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  4. 510U Outdoor (T-D2U-OS)
  5. Installation Manual And Owner's Manual

Takagi 510U Outdoor (T-D2U-OS) Installation Manual And Owner's Manual - Specifications

Manual is about: On-Demand Water Heater

Summary of 510U Outdoor (T-D2U-OS)

  • Page 1

    Gas tankless water heater tm suitable for potable water heating and space-heating* * please refer to local codes for space-heating compliance. Featuring • endlesshotwater • on-demandusage • compact,spacesaving • energyconservation • computerizedsafety • nopilotlight • satisfiesthe2012scaqmdrule 1146...

  • Page 2: Contents

    2 page 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 model 110u indoor (t-kjr2u-in) 110u outdoor (t-kjr2u-os) 310u indoor (t-k4u-in) 310u outdoor (t-k4u-os) 510u indoor (t-d2u-in) 510u outdoor (t-d2u-os) natural gas input (operatingrange) btu/h min.:15,000 max.:140,000 min.:15,000 max.:190,000 min.:15,000 max.:199,000 gas connection 3/4"npt wat...

  • Page 5: Introduction

    5 page introduction • thismanualprovidesinformationnecessaryfortheinstallation,operation,andmaintenance ofthewaterheater. • themodeldescriptionislistedontheratingplatewhichisattachedtothesidepanelofthe waterheater. • pleasereadallinstallationinstructionscompletelybeforeinstallingthisproduct. • ifyou...

  • Page 6: Safety Guidelines

    6 page safety guidelines safety definition general 1. Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecenteditionofthenational fuelgascode:ansiz223.1/nfpa54intheusaorcan/csab149.1naturalgasinstallationcode incanada. 2. Properlygroundtheunitinaccordancewithalllocalcodesorintheabsenceofl...

  • Page 7: Installation

    7 page installation general 1. Followalllocalcodes,orintheabsenceoflocalcodes,followthemostrecenteditionofthenational fuelgascode:ansiz223.1/nfpa54intheusaorcan/csab149.1naturalgasinstallationcodein canada. 2. Allgaswaterheatersrequirecarefulandcorrectinstallationtoensuresafeandefficientoperation. T...

  • 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 top back bottom side side front model top bottom front back sides 110uindoor(t-kjr2u-in)* 310uindoor(t-k4u-in)* 510uindoor(t-d2u-in)* 12in. (305mm) 12in. (305mm) 4in.** (102mm) 0.5in. (13mm) 2in. (51mm) 110uoutdoor(t-kjr2u-os) 310uoutdoor(t-k4u-os) 510uoutdoor(t-d2u-os) 36in. (914mm) 12in. (3...

  • Page 10

    10 page 2. Direct-vent conversion kit: 9007667005 (tk-tv10) this kit can be used to convert the water heater from a single vent system to a direct- vent (double vent) (or sealed combustion) system with a 3 in. (76 mm) intake. Install this conversion kit in accordance with the installation instructio...

  • Page 11

    11 page warning for installations for your safety, read before installation: do not install the heater where water, debris or flammablevaporsmaygetintotheflueterminal. Thismaycausedamagetotheheaterandvoidthe warranty. Donothavetheventterminalpointingtoward anyopeningintoabuilding.Donotlocateyour hea...

  • Page 12

    12 page high-altitude installations check the elevation where your water heater is installed. Set dipswitches shown in the table below dependingonthealtitude. Bankofdipswitches 110u (t-kjr2u) and 310u (t-k4u) models computer board warning do not adjust any dipswitches on the upper bank for the 510u ...

  • Page 13: -General-

    13 page venting instructions for indoor models -general- thewaterheatermustbeventedinaccordancewiththesection“ventingofequipment"ofthelatest editionofthenationalfuelgascode:ansiz223.1/nfpa54intheunitedstatesand/orsection7ofthe can/csab149.1naturalgasinstallationcodeincanada,aswellasapplicablelocalbu...

  • Page 14

    14 page -vent length and no. Of elbows- thisisacategoryiiiapplianceandmustbeventedaccordingly.Theventsystemmustbesealedairtight. Allseamsandjointswithout gaskets mustbesealedwithhighheatresistantsiliconesealantorullisted aluminumadhesivetapehavingaminimumtemperatureratingof350°f(177°c).Forbestresult...

  • Page 15: Venting Illustrations-

    15 page venting illustrations- for the 110u indoor (t-kjr2u-in), 310u indoor (t-k4u-in) and 510u indoor (t-d2u-in) models fordetailsoftheoptionalitems,refertotheinstallationmanualforeachoptionalitem. Horizontal installation with direct-vent concentric termination wall direct-vent concentric terminat...

  • Page 16

    16 page -vent termination clearances- canada u.S.A direct-ventandother thandirect-vent direct- vent otherthan direct-vent a clearanceabovegrade,veranda,porch,deck,or balcony 1foot 1foot 1foot b clearancetowindowordoorthatmaybeopened 3feet 1foot 4feetfrombelowor sideopening.1foot fromaboveopening. C ...

  • Page 17: -For Sidewall Terminations-

    17 page -for sidewall terminations- -for rooftop terminations- for multiple sidewall exhaust terminations (e.G. Multi- unitsystems),anexhaustterminationmustbeatleast1 ft.(305mm)awayfromanotherexhausttermination.An exhaustterminationmustalsobeatleast2ft.(610mm) awayfromaninsidecorner.(iftheadjacentwa...

  • Page 18: -General-

    18 page gas supply and gas pipe sizing -general- • theminimumandmaximuminletgaspressuresare: • inlet gas pressures that fall outside the range of values listed above may adversely affect the performance of the water heater. These pressures are measured when the water heater is in full operation. • i...

  • Page 19: -Natural Gas Supply Piping-

    19 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 140 cubic ft./hr for the 110u (t-kjr2u) models, 190 cubic ft./h...

  • Page 20

    20 page -measuring inlet gas pressure- thewaterheatercannotperformproperlywithoutsufficientinletgaspressure.Belowareinstructionson howtochecktheinletgaspressure.This is only to be done by a licensed professional. Water connections allpipes,pipefittings,valvesandothercomponents,includingsolderingmate...

  • Page 21

    21 page -pressure relief valve- thewaterheaterhasahigh-temperatureshutoffswitchbuiltinasastandardsafetyfeature(calleda hi-limitswitch)thereforea“pressure only”reliefvalveisrequired. • thisunitdoesnotcomewithanapprovedpressurereliefvalve. • anapprovedpressurereliefvalvemustbeinstalledonthehotwaterout...

  • Page 22: -Included Accessories-

    22 page temperature remote controller -included accessories- 1. Takeoffthe“back plate”fromtheremotecontrollerwithaflatheadscrewdriver.(fig. A and b) 2. Attachthe“back plate”onthewallwiththetwoprovidedscrews.(fig. B) • this remote controller is not waterproof donotinstallinhightemperatureenvironments...

  • Page 23

    23 page 3. Tightenthetwo"fork terminals"beneaththetwo"remote controller terminal"screwson thebackofthemainbody.(fig. C-1) 4.Cutouttheinletfortheremotecontrollercablefromthebottomofthemainbody.(fig. C-2) 5. Placethe“main body”backonthe"back plate",withthe"remote controller cable"running outofthebotto...

  • Page 24: 510U (T-D2U) Models

    24 page 5. Pulltheremote’swiresthroughtheholeatthebottomofthewaterheater’scasing. 6. Properlyattachtheremote’swirestotheremotecontrollerterminalonthecomputerboard (nopolarity). * do not jump or short-circuit the wires, or computer will be damaged. 7. Replacefrontcoversecurely. 8. Wiresusedfortheremo...

  • Page 25

    25 page easy-link system (available on the 510u (t-d2u) models only) the510u(t-d2u)modelswaterheaterscanbeconnectedwithotherallowableheaters(seethe tablebelow)withcommunicationcablestoworkasamultiple-unitmanifoldsystem. • theeasy-linksystemallowsupto4unitstomanifoldtogether. • acommunicationcable(gr...

  • Page 26

    26 page 2. Selectoneunittobethe“parent” unit. 3. “parent”unit: locatethetwobanksofdipswitchesatthebottomleftofthecomputerboardoftheunitthatyou selecttobethe“parent”unit.Changedipswitchno.1onthelower bank of dipswitches to the on position.Seethecomputerboarddiagrambelow.Donotchangeanydipswitchesonany...

  • Page 27

    27 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") connectorofthe“chil...

  • Page 28

    28 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-linksystem. Case 4: remote controller ...

  • Page 29

    29 page multi-unit system multiple510u(t-d2u)modelscanbecombinedforamulti-unitsystem,alongwiththemulti- unitcontroller(parts9008300005(tm-mc02))andremotecontroller(9008172005(tm-re40)). Each set of multi-unit controller and remote controller can control from 2 units to 20 units forcommercialorreside...

  • Page 30: Applications

    30 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 2 gpm (7.5 l/min) and no more than 4 gpm (15 l/min) through each activated unit in the system....

  • Page 31

    31 page -dual-purpose hot water heating- (domestic and space heating): diagrammaticlayoutofradiantheatinganddomesticwaterheaterpermass.Code. The recirculation pump is to provide no less than 2 gpm (7.5 l/min) and no more than 4 gpm (15 l/min) through each activated unit in the system. • priority con...

  • Page 32: Initial Operation

    32 page initial operation if you smell gas: • donottrytostartthewaterheater. • donottouchanyelectricswitches;donotuseanyphoneinyourbuilding. • immediatelycallyourgassupplierfromaneighbor’sphone.Followthegas supplier’sinstructions. • ifyoucannotreachyourgassupplier,callthefiredepartment. Warning oper...

  • 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 lightstheburner.Donottrytolighttheburnerbyhand. B. Beforeoperatingsmellallaroundthewaterheaterareaforevidenceofleakinggas.Besureto smellnexttothefloorb...

  • Page 35: Danger

    35 page danger vapors from flammable liquids will explode and catch fire causing death or severe burns. Donotuseorstoreflammableproductssuchasgasoline,solventsoradhesivesinthesameroom orareanearthewaterheater. Warning theoutlethotwatertemperatureofthewaterheaterisfactorysetat120°f(49°c). Usethisheat...

  • Page 36: Normal Operation

    36 page normal operation general remote controller theillustrationbelowshowsanexampleofthedisplay.Theexactdisplaymaydifferfromexamples. "hot" button "cold" button "on/off" button pressthe"hot"buttonorthe "cold"buttontosetthehot watertemperature. Whenthestandbyledison,the hotwatertemperaturewillbe di...

  • Page 37

    37 page temperature settings -set temperature- temperature table of remote controller normal operation owner's guide °f 100 105 110 115 120* 125 130 135 140 °c 38 40 43 45 50* 52 55 57 60 a) for 110u (t-kjr2u) and 310u (t-k4u) models °f 100 105 110 115 120* 125 130 135 140 145 150 155 160 165 175 18...

  • Page 38

    38 page additional features -information mode- youcangetsomeinformationaboutthewaterheaterconditionbypressingthe"info"button.Formore information, followtheproceduresbelow: theremotecontrollerhasafunctionthatcanchangeunitsoftemperatureandflowratefrom°fto°cand fromgallonperminutetoliterperminuteandvic...

  • Page 39

    39 page temperature settings on the pcb (without remote controller) thereare2presettemperatures(120°f(49°c)and140°f(60°c))thatyoucanselectfrombychanging thedipswitchsettingsonthecomputerboardwithouttheremotecontroller.Seethetablebelow. Whentheremotecontrollerisinnormaloperation,thesettemperatureofth...

  • Page 40

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

  • Page 41

    41 page maintenance and service • cleanthecold-waterinletfilter.(refertounitdrainingandfiltercleaningsectioninthispage.) • besurethatallopeningsforcombustionandventilationairarenotblocked. • theventingsystemshouldbecheckedannuallyforanyleaks,corrosion,blockagesordamage. • theburnershouldbecheckedann...

  • Page 42: Troubleshooting

    42 page troubleshooting general problem solutions tempera ture and amount of ho t w ater ittakeslongtimeto gethotwateratthe fixtures. • the time it takes to deliver hot water from the water heater to your fixturesdependsonthelengthofpipingbetweenthetwo.Thelonger the distance or the bigger the pipes,...

  • Page 43

    43 page problem solutions w ater he ater unitdoesnotignite whenwatergoes throughtheunit. • istheflowrateover0.5gpm(1.9l/min)?(p.36) • checkforthefilteroncoldwaterinlet.(p.41) • checkforreverseconnectionandcrossconnection. • ifyouusetheremotecontroller,isthepowerbuttonturnedon? • checkiftheinlettempe...

  • Page 44

    44 page error codes -general- • theunitsareself-diagnosticforsafetyandconveniencewhentroubleshooting. • ifthereisaproblemwiththeinstallationortheunit,theerrorcodewillbedisplayedontheremote controller. • consultwiththetableonthefollowingpagesforthedescriptionofeacherrorcode. -single unit installation...

  • Page 45

    45 page -fault analysis of error codes- iftheerrorcodeisdisplayedonthecomputerboardofthewaterheaterorremotecontroller,please checkthefollowing.Afterchecking,consult with the manufacturer. Troubleshooting owner's guide remote green led malfunction description diagnosis 031 onetime incorrectdipswitch ...

  • Page 46

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

  • Page 47: Components Diagram

    47 page components diagram indoor models outdoor models case assembly temperature remote controller 721 001 004 052 003 052 007 002 051 050 052 005 704 002 001 702 704 006 717 components diagram owner's guide.

  • Page 48: Computer Board Assembly

    48 page 510u (t-d2u) models 703 121 705 053 706 704 705 110u (t-kjr2u) and 310u (t-k4u) models 701 705 103 402 402 715 707 715 403 714 709 708 711 705 103 709 402 402 711 707 714 407 408 708 716 716 701 061 computer board assembly surge box assembly components diagram owner's guide.

  • Page 49: Burner Assembly

    49 page components diagram owner's guide burner assembly 113 114 150 057 119 151 118 055 401 401 153 154 053 152 713 056 107 106 108 060 109 111 711 112 052 101 401 116 116 115 110 053 053 062 060 122 053 060 060 104 105 123 708 711 711 117 719 052 055 053 054 102 709 714 063 707 103 062 720 117 bur...

  • Page 50: Water Way Assembly

    50 page components diagram owner's guide water way assembly 463 413 453 451 403 456 460 458 462 450 414 459 454 402 460 456 461 458 404 415 407 454 405 457 406 410 455 408 456 454 460 409 c 452 411 414 451 414 412 058 401 b a b a d 052 059 d c bypass section (510u (t-d2u)models) 510u (t-d2u) models ...

  • Page 51: Parts List

    51 page parts list owner's guide parts list item # description part # 110u, 310u and 510u models t-kjr2u, t-k4u and t-d2u models 001 caseassemblyforindoormodels foroutdoormodels 319143-428 319143-429 ek103 ek111 002 frontcoverfor110uand310uindoor(t-kjr2u-inandt-k4u-in) for110uand310uoutdoor(t-kjr2u-...

  • Page 52

    52 page item # description part # 110u, 310u and 510u models t-kjr2u, t-k4u and t-d2u models 121 122 123 surgeboxplate gasket gasket 319143-176 319143-456 319143-457 ek436 ek127 ek145 150 151 152 153 154 o-ringp18nbr(black) o-ringp20nbr(black) siliconringforoutdoormodels rainprotectionplateinexhaust...

  • Page 53

    53 page item # description part # 110u, 310u and 510u models t-kjr2u, t-k4u and t-d2u models 701 computerboardfor110u(t-kjr2u)models for310u(t-k4u)models for510u(t-d2u)models 319143-469 319143-470 319143-471 ekj6v ek106 ek149 702 703 704 rubbergrommetforindoormodels surgebox 120vacwireforindoormodel...

  • Page 54: Output Temperature Chart

    54 page output temperature chart chartisbasedonproperlysizedgasline 110u (t-kjr2u) models output temperature chart owner's guide 310u (t-k4u) models *whenthesettemperatureis130°f(55 °c)orhigher,maximumflowrateislimitedto8.0gpm. 510u (t-d2u) models output temperature vs. Gpm (max. 8.0 gpm) with vario...

  • Page 55: Limited Warranty

    55 page 1. The manufacturer warrants this product against defects in materials or workmanship as described in this document if installed within the united states or canada. The manufacturer or its authorized service representativewill,atitssolediscretion,repairorreplaceanyfailedordefectivemechanical...

  • Page 56

    56 page • freezedamagethatoccurswithouttakingproperpreventivemeasuresasdescribedintheinstallation manual. • condensatedamageduetoimproperlyinstalledorlackofacondensatetrap(drain). • anyproductnotinstalledincompliancewithallapplicablelocal&provincialcodes,ordinances,and goodtradepractices. • anyprodu...