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T - K2 PARTS LIST

 

1  CASE ASSEMBLY 

46 SCREW 

2  BACK GUARD PANEL ASSEMBLY 

47 SPARK ELECTRODE HOLDER 

3  FRONT COVER 

48 SPARK ELECTRODE 

4  FIXING PLATE 

49 FLAME SENSOR 

5  TRANSFORMER 

50 SCREW 

6  JUNCTION BOX 

51 DAMPER 

7  JUNCTION BOX COVER 

52 WIRE HOLDER 

8  SCREW 

53 SCREW 

9  SCREW (COATED) 

54 MANIFOLD 

10 SCREW 

55 GASKET 

11 SCREW 

56 GASKET 

12 SILICON RING 

57 GAS COUPLING 

13 HEAT EXCHANGER ASSEMBLY 

58 SCREW 

14 HEAT EXCHNAGER FIXING PLATE (BACK) 

59 O-RING 

15 HEAT EXCHANGER FIXING PLATE (FRONT) 

60 IGNITER 

16 SCREW 

61 SCREW 

17 HI-LIMIT SWITCH 

62 IGNITER 

18 SCREW 

63 GAS VALVE UNIT 

19 QUICK RELEASE PLATE 

64 O-RING 

20 O-RING 

65 SCREW 

21 WATER CONTROL VALVE 

66 GAS INLET FIXING PLATE 

22 O-RING 

67 GAS INLET 

23 GASKET 

68 FAN 

24 QUICK RELEASE PLATE 

69 SCREW 

25 QUICK RELEASE PLATE 

70 FAN DAMPER 

26 SCREW 

71 THERMOSTAT 

27 FLOW SENSOR 

72 SCREW 

28 O-RING 

73 SCREW 

29 INLET CONNECTION PIPE 

74 PRESSURE SWITCH 

30 O-RING 

75 SILICON TUBE 

31 INLET THERMISTOR 

76 PRESSURE SWITCH PORTPLATE 

32 O-RING 

77 PRESSURE SWITCH PORT  

33 WATER INLET 

78 POWER DISTRIBUTION PLATE 

34 FREEZE PROTECTION HEATER 

79 GROUND FAULT CIRCUIT INTERRUPTER 

35 SCREW 

80 FUSE BOX 

36 FILTER 

82 COMPUTER FIXING PLATE 

37 INLET DRAIN PLUG 

83 COMPUTER BOARD 

38 SCREW 

84 REMOTE CONTROL CONNECTION 

39 OUTLET DRAIN PLUG 

85 COMPUTER TRANSFORMER 

40 O-RING 

86 SCREW 

41 WATER OUTLET 

87 OVERHEAT CUT-OFF FUSE 

42 OUTLET THERMISTOR 

88 OVERHEAT CUT-OFF FUSE FIXING PLATE 

43 SCREW 

89 FREEZE PROTECTION HEATER FIXING PLATE

44 COMBUSTION CHAMBER 

90 FREEZE PROTECTION HEATER 

45 BURNER ASSEMBLY 

 

 

Содержание T-K1S

Страница 1: ...njury or death In addition if the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or death T K2 Instantaneous Water Heater Installation Manual and Owner s Guide Flash Water Heater Model T K2 Suitable for potable water heating and space heating FEATURING ENDLESS HOT WATER ON DEMAND COMPACT SPACE SAVING ENERGY CONSERVING COMPU...

Страница 2: ... 23 Component Diagram 24 26 Component Diagram 27 Output temperature Chart 28 SPECIFICATIONS Natural Gas Input Min 20 000 Btu Max 185 000 Btu LPG Input Min 19 000 Btu Max 175 000 Btu Gas Connection NPT Water Connections NPT Water Pressure Min 15 psi Max 150 psi Natural Gas Pressure Inlet Min 5 WC Max 10 5 WC LP Gas Pressure Inlet Min 11 WC Max 14 WC Manifold Pressure Natural 2 3 WC Propane 2 5 WC W...

Страница 3: ...flow rate can be lowered to 0 6 gallons per minute to maintain the heater on It is advisable to open further the cold tap rather than decreasing the hot tap to adjust the water temperature As long as you have water gas and electricity you will get an endless flow of hot water Open a hot water tap to turn on your water heater Close the tap to turn off your water heater FOR YOUR SAFETY PLEASE READ T...

Страница 4: ...ter and or gas connections as this will damage the gas valves and can cause severe injury or death Following the diagram below when installing your water heater GENERAL The T K2 Water Heater is an instantaneous tankless water heater designed to supply endless hot water to your entire household and or commercial facility utilizing total efficiency The principle behind the T K2 Water Heater is simpl...

Страница 5: ... install the unit where the exhaust vent is pointing into any opening in a building or where the noise may disturb your neighbors Make sure the vent termination is 4 feet from a doorway or opening to prevent exhaust from entering 7 Some chemicals used in a beauty salon may affect the flame sensor Water heater may not work properly Please consult with Takagi when the water heater is installed in a ...

Страница 6: ...r heater shall be located in an area to maintain the following minimum clearances around the unit Indoor Installation Service Clearances Left side of heater 6 Front Maintenance space 24 Back of heater 1 Right side of heater 2 Top of heater 12 The diagram below details the required clearances around the unit Wall Hanging Installation For a wall mount installation use TK BK01 brackets to securely at...

Страница 7: ...ater heater from firing unless the blower is operating VENTING INSTRUCTIONS General WARNING Improper venting of this appliance can result in excessive levels of carbon monoxide which can result in severe personal injury or death This water heater must be vented in accordance with the section Venting of Equipment of the latest edition of the Natural Fuel Gas Code ANSI Z223 1 and all applicable loca...

Страница 8: ...ay determine if it should be higher depending on the job site condition and applicable codes WARNING Improper installation can cause nausea or asphyxiation severe injury or death from carbon monoxide and flue gases poisoning Improper installation will void product warranty For high altitude installation above 4 500 feet contact Takagi on how to handle this situation General rules for venting the T...

Страница 9: ... corner G Clearance to inside corner H Clearance to each side of center line extended above meter 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 feet 1 foot 4 feet from below or side opening 1 foot from above opening K Clearance to mechanical air supply i...

Страница 10: ...re connecting to the heater gas inlet Pipe Sizing Example This table below is for Natural gas piping supply straight to the water heater without any tabs to other gas appliances Recommend Gas pipe size for T K2 Water Heater Example for NG Distance from Gas Meter Pipe Size inches 0 30 3 4 30 100 1 100 200 1 1 4 TO TURN OFF GAS TO APPLIANCE 1 Turn off all electric power to the water heater if servic...

Страница 11: ...an anti backflow device in the cold water supply line a thermal expansion tank must be installed Contact the water supplier or local plumbing inspector on how to control this situation After installation of the water heater is complete purge the water line to remove all the debris and air from the line Failure to do so may cause damage to the heater There is a wire mesh filter within the cold inle...

Страница 12: ... the end of the tube to within 6 from the floor This discharge tube must allow free and complete drainage without any restrictions If the pressure relief valve installed on the T K2 discharges periodically this may be due to a defective thermal expansion tank or defective pressure relief valve The pressure relief valve must be manually operated periodically to check for correct operation ELECTRICA...

Страница 13: ... 13 Wiring diagrams are also located on the inside panel of the appliance ...

Страница 14: ...t have been under water Once the above checks have been completed follow these steps to turn on your unit 1 Close the manual gas control valve located on the gas line 2 Fully open the manual water control valve on the water supply line 3 Open a hot water tap to verify that water is flowing to that tap Then close the hot water tap 4 Fully open the manual gas control valve installed 5 Turn on the 12...

Страница 15: ...For this freeze prevention 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 covered under the warranty The unit has been rated for temperatures down to 5ºF 15ºC in a wind free environment If you install the water heater in an area that is subject to temperatures including wind chill below 5ºF 15ºC t...

Страница 16: ... Hz circuit and be properly grounded A means for switching on off the 120 VAC power supply must be provided for service reasons Wire the heater exactly as shown in the wiring diagram A green screw is provided in the junction box for grounding connection MAINTENANCE AND SERVICE WARNING Turn off the electrical power supply and close the manual gas control valve and the manual water control valve bef...

Страница 17: ...the unit If the flow is less than 75 GPM the unit will not initiate Check the filter for any debris or damage If you have installed a combination system a T K2 doing both domestic hot water and space heating completely isolate the heating system temporarily to ensure flow is not backfeeding through your heating system to supply the domestic water by passing the T K2 If neither of those remedies st...

Страница 18: ...nt panel of the appliance Electrical Rating 120 VAC 60 Hz 0 8 A Note If any of the original wiring supplied with this appliance must be replaced it must be replaced with appliance wiring material 180c or its equivalent Replacement wires are available through Takagi ...

Страница 19: ...pped 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 leaking gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use an...

Страница 20: ...ng or showering DANGER Hot Water Heater temperature over 125 F can cause severe burns instantly or death from scalding Children disabled and elderly are at the highest risk of being scalded Feel water temperature before bathing or showering Temperature limiting valves are available ask professional person DANGER Keep flammable products 1 Far away from heater 2 In approved containers 3 Tightly clos...

Страница 21: ...than required for other uses a means such as a mixing valve shall be installed to temper the water for those other uses in order to reduce scald hazard potential Water temperature over 125 F can cause severe burns instantly or death from scalds Chemicals such as diluted Glycol can be used for radiant floor Hydro fan coil air or Baseboard heating only Basic System Drawings and Schematics Heating ap...

Страница 22: ...s follow the most recent edition of the National Standard Code ANSI Z21 10 3 Warning This illustration is a concept design only The reference to the 1 8th hole in check is only for the State of Massachusetts There are a wide variety of variations to the application of controls and equipment presented Designers must add all necessary safety and auxiliary equipment to conform to code requirements an...

Страница 23: ...alled in conjunction with a storage tank A pump will be necessary to keep the storage tank water hot We suggest a high head pump of 1 12 hp or greater depending on the system Recirculation This illustration is a concept design only This system will also need a high head pump of 1 12 hp or greater depending on the application situation Pressure relief valve Expansion tank Pump Check valve Cold In H...

Страница 24: ...per prevents the backflow of air through the exhaust vent This is a CSA tested Takagi component This helps prevent harmful exhaust gases from entering the home as well as helping to prevent the unit from freezing in areas where cold air can be blown or drawn into the exhaust system Install this vent damper in accordance with Takagi s installation instructions and any applicable codes 4 TK TV04 Ven...

Страница 25: ...24 Case Component Diagram Computer board ...

Страница 26: ...25 Computer Burner Manifold ...

Страница 27: ...26 Water Way Heat Exchanger ...

Страница 28: ...NG PLATE 22 O RING 67 GAS INLET 23 GASKET 68 FAN 24 QUICK RELEASE PLATE 69 SCREW 25 QUICK RELEASE PLATE 70 FAN DAMPER 26 SCREW 71 THERMOSTAT 27 FLOW SENSOR 72 SCREW 28 O RING 73 SCREW 29 INLET CONNECTION PIPE 74 PRESSURE SWITCH 30 O RING 75 SILICON TUBE 31 INLET THERMISTOR 76 PRESSURE SWITCH PORTPLATE 32 O RING 77 PRESSURE SWITCH PORT 33 WATER INLET 78 POWER DISTRIBUTION PLATE 34 FREEZE PROTECTION...

Страница 29: ...mperature Out Put Hot Water GPM 40 F 50 F 60 F 70 F 40 F 6 1 5 5 5 1 4 7 4 3 4 0 3 8 3 6 3 4 3 2 3 0 2 8 2 5 2 4 2 3 2 2 2 2 50 F 6 9 6 7 6 1 5 5 5 1 4 7 4 3 4 0 3 8 3 6 3 4 3 0 2 8 2 6 2 5 2 4 2 3 60 F 6 9 6 7 6 1 5 5 5 1 4 7 4 3 4 0 3 8 3 4 3 0 2 9 2 8 2 6 2 5 70 F 6 9 6 7 6 1 5 5 5 1 4 7 4 3 3 8 3 4 3 2 3 0 2 9 2 8 90 95 100 105 110 115 120 125 130 135 140 150 160 165 170 175 180 ...

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