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63
INSTALLATION INSTRUCTIONS
Piping for Space Heaters
Localcodesorplumbingauthorityrequirementsmay
varyfromtheinstructionsordiagramsprovidedinthis
manual andtakeprecedenceovertheseinstructions.
CombinationPotableandSpace
HeatingApplication
DANGERS:
•Whenthissystemrequireswaterforspaceheatingat
elevatedtemperatures(above125°F[52°C]),amixing
ortemperingvalvemustbeinstalledinthehotwater
supplylinetothehouseinordertoreducethescald
hazardpotential.
•Anypipingorcomponentsusedintheinstallationof
thiswaterheaterinacombinationpotableandspace
heatingapplicationmustbesuitableforusewith
drinkingwater.
•Ifthiswaterheaterisinstalledinanapplication
intendedtosupplydomestichotwaterneedsandhot
waterforspaceheatingpurposes,donotconnect
theheatertoanexistingheatingunitorcomponents
ofaheatingsystemthathavepreviouslybeenused
withanondrinkingwatersystem.
Toxicchemicalssuchasthoseusedforboiler
treatmentmaybepresentandwillcontaminatethe
drinkingwatersupplycausingpossiblehealthrisks.
Neverintroducetoxicchemicals,suchasglycoland
thoseusedforboilertreatment,intothissystem.
•Thiswaterheaterisnotapprovedasthededicated
spaceheatingunit.
Thiswaterheatermustbeusedforcombination
applicationswithairhandleronlyandnotforindoor
heatingapplications.
Typical Combination Installation
Air Handler
Space Heater