Takagi T-H3M-IN/OS Manuel d'utilisateur

Gas Tankless Water HeaterTMSuitable for potable water heating and space-heating Please refer to local codes for space-heating compliance.If you have a

10 PageInstallaonInstallaon ManualVENTING INSTRUCTIONSFor the 140 Indoor (T-H3M-DV) model-General-• Improper venting of this appliance can result

11 PageInstallaonInstallaon Manual-Exhaust vent (ABS, PVC, CPVC, or polypropylene vent)-The Indoor model can be vented with ABS, PVC, CPVC, or poly

12 PageInstallaonInstallaon Manual-DIPswitch settings for Vent length-Ventlength Two-pipeandSinglepipe5to50ft.(DEFAULT)No. 6 : ONNo. 7 : OFF

13 PageInstallaonInstallaon Manual-Intake and Exhaust Venng Illustraons-TypicalinstallaonsusingABS,PVC,CPVC,orpolypropylenevent2inchve

14 PageInstallaonInstallaon Manual3inchventinstallaon1. Connecta3"elbowdirectlyonthe intake vent collar of the water heater.2. 

15 PageInstallaonInstallaon ManualTwo-pipe,direct-vent Singlepipewithroom-airintakeTerminationsWallHangerHangerRoofRoof flashingFire stopTermi

16 PageInstallaonInstallaon ManualVentconneconsfortwo-pipe4" stainless steel vent straight pipeExhaust vent collar (Female)Intake vent col

17 PageInstallaonInstallaon Manual-Vent terminaon clearances-Canada U.S.ADirect-vent and other than Direct-ventDirect- ventOther than Direct-vent

18 PageInstallaonInstallaon ManualFor multiple sidewall exhaust terminations, an exhaust termination must be at least 1 ft. (305mm) away from anoth

19 PageInstallaonInstallaon Manual<Forrooopterminaons>Exhaust and/or direct-vent sidewall terminations should be at least 2 ft. (610 mm)

2 PageInstallation ManualContentsCONTENTSInstallation ManualSPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20 PageInstallaonInstallaon ManualGAS SUPPLY AND GAS PIPE SIZING-General-• The minimum and maximum inlet gas pressures are:• Inlet gas pressures

21 PageInstallaonInstallaon Manual-Natural Gas Supply Piping-Maximum delivery Capacity of Cubic Feet of Gas per Hour of IPS Pipe carrying Natural G

22 PageInstallaonInstallaon Manual-Measuring inlet gas pressure-The water heater cannot perform properly without sufficient inlet gas pressure. Be

23 PageInstallaonInstallaon ManualFollow all code requirements of the local authority on condensate neutralizers and whether or not they are requir

24 PageInstallaonInstallaon ManualWARNINGDischarge condensate(acidic water) inaccordancewith all localcodesandcommonsafetypractices.Co

25 PageInstallaonInstallaon ManualFollow the electrical code requirements of the local authority having jurisdiction. In the absence of such requir

26 PageInstallaonInstallaon ManualFig.BBack plate3-1/4 inchesAttach the screwsCut out the partition with pliersMain bodyFig.AMain bodyTwistPress

27 PageInstallaonInstallaon ManualRemote controller terminalsFig.C-1Two fork terminalsRemote controller cableInlet for the remote controller

28 PageInstallaonInstallaon ManualHIGH-ALTITUDE INSTALLATIONSCheck the elevation where your water heater is installed. Set DIPswitches shown in th

29 PageInstallaonInstallaon Manual• Inordertopurgeairinwaterpipeswithinaclosed-loopsystem,anairventand air separator should be

3 PageInstallaon ManualInstallation ManualCONGRATULATIONSCongratulations and thank you for choosing our tankless water heater. Before use, we recomm

30 Page• Priority Control Devices such as a flow switch, an Aquastat or other electronic controller can be used to prioritize the domestic water s

31 PageIFYOUSMELLGAS:• Do not try to start the water heater.• Do not touch any electric switches; do not use any phone in your building.• Immed

32 PageOPTIONAL ITEMS# Model140Indoor(T-H3M-DV)140Outdoor(T-H3M-OS)1.Temperature Remote Controller✓Included with the water heater2.4-inch Backflow Pr

33 PageUsed when terminating direct-vent (sealed combustion) systems, with Indoor models that require a 3 in. (76 mm) intake and a 3 in. (76 mm) exha

34 PageOwner's GuideCONGRATULATIONSCongratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read

35 PageWARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or lo

36 PageDANGERVaporsfromflammableliquidswillexplodeandcatchfirecausingdeathorsevereburns. Do not use or store flammable products suc

37 PageDISPLAY OF THE CONTROLLERTheillustraonbelowshowsanexampleofthedisplayofthecontrollers.Theexactdisplaymaydierfromexamples.

38 PageOperation Screenonthecontroller1.Turn on the 120 VAC power supply to the water heater.2.Press the "ON/OFF" button on the controll

39 PageOperation Screenonthecontroller1.Inlet water temperature will be displayed on the controller by pressing the "INFO"button.2.Outl

4 PageInstallation ManualSpecificationsSPECIFICATIONS*40 psi (0.27 MPa) or above is recommended for maximum flow.** The Manifold Pressure is the fact

40 PageFLOW• This water heater comes equipped with heating blocks to protect it against damage associated with freezing.• For this freeze protectio

41 PageMAINTENANCE AND SERVICE• Clean the cold-water inlet filter. (Refer to the Unit Draining and Filter Cleaning Section on this page.)• Be sure

42 PageDESCALING THE UNITHard water is a severe problem for the copper coils inside heat exchangers. Heat exchanger failure dueto scale buildup from

43 PageTROUBLESHOOTINGGENERALPROBLEM SOLUTIONSTEMPERATUREandAMOUNTOFHOTWATERIt takes a long time to get hot water at the fixtures.• The time it

44 PagePROBLEM SOLUTIONSWATERHEATERUnit does not ignite when water goes through the unit.• Is the power on the water heater?• Is the gas on?• Is

45 PageError codeGreen LEDErrorcodeindicatoronthetemperaturecontrolleraachedtoasurfaceofthe140Indoor(T-H3M-DV)modelandtheremotec

46 PageRemoteGreenLEDMalfunctiondescriptionDiagnosis031One Time Incorrect DIPswitch setting• Check the DIPswitch settings on the PCB (Part #701).10

47 PageRemoteGreenLEDMalfunctiondescriptionDiagnosis391Two Times Air-fuel ratio rod failure• Check for connection/breakage of wires (Part #708) and

48 PageCaseassemblyTemperatureremotecontrollerIndoor modelOutdoor model702704052052052006704005052004004001007003050002001714002Temperaturecontro

49 PageComputerboardassemblySurgeboxassembly709710103708402707701711716402407408060713706forIndoor modelforOutdoor model701710703120053705712712C

5 PageIntroductionInstallation ManualINTRODUCTION• This manual provides information necessary for the installation, operation, and maintenance of th

50 PageBurnerassembly101401116053117103105064054104115053053106107108708110061109111709112 053114113707102053120709150057055 062053 7111170551191511

51 PageWaterWayassemblyCDDC461452412153152417466 06441105841345005341540305246746306345545846241345145141345141441445105240945746045340805945441041

52 PagePARTS LISTItem# DescriptionPart#140model T-H3Mmodel001 Case assembly for Indoor modelCase assembly for Outdoor modelN/AN/AEK450EK451002 Fr

53 PageItem# DescriptionPart#140model T-H3Mmodel150151152153154O-ring P18 NBR (Black)O-ring P20 NBR (Black)Silicon ring for Outdoor modelExhaust

54 PageItem# DescriptionPart#140model T-H3Mmodel701 Computer board 320273-369 EK480702703704Rubber grommetSurge box120 VAC wire for Indoor model

55 PageLIMITED WARRANTYApplicationType HeatExchanger Parts Labor(1)Single Family Domestic Hot Water 15(2)(3)5 1Commercial or Multi-Family Domestic

88A161•  Freezedamagethatoccurswithouttakingproperpreventivemeasuresasdescribedintheinstallation manual.•  Con

6 PageSAFETY GUIDELINESSAFETY DEFINITIONIndicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.DAN

7 PageInstallation ManualINSTALLATIONGENERAL1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the Natio

8 PageInstallaonInstallaon Manual• Installationandservicemustbeperformedbyaqualifiedinstaller(forexample,alicensedplumberorgasfit

9 PageInstallaonInstallaon ManualINCLUDED ACCESSORIESCheck that these items below are included with the water heater.InstallationManualandOwner’s