1. DL manuals
  2. Takagi
  3. Water Heater
  4. T-H3-DV
  5. Installation Manual And Owner's Manual

Takagi T-H3-DV Installation Manual And Owner's Manual

Manual is about: Condensing Models

Summary of T-H3-DV

  • Page 1

    Gas tankless water heater tm suitable for potable water heating and space-heating please refer to local codes for space-heating compliance. T-h3-dv model / 540h only if you have any questions, please call 1-888-479-8324 warning - do not store or use gasoline or other flammable vapors and liquids in ...

  • Page 2: Contents

    2 page contents contents installation manual specifications .......................................................................................................................... 4 introduction .........................................................................................................

  • Page 3: Installation Manual

    3 page installation manual installation manual congratulations congratulationsandthankyouforchoosingourtanklesswaterheater. Beforeuse,werecommendthatyoureadthroughthissafetymanual carefully.Pleaserefertothebackofthemanualfordetailsaboutthe warranty.Keepthismanualforfuturereference. If you lose the m...

  • Page 4: Specifications

    4 page specifications *275790pa(40psi)oraboveisrecommendedformaximumflow. **themanifoldpressureisthefactorysettingandgenerallyshould not need adjustment. Note: • checktheratingplatetoensurethisproductmatchesyourspecifications. • inaccordancewithcsa4.3,coemissiondoesnotexceed400ppmfornormalinput. • t...

  • Page 5: Introduction

    5 page introduction • this manual provides information necessary for the installation, operation, and maintenance ofthewaterheater. • themodeldescriptionislistedontheratingplatewhichisattachedtothesidepanelofthe waterheater. • pleasereadallinstallationinstructionscompletelybeforeinstallingthisproduc...

  • Page 6: Safety Guidelines

    6 page safety guidelines safety definition general 1. Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecenteditionofcsab149.1 naturalgas,propaneinstallationcode. 2. Properlygroundtheunitinaccordancewithalllocalcodesorintheabsenceoflocalcodes,withcsa standardc22.1canadaelectricalcodepart...

  • Page 7: Installation

    7 page installation general 1. Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecenteditionofcsab149.1 naturalgas,propaneinstallationcode. 2. Allgaswaterheatersrequirecarefulandcorrectinstallationtoensuresafeandefficientoperation. Thismanualmustbefollowedexactly.Readthe“safetyguidelines...

  • Page 8

    8 page included accessories optional items • installation and service must be performed by a qualified installer (for example, a licensed plumber or gas fitter), otherwise the warranty will be void. • the installer (licensed professional) is responsible for the correct installation of the water heat...

  • Page 9: ✓

    9 page maintain all clearances around thewaterheater. Clearances installation installation manual included accessories checkthattheseitemsbelowareincludedwiththewaterheater. Installation manual and owner’s guide communication cable t-h3-dv / 540h only qty: 1 qty: 1 model top bottom front back sides ...

  • Page 10

    10 page the pipe cover protects the plumbing pipes to the water heater from unexpected adjustments. Thispipecoverisfixedtothebottomofthewater heater, which hides the plumbing and improves thevisualaspectsofthewholeinstallationforthe waterheater. 5. 3" ulc s636 pvc concentric termination: th-cvpvc33 ...

  • Page 11

    11 page warning for installations for your safety, read before installation: do not install the heater where water, debris or flammable vapors may get into the flue terminal. This may cause damage to the heater and void the warranty. Donothavetheventterminalpointingtoward any opening into a building...

  • Page 12

    12 page high-altitude installations check the elevation where your water heater is installed. Set dipswitches shown in the table below depending on the altitude. Warning do not adjust any dipswitches on the upper bank for the t-h3-dv / 540h. Installation installation manual note: thedarksquaresindic...

  • Page 13: -General-

    13 page venting instructions -general- t-h3j-dv/240h,t-h3s-dv/340h,andt-h3-dv/540hmodelsmustbeventedinaccordancewiththe section“ventingofequipment"ofthelatesteditionofcsab149.1naturalgasandpropaneinstallation code,aswellasapplicablelocalbuildingcodes. The use of venting materials approved for catego...

  • Page 14

    14 page -dipswitch settings for vent length- -exhaust vent (plastic vent)- these models can be vented with a plastic vent which is made of pvc, cpvc, or polypropylene (temperatureratedupto149°f).Incanada,plasticventingmustbecertifiedtoulcs636standards. Item material canada exhaust pipe and fittings ...

  • Page 15

    15 page • themaximumlengthofexhaustventpipingmustnotexceed21.3m(70ft.)for76mm(3”) venting,whichdependsontheelevationwherethewaterheaterisinstalled.30.5m(100ft.) for102mm(4”)venting(deducting1.5m(5ft.)foreachelbowusedintheventingsystem).Do notusemorethan5elbows.Seethetablebelow. • whenthehorizontalve...

  • Page 16

    16 page 76 mm (3") vent connection diagram from 76 mm (3") to 102 mm (4") vent connection diagram -exhaust vent (stainless steel vent)- this is a category iv appliance and must be vented accordingly. The vent system must be sealed airtight. All seams and joints without gasketsmustbesealedwithhighhea...

  • Page 17

    17 page -stainless steel vent illustrations- • regardingtheclearancesfromtheexhaustterminaltotheairinletoropening,refertothe nextfewpages. • followallventsystemmanufacturer’sinstructionsandalllocalcodes. • do not common vent or connect any vent from other appliances to these models vent. • use102mm(...

  • Page 18

    18 page -vent termination clearances- canada u.S.A direct vent and other than direct vent direct vent other than direct vent a clearance above grade, veranda, porch, deck, or balcony 1 foot 1 foot 1 foot b clearancetowindowordoorthatmaybeopened 3 feet 1 foot 4feetfrombelowor side opening. 1 foot fro...

  • Page 19: -For Sidewall Terminations-

    19 page -for sidewall terminations- -for rooftop terminations- formultiplesidewallexhaustterminations(e.G.Multi-unit systems),anexhaustterminationmustbeatleast305mm (1ft.)awayfromanotherexhausttermination.Anexhaust termination must also be at least 610 mm (2 ft.) away fromaninsidecorner.(iftheadjace...

  • Page 20: -General-

    20 page gas supply and gas pipe sizing -general- • the minimum and maximum inlet gas pressures are: • inlet gas pressure except the ranges in the table above will adversely affect performance. These pressuresaremeasuredwhenthewaterheaterisinfulloperation. • inlet gas pressure must not exceed the abo...

  • Page 21: -Natural Gas Supply Piping-

    21 page -natural gas supply piping- maximumdeliverycapacityofcubicfeetofgasperhourofipspipecarryingnaturalgaswith0.60specificgravity basedonpressuredropof0.5"w.C. Based on energy content of 1,000 btu/cubic ft.: the water heater requires 160 cubic ft./hr for the t-h3j-dv / 240h, 180 cubic ft./hr for ...

  • Page 22

    22 page -measuring inlet gas pressure- thewaterheatercannotperformproperlywithoutsufficientinletgaspressure.Belowareinstructionson howtochecktheinletgaspressure.This is only to be done by a licensed professional. Water connections all pipes, pipe fittings, valves and other components, including sold...

  • Page 23: -Pressure Relief Valve-

    23 page -pressure relief valve- thewaterheaterhasahigh-temperatureshutoffswitchbuiltinasastandardsafetyfeature(calleda hi-limitswitch)thereforea“pressure only” relief valve is required. • thisunitdoesnotcomewithanapprovedpressurereliefvalve. • anapprovedpressurereliefvalvemustbeinstalledonthehotwate...

  • Page 24

    24 page -condensate drain connections- thewaterheaterisahighefficiencycondensingwaterheaterthatproducescondensate(acidicwater). The acidic condensate generated in the secondary heat exchanger can be neutralized by the neutralizer accessory. Case a: if a neutralizer is not required 1. Connecta1/2”fpt...

  • Page 25

    25 page electrical connections 1. Thewaterheaterrequires120 vac, 60 hz electrical power supply that is properly grounded. 2. Theuseofasurgeprotectorisrecommendedinordertoprotecttheunitfrompowersurges. Followtheelectricalcoderequirementsofthelocalauthorityhavingjurisdiction. In the absence of such re...

  • Page 26

    26 page easy-link system (available on the t-h3-dv / 540h indoor only) thet-h3-dv/540hwaterheaterscanbeconnectedwithallowableheaters(seethetablebelow) withcommunicationcablestoworkasamultiple-unitmanifoldsystem. • theeasy-linksystemallowsupto4unitstomanifoldtogether. • acommunicationcable(graycolor)...

  • Page 27

    27 page 2. Select one unit to be the “parent” unit. 3. “parent” unit : locatethetwobanksofdipswitchesatthebottomleftofthecomputerboardoftheunitthatyou select to be the “parent”unit.Changedipswitchno.1onthelower bank of dipswitches to the on position.Seethecomputerboarddiagrambelow.Donotchangeanydips...

  • Page 28

    28 page (c) examples of incorrect settings and /or connections case 1: wrong dipswitch setting on the "parent" unit case 2: wrong connections between the "parent" unit and the "child-1" unit • if you connect the "1" (or "2") connector of the “parent” unit to the “parent" (or "1") connector of the “c...

  • Page 29

    29 page case 3: wrong connections between the "child-1" unit and the "child-2" unit • if you connect the “parent” connector of the “child-1” unit to the “1” connector of the “child-2” unit, the “child-2”unitwilloperateasanindividualunit,andwillnotbepartofthe easy-link system. Case 4: remote controll...

  • Page 30

    30 page multi-unit system multiplet-h3-dv/540hunitscanbecombinedforamulti-unitsystem,alongwiththemulti-unit controller(tm-mc02).Themulti-unitcontrollercancontrol2to20units.Fora20unitsystem, thecomputercanmodulatebetweentheusagesof13,000btu/h(propane)or15,000btu/h (naturalgas)to4.0millionbtu/h. Anind...

  • Page 31: Applications

    31 page applications -space-heating applications- -recirculation- *the recirculation pump is to be controlled by: -dual-set aquastat (recommended w/timer) *the recirculation pump is to provide no less than 7.5 l/min (2 gpm) and no more than 15 l/min (4 gpm) through each activated unit in the system....

  • Page 32: Initial Operation

    32 page initial operation installation installation manual if you smell gas: • donottrytostartthewaterheater. • donottouchanyelectricswitches;donotuseanyphoneinyourbuilding. • immediatelycallyourgassupplierfromaneighbor’sphone.Followthegas supplier’sinstructions. • if you cannot reach your gas suppl...

  • Page 33: Owner'S Guide

    33 page owner's guide congratulations congratulationsandthankyouforchoosingourtanklesswaterheater. Beforeuse,werecommendthatyoureadthroughthissafetymanual carefully.Pleaserefertothebackofthemanualfordetailsaboutthe warranty.Keepthismanualforfuturereference. If you lose the manual, contact the manufa...

  • Page 34: Operating Safety

    34 page operating safety for your safety read before operating a. Thiswaterheaterdoesnothaveapilot.Itisequippedwithanignitiondevicethatautomatically lights the burner. Do not try to light the burner by hand. B. Beforeoperatingsmellallaroundthewaterheaterareaforevidenceofleakinggas.Besureto smellnext...

  • Page 35: Danger

    35 page danger vapors from flammable liquids will explode and catch fire causing death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room orareanearthewaterheater. Warning theoutlethotwatertemperatureofthewaterheaterisfactorysetat49°c(120...

  • Page 36: Normal Operation

    36 page normal operation owner's guide normal operation temperature controller and remote controller theillustrationbelowshowsanexampleofthecontrollers.Theexactdisplaymaydifferfromexamples. "cold" button "hot" button press the "hot" button or the "cold" buttontosetthehotwatertemperature. Stand by le...

  • Page 37

    37 page temperature settings -set temperature- temperature table of controller normal operation owner's guide °c 38 40 43 45 50* 52 55 57 60 °f 100 105 110 115 120* 125 130 135 140 a) for t-h3j-dv / 240h and t-h3s-dv / 340h °c 38 40 43 45 50* 52 55 57 60 63 65 68 70 75 80 85 °f 100 105 110 115 120* ...

  • Page 38

    38 page additional features youcangetsomeinformationaboutthewaterheaterconditionbypressingthe"info" button. For more informationfollowtheproceduresbelow: theremotecontrollerhasafunctionthatcanchangeunitsoftemperatureandflowratefrom°f to °c and from gallon per minute to liter per minuteandviceversa,p...

  • Page 39

    39 page temperature settings on the pcb (without remote controller) thereare2presettemperatures(49°c(120 °f) and 60°c(140 °f))that you can select from by changing thedipswitchsettingsonthecomputerboardwithouttheremotecontroller.Seethetablebelow. When the remote controller is in normal operation, the...

  • Page 40

    40 page flow • thisunitcomesequippedwithheatingblockstoprotectitagainstdamagesassociatedwithfreezing. • forthisfreezeprotectionsystemtooperate,therehastobeelectricalpowertotheunit.Damage totheheatexchangercausedbyfreezingtemperaturesduetopowerlossisnotcoveredunderthe warranty.Incaseswherepowerlosses...

  • Page 41

    41 page maintenance and service • cleanthecold-waterinletfilter.(refertodiagrambelow.) • besurethatallopeningsforcombustionandventilationairarenotblocked. • the venting system should be checked annually for any leaks, corrosion, blockages or damage. • the burner should be checked annually for dust, ...

  • Page 42: Troubleshooting

    42 page troubleshooting general problem solutions tempera ture and amount of ho t w ater it takes long time to gethotwateratthe fixtures. • the time it takes to deliver hot water from the water heater to your fixturesdependsonthelengthofpipingbetweenthetwo.Thelongerthe distanceorthebiggerthepipes,th...

  • Page 43

    43 page problem solutions w ater he ater unit does not ignite whenwatergoes through the unit. • istheflowrateover1.9l/min(0.5gpm)?(p.36) • checkforthefilteroncoldwaterinlet.(p.41) • check for reverse connection and cross connection. • if you use the remote controller and/or temperature controller, i...

  • Page 44

    44 page error codes -general- • theunitsareself-diagnosticforsafetyandconveniencewhentroubleshooting. • if there is a problem with the installation or the unit, the error code will be displayed on the temperature controller and remote controller. • consultwiththetableonthefollowingpagesforthedescrip...

  • Page 45

    45 page -fault analysis of error codes- iftheerrorcodeisdisplayedonthecomputerboardofthewaterheaterorremotecontrollerand/or temperaturecontroller,pleasecheckthefollowing.Afterchecking,consult with the manufacturer. Troubleshooting owner's guide remote green led malfunction description diagnosis 031 ...

  • Page 46

    46 page troubleshooting owner's guide remote green led malfunction description diagnosis 391 twotimes air-fuel ratio rod failure • checkforconnection/breakageofwires(part#709) and/orsootontheafrrod.(part#108) 441 twotimes flowsensorfailure (easy-linksystemonly) • check for connection/breakage of wir...

  • Page 47: Components Diagram

    47 page components diagram case assembly temperature remote controller 724 723 722 056 temperature controller components diagram owner's guide 052 052 003 007 002 050 702 704 008 052 050 052 717 713 004 001 004.

  • Page 48: Computer Board Assembly

    48 page t-h3-dv / 540h t-h3j-dv / 240h and t-h3s-dv / 340h computer board assembly surge box assembly 121 713 703 706 063 709 053 703 710 701 713 103 709 402 707 708 714 721 407 408 701 714 403 715 721 707 722 715 402 402 103 713 708 710 709 716 716 722 402 061 components diagram owner's guide.

  • Page 49: Burner Assembly

    49 page components diagram owner's guide burner assembly 101 104 115 106 107 108 110 109 111 712 112 062 053 053 709 053 401 103 105 065 054 113 114 102 708 119 151 118 055 051 150 057 055 120 711 712 063 117 053 116 062 121 714 719 707 117 manifold assembly burnerassembly t-h3-dv / 540h.

  • Page 50: Water Way Assembly

    50 page components diagram owner's guide water way assembly 402 460 456 461 458 404 417 407 454 405 457 406 410 455 408 458 454 462 c d 052 059 052 409 417 water outlet section water inlet section 403 456 460 458 462 b a bypass section (t-h3-dv / 540h) d a e 459 454 411 412 058 f 413 452 450 414 451...

  • Page 51: Parts List

    51 page parts list item # description part # 001 002 case assembly for indoor models front cover for t-h3j-dv / 240h and t-h3s-dv / 340h for t-h3-dv / 540h ek159 ek187 ek158 003 004 005 006 007 intake air port assembly bracket junction box powersupplycordassembly backguardpanel ek170 ek162 ek190 ek1...

  • Page 52

    52 page parts list owner's guide item # description part # 116 117 118 119 pressureport combustion chamber tube gas inlet gas inlet ring ekk2d ex019 ek117 ex00d 120 121 igniter plate surge box plate ek194 ek163 150 151 o-ringp18nbr(black) o-ringp20nbr(black) ezp18 ek042 401 heat exchanger assembly f...

  • Page 53

    53 page parts list owner's guide item # description part # 462 463 464 465 fastener“16-25a” fastener“6-15” flat heater drain tube ekk39 ex12k ek217 ek218 466 cold pipe for t-h3j-dv / 240h and t-h3s-dv / 340h for t-h3-dv / 540h ek219 ek220 467 468 469 470 stainless heat exchanger out pipe header conn...

  • Page 54: Output Temperature Chart

    54 page output temperature chart chart is based on properly sized gas line t-h3j-dv / 240h output temperature chart owner's guide t-h3s-dv / 340h *when the set temperature is 130 °f(55 °c)orhigher,maximumflowrateislimitedto8.0gpm. T-h3-dv / 540h output hot w at er gpm output temperature vs. Gpm (max...

  • Page 55: Limited Warranty

    55 page 1. Generaltermsoflimitedwarranty: thislimitedwarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhichvaryfromstateto state.Themanufacturerwillhonorthewarrantytotheoriginalretailbuyerattheoriginallocationonly,andit is not transferable. This warranty covers only failed mechanical ...

  • Page 56

    56 page (3)limitedlaborcoverage •themanufacturerwillprovideforreasonablelaborchargesassociatedwithwarrantyrepairs orreplacementswithinone(1)yearfromthedateofpurchase.Themanufacturerwillonlypay directly to the service provider. •warrantyservicemustbeperformedbyanauthorizedservicerepresentative.Alisto...

  • Page 57: Notes

    57 page notes.

  • Page 58: Notes

    58 page notes.

  • Page 59: Notes

    59 page notes.

  • Page 60

    60 page if you have any questions, please call 1-888-479-8324.