Takagi T-H3J-DV, Installation Manual And Owner'S Manual

Page 1: ...pplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer...

Page 2: ...Easy linkSystem 26 Multi unitSystem 30 APPLICATIONS 31 INITIAL OPERATION 32 Owner s Guide OPERATING SAFETY 34 NORMAL OPERATION 36 Temperature controller and Remote controller 36 General 36 Temperatur...

Page 3: ...t 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 you lose the manual contact the manufactu...

Page 4: ...TU h Min 15 000 Max 160 000 Min 15 000 Max 180 000 Min 15 000 Max 199 000 Propane Input Operating Range BTU h Min 13 000 Max 160 000 Min 13 000 Max 180 000 Min 13 000 Max 199 000 Gas Connection 3 4 NP...

Page 5: ...ers is simple This diagram illustrates tankless water heater design concepts only and does not accurately represent the water heater s physical description 1 A hot water tap is turned on 2 Water enter...

Page 6: ...f not avoided could result in minor or moderate injury Safety Guidelines Installation Manual Indicates an imminently hazardous situation which if not avoided will result in death or serious injury DAN...

Page 7: ...g a building refer to p 18 8 Particles from flour aerosols and other contaminants may clog the air vent build up and reduce the functions of the rotating fan cause improper burning of the gas or cause...

Page 8: ...be installed under the water heater in case of leaks WARNING The warranty will not cover damage caused by water quality Only potable water or potable water glycol mixtures can be used with this water...

Page 9: ...Cable T H3 DV 540H only Qty 1 Qty 1 Model Top Bottom Front Back Sides T H3J DV 240H T H3S DV 340H T H3 DV 540H 305 mm 12 in 305 mm 12 in 102 mm 4 in 13 mm 0 5 in 51 mm 2 in 610 mm 24 inches recommende...

Page 10: ...t temperature from the water heater to be adjusted within the range of 38 C to 85 C and it also works as a diagnostic tool that will give a concise error code whenever there is a problem with the unit...

Page 11: ...ning into a building Do not locate your heater in a pit or location where gas and water can accumulate Do not install the water heater vent terminator within 914 mm 3 ft of any air intake or building...

Page 12: ...r board 0 DEFAULT Up to 2 500 ft Up to 5 000 ft Up to 7 500 ft Up to 10 100 ft T H3J DV 240H and T H3S DV 340H No 3 OFF No 4 OFF No 5 OFF No 3 OFF No 4 ON No 5 OFF No 3 OFF No 4 OFF No 5 ON No 3 OFF N...

Page 13: ...rain water from entering into the water heater must be installed Do not common vent or connect any vent from other appliances to the water heater vent General rules for vent terminations Avoid locati...

Page 14: ...OFF No 3 ON No 4 OFF 1 5 to 15 2 m 5 to 50 ft DEFAULT No 6 OFF No 7 OFF No 3 OFF No 4 OFF 15 5 to 30 5 ft 51 to 100 ft OFF ON 1 2 3 4 5 6 7 8 OFF ON 1 2 3 4 5 6 7 8 OFF ON 1 2 3 4 5 6 7 8 9 10 OFF ON...

Page 15: ...ngth 76 mm 3 venting 102 mm 4 venting Elevations up to 3 000 ft Elevations up to 6 000 ft Elevations up to 10 100 ft Elevations up to 10 100 ft 0 21 3 m 70 ft 12 2 m 40 ft 7 6 m 25 ft 30 5 m 100 ft 1...

Page 16: ...on vent this appliance with any other vented appliance Do not terminate vent into a chimney If the vent must go through the chimney the vent must run all the way through the chimney with Category III...

Page 17: ...stallation Diagram Roof Roof Flashing Fire stop Rain Cap 102 mm 4 vent connection Diagram Connect a 102 mm 4 stainless steel vent straight pipe directly on the exhaust and intake vent collar of the wa...

Page 18: ...eter regulator assembly 3 feet I Clearance to service regulator vent outlet 3 feet J Clearance to non mechanical air supply inlet to building or the combustion air inlet to any other application 3 fee...

Page 19: ...th local codes An exhaust termination must be spaced from a wall or surface in accordance with local codes as well In the absence of such a code an exhaust termination must be a horizontal distance of...

Page 20: ...res in excess of 3 5 kPa 1 2 psi The water heater must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping...

Page 21: ...ons of the gas line supplying gas to more than one appliance Ex Point A to Point B add up the cubic ft requirements of the appliances that are being supplied by that section and size to the farthest a...

Page 22: ...ter to replace any damaged parts Do not reverse the hot outlet and cold inlet connections to the water heater This will not properly activate the water heater CAUTION Installation Installation Manual...

Page 23: ...d complete drainage without any restrictions If the pressure relief valve installed on the water heater discharges periodically this may be due to a defective thermal expansion tank or defective press...

Page 24: ...ly 1 Connect a 1 2 FPT X 3 8 MPT Adaptor to the condensate drain port at the bottom of the water heater 2 Connect a Neutralizer to the 3 8 MPT connection of the adaptors There is a flow direction indi...

Page 25: ...ortions of the condensate drain neutralizer and drain tube must be at a lower elevation than the water heater to prevent condensate water from building up inside the heat exchanger Condensate cannot b...

Page 26: ...y Link Connection Procedures 1 Verify the set temperatures of all units within the system Every single water heater must be set to the same set temperature Installation Installation Manual General Eas...

Page 27: ...matically allocates the unit to each water heater in the Easy Link system in accordance with the table below A T H3 DV 540H Computer board B Basic diagram of connections between the Easy Link System u...

Page 28: ...bank of DIPswitches 1 2 3 4 5 6 OFF ON PARENT 1 2 PARENT 1 2 Unless you change DIPswitch No 1 of the PARENT unit to the ON position the system will not work as an Easy Link system The units will oper...

Page 29: ...t control the unit on the system Connecting two PARENT connectors together from two separate units may damage the computer board The communication cable has a female end and a male end so it s impossi...

Page 30: ...s a sample for 3 water heaters The multi unit controller automatically allocates the unit 1 20 to each water heater that is part of the multi unit system In a multi unit system connect the 1 connector...

Page 31: ...sed with non potable water where any chemicals were added to the water heating appliances When the system requires water for space heating at temperatures higher than required for other uses a means s...

Page 32: ...ater Check the GAS and WATER CONNECTIONS for leaks before firing unit for the first time Open the main gas supply valve to the unit using only your hand to avoid any spark Never use tools If the knob...

Page 33: ...this safety manual carefully Please refer to the back of the manual for details about the warranty Keep this manual for future reference If you lose the manual contact the manufacturer or your local d...

Page 34: ...qualified service technician to inspect the water heater and to replace any damaged parts OPERATING INSTRUCTIONS 1 STOP Read the safety information above or in the Owner s Manual 2 Turn off all elect...

Page 35: ...1 Cannot be seen 2 Vapors are heavier than air 3 Go a long way on the floor 4 Can be carried from other rooms to the main burner by air currents Keep flammable products 1 Far away from heater 2 In app...

Page 36: ...r heater stops operating the backlight of the controllers turns off The backlight of the controllers will turn back on once the water heater begins firing again 1 Open a hot water tap 2 Mix cold water...

Page 37: ...ter heater designed to efficiently supply endless hot water without reference to temperature settings NOTICE Operation Screen on the controller Temperature controller Remote controller 1 Turn on the 1...

Page 38: ...played on the screen 4 Press the INFO buttons for at least 3 seconds 5 The set temperature should now be displayed in the alternate unit of measurement EX 100 F EX 38 C Operation Screen on the control...

Page 39: ...with dark squares The dark squares indicate the direction the DIPswitches should be set to WARNING DO NOT adjust the upper bank of DIPswitches for the T H3 DV 540H Turn off the power supply to the wat...

Page 40: ...nnect power to your heater This will keep your unit from freezing and being damaged Normal Operation Owner s Guide Appliance Use Flow rate GPM US L min Lavatory Faucet 1 0 3 8 Bath Tub 4 0 10 0 15 2 3...

Page 41: ...ed technician If repairs are needed any repairs should be done by a licensed technician UNIT DRAINING and FILTER CLEANING Normal Operation Owner s Guide Turn off the electrical power supply and close...

Page 42: ...d Make sure the unit has 120 VAC 60 Hz power supply If you are using the remote controller and or temperature controller is the power button turned on Is the gas supply valve fully open p 32 Is the wa...

Page 43: ...on Make sure the unit is supplied with power NOTICE When the unit has not operated for five minutes or more the display of the controllers turns off to conserve energy Although the controller of the p...

Page 44: ...em not only to show what the error code is but to also indicate which unit within the system has the error code Below is a sample of how the same error code is displayed in an Easy Link System Example...

Page 45: ...Times Ignition failure Check if the Hi limit switch Part 412 is properly functioning Check for connection breakage of wires Part 413 708 709 710 712 burn marks on the computer board Part 701 and or s...

Page 46: ...circuit failure Refer to 111 and 121 error code 721 Six Times False flame detection For indoor models check if condensate drain is installed on the vent collar of the water heater Checkifthereisleaki...

Page 47: ...ge 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 00...

Page 48: ...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...

Page 49: ...ner 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 Man...

Page 50: ...9 417 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 413 452 450 414 451 414 418 416 009 C 453 468 468 052 455 463 455 469 052...

Page 51: ...screw M4x8 Pan screw M4x20 Tap tight screw M4x12 FEZN EW004 EW005 EW018 EKK31 058 059 060 061 Screw M3x6 Screw M4x6 Screw M4x12 Screw M3x6 EW00A EW009 EKK37 EK191 062 063 064 065 Pan screw M4x8 Wire...

Page 52: ...T H3 DV 540H EKK4J EK137 408 Outlet thermistor for T H3J DV 240H and T H3S DV 340H Outlet thermistor for T H3 DV 540H EK207 EKK1A 409 410 411 Water outlet Outlet drain plug Heat exchanger thermistor...

Page 53: ...76 702 703 704 Rubber grommet Surge box 120 VAC wire EX00B EK280 EK146 706 707 708 120 VAC Power ON OFF switch Remote controller wire for T H3J DV 240H and T H3S DV 340H for T H3 DV 540H Gas valve wir...

Page 54: ...is 130 F 55 C or higher maximum flow rate is limited to 8 0 GPM T H3 DV 540H Output Hot Water GPM Output Temperature vs GPM Max 10 0 GPM with Various Inlet Water Temperature Output Hot Water GPM Outp...

Page 55: ...ystem is a system that utilizes either a push button or other type of manual activation as opposed to automatic activation with a temperature sensor or timer to activate the circulation pump An on dem...

Page 56: ...lack of maintenance e g water filter water treatment system vent blockage etc Any product installed in an improper environment e g corrosive dusty chemically contaminated excessive lint etc Freeze dam...

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Page 60: ...60 Page If you have any questions please call 1 888 479 8324...