Rheem H95 Direct Vent Indoor Series Use and Care Manual - Page 40

Warning, Caution, Cautions

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INSTALLATION INSTRUCTIONS VentingforDirect-VentWaterHeater(cont.) Wall Plate (recommended) Downward Slope to Outside termination 12" (300 mm) Approximately 4" recommended Exhaust Vent Pipe Air Intake Pipe Inspection Access Panel (Optional) Ceiling Inspection Access Panel (Optional) Venting HorizontalVentInstallation WARNING:Dangeroffireorbodilyinjury -Solventcementsandprimersarehighlyflammable. Provideadequateventilationanddonotassemblenear heatsourceoropenflame.Donotsmoke.Avoidskin oreyecontact.Observeallcautionsandwarningson materialcontainers. CAUTION:Usetanklesswaterheater manufacturer-approvedSchedule40PVC(foamcore isnotpermittedatanytime),Schedule80PVC,CPVC, ABSorUL1738-listedCategoryIIIStainlessSteel. Nootherventmaterialispermitted.ForCanada, installationsmustfollowULCS636forexhaustventing. Joining PipesandFittings Allpipe,fittings,solventcement,primers,and procedures,fortheU.S.,mustconformtoAmerican NationalStandardsInstituteandAmericanSociety forTestingandMaterials(ANSI/ASTM)standards.For Canada,allpipe,fittings,solventcement,primers, andproceduresmustconformtoULC-S636andvent manufacturerspecifications. CAUTIONS: •DoNOTusesolventcementthathasbecomecurdled, lumpy,orthickened. •DoNOTthinsolventcement.Observeshelf precautionsprintedonthecontainers. •Forapplicationsbelow32°F,useonlylower temperature-typesolventcement. •Appropriatesolventandcleanermustbeusedforthe typeofventpipeused(PVC,CPVC,orABS). Cleaner-PrimerandMedium-BodySolvent Cement Alljointsinventpipingmustbeproperlysealed,and werecommendusingthefollowingmaterial: PVCmaterialsshoulduseASTMD-2564-gradecement. CPVCmaterialsshoulduseASTMF-493-gradecement. ABSmaterialsshoulduseASTMD-2235-gradecement (ABSisnotallowedforexhaustventinCanada). CementingJoints 1.Cutpipeendsquare;removejaggededgesand burrs.Chamferendofpipe;thencleanfitting socketandpipejointareaofalldirt,grease,or moisture. 2.Aftercheckingpipeandsocketforproperfit,wipe socketandpipewithcleaner-primer.Applyaliberal coatofprimertoinsidesurfaceofsocketand outsideofpipe. 3.Applyathincoatofcementevenlyinthesocket. Quicklyapplyaheavycoatofcementtothepipe andinsertpipeintofittingwithaslighttwisting motionuntilitbottomsout. 4.Holdthepipefittingfor30secondstopreventthe taperedsocketfrompushingthepipeoutofthe fitting. 5.Wipeallexcesscementfromthejointwitharag. Allow15minutesbeforehandling.Curetimewill varyaccordingtofit,temperature,andhumidity. NOTICES: •Cementmustbefluid;ifnot,recoatwithfresh cement. •Stirthesolventfrequentlywhileusing.Useanatural bristlebrushorthedaubersuppliedwiththecan. Theproperbrushsizeisoneinch. 40

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40
Venting
INSTALLATION INSTRUCTIONS
Venting±for±Direct-Vent±Water±Heater±(cont.)
Exhaust Vent Pipe
Air Intake Pipe
Wall Plate
(recommended)
Inspection
Access Panel
(Optional)
Inspection
Access Panel
(Optional)
Ceiling
Downward Slope
to Outside termination
12"
(300 mm)
Approximately
4” recommended
Horizontal±Vent±Installation
WARNING:
±Danger±of±fire±or±bodily±injury±
–±Solvent±cements±and±primers±are±highly±flammable.±
Provide±adequate±ventilation±and±do±not±assemble±near±
heat±source±or±open±flame.±Do±not±smoke.±Avoid±skin±
or±eye±contact.±Observe±all±cautions±and±warnings±on±
material±containers.±
CAUTION:
±Use±tankless±water±heater±
manufacturer-approved±Schedule±40±PVC±(foam±core±
is±not±permitted±at±any±time),±Schedule±80±PVC,±CPVC,±
ABS±or±UL±1738-listed±Category±III±Stainless±Steel.±
No±other±vent±material±is±permitted.±±For±Canada,±
installations±must±follow±ULC±S636±for±exhaust±venting.
Joining Pipes±and±Fittings
All±pipe,±fittings,±solvent±cement,±primers,±and±
procedures,±for±the±U.S.,±must±conform±to±American±
National±Standards±Institute±and±American±Society±
for±Testing±and±Materials±(ANSI/ASTM)±standards.±For±
Canada,±all±pipe,±fittings,±solvent±cement,±primers,±
and±procedures±must±conform±to±ULC-S636±and±vent±
manufacturer±specifications.
CAUTIONS:
±
•±±
Do±NOT±use±solvent±cement±that±has±become±curdled,±
lumpy,±or±thickened.
•±±
Do±NOT±thin±solvent±cement.±Observe±shelf±
precautions±printed±on±the±containers.±
•±±
For±applications±below±32°F,±use±only±lower±
temperature-type±solvent±cement.
•±±
Appropriate±solvent±and±cleaner±must±be±used±for±the±
type±of±vent±pipe±used±(PVC,±CPVC,±or±ABS).
Cleaner-Primer±and±Medium-Body±Solvent±
Cement
All±joints±in±vent±piping±must±be±properly±sealed,±and±
we±recommend±using±the±following±material:
PVC±materials±should±use±ASTM±D-2564-grade±cement.
CPVC±materials±should±use±ASTM±F-493-grade±cement.
ABS±materials±should±use±ASTM±D-2235-grade±cement±
(ABS±is±not±allowed±for±exhaust±vent±in±Canada).
Cementing±Joints
1.±±
Cut±pipe±end±square;±remove±jagged±edges±and±
burrs.±Chamfer±end±of±pipe;±then±clean±fitting±
socket±and±pipe±joint±area±of±all±dirt,±grease,±or±
moisture.±
2.±±
After±checking±pipe±and±socket±for±proper±fit,±wipe
socket±and±pipe±with±cleaner-primer.±Apply±a±liberal±
coat±of±primer±to±inside±surface±of±socket±and±
outside±of±pipe.±
3.±±
Apply±a±thin±coat±of±cement±evenly±in±the±socket.±
Quickly±apply±a±heavy±coat±of±cement±to±the±pipe±
and±insert±pipe±into±fitting±with±a±slight±twisting±
motion±until±it±bottoms±out.
4.±±
Hold±the±pipe±fitting±for±30±seconds±to±prevent±the±
tapered±socket±from±pushing±the±pipe±out±of±the±
fitting.±
5.±±
Wipe±all±excess±cement±from±the±joint±with±a±rag.±
Allow±15±minutes±before±handling.±Cure±time±will±
vary±according±to±fit,±temperature,±and±humidity.
NOTICES:±
•±±
Cement±must±be±fluid;±if±not,±recoat±with±fresh±
cement.
•±±
Stir±the±solvent±frequently±while±using.±Use±a±natural±
bristle±brush±or±the±dauber±supplied±with±the±can.±
The±proper±brush±size±is±one±inch.±