background image

 

 

 

 

WARNING 

This product must be installed and 
serviced by a licensed plumber, a 
licensed gas fitter, or a professional 
service technician and/or in accordance 
with all local code. Improper installation 
and/or operation, or installation by an 
unqualified person, will void the warranty. 
 

 

WARNING 

Operation of this unit creates carbon 
monoxide gas and flue gases which can 
cause serious injury 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-H1

 

Instantaneous Appliance 

Installation Manual and Owner’s Guide 

 

 

 
 
 
 
 

 

Flash Appliance

 

Model T-H1 

Suitable for potable water heating and space 

heating 

 
 
 
 

FEATURING 

 

 

ENDLESS HOT WATER 

 

ON DEMAND 

 

COMPACT, SPACE SAVING 

 

ENERGY CONSERVING 

 

COMPUTER CONTROLS 

 

COMPUTERIZED SAFETY 

 

NO PILOT LIGHT 

 

HIGH EFFICIENCY 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Takagi Industrial Co. USA Inc. 

5 Whatney 

Irvine, CA 92618 

Toll Free (888) 882-5244 USA 

Toll Free (877) 877-4935 CANADA 

www.Takagi.com 

 

 

 

 

Summary of Contents for T-H1

Page 1: ...ry 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 H1 Instantaneous Appliance Installation Manual and Owner s Guide Flash Appliance Model T H1 Suitable for potable water heating and space heating FEATURING ENDLESS HOT WATER ON DEMAND COMPACT SPACE SAVING ENERGY CONSERVING COMPUTER CONTR...

Page 2: ...ressure 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 6 WC Propane 2 8 WC Weight 90 lbs Dimensions 29 5 x18 9 x11 8 Ignition Electronic Ignition Electrical Supply AC 120 V NOTE Check the rating plate to ensure this product matches your specifications This appliance is certified for use at altitudes from ...

Page 3: ...ignited the flow rate can be lowered to 0 6 gallons per minute to maintain the appliance 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 appliance Close the tap to turn off your appliance FOR YOUR SAFETY PLEA...

Page 4: ...an cause severe burns instantly or death from scalding The water temperature is set at 122ºF 50ºC from the factory to minimize any scalding risk Before bathing or showering always check the water temperature 8 WARNING Do not use this appliance if any part has been in contact with or been immersed water Immediately call a trained technician to inspect and or service the unit if necessary 9 WARNING ...

Page 5: ...stall 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 A condensation drain must be connected to the neutralizer drain plug 8 Some chemicals used in a beauty salon may affect the flame sensor Appliance may not work properly Pl...

Page 6: ...liance 2 Top of appliance 12 Combustion Air Supply The appliance location must provide enough air for proper combustion and ventilation of the surrounding area See the latest edition of ANSI Standard Z223 1 or any applicable local codes In general these requirements specify that if the unit is installed in a confined space there must be a permanent air supply opening Air Supply from Outside Buildi...

Page 7: ...d to its OFF down position Direct vent dip switch settings 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 appliance 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 loc...

Page 8: ...lue 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 H1 appliance are 1 Place the appliance as close as possible to the vent terminator 2 The vent collar of the appliance must be fastened directly to an unobstructed vent pipe 3 Do not weld the vent pipe to ...

Page 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 in...

Page 10: ... before connecting to the appliance gas inlet Pipe Sizing Example This table below is for Natural gas piping supply straight to the appliance without any tabs to other gas appliances Recommended Gas Pipe Size for T H1 Appliance Example for NG Distance from Gas Meter Pipe Size inches 0 20 3 4 30 80 1 90 200 1 1 4 1 Turn off all electric power to the appliance if service is to be performed 2 Turn th...

Page 11: ...g 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 appliance 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 appliance There is a wire mesh filter within the cold in...

Page 12: ...de The discharge capacity must be at least 199 000 BTU H The discharge piping for the pressure relief valve must be directed so that the hot water cannot splash on anyone or on nearby equipment Attach the discharge tube to the pressure relief valve and run 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 pressu...

Page 13: ...as supply valve to the unit using only your hand to avoid any spark Never use tools If the knob will not turn by hand do not try to force it call a qualified service technician Force or attempted repair may result in a fire or explosion due to gas leaks Be sure to check next to the bottom of the unit because some gases are heavier than air and may settle towards the floor CAUTION IF YOU SMELL GAS ...

Page 14: ...the United States Department of Energy method of testing appliance output the T H1 is rated for 285 gallons per hour GPH or 4 8 gallons per minute GPM when raising the water temperature by 77 F for example from 43 F to 120 F Refer to the following chart of typical household plumbing fixture flow rates to determine what the FLASH T H1 can do in a household application Household Flow Rates Appliance...

Page 15: ...e from 99ºF to 182ºF Please carefully read the instructions prior to installing the TM RE10 as failure to do so could damage the temperature controller and or the appliance which will void the warranty Hot Water Output Temperature Setting With the FLASH T H1 Appliance the output hot water temperature can be adjusted either manually from the main computer board s dipswitches or with the optional re...

Page 16: ... in areas where the temperature will be well below freezing for extended periods of time use the included Extension cable to relocate the internal thermostat located on the cabinet to the outdoors This will sense the ambient air temperature and turn on the internal appliance blocks on to prevent the heat exchanger from freezing CAUTION Only the pipes within the appliance are protected by the anti ...

Page 17: ...installed a combination system a T H1 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 H1 If neither of those remedies start the unit press the lower grey button marked test off on the GFCI inside the unit If the red light above it does not co...

Page 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 ...

Page 19: ...ped 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 appliance 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 any ph...

Page 20: ...children or the infirm without supervised DANGER Hot Appliance 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 appliance 2 In approved...

Page 21: ...water for space heating at temperatures higher 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 ...

Page 22: ...cal codes follow the most recent edition of the National Standard Code ANSI Z21 10 3 or ANSI Z21 13 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 ...

Page 23: ...ure for longer periods of time then it can be installed 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 ...

Page 24: ...g the home as well as helping to prevent the units 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 TV05 Direct Vent Terminator This terminator can be used where a T H1 is going to be vented out through a wall This is a CSA tested Takagi component Connect ...

Page 25: ... 25 Comp Components Diagram Case assembly Neutralizer assembly ...

Page 26: ... 26 Burner assembly ...

Page 27: ... 27 Water way assembly ...

Page 28: ... 28 Computer board assembly ...

Page 29: ...gniter rod 105 Thermo couple 106 Rod fixing plate 107 Rod window 108 Pan screw M4X6 109 Rod cap 110 Flame rod code 111 Igniter code 112 Wire clamp 113 Screw M4X14 114 Damper 115 Manifold 116 Manifold pressure port 117 Joint packing A 118 Joint packing B 119 Gas joint 120 Screw w washer M4X12 121 O ring P18 122 O ring P22 123 Gas proportional valve 124 Gas valve wire 125 Proportional valve wire 126...

Page 30: ...w M4X8 426 O ring P4 427 In thermistor 428 P screw M4X10 429 Stainless heat exchanger in pipe 430 Water inlet 431 Appliance 432 Filter 433 Inlet drain plug 434 O ring P15 435 Screw M4X6 436 Cement appliance 437 Cement appliance fixing plate 438 O ring P6 439 Fastener 8 440 Drain port 441 Pipe drain plug 442 Water outlet 443 Mix thermistor 444 Outlet drain plug 445 O ring P6 446 Screw w washer M4X6...

Page 31: ...re Out Put Hot Water GPM 40 F 50 F 60 F 70 F 40 F 7 3 6 7 6 1 5 6 5 2 4 9 4 6 4 3 4 1 3 9 3 7 3 3 3 1 2 9 2 8 2 7 2 6 50 F 9 2 8 1 7 3 6 7 6 1 5 6 5 2 4 9 4 6 4 3 4 1 3 7 3 3 3 2 3 1 2 9 2 8 60 F 10 2 9 2 8 1 7 3 6 7 6 1 5 6 5 2 4 9 4 6 4 1 3 7 3 5 3 3 3 2 3 1 70 F 10 2 9 2 8 1 7 3 6 7 6 1 5 6 5 2 4 6 4 1 3 9 3 7 3 5 3 3 90 95 100 105 110 115 120 125 130 135 140 150 160 165 170 175 180 ...

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