***
FOR
YOUR SAFETY
PLEASE,
READ CAREFULLY THIS MANUAL AND FOLLOW IT FOR YOUR SAFETY.
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.
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 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 airflow.
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.
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.
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 is rated for temperatures down to 5ºF (-15ºC) in a wind
free environment. The wind chill factor will cause the Flash Water
Heater to freeze and be damaged at temperatures above 5ºF (-15ºC).
Refer to the section on Winterizing and 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 140ºF (60ºC) from the
factory to maximize the amount of hot water you can use, Water
temperature over 125ºF 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 and
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.
Following the diagram below when installing your Flash water heater.
INSTALLATION
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
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 attaches 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 ¼" 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.
Indoor
Installation
FOR
INDOOR INSTALLATION REMOVE OUTDOOR VENT CAP AND *
CUT PRESSURE
SWITCH JUMP WIRE THEN INSTALL 4" VENTING DIRECTLY ON
FLUE OUTLET. * : PLEASE! Look inside unit.
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.
WARNING : DO NOT INSTALL DIRECTLY ON CARPETING.
In
general these requirements specify that if the unit is installed
in a confined space, there must be permanent air supply opening.
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, such as intake louvers openings into the dwelling.
Each opening should give a minimum free area of one square inch
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 of the closet door 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.
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.
A)
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 400º F. For best results, a horizontal vent system should
be as short and straight as possible with Single wall Galvanized
steel 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;
1.
Attach a vertical pipe at least 2" high to the water heater
outlet before the horizontal run.
2.
Support the vent run at 3 ft intervals with overhead hanger.
3.
Pitch up the vent run toward the vent terminal at a rate of 1/
4" per foot.
|
Piping
side
|
Min.
6"
|
|
Front
(Maintenance space)
|
Max.
24"
Min. 4"
|
|
Floor
|
Noncombustible
base
|
|
Back of heater
|
1"
|
|
Non
piping side
|
Min.
2"
|
|
Top
of heater
|
11"
|
|
B)
Vent Termination
A side
wall vent terminal must be used when the water heater is vented
through a side wall. Use Takagi - USA parts No. TK-TV01. 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.
Manufactured
Home (Mobile Home ) and Recreational Park Trailers
WARNING
: Read and Review this entire Manual with special emphasis
on the Combustion and Ventilation For your safety and follow it
for your safety.
This
appliance must be installed in accordance with the Manufactured
Home Construction and Safety Standard (Title 24, CFR ; Part 3280
) and ANSI A119.5 for Recreational Park Trailers, the following
instructions the instructions supplied with the vent termination,
local codes and utility company requirements governing the installation
of water heaters in manufactured home ( mobile home ) and Recreational
Park Trailers and/or in the absence of local codes, the latest edition
of the National Fuel Gas Code, ANSI Z 223.1/NFPA 54 and ANSI A119.5/NFPA
501D.
Location
This
water heater must be installed within an enclosure so as to separate
the water heater’s combustion and venting system from the interior
atmosphere of the manufactured home and trailer. All air for combustion
must be obtained from the outside atmosphere. And the products of
combusted gases ( flue gases ) must be discharged directly to the
outside atmosphere through the gas vent. There must not be any door
or other opening into the water heater enclosure from the inside
of the manufactured home. Please refer to installation diagrams.
Installation
Placement
of Water Heater : Locate the water heater as desired, make certain
the minimum clearances. For indoor installation following page 7-9,
and outdoor installation, please see section for manufactured home
and recreational park trailer outdoor installation.
Outdoor
installation
Outdoor
Recessment installation: When heater install to recessed area we
are strongly recommend to use TAKAGI Part TK-TV02 it designed for
outdoor recessed installation and tested by AGA. Followed installation
clearance to prevent in property damage, bodily injury, or death.
Indoor
installation
Same as typical house installation except, All air for combustion
must be obtained from the outside atmosphere for manufactured home.
Please
see information above for indoor installation.
Gas
Supply and Piping
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 ½ 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
Connection
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
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 Connection
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
Lighting
the Appliance
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.
a)
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.
b)
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.
c)
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.
d)
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.
OPERATION
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
To
Turn on Your Flash water heater
1.
Open a hot water tap.
2. Burners ignite. "Fire On" lamp is lit.
3.
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 Max. 140º F (60º 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 125º F (52º 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 5.3 gallons per minute of hot water
because there is a flow governor restricting the water flow.
Freeze
Prevention Devices
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 5º F (-15º C) in a wind free environment. The wind chill
factor will cause the unit to freeze at temperatures above 5º F
(-15º 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 5º F (-15º 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 units 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.
Parts
List
|
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
|
0-RING
|
39
|
0-RING
|
|
40
|
0-RING
|
41
|
0-RING
|
|
42
|
0-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
|
