Whirlpool T-K1S Water Heater User Manual
Contents
1. IGHT BL a a rt IF Wiring Diagram e eraung Gas Supply Piping Check the rating plate to make sure that the unit was built for the type of gas available in the area The gas supply piping should be sized according to the Applicable Plumbing Code for a maximum draw of 190 000 BTUH First determine the effective length of the gas supply line by measuring the actual length of piping and then adding 5 ft for every elbow or to the actual length Use the charts below to determine the pipe diameter necessary to accommodate the BTU demand of the unit If there are more than one gas drawing appliances on the line size according to the maximum amount of BTU demand The gas supply pressures must be within the ranges of the following chart Natural Gas Min 5 WC Supply Pressure Max 10 5 WC Propane Gas Min 11 WC Supply Pressure Max 14 WC Insufficient gas supply pressure can cause the Flash Water Heater to lose efficiency or not work at all WARNING Fire or explosion may result if the maximum supply pressures are exceeded The manifold gas pressure should be at maximum 2 6 WC for natural gas and 3 4 WC for propane Always use approved connectors to connect the unit to the gas line Always purge the gas line of any debris before connecting to the water heater WARNING Conversion of this unit from natural gas to propane or propane to natural gas cannot be done in the field Con2. 11 Propane 3 5 WC MADOR A uyu a tani 11 Outdoor 11 Initiating the Appliance 12 Weight 45 Ibs Initial Operation 12 Space Heating Application 13 Dimensions 24 x 16 5 x 8 Dual Purpose Heating 14 Applications 15 lanition Electronic lanition Storage Tank 15 9 Recirculation 15 Before Operating 16 Electrical Supplv AC 120V LANGE Tr 17 Maintenance 18 KER Troubleshooting eens 18 19 Optional Iltems 20 3285 ena dc NND 20 Inlet gas pressure must not exceed the TBO oss IE 20 above maximum values TR TYO To aa nants 20 e For gas pressures lower than 5 WC for TK TV03 20 natural gas call the manufacturer MERAQ A ia a 20 Parls Diagfam nalen 21 22 Before installing in areas over 4 500 feet Pars Eee 23 above sea level contact the manufacturer Howe 24 for high altitude adjustment instructions e Check the rating plate to insure this product matches your specifications e Takagi USA is constantly improving our products therefore specifications are subject to change without prior notice For Your Safety PLEASE READ THIS MANUAL CAREFULLY AND FOLLOW IT EXACTLY FOR YOUR SAFETY 1 Follow all local codes
3. and flow rate and controls the gas flow and fan speed to maintain a constant output temperature After the burners are ignited the fire on lamp will be lit COMPUTER 0 75 gallons per minute is required to turn the burners on but after the burners are ignited the flow rate can drop to 0 60 gallons per minute without the burners turning off As long as water gas and electricity are connected there will be an endless flow of hot water To turn on vour water heater just open a tap To turn the heater off just close the tap Turning It On To turn on the Flash water heater 1 Open a hot water tap or turn on water demanding appliance 2 Unit will detect flow burners will ignite Fire lamp will light up on the computer 3 If necessary mix in cold water to get a comfortable temperature Oe 39 gt i r l l Turning It Off To turn off the Flash water heater 1 Close the hot water tap or turn appliance off 2 Flow will diminish unit will shut off 3 Fire On lamp will go out 5 HO um Aum P ma estrupesiec all l Temperature The output temperature of the T K1S has been factory set for a maximum 120 F 50 C This is electronically controlled by the computer and can be adjusted with a TK REO1 temperature controller Further adjustment mav be made bv mixing in cold water with the hot to obtain the ideal water temperature The flow rate pos
4. the water line of air and clean the filter before initial operation WARNING Do not reverse the hot outlet and cold supply line connections to the Flash Water Heater Make sure the hot and cold lines are connected as in the FOR YOUR SAFETY section at the front of this manual Pressure Relief Valve An approved pressure relief valve must be installed in any installation with this unit The pressure relief valve must be installed on the hot line out of the unit with no check valves or control valves between the unit and the relief valve It is recommended to install the pressure only relief valve 6 inches away from water flow to prolong the life of the Pressure relief valve The Pressure only relief valve must be rated for 150 PSI and have a discharge capacity of 190 000 BTU Connect the discharge opening of the relief valve to a suitable drain to prevent water damage should discharge occur If the pressure relief valve discharges periodically this may be due to thermal expansion in a closed water supply system Contact the water supplier or local plumbing contractor on how to correct this situation Do not plug the pressure relief valve The line should have no reduced fittings or other restrictions and should allow for complete drainage of valve and line The pressure relief valve should be manuallv operated once a vear to check for correct operation Should overheating occur or the gas supply fail to shut off turn off the
5. 8 69 63 9 567 393 315 267 237 217 196 185 173 162 146 132 112 99 UE SE JE ee Eee 4E X BEE IR ER ART Eee GE eee 1 3307 2299 1858 1559 1417 1275 1181 1086 1023 976 866 787 675 L7 6221 4331 3465 2002 2646 2304 2205 2047 1921 1811 1606 1496 1200 Water Plumbing Follow local guidelines for the length of the plumbing line in order to ensure that there is enough water pressure for all the fixtures on the line First calculate the effective length of the plumbing line bv measuring the total length of pipe and then adding to this 5 for each elbow or tee in the line Use the following chart to determine the total number of fixture units on the line and then compare with the chart at the bottom of this page to find the pipe diameter and water pressure necessary Fixture Unit Per Fixture from UPC Plumbing Fixture Description Whirlpool Bath a Shower 2 Kitchen Sink Install with control valves on the inlet and outlet and use removable unions or connectors to facilitate maintenance or service if necessary m Ww i M t m 1 B E z BP T a j 4 DX If the water heater is installed in a closed water system means shall be provided to control thermal expansion Contact the water supplier or a local Plumbing Contractor on how to control this situation Purge
6. A T K1S Instantaneous Water Heater TAKAGI EE ee p atm ud x a SK f LU A j V S Na am we WA NT arm a on FETA A DENE q i n PB a aW p Flash Water Heater Model T K1S 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 Takagi Industrial Co USA Inc 3 B Goodyear Irvine CA 92618 Toll Free 888 882 5244 www takagi usa com Installation Manual and Owner s Guide FOR VOUR SAFETV This product must be installed bv a Professional Service Technician Licensed Plumber or Gas Fitter when installed in the Commonwealth of Massachusetts and or any other state Warning Operation creates carbon monoxide gas and flue gases which can cause serious injury or death Improper installation and or operation or installation by an unqualified person will void warranty WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or death Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not use any appliance Do not touch any electrical switch do not use any phone in your building Immediately contact your gas supplier from another location F
7. ING In an indoor installation the T K1S must be connected to a Category Ill special gas vent in order to direct the dangerous exhaust byproducts to the outdoors Connect the 4 Category 111 vent pipe to the 4 round collar on the top of the unit WARNING Do not install the unit directly on a combustible surface such as carpeting wood 10 FERT Ma UA ASACAY 2 WENT HOOO MOUNTED FORM FEET ANIMA EM OW gt floors etc If it is necessary to install the unit standing on a surface install a 3 noncombustible base between the unit and the surface Combustible Air Supply The T K1S must be installed in a location where the proper amount of combustible air will be available to it at all times If the unit is installed in a confined space there must be permanent Openings supplying air to the unit If the openings will bring air directly from the outdoors two openings are required and they should be sized to give a minimum free area of one square inch for every 4000 BTUH of the maximum input rating of the unit If the openings will bring air from another indoor area they should be sized to give a minimum free area of one square inch for every 1000 BTUH of the maximum input rating of the unit One of these openings should be within 12 of the ceiling and the other should be within 12 of the floor Exhaust Venting This water heater m
8. Mee BTU io of Takagi Matel Uet Vacuum Beca 4 Eran Lrirect vent Discharge Must Z Compiy with Local ond State Codes Can Nat He Common vented with Other Appllamcs Tempered Water 10 Hans Thermumeter Hol Water Outlet Drain Plug ad Water Inlet Water Filler Panel mal Valves N check Valve tr Inki De Sized Prupech ith Each Application Shall Run 60 Seconds bi Every fi Hours 120 VAC Switch ur Ouilet zz T Haullu Gus Slul Valve distance af 60 171 from water heater ond hearing panel Priority Control Devices It has a capability to make priority system that can be used as a controller flow sensor Aquastat or electronic controller to controlling radiant Hydro or baseboard heating equipments Warning Follow all local codes or in the absence of local codes follow the most recent edition of the National Standard Code ANSI 221 10 3 Warning This illustration is for concept only There are a wide variety of variations to the application of controls and equipment presented applications Designers must add all necessary safety and auxiliary equipment to conform to code requirements and design practice 14 Applications The T K1S can be installed in a variety of plumbing applications which will provide more comfortable domestic hot water Contact Takagi for information on using this unit as a heat source T K1S with Storage Tank Hot Out Cold in
9. NSI NFPA 70 and any local codes In Canada all electrical wiring to the heater should be installed in accordance with the Canadian Electrical Code CSA C22 1 Part 1 and any local codes Do not rely on the gas or water piping to ground the metal parts of the heater CAUTION Label all wires prior to disconnection when servicing controls Wiring error can cause improper and dangerous operation Verify proper operation after servicing e means for switching off the 120 VAC power supply must be provided e Wire the heater exactly as shown the wiring diagram e A green screw is provided in the junction box for the grounding connection aver heat cut off use In trerni shor LITRI kal J L j i freeze protection H thermosta Ni limit thermis stor switch m heater E LM Zt d dic D ll e bose 7 T al K f hesier vct LB riv j ak 4 tt kh P2364 f lawe um e l I f i s Ld dn ntar EL ra 12343678 104 64 65 85 ie uns 4 m S L L li LES k i rz T i 1 3 2S 3 or AZOD SY F EF 2 b om AD N low 24 1 ediustrent LL 1 3 hoe v lve nal Le 15 Il e 5 A g y c conkra lar BLUE TELL Uv OR ARGE we WHITE bi FFE BR SLACK Pas PURPLE
10. Water Heater to freeze and be damaged at temperatures above 5 F 15 C Refer to the sections on Winterizing and the Freeze Prevention Device for more information WARNING Before bathing or showering always check the water temperature Do not leave children or the infirm unsupervised in the shower or bath The water temperature is set at 120 F 50 C from the factory to maximize the amount of hot water you can use Water temperature over 125 F can cause severe burns instantly or death from scalds WARNING Do not use this appliance if any part has been underwater Immediately call a certified and trained technician to inspect and service the unit if necessary WARNING Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance WARNING Do not reverse the water and gas connections this will damage your heater and can cause severe injury or death from scalds Follow the diagram below when installing your Flash water heater Operation General The Flash Water Heater is an instantaneous tankless water heater designed to efficiently supply domestic or commercial hot water The principle behind the Flash water heater is simple Once a hot water tap is opened the Flash s flow sensor detects that hot water is needed and automatically commands the computer to electronically ignite the burners and heat water During operation the computer monitors the water temperature
11. ach your gas supplier call the fire department Use only your hand to turn the gas valve knob Never use tools If the knob will not turn by hand don t try to repair it Call a qualified service technician Force or attempted repair may result in a fire of explosion Do not use this water heater if any part has been under water Immediately call a 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 Owners Manual 2 Turn off all electric power to the water heater 3 Do not attempt to light the burner by hand 4 Turn the gas manual gas valve located on the outside of the unit clockwise to the off position 5 Wait five 5 minutes to clear out any gas If you then smell gas STOP Follow B in the safety information above on this label If you don t smell gas go to next step 6 Turn the manual gas valve located on the outside of the unit counter clockwise O to the ON position 7 Turn on all electrical power to the water heater 8 If the water heater will not operate follow the instructions to Turn Off Gas to water heater and Call your service technician or gas supplier TO TURN OFF GAS TO APPLIANCE Turn off all electric power to the water heater if service is to be performed Turn the manual gas valve located on the outside of the unit clockwise to the off position 16 Flammable Vap
12. d space heating and shall not be connected to any heating system or component s previously used with non potable water where any chemicals were added to the water heating appliances e When the system requires water for space heating at temperatures higher than required for other used a means such as a mixing valve shall be installed to temper the water for those uses in order to reduce scald hazard potential e Water temperature over 125 F can cause severe burns instantly or death from scalds e Chemicals such as diluted Glycol can be used for radiant floor Hydro warm air or Baseboard heating only Basic system drawings and Schematics Heating application only o Radiant Hydro or baseboard LP waier Warning This illustration is for concept only There are a wide variety of variations to the application of controls and equipment presented applications Designers must add all necessary safety and auxiliary equipment to conform to code requirements and design practice For more details contact Technical Department at 888 882 5244 13 Dual purpose hot water heating Domestic and Space Heating Diagrammatic Lavout of Radiant Heating and Domestic Water Heater Cold Inker Check Valve Will Shur Aff Valve Have 1 8 Hole In An Approved Pressure Only Relief Apply Cocrect Thermal Exp Check As Per valve Tic to Locarion approved ty Tank Sare Per Application Maas Code I neal Cocoa and Mual
13. future reference Copies of this manual are available from TAKAGI USA General All gas water heaters require careful and correct installation to ensure safe and efficient operation This manual must be followed exactly 1 Read the For Your Safety section in the beginning of this manual 2 This unit is not capable of being used as a pool or spa heater 3 The regulator is preset at the factory It is computer controlled and should not need adjustment 4 Suitable for potable water heating only Well water or hard water may cause scale problems that will not be covered by the manufacturer s warranty 5 Maintain proper space for servicing Install the unit so that it can be connected or removed easily 6 Install so that the electrical power can be switched off if necessary 7 Avoid installing in an area with high levels of dust sand or debris Particles may clog the air vent reduce fan function or cause improper combustion 8 Do not install the unit where the exhaust vent is pointing into any opening in a building or where the noise may disturb your neighbors Accessories Check that all the parts listed below were included with the unit PARTS NAME SHAPE NUMBER MANUAL 1 WATERS 0 4 SCREWS 4 mum 2 Electrical Connections The T K1S requires a 60 Hz 120 VAC electrical power supply and it should be properly grounded in accordance with the most recent edition of the National Electrical Code A
14. in Canada For outdoor installation purchase a IK TVO4 and install on the top of the unit Locate the water heater in an open unroofed area and maintain the following minimum clearances from combustible and noncombustible materials If this unit is installed under an overhang there must be a 36 clearance from the top of the unit to the overhang and the surrounding area must be open in front and on the sides of the unit 4 A M E WARNING Do not have the flue terminal pointing toward any opening into a building Do not locate your heater in a pit or any location where gas and water can accumulate WARNING Do not install the heater where water debris or flammable vapors may get into the flue terminal This may cause damage to the heater WARNING United States regulations forbid installing the unit within 4 of anv opening into anv building Similar Canadian regulations forbid the unit from being installed within 10 of anv opening into anv building WARNING installation can cause Improper nausea or asphyxiation from carbon monoxide and flue gases which could result in severe injury or death For installation in altitudes above 4 500 feet contact the manufacturer for instructions Indoor Installation Follow all local codes or in the absence of local codes follow the codes for Installation of Gas Burning Appliances National Fuel Gas Code ANSI Z221 23 in USA or CAN CGA B149 1 or 2 in Canada WARN
15. ir i rressum Pet d V ne t ra Mund Hot Water gt gt Hecirculatior gt W Pume mr A The maximum flow rate through the T K1S is 7 5 GPM If it is necessary to achieve higher flow rates for longer periods of time then it can be installed in conjunction with a storage tank A pump will be necessary to keep the water hot We suggest a pump of 1 12 hp or greater depending on the system Recirculation ir A c Press ri Hot Water to House MI Hot Water Return V with without Timer This system will also need a pump of 1 12 hp or greater depending on the application situation FOR VOUR SAFETV READ BEFORE OPERATING WARNING If you do not follow these instructions exactly a fire or explosion mav result causing propertv damage personal injurv or loss of life 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 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 any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions lf you cannot re
16. manual gas control valve to the appliance Pipe Length to the End of Hot Water Line and Recommended Fixture Units Size Pressure Range 30 to 45 PSI Pressure Range 46 to 60 PSI Pressure Range 60 PSI 1 1 Wall Hanging Installation Outdoor Clearances For a wall mount installation use IK BKOT brackets to securely attach the T K1S to the wall Locate the heater as desired but follow all applicable local codes as well as the indoor or outdoor clearances that apply to the installation Piping side Front Maintenance space Floor From Non Combustible Base M ground Back of heater 1 Non piping side in Enclosed Closet Non Piping Side Open Area Standing Installation Top of heater From Overhang If the unit is to be installed standing on a surface adjust the legs so that the unit stands securely and is level legs can be adjusted up to 1 Do not install the unit standing directly on a combustible surface Use a 3 non combustible base Use the included L brackets to connect the unit to a wall to ensure that it does not fall over These brackets will maintain the required 1 clearance between the back of the unit and a combustible surface Wat Mount Br achat CE 222 w Screws A Washer Outdoor Installation Follow all local codes or in the absence of local codes follow the codes for Installation of Gas Burning Appliances National Fuel Gas Code ANSI 2221 23 in USA or CAN CGA B149 1 or 2
17. ollow the gas suppliers instructions If you cannot reach your gas supplier Call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier Table of Contents Specifications Specifications 1 Natural Gas Input Min 15 000 Btu For Your Salei 2 190 000 Btu Ger e 3 Generals MEAN 3 Turning It On 3 LPG Input Min 17 000 Btu Turning KOM o eios 3 Max 190 000 Btu Temperature 3 FloW RENE ds 3 4 Gas Connection 3 NPT Freeze Protection 4 installatot u uyu usia u Et 5 General 5 Water Connections 74 NPT Accessories 5 Electrical Connections 5 Water Pressure Min 15 psi Wiring diagram 6 Max 150 psi Gas Supply Piping 7 Water Plumbing 8 I Pressure Relief Valve 8 Natural Gas Pressure Inlet Min 5 WC Wall Hanging Installation 9 Max 10 5 WC Standing Installation 9 Outdoor Installation 9 10 LP Gas Pressure Inlet Min 11 WC Indoor Installation 10 11 M 14 WC Combustible Air Supply 10 AK Exhaust Venting 11 Manufactured Home Mobile Home Manifold Pressure Natural 2 9 WC 5
18. oor installation Indoor Clearances Front Maintenance suggested 24 space Min 4 Floor Noncombustible base Back of heater Non piping side Top of heater Manufactured Home Installation Mobile Home This appliance must be installed in accordance with the Manufactured Home Construction and Safetv Standard Title 24 CFR Part 3280 and ANSI A119 5 NFPA 501D In addition install in accordance with the following instructions the instructions supplied with any venting local codes utility company requirements for the installation of water heaters in manufactured homes mobile homes and the latest edition of the National Fuel Gas Code ANSI Z221 3 NFPA 50 Locate the heater in an enclosure separating the unit from the internal atmosphere of the manufactured home or trailer All combustion air must be obtained from the outside atmosphere and the flue gases must be discharged directly outdoors through a gas vent There must be no opening from the interior of the home or trailer into the water heater enclosure Indoor Installation Follow indoor installation instructions as set out in an earlier section of this manual except that combustion air must not be taken from the inside of the home or trailer Outdoor Installation Follow outdoor installation instructions as set out in an earlier section of this manual If the unit is to be installed in a recessed area connect a gas vent to the unit which will direct exhaus
19. or in the absence of local codes follow the most recent edition of the National Fuel Gas Code ANSI Z223 1 NFPA 54 in USA or the CGA standard CAN CGA B149 1 or 2 Installation Codes for Gas Burning Appliances in Canada Properly ground the unit in accordance with all local codes or in the absence of local codes with the National Electrical Codes ANSI NFPA 70 in the USA or CSA standard C22 1 Canada Electrical Code Part 1 in Canada Carefully plan where to install your Flash Water Heater Insure that your heater will have enough combustible air proper ventilation and locate your heater where water leakage will not do damage to surrounding areas If there is a possibility of water damage install a suitable drain pan under the unit which will not restrict combustible airflow Check the rating plate for the correct gas type gas pressure water pressure and electrical rating Do not install this unit if these requirements can t be met Rating plate If a problem should occur turn off all hot water taps and turn off the gas Call a trained technician the Gas Company or the manufacturer 6 10 WARNING Do not disconnect the electrical supply if the temperatures will be near freezing The Freeze Prevention Device will only work if the unit has proper electrical power The Freeze Prevention Device is rated for temperatures down to 5 F 15 C in a wind free environment The wind chill factor will cause the Flash
20. or other reproductive harm This product may contain such substances be their origin from fuel combustion gas oil or components of the product itself 17 Maintenance WARNING Turn off the electrical power supplv the manual gas control valve and the manual water control valve before servicing The unit should be checked once a vear or as necessary by a certified and trained technician If repairs are needed the repairs should be done by a certified and trained technician The following systems and parts should be checked at least once a year 1 Venting systems 2 Burners 3 Manual operation of the pressure relief valve to ensure correct operation 4 Periodic cleaning of the water filter refer to figure below 5 Heat exchanger Remove the thermistor and check for a mineral coating A mineral coating on the thermistor requires flushing the heat exchanger with a descaling solution Scale build up will void your warranty and shorten the life of your water heater 18 Troubleshooting Water Isn t Hot Enough The T K1S can burn gas at a maximum input rate of 190 000 BTUH This puts a limit on the possible output temperature and flow capabilities See flow chart on the last page of this manual If the water doesn t seem hot enough compare the flow and temperature that is being attained to the T K1S flow vs temperature chart If the unit is not performing according to the chart first check that the gas sup
21. or this freeze prevention system to operate there has to be electrical power to the unit The freeze prevention devices will not work if the electrical power source is disconnected The unit has been rated for temperatures down to 5 F 15 C in a wind free environment The wind chill factor will cause the unit to freeze at temperatures above 5 F 15 C even if the unit is installed indoors For indoor installation in areas where the temperature will be well below freezing for extended periods of time use the thermostat extension cable to relocate the internal thermostat located on the fan motor to the outdoors This will sense the ambient air temperature and turn the internal heater blocks on to prevent the heat exchanger from freezing For further protection install a TK TV03 backflow prevention kit so that cold air will not backflow into the flue and cause the unit to freeze Do not install the water heater in an area with extremely cold weather This will void your warranty and Takagi Industrial Co USA Inc will not be responsible for any damage that occurs WARNING The pipe heaters are located on the Flash Water Heater only Any hot or cold water pipes located outside of the unit will not be protected Properly protect and insulate these pipes from freezing If the heater will not be in use for a long period of time or if the temperatures will drop below 5 F 157 C with the wind chill factor turn off heater and d
22. ors 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 Keep flammable products Vapors 1 Far away from heater 1 Cannot be seen 2 In approved containers 2 Vapors are heavier than air 3 Tightly closed 3 Go along way on the floor 4 Out of children s reach 4 Can be carried from other rooms to the main burner by air currents WARNING Do not install water heater where flammable products will be stored Read and follow water heater warnings and instructions If owner s manual is missing contact the retailer or manufacturer WARNING The outlet hot water temperature of the T K1S water heater is factory set 120 F WARNING Use this heater at your own risk The set outlet water temperature can cause severe burns instantly or death from scalds Test the water before bathing or showering Do not leave children or the infirm without supervised 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 WARNING California Proposition 65 lists chemical substances known to the state to cause cancer birth defects death serious illness
23. our gas supplier call the fire department 12 Initial Operation 1 STOPI Do not operate without reading the safety information first Switch off the electrical power supply to the heater Do not attempt to light the burner manually Turn the manual gas control valve located on the outside of the unit counterclockwise to the OFF position Wait five 5 minutes to clear out any gas If you then smell gas STOP Follow b in the Initiating the Appliance section above If you do not detect gas proceed to the next step Turn the manual gas control valve located on the outside of the unit clockwise to the ON position Turn on the electrical power to the appliance Turn on any tap and the T K1S will initiate itself If the appliance will not operate follow the instructions in the Turning Off the Gas Supply to the Appliance section following and call a service technician or gas supplier TURNING OFF THE GAS SUPPLY TO THE APPLIANCE Close the manual valve on the gas inlet line Turn off the power supply Manifold pressure tap Space Heating Application The FLASH T K1S can be used for space heating as well as potable heating of hot water applications Ree WARNING IMUT e Toxic chemicals such as used for boiler treatments chemical alcohol glycerol and glycol group will not be introduced into the system when used for potable water and space heating e The FLASH T K1S can be used to supply potable water an
24. ply line is sized properly and that the gas pressure is within the required range If the gas line is okay check the plumbing for mixing valves thermostatic valves scald protection single handled valves or crossed connections If the unit is performing in accordance with the flow chart then it may be undersized for the application If the unit is performing according to the chart the output temperature can be adjusted using the T K1S It Takes Too Long to Get Hot Water The T K1S takes three seconds to ignite and three more to get up to temperature The rest of the time needed for hot water to get to a fixture is due to the length of piping between the water heater and the fixture If the unit seems to be taking longer than six seconds to initiate check the filter and flow sensor for any debris or damage The T K1S Will Not Initiate First check the flow rate through the unit If the flow is not 0 75 GPM or greater the unit will not initiate Check the filter and the flow sensor for any debris or damage Press the lower green button on the inside the unit If the red light above it does not come on then there is a problem with the electrical supply to the unit If that light does come on hit the green reset button above the light and look for the green light on the circuit plate at the top left of the unit If this light is not lit there is a problem with the electrical connection between the GFCI and the circuit pla
25. r can be used where a T K1S is going to be vented out through a wall This is a CSA approved part of the unit Connect a Category Ill Stainless vent pipe from the top of the unit to the backside of this terminator to exhaust flue gases through the wall without a thimble Install vent terminator in accordance with manufacturer s installation instructions and any applicable local codes 3 TK TV03 Vent Damper The TK TVO3 Vent Damper prevents the backflow of air through the exhaust vent This is CSA approved part of the unit This prevent harmful exhaust gases from entering the home as well as helping to prevent the units from freezing in areas where cold air can be blown into the exhaust svstem Install vent damper according to manufacturer s installation instruction and anv applicable codes 4 TK TV03 Vent Cap The IK TVO3 Vent Cap is for outdoor installation with the T K1S water heater The cap is installed on the top of the unit instead of connecting an exhaust vent The cap will prevent any debris that might be in the environment from entering the unit and causing damage or a fire hazard as well as preventing rain or other weather from entering the unit 5 TK BK01 Wall Mounting Brackets The IK BKOT Wall Mounting Brackets allow the T K1S to be installed hanging from a wall heaters if these brackets are used It is not necessary to earthquake strap these If the unit is not going to be mo
26. rain the unit of water This applies to indoor and outdoor installations This will keep the unit from freezing and being damaged Follow these instructions carefully 1 Turn off the power supply to the Flash Water Heater 2 Close manual gas control valve 3 Close manual water shut off valve 4 Open all hot water taps in the house Bathroom kitchen laundry room etc When the water flow has ceased close all hot water taps 5 Have a bucket to catch the water from the units drain plugs Remove the drain plugs to drain the water out of the unit 6 Let drain for 5 minutes 7 Securely screw the drain plugs back into place Follow these steps when it is again safe to use the water heater 1 Make sure all hot water taps are closed and the drain plugs are securely attached 2 Purge the water line of debris 3 Open manual water control valve located on the water supply line 4 Open all the hot water taps to verify water flows to the taps Close hot water taps 5 Open manual gas control valve located on the gas supply line 6 Turn on the power supply to the Flash Water Heater Mara Installation This section is for the installer The installer is responsible for the correct installation of vour Flash Water Heater For Your Safety Only a certified and trained service technician or qualified plumber may service or install your product Please keep this owner s manual in a safe place for
27. sible out of the unit is dependent on the temperature setting chosen Consult the flow charts on the last page of this unit to determine the possible outlet temperature and flow rate combinations WARNING Temperatures above 125 F 52 C can cause severe burns or death from scalding Children the disabled and the elderly are at a high risk of being injured Feel the water temperature before bathing or showering Do not leave children disabled persons or the elderly unsupervised Flow The flow rate through the T K1S is limited to a maximum of 7 5 GPM The temperature setting along with the supply temperature of the water will determine the flow rate the unit puts out Consult the flow charts on the last page of this manual to determine the possible outlet temperature and flow rate combinations Based on the United States Department of Energv method of testing water heater output the T K1S is rated for 242 gallons per hour or 4 0 GPM at a 77 F rise above the inlet temperature Refer to the following chart of tvpical household flow rates to determine what the T KIS can do in a household application Remember that for bathing cold water will be mixed for a comfortable temperature increasing the flow output rate Household Flow Rates i Flow Rate Appliance Use GPM Lavatory Faucet Bath Tub Taken from UPC 1997 Freeze Prevention This unit comes equipped with heaters that discourage the unit from freezing F
28. t gases out of the recessed area Indoors Outdoors m Min 3 Min 32 Min 3 Initiating the Appliance For vour safetv read before operating WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life a b d This appliance does not have a pilot It is equipped with an electronic ignition device which automatically lights the burner Do not trv to light the burner bv hand Before operating check for gas accumulation in the area around the appliance Pav special attention near the floor because gas is often heavier than air and it mav accumulate near the floor Do not attempt to open the manual gas shutoff valve with anvthing but bv hand Never use tools If the valve will not open by hand do not try to repair it Instead call a qualified service technician Force or attempted repair may result in a gas leak fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace anv part that mav have been damaged bv being under water WARNING IF YOU SMELL GAS Do not use any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbors phone Follow the gas suppliers instructions If you cannot reach y
29. tact your local retailer or distributor to get the correct unit for your gas type Always install a manual shutoff valve on the gas supply line in case of an emergency or if service or maintenance is necessary This appliance and its individual shut off valve must be isolated from the gas supply piping system by unplugging the unit and turning off the main gas valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 72 PSI When all of the connections have been made check the gas line for leaks Apply soapy water to all gas fittings and connections if bubbles form there may be a leak Natural Gas Supply Piping Based on 0 60 specific gravity for natural gas at 5 WC pressure drop DOE standard is 1100 BTU per cubic ft of natural gas Pipe Size Cubic Feet of Natural Gas Length 10 20 30 40 50 60 70 80 90 100 125 150 200 LP 119 6 82 73 66 61 56 53 50 w 363 249 200 171 152 138 127 118 111 104 93 84 72 84 470 377 323 286 269 299 222 208 197 174 158 138 2103 1445 1161 4050 2235 1913 1696 1536 1413 1315 1234 1165 1033 Propane Supply Piping Based on 11 WC supply pressure Pipe Size kBTU of Propane Length 10 20 30 40 50 60 70 80 90 100 125 150 200 5 275 189 152 129 114 103 96 89 83 7
30. te Contact Takagi Industrial Company for instructions Error Codes All Takagi units are self diagnostic for errors If there is a problem with the installation or the unit it will give a signal through a flashing light on the circuit plate to communicate the source of the problem If the unit has a IK REO1 remote control installed this will give also give a numerical error code Consult the following chart for the meaning of an error code TK REO1 Computer Board Blinking One Time Computer Board Solenoid Gas Valve Output Thermistor TO input Thermistor Hi limit rar Lo 11 Blinking Three Times 55 Men Gas Vale 72 SRM MASS AT Remote Controller For technical support contact Takagi toll free at 888 882 5244 or check our website at www takagi usa com 19 Optional Items 1 TKREO1emperature Remote Controller The TKREO1 temperature Remote Controller has two functions it allows the output temperature from the T K1S to be adjusted within the range of 95 F to 167 F and it also works as a diagnostic tool that will give a concise error code whenever there is a problem with the unit The temperature options are 95 F 100 F 102 F 104 F 106 F 108 F 109 F 111 F 113 F 115 F 117 F 122 F 1317F 140 F 158 F and 167 F See the trouble shooting section for information on possible error codes 3 TK TV01 Vent Terminator This terminato
31. unted on a wall the L brackets that are included with every unit will be sufficient as earthquake protection to manufacturer s according applicable codes 20 Install unit and brackets installation instructions and any Heat Exchanger 21 Water Wav 22 T K1S PARTS LIST 001 CASE ASSEMBLY FRONT COVER SCREW COATED SILICON CAP s CORD CRAMP MANIFOLD 108 109 MANIFOLD SCREW GAS VALVE CORD GAS VALVE CORD GAS INLET GAS INLET PLATE GAS VALVE PLATE 118 119 IGNITER IGNITER CORD ko A 131 OVERHEAT CUT OFF FUSE 23 HEAT EXCHANGER ASSEMBLY O RING 406 INLET DRAIN PLUG 407 O RING 408 FILTER O RING 418 THERMISTOR CORD WATER CONTROL VALVE 420 FLOW SENSOR Lin VC jndjno 8c ce 9 Vv gr GG 9 c9 L9 19 302 9 0 c c c 6 Lv vv gr CG 99 9 5 09 f VC L6 0 ve JE 6 Lv vv gr CG 0G HH CC Sg c Le Le ve 9 BE Lv vv 407 9 081 GOL GGL GEL Del Scl O l OLL J Indu Snowe 3ndjnoO SA Wd5N INO 19 JEM JOH SJINUIJJ Jod uojjes
32. ust be vented in accordance with the section on venting of equipment in the latest edition of the National Fuel Gas Code This is a Category 111 appliance and must be vented accordingly The following are UL listed manufacturers ProTech Systems FasNSeal Z Flex Inc Z Vent Il and Heat Fab Inc Saf T Vent This unit requires 4 vent pipe Connect the vent pipe to the unit so that it is sealed airtight Follow the vent pipe manufacturer s instructions when installing the vent pipe Do not common vent this appliance with any other vented appliance The venting system must not exceed a length of 35 ft minus 5 ft for every elbow Do not use more than 3 elbows No of Elbows Max Vertical or Horizontal Lenath 39 ft 30 ft 25 ft 20 ft If the horizontal vent run exceeds 5 ft the following criteria must be observed e here must be a 2 ft vertical run off the top of the heater before the horizontal run begins e horizontal run must be supported at 3 intervals e The vent run should be pitched up towards the termination at 74 per foot The unit can be vented either up and out the roof or directly through a wall If the unit will be vented through a wall use Takagi USA Inc optional part the TK TVO1 vent terminator or an equal Category III vent part Locate the vent terminator according to ANSI Z223 1 NFPA 54 and applicable local codes Maintain the following clearances to any combustible surface in an ind
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