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  5. Use And Care Manual

TANKLESS CECOH160DV Use And Care Manual

Manual is about: 94% CONDENSING

Summary of CECOH160DV

  • Page 1

    94% condensing tankless water heater ap15897 (03/11) printed in usa *allmodelsavailablefornaturalgas(n)or propanegas(p)usage. Donotdestroymanual.Pleaseread carefullyandkeepinasafeplace forfuturereference. Certified r directventmodels rheem/ecosense crtgh-95dv* crtgh-84dv* cecoh200dv* cecoh160dv * ru...

  • Page 2

    Importantsafetyinformation safety precautions ..................................................................... 2–8 productinformation product information ........................................................................ 8 specifications ......................................................

  • Page 3: Important Safety Information

    Safety 3 important safety information d a n g e r flammables flammable vapors water heater has a main burner flame. The main burner flame: 1. Which can come on at any time and 2. Will ignite flammable vapors. Vapors: 1. Cannot be seen, 2. Are heavier than air, 3. Go a long way on the floor and 4. Ca...

  • Page 4: Water Supply Safety

    4 important safety information water supply safety dangers: •watertemperaturesettings –safetyandenergyconservation arefactorstobeconsideredwhen selectingthewatertemperature settingofawaterheater’sremote control.Watertemperaturesabove 125°f(52°c)cancausedeathor severeburnsfromscalding.Besure toreadan...

  • Page 5

    5 important safety information warnings: • the installationofgaspipingmustconformtolocal utilitycompanyrequirementsand/orintheabsenceof localcodes,usethelatesteditionofnationalfuelgas code(nfgc),ansiz223.1/nfpa54,orcan/csab149.1, naturalgasandpropaneinstallationcode. •installagaspressureregulatorint...

  • Page 6

    6 important safety information beforeoperatingthiswaterheater,besuretoreadand followtheinstructionsonthelabelpicturedbelowandall otherlabelsonthewaterheater,aswellasthewarnings printedinthismanual. Failuretodosocanresultinunsafeoperationofthewater heater,resultingindeath,personalinjury,orpropertydam...

  • Page 7: Electrical Safety

    7 important safety information electrical safety danger: shockhazard–makesurethe electricalpowertothewaterheaterisofftoavoid electricshockthatwillresultindeathorseriouspersonal injury. Warnings: •foryoursafety,theinformationin thismanualmust befollowedtominimizetheriskoffire,explosion,or electricsho...

  • Page 8: For Your Records

    8 important safety information general installation and maintenance safety warnings: • thiswaterheatermustbeinstalledinaccordance withtheseinstructions,localcodes,utilitycompany requirementsand/orintheabsenceoflocalcodes, usethelatesteditionoftheamericannational standard/nationalfuelgascode(nfgc),an...

  • Page 9

    9 product information product information 30 3 / 8 " (772 mm) 27 5 / 8 " (702 mm) 3 3 / 8 " (86 mm) 5 1 / 2 " (140 mm) 6 1 / 4 " (159 mm) 17 7 / 8 " (454 mm) 18 5 / 8 " (473 mm) 9 3 / 4 " (248 mm) 2 1 / 4 " (59 mm) 5 1 / 2 " (140 mm) 6 1 / 8 " (156 mm) 2 1 / 8 " (54 mm) 3 7 / 8 " (98 mm) 2 7 / 8 " (...

  • Page 10: Specifications

    10 product information specifications brand 157kbtumodels 199.9kbtumodels rheem ecosense ruud reliance paloma crtgh-84dv*andcrtgh-84x* cecoh160dv*andcecoh160x* rhcgh160dv* cphh-25rdv*andcphh-25rof* crtgh-95dv*andcrtgh-95x* cecoh200dv*andcecoh200x* crutgh-95dv*andcrutgh-95x* rhcgh200dv* cphh-32rdv*an...

  • Page 11: General Descriptions

    11 product information general descriptions typical direct-vent water heater (shown without venting) product information remote control with power switch to hot water faucet(s) drain valve water filter cold water supply shut-off valve *note: a flexible drain tube can be used to suitable drain to sui...

  • Page 12: (No Venting Required)

    12 product information typical outdoor water heater (no venting required) remote control with power switch to hot water faucet(s) drain valve water filter air inlet hard-wire flue terminal cold water supply shut-off valve power supply cord (not supplied) union union manual gas supply line shut-off v...

  • Page 13: D A N G E R

    13 use instructions using your water heater warning: flammablevaporscanbe drawnbyaircurrentsfromsurroundingareasto thewaterheater.Vaporscanignitecausingdeath, personalinjury,orproductdamage. •donotstoreoruseflammableorcombustible materials(gasoline,paintthinner,adhesives, solvents,newspapers,rags,mo...

  • Page 14

    14 use instructions using your water heater maximumwatertemperatureoccurswhilethe waterheaterburnerison.Todeterminethewater temperature: turnonthehotwaterfaucetandplaceathermometer inthewaterstream. Notice: watertemperatureatthefaucetmay varydependingontheseasonandthelengthofpipe fromthewaterheater....

  • Page 15

    15 caring for your water heater waterheaterinspections ventingsystem (directventonly) the ventingsystemshouldbeinspectedperiodicallyto ensurealloftheventsectionsaresecureandairtight. Qualifiedservicepersonnelarefamiliarwithvent systeminspections. Warning: donotoperatethewater heateriftheventsystemsh...

  • Page 16

    16 caring for your water heater burner itisrecommendedtheburnerbeannuallyinspectedby aqualifiedservicetechnician. Danger: shockhazard–removingthe frontcoverpanelexposesyoutoliveelectricity. Electricshockwillcausedeathorseriouspersonal injury. Remove6screwsandtheunitcoverpanel. Turnonahotwaterfaucet....

  • Page 17

    17 caring for your water heater careandcleaning danger: shockhazard–makecertain powertothewaterheaterisoffbeforeremoving protectivecoverforanyreason.Electricshockwill causedeathorseriouspersonalinjury. Warning: combustiblematerials, suchasclothing,cleaningmaterials,orflammable liquids,mustnotbeplace...

  • Page 18

    18 caring for your water heater caution: donottaporforcethefilter duringremoval.Thiscandeformand/ordamagethe filter. Unscrewthewaterfilterfromthebaseofthecold waterinletlineandcarefullyslideitoutoftheline. Cleanthewaterfilterunderrunningwater.To removeseveresedimentanddirt,useasoftbrush. Caution: do...

  • Page 19

    19 caring for your water heater preventivemaintenance warning: failuretoperformroutine preventivemaintenancecanpreventthewater heaterfromoperatingproperly.Improperoperation cancausecarbonmonoxidedangers,excessive watertemperatures,andotherpotentiallyhazardous conditionsresultingindeath,personalinjur...

  • Page 20

    20 care instructions caring for your water heater drainingthewaterheater warning: failuretofollowthesedraining instructionscancauseseriouspersonalinjuryfrom scaldingand/orproductdamage. Turnoffthewaterheaterbypressingthepower on/offbuttononthecontrolpanel. Closethegasshut-offvalve(s). Atleast10secon...

  • Page 21

    21 care instructions caring for your water heater caution: evenwhendrainedproperly,a smallamountofwaterwillremaininthewaterheater. Incoldweatherconditions,thiswatercanfreeze. Ifthishappens,allowthedefrostprotectiononthe waterheateratleast30minutestomeltthefrozen water.Thewaterheaterwillnotworkproper...

  • Page 22

    22 caring for your water heater drainingthewaterheater(cont.) standarddrainmethod serviceisolatorvalvekitsmaybepurchasedfromthe manufacturer,distributor,orplaceofpurchase.The kitsincludetwofull-portisolationvalvestobeused intheinletandoutletwaterlines.Thesekitsprovide a meansforfulldiagnostictesting...

  • Page 23

    23 caring for your water heater vacationandextendedshutdown warning: failuretodrainthewater heatercancauseseriouspersonalinjuryfromscalding and/orproductdamage. Ifthewaterheateristoremainidleforanextended periodoftime,thepowerandwatertotheheater shouldbeturnedoff. Thewaterheaterandpipingshouldbedrai...

  • Page 24

    24 care instructions caring for your water heater problem possiblecause solution waternothotenough. 1. Thetemperaturemaybesettoolow. 1. Increasethetemperaturesettingat theremotecontrol. 2. Thegasvalveisnotcompletelyopened. 2. Checkandcompletelyopenthegasvalve. 3. Gassupplypressureislow. 3. Contactyo...

  • Page 25

    25 care instructions caring for your water heater serviceerrorcodechart yourwaterheaterhasanelectronicdiagnosticsystem builtintoit.Whenthewaterheaterfindsaproblem,it displaysanerrorcodeintheleddisplayontheremote control.Thefollowingchartliststheerrorcodesalong withtheirpossibleproblemandsolution.Usi...

  • Page 26

    26 errorcode possiblecause solution 1l waterheaterhasbuildupoflimedeposits. Contactadealerorqualifiedservicetechni- cian. 05 airintakeorventexhaustopeningmaybe blocked. Removeanyblockage.(airintakerequires12 in.[30cm]ofclearance.) theventpipesontheventterminationmay notbeconnectedproperly. Contactad...

  • Page 27: Installation

    Installation instructions for the contractor installation.

  • Page 28

    28 installation instructions exhaust vent pipe air intake pipe 0" min. (0 mm) 0" min. (0 mm) 0" min. (0 mm) 12" (300 mm) standardscompliance thiswaterheatermustbeinstalledinaccordancewith theseinstructions,localcodes,andutilitycompany requirements. Intheunitedstateswherelocalcodesarenot available,us...

  • Page 29

    29 installation instructions general •everyventorairintakepipepenetrationofaflooror ceilingshouldbesealed. •failuretoinstallandproperlyventthewaterheater totheoutdoorsasoutlinedonpages34through46 canresultinunsafeoperation. •longhotwaterlinesshouldbeinsulatedtoconserve waterandenergy. •thewaterheate...

  • Page 30

    30 installation instructions general productinspection •visuallyinspectthewaterheaterforanypossible damage. •checktheratingplateonthewaterheatertomake surethewaterheaterwasdesignedtobeusedwith thesuppliedtypeofgas(naturalorlp). •verifythatallincludedsuppliedpartsarepresentas shown. Waterheaterinstal...

  • Page 31

    31 installation instructions general notice: thenationalfuelgascode(nfgc)andcan/csab149.1mandateamanualgasshut-offvalve. Seenfgc/b149.1forcompleteinstructions.Localcodesorplumbingauthorityrequirementsmayvaryfromthe instructionsordiagramsprovidedandtakeprecedenceovertheseinstructions. Typicalinstalla...

  • Page 32

    32 general installation instructions waterheaterinstallation(cont.) typicalinstallationof outdoorwaterheater (noventingrequired) thiswaterheaterisforoutdoor installationonly. *note: a flexible drain tube can be used to suitable drain to suitable drain to hot water faucet(s) drain valve cold water su...

  • Page 33

    33 general installation instructions mountingthewaterheater caution: reinforcementofthewallis requiredincasethewallisnotstrongenoughto holdthewaterheater.Failuretodosocouldresultin personalinjuryand/orproductdamage. Themountinglocationforthewaterheatershould allowforeasyaccessandoperation. Thewaterh...

  • Page 34

    34 installation instructions ventingfordirect-ventwaterheater danger: failuretoproperlyventthewater heatertotheoutdoorsasoutlinedinthisventing sectionwillresultindeathorseriouspersonalinjury. Toavoidtheriskoffire,explosion,orasphyxiation fromcarbonmonoxide,neveroperatethewater heaterunlessitisproper...

  • Page 35

    35 installation instructions venting notice: touse2-inchventpipe,areducing adapterorbushingwillberequired. Warning: tousecategoryiiistainlesssteel,apropertransition partwillberequiredtopreventfluegasfromleaking. Dependingonthesizeofpipethatischosenfor ventingthewaterheater,itmightbenecessarytouse af...

  • Page 36

    36 ventingfordirect-ventwaterheater(cont.) inthecommonwealthof massachusetts thecommonwealthofmassachusettsrequirescompliance withregulation248cmr4.00and5.00forinstallationof through-the-wallventedgasappliancesasfollows: 5.08:modificationstonfpa–54,chapter10 (1)revisenfpa–54section10.5.4.2byaddingas...

  • Page 37

    37 installation instructions horizontalventterminallocation outside walls fixed closed fixed closed operable operable v v v v v v x x v v interior wall vent terminal air supply inlet area where terminal is not permitted b b a j i b m m f c k h v v d e b l g a x venting.

  • Page 38

    38 installation instructions ventingfordirect-ventwaterheater(cont.) location u.S.Installation requirements 1 canadianinstallation requirements 2 a=clearanceabovegrade,veranda, porch,deck,orbalcony. 12in.(30cm) 12in.(30cm) b=clearancetowindowordoorthatmay beopened. • 6in.(15cm)forwaterheaterslesstha...

  • Page 39

    39 venting installation instructions horizontalventconsiderations warning: moistureinthefluegaswill condenseasitleavestheventterminal.Incold weatherthiscondensatecanfreezeontheexterior wall,undertheeaves,andonsurroundingobjects. Somediscolorationtotheexteriorofthebuilding istobeexpected.However,impr...

  • Page 40

    40 venting installation instructions ventingfordirect-ventwaterheater(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 horizo...

  • Page 41

    41 installation instructions horizontalventinstallation(cont.) fastenerswillvarydependingonthewalltype. Forparticleboardor compositesheathing,use 4hollowwallanchors.The anchorsshouldbeatleast 1/8in.(0.3cm)indiameter andtheappropriatelengthfor thesheathingthickness. Forplywoodorsolidwood sheathingorm...

  • Page 42

    42 venting installation instructions ventingfordirect-ventwaterheater(cont.) alternativehorizontalventinstallations exhaust vent pipe air intake pipe inspection access panel (optional) inspection access panel (optional) ceiling downward slope towards termination 1" from wall is recommended exhaust v...

  • Page 43: Vertical Vent Installation

    43 installation instructions vertical vent installation warning: improperventinstallationcan resultindeath,personalinjury,productdamage,and/ orpoorperformance. Notices: •onlyrheem-approvedandulcs636approved terminationandpartsmustbeusedduring installation. •maintaintherecommendedairspaceclearance to...

  • Page 44

    44 venting installation instructions vertical vent terminal location a, b 12" min. (300 mm) vent pipe through roof optional the followingchartwithdiagramsdetailstheminimumdimensionalinformationneededtodeterminetheproper locationoftheverticalventterminalfordirect-ventindoortanklesswaterheaters: locat...

  • Page 45

    45 installation instructions adjustable roof flashing support clamp upward slope support hanger air intake pipe exhaust vent pipe condensate drain optional standardverticalventtermination to suitable drain venting.

  • Page 46

    46 installation instructions support hanger adjustable roof flashing support clamp upward slope air intake pipe exhaust vent pipe minimum clearance 18 inches above roof condensate drain alternativeverticalventtermination ventingfordirect-ventwaterheater(cont.) alternativeverticalventterminationkitsa...

  • Page 47: Thermal Expansion

    47 installation instructions caution: thiswaterheatermustonly beusedwiththefollowingwatersupplyconditionsto preventproductdamageandoperationfailure. •clean,potablewaterfreeofcorrosivechemicals, sand,dirt,orothercontaminates. •inletwatertemperaturesabove32°f(0°c),butnot exceeding120°f(49°c). •donotre...

  • Page 48: Water Supply Installation

    48 plumbing installation instructions watersupply water supply installation notices: •useonlyteflontapeonallcoldandhotwater connections. •ifthewaterflowresistanceofashowerheadis toohigh,theburnerinthewaterheaterwillfailto ignite.Keepallshowerheadscleanfromdebristhat couldcauseadditionalpressuredrop....

  • Page 49

    49 installation instructions opentheshut-offvalveinthecoldwaterinletline tocheckthewaterflowthroughthewaterheater. Closetheshut-offvalveandremove,clean,and replacethewaterfilter. Notices: •besuretoconnectthecoldwaterinletandthe hotwateroutletasshownonthewaterheater.If reversed,thewaterheaterwillnotf...

  • Page 50: Relief Valve

    50 plumbing installation instructions watersupply(cont.) relief valve anewpressure-reliefvalve,complyingwiththe standardforreliefvalvesandautomaticgasshut-off devicesforhotwatersupplysystems,ansiz21.22/ csa4.4,mustbeinstalledatthehotwateroutlet connectionofthewaterheaterduringinstallation. Localcode...

  • Page 51: Condensate Drainage

    51 installation instructions warnings: •whenpipeinsulationisnotratedfortheappropriate weatherconditions,installelectricheattracingor equivalenttopreventfreezingofthepipes. •donotinsulateorblockdrainvalveonthehotoutlet fitting. •ifpipesareallowedtofreeze,thewaterheaterand thepipesmaymalfunctionorleak...

  • Page 52: Gas Supply Connections

    52 gas supply installation instructions gas supply connections warning: donotattempttoconvert thiswaterheaterforusewithadifferenttypeofgas otherthanthetypeshownontheratingplate.Doing socouldresultindeath,personalinjury,explosionor fire,productdamage,and/orpooroperatingconditions orperformance. Notic...

  • Page 53: Gas Piping

    53 installation instructions gas piping pipe-sizingprocedure–example thegassupplymustbecapableofhandlingtheentire gasloadatthelocation.Gaslinesizingisbasedon gastype,thepressuredropinthesystem,thegas pressuresupplied,andgaslinetype.Forgaspipe sizingintheunitedstates,refertothenationalfuel gascode,nf...

  • Page 54: Gas Supply Installation

    54 gas supply installation instructions gas supply installation installthemanualgasapplianceshut-offvalveto thegasconnectionatthewaterheater.Theshut- offissuppliedwiththewaterheater. Installagroundjointunionoransidesign-certified semi-rigidorflexiblegasapplianceconnectorto theopenendofthemanualgasap...

  • Page 55: Leak Testing

    55 installation instructions leak testing warning: neveruseanopenflameto testforgasleaks,becausedeath,personalinjury, and/orpropertydamagecanresult. Thewaterheateranditsgasconnectionsmustbe leak-testedatnormaloperatingpressuresbeforethe unitisplacedinoperation.Thesetestsshouldalso includeallfactoryc...

  • Page 56: Gas Supply

    56 electrical installation instructions gas supply (cont.) electrical wiring danger: shockhazard–beforeservicing thewaterheater,turnofftheelectricalpowertothe waterheateratthemaindisconnectorcircuitbreaker. Failuretodosowillresultindeathorseriouspersonal injury. Warning: fieldwiringconnectionsand el...

  • Page 57: Wiring Diagram

    57 installation instructions wiring diagram fl ame r od 2 Électr ode de dÉtection de fl amme 2 31-98419 2 neutr alizer wa ter le vel electr ode r r Électr ode de nivea u d’ea u de neutr alisant 2 1 p g rÉsist ance ver t/ja une g/y : green/ yell ow , ac 120v o: or ange , or ange usu all y disc onnect...

  • Page 58: Location

    58 electrical installation instructions remote control selection and location warning: fieldwiringconnectionsand electricalgroundingmustcomplywithlocalcodesor, intheabsenceoflocalcodes,withthelatestedition ofthenationalelectricalcode,ansi/nfpa70,orin canada,canadianelectricalcode,can/csac22.1, part1...

  • Page 59

    59 installation instructions remote control installation warning: fieldwiringconnectionsand electricalgroundingmustcomplywithlocalcodesor, intheabsenceoflocalcodes,withthelatestedition ofthenationalelectricalcode,ansi/nfpa70,orin canada,canadianelectricalcode,can/csac22.1, part1. Notices: •remotecon...

  • Page 60: Electrical Wiring

    60 electrical installation instructions connectingtheremotecontroltothewaterheater: ensurethatthepowertothewaterheaterhasbeen disconnected. Loosentheonescrewlocatedontheremotecontrol connectioncover.Theconnectioncoverismadeof whiteplastic. Notice: donotremovefrontpanel. Remotecontrolwiresareconnecte...

  • Page 61: Insulation Blankets

    61 installation instructions insulation blankets ingeneral,insulationblanketsforexternaluseon gaswaterheatersarenotnecessary.Thepurposeof aninsulationblanketistoreducethestandbyheat lossfromthewaterheater’sstoragetank.Sincethese waterheatersdonotstorewater,theyeliminatethe needfortheinsulationblanke...

  • Page 62: Installation Checklist

    62 checklist installation instructions condensatedrainisproperlyinstalled. F.Condensate installation checklist indoorwaterheatersmustbeinstalledindoors. Outdoorwaterheatersmustbeinstalled outdoors. Closetoareaofventilationtermination(indoor models). Protectedfromfreezingtemperatures. Properclearance...

  • Page 63: Piping For Space Heaters

    63 installation instructions piping for space heaters localcodesorplumbingauthorityrequirementsmay varyfromtheinstructionsordiagramsprovidedinthis manual andtakeprecedenceovertheseinstructions. Combinationpotableandspace heatingapplication dangers: •whenthissystemrequireswaterforspaceheatingat eleva...

  • Page 64: Lighting The Water Heater

    64 start/adjust installation instructions lighting the water heater warning: beforeoperatingthiswater heater, be sure to read and follow the instructions on thefollowinglabel,alllabelsonthewaterheater,and the “important safety information” section in this manual.Failuretodosocanresultinunsafeoperati...

  • Page 65: Operating Instructions

    65 installation instructions operating instructions read,understand,andfollowthesafetyinformation listedontheoperatinglabelonpage64andinthe “importantsafetyinformation”sectioninthismanual. Disconnectallelectricpowertothewaterheater. Turnthegasshut-offvalveclockwisetotheoff position.Thisvalveislocate...

  • Page 66

    66 start/adjust installation instructions setting the water temperature warning: improperadjustment, alteration,service,ormaintenancecanresultin death,personalinjury,propertydamage,and/or productdamage. Maximum temperature adjustment by the main remote control (umc–117) danger: watertemperaturesabov...

  • Page 67

    67 installation instructions while“120”isblinking,presstheupanddown adjustmentbuttonsatthesametime.“120”will stopblinking. Presstheupordownadjustmentbuttontosetthe desiredtemperature. Turnonthegasandwatertothewaterheaterby openingtheshut-offvalves. Tolimitmaximumwatertemperaturesetting to120°f(49°c)...

  • Page 68

    68 start/adjust installation instructions minimum temperature adjustment by the main remote control (umc–117, usc1–117, and usc2–117) residentialwaterheatertemperaturescanbeadjusted downto85°f(29°c),whenrequired. Tochangethetemperaturesettingsdownto 85°f(29°c): turnontheremotecontrol. Turnoffthegasa...

  • Page 69

    69 installation instructions high-altitude dip switch adjustments (cont.) printed circuit board (pcb) dip switches 3 dip switch adjustment 3,280 feet (1,000 m) thru 6,560 feet (2,000 m) 5 2 removethefrontcoverpanelonthewaterheater. Finddipswitch2locatedinthetop-rightportionof thepcb.Theswitchlabeled...

  • Page 70: Parts Ordering

    70 parts parts replacement parts ordering warning: foryoursafety,donotattempt to disassemble, repair, or replace any portion of this unit.Referallrepairs,service,and/oradjustmentsto qualified service personnel. Addressallpartsorderstothedistributororstore where the water heater was purchased. All pa...

  • Page 71: Parts Ordering (Cont.)

    71 parts replacement parts ordering (cont.) outdoor gas components ref# description 1 controlboard 2 gasvalve 3 burnerassembly 4 blowermotor 5 burnermanifold 6 gasinletconnector 7 watercontrolbody 8 waterinletconnector3/4" 9 inletwaterfilter 10 hotoutletconnector 11 remotecontrolterminalblock 12 neu...

  • Page 72

    72 notes notes.