained.See“FactstoConsiderAboutLocation”section.
Combustible materials such as clothing, cleaning materials, or
flammableliquids,etc.mustnotbeplacedagainstoradjacentto
thewaterheaterwhichcancauseafire.
anode rod InspectIon
Theanoderodisusedtoprotectthetankfromcorrosion.Mosthot
watertanksareequippedwithananoderod.Thesubmergedrod
sacrificesitselftoprotectthetank.Insteadofcorrodingthetank,
waterionsattackandeatawaytheanoderod.Thisdoesnotaffect
thewater’stasteorcolor.Therodmustbemaintainedtokeepthe
tankinoperatingcondition.
Anodedeteriorationdependsonwaterconductivity,notnecessarily
watercondition.Acorrodedorpittedanoderodindicateshighwater
conductivityandshouldbecheckedand/orreplacedmoreoftenthan
ananoderodthatappearstobeintact.Replacementofadepleted
anoderodcanextendthelifeofyourwaterheater.Inspectionshould
beconductedbyaqualifiedtechnician,andataminimumshouldbe
checkedannuallyafterthewarrantyperiod.
teMperature-pressure
relIef valve operatIon
FIGURE 28.
When checking the temperature-pressure relief valve operation,
makesurethat(1)nooneisinfrontoforaroundtheoutletofthe
temperature-pressurereliefvalvedischargeline,and(2)thatthe
waterdischargewillnotcauseanypropertydamage,asthewater
maybeextremelyhot,seeFigure28.
Ifaftermanuallyoperatingthevalve,itfailstocompletelyresetand
continuestoreleasewater,immediatelyclosethecoldwaterinlet
tothewaterheater,followthedraininginstructions,andreplacethe
temperature-pressurereliefvalvewithanewone.
If the temperature-pressure relief valve on the appliance weeps
ordischargesperiodically,thismaybeduetothermalexpansion.
Youmayhaveacheckvalveinstalledinthewaterlineorawater
meterwithacheckvalve.Consultyourlocalwatersupplierora
qualifiedserviceagencyforfurtherinformation.Donotplugthe
temperature-pressurereliefvalve.
draInInG
The water heater should be drained if being shut down during
freezing temperatures. Also periodic draining and cleaning of
sedimentfromthetankmaybenecessary.
1.Setthepowerswitchtothe“OFF”position.
2. CLOSE the cold water inlet valve to the water heater.
3.OPEN a nearby hot water faucet and leave open to allow for
draining.
4.Connectahosetothedrainvalveandterminatetoanadequate
drain.
5.OPENthewaterheaterdrainvalvetoallowfortankdraining.
note: If the water heater is going to be shut down and
drained for an extended period, the drain valve should be
left open with hose connected allowing water to terminate
to an adequate drain.
6.CLOSEthedrainvalve.
7.Followinstructionsinthe“FillingTheWaterHeater”section.
8.Follow the lighting instructions on the label or see “Lighting
Instructions”inthismanualtorestartthewaterheater.