Owner’s Guide and Installation Manual
25,000 – 190,000 BTU Outdoor Tankless Water Heater
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 and liquids in the
vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical 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.
- Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
CERTIFIED
R
Thank you for purchasing this Gas Water Heater. Before using, please:
Read this manual completely for correct installation and operation instructions.
Completely fill out the warranty registration card (included separately) and
mail the detachable portion.
Keep this manual (and the remainder of the warranty registration card) where it
can be found whenever necessary.
Low NOx
Approved by
SCAQMD Printed in the U.S.A. 1005
PART NO. 184959-105
SAR8436
*SAR8436 T*
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Contents
Contents ........................................................................................................ 2
Owner's Guide
Important Safety Information ....................................................................... 3
General Parts
Main Unit .................................................................................................... 7
Remote Controller .................................................................................... 8
Initial Operation ........................................................................................... 10
How to Use (Using the remote controller)
Muting the Remote Controller ................................................................. 11
Setting and Using the Water Heater ........................................................ 12
Flow Meter Alarm ...................................................................................... 14
How to Use (Not using the remote controller)
Setting and Using the Water Heater ........................................................ 16
Preventing Damage from Freezing ............................................................ 17
Regular Maintenance ................................................................................... 19
Troubleshooting .......................................................................................... 21
Follow-up Service ........................................................................................ 25
Specifications .............................................................................................. 26
External outfitting ........................................................................................ 27
Combustion unit and gas route .................................................................. 29
Hot-water feed route .................................................................................... 31
Electronic control unit ................................................................................. 33
Electronic control unit, Remote controller and Attached set .................. 34
Installation Manual ...................................................................................... 35
1. Included Accessories ............................................................................ 36
2. Optional Accessories ............................................................................ 36
3. Before Installation ................................................................................. 37
4. Choosing Installation Site .................................................................... 37
5. Installation Clearances ......................................................................... 39
6. Installation .............................................................................................. 42
7. Gas Piping .............................................................................................. 43
8. Water Piping ........................................................................................... 45
9. Plumbing Applications .......................................................................... 46
10. Electrical Wiring .................................................................................... 47
11. Maintenance ........................................................................................... 50
12. Trial Operation ....................................................................................... 50
13. Dimensions ............................................................................................ 52
Remote Controller Installation Guide ....................................................... 54
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Important Safety Information-1
To prevent damage to property and injury to the user, the icons shown below will be used to warn of
varying levels of danger.
Every indication is critical to the safe operation of the water heater and must be understood and
observed.
Potential dangers from accidents during installation and use are divided into the following three
categories. Closely observe these warnings; they are critical to your safety.
Icons warning of risk level
Danger
Denotes content that may result in instantaneous fire, serious injury
and even death when ignored.
Warning
Denotes content that may result in fire, serious injury and even
death when ignored.
Caution
Denotes content that may result in bodily injury and physical
damage when ignored.
The content following this icon is necessary to understand for safe
and easy use of this water heater.
Remarks
Other icons
Electric
Shock.
High
Temperature.
Be sure
to do.
Prohibited
No flame.
Don’t
touch.
Ground.
Don’t touch
with a wet
hand.
Don’t
disassemble
the equipment.
Danger
If you detect a gas leak:
1. Do not try to light any appliance
2. Do not touch any electrical switch;
do not use any phone in your
building.
3. Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
4. If you cannot reach your gas
supplier, call the fire department.
Do Not Install Indoors.
Indoor
This will cause carbon monoxide poisoning
and a potential fire hazard.
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Important Safety Information-2
Warning
If you detect abnormal combustion
or abnormal odors, or during an
earthquake, tornado or fire:
1. Turn off the hot water supply
2. Turn off the power to the water
heater
3. Turn off gas and water at the
main
4. Consult the nearest sales agent
Check the temperature
of the running hot water
before entering the
shower.
Do not turn off the water heater or
change the water temperature while
someone is bathing.
Be sure the gas/power supplied
matches the gas on the rating
plate.
Check the temperature
before stepping into
the bath tub.
Do not place combustibles such as
laundry, newspapers, oils etc. near
the heater.
Unit
Do not use combustible chemicals
such as oil, gasoline, benzene etc.
in the vicinity of the heater or the
exhaust vent terminal.
Leave the proper clearance between
the water heater and nearby objects
(trees, timber, boxes with flammable
materials etc.).
Upper:
Min. 36"
Left side:
Min. 6"
Right side:
Min. 6"
Front:
Sug. 24"
Do not allow small children to play
unsupervised in the bathroom.
Do not allow small children to
bathe unsupervised.
Consult the nearest sales agent if
the water heater location needs to
be changed.
Contact a qualified service
technician for any necessary
repairs, service or maintenance.
Do not place or use a spray can
near the heater or the exhaust vent.
Contact sales agent before using
with a solar pre-heater.
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Caution
Be sure to electrically ground the
unit.
Do not touch the exhaust vent
during or immediately after
operation of the water heater.
Do not touch the power cord with
wet hands.
Keep power cord free of dust.
Do not use a broken or modified
power cord. Do not bind, bend or
stretch power cords.
Do not scratch, modify, or subject
them to impact or force.
Do not use the water heater for
other than hot water supply,
shower and bath.
Do not use hair spray or spray
detergent in the vicinity of the
heater.
If this unit will be installed in a
salon or other location where hair
spray or aerosols will be used,
locate the unit in a seperate area
that is supplied with fresh air from
outdoors.
Do not install in locations where
excessive dust or debris will be
in the air.
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Important Safety Information-3
Remark
Do not drink water that has been inside the
unit for an extended period of time. Do not
drink the first use of hot water from the
unit in the morning.
Clean the filter on the water inlet as
frequently as required by the quality of
your local water.
This unit is only approved for installation
up to 4500 ft. above sea level.
For installations at higher elevations, contact sales
agent for Instructions.
Do not disassemble the remote controller.
Do not use benzene, oil or fat detergents
to clean the remote controller.
Keep the area around the unit clean.
If boxes, weeds, cobwebs, cockroaches etc. are in
the vicinity of the unit, damage or fire can result.
This may cause deformation.
Do not get the remote controller wet.
Although it is water resistant, too much water can
cause damage.
Do not install the equipment where the
exhaust will blow on walls or windows.
Treat hard, acidic or otherwise impure
supply water with approved methods to
ensure full warranty coverage.
Do not splash water on the remote
controller. Do not expose the remote
controller to steam.
Do not locate the remote controller near stoves or
ovens, this may cause damage or failure.
Preventing damage from freezing (
Problems resulting from scale formation
are not covered by the warranty.
Check ignition during use and extinction
after use.
Do not run water through the unit when
p.17)
Damage can occur from frozen water within the
device and pipes even in warm environments.
Be sure to read below for appropriate measures.
Repairs for damage caused by freezing are not
covered by the warranty.
Take necessary measures to prevent
freezing of water and leakage of gas when
leaving the unit unused for long periods of
time. ( p.18)
unit is not on.
When discharging hot water, make sure the unit is
ON.
If water is run through the unit with the unit
OFF, water may condense inside the unit and cause
incomplete combustion or damage to the internal
electrical components.
If it is snowing, check the air inlet, exhaust
gas vent and exhaust vent terminal for
blockage.
For single-handle fixtures or valves, turn the fixture
all the way to the hot side, and adjust the temperature from there.
Do not use parts other than those specified
for this equipment.
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General Parts-1
Main Unit
Outdoor Wall Hanging Model
Exhaust Vent
Front Cover
Air Inlet
Water Drain Valve (with Water Filter)
(Inside Water Inlet)
(
p.20)
Pressure Relief Valve
Water Supply Valve
Gas Supply Valve
*
The above illustration shows an example of installation.
The exact installation configuration may be slightly different.
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General Parts-2
(Optional) Remote Controller (9004223)
Setting Buttons
Display
For setting the hot
water temperature,
the flow meter alarm,
and other settings.
Power On/Off Button
For turning the
heater on and off.
Flow Meter Alarm Set Button
For setting the flow
meter alarm.
( p.14 and 15)
* Before use, remove the protective sheet from the remote controller surface.
* The unit has been shipped from the factory with the remote control set at 110°F.
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General Parts-3
Display
The illustration below shows the remote controller display. What is actually displayed
depends on how the water heater is set.
Burner On Indicator
Temperature Setting
Priority Indicator
(Ex.: 110°F)
When this indicator
is lit, the hot water
temperature can be
set.
( p.13)
Flow Meter Setting
The display will flash
after hitting the flow
meter alarm set button.
( p.15)
Error Code
A number will flash if
a failure occurs.
( p.24)
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Initial Operation
Before the first use of your water heater, make the following preparations.
Follow steps
1
2
1 through 4.
Open the water supply valve.
OPEN
CLOSED
Open a hot water fixture to confirm that
water is available, and then close the
fixture again.
Hot water fixture
3
Open the gas supply valve.
4
Turn on the power.
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How to Use (Using the remote controller)
Muting the Remote Controller
The remote controller will emit a sound
when any button is pushed. This sound
can be muted if it is desired.
1
1
* Initial factory setting is with sound
With the remote controller
off, hold the Power On/Off
Button for five seconds.
Muted
No sound
after 5 sec.
Sound
Tone sounds
after 5 sec.
The flow meter alarm cannot be muted.
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How to Use (Using the remote controller)
Setting and Using the Water Heater
2
1
(Starting with the Power Off)
1
Press the Power
On/Off Button.
On
The temperature will be
displayed on the remote
control thermostat.
On
Previous set
temperature
(Ex.: 110°F)
Caution
To prevent scalding:
High Temperature
Temperatures above 125 °F can scald.
• Check the water temperature by hand before bathing or
showering.
• When setting the unit to 125°F or higher, the
temperature display will flash for 10 seconds as a high
temperature warning.
Remote Controller Display
Flashes for 10 sec
• Take caution when using the unit again after setting to
125°F or higher. Always check the set temperature
before use.
• Do not allow anyone to change the water temperature
while hot water is running.
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Set temperature.
2(
Always check the
temperature setting
before use.
)
3
Turn on hot
water.
4
Turn off the hot
water.
Hot
Cold
Check the indicator lights.
On
Off
Water temperature
(°F:
)
The temperature settings below are examples. The temperature setting
necessary depends on the usage, the length of piping and the time of year.
100
Washing
dishes, etc.
105 110 115 120 125 130 135 140 145 150 160 170 176
Shower, hot water
supply, etc.
High temperature
If fixtures incorporate mixing
valves, set the temperature
higher than usual.
Only N-069M
*Initial factory setting is 110°F
* For most residential applications, the recommended setting temperature is 120°F or less.
For applications that occasionally require a higher temperature setting, locate the remote controller
in a convenient location ( p.61).
* Consult local codes for minimum operating temperatures.
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How to Use (Using the remote controller)
Flow Meter Alarm
2,3
1
3
(Starting with the power off)
1
Preparation
Set temperature.
2(
Press the Power
On/Off Button
1. Plug the bath drain.
Always check
temperature setting
before use.
On
)
Hot
Cold
The temperature will be displayed
on the remote control thermostat.
On
Check the indicator lights.
Previous set temperature
(example:110°F)
Water temperature
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Water Temperature
An alarm will sound for ten
seconds when the flow
reaches the set level.
(°F:
The temperatures settings below are only examples. The
temperature setting necessary will depend on the usage,
the length of piping and the time of year.
100
Warm
The water will continue to run unless it is
manually turned off.
105
110
115
Warmer
)
120
Hot
* Initial factory setting: 110°F
To set the flow meter alarm:
3
Adjust flow meter
alarm setting.
4
Turn on hot
water.
Press the flow meter alarm set button
(the setting will flash on the display)
and adjust with the setting buttons.
5
Turn off the hot
water when the
alarm sounds.
The alarm will sound when
the set level has been
reached. Stop the water.
Increase
Decrease
Choose the flow meter alarm setting
from the following options: 10 - 60
(In 5 gallon intervals), 70 - 100 (In
10 gallon intervals), or 990 gallons.
Note:
The alarm will not sound if
it is set for 990 gal.
Note:
The alarm will not
sound if it is set for
990 gal.
On
Off
Flow meter setting will be flashing
(ex. 45 gal.)
* The level can only be adjusted
while the indicator is flashing.
* After ten seconds, the remote
will again display the temperature.
If the flow meter alarm is being used to indicate when a tub is full:
• If any hot water is being used besides what is going into the tub, the alarm will sound before
the tub is full.
• If there was water in the tub before the fill began, or if the water is not shut off manually when
the alarm sounds, the tub may overflow.
• If there was water in the tub before the fill began, the temperature in the tub after it is full may
be different from the temperature setting.
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How to Use (Not using the remote controller)
Setting and Using the Water Heater
The factory temperature setting is 120°F (fixed). Mix with cold water with a mixing valve
or at the fixture for desired temperature.
1
Check that electrical power is connected.
2
Turn on hot water.
3
Mix for desired temperature.
t
Ho
4
te
wa
r
W
ate
r
Turn off the hot water.
The electrical power does not need to
be disconnected between uses.
If you want to the temperature to be changed to 130°F or 140°F, contact the installer or sales agent.
WARNING
High Temperature
To prevent scalding.
Check the temperature of the running hot
water before using. Temperatures above
125°F can scald instantly.
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Preventing Damage from Freezing-1
Remarks
* Damage can occur from frozen water within the device and pipes even
in warm environments. Be sure to read below for appropriate measures.
* Repairs for damage caused by freezing are not covered by the warranty.
Freezing is prevented within the device automatically by the freeze-prevention heater
Freezing cannot be prevented when the power plug is unplugged. Do not remove the power
plug from the wall outlet.
(Freezing will be prevented regardless of whether the operation switch is ON or OFF.)
* The freeze prevention heaters will not prevent the plumbing external to the unit from freezing.
Protect this plumbing with insulation, heat tape or electric heaters, solenoids, or pipe covers.
If there remains a freezing danger, contact the nearest sales agent.
Take the measures below for extremely cold temperatures*.
(outside temperature including wind chill factor less than 5°F)
Hot Water Fixture
This method can protect not only to the heater, but also to the water supply,
water piping and mixing valves.
1. Turn off the power.
2. Close the gas supply valve.
3. Open a hot water fixture, and keep a small stream of hot water
running. (.1 gal./minute or about .2” thick).
* If there is a mixing valve, set it to the highest level.
* When linking multiple units, discharge water equivalent to
.1 gal./minute per unit.
4. The flow may become unstable from time to time. Check the flow
30 minutes later.
* In general, it is not advisable to run water through the unit when
it is OFF (see p. 6), but in this case freeze prevention is more
important.
.2" thick
* Remember to set mixing valves and fixtures to their original levels before using the unit again
to prevent scalding.
* If there is still a chance that the unit will freeze, drain the unit as on the next page.
If water will not flow because it is frozen
1. Close the gas and water valves.
2. Turn off the power button.
3. Open the water supply valve from time to time to check whether water is running.
4. When the water is flowing again, check for water leaks from the equipment and piping
before using.
If the heater or the piping is frozen, do not use the heater or it may get damaged.
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Preventing Damage from Freezing-2
If the water heater will not be used for a long period of time,
Drain the water.
Drain the water as follows:
Caution
High Temperature
To avoid burns, wait until the equipment cools down
before draining the water. The appliance will remain hot
after it is turned off.
Drain water into a bucket to prevent water damage.
1. Close the gas valve.
2. (1) Turn the power on.
(2) Turn and leave open the hot-water tap for more than 1 minute and close.
Fixture
* An 11 Error Code may appear on the remote controller.
This is not a malfunction of the unit. Do not turn Power ON/OFF Button OFF.
3. Close the water supply valve, disconnect
the electrical power supplied to the unit.
Do not touch with wet hands.
4. Fully open all hot water fixtures.
Fixture
5. Open all drain plugs and drain the water out
of the unit.
6. When the water is completely drained, replace all drain
plugs and close the hot water fixtures.
Drain Plugs
Turning the Unit Back On
1. Check that all drain plugs are inserted.
2. Check that all hot water fixtures are closed.
3. Follow the procedure on p.10 “Initial operation”, steps 1 through 4.
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Regular Maintenance-1
Periodic Inspection
Caution
High Temperature
To avoid burns, wait until the equipment cools down
before draining the water. The appliance will remain
hot after it is turned off.
Check For laundry, newspaper, timber,
oil, spray cans and other
combustible materials. ( p.4 )
Check For dust and soot in
the exhaust vent.
Check For abnormal sounds
during operation.
Check For dust or debris in
the air inlet.
Check For abnormalities in
external appearance,
discoloration or flaws.
Check For proper operation of
pressure relief valve.
Check For water leaks from the
equipment and piping.
Periodic Maintenance
Equipment
Wipe the outside surface with a wet cloth, then dry the surface. Use a neutral detergent to
clean any stains.
Remote Controller
Wipe the surface with a wet cloth.
• Do not use benzene, oil or fatty detergents to clean the remote controller;
deformation may occur.
• The remote controller is water resistant but not water proof. Keep it as dry as possible.
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Regular Maintenance-2
Periodic Maintenance
Water Drain Valve (with Water Filter)
If the water drain valve (with water filter) is covered with debris, the hot water may not run
smoothly, or the unit may put out cold water. Check and clean the filter as explained below.
* To avoid burns, wait until the equipment cools down before draining the water.
The appliance will remain hot after it is turned off.
1. Close the water supply valve.
2. Open all hot water fixtures.
3. With a bucket ready, remove the inlet and outlet
drain plugs (about 0.2 gal. will drain out)
4. Take the water drain valve (with water filter) out
of the inlet. (See illustration to right).
5. Clean the water drain valve (with water filter) with
a brush under running water.
6. Replace the water drain valve (with water filter)
and close the drain plugs.
(Take care not to lose the packing.)
7. Close all hot water fixtures.
8. Open the water supply valve and check that
water does not leak from the drain plugs or water
drain valve (with water filter).
Inlet
Packing
Drain Plug
(with filter)
Water Supply
Valve
Optional Maintenance
Water Heater Service Valves
Hot Water
Service Valve
Cold Water
Service Valve
Pressure Relief Valve
Drain
Water Outlet
* Isolator valve kits may be purchased as an
accessory (Call parts department for ordering
information).
They allow for full diagnostic testing and easy
flushing of the system.
* The kit includes two full port isolation valves
and a pressure relief valve for the hot side.
Contact sales agent for more information.
Water Intlet
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Troubleshooting-1
Initial Operation
Unit does not attempt to ignite
when water is running.
• Is water running?
• Check for reversed plumbing or crossed pipes.
• Check the water drain valve filter. (
Unit attempts to ignite but fails
p.20 )
• Reset unit and try again. There may be air in the gas line.
• Have a professional check the gas supply pressure.
Temperature
Hot water is not available
when a fixture is opened.
• Are the gas and water supply valves fully open?
• Is the water supply cut off?
• Is the hot water fixture sufficiently open?
• Is the gas being cut off by the gas meter?
(Can other gas devices such as stoves be used?)
• (For LP) Is there enough gas in the tank?
(Can other gas devices such as stoves be used?)
• Is the water drain valve filter clogged? (
p.20)
• (For Units with Optional Remote) Is the power button turned on?
No water is available when
a fixture is opened.
• Is the water supply cut off?
• Is the heater frozen?
• Is the hot water fixture sufficiently open?
The hot water is not the correct
temperature.
Water takes time to become hot
when turning the hot water fixture.
• Have you allowed enough time for the cold water in the
pipes to drain out?
The water is too hot.
• Are the gas and water supply valves fully open?
• (Using the remote controller) Is the water temperature
setting appropriate?
( p.12 and p.13)
• If the water supply temperature is high, it is possible
for the temperature to be higher than the temperature
set on the remote controller.
• If only a small amount of hot water is demanded, it is
possible for the temperature to be higher than the
temperature set on the remote controller.
The water is not hot enough.
• Are the gas and water supply valves fully open?
• (Using the remote controller) Is the water temperature
setting appropriate?
( p.12 and p.13)
• If the amount of hot water required is very high, it is
possible for the temperature to be lower than the temperature set on the remote controller.
Decrease the amount of hot water passing through the unit
and the temperature should stabilize.
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Troubleshooting-2
Temperature
The water is cold when only a
single fixture is open.
• The unit will not heat the water if the flow rate is less than
0.5 gallons per minute.
Open the fixture more or open other fixtures so that a greater
flow passes through the unit, and the unit should begin
heating again.
Fluctuations in hot water
temperatures.
• Set water temperature at 115°F to 120°F. This will allow you
to use a higher flow of hot water thus meeting the minimum
flow requirement of 0.5 gpm.
• Clean the water filter of any debris (
p.20)
Amount of Hot Water
The amount of hot water at a
certain fixture is not constant.
• When hot water is demanded at other fixtures, the
amount available may be reduced. The maximum flow
available from this unit is 6.3 GPM at a 45°F temp. rise.
• Pressure fluctuations and other plumbing conditions can
cause the temperature and pressure at a fixture to be
unstable, but it should stabilize after a short time.
• There are some types of hot water taps that discharges large
volumes of hot water at first but stabilize after time.
• To keep the temperature stable, the heater limits the
amount of water that can flow through it to a small
amount initially, but the amount increases over time.
The amount of hot water in the tub • When hot water is used for other fixtures while filling the
is less/more than the set amount.
bath tub, the tub will not fill as much.
• If there is water in the tub already, or when filling is stopped
and restarted, the tub will fill more.
The flow meter alarm does not
sound even when filled to the set
amount.
• The flow meter alarm is set to sound when hot water
is continuously discharged for the set volume of water.
If mixing valves are used, or if cold water is mixed with hot
water at the fixture, the tub will fill more than the setting
of the flow meter alarm.
Amount of hot water available
has decreased over time.
• Is the water filter clogged? (
p.20)
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Troubleshooting-3
Remote Controller
The light on the power button
does not come on.
The water temperature changes
after a power failure or when the
power is disconnected.
• Has there been a power failure?
• Is the power connected properly?
• The temperature setting and the flow meter alarm setting
may both need to be reset after a power outage.
Sounds
The fan can be heard after
operation is stopped.
A motor can be heard when turning
the unit ON or OFF, when opening
or closing a fixture, or after the unit
has been running for a while.
• These noises indicate the proper operation of devices
which are designed to let the unit reignite more quickly,
and ensure the water temperature is stable.
Other
The Heater stops burning during
operation.
• Are the gas and water supply valves fully open?
• Is the water supply cut off?
• Is the hot water fixture sufficiently open?
• Is the gas being cut off by the gas meter?
(Can other gas devices such as stoves be used?)
• (For LP) Is there enough gas in the tank?
(Can other gas devices such as stoves be used?)
White smoke comes out of the
exhaust vent on a cold day.
• This is normal. The white smoke is actually steam.
The hot water is turbid.
• This is harmless. Small bubbles appear as the air in the
water is heated and depressurized rapidly to
atmospheric pressure.
The water appears blue
The bath tub/wash-basin has turned
blue
• Coloration to a blue color may be noticed from small
traces of copper ion contained in the water and fat
(furring). However, there are not problems concerning
health. Coloration of the bath tub/wash-basin can be
prevented by cleaning frequently.
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Troubleshooting-4
If there is a problem with the unit, a lamp will flash on the front of the unit.
If this occurs, take appropriate measures as listed below.
Lamp
Cause
Action
Unit abnormality
ON
OFF
Check whether the gas valve is open. Close
the hot water fixture, and then open it again.
If the lamp does not begin flashing again, the
problem is solved.
Contact our sales agent if:
• Any other error code appears.
• An error code is indicated again after the above actions were followed.
• There are any other questions.
åÃè·ï\é¶Ç
åÃè·ï\é¶Ç Ç®í≤Ç◊Ç≠ÇæÇ≥Ç¢
Ç®í≤Ç◊Ç≠ÇæÇ≥Ç¢
Check for an Error Code or Flashing Light on the Unit with optional remote
If there is a problem with the unit, a numerical error code will flash on the remote controller.
If this occurs, take appropriate measures as listed below.
Flashing
When an error code appears, the display and the operation light will flash
together.
Remote Controller
Error Code
Cause
Action
Ignition error
Check whether the gas valve is open. Press the power
button to turn the unit off, open a hot water fixture,
and turn the unit back on. If the flashing number
doesn't return the problem is solved.
Abnormal combustion,
low gas supply pressure
Have a professional check the gas supply pressure.
Contact the nearest sales agent.
Abnormal combustion
Contact the nearest sales agent.
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Follow-up Service
Requesting Service
First follow the instructions in the troubleshooting section (p.21 to p.24).
If the error is not corrected, contact our sales agent.
We will need to know:
The Model ................ (check the rating plate)
*See p.4 for the location of the label
Date of purchase ..... (see the warranty)
Details of problem ... (flashing error codes,
etc., in much detail as possible)
Your name, address, and telephone number
Desired date of visit
* A request for service may be rejected if the water heater is installed
in a location where working on the unit may be dangerous. Contact a
plumber.
Warranty
A warranty registration card is included separately.
Be sure that the plumber, date of purchase and other necessary items are filled in.
Read the content carefully, and keep the warranty card in a safe place.
For repairs after the warranty period, there will be a charge on any service, and service will only
be performed if the unit is deemed repairable.
Period of Time for Stocking Repair Parts
The manufacturer will stock repair and maintenance parts for this unit for a minimum of seven
years after production has ceased.
Reinstallation
If you want to reinstall the appliance at a different location, confirm that the gas and power
supply indicated on the rating plate are available at the new location. If you are not sure,
consult the local utility company.
If you move to a region that uses a different type of gas, conversion and adjustment of the
appliance will be necessary. This work must be performed by a certified service agent and will
be charged for even during the warranty period.
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Specifications
• Specifications may be changed without prior notice.
• The capacity may differ slightly, depending on the water
pressure, water supply, piping conditions, and water temperature.
Specifications
Specification
Item
Type
Ignition
Operating Pressure
Minimum Flow Rate
Dimensions
Weight
Water Holding Capacity
Connection Sizes
Power Supply
Materials
Installation
Air Supply/Exhaust
Water Inlet
Hot Water Outlet
Gas Inlet
Supply
Consumption
Casing
Exhaust Vent
Heat Exchanger
Safety Devices
Outdoor, Wall Hanging
Power Vented
Direct Ignition
15-150 PSI
0.5 GPM
23.6"(Height) x 13.8"(Width) x 9.4"(Depth)
44 lbs.
0.2 Gallon
3/4"
3/4"
3/4"
120 VAC (60Hz)
NG : 60W LPG : 60W Freeze Prevention 125W
Zincified Steel Plate/Polyester Coating
Stainless Steel
Copper Sheeting, Copper Tubing
Flame Rod, Thermal Fuse, Lightning Protection
Device (ZNR), Electric Leakage Prevention Device
(GFCI), Overheat Prevention Device, Freezing
Prevention Device, Fan Rotation Detector
Accessories
Anchoring Screws
Performance
Item
Gas Consumption
Maximum Performance
Minimum Performance
Maximum Hot Water Capacity 45°F Rise
Capacity Range
Temperature Settings
Default Temperature Options
NG : 190,000 btuh, LPG : 190,000 btuh
NG : 25,000 btuh, LPG : 25,000 btuh
6.3 Gal./min.
0.5-6.3 Gal./min.
(Using the remote controller)
100-150°F (In 5°F intervals),160°F (12 Options)
120, 130, 140°F (Original is 120°F)
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External outfitting
007
037
001
015
002
034
074
020
071
010
035
004
073
016
003
005
015
002
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External outfitting
Part Nos.
Part Names
Order Nos.
Q'ty/unit
001
AOS Front SET-AS
STA Front SET-AS
SKB7067
SKB7068
1<AOS>
1<STA>
002
003
004
005
Front packing 1
EAA
Caution label 1
EHU
Caution label 2
EAU
Connection diagram label For AOS
EAAL002
EHUK018
EAUK004
EHVK003
2
1
1
1
007
010
015
Case W for AOS
EHV
Grommet
CXP
Front packing L
AAP
EHVA021
CXPA026
AAPL017
1
1
2
016
020
034
Lamp seal plate
DEC
Wiring coupling BXK
Junction box set EHU
DECK008
BXKA022
EHUA008
1
1
1
035
037
Junction box packing EHU
Air thermistor-300 BWC
EHUL002
BWCH003
1
1
071
073
074
Cross recessed truss type3 EVERTIGHT tapping screw with PW 4X12
Cross recessed round-head collar type3 EVERTIGHT tapping screw 4X14
Cross recessed round-head collar N-tapping screw 4X8
EHV
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Combution unit and gas route
162
110
125
100
101
127
126
074
127
107
104
103
165
128
106
169
102
167
105
074
167
074
074
132
117
115
133
145
116
163
111
134
166
112
138
168
134
074
074
113
166
140
074
118
114
168
164
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Combution unit and gas route
Part Nos.
Part Names
Order Nos.
Q'ty/unit
100
101
Combustion tube set EHU-A SET-V
Suction air joint packing DTJ
SKA7365
DTJL001
1
1
102
103
104
105
Ignition plug CZL & packing DLK SET-V
Flame rod & packing DLK SET-V
Plug packing (for B) DLK (NICHI)
Plug mounting plate (for B) DLK
SBC7684
SBC7685
SAB2715
DLKC029
1
1
1
1
106
107
110
Burner sensor Q & packing DWD SET-V
Burner sensor packing
DWD
Main damper 11
DTJ
SBF7103
DWDL005
DTJC041
1
1
1
111
112
113
Fan packing Q
Fan flange
Fan moter
DTJL004
DTJF035
EHUF031
1
1
1
114
115
116
117
118
Bell-mouth φ48
DTJ
Mounting plate for igniter
DTJ
Igniter
CRP
High-voltage cord L350
ALS
Conduit guard packing
DTJ
DTJF042
DTJA015
CRPJ002
ALSJ079
DTJL010
1
1
1
1
1
125
126
127
128
132
Manifold 16 EHU SET-AS
Manifold 24 EHU SET-AS
Manifold seal packing top DTJ
Manifold seal packing side DTJ
Manifold seal packing bottom
DTJ
Gas mech. S16D EDN SET-V
SKA7408
SKA7409
DTJL005
DTJL007
DTJL006
SBE7833
1<LPG>
1<NGA>
1
2
1
1
133
134
138
140
145
O-ring P18
O-ring P28
Gas coupling EHU
Gas fitting 20A set EHU
Conduit R10 EHU
2110903
1648306
EHUE011
EHUE021
EHUJ004
2
2
1
1
1
162
Cross recessed round-head N-tapping screw 4X8
163
164
Cross recessed round-head collar N-tapping screw 4X12
Cross recessed truss machine screw with PW M4X12
165
166
167
Cross recessed round-head type3 EVERTIGHT tapping screw 5X16
Cross recessed hexagon head machine screw M4X8
Cross recessed round-head collar N-tapping screw 4X10
168
169
Cross recessed round-head machine screw M5X12
Cross recessed round-head SPAKmachine screw with guide M4X14
DTJ
DTJ
EHU-A
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Hot-water feed route
400
401
402
406
074
402
402
407
404
162
402
403
409
425
429
465
441
446
427
444
464
426
461
447
445
444
419
417
418
429
415
435
419
419
417
416
448
436
437
452
410
438
410
462
462
467
467
451
(Thermal fuse rounding procedure)
(Front side view)
(Left side view)
401 Thermal fuse fastener
402 Thermal fuse fastener
407
Freeze preventive heater
(Right side view)
402 Thermal fuse fastener
Heater fastener
409
(Rear side view)
402 Thermal fuse fastener
Thermal fuse
403
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Hot-water feed route
Part Nos.
Part Names
Order Nos.
Q'ty/unit
400
401
Heat exchanger & Exhaust box W EHV SET-AS
Thermal fuse fastener
CZL
SKA7367
CZLH005
1
1
402
403
404
406
Thermal fuse fastener
DTJ
Thermal fuse Q DTJ SET-V
Remaining flame safety device 96
Front top packin Q CZR
DTJH002
SBC7703
EHUH001
CZRL001
5
1
1
1
407
409
410
Freeze preventive heater CRP SET-V
Heater fastener
EHK
Freeze preventive heater 3
BGD
SAQ7745
EHKH001
BGDH002
1
1
2
415
416
417
Quick fastener 13-22
Quick fastener 16-25
Quick fastener 16A
SAD6537
SAD6593
6340300
1
1
2
418
419
425
426
427
O-ring P12.5C
O-ring P16C
Water flow sensor set3
DUV
Water outlet magnetic sensor BWC
Water inlet thermistor-300 BWC
3359808
3223302
DUVD019
BWCD090
BWCD097
1
3
1
1
1
429
435
436
437
438
441
Thermistor holding plate
ALS
Water inlet fitting 20A set EHV
Water filter cover DTJ
O-ring P16D FN7032
Water filter (SUS) EGB
Water flow servo set
HKP
ALSD088
EHVD001
DTJD006
BRQL008
EGBD032
HKPD005
2
1
1
1
1
1
444
445
446
447
448
451
452
O-ring P4C
Waterproof cover
CZL
Conduit 86
DZT
Hot-water thermistor-300 BWC
Hot-water outlet fitting 20A
EHU
Drain cock
CRU
Hot-water resistant O-ring P3
1323709
CZLD041
DZTJ008
BWCD096
EHUD004
CRUD003
SAD6633
2
1
1
1
1
1
1
461
462
464
465
467
Cross recessed round-head P TIGHT screw 4X14
Cross & straight recessed truss type3 S TIGHT tapping screw 4X6
Cross recessed truss P TIGHT screw 4X10
Cross recessed round-head P TIGHT screw 4X14
Cross recessed round-head collar type3 EVERTIGHT tapping screw 4X12
EHU
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Electronic control unit
704
706
714
074
708
716
074
712
732
703
707
163
074
711
731
731
074
074
700
163
074
705
163
Remote controller
753
751
Option
kitchen remote controller
(9004223)
752
754
755
Attached set
801
<Special part>
Special part
Special part no.
Installation manual
888
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Electric controller, Remote controller and attached set
Part Nos.
Part Names
700
703
Relay case EHU-C SET-AS
Mounting plate for relay case
704
705
706
707
Relay case cover
EHU
Harness W
EHV
Lamp cable conduit
CRP
Current leakage safety device DTJ
708
711
712
Mounting plate for terminal block
Transformer
EDN
Transformer cover
DJP
714
716
Nylon clamp HP-4N (NK-4N)
Terminal block
CRP
731
732
Cross recessed bind machine screw M3.5X6
Cross recessed round-head N-tapping screw 4X12
751
752
753
754
755
9004223 body AOS QME
Dressed frame body
QHU
Wall packing
QHU
Oar plug 6X25
Cross recessed round wood screw 4.1X25
EHU
DZT
Order Nos.
Q'ty/unit
SHA7841
EHUA007
1
1
EHUA013
EHVJ021
CRPJ014
DTJJ015
1
1
1
1
DZTA006
EDNJ006
DJPA054
1
1
1
7287909
CRPJ017
1
1
QMEJ006
QHUA013
QHUA115
1
1
1
800
AOS packing SET-V
SBP7789
1<AOS>
SBP7791
1<STA>
801
888
STA packing SET-V
Cross recessed round-head machine screw M5X12
Installation manual AOS
(See P.36)
1
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Installation Manual
GAS WATER HEATER
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Potential dangers from accidents during installation and use are divided into the following three
categories. Closely observe these warnings, they are critical to your safety.
Danger
Danger of serious injury or even death as well as danger of fire when the
product is misused by ignoring this symbol.
Warning
Possibility of serious injury or even death as well as possibility of fire when
the product is misused by ignoring this symbol.
Caution
Possibility of bodily injury or damage to property when the product is
misused by ignoring this symbol.
Disconnect
Power
Prohibited
Ground
Be sure to do
Requests to Installers
Caution
• In order to use the water heater safely, read this installation manual carefully,
and follow the installation instructions.
• Failures and damage caused by erroneous work or work not as instructed in this manual are not
covered by the warranty.
• Check that the installation was done properly in accordance with this Installation Manual upon
completion.
• After completion of installation, be sure to hand the Operation Manual (with warranty) to the
customer upon filling in all of the required items.
Installation must conform with local codes, or in the absence of local codes, the National Fuel Gas
Code, ANSI Z223.1/NFPA 54.
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1. Included Accessories
Part
Shape
Cross Recessed
Head Screw
Q’ty
Part
3
184959-105
Installation Manual
(this document)
2. Optional Accessories
Part
Shape
The following accessories are included with the unit.
Check for any missing items before starting installation.
Q’ty
9005694
Remote Controller
Cord (26')
1
9005711
Outdoor Remote
Control
Junction Box
1
Shape
1
The accessories listed below are not
included with the units, but may be necessary
for installation.
Part
Shape
Q’ty
9005696
Ouick Connect Cord
1
Isolator Valves
1
(includes pressure relief valve)
9005698
Recess Box
1
9004223
Remote Controller
1
9004304
Pipe Cover
1
9005712
Remote Controller
Cord (10')
1
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3. Before Installation
Caution
Check the Gas
• Check that the rating plate indicates the correct type of gas.
Check that the gas supply line is sized
for 194,000 Btuh for this unit.
Check the Power
• The power supply required is 120V AC,
at 60Hz. Using the incorrect voltage
may result in fire or electric shock.
Do Not Use Equipment for Purposes Other Than Those Specified
• Do not use for other than increasing the temperature of the water supply,
as unexpected accidents may occur as a result.
Check Water Supply Quality
• If the water supply is hard, acidic or otherwise impure, treat the water with approved methods in
order to ensure full warranty coverage.
Use Extreme Caution if Using With a Solar Pre-Heater
• Using this unit with a solar pre-heater can lead to unpredictable output temperatures and
possibly scalding. If absolutely necessary, use mixing valves to ensure output temperatures do
not get to scalding levels. Do not use a solar pre-heater with the quick-connect multi-system.
4. Choosing Installation Site
* Locate the appliance in an area where leakage from the unit or connections will not result in damage
to the area adjacent to the appliance or to the lower floors of the structure. When such locations
cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed
under the appliance. The pan must not restrict combustion air flow.
Danger
• This water heater is for outdoor installation only.
Never install it indoors.
Do not enclose the termination with corrugated
metal or other materials.
This will cause carbon monoxide
poisoning and a potential fire
hazard.
Indoor
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Caution
• Install the water heater in a location where it is free from obstacles and
stagnant air.
• Consult with the customer concerning the location of installation.
• Do not install the water heater near staircases or emergency exits.
• Avoid places where fires are common, such as those where gasoline,
benzene and adhesives are handled, or places in which corrosive
gases (ammonia, chlorine, sulfur, ethylene compounds, acids) are
present.
Using the incorrect voltage may result in fire or cracking.
• Do not install the water heater where the exhaust will blow on
outer walls or material not resistant to heat. Also consider the
surrounding trees and animals.
The heat and moisture from the water heater may cause discoloration of walls and resinous materials, or corrosion of aluminum
materials.
• Do not locate the vent termination directed towards a window
or any other structure which has glass or wired glass
facing the termination.
• Avoid installation in places where dust or debris will accumulate.
Dust may block the air-supply opening, causing the performance of the device fan to drop and incomplete combustion to
occur as a result.
• Install in a location where the exhaust gas flow will not be
affected by fans or range hoods.
• Take care that noise and exhaust gas will not affect neighbors.
• Avoid installation in places where special chemical agents
(e.g., hair spray or spray detergent) are used.
Ignition failures and malfunction may occur as a result.
• Avoid installation where the unit will be exposed to excessive
winds.
• Before installing, make sure that the vent termination will have
the proper clearances according to the National Fuel Gas Code
(ANSI Z223.1).
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5. Installation Clearances
Caution
Before installing, check for the following:
Install in accordance with relevant building and mechanical codes, as well as any local, state
or national regulations.
Check
Illustration
Surrounding the area of installation
24" (12")
or more
combustible
* ( ) indicates the distance when installing a heat insulating board (incombustible material other than metal, with
thickness of 0.1" or more) or "section of building effectively finished with incombustible material."
Note, however, that combustion failure may occur to the
unit as exhaust gas reflects from the wall. Provide clearance of 24" or more in the front of the unit to facilitate
inspection and repair.
0.4" or more
combustible
combustible
Required Clearances From Heater
• Maintain the following clearance from both combustible
and non-combustible materials.
36" or more
6" or more
combustible
6" or more
• When installing the unit in a common side corridor, provide a clearance of 47" or more in front of the unit.
• Set the bottom edge of the exhaust port about 84" from
the corridor floor.
47" or more
about 84"
Handrail
common side
corridor
24" or more
• When installing the unit on a balcony, etc., secure an
evacuation route of 24" or more in width.
• Provide clearance of 24" or more in front of the unit to
facilitate inspection and repair. Do install the unit such as
the wall of the second floor where the unit is out of reach.
combustible
Item
Handrail
balcony, etc.
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Clearance Requirements from Vent Terminations to Building Openings
* All clearance requirements are in accordance with ANSI Z21.10.3a-2003 and the National Fuel Gas
Code, ANSI Z223.1.
Vent Terminal
Area Where Terminal
is Not Permitted
Air Supply Inlet
Clearance
A=
Above grade, veranda, porch, deck,or balcony
B=
Window or door that may be opened
C=
Permanently closed window
Vertical clearance to ventilated soffit located above
the terminal within a horizontal distance of 2
feet from the center of the terminal
D=
E=
F=
G=
H=
I=
J=
K=
L=
M=
Outdoor Installation
(See p.41)
12" (12")
12" (36")
*
*
Unventilated soffit
Outside corner
Inside corner
Each side of center line extended above
meter/regulator assembly
Service regulator vent outlet
Nonmechanical air supply inlet or combustion air inlet
to any other appliance
*
*
*
3' within a height 15' above
meter/regulator assembly
3'
Mechanical air supply inlet
Above paved sidewalk or paved driveway located on
public property
Under veranda, porch, deck, or balcony
3' above if within 10' (6')
12" (36")
(7' ***)
* (12"- Canada Only****)
()= indicates clearances required in Canada
*Maintain clearances in accordance with local installation codes and the requirements of the gas supplier
***A vent shall not terminate directly above a sidewalk or paved driveway that is located between two
single family dwellings and serves both dwellings.
****Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor.
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Clearance Requirements from Vent Terminations to Building Openings
* All clearance requirements are in accordance with ANSI Z21.10.3a-2003 and the National Fuel Gas
Code, ANSI Z223.1.
Vent Clearances When Heater is
Installed in a Recess Box
Outdoor Clearances to Opening
into Any Building
Maintain the following clearances to any
opening in any building:
Illustration
• 1' below, 1' horizontally from, or 1' above
any door, operable window, or gravity air
inlet into any building.
3' above any forced air inlet within 10'.
1'
1'
1'
3'
• 1' below, 1' horizontally from, or 1' above
any door, operable window, or gravity air
inlet into any building.
3' above any forced air inlet within 10'.
1'
1'
1'
3'
(recess box installation with cover removed)
* For Installations in Canada, clearances are as follows: To windows, doors, & gravity air inlets: 36".
To forced air inlets: 6'.
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6. Installation
Securing to the wall
• The weight of the device will be applied to the wall. If the strength of the wall is not sufficient, reinforcement must be done to prevent the transfer of vibration.
• Do not drop or apply unnecessary force to the device when installing. Internal parts may
be damaged and may become highly dangerous.
• Install the unit on a vertical wall and ensure that it is level.
Item
Check
Locating Screw Holes
Caution
• When installing with bare hands,
take caution to not inflict injury.
• Be careful not to hit electrical
wiring, gas, or water piping while
drilling holes.
Illustration
Location of Screw Hole
Mounting Bracket
(upper)
1. Drill a single screw hole, making sure to hit a stud.
2. Insert and tighten the screw and hang the unit by
the upper wall mounting bracket.
3. Determine the positions for the remaining four screws
(two for the top bracket and two for the bottom), and
remove the unit.
4. Drill holes for the remaining four screws.
Locating Screw Holes
Tapping Screw
Mounting
5. Hang the unit again by the first screw, and then
insert and tighten the remaining four screws.
6. Take waterproofing measures so that water does
not enter the building from screws mounting the
device.
Structure
• Make sure the unit is installed securely so that it will
not fall or move due to vibrations or earthquakes.
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7. Gas Piping
Follow the instructions from the gas supplier.
The appliance and its individual shutoff valve must be disconnected from the gas supply piping system
during any pressure testing of that system at test pressures in excess of 1⁄2 psig (3.5 kPa).
The Appliance must be isolated from the gas supply piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1⁄2
psig (3.5 kPa).
The appliance and its gas connections must be leak tested before placing the appliance in operation.
The inlet gas pressure must be within the range specified. This is for the purposes of input adjustment.
In order to choose the proper size for the gas line, consult local codes or the National Fuel Gas Code ANSI
Z223.1.
Gas Pressure
Size the gas line according to total btuh demand
of the building and length from the meter or
regulator so that the following supply pressures
are available even at maximum demand:
Natural Gas Supply Pressure
Min. 4" WC
Max. 10.5" WC
LP Gas Supply Pressure
Min. 8" WC
Max. 14" WC
Gas Meter
Select a gas meter capable of supplying the entire
btuh demand of all gas appliances in the building.
Gas Connection
• Do not use piping with a diameter smaller than
the inlet diameter of the water heater.
• Gas flex lines are not recommended unless they
are rated for 190,000 btuh.
• Install a gas shutoff valve on the supply line.
• Use only approved gas piping materials.
Measuring Gas Pressure
In order to check the gas supply pressure to the unit, a
tap is provided on the gas inlet. Remove the hex head
philips screw from the tap, and connect a manometer
using a silicon tube.
In order to check the gas manifold pressure, a pair of
taps are provided on the gas valve inside the unit.
The pressure can be checked either by removing the hex
head philips screw and connecting a manometer with a
silicon tube, or by removing the 1/8" NPT screw with an
allen wrench and connecting the appropriate pressure
gauge.
Sample Gas Line
Tankless Water Heater
(190,000 Btuh)
Barbecue
(50,000 Btuh)
Outlet E
Outlet A
Clothes Dryer
(35,000 Btuh)
10'
10'
Outlet C
Section 4
5'
Section 3 Section 2
5'
5'
5'
Section 1
10'
5'
Outlet D
10'
Natural Gas
Meter
5'
Outlet B
Gas Fireplace
(25,000 Btuh)
Gas Range Stove
(65,000 Btuh)
**See next page for the pipe capacity charts.
Instructions
1. Size each outlet branch starting from the furthest
using the Btuh required and the length from the
meter.
2. Size each section of the main line using the
length to the furthest outlet and the Btuh
required by everything after that section.
Sample Calculation
Outlet A: 45' (Use 50'), 50,000 Btuh requires 1/2"
Outlet B: 40', 65,000 Btuh requires 1/2"
Section 1: 45' (Use 50'), 115,000 Btuh requires 3/4"
Outlet C: 30', 35,000 Btuh requires 1/2"
Section 2: 45' (Use 50'), 150,000 Btuh requires 3/4"
Outlet D: 25' (Use 30'), 25,000 Btuh requires 1/2"
Section 3: 45' (Use 50'), 175,000 Btuh requires 1"
Outlet E: 25' (Use 30'), 190,000 Btuh requires 3/4"
Section 4: 45' (Use 50'), 365,000 Btuh requires 1 1/4"
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Gas Line Sizing
Adapted from UPC 1997
Maximum Natur
Natural Gas Delivery Capacity in Cubic Feet per Hour (0.60 Specific Gravity, 0.5" WC Pressure Drop)
Length in Feet
10'
20'
30'
40'
50'
60'
70'
80'
90'
100'
125'
174
61
56
53
50
44
66
73
96
82
119
127
118
111
104
93
138
152
200
171
249
363
239
222
208
197
174
259
286
377
323
470
684
358
404
428
490
456
532
588
775
663
965
1404
536
605
641
734
798
880
993
1445
2103
683
1161
1033
1165
1234
1413
1315
1536
1696
1913
4050
2784
2235
1646
2449
2703
3049
4437
1857
1966
2253
2096
3563
6455
2910
3284
3476
3983
4329
3705
4778
5391
6299
11,412 7843
4261
4808
5090
6338
5831
5425
6995
7893
16,709 11,484 9222
5936
6698
7091
8830
8123
7557
9745
23,277 15,998 12,847 10,995
Contact the Gas Supplier for Btu/Cubic Ft. of the Supplied Gas. 1000 BTU/Cubic Ft. is a Typical Value
Pipe
Size
1/2"
3/4"
1"
1 1/4"
1 1/2"
2"
2 1/2"
3"
3 1/2"
4"
Maximum Liquified P
Petroleum (Undiluted) Delivery Capacity in Thousands of Btuh (0.5" WC Pressure Drop)
Pipe
Size
1/2"
3/4"
1"
1 1/4"
1 1/2"
2"
10'
275
567
1071
2205
3307
6221
20'
189
393
732
1496
2299
4331
30'
152
315
590
1212
1858
3465
40'
129
267
504
1039
1559
2992
50'
114
237
448
913
1417
2646
Length in Feet
60'
70'
80'
103
89
96
217
185
196
409
346
378
834
771
724
1275 1181 1086
2394 2205 2047
90'
83
173
322
677
1023
1921
100'
78
162
307
630
976
1811
125'
69
146
275
567
866
1606
150'
63
132
252
511
787
1496
200'
55
112
213
440
675
1260
** For reference only. Please consult gas pipe manufacturer for actual pipe capacities.
Maximum Capacity of Flex TracPipe in Cubic Feet per Hour of Natural Gas (0.60 Specific Gravity, 0.5" WC Pressure Drop)
R
Pipe
Size
3/4"
1"
1 1/4"
1 1/2"
2"
10'
206
383
614
1261
2934
20'
147
269
418
888
2078
30'
121
218
334
723
1698
40'
105
188
284
625
1472
50'
94
168
251
559
1317
Length in Feet
60'
70'
86
80
153
141
227
209
471
509
1203
1114
80'
75
132
194
440
1042
90'
71
125
181
415
983
100'
67
118
171
393
933
150'
55
94
137
320
762
200'
48
82
116
277
661
Maximum Capacity of Flex TracPipe in Thousands of Btuh Liquified Petroleum ( 0.5" WC Pressure Drop)
R
Pipe
Size
3/4"
1"
1 1/4"
1 1/2"
2"
10'
325
605
971
1993
4638
20'
232
425
661
1404
3285
30'
191
344
528
1143
2684
40'
166
297
449
988
2327
50'
149
265
397
884
2082
Length in Feet
60'
70'
136
126
241
222
359
330
745
805
1902
1761
80'
118
208
307
696
1647
90'
112
197
286
656
1554
100'
106
186
270
621
1475
150'
87
143
217
506
1205
200'
76
129
183
438
1045
** For reference only. Please consult gas pipe manufacturer for actual pipe capacities.
TracPipe® is a registered trademark of Omega Flex.
Maximum Capacity for Gas Flex Connectors in Cubic Feet per Hour of Natural Gas (0.60 Specific Gravity, 0.5" WC Pressure Drop)
Pipe
Size
1/2"
3/4"
1"
1 1/4"
12"
180
24"
150
290
581
1470
36"
125
255
512
1200
Length in Inches
48"
106
215
442
1130
60"
93
197
397
960
72"
86
173
347
930
Maximum Capacity for Gas Flex Connectors in Thousands of Btuh Liquified Petroleum ( 0.5" WC Pressure Drop)
Pipe
Size
1/2"
3/4"
1"
1 1/4"
12"
288
24"
240
465
930
2352
36"
200
409
825
1920
Length in Inches
48"
169
344
708
1808
60"
149
315
638
1536
72"
137
278
556
1488
** For reference only. Please consult gas pipe manufacturer for actual pipe capacities.
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8. Water Piping
Ask a qualified plumber to perform the installation
of the plumbing. Observe all applicable codes.
This appliance suitable for potable water and space heating applications. Do not use this appliance if any part has
been underwater. Immediately call a qualified service technician to inspect the appliance and replace any part of the
control system and gas control which has been under water.
If the water heater is installed in a closed water supply 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 a local plumbing inspector on how to control this situation.
A pressure relief valve must be installed near the hot water outlet that is rated in accordance with and complying with
either The Standard for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22, or
The ANSI/ASME Boiler and Pressure Vessel Code, Section IV ( Heating Boilers ). This pressure relief valve must
be capable of an hourly Btu rated temperature steam discharge of 190,000 Btuh. Multiple valves may be used. The
pressure relief capacity must not exceed 150 psig. No valve shall be placed between the relief valve and the water
heater. The relief valve must be installed such that the discharge will be conducted to a suitable place for disposal
when relief occurs. No reducing coupling or other restriction may be installed in the discharge line. The discharge line
must be installed to allow complete drainage of both the valve and the line. If this unit is installed with a separate
storage vessel, the separate vessel must have its own temperature and pressure relief valve. This valve must also
comply with The Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI
Z21.22. (in the U.S. only). A temperature relief valve is not required, but if one is used, do not install the valve with the
probe directly in the flow of water. This may cause unwarranted discharge of the valve.
Piping and components connected to the water heater shall be suitable for use with potable water.
Toxic chemicals, such as those used for boiler treatment, shall not be introduced into the potable water.
A water heater used to supply potable water may not be connected to any heating system or components previously
used with a nonpotable water heating appliance.
When water is required in one part of the system at a higher temperature than in the rest of the system, means such
as a mixing valve shall be installed to temper the water to reduce the scald hazard.
• Flush water through the pipe to clean out metal powder, sand and dirt before connecting it.
• Take appropriate heat insulation measures (e.g., wrapping with heat insulation materials, using electric heaters)
according to the climate of the region to prevent the pipe from freezing.
• Use a union coupling or flexible pipe for connecting the pipes to reduce the force applied to the piping.
• Do not use piping with a diameter smaller than the coupling.
• When feed water pressure is too high, insert a depressurizing valve, or take water hammer prevention measure.
• Avoid using joints as much as possible to keep the piping simple.
• Avoid piping in which an air holdup can occur.
• If installing the unit on a roof:
• About lower-level hot water supply
If the unit is installed on a roof to supply water to the levels below, make sure that the water pressure supplied to
the unit does not drop below 29 psi. It may be necessary to install a pump system to ensure that the water pressure
is maintained at this level.
Check the pressure before putting the unit into operation.
Failure to supply the proper pressure to the unit may result in noisy operation, shorter lifetime of the unit, and may
cause the unit to shut down frequently.
Supply water piping
• Do not use PVC piping.
• Mount a check valve and a shut off valve (near
the inlet).
• In order for the client to use the water heater
comfortably, 98.1 to 491 kPa (14 to 70 PSI) of
pressure is needed from the water supply.
Be sure to check the water pressure. If the water
pressure is low, the water heater cannot perform
to its full capability, and may become a source of
trouble for the client.
Hot water piping
• Do not use lead or PVC piping.
• The longer the piping, the greater the heat loss.
Try to make the piping as short as possible.
• Use mixing valves with low water resistance.
Use shower heads with low pressure loss.
• If necessary, use a pump or other means to ensure that the supply water pressure to the inlet
of the heater does not fall below 29 PSI when
the maximum amount of water is being demanded. Also install a pressure meter on the inlet. If this is not done, local boiling will occur inDrain piping
side the water heater causing abnormal sounds
• Expansion water may drop from the pressure
and decreasing the durability of the heat exprevention device and wet the floor. If neceschanger.
sary, provide drain piping or use a drain hose to
remove the water.
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9. Plumbing Applications
Recirculation System
Aquastat Wiring
Hot Water Return
Cold Water Supply
Use Honeywell Aquastat
(Model L6006A or L6006C)
Fixtures
Check
Valve
105
Pump
Expansion Tank
(Install According
to Local Codes)
R
AC120
Check Valve
B 5
Pump
Pressure
Relief
Valve
(See notes for Sizing)
Aquastat
W
Shutoff Valve
8-10 Gal.
Storage Tank
(To Alleviate Cold
Water Sandwich)
Hot Water
Drain
Neutral
Ground
Live
* Size the pump to provide at least 1.58 GPM through the system at 10 Ft of Head plus
piping losses. Check the maintenance monitors on the unit to make sure the pump
is providing that much flow.
** Adjust the flow using a gate valve and verify the flow rate with the maintenance monitors.
Heating System
Cold Water Supply
Backflow
Preventer
(Optional)
Pressure
Reducing
Valve
(Optional)
Hot Water Return
Check
Valve
Pump
(See notes for Sizing)
Check Valve
Aquastat
Shutoff Valve
Pressure
Relief Valve
Expansion
Tank
(Install According
to Local Codes)
Drain
Shutoff
Valve
Hot Water
Boiler Drain Valve
Air Scoop
(Optional)
Hydronic Heat
Exchanger or
Radiant Heat
Piping
Heating
Controls
For Baseboard
Applications:
Please contact
sales agent for
compatibility.
Temp. &
Press. Gauge
(Optional)
* Size the pump to provide at least 1.58 GPM through the system at 10 Ft of Head plus
piping losses. Check the maintenance monitors on the unit to make sure the pump
is providing that much flow.
** Adjust the flow using a gate valve and verify the flow rate with the maintenance monitors.
For Space Heating Purposes:
Cold Water Supply
Tempered Potable Hot Water
Mixing Valve
Hot Water for Heating
If the system requires water
for space heating at a higher
temperature than for other
uses, means such as a mixing
valve shall be provided to
temper the water for the other
uses to help prevent scalding.
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10. Electrical Wiring
Consult a qualified electrician
for the electrical work.
Do not connect electrical power to the unit until all electrical wiring has been completed.
This appliance must be electrically grounded in accordance with local codes, or in the absence of local codes,
with the National Electrical Code, ANSI/NFPA 70. In Canada, the latest CSA C22.1 Electrical Code.
Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper
and dangerous operation.
Verify proper operation after servicing.
Field wiring to be performed at time of appliance installation.
Caution
Do not turn on the power until the electrical wiring is finished.
This may cause electrical shock or damage to the equipment to occur.
• The electrical supply required by the water
heater is 120V AC at 60 Hz.
The power consumption may be up to 125W or
higher if using optional accessories.
Use an appropriate circuit.
• Do not disconnect the power supply when not in
use. When the power is off, the freeze prevention in the water heater will not activate,
resulting in possible freezing damage.
Ground
• To prevent electrical shock, provide a ground
with resistance less than 100 . An electrician
should do this work.
• A grounding screw is provided on the back of
the junction box lid.
• Do not let the power cord contact the gas piping.
Tie the redundant power cord outside the
water heater. Putting the redundant length
of cord inside the water heater may cause
electrical interference and faulty operation.
Junction Box
Do not connect the ground to the city water
or gas piping. Do not tie the ground to a telephone line.
Breaker Installation
• Mount a device which shuts off the electrical
path automatically (leakage breaker) when
electrical leakage is detected.
Power Cord
Junction Box Lid
(back)
Ground
1. Unscrew the junction box lid and open.
2. Push the power cord through the bottom of the unit.
3. Connecct the live and neutral wires to the black and
white wire in the junction box.
4. Screw the ground wire to the ground screw on the
back of the junction box lid and close junction box.
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Remote Controller
• Applicable Model
Remote controller
9004223
Install the remote controller according to the instructions in the Installation Guide (p. 54).
• The unit can be programmed so that it will default to one of four temperatures if the remote controller
is removed (140, 130, 120°F). To change the default temperature, the remote controller must be
initially installed, and removed after programming.
* Changing the default temperature setting:
1. Within the first ten minutes of connecting electrical power to the unit, but before pressing the
Power On/Off button, hit the up [ ] or down [ ] button on the remote controller. This will put
the unit into maintenance writer mode. If pressing either of these buttons does not put the unit
into maintenance writer mode, unplug the unit for sixty seconds and try again.
2. The maintenance monitor item number will flash on the display. (the initial item number will be “99”).
3. The up [ ] and down [ ] buttons can be used to change the maintenance writer item number.
4. Choose a temperature from the chart below and set the 14 and 15 maintenance writers according to
the chart. Pressing the Flow Meter Alarm Set button for 0.5 seconds will switch the indicated item
number from “OFF” to “ON” or “ON” to “OFF”. If the Priority lamp is flashing when an item number
is displayed, this indicates an “ON” setting for that item number, and if the Priority lamp is off, the
item number is off.
*Do not change the other item numbers. This may cause a fault in the water heater.
5. After setting the 14 and 15 item numbers for the desired temperature, press and hold the up [ ]
and down [ ] buttons together for five seconds to confirm the new settings. The remote controller will emit a tone when the settings are confirmed. If this is not done, the unit will not put the
setting changes into effect. After confirming the setting, remove the remote controller to initiate
the default temperature setting.
Note:The setting changes can be cancelled by pressing the Power On/Off button before confirming the
settings, or if the unit is left alone for ten minutes without confirming the settings. If the default
setting needs to be changed again, disconnect the electrical power to the unit, reconnect it and
follow this procedure again.
Temp.
Item No.
140°F
140°F
130°F
120°F*
14
ON
OFF
ON
OFF
15
ON
ON
OFF
OFF
* Factory Default Setting
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Connecting Remote Controller Cord to Unit
•
•
•
•
Keep the remote controller cord away from the freeze prevention heaters in the unit.
Tie the redundant cord outside the water heater. Do not put the extra length inside the equipment.
The remote controller cord can be extended up to 300' with 18AWG wire.
Use a Y type terminal with a resin sleeve. (Without the sleeve, the copper wire may corrode and
cause problems).
• Be sure to hand tighten when screwing to the terminal block. Power tools may cause damage to the
terminal block.
Remote controller cord
• For extensions, a 26' cord can be purchased (Part # 9005694) or use 18AWG wire.
• Install according to the National Electrical Code and all applicable local codes.
1. Leave enough slack so that the remote controller
cord will not be damaged if the unit is removed from
the wall.
2. Remove the front cover of the heater (4 screws).
3. Pass the remote controller cord through the wiring
throughway and into the unit.
4. Connect the Y terminals at the end of the remote
controller cord to the terminal block.
5. Secure the remote controller cord with a clamp.
6. Replace the front cover.
Terminal
Block
Clamp
Wiring
Throughways
18AWG Wire
Changing Set Temperature
13
0°
FC
on
ne
c
tor
130°F tag
140
°
FC
onn
ecto
r
1. Disconnect power to the heater.
2. Remove the front cover of the heater (4 screws).
• To set the temperature to 130°F
Remove the connector with 130°F tag.
• To set the temperature to 140°F
Remove the connector with 140°F tag.
3. Replace the front cover of the heater (4 screws).
4. Reconnect power to the heater.
140°F tag
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11. Maintenance
Periodically check the following to ensure proper
operation of the water heater.
•
•
•
•
•
The burner flame must be checked periodically for a proper blue color and consistency.
If the flame does not appear normal, the burner may need to be cleaned.
If the burner needs to be cleaned, it must be performed by a qualified service technician.
Do not obstruct the flow of combustion and ventilation air.
The pressure relief valve must be operated once a year to ensure that it is functioning properly
and there is no obstruction. Turn the power off to the unit before opening the relief valve, and
make sure that water draining out of the valve will not cause any damage.
• If the relief valve discharges periodically, it may be due to thermal expansion in a closed water
system. Contact the water supplier or a local plumbing inspector on how to correct this situation.
Do not plug the relief valve.
• See Operation Manual for further maintenance.
Warning: There is a scald potential if the output temperature is set too high.
Should overheating occur, or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.
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 of the control system and any gas control
which has been under water.
Periodically check and clean the filter inside the cold water inlet of the unit.
12. Trial Operation
The installer should test operate the unit, explain to
the customer how to use the unit, and give the owner
this manual before leaving the installation.
• Preparation ........... (1) Open a hot water fixture to confirm that water is available, and then close
the fixture.
(2) Open the gas supply valve, turn on the power supply, and turn on the Power
On/Off button on the remote controller (the Operation lamp will turn on).
(1) Open a hot water fixture and confirm that the Burner On lamp comes on, and that hot water is
being produced. (If necessary, repeat until the air in the gas piping is bled out).
* White smoke may be noticed from the exhaust vent during cold weather. However, this is not a
malfunction of the unit.
* If an “11” error code appears on the remote controller, turn the unit off and then back on
again, and then open a hot water fixture again.
(2) Change the temperature setting on the remote controller and check that the water temperature changes.
• If the water heater does not operate normally, refer to “Troubleshooting” in the Operation Manual.
* After the trial operation, clean the filter in the cold water inlet.
Caution
Handling after trial operation
• If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of
the water out of the unit and the plumbing system to prevent the unit and system from freezing,
and bleed the gas out of the gas line.
Freezing is not covered by the warranty.
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Lighting Instructions
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.
1. Read the safety information in the installation manual or on the front of the water heater.
2. Turn off all electrical power to the unit.
3. Do not attempt to light the burner by hand.
4. Turn the gas control manual valve (external to the unit) clockwise to the off position.
5. Wait five minutes to clear out any gas. If the smell of gas remains, stop, and follow the instructions
on page 3 of this manual.
6. Turn the gas control manual valve counterclockwise to the on position.
7. Turn on electric power to the unit.
8. The unit will now operate whenever hot water is called for. If the unit will not operate, follow the
shutdown instructions and call a service technician.
Shutdown Instructions
1. Stop any water demand.
2. Turn off electric power.
3. Turn the gas control manual valve clockwise to the off position.
Should overheating occur, or the gas supply fail to shut off, turn off the manual control valve to the appliance.
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13. Dimensions
10.8"
10.5"
7.7"
7"
1.5"
13.3"
1.8"
6.1"
6.3"
4.3"
2.5"
(VIEW FROM TOP)
GAS INLET (3/4")
HOT WATER OUTLET(3/4")
WIRING THROUGHWAYS
13.8"
4.7"
9.5"
0.4"
0.4"
0.4"
13.1"
9.8"
2"
1.5"
LED
23.6"
22.3"
24.5"
1.2"
UPPER WALL MOUNT BRACKETS
EXHAUST TERMINAL
1.7"
COLD WATER INLET(3/4")
AIR INLET
4.7"
2.4"
AIR INLET
0.4"
1.9"
LOWER WALL MOUNT BRACKETS
BOTTOM OF CASE
1.9"
1.7"
0.4"
BOTTOM
OF CASE
3.3"
COLD WATER INLET
WIRING THROUGHWAYS
WATER DRAIN VALVE
(WATER FILTER)
HOT WATER OUTLET
GAS INLET
WATER DRAIN VALVE
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WIRING DIAGRAM
THERMAL FUSE
BK
V
W
G
O
W
BR
BL
(VCC)
SM
MAIN WATER
FLOW CONTROL
VALVE
(VCC)
(Fully open)
(GND)
LS
8 BK
7 V
6 W
5 G
4 O
3 W
2 BR
1 BL
1
BL
W
BL
BL
THERMAL FUSE
1
BL
BL
1
BL
<199 Model Only>
Other Unit in Quick Connect Multi System
MAIN CIRCUIT
BOARD
BURNER THRMISTOR
1
<CN59>
MAIN FLOW
SENSOR
(Pulse)
(VCC)
(GND)
QS
Y
R
BL
AIR INLET
THERMISTOR
3
2
1
BK 2
BK 1
WATER INLET
THERMISTOR
BK
BK
W 4 W
3
2
W 1 W
WATER OUTLET
THERMISTOR
R
BK
W
G
BL
BL
1
2
3
4
5
6
<CN184>
(For Quick Connect Multi System Only)
O 3 6 BK
2 5 Y
W1 4 R
<CN63>
W 2 W
W 1 W
R
BK
W
G
BL
BL
Minimum Manifold Pressure Set Button
Maximum Manifold Pressure Set Button
1
2
3
4
5
6
7
<CN184>
<190,194 Model Only>
WATER OUTLET
THERMISTOR
184
W
<CN38>
<CN102>
1
2
3
4
5
6
7
R
Manifold Gas Pressure
Increase Button
Manifold Gas Pressure
Decrease Button
R 1 2 BL
3 4 W
5 6 O
7 8 BK
9 10 V
11 12 G
13 14 BL
15 16
17 18 BR
19
W 20 Y
BK 21 22 BL
MAIN CIRCUIT
BOARD
8
7
6
5
4 BK
3 W
2
1 W
W 3 W
2
W 1 W
<199 Model Only>
R
R
4W
Y1 2
W 3 4 BR
5 6
R7 8
9 10
11 12 R
13 14
15 16
17 18 W
19 20
Y
R
BL
1
2
W 3
<CN75> 23
R
BK
W
G
BL
BL
R
BK
W
G
BL
BL
Quick Connect Cord(Optional)
(R) W
(BK) G
(W) R
(G) BK
BL
BL
R (W)
BK (G)
W (R)
G (BK)
BL
BL
1
2
3
4
5
6
1
2
3
4
5
6
BK
W
<CN78>
BL 1
2
1
BK
W
1
2
3
4
5
6
BURNING LED
<190,194 Model Only>
140 F SETTING WIRE
130 F SETTING WIRE
BL
R
1
2
1
2
R
R
Y
1
2
1
2
BR
Y
DU
<CN10>
<CN89>
BL 3
2
BL 1
1 2 BK
R 3 4 BK
5 6 W
BL 7 8 GY
W GW
1 2 3 <CN1>
4 5 6
BK WW
BL
GY
BL
R
W
BK
6
5
4
3
2
1
R
BL
GY
BL
R
W
BK
BK
SV
11
Q1
BK
GAS VALVES
<194,199 Model Only>
FREEZE PREVENTION
SWITCH
GY
W
SV
12
Q2
GY
W
W
BK BK
<199 ModelOnly>or<Optional>
SV
10
4 3
2 1
0
W
<199 Model Only>
WW
REMOTE CONTROLLER
BL
BL
2
1
BL
BL
R
<CN92>
CURRENT LEAKAGE
SAFETY DEVICE
(GFCI)
TRANSFORMER
R
<CN27>
6 5 4 3 2 1
POWER CIRCUIT
BOARD
W
RY O
BL
BK
W
<CN102>
BK
W
2
1
BK
W
BK
W
G
W
COLOR CODING
W : White
BL : Blue
R : Red
GY : Gray
BK : Black
G : Green
V : Violet
BR : Brown
O : Orange
Y : Yellow
BK
W
1
2
3
WATER VALVE
FOR BY-PASS
SV
0
R
ELECTRODE
IG
HIGH-LIMIT SWITCH
6
5
Y 4
3
2
W 1
<CN100>
BK
G
R
<199 Model Only>
O 7
<AC120V>
3
2
1
W
W
1
2
W
W
CIRCULATION PUMP
(OPTIONAL)
W
W
1
2
W
W
P
<CN103>
GROUND
BK 1
R 2
FLAME ROD
FM
GROUND
FAN MOTOR
HOT
W (Vs)
W
6
5
W
BL(GND)
R (Vcc)
Y (FG)
O (Vsp)
BL 4
R 3
Y 2
O 1
BL
R
Y
O
W
W
1
2
W
W
W
W
1
2
W
W
W
W
1
2
W
W
FREEZE PROTECTION
HEATERS
NEUTRAL
AC120V
PRIMARY
SECONDARY
AC100V
(199 Model Only)
RELAY 7
10A(FUSE)
CIRCULATION PUMP
ANTI-FROST HEATER
RELAY 8
VARISTOR
RELAY 9
RELAY 3
SV0
RELAY 2
SV1
RELAY 4
DC90V
IGNITER
IG
SV2
RELAY 5
WV
DC140V
ARRESTER VARISTOR
SOLENOID VALVE 0
SOLENOID VALVE 2
DC90V
WATER VALVE FOR
BY-PASS
(199 Model Only)
POWER
CONTROLLER
GND
HIGH LIMIT
SWITCH
SOLENOID VALVE 1
DC140V
FAN COMBUTION FAN
DC15V(2)
A
B
C
PRIMARY
SECONDARY
DC15V(1)
B
A
15V POWER CIRCUIT
INPUT AND
OUTPUT PULSE
WATER FLOW SENSOR
WATER FLOW SERVO
FAN
PULSE
CONTROL
CIRCUIT
C
FREEZE PREVENTION SWITCH
THERMAL FUSE
WATER OUTLET THERMISTOR
RELAY 2
RELAY 3
RELAY 4
RELAY 5
RELAY
DRIVING
CIRCUIT
WATER INLET THERMISTOR
CPU
CENTRAL
PROCESSING
UNIT
AIR INLET THERMISTOR
RELAY 7
RELAY 8
BURNER SENSOR
RELAY 9
DU
GAS PROPORTION VALVE
POWER CONTROL CIRCUIT
FLAME DETECTING CIRCUIT
FR FLAME ROD
GND
5V POWER CIRCUIT
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For Installers:
Read this installation guide
carefully before carrying out
installation.
Remote Controller
Installation Guide
Note
Do not connect power to the water heater before the remote controller has been properly
installed.
Included Parts List
Part Name
Quantity
Remote Controller
Wall Packing
Phillips Roundhead Wood Screw
Wall Anchor
1
1
2
2
Connecting Wire
Wall Packing
Phillips Roundhead
Wood Screw
Wall Anchor
Do not disassemble the remote controller.
Notes on the Installation Location
• The remote should be installed in an easily
accessible location.
• Avoid installing in a place where water may
splash on the controller.
• Avoid locations where special chemical
agents (e.g., benzene, fatty and oily detergents) are used.
• Avoid outdoor installation, or installation in an
indoor location where it will be exposed to
direct sunlight.
9004223
Remote Controller
Connection of Remote Controller Cord
White Connector
To Remote controller
Y-shaped terminals
(two-core)
To Water heater
* Confirm the connection with the labels at
both ends of the remote controller cord.
• A 26' cord can be purchased separately
(Part # 9005694).
• The remote controller cord can be extended up to 300 ft. by splicing the cord
and using 18 gauge wire to extend the
cord to the appropriate length.
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Installation
1. Apply Wall Packing to the rear side of the
remote controller.
2. Connect the remote controller wires to the
separate remote controller cord.
3. Remove the cover of the remote control,
mark the location of the screw holes, and
drill holes for the wall anchors.
4. Insert the wall anchors, screw the remote
control to the wall and replace the cover.
Remote
Control
Wires
Wall Packing
(take off the paper)
Wall Anchor
Rear Side of
Remote Controller
Remote Controller Cord
Phillips Roundhead
Wood Screw
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Installing the Remote Controller Outdoor Junction Box
1. Insert the remote controller wires through the
wall pipe and secure the wall pipe to the
remote controller. Locate the remote controller
wall packing, slide it over the pipe and wires,
and apply it to the rear side of the remote.
5. Slide the box nut over the remote controller
wires and screw it onto the wall pipe.
Wall Pipe
Rear side of remote controller
Box Nut
Remote
Controller
Wires
Wall Packing
Secure the wall pipe
firmly into the remote
controller.
Take off the
paper.
2. Drill a 1-1/4" hole in the wall where the
remote controller will be installed.
* Do not install the remote controller in a
location that is exposed to moisture, direct
sunlight, or chemical agents. These can
damage the remote controller.
6. Connect the remote controller wires to the
separate remote controller cord inside the box.
Wind the excess remote controller wire on the
provided hooks as illustrated below.
(Wind the
excess wire
here.)
Remote Controller
Wires
3. Insert the wall pipe containing the remote
controller wires through the hole.
Junction Box
4. Slide the junction box packing and the junction
box over the remote controller wires and wall
pipe protruding from the outside wall.
Remote Controller
Cord
Wall packing
Wall pipe
Take out the pipe about
3/4" from the wall.
Junction Box
Tie the redundant length of the remote
controller cord outside the junction box.
7. Close the junction box.
Box Nut
Remote
Controller
Wires
Take off the paper.
Junction Box Packing
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