Energy Smart Gas
Water Heater
with the Flame Lock™
Safety System
Installation
WARNING: If the information in these
instructions 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.
Instructions and
Use & Care Guide
NATURAL GAS MODELS ONLY
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
To obtain technical, warranty, or service assistance during or after
the installation of this water heater, visit our website at:
• 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.
or call toll free
1-877-817-6750
When calling for assistance, please have the following
information ready:
1.
2.
3.
4.
5.
Model number
7 digit product number
Serial number
• If you cannot reach your gas
supplier, call the fire department.
Date of installation
Place of purchase
Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
Table of Contents ......................................................
2
INSTALLER:
•
AFFIX THESE INSTRUCTIONS TO OR ADJACENT
TO THE WATER HEATER.
OWNER:
•
RETAIN THESE INSTRUCTIONS AND WARRANTY
6510374
FOR FUTURE REFERENCE. RETAIN THE ORIGINAL
RECEIPT AS PROOF OF PURCHASE.
W10100870
February 2006
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INSTALLING YOUR GAS WATER HEATER
instructions, you should not proceed but have a qualified
Important Information About
person perform the installation of this water heater.
Massachusetts code requires this water heater to be
This Water Heater
installed in accordance with Massachusetts Plumbing and
This gas water heater was manufactured to voluntary
safety standards to reduce the likelihood of a flammable
vapor ignition incident. New technology used in meeting
these standards makes this product more sensitive to
installation errors or improper installation environments.
Please review the Installation Checklist found at the end of
the installation instructions section and make any required
installation upgrades or changes.
Fuel Gas Code 248 CMR Section 2.00 and 5.00.
A data plate identifying your water heater can be found next
to the gas control valve/thermostat. When referring to your
water heater, always have the information listed on the data
plate readily available.
Retain your original receipt as proof of purchase.
Unpacking the Water Heater
Consumer Information
WARNING
This water heater is design-certified by CSA International
as a Category I, non-direct vented water heater which takes
its combustion air either from the installation area or from
air ducted to the unit from the outside.
Excessive Weight Hazard
Use two or more people to move and install
water heater.
This water heater must be installed according to all local
and state codes or, in the absence of local and state codes,
the “National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-
latest edition. This is available from the following:
Failure to do can result in back or
other injury.
CSA America, Inc.
8501 East Pleasant Valley Road
Cleveland, OH 44131
IMPORTANT: Do not remove any permanent instructions,
labels, or the data label from either the outside of the water
heater or on the inside of water heater panels.
National Fire Protection Agency
1 Batterymarch Park
•
•
•
•
Remove exterior packaging and place installation com-
ponents aside.
Quincy, MA 02269
Inspect all parts for damage prior to installation and
start-up.
Check your phone listings for the local authorities having
jurisdiction over your installation.
Completely read all instructions before attempting to
assemble and install this product.
Consumer Responsibilities
After installation, dispose of/recycle all packaging
materials.
This manual has been prepared to acquaint you with the
installation, operation, and maintenance of your gas water
heater and provide important safety information in these
areas.
Read all of the instructions thoroughly before attempting
the installation or operation of this water heater.
Do not discard this manual. You or future users of this
water heater will need it for future reference.
Service to the Flame Lock™ Safety System should only be
performed by a qualified person.
Examples of a qualified person include: licensed plumbers,
authorized gas company personnel, and authorized
service personnel.
IMPORTANT: This water heater has a resettable thermal
switch installed as part of the Flame Lock™ Safety System.
DO NOT attempt to disable or modify this feature in any way.
IMPORTANT: The manufacturer and seller of this water
heater will not be liable for any damages, injuries, or
deaths caused by failure to comply with the installation and
operating instructions outlined in this manual.
If you lack the necessary skills required to properly install
this water heater, or you have difficulty following the
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Location Requirements
WARNING
WARNING
Carbon Monoxide Poisoning Hazard
Do not install in a mobile home.
Doing so can result in death or
carbon monoxide poisoning.
FLAMMABLES
Flammable Vapors
The Flame Lock™ Safety System is designed to reduce the
risk of flammable vapor-related fires. The patented system
protects your family by trapping the burning vapors within
the water heater combustion chamber through the special
flame-trap. The burning vapors literally “burn themselves
out” without escaping back into the room. In the event of a
flammable vapor incident, the Flame Lock™ Safety System
shuts off the gas supply to the water heater’s burner and
pilot, preventing re-ignition of any remaining flammable
vapors in the area. This will disable the water heater until
the system is reset. Note: Not following these instructions
and/or an inadequate air supply can cause the Flame
Lock™ Safety System to disable the water heater. Please
make required installation and venting/air supply changes
prior to resetting the system.
FIRE AND EXPLOSION HAZARD
Can result in serious injury or death
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
Storage of or use of gasoline or other
flammable vapors or liquids in the vicinity
of this or any other appliance can result in
serious injury or death.
IMPORTANT: This water heater has a resettable thermal
switch installed as part of the Flame Lock™ Safety System.
DO NOT attempt to disable or modify this feature in any way.
Read and follow water heater warnings and
instructions.
Do not use or store flammable products such as gasoline,
solvents, or adhesives in the same room or area near the
water heater. If such flammables must be used, all gas
burning appliances in the vicinity must be shut off and their
pilot lights extinguished. Open the doors and windows for
ventilation while flammable substances are in use.
If flammable liquids or vapors have spilled or leaked in the
area of the water heater, leave the area immediately and
call the fire department from a neighbor’s home. Do not
attempt to clean the spill until all ignition sources have been
extinguished.
Do not store combustible materials (boxes, magazines,
clothes, etc.) on or in close proximity to the water heater.
Site Location
•
Select a location near the center of the water piping
system. The water heater must be installed indoors
and in a vertical position on a level surface. DO NOT
install in bathrooms, bedrooms, or any occupied room
normally kept closed.
•
Locate the water heater as close to the chimney or gas
vent as practical. Consider the vent system piping and
combustion air supply requirements when selecting the
water heater location. The venting system must be able
to run from the water heater to termination with minimal
length and elbows.
•
Locate the water heater near the existing gas piping.
If installing a new gas line, locate the water heater to
minimize the pipe length and elbows.
NOTE: This water heater must be installed according to all
local and state codes or, in the absence of local and state
codes, the “National Fuel Gas Code”, ANSI Z223.1(NFPA
54)-latest edition.
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Figure 1
Air-moving
Devices
IMPORTANT: The water heater should be located in
an area where leakage of the tank or connections
will not result in damage to the area adjacent to the
water heater or to lower floors of the structure. Due
to the normal corrosive action of the water, the tank
will eventually leak after an extended period of time.
Also any external plumbing leak, including those from
improper installation, may cause early failure of the tank
due to corrosion if not repaired. If the homeowner is
uncomfortable with making the repair a qualified person
should be contacted. A suitable metal drain pan should
be installed under the water heater as shown below,
to help protect the property from damage which may
occur from condensate formation or leaks in the piping
connections or tank. The pan must limit the water level
to a maximum depth of 1-3/4” and be two inches wider
than the heater and piped to an adequate drain. NOTE:
The pan must not restrict combustion air flow. Locate the
water heater near a suitable indoor drain. Outside drains
are subject to freezing temperatures which can obstruct
the drain line. The piping should be at least 3/4” ID and
pitched for proper drainage. Under no circumstances will
the manufacturer or seller of this water heater be held
liable for any water damage which is caused by your
failure to follow these instructions.
Exhaust
Fan
Reverse flow
of gases
Clearances and Accessibility
NOTE: Minimum clearances from combustible materials
are stated on the data plate adjacent to the gas control
valve/thermostat of the water heater.
The water heater is certified for installation on a
combustible floor.
•
IMPORTANT: If installing over carpeting, the carpeting
must be protected by a metal or wood panel beneath
the water heater. The protective panel must extend
beyond the full width and depth of the water heater by
at least three inches (76.2mm) in any direction; or if in
an alcove or closet installation, the entire floor must be
covered by the panel.
Figure 2 may be used as a reference guide to locate
the specific clearance locations. A minimum of 24
inches of front clearance should be provided for
inspection and service.
•
1 3/4” Maximum
Pipe to
adequate
drain
Figure 2
Minimum Clearance
Locations
At least 2” greater than the
diameter of the water heater
Vent
Top
to
•
•
•
The water heater should be located in an area not
subject to freezing temperatures. Water heaters located
in unconditioned spaces (i.e., attics, basements,
etc.) may require insulation of the water piping and
drain piping to protect against freezing. The drain and
controls must be easily accessible for operation and
service. Maintain proper clearances as specified on the
data plate.
Back
Sides
ceiling
Front
24” minimum
for service
Sides
Top
View
Do not locate the water heater near an air-moving
device. The operation of air-moving devices such as
exhaust fans, ventilation systems, clothes dryers,
fireplaces, etc., can affect the proper operation of
the water heater. Special attention must be given to
conditions these devices may create. Flow reversal of
flue gases may cause an increase of carbon monoxide
inside of the dwelling.
State of California
NOTE: The water heater must be braced, anchored, or
strapped to avoid moving during an earthquake.
Contact local utilities for code requirements in your area
or call 1-877-817-6750 and request instructions.
If the water heater is located in an area that is
subjected to lint, dirt, and oil, it may be necessary
to periodically clean the flame-trap (see “External
Inspection & Cleaning of the Flame-trap,” Page 22).
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3. Install a ground joint union between the gas control
valve/thermostat and the manual shut-off valve. This
is to allow easy removal of the gas control valve/
thermostat.
4. Turn the gas supply on and check for leaks. Test all
connections by brushing on an approved noncorrosive
leak-detection solution. Bubbles will show a leak.
Correct any leak found.
Gas Supply
WARNING
Figure 3
Gas Piping
Manual Gas
Shut-off Valve
Explosion Hazard
Use a new CSA approved gas supply line.
Install a shut-off valve.
Do not connect a natural gas water heater to
an L.P. gas supply.
Ground
Joint
Union
Check with local
utility for
minimum height
Do not connect an L.P. gas water heater to a
natural gas supply.
3” Minimum
Failure to follow these instructions can
Drip Leg
result in death, explosion, or
Gas Pressure
carbon monoxide poisoning.
IMPORTANT: The gas supply pressure must not exceed
the maximum supply pressure as stated on the water
heater’s data plate. The minimum supply pressure is for the
purpose of input adjustment.
Gas Requirements
IMPORTANT: Read the data plate to be sure the water
heater is made for the type of gas you will be using in
your home. This information will be found on the data
plate located near the gas control valve/thermostat. If the
information does not agree with the type of gas available,
do not install or light. Call your dealer.
Gas Pressure Testing
IMPORTANT: This water heater and its gas connection
must be leak tested before placing the appliance in
operation.
NOTE: An odorant is added by the gas supplier to the gas
used by this water heater. This odorant may fade over an
extended period of time. Do not depend upon this odorant
as an indication of leaking gas.
•
If the code requires the gas lines to be tested at a
pressure exceeding 14” W.C., the water heater and its
manual shut-off valve must be disconnected from the
gas supply piping system and the line capped.
If the gas lines are to be tested at a pressure less than
14” W.C., the water heater must be isolated from the
gas supply piping system by closing its manual shut-off
valve.
Gas Piping
•
The gas piping must be installed according to all local and
state codes or, in the absence of local and state codes, the
“National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-latest
edition.
U.L. recognized fuel gas and carbon monoxide (CO)
detectors are recommended in all applications and should
be installed using the manufacturer’s instructions and local
codes, rules, or regulations.
Table 1 on page 7 provides a sizing reference for commonly
used gas pipe materials. Consult the “National Fuel Gas
Code” for the recommended gas pipe size of other materials.
Refer to Figure 3
NOTE: When installing gas piping, apply approved pipe joint
compound.
1. Install a readily accessible manual shut-off valve in the
gas supply line as recommended by the local utility.
Know the location of this valve and how to turn off the
gas to this unit.
NOTE: Air may be present in the gas lines and could
prevent the pilot from lighting on initial start-up. The gas
lines should be purged of air by a qualified person after
installation of the gas piping system.
2. Install a drip leg (if not already incorporated as part of
the water heater) as shown. The drip leg must be no
less than three inches long for the accumulation of dirt,
foreign material, and water droplets.
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Table 1
Natural Gas Pipe Capacity Table (Cu. Ft./Hr.)
Capacity of gas pipe of different diameters and lengths in cu. ft. per hr. with pressure drop of 0.3 in. and specific gravity
of 0.60 (natural gas).
Nominal Iron Pipe
Size, in.
Length of Pipe, Feet
80
10
20
30
40
50
60
70
90 100 125 150 175 200
40 38 34 31 28 26
84 79 72 64 59 55
1/2 132
92
73
63
56
3/4 278 190 152 130 115 105
50
46
96
43
90
1
520 350 285 245 215 195 180 170 160 150 130 120 110 100
1-1/4 1050 730 590 500 440 400 370 350 320 305 275 250 225 210
1-1/2 1600 1100 890 760 670 610 560 530 490 460 410 380 350 320
After the length of pipe has been determined, select the pipe size which will provide the minimum cubic feet per hour
required for the gas input rating of the water heater. By formula:
Gas Input of Water Heater (BTU/HR)
Cu. Ft. Per Hr. Required=
Heating Value of Gas (BTU/FT³)
The gas input of the water heater is marked on the water heater data plate. The heating value of the gas (BTU/FT3)
may be determined by consulting the local natural gas utility.
Additional tables are available in the latest edition of the "National Fuel Gas Code", ANSI Z223.1.
Combustion air must be free of acid-forming chemicals
Combustion Air Supply and
such as sulfur, fluorine, and chlorine. These elements are
found in aerosol sprays, detergents, bleaches, cleaning
Ventilation
solvents, air fresheners, paint, and varnish removers,
refrigerants, and many other commercial and household
WARNING
products. When burned, vapors from these products form
highly corrosive acid compounds. These products should
Carbon Monoxide Warning
not be stored or used near the water heater or air inlet.
Follow all the local and state codes or, in
Combustion and ventilation air requirements are
the absence of local and state codes, the
determined by the location of the water heater. The water
“National Fuel Gas Code”, ANSI Z223.1
heater may be located in either an open (unconfined) area
(NFPA 54)- latest edition to properly install
or in a confined area or small enclosure such as a closet or
small room. Confined spaces are areas with less than 50
cubic feet for each 1,000 BTUH of the total input for all gas-
using appliances.
vent system.
Failure to do so can result in death,
explosion, or carbon monoxide poisoning.
IMPORTANT: Air for combustion and ventilation must not
come from a corrosive atmosphere. Any failure due to
corrosive elements in the atmosphere is excluded from
warranty coverage.
The following types of installation (not limited to the
following) will require outdoor air for combustion due to
chemical exposure and may reduce but not eliminate the
presence of corrosive chemicals in the air:
•
•
•
•
•
beauty shops
photo processing labs
buildings with indoor pools
water heaters installed in laundry, hobby, or craft rooms
water heaters installed near chemical storage areas
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Unconfined Space
Figure 4
Opening Locations-
Confined Spaces
12” maximum
A water heater in an unconfined space uses indoor air for
combustion and requires at least 50 cubic feet for each
1,000 BTUH of the total input for all gas appliances. The
table below shows a few examples of the minimum square
footage (area) required for various BTUH inputs.
Closet
or
other
Permanent
openings to
confined
space
the outside or
additional
Table 2
rooms within
the building
Minimum Square
BTUH
Input
Typical Room
with 8' Ceiling
Feet with
8' Ceiling
30,000
45,000
60,000
75,000
90,000
105,000
120,000
188
281
375
469
563
657
750
844
9 x 21
14 x 20
15 x 25
15 x 31
20 x 28
20 x 33
25 x 30
28 x 30
12” maximum
All Air from Inside the Building
When additional air is to be provided to the confined area
from additional room(s) within the building, the total volume
of the room(s) must be of sufficient size to properly provide
the necessary amount of fresh air to the water heater
and other gas utilization equipment in the area. If you are
unsure that the structure meets this requirement, contact
your local gas utility company or other qualified agency for
a safety inspection.
135,000
Each of the two openings shall have a minimum free area
of 1 square inch per 1,000 BTUH of the total input rating of
all gas utilization equipment in the confined area, but not
less than 100 square inches (Figure 5).
IMPORTANT:
•
The area must be open and be able to provide the
proper air requirements to the water heater. Areas that
are being used for storage or contain large objects may
not be suitable for water heater installation.
•
Water heaters installed in open spaces in buildings with
unusually tight construction may still require outdoor
air to function properly. In this situation, outside air
openings should be sized the same as for a confined
space.
Confined
Space
•
Modern home construction usually requires supplying
outside air into the water heater area.
Permanent
Openings
Confined Space
For the correct and proper operation of this water heater,
ample air must be supplied for the combustion, ventilation,
and dilution of flue gases. Small enclosures and confined
areas must have two permanent openings so that sufficient
fresh air can be drawn from outside of the enclosure. One
opening shall be within 12 inches of the top and one within
12 inches of the bottom of the enclosure as shown in
Figure 4.
1 square
inch/1000
BTUH
(minimum
100 sq. In.)
Figure 5
All Air from Inside Building
Confined Space Installation
The size of each opening (free area) is determined by the
total BTUH input of all gas utilization equipment (i.e., water
heaters, furnaces, clothes dryers, etc.) and the method by
which the air is provided. The BTUH input can be found on
the water heater data plate. Additional air can be provided
by two methods:
1. All air from inside the building.
2. All air from outdoors.
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All Air from Outdoors
Gable vent
to outdoors
Outdoor fresh air can be provided to a confined area either
directly or by the use of vertical and horizontal ducts. The
fresh air can be taken from the outdoors or from crawl or
attic spaces that freely communicate with the outdoors.
Attic or crawl spaces cannot be closed and must be
properly ventilated to the outside.
Install above
insulation
Confined
Space
Outlet
air to attic
1 Sq. inch per
4000 BTUH
Ductwork must be of the same cross-sectional area as
the free area of the opening to which they connect. The
minimum dimension of rectangular air ducts cannot be less
than three inches.
Inlet air
from the
crawl
Alternate
Air Inlet
The size of each of the two openings is determined by the
method in which the air is to be provided. Refer to Table
3 to calculate the minimum free area for each opening.
Figures 6, 7, and 8 are typical examples of each method.
space
Open
1 sq. inch per
4000 BTUH
Foundation
Vent
Louvers and Grilles
Figure 6
In calculating free area for ventilation and combustion
air supply openings, consideration must be given to the
blocking effect of protection louvers, grilles, and screens.
These devices can reduce airflow, which in turn may
require larger openings to achieve the required minimum
free area. Screens must not be smaller than 1/4” mesh. If
the free area through a particular design of louver or grille
is known, it should be used in calculating the specified free
area of the opening. If the design and free area are not
known, it can be assumed that most wood louvers will allow
20 - 25% of free area while metal louvers and grilles will
allow 60 - 75% of free area.
All Air from Outdoors; Inlet Air from Ventilated
Crawl Space/Outlet Air to Ventilated Attic
Gable vent
to outdoors
Install above
insulation
Outlet air
Confined
Space
to attic
1 Sq. inch per
4000 BTUH
Louvers and grilles must be locked open or interconnected
with the equipment so that they are opened automatically
during equipment operation.
Inlet air duct
1 sq. inch per
4000 BTUH
Keep louvers and grilles clean and free of debris or other
obstructions.
12” maximum
Figure 7
Table 3
All Air from Outdoors
Through Ventilated Attic
Minimum Free Area of Permanent Openings for Ventilation and
Combustion Air Supply - All Air from Outdoors Only.
Based on the total BTUH input rating for all gas utilizing equipment
within the confined space.
1 sq. inch
per
Minimum Free Area
Reference
2000 BTUH
Opening
Source
Per Opening
(sq. in.)
Drawing
Direct to
outdoors
1 Square inch per 4000
Figure 6
BTUH
Confined
Space
Outlet
Inlet
Vertical ducts
Figure 7
Figure 8
1 Square inch per 4000
BTUH
Outdoor
1 Square inch per 2000
BTUH
Horizontal ducts
Air Ducts
Example: A water heater with an input rate of 50,000 BTUH using
horizontal ducts would require each opening to have a minimum
free area of 25 square inches.
Minimum free area = 50,000 BTUH x 1 sq. in. / 2000 BTUH = 25
Sq. Inches.
1 sq. Inch
Figure 8
These openings connect directly with the outdoors
through a ventilated attic, a ventilated crawl space, or
through an outside wall.
*
per
All Air from Outdoors
Using Horizontal Ducts
2000 BTUH
Consult the local codes of your area for specific ventilation
and combustion air requirements.
9
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Vent Pipe System
Vent Pipe Size
This water heater uses a non-direct, single-pipe vent
system to remove exhaust gases created by the burning of
fossil fuels. Air for combustion is taken from the immediate
water heater location or is ducted in from the outside (see
“Combustion Air Supply and Ventilation”).
It is important that you follow the guidelines in these
instructions for sizing a vent pipe system. If a transition to
a larger vent size is required, the vent transition connection
must be made at the drafthood outlet.
Vent Connectors
1. Type B, Double Wall, U.L. Listed Vent Pipe.
2. Single Wall Vent Pipe.
This water heater must be properly vented for the removal
of exhaust gases to the outside atmosphere. Correct
installation of the vent pipe system is mandatory for the
proper and efficient operation of this water heater and is an
important factor in the life of the unit.
Maintain the manufacturer’s specified minimum clearance
from combustible materials when using type B double wall
vent pipe.
The vent pipe must be installed according to all local and
state codes or, in the absence of local and state codes, the
“National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-latest
edition. The vent pipe installation must not be obstructed so
as to prevent the removal of exhaust gases to the outside
atmosphere.
Vent connectors made of type B, double wall vent pipe
material may pass through walls or partitions constructed
of combustible material if the minimum listed clearance is
maintained.
Maintain a six inch minimum clearance from all combustible
materials when using singlewall vent pipe.
IMPORTANT: The use of vent dampers is not
recommended by the manufacturer of this water heater.
Although some vent dampers are certified by CSA
International, this certification applies to the vent damper
device only and does not mean they are certified for use on
this water heater.
IMPORTANT: Single wall vent pipe cannot be used for
water heaters located in attics and may not pass through
attic spaces, crawl spaces or any confined or inaccessible
location. A single wall metal vent connector cannot pass
through any interior wall.
U.L. recognized fuel gas and carbon monoxide (CO)
detectors are recommended in all applications and should
be installed using the manufacturer’s instructions and local
codes, rules, or regulations.
When installing a vent connector, please note the following:
•
•
•
Install the vent connector avoiding unnecessary bends,
which create resistance to the flow of vent gases.
IMPORTANT: If you lack the necessary skills required
to properly install this venting system, you should not
proceed, but get help from a qualified person.
Install without dips or sags with an upward slope of at
least 1/4-inch per foot.
Joints must be fastened by sheet metal screws or other
approved means. It must be supported to maintain
clearances and prevent separation of joints and
damage.
Drafthood Installation
Align the legs of the drafthood with the slots provided.
Insert the legs and secure the drafthood to the water
heater’s top with the four screws provided as shown in
Figure 9. Do not alter the drafthood in any way. If you are
replacing an existing water heater, be sure to use the new
drafthood supplied with the water heater.
•
•
•
The length of the vent connector cannot exceed 75% of
the vertical vent height.
The vent connector must be accessible for cleaning,
inspection, and replacement.
Vent connectors cannot pass through any ceiling, floor,
firewall, or fire partition.
Figure 9
Drafthood Installation
IMPORTANT: Existing vent systems must be inspected for
obstructions, corrosion, and proper installation.
Sheet Metal Screws (four provided)
Drafthood
Legs
Legs
Slots
Slots
Jacket top
Install the drafthood with
the four screws provided.
10
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Listed Lined
Chimney
Chimney Connection
IMPORTANT: Before connecting a vent to a chimney,
make sure the chimney passageway is clear and free of
obstructions. The chimney must be cleaned if previously
used for venting solid fuel appliances or fireplaces. Also
consult local and state codes for proper chimney sizing and
application or, in the absence of local and state codes, the
“National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-latest
edition.
2 ft. minimum above any
object within10 ft.
horizontally
3 ft. minimum
*
•
The connector must be installed above the extreme
bottom of the chimney to prevent potentially blocking
the flue gases.
Slope up
1/4 in.
per ft.
minimum
•
•
•
The connector must be firmly attached and sealed to
prevent it from falling out.
To aid in removing the connector, a thimble or slip joint
may be used.
The connector must not extend beyond the inner edge
of the chimney as it may restrict the space between it
and the opposite wall of the chimney (Figure 10).
2 ft. minimum above any
object within10 ft.
horizontally
3 ft. minimum
Do not terminate the vent connector in a chimney that has
not been certified for this purpose. Some local codes may
prohibit the termination of vent connectors in a masonry
chimney.
*
Vertical Exhaust Gas Vent
**
Vertical exhaust gas vents must be installed with U.L. listed
type B vent pipe according to the vent manufacturer’s
instructions and the terms of its listing.
Vent
connector
slope up
1/4 in. per ft.
minimum
It must be connected to the water heater’s drafthood by
a listed vent connector or by directly originating at the
drafthood opening.
Vertical gas vents must terminate with a listed cap or
other roof assembly and be installed according to their
manufacturer’s instructions.
**
5 in. minimum
Gas vents must be supported to prevent damage, joint
separation, and maintain clearances to combustible
materials (Figures 11 and 12).
IMPORTANT: This gas vent must be terminated in a vertical
position to facilitate the removal of the burnt gases.
*
An unused chimney flue or masonry enclosure may be
used as a passageway for the installation of a gas vent
(Figure 12).
Slope up
1/4 in.
Common (combined) venting is allowable with vertical type
B vent systems and lined masonry chimneys.
per ft.
minimum
Figures 10-12 are examples of vent pipe system
installations and may or may not be typical for your specific
application. Consult the “National Fuel Gas Code”, NFPA
54, ANSI Z223.1-latest edition and the guidelines set forth
by prevailing local codes.
Maintain vent pipe clearance requirements to local, state
and/or the “National Fuel Gas Code”, ANSI Z223.1(NFPA
54)-latest edition.
*
** NFPA 211, Standard for Chimneys, Fireplaces, Vents,
and Solid Fuel-Burning Appliances states that these
chimneys are intended to be installed in accordance with
the installation instructions provided with each chimney
support assembly. Minimum air space clearance to
combustible materials should be maintained as marked on
the chimney sections.
11
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Figure 13
Water System Piping
Water Piping Installation
Piping Installation
In a closed system use a
thermal expansion tank
Piping, fittings, and valves should be installed according to
the installation drawing (Figure 13). If the indoor installation
area is subject to freezing temperatures, the water piping
must be protected by insulation.
Cold Water
Supply to Fixtures
Hot Water
Outlet
Main water supply
Pressure reducing
valve with bypass
Cold Water
Inlet Valve
Water supply pressure should not exceed 80% of the
working pressure of the water heater. The working pressure
is stated on the water heater’s data plate. If this occurs,
a pressure limiting valve with a bypass may need to be
installed in the cold water inlet line. This should be placed
on the supply to the entire house in order to maintain equal
hot and cold water pressures.
Union
Temperature and
Pressure Relief Valve
Discharge line
6” maximum
above drain
Drain line
3/4” ID
IMPORTANT: Heat cannot be applied to the water fittings
on the heater as they may contain nonmetallic parts. If
solder connections are used, solder the pipe to the adapter
before attaching the adapter to the hot and cold water
fittings.
minimum
1” Minimum
Massachussetts:
Install a vacuum relief
in cold water line per
section 19 MGL 142.
Metal
Drain Pan
Drain
1 3/4” depth maximum
Figure 14
Typical Tempering
Valve Installation
IMPORTANT: Always use a good grade of joint compound
and be certain that all fittings are drawn up tight.
Cold
Water
Inlet
1. Install the water piping and fittings as shown in Figure
13. Connect the cold water supply (3/4” NPT) to the
fitting marked “C”. Connect the hot water supply (3/4”
NPT) to the fitting marked “H”.
IMPORTANT: Some models may contain energy saving
heat traps to prevent the circulation of hot water within the
pipes. Do not remove the inserts within the heat traps.
Follow the tempering
valve manufacturer’s
instructions.
Hot
Water
Outlet
2. The installation of unions in both the hot and cold water
supply lines is recommended for ease of removing the
water heater for service or replacement.
3. The manufacturer of this water heater recommends
installing a tempering valve or an anti-scald device
in the domestic hot water line as shown in Figure 14.
These valves reduce the point-of-use temperature of
the water by mixing cold and hot water and are readily
available for use.
Tempered water
to fixtures
Tempering valve
(Set to 120°F)
4. If installing the water heater in a closed water system,
install an expansion tank in the cold water line as
specified under “Closed System/Thermal Expansion”
(Page 13).
5. Install a shut-off valve in the cold water inlet line. It
should be located close to the water heater and be
easily accessible. Know the location of this valve and
how to shut off the water to the heater.
6. A temperature and pressure relief valve must be
installed in the opening marked “Temperature and
Pressure (T & P) Relief Valve” on the water heater.
A discharge line must be added to the opening of
the T & P Relief Valve. Follow the instructions under
“Temperature and Pressure Relief Valve,” page 13.
7. After piping has been properly connected to the water
heater, remove the aerator at the nearest hot water
faucet. Open the hot water faucet and allow the tank
to completely fill with water. To purge the lines of
any excess air, keep the hot water faucet open for
3 minutes after a constant flow of water is obtained.
Close the faucet and check all connections for leaks.
Please note the following:
•
The system should be installed only with piping that is
suitable for potable (drinkable) water such as copper,
CPVC, or polybutylene. This water heater must not be
installed using iron piping or PVC water piping.
•
•
Use only pumps, valves, or fittings that are compatible
with potable water.
Use only full flow ball or gate valves. The use of valves
that may cause excessive restriction to water flow is
not recommended.
•
•
•
Use only 95/5 tin-antimony or other equivalent solder.
Any lead based solder must not be used.
Piping that has been treated with chromates, boiler
seal, or other chemicals must not be used.
Chemicals that may contaminate the potable water
supply must not be added to the piping system.
12
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Closed System/Thermal Expansion
Figure 15A
Temperature and Pressure
Relief Valve Installation
Periodic discharge of the temperature and pressure relief
valve may be due to thermal expansion in a closed water
supply system. The water utility supply meter may contain a
check valve, backflow preventer or water pressure reducing
valve. This will create a closed water system. During
the heating cycle of the water heater, the water expands
causing pressure inside the water heater to increase. This
may cause the temperature and pressure relief valve to
discharge small quantities of hot water. To prevent this, it
is recommended that a diaphragm-type expansion tank
(suitable for potable water) be installed on the cold water
supply line. The expansion tank must have a minimum
capacity of 1.5 U.S. gallons for every 50 gallons of stored
water. Contact the local water supplier or plumbing
inspector for information on other methods to control this
situation.
Optional location
some models only
Temperature and
Pressure Relief Valve
Discharge line 3/4” maximum
Do not cap or plug
6” Maximum
Drain
Drain Pan
IMPORTANT: Do not plug or remove the temperature and
pressure relief valve.
For protection against excessive pressures and
temperatures, a temperature and pressure relief valve must
be installed in the opening marked “T & P RELIEF VALVE”
(see Figure 15A). This valve must be design certified by
a nationally recognized testing laboratory that maintains
periodic inspection of the production of listed equipment or
materials as meeting the requirements for Relief Valves and
Automatic Shut-off Devices for Hot Water Supply Systems,
ANSI Z21.22. The function of the temperature and pressure
relief valve is to discharge water in large quantities in the
event of excessive temperature or pressure developing
in the water heater. The valve’s relief pressure must not
exceed the working pressure of the water heater as stated
on the data plate.
Temperature and Pressure
Relief Valve
WARNING
IMPORTANT: Only a new temperature and pressure relief
valve should be used with your water heater. Do not use an
old or existing valve as it may be damaged or not adequate
for the working pressure of the new water heater. Do not
place any valve between the relief valve and the tank.
Explosion Hazard
If the temperature and pressure relief valve
is dripping or leaking, have a qualified
person replace it.
Examples of a qualified person include:
licensed plumbers, authorized gas company
personnel, and authorized service
personnel.
Do not plug valve.
Do not remove valve.
Failure to follow these instructions can
result in death, or explosion.
The Temperature & Pressure Relief Valve:
•
•
•
Must not be in contact with any electrical part.
Must be connected to an adequate discharge line.
Must not be rated higher than the working pressure
shown on the data plate of the water heater.
The Discharge Line:
•
Must not be smaller than the pipe size of the relief
valve or have any reducing coupling installed in the
discharge line.
•
Must not be capped, blocked, plugged or contain any
valve between the relief valve and the end of the dis-
charge line.
•
•
•
Must terminate a maximum of six inches above a floor
drain or external to the building.
Must be capable of withstanding 250°F (121°C) without
distortion.
Must be installed to allow complete drainage of both
the valve and discharge line.
13
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•
•
Pumps, valves, piping and fittings must be compatible
with potable water.
Figure 15B
T&P Relief Valve Insulation
A properly installed flow control valve is required to pre-
vent thermosiphoning. Thermosiphoning is the result
of a continuous flow of water through the air handler
circuit during the off cycle. Weeping (blow off) of the
temperature and pressure relief valve (T & P) or higher
than normal water temperatures are the first signs of
thermosiphoning.
T&P Relief Valve Insulation
Manual Relief Lever
•
•
The domestic hot water line from the water heater
should be vertical past any tempering valve or supply
line to the air handler to remove air bubbles from the
system. Otherwise, these bubbles will be trapped in the
air handler heat exchanger coil, reducing the efficiency.
Do not connect the water heater to any system or
components previously used with non-potable water
heating appliances when used to supply potable water.
T&P Relief Valve
T&P Relief Valve
Drain Line
T&P Relief Valve and Pipe Insulation (Some Models)
1. Locate the T&P Relief Valve on the water heater.
2. Locate the slit running the length of the insulation.
Some jurisdictions may require a backflow preventer
in the incoming cold water line. This may cause the
temperature and pressure relief valve on the water heater
to discharge or weep due to expansion of the heated water.
A diaphragm-type expansion tank suitable for potable
water will normally eliminate this weeping condition. Please
read and follow the manufacturer’s instructions for the
installation of such tanks.
3
Spread this slit open and slip it over the T&P Relief Valve.
See Figure 15B. Apply gentle pressure to the insulation
to ensure it is fully seated on the T&P Relief Valve. Once
sealed secure the insulation with a section of tape.
IMPORTANT: The insulation or tape should not block
or cover the T&P Relief Valve drain opening. Also the
insulation or tape should not block or hinder access to the
T&P Relief valve manual relief lever.
Also see “Water System Piping” (Page 12) for additional
instructions on the safe and correct installation and
operation of this water heater.
4. Next locate the hot water (outlet) & cold water (inlet) pipes
to the water heater.
5. Select one of the sections of pipe insulation and locate the
slit that runs the length of the insulation.
Figure 16
Typical Tempering Valve Installation
Combination Space Heating/Potable
Water Heating System
6. Spread the slit open at the base of the insulation and slip
it over the cold water (inlet) pipe. Apply gentle
pressure along the length of the insulation to ensure it is
fully seated around the cold water pipe. Also ensure that
the base of insulation is flush with the water heater. Once
seated, secure the insulation with a section of tape.
7. Repeat steps 5 through 6 for the hot water (outlet) pipe.
Domestic
Hot Water
Cold
Out
Flow Control
Valve
Tempering
Valve
Water
Inlet
Pump
Hot
In
Water
Out
Out
Special Applications
Unions
Coil
To
Air
Combination Space Heating/Potable
Water System
Handler
Some water heater models are equipped with inlet/outlet
tappings for use with space heating applications. If this
water heater is to be used to supply both space heating
and domestic potable (drinking) water, the instructions
listed below must be followed.
Air
Shut-off
Valve
Handler
•
•
•
•
The unit must be set to standard mode (See Operating
the Temperature Control System section).
Be sure to follow the manual(s) shipped with the air
handler system.
This water heater is not to be used as a replacement
for an existing boiler installation.
Do not use with piping that has been treated with
chromates, boiler seal or other chemicals and do not
add any chemicals to the water heater piping.
If the space heating system requires water tempera-
tures in excess of 115°F, a tempering valve or an anti-
scald device should be installed per its manufacturer’s
instructions in the domestic (potable) hot water supply
to limit the risk of scald injury.
Drain
Drain Pan
Massachusetts code
does not allow this
type of installation.
Solar Installation
If this water heater is used as a solar storage heater or as a
backup for the solar system, the water supply temperatures
to the water heater tank may be in excess of 115°F. A
tempering valve or other temperature limiting valve must
be installed in the water supply line to limit the supply
temperature to 115°F. The unit must be set to standard
mode (See Operating the Temperature Control System
section). NOTE: Solar water heating systems can often
supply water with temperatures exceeding 180°F and may
result in water heater malfunction.
•
14
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Important Information About
Your Water Heater
Installation Checklist
Water Heater Location
This gas water heater was manufactured to voluntary
safety standards to reduce the likelihood of a flammable
vapor ignition incident. New technology used in meeting
these standards makes this product less tolerant of
installation errors or improper installation environments.
Please review the following information and make any
necessary installation upgrades or changes:
□ Centrally located with the water piping system. Located
as close to the gas piping and vent pipe system as
possible.
□ Located indoors and in a vertical position. Protected
from freezing temperatures.
□ Proper clearances from combustible surfaces
maintained and not installed directly on a carpeted floor.
□ Provisions made to protect the area from water damage.
Drain pan installed and piped to an adequate drain.
□ Installation area free of corrosive elements and
flammable materials.
1. Check for insufficient combustion air. Insufficient
air for the combustion of gas will result in the flame
becoming “lazy,” thereby allowing heat to build up in
the combustion chamber. This excessive heat will
cause a thermal switch on the door assembly to trip.
Is the water heater installed in a closet or other small,
enclosed space? If so:
□ Sufficient room to service the water heater.
□ Water heater not located near an air moving device.
□ DO NOT install in bathrooms, bedrooms, or any
occupied room normally kept closed.
•
Are there openings for make-up air to enter and
exit the room/area?
Combustion Air Supply and Ventilation
•
Are the openings of sufficient size? Remember,
if there are other gas-fired or air-consuming
appliances in the same room, you need more
make-up air. Refer to the Location Requirements
section of this water heater manual for specific
requirements.
□ Sufficient fresh air supply for proper water heater
operation.
□ Fresh air not taken from areas that contain negative
pressure producing devices such as exhaust fans,
fireplaces, etc.
□ Fresh air supply free of corrosive elements and
•
Is there a furnace/air handler in the same room/
space as the water heater? If so, has a return air
duct system been attached that exits the room?
If so, check for leaks on the air duct system. If no
air duct system is present, correct immediately
by contacting a local Heating, Ventilation, Air-
Conditioning & Refrigeration (HVAC-R) authorized
service provider.
flammable vapors.
□ Fresh air openings sized correctly with consideration
given to the blocking effect of louvers and grilles.
□ Ductwork is the same cross-sectional area as the
openings.
Vent Pipe System
□ Drafthood properly installed.
2. Check for proper drafting at the water heater draft
hood. Refer to the “Checking the Draft” section of this
manual for the test procedure. If the procedure shows
no draft is present:
□ Vent connectors securely fastened with screws and
supported properly to maintain six inch clearance.
□ Vent connector made of approved material and sized
correctly.
•
•
Recheck #1.
□ Vent pipe system must be installed according to all
local and state codes or, in the absence of local and
state codes, the “National Fuel Gas Code”, ANSI
Z223.1(NFPA 54)-latest edition.
□ Flue baffle engaged in slots provided in the flue tube.
□ Flue way, drafthood, or vent pipe system not obstructed
in any way.
Check the vent system for restrictions/obstructions
and check the vent termination height. Refer to
the Air Supply and Ventilation section of this water
heater manual for specific requirements.
3. Is the installed environment dirty (excessive amounts
of lint, dirt, dust, etc.)? If so, make sure the flame
arrestor located on the bottom of the water heater
has been cleaned. Refer to the Maintenance of your
Water Heater section of this manual for information on
cleaning the flame-trap.
4. Is it possible that flammable vapors entered the
water heater and were ignited in the burner area (a
flammable vapor incident)? If a flammable vapor
incident has occurred or if you are unsure whether it
has, call the number below immediately.
Water System Piping
□ Temperature and pressure relief valve properly installed
with a discharge line run to an open drain and protected
from freezing.
□ All piping properly installed and free of leaks.
□ Heater completely filled with water.
□ Closed system pressure build-up precautions installed.
□ Tempering valve installed per manufacturer’s
instructions, when applicable (See Water Temperature
Regulation section.)
Proper installation will ensure the safe, effective and
efficient operation of the water heater. Make sure that
you review and follow the instructions in this manual.
Questions? Call 1-877-817-6750.
Gas Supply and Piping
□ Gas supply is the same type as listed on the water heater
data plate.
□ Gas line equipped with shut-off valve, union, and drip leg.
□ Approved pipe joint compound used.
□ Adequate pipe size and of approved material.
□ An approved noncorrosive leak detection solution to
check all connections and fittings for possible gas leaks.
Correct any leak found.
15
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OPERATING YOUR WATER HEATER
Lighting Instructions
WARNING
Replace viewport if glass is
missing or damaged.
Failure to do so can result in
death, explosion or fire.
Read and understand these directions thoroughly before
attempting to light or re-light the pilot. Make sure the
viewport is not missing or damaged. (See Figure 23)
Make sure the tank is completely filled with water before
lighting the pilot. Check the data plate near the gas control
valve/thermostat for the correct gas. Do not use this water
heater with any gas other than the one listed on the data
plate. If you have any questions or doubts, consult your gas
supplier or gas utility company.
Explosion Hazard
16
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Checking the Draft
Water Temperature Regulation
WARNING
WARNING
Burn Hazard
Do not touch vent.
Doing so can result in burns.
After successfully lighting the water heater, allow the unit
to operate for 15 minutes and check the drafthood relief
opening for proper draft. Make
sure all other appliances in
Figure 17
Drafthood
Water temperature over 125°F can cause
severe burns instantly or death from scalds.
Children, disabled and elderly are at highest
risk of being scalded.
Feel water before bathing or showering.
Temperature limiting valves are available.
the area are operating and
Relief
Opening
all doors are closed when
Match
performing the draft test. Pass
a match flame around the relief
opening of the drafthood. A
steady flame drawn into the
opening indicates proper draft.
If the flame flutters or is blown
out, combustion products are escaping from the relief
The thermostat is adjusted to the pilot position when it
is shipped from the factory. Water temperature can be
regulated by moving the temperature dial to the preferred
setting. The preferred starting point is 120°F. Align the knob
with the desired water temperature as shown in Figure 19A.
There is a hot water scald potential if the thermostat is set
too high.
opening. If this occurs,
Figure 18
do not operate the
Flame Characteristics
Tips may have
water heater until proper
a yellow tint
adjustments or repairs
Yellow inner
are made to the vent
cones are
pipe system and/or air
satisfactory
IMPORTANT: Adjusting the thermostat past the 120°F bar
on the temperature dial will increase the risk of scald injury.
Hot water can produce first degree burns within:
supply requirements.
Correct flame
Burner Flames
Inspect the burner
soft blue
120°F (49°C) more than 5 minutes
130°F (54°C) at 20 seconds
140°F (60°C) at 3 seconds
flames through the viewport and compare them to the
drawings in Figure 18. A properly operating burner should
produce a soft blue flame. Blue tips with yellow inner cones
are satisfactory. The tips of the flame may have a slight
yellow tint. The flame should not be all yellow or have a
sharp blue-orange color. Contaminated air may cause an
orange colored flame. Contact a qualified person if the
flame is not satisfactory.
150°F (66°C) at 1-1/2 seconds
Figure 19A
Honeywell Gas Valve/Thermostat
120°
Mark
Settings
Gas Control/Temperature Knob
150°
Mark
Status
Light
Stacking
Stacking occurs when a series of short draws of hot water
(3 gallons or less) are taken from the water heater tank.
This causes increased cycling of the burner and can result
in increased water temperatures at the hot water outlet. An
anti-scald device is recommended in the hot water supply
line to reduce the risk of scald injury.
120°
Mark
Index
Mark
Igniter
NOTE: During low demand periods when hot water is not
being used, a lower thermostat setting will reduce energy
losses and may satisfy your normal hot water needs.
If hot water use is expected to be more than normal, a
higher thermostat setting may be required to meet the
increased demand. When leaving your home for extended
periods (vacations, etc.) turn the temperature dial to the
vacation (VAC) setting. This will maintain the water at low
temperatures with minimum energy losses and prevent the
tank from freezing during cold weather.
Emergency Shut Down
IMPORTANT: Should overheating occur or the gas supply
fails to shut off, turn off the water heater’s manual gas
control valve and call a qualified person.
17
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Operating the Temperature Control System
NOTE: If the pilot lights, but will only stay lit with the knob
depressed in the pilot position, look for the following status
light codes.
Figure 19B
Temperature Control System
STATUS LIGHT CODE
6 Second Solid Light followed by:
4 Flashes
7 Flashes
8 Flashes
The unit will not relight because it detects an
overheat failure.
The unit will not relight because it detects an
electronic control failure.
Flashes are displayed 1 second apart at 3 second intervals
120°
Mark
The unit will not relight because it detects a
valve failure.
150°
STATUS LIGHT CODE
Mark
Flashes are displayed 1 second apart at 3 second intervals
6 Second Solid Light with combinations of:
4 + 7 Flashes*
4 + 8 Flashes*
7 + 8 Flashes*
The unit will not relight because it
detects an overheat failure and an
electronic control failure.
The unit will not relight because it
detects an overheat failure and a valve
failure.
The unit will not relight because it
detects an electronic control failure and
a valve failure.
Index
Mark
120°
Mark
Water Temperature Adjustment
The water temperature can be adjusted from 110°F to
150°F. Turn the Gas Control/Temperature Knob to the
desired setting/temperature.
4 + 7 + 8 Flashes* The unit will not relight because
it detects an overheat failure, an
electronic control failure and a valve
failure.
Operating Modes and Settings
* Flashes are displayed at 1 second apart and a 3 second
pause between combinations.
•
Standard Mode - The controller adjusts the water
heater to maintain the temperature set by the user.
Energy Smart Mode - The controller adjusts the water
temperature to the lowest temperature required to
meet the household demands. This mode minimizes
operating costs. The controller will not adjust the
temperature higher than the user’s selected set point or
lower than 115°F.
Vacation Setting - The controller adjusts the water
temperature to approximately 80°F. This setting is
recommended when the water heater is not in use for
a long period of time. This effectively turns the water
heater down to a setting that prevents the water from
freezing.
•
•
Diagnostic Status Light Code
No status light indicates a control off or the pilot is out.
Standard Flashes:
1 Flashes Indicates Normal Operation
2 Flashes Indicates Thermopile Voltage Low
3 Flashes Indicates Valve or Sensor Failure
4 Flashes Indicates Overheat Failure
5 Flashes Indicates Lower Sensor Failure
6 Flashes Indicates Upper Sensor Failure
7 Flashes Indicates Electronic Control Failure
8 Flashes Indicates Valve Failure
Continuous Solid Flash indicates system shutdown
18
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A high temperature limit switch or ECO (Energy Cut Off) in
the tank is used to shut off the unit if the water temperature
exceeds 180°F (83°C). The ECO is a single use switch and
requires complete replacement of the entire gas control
valve/thermostat. If the ECO should function, the water
heater cannot be used until the gas control valve/thermostat
is replaced by a qualified person. Contact your local dealer
for service information.
Operational Conditions
Condensation
Moisture from the products of combustion condenses on
the tank surface and the outside jacket of the water heater
and forms drops of water which may fall onto the burner or
other hot surfaces. This will produce a “sizzling” or “frying”
noise. NOTE: This condensation is normal and should not be
confused with a leaking tank. Condensation may increase or
decrease at different times of the year.
Anode Rod/Water Odor
Each water heater contains at least one anode rod, which
will slowly deplete while protecting the glass-lined tank
from corrosion and prolonging the life of the water heater.
Once the anode is depleted, the tank will start to corrode,
eventually developing a leak. Certain water conditions will
cause a reaction between this rod and the water. The most
High efficient energy saver water heaters will produce
larger amounts of condensation on initial start-up or when
a large amount of hot water is being used. NOTE: Do not
confuse this with a “tank leak”. Once the water reaches a
temperature of 120°F and the tank warms up (usually 1-2
hours), the condensation will stop.
IMPORTANT: It is always recommended that a suitable drain common complaint associated with the anode rod is a “rotten
pan be installed under the water heater to protect the area
from water damage resulting from normal condensation
production, a leaking tank or piping connections. Refer to
“Location Requirements” on page 4. Under no circumstances
is the manufacturer to be held responsible for any water
damage in connection with this water heater.
egg smell” produced from the presence of hydrogen sulfide
gas dissolved in the water. IMPORTANT: Do not remove
this rod permanently as it will void any warranties. The parts
list includes a special anode that can be ordered if water
odor or discoloration occurs. NOTE: This rod may reduce
but not eliminate water odor problems. The water supply
system may require special filtration equipment from a water
conditioning company to successfully eliminate all water odor
problems.
Artificially softened water is exceedingly corrosive because
the process substitutes sodium ions for magnesium and
calcium ions. The use of a water softener may decrease the
life of the water heater tank.
Water Heater Sounds
During the normal operation of the water heater, sounds or
noises may be heard. These noises are common and may
result from the following:
1. Normal expansion and contraction of metal parts during
periods of heat-up and cool-down.
2. Condensation causes sizzling and popping within the
burner area and should be considered normal.
The anode rod should be removed from the water heater
tank every 3 years for inspection. The following are typical
(but not all) signs of a depleted anode rod:
3. Sediment buildup in the tank bottom will create varying
amounts of noise and may cause premature tank failure.
Drain and flush the tank as directed under “Draining and
Flushing”.
Smoke/Odor
•
•
The majority of the rods diameter is less than 3/8”.
Significant sections of the support wire (approx. 1/3 or
more of the anode rod’s length) are visible.
The water heater may give off a small amount of smoke
and odor during the initial start-up of the unit. This is due to
the burning off of oil from metal parts of a new unit and will
If the anode rod show signs of either or both it should be
replaced. NOTE: Whether re-installing or replacing the
anode rod, check for any leaks and
immediately correct if found.
disappear after a few minutes of operation.
Safety Shut-off
In replacing the anode:
This water heater is designed to automatically shut-off in the
1. Turn off gas supply to the water
heater.
event of the following:
1. The pilot flame is extinguished for any reason.
2. The water temperature exceeds 180°F (83°C).
3. Excessive combustion chamber temperatures.
4. The ignition of flammable vapors.
2. Shut off the water supply and
open a nearby hot water faucet to
depressurize the water tank.
3. Drain approximately 5 gallons
of water from tank (Refer to
A thermopile is used to determine if a pilot flame is present,
and will shut off the gas supply to the main burner and the
pilot if the flame is absent. This unit is also equipped with a
thermal switch, designed to shut off the gas supply in the
event the water heater has been exposed to flammable
vapors (eg, spilled gasoline), poor combustion caused by a
blocked vent or insufficient combustion air. If the
thermal switch opens:
“Draining and Flushing” for proper
procedures). Close drain valve.
4. Remove old anode rod.
5. Use Teflon® tape or approved pipe
sealant on threads and install new
anode rod.
6. Turn on water supply and open
nearby hot water faucet to purge
air from water system. Check for
any leaks and immediately correct
any if found.
1. Check the flame-trap for signs of high temperature
(blue or black discoloration) See Figure 28A.
2. If there are signs of high temperature, correct any
issues before you reset the thermal switch. Contact the
Product Service and Support Department for service
information at: 1-877-817-6750.
7. Restart the water heater as directed under “Operating
Your Water Heater.” See the “Repair Parts Illustration”
for anode rod location on page 27.
3. Inspect your installation for any problems with venting
or combustion air.
4. Reset the thermal switch by depressing the small
button in the center of the thermal switch.
TEFLON is a registered trademark of E.I. Du Pont De Nemours and Company.
19
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MAINTENANCE OF YOUR WATER HEATER
Draining and Flushing
Temperature and Pressure
Relief Valve
It is recommended that the tank be drained and flushed
every 6 months to remove sediment which may build up
during operation. The water heater should be drained if
being shut down during freezing temperatures. To drain the
tank, perform the following steps:
WARNING
1. Turn off the gas to the water heater at the manual gas
shut-off valve.
2. Close the cold water inlet valve.
3. Open a nearby hot water faucet.
Explosion Hazard
4. Connect a hose to the drain valve and terminate it to an
adequate drain.
If the temperature and pressure relief valve
is dripping or leaking, have a qualified
person replace it.
Examples of a qualified person include:
licensed plumbers, authorized gas company
personnel, and authorized service
personnel.
NOTE: The drain hose should be rated for at least 200°F.
If the drain hose does not have this rating, open the cold
water inlet valve and a nearby hot faucet until the water is
no longer hot.
5. Open the water heater drain valve and allow all the
water to drain from the tank. Flush the tank with water
as needed to remove sediment.
6. Close the drain valve, refill the tank, and restart the
heater as directed under “Operating Your Water
Heater”.
Do not plug valve.
Do not remove valve.
Failure to follow these instructions can
result in death, or explosion.
If the water heater is going to be shut down for an extended
period, the drain valve should be left open.
IMPORTANT: Condensation may occur when refilling the
tank and should not be confused with a tank leak.
Manually operate
Figure 21
the temperature
and pressure relief
valve at least once
a year to make
Temperature and Pressure
Relief Valve
Routine Preventive
Maintenance
Manual Relief
Valve
sure it is working
properly. To prevent
water damage,
the valve must be
properly connected
to a discharge line
which terminates
at an adequate
drain. Standing clear of the outlet (discharged water may
be hot), slowly lift and release the lever handle on the
temperature and pressure relief valve to allow the valve to
operate freely and return to its closed position. If the valve
fails to completely reset and continues to release water,
immediately shut off the manual gas control valve and the
cold water inlet valve and call a qualified person.
At least annually, a visual inspection should be made of
the venting and air supply system, piping systems, main
burner, pilot burner, and flame-trap. Check the water heater
for the following:
•
Obstructions, damage, or deterioration in the venting
system. Make sure the ventilation and combustion air
supplies are not obstructed.
Discharge line to drain
•
Build up of soot and carbon on the main burner and
pilot burner. Check for a soft blue flame.
•
•
Leaking or damaged water and gas piping.
Presence of flammable or corrosive materials in the
installation area.
•
•
Presence of combustible materials near the water
heater.
After servicing this water heater, check to make sure it
is working properly. (See Operating Your Water Heater
section of this manual.)
IMPORTANT: If you lack the necessary skills required to
properly perform this visual inspection, you should not
proceed, but get help from a qualified person.
20
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Removing the Burner from the
Manifold Assembly
Natural Gas Burner (Low Nox)
Replacement Parts
IMPORTANT: The following maintenance procedures
are for the Flame Lock™ Safety System components and
should be performed by a qualified person.
1. Take off the burner by removing the two (2) screws
Replacement parts may be ordered through your plumber
or the local distributor. Parts will be shipped at prevailing
prices and billed accordingly. When ordering replacement
parts, always have the following information ready:
located underneath the burner.
2. Check the burner to see if it is dirty or clogged. The
burner may be cleaned with soap and hot water (Figure
24).
1. model, serial, and product number
2. type of gas
Manifold Door
Figure 24
Natural gas (Low NOx)
Manifold Assembly
Thermal Switch
3. item number
Door Gasket
4. parts description
Burner
Two Piece Wire
Connector
Manifold Tube
See pages 27-28 for a list of available repair parts.
Pilot Tube
Removing the Manifold Assembly
1. Turn off the gas to the water heater at the manual gas
shut-off valve (Figure 3).
Thermopile
Igniter Wire
2. Turn the gas control/temperature knob to the “OFF”
Pilot Bracket
position (Figure 19).
Figure 22
Viewport
Gas Control Valve/
3. Remove the outer door.
Thermostat
Pilot Assembly
Thermopile Connector
4. Remove the two screws
securing the manifold door
to the combustion chamber
(Figure 23).
Pilot Tube
Manifold Tube
5. Disconnect the thermopile,
pilot tube, the igniter wire
from the igniter button, the
two connectors attached
to the thermal switch, and
manifold tube at the gas
control valve/thermostat.
(Figures 22 & 23.)
Burners
Igniter
Button
Manifold
Tube
Manifold Door
Screws
Pilot Assembly
Igniter
Wire
Thermopile Wire
Pilot Tube
6. Grasp the manifold tube
and push down slightly to
free the manifold tube, pilot tube, and thermopile.
7. Carefully remove the manifold assembly from the
combustion chamber. NOTE: Be sure not to damage
internal parts.
Figure 23
Manifold Assembly
Removal
Gas Valve/Thermostat
Piezo Igniter Button
Pilot Tube
Manifold Tube
Thermal Switch
Thermopile
Viewport
Manifold Door
Manifold Screw (2)
Two Piece Wire Connector
21
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Replacing the Pilot Assembly
External Inspection & Cleaning of the
Flame-trap
1. Remove the manifold assembly as directed previously.
2. Remove the retainer clip from the back of the two
piece wire connector and remove the two piece wire
connector from the manifold door (Figure 25).
3. Locate and remove the screws on the underside of the
burner. Remove the screw securing the pilot assembly
to the manifold.
4. Using a wrench loosen the nut securing the pilot tube
to the pilot assembly. NOTE: To prevent any bending of
the pilot bracket, use pliers to hold the pilot assembly
bracket while loosening the pilot nut.
Inspect the wrap around filter periodically to check for lint,
dust, or other debris that may have accumulated on it. If the
water heater is installed in an easily accessible location,
remove the wrap around filter and clean with soap and
warm water. If the installation is not easily accessible use a
vacuum with a brush attachement to clean the wrap around
filter. Rotate the filter around the base of the water heater,
vacuuming each exposed section until the wrap around
filter is clean. Although not likely to occur, if debris collects
on the flame-trap, use a vacuum, compressed air, or a soft
bristle brush to remove it. Note: If unable to inspect or
clean the flame trap from underneath, follow the “Cleaning
the Combustion Chamber and Flame-trap” instructions.
5. Pull the pilot tube from the pilot assembly (Figure 26).
IMPORTANT: Be careful not to bend or alter the position of
the pilot assembly components.
6. Push the new pilot assembly connectors through the
hole in the manifold door (See Figure 25). Reconnect
the pilot tube and tighten the nut securing it to the pilot
assembly. IMPORTANT: Keep the pilot orifice in the
pilot when making the connection. DO NOT operate the
water heater without the pilot orifice installed. Reattach
the pilot assembly to the manifold.
Figure 27
Flame-trap visual inspection
and cleaning
7. Reattach the burner and secure with the screws
removed earlier. Note: See figure 24 for correct burner
orientation.
Flashlight
8. Position the new thermopile wires through the lower
opening of the two piece wire connector (Figure 25).
Be sure igniter wire is positioned through the upper
opening of the two piece wire connector.
9. See “Replacing Manifold Assembly” Page 23.
Figure 25
Burner and other fittings
not show for clarity.
Mirror
Two Piece Wire
Connector Assembly
Thermopile
Connector
Retainer Clip
Igniter
Wire
Vacuum with
brush attachement
Pilot Tube
Two Piece
Manifold Door
Wire Connector
Cleaning the Combustion Chamber and
Flame-trap
1. Follow procedure outlined in “Removing the Manifold
Assembly”.
Figure 26
Pilot Assembly
Pilot
Thermopile
Pilot
2. Use a vacuum cleaner/shop vac to remove all loose
debris in the combustion chamber (Figure 28A). Use
compressed air to clear any dust or debris that may
have accumulated in the flame-trap.
Assembly
Igniter Connector
Thermopile
Connector
3. Reassemble following the procedure under “Replacing
the Manifold Assembly”.
Thermal
Switch
Connectors
22
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9. Check for leaks by brushing on an approved
noncorrosive leak detection solution. Bubbles forming
indicate a leak. Correct any leak found. IMPORTANT:
All leaks must be fixed immediately.
Replacing the Manifold Assembly
WARNING
10. Replace the outer door.
Figure 28A
Combustion Chamber
Flame-trap
Bracket
Door Gasket
Explosion Hazard
Tighten both manifold door screws
securely.
Remove any fiberglass between gasket
and combustion chamber.
Replace viewport if glass is missing or
damaged.
Figure 28B
Close-up inside view of
the combustion chamber.
Manifold Assembly Close-up
Replace two piece wire connector if missing
or removed.
Replace door gasket if damaged.
Failure to follow these instructions can
result in death, explosion, or fire.
Tab
1. Check the door gasket for damage or imbedded debris
prior to installation.
Slot
Bracket
Manifold Tube
WARNING
Replace viewport if glass is
missing or damaged.
Piezoelectric Igniter System
Explosion Hazard
The piezoelectric igniter system consists of the igniter
button, electrode, and wire. The pilot is ignited by an
electric spark generated when the igniter button is pressed.
The spark gap of 0.125 inch is set when the electrode is
installed at the factory. (See Figure 29). Use only factory
authorized piezoelectric igniter parts for replacement.
Failure to do so can result in
death, explosion or fire.
2. Inspect the viewport for damage and replace as
Figure 29
required.
Natural Gas Igniter Assembly
3. Insert the manifold assembly into the combustion
chamber making sure that the tab of the manifold
tube engages in the slot of the bracket inside the
combustion chamber (Figure 28B).
Pilot
S
A
0
R
T
Y
G
M
O
R
E
D
N
E
E
O
O
N
O
W
T
°
0
5
H
Thermopile
O
M
0
M
R
4. Inspect the door gasket and make sure there is no
fiberglass insulation between the door gasket and the
combustion chamber.
O
L
V
F
A
F
C
O
P
I
LO
T
.125”
5. Replace the two screws which secure the manifold
assembly door to the combustion chamber. Tighten
securely. There should be no space between the
gasket part of the manifold door and combustion
chamber. IMPORTANT: Do not operate the water
heater if the door gasket does not create a seal
between the manifold door and the combustion
chamber.
Electrode
Wire to Electrode
Pilot Bracket
Igniter Button
Testing the Igniter System
Turn off the gas to the water heater at the manual gas shut-
off valve. Watch the electrode tip while activating the igniter.
A visible spark should jump from the electrode. To avoid
shock, do not touch the burner or any metal part on the
pilot or pilot assembly. If no spark is visible, check the wire
connections and make sure the electrode is not broken.
Replace the igniter if defective. Dirt and rust on the pilot or
electrode tip can prevent the igniter spark. Wipe clean with
a damp cloth and dry completely. Rust can be removed
from the electrode tip and metal surfaces by lightly sanding
with an emery cloth or fine grit sandpaper.
6. Reconnect the two wire leads to the thermal switch,
the manifold tubing, pilot tubing, and thermopile to the
gas control valve/thermostat. IMPORTANT: DO NOT
attempt to disable or modify the thermal switch in any
way. Do not cross-thread or apply any thread sealant to
these fittings.
7. Reconnect the igniter wire.
8. Turn gas supply on and refer to the “Lighting
Instructions” on page 16.
23
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Replacing the Gas Valve:
Removing and Replacing the Gas
Control Valve/Thermostat
To replace the gas control valve/thermostat, reassemble in
reverse order. IMPORTANT: This water heater has a
resettable thermal switch installed. DO NOT attempt to disable
or modify this feature in any way. When replacing the gas
valve, thread a correctly sized pipe into the inlet and use it to
turn the gas valve (clockwise.) DO NOT OVER TIGHTEN,
damage may result.
IMPORTANT: The gas control valve/thermostat is a standard
valve with wire leads that connect to a thermal switch.
Removing the Gas Valve:
1. Turn the gas control/temperature knob to the “OFF”
position (Figure 19).
•
Be sure to use approved Teflon® tape or pipe joint
compound on the gas piping connections and fitting on the
back of the gas control valve that screws into tank.
Be sure to remove the pilot ferrule nut from the new gas
control valve/thermostat.
Turn the gas supply on and check the gas supply and
gas valve for leaks. Test the supply connections by
brushing on an approved noncorrosive leak detection
solution. Bubbles forming indicate a leak. Correct any
leak found.
2. Turn off the gas at the manual shut-off valve on the gas
supply pipe (Figure 3).
3. Drain the water heater. Refer to the section of “Draining
and Flushing” on page 20 and follow the procedure.
4. Disconnect the igniter wire from the igniter button.
Disconnect the thermopile, pilot tube, two wire leads at
the thermal switch, and manifold tube at the gas control
valve/thermostat (Figure 22).
•
•
5. Refer to “Gas Piping” (Figure 3) and disconnect the
ground joint union in the gas piping. Disconnect the
remaining pipe from the gas control valve/thermostat.
6. To remove the gas valve, thread a correctly sized
pipe into the inlet and use it to turn the gas valve
(counterclockwise.) Do not use pipe wrench or equivalent
to grip body. Damage may result, causing leaks. Do not
insert any sharp objects into the inlet or outlet
connections. Damage to the gas valve may result.
•
Be sure tank is completely filled with water before
lighting and activating the water heater. Follow the
“Lighting Instructions” on page 16. With the water heater
lit check for leaks at the manifold and pilot connections.
Bubbles forming indicate a leak. Correct any leak found.
•
If additional information is required, contact the Service
Department at: 1-877-817-6750.
TEFLON is a registered trademark of E.I. Du Pont De Nemours and Company.
Flame Lock™ Safety System Operational Checklist
5. No leaks at pilot and manifold connection.
6. Manifold door screws securely tightened.
7. Depress the button on the thermal switch.
1. Manifold door gasket properly sealed.
2. Viewport not damaged or cracked.
3. Flame-trap free of debris and undamaged.
4. Two piece wire connector properly installed.
TROUBLESHOOTING CHART
PROBLEM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
BURNER WILL NOT IGNITE 1. Pilot not lit
1. Light pilot
2. Thermostat set too low
2. Turn temp. dial to desired temperature
3. Check with gas utility company
4. Notify utility-install trap in gas line
5. Clean, locate source and correct
6. Clean, locate source and correct
7. Replace thermopile
3. No gas
4. Dirt in the gas lines
5. Pilot line clogged
6. Main burner line clogged
7. Non-functioning thermopile
8. Non-functioning thermostat
8. Replace thermostat
9. Heater installed in a confined area
1. Sulfides in the water
9. Provide fresh air ventilation
SMELLY WATER
1. Replace the anode with a special anode
BURNER FLAME YELLOW- 1. Insufficient secondary air
1. Provide ventilation to water heater
2. Check with gas utility company
3. Clean, locate source and correct
4. Clean, locate source and correct
5. Proper fresh air ventilation
LAZY
2. Low gas pressure
3. Flue clogged
4. Main burner line clogged
5. Heater installed in a confined area
6. Obstruction in main burner orifice
6. Clean or replace orifice
PILOT WILL NOT LIGHT OR 1. Non-functioning igniter
1. Replace igniter pilot assembly
2. See Pilot Light Troubleshooting Flowchart
section
REMAIN LIT
2. The thermal switch tripped
3. Thermopile connection loose
4. Air in gas line
3. Seat connector firmly in socket
4. Bleed the air from the gas line
5. Check with gas utility company
6. Check with gas utility company
7. Notify utility-install dirt trap in gas line
8. Locate source and correct
9. Replace thermostat
5. Low gas pressure
6. No gas
7. Dirt in gas lines
8. Cold drafts
9. Thermostat ECO switch open
10. Pilot line or orifice clogged
11. Non-functioning thermopile
12. Air for combustion obstructed
10. Clean, locate source and correct
11. Replace thermopile
12. See maintenance section for inspection and
cleaning of flame trap
13. Flammable vapors incident, Flame Lock™
function utilized
13. Replace water heater, eliminate flammable
vapors source. Call 1-877-817-6750
24
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PROBLEM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
HIGH OPERATION COSTS
1. Thermostat set too high
1. Set temperature dial to lower setting
2. Drain/flush-provide water treatment if needed
3. Install adequate heater
2. Sediment or lime in tank
3. Water heater too small for job
4. Wrong piping connections
5. Leaking faucets
4. Correct piping-dip tube must be in cold inlet
5. Repair faucets
6. Gas leaks
6. Check with utility-repair at once
7. Advise customer
7. Wasted hot water
8. Long runs of exposed piping
9. Hot water piping in exposed wall
8. Insulate piping
9. Insulate piping
INSUFFICIENT HOT WATER 1. Thermostat set too low
2. Sediment or lime in tank
3. Water heater too small
1. Turn temperature dial to desired setting
2. Drain/flush-provide water treatment if needed
3. Install adequate heater
4. Wrong piping connections
5. Leaking faucets
4. Correct piping-dip tube must be in cold inlet
5
Repair faucets
6. Wasted hot water
6. Advise customer
7. Long runs of exposed piping
8. Hot water piping in outside wall
9. Low gas pressure
7. Insulate piping
8. Insulate piping
9. Check with gas utility company
SLOW HOT WATER
RECOVERY
1. Insufficient secondary air
1. Provide ventilation to water heater. Check flue
way, flue baffle, and burner
2. Flue clogged
2. Clean flue, locate source and correct
3. Check with gas utility company
4. Replace thermostat
3. Low gas pressure
4. Improper calibration
5. Thermostat set too low
6. Water heater too small
7. Wrong piping connections
8. Wasted hot water
5. Turn temperature dial to desired setting
6. Install adequate heater
7. Correct piping-dip tube must be in cold inlet
8. Advise customer
DRIP FROM RELIEF VALVE 1. Excessive water pressure
2. Heater stacking
1. Use a pressure reducing valve and relief valve
2. Lower the thermostat setting
3. Closed water system
3. See “Closed System/Thermal Expansion”
THERMOSTAT FAILS TO
SHUT-OFF
1. Thermostat not functioning properly
2. Improper calibration
1. Replace thermostat
2. Replace thermostat
COMBUSTION ODORS
1. Insufficient secondary air
1. Provide ventilation to water heater. Check flue
way, flue baffle, and burner
2. Flue clogged
2. Clean, locate source and correct
3. Provide fresh air ventilation
3. Heater installed in a confined area
SMOKING AND CARBON
FORMATION (SOOTING)
1. Insufficient secondary air
1. Provide ventilation to water heater. Check flue
way, flue baffle, burner
2. Low gas pressure
2. Check with gas utility company
3. Clean, locate source and correct
4. Replace thermostat
3. Flue clogged
4. Thermostat not functioning properly
5. Heater installed in a confined area
6. Burner flame yellow-lazy
5. Provide fresh air ventilation
6. See “Burner Flame Yellow-Lazy”
CONDENSATION
1. Temperature setting too low
1. Increase the temperature setting
BURNER FLAME FLOATS
AND LIFTS OFF PORTS
1. Orifice too large
2. High gas pressure
3. Flue clogged
4. Cold drafts
1. Replace with correct orifice
2. Check with gas utility company
3. Clean flue and burner-locate source and correct
4. Locate source and correct
BURNER FLAME TOO HIGH 1. Orifice too large
1. Replace with correct orifice
FLAME BURNS AT ORIFICE 1. Thermostat not functioning properly
2. Low gas pressure
1. Replace thermostat
2. Check with gas utility company
PILOT FLAME
TOO SMALL
1. Pilot line or orifice clogged
2. Low gas pressure
1. Clean, locate source and correct
2. Check with gas utility company
25
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PILOT LIGHT TROUBLESHOOTING CHART
Section A: Pilot light will not light (new installation).
Section C: Pilot light will not remain lit.
Check for insufficient combustion air.
Is the manual gas shut-off valve,
located in the supply line to the
water heater, in the on position?
Turn the manual gas shut-off valve to
the on position and follow the lighting
instructions on the front of the water heater.
NO
Are the combustion air supply and ventilation openings
of sufficient size? See Combustion Air Supply and
Ventilation section in this manual for requirements.
Correct size of
openings to allow
sufficient air.
NO
YES
While repeatedly depressing the igniter
button, push in and hold the gas control/
temperature knob until the pilot is lit and
maintains a stable flame, (status light
will blink) then release the gas control/
temperature knob.
YES
Have you bled all the air
from the pilot tube and
gas supply line?
NO
Is there a furnace/air handler in the same room as the water heater?
NO
YES
YES
Does the return air duct for the furnace/
Contact a local Heating,
Is the igniter producing a
spark?
NO
air handler draw its air from a separate
YES
Ventilation, Air-Conditioning
location than the water heater? See the
Location Requirements section and the
Combustion Air Supply section.
NO
& Refrigeration authorized
service provider to correct
the combustion air supply/
ventilation issue.
Follow the Testing the Igniter System
section in this manual.
Set thermostat to desired temperature.
YES
Check the vent
Is there proper drafting at the
system for restrictions/
obstructions and check
the vent termination
height. Refer to the
drafthood? See Checking the
Draft section in this manual.
NO
NO
Section B: Pilot light repeatedly goes out.
Installation Instructions
section of this manual for
specific requirements.
Refer to the Use &
Remove the burner door
Care Guide section
of this manual for
information on
assembly. Are the flame-trap and
burner free from debris due to
excessive lint, dirt, dust or oil?
Contact Customer Service at the number
located on the front of this manual.
NO
cleaning the flame-
trap and burner.
YES
NOTE: If you are still experiencing difficulties
after following the steps in sections A, B, and C,
please use the number located on the front of
this manual to contact Customer Service.
Does the flame-trap
Reassemble the heater, press the thermal
switch, and attempt to return the heater to
service. Does the pilot remain lit?
NO
show signs of
discoloration?
YES
YES
NO
Shut-off the gas supply to the water heater at the
manual gas shut-off valve, and contact Customer
Service using the number on the cover of this manual.
Set to desired temperature.
Thermal Switch Location
Does the diagnostic status light on the
gas control valve/thermostat give
a two flash error code?
YES
NO
Refer to the Replacing the Pilot
Assembly instructions in the manual.
Go to section C.
Reassemble and restore to service.
Thermal
Switch
26
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REPAIR PARTS ILLUSTRATION
1
5
4
2
3
8
6
When ordering repair parts always give the following
information:
1. Model, serial, and product number
10
2. Type of gas
3. Item number
4. Parts description
7
9
11
Repair Parts List
Item
Parts Description
No.
1
2
3
4
5
6
7
8
DRAFTHOOD
REDUCER RING - SOME MODELS
FLUE BAFFLE
HEAT TRAP (COLD) - SOME MODELS
HEAT TRAP (HOT) - SOME MODELS
COLD WATER DIP TUBE
ANODE ROD
TEMPERATURE & PRESSURE RELIEF VALVE
(LOCATED TOP OR SIDE)
9
DRAIN VALVE
10
11
GAS CONTROL VALVE/THERMOSTAT(with wire leads)
OUTER DOOR
12* PILOT ASSEMBLY KIT
(Natural Gas)
13
BURNER (Natural Gas/Low Nox)
14* MANIFOLD DOOR ASSEMBLY
(Natural Gas/Low Nox)
15* TWO PIECE WIRE CONNECTOR
WITH RETAINER CLIP
16* MANIFOLD DOOR GASKET
17* VIEWPORT ASSEMBLY
18* THERMISTORS
LEGEND
Special anode rod (see page 19)
Temperature and Pressure Relief Valve is required,
but may not be factory installed
*Pictured on next page.
Unique: Flame Lock™ Safety System parts
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Listed Parts Kits and Illustrations
Item 12: Pilot assembly kit, which contains the pilot assembly, thermopile, and retainer clip (Natural Gas)
Item 13: Burner (Natural Gas/Low Nox)
Item 14: Manifold door assembly which contains the manifold tube, gasket, door, pilot tube, thermopile, two piece wire
connector with retainer clip, thermal switch, and pilot assembly. (Natural Gas/Low Nox)
Item 15: Contains two piece wire connector and retainer clip
Item 16: Contains manifold door gasket
Item 17: Contains viewport
Item 18: Contains replacement thermistors
Item #18
WHIRLPOOL, FLAME LOCK & DESIGN, and FLAME LOCK are trademarks of Whirlpool, U.S.A. © 2006 Whirlpool Corporation. All rights reserved.
Manufactured under license by American Water Heater Company, Tennessee.
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