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MODEL T - K1 FLASH WATER HEATER

Photo's of optional products and installations

 Installation Diagrams

img00003.gif (45458 bytes)

 

  • ENDLESS HOT WATER
  • ON DEMAND
  • COMPACT, SAVE SPACE
  • CONSERVES ENERGY
  • COMPUTER CONTROLS
  • COMPUTERIZED SAFETY
  • NO PILOT LIGHT
Contents

For Your Safety
Operation

Installation

A Better Way to Heat Your water with the Flash!

POWER INPUT  Natural Gas; 37,000-165,000 BTU 
Propane Gas ; 37,000-165,000 BTU 
Thermal Efficiency  80 % 
First Hour Rating  Over 216 Gallons per Hour 
Gas Connections  3/4 " Male NPT 
Water Connections  3/4 " Male NPT 
Water Pressure  Min. 15 Psi , Max. 150 Psi 
Natural Gas Inlet Pressure  Min. 6.5 " wc , Max. 10.5 " wc 
Propane Gas Inlet Pressure  Min. 11 " wc , Max. 14 " wc 
Minimum Flow to Activate Burners  3/4 GPM 
Dimensions  27.5" x 16.5" x 8.3" 
Net Weight  60 lb. 
Electrical Supply  120 V , 60 Hz 
  • Inlet gas pressure must not exceed above value.
  • For gas pressures lower than 5" WC for natural gas, call the manufacturer.
  • High altitude, Do not install in areas over 4,500 feet above sea level. Contact the manufacturer for a high altitude model.
  • Check the rating plate to insure this product matches your specifications.
  • This appliance is not for use for space heating.
  • Takagi - USA is constantly improving our products, therefore specifications are subject to change without prior notice.

 

[BACK TO CONTENTS]

FOR YOUR SAFETY

PLEASE, READ CAREFULLY THIS MANUAL AND FOLLOW IT FOR YOUR SAFETY.

  1. Follow all local codes, 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.
  2. 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.
  3. Carefully plan where you install your Flash Water Heater. Insure that your heater will have enough combustible air, proper ventilation, and locate your heater where water leakage will do not 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 air flow.
  4. Check the rating plate for the correct gas type, gas pressure, water pressure, and electrical rating. If this unit does not match your requirements, do not install.

 

  1. If any problem should occur, turn off all hot water taps and turn off the gas. Then call a trained technician or gas company, manufacturer.
  2. WARNING : Do not disconnect the electrical supply if the temperatures will be near freezing. The Freeze Prevention Device only works if the unit has proper electrical power. The Freeze Prevention Device are rated for temperatures down to 5F (-15C) in a wind free environment. The wind chill factor will cause the Flash Water Heater to freeze and be damaged at temperatures above 5F (-15C). Refer to the section on Winterizing and Freeze Prevention Device for more information.
  3. 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 140F (60C) from the factory to maximize the amount of hot water you can use, Water temperature over 125F can cause severe burns instantly or death from scalds.
  4. 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.
  5. WARNING : Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
  6. WARNING : Do not reverse the water and gas connections, this will damage your heater and can cause severe injury or death from scalds. Following the diagram below when installing your Flash water heater.

OPERATION [BACK TO CONTENTS]   GENERAL

The Flash Water Heater is an instantaneous, tankless water heater designed to supply all your household and commercial hot water needs utilizing total efficiency. The principle behind the Flash Water Heater is simple. Once you open a hot water tap, water flows through the Flash Water heater. The water flow sensor automatically commands the computer to electronically ignite the burners and the computer monitors the water temperature, volume of water, and gas flow the insure you get the right amount of hot water in a Flash. After the burners are ignited the "fire on" lamp is lit.

0.75 gallons per minute is required to turn the burners on, After the burners are ignited, the flow rate can be lowered to 0.6 gallons per minute to maintain and still keep the heater on.

Now 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.

Normal Operation [BACK TO CONTENTS]

To Turn on Your Flash water heater

  1. Open a hot water tap.
  2. Burners ignite. "Fire On" lamp is lit.

  1. Mix with cold water to get the correct temperature water.

To Turn off your Flash water heater

  1. Close the hot water tap
  2. "Fire On" lamp extinguished.

Start Up

Once you have properly installed the unit, check the gas and water connections for leaks. Check for proper ventilation and combustible air to the heater. Purge the gas and water lines to remove debris. Then 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 will flow to that tap. Then close the hot water tap.
  4. Fully open the manual gas control valve installed.
  5. Turn on the 120 volt 60 Hz power supply to the Flash Water Heater.
  6. Now you are ready to enjoy hours of endless hot water.

Temperature

The temperature has been set at the factory at 140 F (60 C). This is electronically controlled by the computer and cannot be adjusted. Mix the hot water with cold to get the water temperature you desire.

WARNING : Temperatures above 125 F (52 C) can cause severe burns or death from scalding. Children, disabled and the elderly are at high risk of being injured. Feel the water temperature before bathing or showering. Do not leave children, disabled, and the elderly unsupervised.

The inlet water temperature will dictate how much hot water you can produce, but you will not be able to produce more than 4.8 gallons per minute of hot water because there is a flow governor restricting the water flow.

Freeze Prevention Devices    [BACK TO CONTENTS]

This unit comes equipped with heaters that discourage the unit from freezing. For 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). Do not install the water heater in an area with extremely cold weather. This will void your warranty and Takagi - USA will not be responsible for any damage that occurs.

CAUTION : 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. Winterizing

If you will not be using your heater for a long period of time or if the temperatures will drop below 5 F (-15 C) with the wind chill factor, turn off your heater and drain the unit of water. This will keep your unit from freezing and being damaged. Follow these instructions carefully:

  1. Turn off the power supply to the Flash Water Heater.
  2. Turn off the manual gas control valve located outside your heater.
  3. Turn off the manual water shut off valve located on the water supply line.
  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 or pan to catch the water from the unit's drain plugs. Remove the drain plugs to drain all the water out of the unit.
  6. Leave for 5 minutes.
  7. Securely screw the drain plugs back into place.

Now when you want to use your heater again follow these steps :

  1. Make sure all hot water taps are closed and the drain plugs are securely attached.
  2. Purge the water line of debris.
  3. Turn on the manual water control valve located on the water supply line.
  4. Open all the hot water taps to verify water flows to the taps. Then close hot water taps.
  5. Turn on the manual gas control valve located on the gas supply line.
  6. Turn on the power supply to the Flash Water Heater.

   

 INSTALLATION [BACK TO CONTENTS] General

All gas water heaters require careful and correct installation to insure 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.
  5. Maintain proper space for servicing. Install the unit so that it can be connected or removed easily.
  6. The electrical connection requires a means for switching off the power supply.
  7. Avoid installing the unit in an area with high level of dust, sand or debris. Impure particles from these objets may clog the air vent or reduce functions of the rotating fan and cause gas not to burn properly.
  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 parts listed below were included with the unit. 

 

OUTDOOR INSTALLATION [BACK TO CONTENTS]

Follow all local codes and in the absence of local codes, follow the National Fuel Gas Code ANSI Z221.23 in USA or in Canada CAN/CGA B149.1 or .2 Installation of Gas Burning Appliances.

Locate the water heater in an open, unroofed area, and maintain the following minimum clearances from combustible and noncombustible materials.

Piping side 12"
Front (Maintenance space) 24"
Floor Non combustible base Min. 3" off the ground
Back of heater 1"
Non piping side  6"
Top of heater  36"

Do not install this water heater under an overhang, less than 3 feet from its top. The area under an overhang must be open to three sides.

When installing the Flash Water Heater on the placement stand, be sure to adjust the legs so that it stands straight and securely. (Adjustable legs can be moved up to 1" )

Use the wall mount brackets to securely attach the T - K1 to the wall. Use a screw to attach the longer part of the wall mount bracket temporally to the heater and determine screw positions on the wall. Then drill a " hole in the wall. Insert anchor. Tighten all 4 screw. Minimum clearance behind the heater is 1"

WARNING : Do not have the flue terminal pointing toward any opening into a building. Do not locate your heater in a pit or 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 : In the USA, do not install the heater with the vent within 4 feet of any opening into a building. In Canada do not install the heater with the top of the vent assembly within 10 feet any opening into a building.

WARNING : Improper installation can cause nausea or asphyxiation from carbon monoxide and flue gases which could result in severe injury or death.

For high altitude installation above 4,500 feet. Contact the manufacturer on how to handle this situation. This unit is not certified to be installed at an altitude above 4,500 feet

INDOOR INSTALLATION [BACK TO CONTENTS]

FOR INDOOR INSTALLATION REMOVE OUTDOOR VENT CAP AND INSTALL 4" VENTING DIRECTLY ON FLUE OUTLET. Please Check inside unit when install to indoor.

Combustion Air Supply

The water heater location must provide enough air proper combustion and ventilation of the surrounding area. See the latest edition of ANSI Standard Z223.1 and any your local codes that should be applicable.

DO NOT INSTALL DIRECTLY ON CARPETING.

In general these requirements specify that if the unit is installed in a confined space, there must be at least two permanent air supply opening. One opening should be within 6 inches of the ceiling, and the other should be within 6 inches of the floor.

Minimum recommended Air supply to water heater

Water heater size Outside air area  Inside air area
165,000 BTU 42 Sq. IN 165 Sq. IN

The area indicated is for one of two openings one at floor level and one at ceiling, so the total net free area would be double the figures indicated.

Where, outside air supply, when combustion air is supplied directly through an outside wall, each opening should gave a minimum free area of one square in per 4000 BTUH input of the total input rating of all appliances in the enclosed area.

Inside air supply, when combustion air is supplied from inside the building, each opening should have a minimum free area of one square inch per 1000 BTUH input of the total input rating of all appliance in the enclosed area. These openings should never be less than 100 Sq. IN. (T-K1 should be open Min. 165 Sq.In (13" x 13" Square Open each bottom and top ), Please check the local plumbing code.

Venting Instructions.

This water heater must be vented in accordance with Venting of Equipment, of the latest edition of the National Fuel Gas Code.

WARNING : Improper venting of this appliance can result in excessive levels of Carbon Monoxide which can result in severe personal injury or death.

  1. Vent Connections

The vent system must be gas tight. All seams and joint must be sealed with silicone sealant or adhesive tape having a minimum temperature rating of 400 F. For best results, a horizontal vent system should be as short and straight as possible with Single wall Galvanized steel vent pipe or stainless steel vent pipe.

The entire vent system must not exceed the size specified in table.

Horizontal Venting

Diameter Max. No. of Elbow Max. Vertical or Horizontal run in Length
4" 3 Ea. 21 ft

For each elbow added, deduct 5 ft. from max. vent length.

When the horizontal vent run exceeds 5 ft the following criteria must be observed ;

  • Attach a vertical pipe at least 2" high to the water heater outlet before the horizontal run.
  • Support the vent run at 3 ft intervals with overhead hanger.
  • Pitch up the vent run toward the vent terminal at a rate of 1/ 4" per foot.

 

Piping side Min. 6"
Front (Maintenance space) Min. 4"
Floor Non combustible base
Back of heater 1"
Non piping side  Min. 2"
Top of heater  11"

 

  1. Vent Termination

A side wall vent terminal must be used when the water heater is vented through a side wall. Use Takagi - USA part No. T-V1 The hood provides a means of installing vent pipe through the building wall and must be located in accordance with ANSI Z223.1 and local applicable codes.

GAS SUPPLY AND PIPING [BACK TO CONTENTS]

This unit comes furnished with an approved manual gas control valve that must be placed on the unit before it is connected to the gas line.

Check the gas inlet pressure and the type of gas matches the rating plate located on your water heater. Insufficient gas pressure will cause your Flash Water Heater to be inefficient and not work properly. Size the gas piping correctly.

The minimum and maximum inlet gas pressures are listed below:

Natural Gas Min. 5" WC Max. 10.5" WC
Propane Gas Min. 11" WC Max. 14" WC

Maximum gas pressures must not exceed this value. Minimum gas pressures are for purposes of input adjustment.

After the connections are complete check for gas leaks by applying soapy water to all gas fittings and connections. Soap bubbles are a sign of gas leaks.

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 Psi. The appliance and its gas connections must be leak tested before placing the unit in operation.

Always use approved connectors to connect the unit to the gas line. Always purge the gas line of any debris before connection to the heater.

WARNING : Conversion of this unit from natural gas to propane or propane to natural gas cannot be done in the field. Contact your local retailer or distributor to get the correct unit for your gas type.

Water Connections [BACK TO CONTENTS]

An approved manual water control valve must be placed on the cold water supply line. All soldering materials and piping materials must be useable with potable water.

If the water heater is installed in a closed water system, such as one having a backflow preventer in the cold water supply line, means shall be provided to control thermal expansion. Contact the water supplier or local plumbing inspector on how to control this situation.

Purge the water line to remove all the debris and air from it. It may damage the heater if you do not.

There is a wire mesh filter to discourage debris from entering your heater. This will need to be cleaned periodically.

   

WARNING : Do not reverse the hot outlet and cold supply line connections to the Flash Water Heater. This will cause your heater to operate dangerously. Make sure the hot and cold lines are connected properly. Refer to the FOR YOUR SAFETY section at the front of this manual.

TEMPERATURE AND PRESSURE RELIEF VALVE [BACK TO CONTENTS]

This unit does not come with an approved temperature and pressure relief valve. An approved temperature and pressure relief valve must be installed on the hot water outlet. A "Tee" fitting should be used to attach the temperature and pressure relief valve.

The temperature and pressure relief valve must meet not exceed the following:

Temperature Relief 210 F
Pressure Relief 150 psi

The discharge capacity must be at least 165,000 Btu/hr and the discharge opening shall be piped to a suitable drain to prevent water damage should discharge occur.

If the temperature and pressure relief valve on the appliance discharges periodically, this may be due to the thermal expansion in a closed water supply system. Contact the water supplier or local plumbing inspector on how to correct this situation.

Do not plug the temperature and pressure relief valve. The relief line should have no reduced fittings or other restrictions and should allow for complete drainage of valve and line. The temperature and pressure relief valve must be manually operated once a year to check for correct operation.

Should overheating occur or gas supply fail to shut off, turn off the manual gas control valve to the appliance.

Electrical Connections [BACK TO CONTENTS]

WARNING : The heater must be electrically grounded in accordance with the most recent edition of the National Electrical Code, ANSI/NFPA 70. In Canada, all electrical wiring to the heater should be in accordance with local codes and the Canadian Electrical Code, CSA C22.1 Part 1. 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.

The T-K1 requires an electrical power supply from 120 VAC 60 Hz circuit and be properly grounded.

  • A means for switching off the 120 VAC power supply must be provided.
  • Wire the heater exactly as shown in the wiring diagram.
  • A green screw is provided in the junction box for grounding connection.

Refer to the wiring diagram. Wiring diagrams are also located on the inside panel of the appliance.
 

Wiring Diagram [BACK TO CONTENTS]

Also wiring diagram are located on the inside panel of the appliance.img00021.gif (43933 bytes)

Electrical Rating

120 VAC, 60 Hz

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. Wires are available through the manufacturer.
 
  Lighting the Appliance [BACK TO CONTENTS]

For your safety 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.

  1. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.
  2. Before operating smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
  3. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, do not try to repair it, call qualified service technician. Force or attempted repair may result in a fire or explosion.
  4. 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 any part or the control system and any gas control which has been under water.

WHAT TO DO IF YOU SMELL THE 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.
  • If you cannot reach your gas supplier, call the fire department.

Operating Instructions

  1. STOP! Read the safety information first!
  2. Turn off electric power to the appliance.
  3. Do not attempt to light the burner by manually.
  4. Turn the gas control manual valve located on the outside of the unit counterclockwise 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 section. If you do not smell gas go to the next step.
  6. Turn the gas control manual valve located on the outside of the unit clockwise to the ON position.
  7. Turn on all electric power to the appliance.
  8. If the appliance will not operate, follow the instructions "To Turn Off Gas to Appliance" and call your service technician or gas supplier.

TO TURN OFF GAS APPLIANCE

Close the manual gate valve on the gas inlet line. Then turn off the power supply.

 

Manifold pressure taps.
 
 
 
 
 
 
 
 
           

Maintenance and Service [BACK TO CONTENTS]

WARNING : Always turn off the electrical power supply, turn off the manual gas control valve, and turn off the manual water control valve whenever servicing.

The unit should be check once a year by a certified and trained technician. If repairs are needed, the repairs should be done by a certified and trained technician.

Systems and parts that should be checked at least once a years.

  1. Venting systems
  2. Burners
  3. Manual operation of the temperature and pressure relief valve to insure 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.

   

TROUBLE SHOOTING AND COMMON QUESTIONS. [BACK TO CONTENTS]

Q: No hot water

Q: The "on" lamp is not lit.

A: After you turn on the power supply, you must wait 30 second to start the unit.

A: Open the manual gas shut off valve all the way.

Q: While using the appliance the flame went out.

A: Open the manual water shut off valve all the way.

A: Clean the filter if necessary. Refer to the maintenance and service section.

A: A minimum water flow of 0.8 GPM is needed to activate your heater.

Q: When I open the hot water tap and mix it with cold water the water turns cold.

A: A minimum water flow of 0.8 GPM is required to activate your heater. After the heater is activated, the required water flow drops to 0.6 GPM to keep your heater on. If the water flow rate falls below 0.6 GPM, the burners will turn off automatically.

Q: White smoke comes out from the exhaust vent.

A: During the winter when temperatures are colder the exhaust fumes condensed in the air to produce the white steam.

Q: When I open a hot water faucet, I do not immediately get hot water.

A: It takes time for the hot water to get from the heater to your faucet.

Q: Even after I turn off the hot water tap, the fan is still spinning.

A: The fan is designed to be on for a full 70 seconds after the hot water tap is turned off to eliminate any residual gas and flue products.

Q: Keep "on" light is blinking, and no hot water when you turn on hot water tap.

A: Check first Hi-Limit switch then Pressure switch and your vent system which is might be clogged out by something. Call service person.
 
 
  PARTS LIST [BACK TO CONTENTS]

ITEM DESCRIPTION ITEM DESCRIPTION
1 CASE ASSEMBLY 2 TOP ASSEMBLY
3 OUT DOOR VENT CAP 4 FRONT COVER
5 COMBUSTION CHAMBER 6 PACKING
7 FAN MOTOR 8 GAS VALVE UNIT
9 VALVE FIXING PLATE 10 GAS IN PIPE
11 COMBUSTION CHAMBER FRONT 12 BACK GUARD PANEL
13 LEFT MANIFOLD 14 RIGHT MANIFOLD
16 SPARK ELECTRODE 17 FLAME DETECTOR
18 FIXING PLATE 19 FLAME DETECTOR WIRE
20 BURNER ASSEMBLY 21 GAS INLET
22 GAS FILTER 23 FIXING PLATE
24 SEAL PACKING 25 HEAT EXCHANGER ASSEMBLY
26 HEAT EXCHANGER FIXING PLATE 27 OVER HEAT CUT OFF FUSE
28 HEAT EXCHANGER FIXING PLATE 29 FUSE FIXING PLATE
30 HEATER BLOCK ASSEMBLY 31 HEATER FIXING PLATE
32 HI - LIMIT SWITCH 33 THERMISTOR ASSEMBLY
34 FLOW SENSOR 35 WATER GOVERNOR CASE
36 WATER GOVERNOR 37 WATER INLET
38 O-RING 39 O-RING
40 O-RING 41 O-RING
42 O-RING 43 JOINT PACKING
44 FILTER 45 WATER OUTLET
46 DRAIN PLUG 47 DRAIN BAND
48 DRAIN PLUG 49 DRAIN BAND
50 CONTROL BOX "A" 51 CIRCUIT PLATE
52 CONTROL BOX "B" 53 PLATE
54 IGNITER 55 FUSE BOX
56 FUSE 57 FUSE COVER
58 GROUND FAULT INTERRUPTER 59 TRANSFORMER
60 SILICON RING 63 RUBBER BUSHING "A"
64 RUBBER BUSHING "B" 65 IGNITION WIRE
66 SEAL PLATE 67 THERMOSTAT
68 SILICON CAP 69 PRESSURE SWITCH PORT
70 SILICON TUBE 71 PRESSURE SWITCH

[BACK TO CONTENTS]

 

FLASH Model T-K1 Maintenance Manual

Symptom: Water temperature is not hot enough.

  This symptom is mostly related to a gas supply problem or TK-1 overcapacity. Check water heater performance.

TK-1 Water Filter Cleaning

  1. Close water shut-off valve.
  2. Clean water Filter (44) on the cold side connection properly.
  3. Open water shut off valve.

  Water Leaking Check

We have lots of experience with cold-water leaking to hot water pipe. If it is leaking, water flow may not be reaching minimum water flow for activation. If you find this result, contact your installer or plumber to fix it.

  1. Close water shut off valve for TK-1.
  2. Open only hot water faucet fully.
  3. If water is coming out, water is leaking somewhere.

  If you have re-circulation system, please check your system.

1.      Make re-circulation running until pump stops.

2.      Make pump power inoperable by disconnecting pump power supply.

3.      Hold return pipe between pump and check valve by hand to feel temperature.

4.      Open only hot water faucet fully.

5.      If you feel temperature is getting cold, check to see if valve (one way valve) is defected.

 

Water Heater Performance Check

Check your water heater performance and submit it to TAKAGI Technical Department to be evaluated. 

  1. Check to see if water shut-off valve is opened fully.
  2. Open nearest faucet (tub faucet is better) with only hot water handle fully. If it is single handle faucet or temperature compensator faucet, set handle as hot as possible.

  Input Cold Water Temperature: _____F

Output Hot Water Temperature with each flow rate without remote controller:

Output Temperature

100F

110F

120F

130F

140F

Actual Output Water Flow (GPM)

 

 

 

 

 

 

T-K1 Data

(GPM)

Input 40F

4.5

3.9

3.4

3.0

2.7

Input 50F

5.3

4.5

3.9

3.4

3.0

Input 60F

5.3

5.3

4.5

3.9

3.4

Input 70F

5.3

5.3

5.3

4.5

3.9

 

  1. Compare testing result with T-K1 data. If your result is in the range, T-K1 is working fine.
 

 

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