Installation / Operation Instruction Manual

2 238‐50320‐00B 9/15

WARNING
DO NOT install Duravent Polypro venting components with any other manufacturer’s vent components.
Duravent
components must be used exclusively throughout the entire venting system from the water heater
coupling or vent
connection to the outside wall or ceiling near the vent terminal location.
This supplement is intended only for additional information for installing Duravent Polypro single wall venting system
and the instruction manual supplied with the water heater must be followed for the detailed information provided for
the
venting system installation.

Step1: ThoroughlyreadandunderstandtheventingsectionoftheInstallationandOperatingInstructionManualthat
wassuppliedwiththewaterheaterbeforedeterminin gthelocationofthewaterheaterandtheventterminals.Locate
thewaterheaterfortheshortestpracticalventlengthtotheoutside. Measurethetotalventingdistancerequiredto
reachtheoutsidewallorroof. Determinethediameteroftheventingcomponents
touseforthelengthofventpipe
(andcombustionairsupplyfordirectventmodels)requiredbyreferringtotheventingtablesintheinstructionmanual
forthemaximumventlengthforeachdiameterpipesize. Obtainallthenecessaryventingsystemcomponentsforthe
installation.

Step2:Before
installation,inspecteachventcomponentfordamagemakingsurethegasketsforeachcomponentare
fullyintactandinundamagedcondition. Donotattempttoinstallorrepairdamagedcomponents.Ifagasketis
damaged,theseareavailablefromthesupplierofDuraVentcomponents. Donotusegasketsfromanother
manufactureranddonottrytorepairthegasket.

Step3:ADuraVentPVCto
Polypropyleneadapter(referredbyDuraVentasApplianceAdapters,2PPS‐AD,3PPS ‐AD,or 
4PPS‐AD)mustbeusedtoconnectintoaPVCcouplingortee(CommercialandResidentialPowerDirectVentairintake
connections),condensateelbow(HighEfficiencyCommercialCondensingmodels)ortheexhaustoutletadapterfor
CommercialPowerVentandResidentialPowerVentmodels.Tomaketheinsertionofthegasketedfittings
intothe
couplingeasier,rotatethejointsslightlyandusewatertolubricatethegaskets. DONOTuseanyotherkindoflubricant.

Wetthegasketsurfaceandinsideofthecouplingusingyourfingerorwetpapertowelandinsertthemaleendofthe
adapterwiththeexterior
gasketintothecoupling,condensateelboworexhau stoutletadapterconnection. Ifalarger
ventdiametersizeistobeused,usetheappropriatelysizedreducercouplingfirstonthewaterheaterintakeorexhaust
ventconnectionasdetailedintheinstallationmanualsuppliedwiththewaterheat er. Seethe
followingphotos.



HighEfficiencyCondensingCommercialModels:Usetheappropriateprimerandcement(refertoventingsectionof
instructionmanualwithwaterheater)forcementingaPVCcoupling(notsuppliedwithwaterheater)totheendofthe
PVCairintakepipeconnection.Usingyourfinger,wetwithwaterthemalegasketedendoftheDuraVentPVCto
PolyProadapterandfullyinsertintotheairintakecoupling. Loosen
theDuraVentadapterconnectorclamp(PPS‐PAC)
andinstalloverthePVCcoupling. Seefollowingphotos.
WARNING
Use only water for lubricating the gaskets and pipe ends to allow easy insertion. DO NOT use any other kind of
lubricant, since deterioration of the gasket may result, which may allow dangerous flue gases to leak into the room.
If the vent pipe needs to be disassembled after the gasket has dried, wet the joint thoroughly to loosen the
connection.