6 J‐S180F/J‐S199F
Consideraonofcareforyourwaterheatershould
includeevaluaonofwaterquality.
Waterthatcontainschemicalsexceedingthelevels
belowaffectanddamagetheheatexchanger.
Replacementoftheheatexchangerduetowater
qualitydamageisnotcoveredbythewarranty.
MaximumLevel
TotalHardness Upto200mg/L
Alumin
um* Upto0.2mg/L
Chlorides* Upto250mg/L
Copper* Upto1.0mg/L
Iron* Upto0.3mg/L
Manganese* Upto0.05mg/L
pH* 6.5to8.5
TDS(TotalDissolved
Solids)*
Upto500mg/L
Zinc* Upto5mg/L
DetermineInstallaonLoc a on
Environment
Airsurroundingthewaterheater,venng,andvent
terminaon(s)isusedforcombusonandmustbe
freeofanycompoundsthatcausecorrosionof
internalcomponents.Theseincludecorrosive
compoundsthatarefoundinaerosolsprays,
detergents,bleaches,cleaningsolvents,oilbased
paints/varnishes,andrefrigerants.Theairinbeau
ty
shops,drycleaningstores,photoprocessinglabs,and
storageareasforpoolsuppliesoencontainsthese
compounds.Thereforeitisrecommendedthat
outdoormodelsbeusedfortheselocaonswhere
possible.
Thewaterheater,venng,andventterminaon(s)
shouldnotbeinstalledinanyareaswheretheairmay
containth
esecorrosivecompounds.Ifitisnecessary
forawaterheatertobelocatedinareaswhichmay
containcorrosivecompounds,thefollowing
instruconsarestronglyrecommended.
IMPORTANTCONSIDERATIONSFOR:
Indoor/InternalWaterHeaters
• DONOTInstallinareaswhereairforcombuson
canbecontaminatedwithchemicals.
• Beforeinstallaon,considerwhereairhasthe
abilitytotravelwithinthebuildingtothewater
heater.
• Wherepossible,installthewaterheaterina
sealedclosetsothatitisprotectedfromthe
potenalofcontaminatedindoorair.
• Chemicalsthatarecorrosiveinnatureshouldnot
bestoredorusednearthewaterheater.
Outdoor/ExternalWaterHeatersandVent
TerminaonsofIndoor/InternalWaterHeaters
• Installthewaterheaterasfarawayaspossible
fromexhaustventhoods.
• Installasfarawayaspossiblefromairinlet
vents.Corrosivefumesmaybereleasedthrough
theseventswhenairisnotbeingbroughtin
throughthem.
• Chemicalsthatarecorrosiveinnatureshouldnot
bestoredorusednearthewaterheaterorvent
terminaon.
Damageandrepairduetocorrosivecompoundsin
theairisnotcoveredbywarranty.
WaterQuality
*Source:Part143NaonalSecondaryDrinkingWater
Regulaons
Ifyouliveinanareathatisknowntohavehardwater
orthatcausesscalebuild‐upyoumusttreatyour
waterand/orflushtheheatexchangerregularly.
Whenscalebuild‐upintheheatexchangerbeginsto
affecttheper
formanceofthewaterheater,a
diagnosccode“LC”willdisplay.Flushtheheat
exchangertopreventdamagetoit.Scalebuildupis
causedbyhardwatersetatahightemperature.
Youmustensurethatclearanceswillbemetandthat
theventlengthwillbewithinrequiredli
mits.
Considertheinstallaonenvironment,waterquality,
andneedforfreezeprotecon.Requirementsforthe
gasline,waterlines,electricalconnecon,and
condensatedisposalcanbefoundintheirrespecve
installaonseconsofthismanual.