1. DL manuals
  2. Takagi
  3. Water Heater
  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 - Danger

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 congratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read through this safety manual carefully. Please refer to the back of the manual for details about the warranty. Keep this manual fo...

  • 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 (operating range) btu/h min.: 15,000 max.: 140,000 min.: 15,000 max.: 190,000 min.: 15,000 max.: 199,000 gas connection 3/4"...

  • Page 5: Introduction

    5 page introduction • this manual provides information necessary for the installation, operation, and maintenance of the water heater. • the model description is listed on the rating plate which is attached to the side panel of the water heater. • please read all installation instructions completely...

  • Page 6: Safety Guidelines

    6 page safety guidelines safety definition general 1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the national fuelgascode:ansiz223.1/nfpa54intheusaorcan/csab149.1naturalgasinstallationcode in canada. 2. Properly ground the unit in accordance with all ...

  • Page 7: Installation

    7 page installation general 1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the national fuelgascode:ansiz223.1/nfpa54intheusaorcan/csab149.1naturalgasinstallationcodein canada. 2. All gas water heaters require careful and correct installation to ensure...

  • Page 8

    8 page • 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 heater and for compliance with all natio...

  • Page 9: ✓

    9 page top back bottom side side front maintain all clearances around the water heater. Clearances model top bottom front back sides 110u indoor (t-kjr2u-in)* 310u indoor (t-k4u-in)* 510u indoor (t-d2u-in)* 12 in. (305 mm) 12 in. (305 mm) 4 in.** (102 mm) 0.5 in. (13 mm) 3 in. (76 mm) 110u outdoor (...

  • 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 flammable vapors may get into the flue terminal. This may cause damage to the heater and void the warranty. Do not have the vent terminal pointing toward any opening into a b...

  • 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. Bank of dipswitches 110u (t-kjr2u) and 310u (t-k4u) models computer board warning do not adjust any dipswitches on the upper bank for the ...

  • Page 13: -General-

    13 page venting instructions for indoor models -general- the water heater must be vented in accordance with the section “venting of equipment" of the latest editionofthenationalfuelgascode:ansiz223.1/nfpa54intheunitedstatesand/orsection7ofthe can/csa b149.1 natural gas installation code in canada, a...

  • Page 14

    14 page -vent length and no. Of elbows- this is a category iii appliance and must be vented accordingly. The vent system must be sealed airtight. All seams and joints without gaskets must be sealed with high heat resistant silicone sealant or ul listed aluminum adhesive tape having a minimum tempera...

  • 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 for details of the optional items, refer to the installation manual for each optional item. Horizontal installation with direct-vent concentric termination wall direct-vent conce...

  • Page 16

    16 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 clearance to window or door that may be opened 3 feet 1 foot 4 feet from below or side openin...

  • Page 17: -For Sidewall Terminations-

    17 page -for sidewall terminations- -for rooftop terminations- for multiple sidewall exhaust terminations (e.G. Multi- unit systems), an exhaust termination must be at least 1 ft. (305mm) away from another exhaust termination. An exhaust termination must also be at least 2 ft. (610 mm) away from an ...

  • Page 18: -General-

    18 page gas supply and gas pipe sizing -general- • the minimum and maximum inlet gas pressures are: • 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 operati...

  • Page 19: -Natural Gas Supply Piping-

    19 page -natural gas supply piping- maximum delivery capacity of cubic feet of gas per hour of ips pipe carrying natural gas with 0.60 specific gravity based on pressure drop of 0.5" 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...

  • Page 20

    20 page -measuring inlet gas pressure- the water heater cannot perform properly without sufficient inlet gas pressure. Below are instructions on how to check the inlet gas pressure. This is only to be done by a licensed professional. Water connections all pipes, pipe fittings, valves and other compo...

  • Page 21

    21 page -pressure relief valve- the water heater has a high-temperature shutoff switch built in as a standard safety feature (called a hi-limit switch) therefore a “pressure only” relief valve is required. • this unit does not come with an approved pressure relief valve. • an approved pressure relie...

  • Page 22: -Included Accessories-

    22 page temperature remote controller -included accessories- 1. Takeoffthe“back plate” from the remote controller with a flat head screwdriver. (fig. A and b) 2. Attachthe“back plate” on the wall with the two provided screws. (fig. B) • this remote controller is not waterproof do not install in high...

  • Page 23

    23 page 3. Tightenthetwo"fork terminals" beneath the two "remote controller terminal" screws on the back of the main body. (fig. C-1) 4. Cut out the inlet for the remote controller cable from the bottom of the main body. (fig. C-2) 5. Placethe“main body” back on the "back plate", with the "remote co...

  • Page 24: 510U (T-D2U) Model

    24 page 5. Pulltheremote’swiresthroughtheholeatthebottomofthewaterheater’scasing. 6. Properlyattachtheremote’swirestotheremotecontrollerterminalonthecomputerboard (no polarity). * do not jump or short-circuit the wires, or computer will be damaged. 7. Replacefrontcoversecurely. 8. Wiresusedfortherem...

  • Page 25

    25 page easy-link system (available on the 510u (t-d2u) model only) the 510u (t-d2u) model water heaters can be connected with other allowable heaters (see the table below) with communication cables to work as a multiple-unit manifold system. • the easy-link system allows up to 4 units to manifold t...

  • Page 26

    26 page 5. Between the “parent” and the “child-1” units: connect the “parent” connector of the “parent” unit to the “1” connector of the “child-1” unit using the supplied linking cable. 6. Between the “child-1” and the “child-2” units: connect the “2” connector of the “child-1” unit to the “1” conne...

  • 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") connector of the “c...

  • 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” unit will operate as an individual unit, and will not be part of the easy-link system. Case 4: r...

  • Page 29

    29 page multi-unit system multiple 510u (t-d2u) models can be combined for a multi-unit system, along with the multi- unit controller (parts 9008300005 (tm-mc02)) and remote controller (9008172005 (tm-re40)). Each set of multi-unit controller and remote controller can control from 2 units to 20 unit...

  • 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 • priority control devices such as a flow switch, an aquastat or other electronic controller can be used to prioritize the domestic water system over the heating system. • follow all local codes, or in the absence of local codes, follow the most recent editionofthenationalstandardcode,ansiz2...

  • Page 32: Initial Operation

    32 page initial operation if 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. • immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • if you cannot reach your gas suppli...

  • Page 33: Owner'S Guide

    33 page owner's guide congratulations congratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read through this safety manual carefully. Please refer to the back of the manual for details about the warranty. Keep this manual for future reference. If yo...

  • Page 34: Operating Safety

    34 page operating safety for your safety read before operating a. This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand. B. Before operating smell all around the water heater area for evidence of l...

  • 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 or area near the water heater. Warning the outlet hot water temperature of the water heater is facto...

  • Page 36: Normal Operation

    36 page normal operation general remote controller theillustrationbelowshowsanexampleofthedisplay.Theexactdisplaymaydifferfromexamples. "hot" button "cold" button "on/off" button press the "hot" button or the "cold" button to set the hot water temperature. When the stand by led is on, the hot water ...

  • 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 °c 38 40 4...

  • Page 38

    38 page additional features -information mode- you can get some information about the water heater condition by pressing the "info" button. For more information, follow the procedures below: the remote controller has a function that can change units of temperature and flow rate from °f to °c and fro...

  • Page 39

    39 page temperature settings on the pcb (without remote controller) there are 2 preset temperatures (120 °f (50 °c) and 140 °f (60 °c)) that you can select from by changing the dipswitch settings on the computer board without the remote controller. See the table below. When the remote controller is ...

  • Page 40

    40 page flow • this unit comes equipped with heating blocks to protect it against damages associated with freezing. • for this freeze protection system to operate, there has to be electrical power to the unit. Damage to the heat exchanger caused by freezing temperatures due to power loss is not cove...

  • Page 41

    41 page maintenance and service • clean the cold-water inlet filter. (refer to unit draining and filter cleaning section in this page.) • be sure that all openings for combustion and ventilation air are not blocked. • the venting system should be checked annually for any leaks, corrosion, blockages ...

  • Page 42: Troubleshooting

    42 page water connections all pipes, pipe fittings, valves and other components, including soldering materials, must be suitable for potable water systems. 1. A manual shutoff valve must be installed on the cold water inlet to the water heater between the main water supply line and the water heater....

  • Page 43

    43 page problem solutions w ater he ater unit does not ignite when water goes through the unit. • is the flow rate over 0.5 gpm (1.9 l/min)? (p. 36) • check for the filter on cold water inlet. (p. 41) • check for reverse connection and cross connection. • if you use the remote controller, is the pow...

  • Page 44

    44 page error codes -general- • the units have self-diagnostic function for safety and convenience when troubleshooting. • if there is a problem with the installation or the unit, the error code will be displayed on the remote controller. • consult with the table on the following pages for the descr...

  • Page 45

    45 page -fault analysis of error codes- if the error code is displayed on the computer board of the water heater or remote controller, please check the following. After checking, consult with the manufacturer. Troubleshooting owner's guide remote green led malfunction description diagnosis 031 one t...

  • Page 46

    46 page troubleshooting owner's guide remote green led malfunction description diagnosis 391 two times air-fuel ratio rod failure • check for connection/breakage of wires (part #709) and/or soot on the afr rod (part #108). 441 two times flow sensor failure (easy-link system only) • check for connect...

  • Page 47: Components Diagram

    47 page components diagram indoor model outdoor model 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) model 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)model) 510u (t-d2u) model wa...

  • 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 case assembly for indoor models for outdoor models 319143-428 319143-429 ek103 ek111 002 front cover for 110u and 310u indoor (t-kjr2u-in and t-k4u-in) for 110u and 31...

  • Page 52

    52 page item # description part # 110u, 310u and 510u models t-kjr2u, t-k4u and t-d2u models 121 122 123 surge box plate gasket gasket 319143-176 319143-456 319143-457 ek436 ek127 ek145 150 151 152 153 154 o-ring p18 nbr (black) o-ring p20 nbr (black) silicon ring for outdoor models rain protection ...

  • Page 53

    53 page item # description part # 110u, 310u and 510u models t-kjr2u, t-k4u and t-d2u models 701 computer board for 110u (t-kjr2u) model for 310u (t-k4u) model for 510u (t-d2u) model 319143-469 319143-470 319143-471 ekj6v ek106 ek149 702 703 704 rubber grommet for indoor models surge box 120 vac wir...

  • Page 54: Output Temperature Chart

    54 page output temperature chart chart is based on properly sized gas line 110u (t-kjr2u) model output temperature chart owner's guide *when the set temperature is 130 °f (55 °c) or higher, maximum flow rate is limited to 8.0 gpm. Output temperature vs. Gpm (max. 6.6 gpm) with various inlet water te...

  • 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 representative will, at its sole discretion, repair or replace any failed or defecti...

  • Page 56

    56 page • freezedamagethatoccurswithouttakingproperpreventivemeasuresasdescribedintheinstallation manual. • condensatedamageduetoimproperlyinstalledorlackofacondensatetrap(drain). • anyproductnotinstalledincompliancewithallapplicablelocal&provincialcodes,ordinances,and good trade practices. • anypro...