Rheem Residential 40 Gallon, Residential50 Gallon, Classic Series Use & Care Manual

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Warning: This water heater is not

CERTI FIED

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suitable for use in manufactured (mobile) homes!

Residential Gas - FVIR Certified

Direct Vent Water Heaters

The purpose of this manual is twofold: one, to provide the installer with the basic directions and
recommendations for the proper installation and adjustment of the water heater; and two, for the owner–
operator, to explain the features, operation, safety precautions, maintenance and troubleshooting of the
water heater. This manual also includes a parts list.

It is very important that all persons who are expected to install, operate or adjust this water heater
read the instructions carefully so they may understand how to perform these operations. If you do not
understand these instructions or any terms within it, seek professional assistance.

Any questions regarding the operation, maintenance, service or warranty of this water heater should
be directed to the seller from whom it was purchased. If additional information is required, refer to the
section on “If You Need Service.”

Do not destroy this manual. Please read carefully and keep in a safe place for future reference.

Recognize this symbol as an indication of Important Safety Information!

Use & Care Manual

With Installation Instructions for the Installer

Residential 40 and 50 Gallon

California Proposition 65 Warning: This product contains chemicals known to the State of

California to cause cancer, birth defects or other reproductive harm.

WARNING: If the information in these instructions is not followed exactly,

a fire or explosion may result causing property damage, personal injury or death.

FOR YOUR SAFETY!

— Do not store or use gasoline or other

flammable vapors and liquids or other
combustible materials in the vicinity of this or
any other appliance. To do so may result in an
explosion or fire.

— 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.

● Do not return to your home until authorized

by the gas supplier or fire department.

— Improper installation, adjustment, alteration,

service or maintenance can cause property
damage, personal injury, or death . Refer to
this manual. Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.

Printed in USA

AP14380 -1 (07/08)

Safety Information

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Safety Precautions ....... 3–6

LP Gas Models ........... 5

Installation Instructions

Location ................. 7

Venting ............... 9-12

Water Supply Connections . . 13

Gas Supply .............. 14

Pipe Insulation ............16

Heat Traps ...............16

Installation Checklist .......17

Potable/Space Heating .... 18

Operating Instructions

Lighting Instructions ...... 19

Water Temperature .... 20, 21

FOR YOUR RECORDS

Write the model and serial numbers here:

#

#

You can find them on a label on the appliance.

Staple sales slip or cancelled check here.

Proof of the original purchase date is needed to obtain service under
the warranty.

READ THIS MANUAL

Inside you will find many helpful hints on how to use and
maintain your water heater properly. A little preventive care
on your part can save you time and money over the life of your
water heater.

You’ll find many answers to common problems in
the Troubleshooting Guide. If you review the chart of
Troubleshooting Tips first, you may not need to call for service.

Care and Cleaning

Draining ................ 22

Maintenance ............. 22

Burner Inspection ........ 23

Extended Shut-Down ......23

Troubleshooting Tips

Before You Call

For Service ........... 24, 25

Customer Service

Parts List ................ 26

If You Need

Service ..........Back Cover

2

READ THE SAFETY INFORMATION

Your safety and the safety of others are very important. There
are many important safety messages in this manual and on your
appliance. Always read and obey all safety messages.

This is the safety alert symbol. Recognize this symbol
as an indication of Important Safety Information!
This symbol alerts you to potential hazards that can
kill or hurt you and others.

All safety messages will follow the safety alert symbol and
either the word “DANGER”, “WARNING”, “CAUTION” or
“NOTICE”.

These words mean:

DANGER

that will result in death or serious
injury.

WARNING

could result in death or serious injury

and/or damage to property.

CAUTION

may result in minor or moderate
injury.

Notice:

specified procedure or maintain
a specific condition.

An imminently hazardous situation

A potentially hazardous situation that

A potentially hazardous situation that

Attention is called to observe a

IMPORTANT SAFETY INFORMATION.

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FLAMMABLES

Flammab le V a pors

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.

W ARNING

READ ALL INSTRUCTIONS BEFORE USING.

Be sure to read and understand the entire Use and Care Manual before attempting to install or operate
this water heater. It may save you time and cost. Pay particular attention to the Safety Instructions.
Failure to follow these warnings could result in serious bodily injury or death. Should you have
problems understanding the instructions in this manual, or have any questions, STOP, and get help
from a qualified service technician, or the local gas utility.

DANGER!

INSTALL THE VENTING SYSTEM AND PROPERLY VENT
THE WATER HEATER…

Failure to install the venting system and properly vent the water heater to the outdoors as
outlined in the Venting Section of the Installation Instructions in this manual can result in
unsafe operation of the water heater. To avoid the risk of fire, explosion, or asphyxiation
from carbon monoxide, never operate this water heater unless it is properly vented and
has an adequate air supply for proper operation. Be sure to inspect the vent system
for proper installation at initial start-up; and at least annually thereafter. Refer to the
Care and Cleaning section of this manual for more information regarding vent system
inspection.

WARNING!

Gasoline, as well as other flammable materials and liquids (which include, but not limited
to adhesives, solvents, paint thinners etc.), and the vapors they produce are extremely
dangerous. DO NOT handle, use or store gasoline or other flammable or combustible
materials anywhere near or in the vicinity of a water heater and its vent pipe terminal or
any other appliance. Be sure to read and follow warning label pictured below and other
labels on the water heater, as well as the warnings printed in this manual. Failure to do so
can result in property damage, bodily injury or death.

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IMPORTANT SAFETY INFORMATION.

!

READ ALL INSTRUCTIONS BEFORE USING.

DANGER!

WATER TEMPERATURE SETTING

Safety and energy conservation are factors to be considered when selecting the water
temperature setting of a water heater’s gas control. Water temperatures above 125°F
(52°C) can cause severe burns or death from scalding. Be sure to read and follow the
warnings outlined on the label pictured below. This label is also located on the water
heater.

Time/Temperature Relationship in Scalds

Water Temperature Time To Produce a Serious Burn

120°F (49°C) More than 5 minutes

125°F (52°C) 11/2 to 2 minutes

130°F (54°C) About 30 seconds

135°F (57°C) About 10 seconds

140°F (60°C) Less than 5 seconds

145°F (63°C) Less than 3 seconds

150°F (66°C) About 11/2 seconds

155°F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

Notice: Mixing valves are available for reducing point
of use water temperature by mixing hot and cold water
in branch water lines. Contact a licensed plumber or the
local plumbing authority for further information.

4

The chart shown above may be used as a guide
in determining the proper water temperature for your
home.

DANGER: Households with small children, disabled,
or elderly persons may require a 120°F
control (thermostat) setting to prevent contact with “HOT”
water.

(49°C) or lower gas

Maximum water temperatures occur just after the
burner has shut off. To find water temperature being
delivered, turn on a hot water faucet and place
a thermometer in the water stream and read the
thermometer. (See page 20 and 21 for more details.)

The temperature of the water in the heater can be
regulated by setting the temperature dial on the front
of the gas control (thermostat). To comply with
safety regulations the gas control (thermostat) was

110°F

100°F
(38°C)

90°F
(32°C)

80°F
(27°C)

Temperatures are approximate

DANGER: Hotter water increases the potential for
Hot Water SCALDS.

(43°C)

(54°C)

set at its lowest setting

120°F

before the water heater

(49°C)

was shipped from the

130°F

factory.

The illustration at the left

140°F

(60°C)

details the approximate

150°F

water temperature

(66°C)

for each mark on

160°F

the Gas Control

(71°C)

(Thermostat)
Temperature Dial.

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DANGER!

LIQUEFIED PETROLEUM (LP PROPANE OR BUTANE)
AND NATURAL GAS MODELS

LP and Natural gas have an odorant added to aid in detecting a gas leak. Some people
may not physically be able to smell or recognize this odorant. If you are unsure or
unfamiliar with the smell of LP or natural gas, ask the gas supplier. Other conditions,
such as “odorant fade”, which causes the odorant to diminish in intensity, can also hide or
camouflage a gas leak.

● Water heaters utilizing LP gas are

different from natural gas models. A
natural gas water heater will not function
safely on LP gas and vice versa.

●

No attempt should ever be made to

convert the water heater from natural
gas to LP gas. To avoid possible
equipment damage, personal injury or
fire, do not connect the water heater to a
fuel type not in accordance with the unit
data plate. LP for LP units. Natural gas
for natural gas units. These units are not
certified for any other fuel type.

●

LP appliances should not be installed

below grade (for example, in a basement)
if such installation is prohibited by
federal, state and/or local laws, rules,
regulations or customs.

●

LP gas must be used with great caution.

It is heavier than air and will collect first
in lower areas making it hard to detect at
nose level.

DANGER: If a gas leak is present or

suspected:

Do not attempt to find the cause

●

yourself.

●

Do not try to light any appliance.

Do not touch any electrical switch.

●

Do not use any phone in your building.

●

Leave the house immediately and make

●

sure your family and pets leave also.

Leave the doors open for ventilation

●

and contact the gas supplier, a qualified
service agency or the fire department.

●

Stay away from the house (or building)

until the service call has been made, the
leak is corrected and a qualified agency
has determined the area to be safe.

●

Before attempting to light the water

heater, make sure to look and smell for
gas leaks. Use a soapy solution to check
all gas fittings and connections. Bubbling
at a connection indicates a leak that must
be corrected. When smelling to detect a
gas leak, be sure to sniff near the floor
also.

●

Gas detectors are recommended in LP

& natural gas applications and their
installation should be in accordance
with the detector manufacturer’s
recommendations and/or local laws,
rules, regulations or customs.

●

It is recommended that more than one

method, such as soapy solution, gas
detectors, etc., be used to detect leaks in
gas applications.

5

IMPORTANT SAFETY INFORMATION.

!

READ ALL INSTRUCTIONS BEFORE USING.

WARNING!

For your safety, the information in this manual must be followed to minimize the risk of
fire or explosion, electric shock, or to prevent property damage, personal injury, or loss of
life.

FOR INSTALLATIONS IN THE STATE OF CALIFORNIA

California Law requires that residential water heaters must be braced, anchored or
strapped to resist falling or horizontal displacement due to earthquake motions. For
residential water heaters up to 52-gallon capacity, a brochure with generic earthquake
bracing instructions can be obtained from: Office of the State Architect, 1102 Q Street,
Suite 5100, Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater
dealer.

However, applicable local codes shall govern installation. For residential water heaters
of a capacity greater than 52 gallons, consult the local building jurisdiction for acceptable
bracing procedures.

SAFETY PRECAUTIONS

Have the installer show you the location of the gas shut-off valve and how to shut it off
if necessary. Turn off the manual shut-off valve if the water heater has been subjected to
overheating, fire, flood, physical damage or if the gas supply fails to shut off.

●

Read this manual entirely before installing

or operating the water heater.

●

Use this appliance only for its intended

purpose as described in this Use and Care
Manual.

●

Be sure your appliance is properly installed
in accordance with local codes and the
provided installation instructions.

●

Do not attempt to repair or replace any part

of your water heater unless it is specifically
recommended in this manual. All other
servicing should be referred to a qualified
technician.

READ AND FOLLOW THIS SAFETY INFORMATION
CAREFULLY.

SAVE THESE INSTRUCTIONS

6

Installing the water heater.

!

This water heater must be installed in accordance with these instructions, local codes, utility company
requirements, and/or in the absence of local codes, use the latest edition of the American National
Standard/National Fuel Gas Code. A copy can be purchased from either the American Gas Association,
400 N. Capitol Street NW, Washington, DC 20001 as ANSI standard Z223.1 or National Fire Protection
Association, 1 Batterymarch Park, Quincy, MA 02269 as booklet NFPA 54. For Canada Installations
use CAN/CSA B149 - Natural Gas and Propane Installation Code. A copy can be purchased from the
Canadian Standards Association, 178 Rexdale Boulevard,Toronto, Ontario, CANADA, M9W 1R3.

Location

Max. 2”

(5 cm)

Diameter of
water heater
plus 2” min.

(5 cm)

The auxiliary catch pan
installation MUST conform
to local codes.

WARNING: Combustible
construction refers to
adjacent walls and ceilings
and should not be confused
with combustible or
flammable products and
materials. Combustible
and/or flammable products
and materials should never
be stored in the vicinity of
this or any gas appliance.

The water heater should not be located
in an area where leakage from the tank
or connections will result in damage
to the area adjacent to the heater or to
lower floors of the structure.

When such areas cannot be avoided it is
recommended that a suitable catch pan,
adequately drained, must be installed
under the water heater.

Catch pan kits are available from the store
where the water heater was purchased, or
any water heater distributor.

Make certain that the floor underneath the
water heater is strong enough to support
the weight of the water heater once it is
filled with water.

A gas fired water heater or any other
appliance should not be installed
in a space where liquids which give off
flammable vapors are to be used or stored.
Such liquids include gasoline, LP gas
(butane or propane), paint or adhesives
and their thinners, solvents or removers.

Because of natural air movement in a
room or other enclosed space, flammable
vapors can be carried some distance from
where liquids which give off flammable
vapors are to be used or stored. The open
flame of the water heater’s pilot or main
burner can ignite these vapors.

Rheem Water Heating FVIR certified gas
water heaters can be installed on a residential
garage floor without the use of an 18-inch
stand in accordance with the National Fuel
Gas Code, NFPA 54, ANSI Z223.1 2006,
paragraph 9.1.10 Installation in Residential
Garages, unless otherwise directed by State

and Local code requirements. The water
heater must be located so it is not subject to
physical damage, for example, by moving
vehicles, area flooding, etc

●

This water heater is of the direct vent

design. It therefore must be located next
to the outside wall, within the range of
the telescopic adjustments. (See page 9
for Locating Clearance Hole for Vent)

● Long hot water lines should be insulated

to conserve water and energy.

● The water heater and water lines should

be protected from exposure to freezing
temperatures.

● Do not install the water heater in

unprotected outdoor areas.

● Minimum clearance from combustible

construction is 0” sides, 0” rear; and 3”
(7.6 cm) from the front of the control. If
the clearances stated on the Instruction/
Warning Label, located on the front of
the heater differ, install the water heater
according to the clearances stated on
the label.

● The water heater may be installed on

combustible floors, but not directly on
carpeting. If the water heater must be
installed on carpeting, place a metal
or wood panel beneath the water
heater, extending beyond its full width
and depth at least 3” (7.6 cm) in all
directions.

● If the water heater is installed in an

alcove or closet, the entire floor must
be covered by a wood or metal panel.
A minimum of 24” (61 cm) clearance
from the front and top should be
available for adequate inspection and
servicing.

7

Installing the water heater.

Inspect Shipment

Inspect the water heater and the venting provided with the water heater for possible
damage. Check the markings on the rating plate of the water heater to be certain the
type of gas supplied corresponds to the water heater requirements.

Combustion and Ventilation Air

NOTICE: The water heater
should not be installed near
an air supply containing
halogenated hydrocarbons.

Proper operation of the water heater
requires air for combustion and
ventilation. Provisions for combustion
and ventilation air must comply with
referenced codes and standards.

NOTICE: If the water heater is
installed in an unconfined space within a
building of conventional frame, masonry
or metal construction, infiltration
air is normally adequate for proper
combustion and ventilation. If the water
heater is installed in a confined space,
provisions for ventilation air must be
made.

Corrosive Atmospheres

The air in beauty shops, dry cleaning
establishments, photo processing
labs, and storage areas for liquid and
powdered bleaches or swimming pool
chemicals often contain such halogenated
hydrocarbons.

An air supply containing halogenated
hydrocarbons may be safe to breathe,
but when it passes through a gas flame
corrosive elements are released that
will shorten the life of any gas burning
appliance.

All air for combustion and all products of
combustion are routed through the ducting
provided, directly from and to the outside
of the building.

NOTICE: If the duct openings which
supply ventilation air are to be covered
with a protective screen or grill, the net
free area (openings in the material) of
the covering material must be used in
determining the size of the openings.
Protective screening for the openings
MUST NOT be smaller than 1/4”mesh
to prevent clogging by lint or other
debris.

Propellants from common spray cans
or gas leaks from A/C and refrigeration
equipment are highly corrosive after
passing through a flame.

The water heater warranty is voided when
failure of the heater is due to operation in
a corrosive atmosphere.

8

HOT

The water heater must be installed with the factory supplied venting system. The old venting system
(vent pipe, air intake pipe, vent cap, elbows etc.) must be replaced with the vent system supplied with
the new water heater.

DANGER: Failure to
install the venting system
and properly vent the water
heater to the outdoors as
outlined in the Venting
section of this manual will
result in unsafe operation of
the water heater causing
bodily injury, explosion,
fire or death. To avoid the
risk of fire, explosion, or
asphyxiation from carbon
monoxide, NEVER operate
the water heater unless it is
properly vented and has
adequate air supply for
proper operation as
outlined in the Venting
section of this manual.

18”Min

Inside

Corner

(46 cm)

18”Min.

(46 cm)

12" Min. (30 cm) above grade
(Higher in areas of heavy snowfall.)

Venting

CAUTION: If there are any
damaged parts, DO NOT install the
water heater. Report any damage to
your distributor or to the carrier.

9" Min. (23 cm)

36” Min.

Within 10 feet

(305 cm)

Any forced air inlet

into the building

(91 cm)

NOTICE: The four fasteners that are
required to secure the vent cap to the
external wall are not provided. These
should be screw type (not nails) chosen
for the type of construction and obtained
locally

See the back page of this manual
for additional requirements for the
Commonwealth of Massachusetts.

Vent Termination Clearances

Vent Terminal must be located at least
min. above grade level and above normal snow
levels. Higher in areas of heavy snowfall.

Vent Terminal must be located at least 9” (23 cm) from
windows, doors, or any other opening through which flue
gases could enter the building.

Vent Terminal must be located at least 36” (91 cm) above
any Forced Air Inlet into the building within
10’ (3 m) of the Vent Terminal.
air inlet such as for a dryer or furnace area is
considered to be a forced air inlet.

Vent Terminal must be located at least 18” (46 cm) from
any overhang or building corner or other irregularity.

DO NOT locate the Vent Terminal under any deck or

patio structure.

12” (30.5 cm)

Any fresh or make-up

Approximately
6 1/4" Diameter
(15.8 cm)

"X"

Floor

Locating Clearance Hole for Vent

Cut a clearance hole, approximately 6 1/4” (15.8 cm)

in diameter, through the exterior wall for the
6” (15.2 cm) diameter air tube.

Capacity "X"

40 Gallon 68-1/4" (173.3 cm)

50 Gallon 68" (172.7 cm)

9

Installing the Water Heater:

Top Plenum

Top Plenum

Top Pan

Elbow with brackets bent at 90°

* Seal with silicone sealant.

3" (7.6 cm) 90° Elbow (Steel)

Moving water heater to its final
location

Move the water heater to its final installed location.

Make certain clearances from combustible materials
are observed.

Installing 3” (7.6 cm) Diameter Steel
Elbow

Bend the brackets on the elbow as shown on left.

Place the 3” (7.6 cm) steel elbow on the water heater

flue pipe and press it firmly downward until fully
seated and pointed in the desired direction. After
installation of elbow, apply silicone sealant around
the outside of the pipe where the 3" (7.6 cm) elbow

comes in contact with the ue pipe

seal can cause product performance and nuisance
pilot outages.

Secure the 3" (7.6 cm) steel elbow to the top pan by

inserting two #8 x 3/8" long screws supplied through
the bent brackets.

. An improper

3" (7.6 cm) (90° Elbow (Steel)

90° Elbow (Aluminum)

Install end of elbow with

label to top plenum.

‡ Sheet Metal Screws

‡

6" (15.2 cm)

Top Plenum.

‡

Finishing Collar

Installing 6” (15.2 cm) Diameter
Aluminum Elbow

Install the 6” (15.2 cm) aluminum elbow over the

3” (7.6 cm) steel elbow. Be certain both are pointed
in the desired direction with the 3" (7.6 cm) centered
inside the 6” (15.2 cm) inch elbow.

Leveling and attaching 6” (15.2 cm)
Diameter Aluminum Elbow

As an aid to leveling the 6” (15.2 cm) elbow,

temporarily place the 6” (15.2 cm) sliding tube onto
the elbow.

When leveled, drill a 1/8”

elbow into the collar at the front and back. Secure with the
two #8 sheet metal screws supplied.

Place the finishing collar on the 6” (15.2 cm) elbow, as it

will be positioned later.

inch diameter hole through the

10

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

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F1

F2

3" Tube

"X"

2 1/2" Minimum extension

beyond wall.

F4

Gallons "X" Inches (cm)

40 9 1/8" (23.17 cm) -

19 1/8" (48.57 cm)

50 8 1/8" (20.63 cm)

- 18 1/8" (46 cm)

Placing 3" (7.6 cm) Diameter Main
Vent Tube through Exterior Wall

Inspect the vent tube upon opening the kit to assure

three silicone sealing bands are included and
positioned at the sealing points.

Install the 3" main vent tube onto the end of the 3"

inner elbow & seal with silicone band by folding the
band back over the seam of both tubes.

Extend the 3” (7.6 cm) tube assembly to its required

length. Be sure a minimum of 2 1/2" extends beyond
the outer wall. (F1)

Move high temperature silicone band to connecting

joints as shown. (F2)

"X" Optional kit that provides additional adjustment up to 48" (121.9 cm) can be purchased seperately.

Assembling the 6” (15.2 cm)

Vent Terminal Base (Outside)

Sheet Metal Screws &
Silicone Sealant

G1

G2

G3

Diameter Vent Tube Assembly w/
vent terminal base.

Inspect the vent tube upon opening the kit to assure

two silicone sealing bands are included and
positioned at the sealing points.

Attach the outer 6” (15.2 cm) main tube to the vent

terminal base as shown on left.. (G1)

Drill a 1/8”

collar of the base. (G2)

Secure with a #8 sheet metal screw, supplied. Repeat

with a second hole and screw approximately 180°
from the first. (G3)

inch diameter hole through the tube and the

Vent Terminal Base (Outside)

H1

Outside

Wall

Main Tube

From the outside of the building, insert the

6” (15.2 cm) vent tube/base assembly through the
hole in the exterior wall and onto the 6” (15.2 cm)
elbow. Slide as needed into place. (H1).

An improper seal can cause product performance and
nuisance pilot outages.

11

Attaching the 6” (15.2 cm) Diameter

Installing the water heater.

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*

V a cuum Relief V a lve

(Not Supplied)

If required, install per local codes

and valve manufacturer’s

instructions.

✚✚✚

Screw Anchors

Seal with Silicone Sealant

*

Finishing Collar (Inside)

6" Inner Sliding Tube

6

” (15.2 cm)

90° Elbow

(Aluminum)

Top of

Plenum

✱

6" Tube

(15.2 cm)

3" Tube

(7.6 cm)

Securing Vent Cap / Base Assembly to

Wall

J3

J1

J2

Vent Terminal Base

the Exterior Wall

Next place the 3” (7.6 cm) main tube fully onto the collar

of the vent cap. Then seat the cap against the base. (J1)

Secure the vent cap/base assembly to the exterior wall

with four screw anchors appropriate for the type of wall
construction. The 6” (15.2 cm) tube should be essentially
level. However, a small amount of upward pitch will not
affect operation. (J2)

Caulk the junctions of the vent terminal base and the

exterior wall with silicone sealant (Not Supplied). (J3)

An improper seal can cause product performance and
nuisance pilot outages.

Final Assembly and Sealing of the Vent

Vent Terminal Base (Outside)

K

L4

L5

L1

✱

L2

L2

▲

L3

L3

✚
✚

▲

▲Seal with Silicone Band

✱Seal with Silicone Sealant

Vent Terminal
Cap (Outside)

Outside Wall

Sheet Metal Screws

System

Position and fasten the finishing collar, previously

installed on the 6” (15.2 cm) elbow, against the wall to
close the opening around the tube. (K)

Make certain the 6” (15.2 cm) inner sliding air tube has

been fully engaged onto the 6" (15.2 cm) elbow.(L1)

Drill two 1/8” inch holes (180° apart) in the junction of

the two joints in the 6" (15.2 cm) tube. (L2)

Fasten with four #8 sheet metal screws supplied. (L3)

Using a flat head screw driver inserted through the holes

in the vent cap, roll the silicone band over the seam to
seal. (L4)

Seal all the 6” (15.2 cm) tube joints with the silicone

bands provided (L5). Seal the elbow joint to the plenum
using silicone sealant. Again, an improper seal can cause

product performance and nuisance pilot outages. (M)

Typical Installation

Air Tube

Heat Trap

6" Min (15.2 cm).

Hot Water

Outlet to

Fixtures

NOTICE: The National
Fuel Gas Code (NFGC)
mandates a manual gas
shut-off valve: See (NFGC)
for complete instructions.
Local codes or plumbing
authority requirements may
vary from the instructions
or diagrams provided and
take precedent over these
instructions.

12

Manual Gas Shut-Off

To Gas Supply

Ground Joint Union

Sediment Trap

Gas Control (Thermostat)

Jacket Door

Auxiliary Catch Pan

Catch Pan Pipe to suitable drain.

Temperature
and Pressure
Relief Valve

Cap

Union

Vent Terminal Cap
(Outside)

Anode Rod (Located under top pan) Not
accessible. Refer to Protection Plus Kit for
additional protection.

Union

Heat Trap
6" Min. (15.2 cm)

To Cold Water Supply

Shut-Off Valve

Expansion Tank
(if required)

Relief Valve Discharge Line
to Suitable Open Drain

Drain Valve

Air Gap - 6" (15.2 cm)

NOTICE: Do not apply
heat to the HOT or COLD
water connections. If sweat
connections are used, sweat
tubing to adapter before
fitting adapter to the water
connections on heater.
Any heat applied to the
water supply fittings will
permanently damage the
dip tube, nipples and/or
heat traps.

Thermal Expansion

Determine if a check valve exists in the inlet water line. Check with your local water utility
company. It may have been installed in the cold water line as a separate back flow preventer, or

it may be part of a pressure reducing valve, water meter or water softener. A check valve located
in the cold water inlet line can cause what is referred to as a “closed water system”. A cold water
inlet line with no check valve or back flow prevention device is referred to as an “open” water
system.

As water is heated, it expands in volume and creates an increase in the pressure within the water
system. This action is referred to as “thermal expansion”. In an “open” water system, expanding
water which exceeds the capacity of the water heater flows back into the city main where the
pressure is easily dissipated.

A “closed water system”, however, prevents the expanding water from flowing back into the
main supply line, and the result of “thermal expansion” can create a rapid and dangerous
pressure increase in the water heater and system piping. This rapid pressure increase can quickly
reach the safety setting of the relief valve, causing it to operate during each heating cycle. Thermal
expansion, and the resulting rapid, and repeated expansion and contraction of components in the
water heater and piping system can cause premature failure of the relief valve, and possibly the
heater itself. Replacing the relief valve will not correct the problem!

The suggested method of controlling thermal expansion is to install an expansion tank in the
cold water line between the water heater and the check valve (see illustration on page 12). The
expansion tank is designed with an air cushion built in that compresses as the system pressure
increases, thereby relieving the over pressure condition and eliminating the repeated operation of
the relief valve. Other methods of controlling thermal expansion are also available. Contact your
installing contractor, water supplier or plumbing inspector for additional information regarding
this subject.

Water Supply Connections

Refer to the illustration on page 12 for suggested typical installation. The installation
of unions or flexible copper connectors is recommended on the hot and cold water
connections so that the water heater may be easily disconnected for servicing if
necessary. The HOT and COLD water connections are clearly marked and are 3/4” NPT
on all models. Install a shut-off valve in the cold water line near the water heater.

A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves
and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22, is supplied and must
remain in the opening provided and marked for the purpose on the water heater. No valve of any type
should be installed between the relief valve and the tank. Local codes shall govern the installation of
relief valves.

Relief Valve

The pressure rating of the relief valve
must not exceed 150 PSI (1034 kPa), the
maximum working pressure of the water
heater as marked on the rating plate.

The Btuh rating of the relief valve must
equal or exceed the Btuh input of the
water heater as marked on its rating plate.

Position the outlet of the relief valve
above a suitable open drain to eliminate
potential water damage. Piping used
should be of a type approved for hot water
distribution.

The discharge line must be no smaller
than the outlet of the valve and must
pitch downward from the valve to allow
complete drainage (by gravity) of the
relief valve and discharge line.

The end of the discharge line should not
be threaded or concealed and should be
protected from freezing. No valve of
any type, restriction, or reducer coupling
should be installed in the discharge line.

13

Installing the water heater.

WARNING: The tank
must be full of water before
heater is turned on. The
water heater warranty does
not cover damage or failure
resulting from operation
with an empty or partially
empty tank.

NOTICE: Additional
information on this subject
may be found at www.rheem.
com, under Rheem Water
Heating, "Support", scroll
down to the Technical Service
Section and to Bulletins 1400
Series Section and choose
Bulletin #1402.

WARNING: Do not attempt to convert this water heater for use with a different type of gas other than the type
shown on the rating plate. Such conversion could result in hazardous operating conditions.

To Fill the Water Heater

Make certain that the drain valve is
closed, then open the shut-off valve in the
cold water supply line.

Open each hot water faucet slowly to

Condensation

Condensation can form on the tank
when it is first filled with water.
Condensation might also occur with a
heavy water draw and very cold inlet
water temperatures.

Drops of water falling on the burner can
produce a sizzling or pinging sound. The
water may also be seen beneath the water
heater.

allow the air to vent from the water
heater and piping.

A steady flow of water from the hot water
faucet(s) indicates a full water heater.

This condition is not unusual, and will
disappear after the water becomes heated.
If, however, the condensation continues,
examine the piping and fittings for
possible leaks.

Gas Supply

The branch gas supply line to the water
heater should be clean 1/2” black steel
pipe or other approved gas piping
material.

A ground joint union or ANSI design
certified semi-rigid or flexible gas
appliance connector should be installed
in the gas line close to the water heater.
A manual gas shut-off valve should be
at least 5 ft. (1.5 m) above the floor and
readily accessible.

Use compound sparingly on male threads
only. The compound used on threaded
joints of the gas piping must be of the type
resistant to the action of LP gas.

Where a sediment trap is not incorporated
as part of the appliance, a sediment trap
shall be installed downstream of the
equipment shutoff valve as close to the
inlet of the appliance as practical at the
time of the appliance installation. The
sediment trap shall be either a tee fitting

with a capped nipple in the bottom outlet
or other device recognized as an effective
sediment trap.

Do not use excessive force (over 31.5
ft lbs.) (42.7 Nm) in tightening the pipe
joint at the gas control (thermostat) inlet,
particularly if teflon pipe compound is
used, as the valve body may be damaged.

The inlet gas pressure to the water heater
must not exceed 10.5” w.c. (2.65 kPa) for
natural gas or 14" w.c. (3.5 kPa) for LP
gas. For purposes of input adjustment, the
minimum inlet gas pressure (with main
burner on) is shown on the water heater
rating plate. If high or low gas pressures
are present, contact your gas supplier for
correction.

● If flexible connectors are used, the

maximum length shall not exceed 36”
(91 cm).

● If lever type gas shut-offs are used,

they shall be T-Handle type.

WARNING: Never use
an open flame to test for
gas leaks, as property
damage, personal injury, or
death could result.

14

Leak Testing

The water heater and its gas connections
must be leak tested at normal operating
pressures before it is placed in operation.

Turn on the manual gas shut-off

valve near the water heater.

Use a soapy water solution to test for

leaks at all connections and fittings.

Bubbles indicate a gas leak that must
be corrected.

The factory connections to the gas
control (thermostat) should also be leak
tested after the water heater is placed in
operation.

WARNING: If local
codes require external
application of insulation
blanket kits the
manufacturer’s instructions
included with the kit must
be carefully followed.

Pressure Testing the Gas Supply System

The water heater and its manual gas
shut-off valve must be disconnected from
the gas supply piping system during any
pressure testing of that system at
pressures in excess of 1/2 psi (14” w.c.).

The water heater must be isolated from
the gas piping system by closing the
manual gas shut-off valve during any
pressure testing of the gas supply piping
at pressures equal to or less than
1/2 psi (14” w.c.).

High Altitude

Ratings of gas appliances are based
on sea level operation. This water heater
is suitable and certified for use at high
altitudes. Refer to the altitude label on
the water heater for maximum allowable
installation altitude Please contact your
local distributor or place of purchase for a
high altitude model.

WARNING: Failure to install a
water heater suitable for the altitude at
the location it is intended to serve, can
result in improper operation of the
appliance resulting in property damage
and/or, producing carbon monoxide
gas, which could result in personal
injury, or death.

Insulation Blankets

Insulation blankets, available to the
general public, for external use on gas
water heaters are not necessary. The
purpose of an insulation blanket is to
reduce the standby heat loss encountered
with storage tank heaters. This water
heater meets or exceeds the National
Appliance Energy Conservation Act
standards with respect to insulation and
standby loss requirements making an
insulation blanket unnecessary.

The manufacturer’s warranty does not
cover any damage or defect caused by
installation, attachment or use of
any type of energy saving or other
unapproved devices (other than those
authorized by the manufacturer) into, onto
or in conjunction with the water heater.
The use of unauthorized energy saving
devices may shorten the life of the water
heater and may endanger life and property.

CAUTION: If local codes require the

application of an external insulation
blanket to this water heater, pay careful
attention to the following so as not to
restrict the proper function and
operation of the water heater:

● Do not cover the operating or warning

labels attached to the water heater or
attempt to relocate them on the exterior
of insulation blanket.

 Do not apply insulation to the top of the

water heater. as this will interfere with
the safe operation of the water heater
and venting system.

 Do not cover the burner access door,

jacket door, gas control (thermostat)/gas
valve or pressure and temperature relief
valve.

The manufacturer disclaims any
responsibility for such loss or injury
resulting from the use of such
unauthorized devices.

15

Installing the water heater.

Hot and Cold Pipe Insulation Installation

Typical vertical piping arrangement

For increased energy efficiency, some
water heaters have been supplied with
two 24” (60.9 cm) sections of pipe
insulation. Please install the insulation,

Typical horizontal piping arrangement

according to the illustrations above, that
best meets your requirements.

Heat Trap

For increased energy efficiency, some
water heaters have been supplied with
factory installed 3/4” NPT heat traps in
the hot outlet line and cold water inlet
line.

NOTICE: Do not apply heat to the
HOT or COLD water connections. If
sweat connections are used, sweat
tubing to adapter before fitting adapter
to the water connections on heater. Any
heat applied to the water supply fittings
will permanently damage the dip tube,
nipples, and/or heat traps.

During Installation of this water heater...........

DO

❑ DO check inlet gas pressure to ensure

that it is within the range specified on the
rating plate.

❑

DO provide adequate air for combustion
and ventilation as discussed in the Use and
Care Manual and the National Fuel Gas
Code.

❑

DO maintain proper clearances to
combustibles as specified on the instruction/
warning label.

❑

DO ensure that the venting system
complies with the guidelines found in the
Use and Care Manual and National Fuel Gas
Code.

❑

DO contact a qualified service technician
if the pilot or main burner will not stay lit.

DON’T

❑

DON’T block or restrict the vent

terminal.

❑

DON’T remove the Burner Access
Door unless absolutely necessary. This
should only be done by a qualified service
technician. A new burner access door gasket
must be installed on any burner access door
that has been removed.

❑

DON’T install this water heater where
standing water may occur. The base of the
water heater is meant to be mounted on a dry
surface.

❑ DON’T operate the water heater if the

sight glass or burner access door grommet is
damaged or broken.

16

Installation Checklist

A. Water Heater Location

❑

Close to outside wall.

❑

Indoors and protected from freezing

temperatures.

❑

Proper clearance from combustible surfaces
observed and water heater not installed on
carpeted floor.

❑

Sufficient fresh air supply for proper
operation of water heater.

❑

Air supply free of corrosive elements and
flammable vapors.

B. Water Supply

❑

Water heater completely filled with water.

❑

Air purged from water heater and piping.

❑

Water connections tight and free of leaks.

❑

Provisions made to protect area from water

damage.

❑

Sufficient room to service heater.

❑

Combustible materials, such as clothing,
cleaning materials, rags, etc. clear of the base
of the heater.

C. Gas Supply

❑

Gas line equipped with shut-off valve, union
and sediment trap.

❑

Approved pipe joint compound used.

D. Relief Valve

❑

Temperature and Pressure Relief Valve
properly installed and discharge line run to
open drain.

❑

Discharge line protected from freezing.

E. Venting

❑

Flue baffle properly hung in top of heater’s
flue.

❑

Air tube and vent tube properly installed.

❑

Soap and water solution used to check all
connections and fittings for possible gas
leak.

❑

Gas Company inspected installation
(if required).

❑

Vent terminal, air tube sealed with silicone
bands and sealants.

❑

Air tube securely fastened with screws.

17

Supplemental instructions for gas water heaters installed

V a cuum Relief Va lve

(Not Supplied)

If required, install per local codes

and valve manufacturer’s

instructions.

in potable/space heating applications.

Local codes or plumbing authority requirements may vary from the instructions or diagrams provided
in this manual and take precedent over these instructions.

Hot water
supply to
house

Hot water
supply to
heating
unit

From HOT

outlet on

water heater

Tee fitting for vertical hot
water supply lines.

Hot water
supply to
house

From HOT

outlet on

water heater

Hot water supply
to heating unit

Tee fitting for horizontal hot

Combination Potable and Space Heating Application

Tee fitting must be installed as shown.
This ensures that any air in the water lines
will be purged through the domestic water
faucets and showers.

DANGER: When this system
requires water for space heating at
elevated temperatures [above 125°F
(52°C.)], a mixing or tempering valve
must be installed in the hot water
supply line to the house in order to
reduce the scald hazard potential.

DANGER: Any piping or components
used in the installation of this water
heater in a combination potable and
space heating application must be
suitable for use with drinking water.

DANGER: If this water heater is
installed in an application intended to
supply domestic hot water needs and
hot water for space heating purposes,
do not connect the heater to an existing
heating unit or components of a heating
system that have previously been used
with a non drinking water system. Toxic
chemicals such as those used for boiler
treatment may be present and will
contaminate the drinking water supply
causing possible health risks. Never
introduce toxic chemicals, such as those
used for boiler treatment, into this
system.

Notice: 50' - 0" maximum
distance from water heater to
fan coil (developed length) is
required for Massachusetts State.

water supply lines.

Typical Piping Diagram for Combination Potable/Space Heating Installation

Nominal 3/4" size mixing or tempering valve
(refer to warning above). Follow mixing or
tempering valve manufacturer’s instructions
for installation of the valve.

Spring loaded check valve in heating

unit hot water supply line and cold water

return line (not supplied with water

NOTE: This check valve is incorporated

in some heating units. Refer to the
installation instructions supplied with
specific heating unit to determine if it

Isolation valve in hot water supply

line to heating unit (not supplied with

Temperature and Pressure Relief

Valve, tie to location approved by

heater)

is required.

water heater)

local code

Minimum of 2'-0" developed length
of 3/4" type "L" copper from the
water heater connection.

Air vent

3/4"
Shut-Off
Valve
(Typ.)

3/4" Tempered
domestic hot water
supply to house.

Heat Trap
6” Min.

2 Gallon Thermal
Expansion Tank
(if required-not
supplied with water
heater)

Pressure Gauge

3/4" Check Valve with 1/8" Hole

3/4" Shut-Off Valve (Typ.)

140°

120° to 130°

3/4" Shut-Off Valve (Typ.)

3/4" cold water supply

Piping loop between water
heater and fan coil shall
be flow guard gold CPVC
or equal

Hot water
to space heater

Hot water coil

All bronze pump.

Check valve
internal in pump.

Air bleed valve.

Water Sample Tap.

Gas line to water heater

Temperature and pressure relief

Water Heater drain pan installed
in accordance with the Local and

Water Heater to be in
accordance with the Local and
State Energy Code

All water piping shall be insulated
in accordance with Local and State
Energy Code.

valve discharge line

State Code

18

18

Gas Fired

Water Heater

Isolation valve in
cold water return
line from heating
unit (not supplied
with water heater)

Gas Direct Vent
discharge must comply
with Local and State
Code

Combustion Air Inlet
Openings

6” Air Gap

3/4" HWS &
HWR to Heating
Coil.

Drain valve
(not supplied with
water heater)

To HVAC
Unit.

T

Air Handler

Electronically controlled pump timer.
Activates every 6 hours for 60 seconds.
Wire to bronze pump.

FAN
ON
OFF
HEAT
COOL

Lighting the water heater.

instructions exactly, a re or explosion may result causing property damage,
personal injury or loss of life.

If you do not follow these instructions and the Use & Care Manual

Before operating this water heater, be sure to read and follow the instructions on the label pictured
below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to
do so can result in unsafe operation of the water heater resulting in property damage, personal injury,
or death . Should you have any problems reading or following the instructions in this manual, STOP,
and get help from a qualified person.

19

Operating the water heater.

!

CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a
long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE!! To dissipate such
gas and to reduce risk of injury, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink
before using any electrical appliance connected to the hot water system. If hydrogen is present, there will be an unusual sound
such as air escaping through the pipe as the water begins to flow. Do not smoke or use an open flame near the faucet at the
time it is open.

Safety Precautions

Do turn off manual gas shut-off valve if water heater

has been subjected to over heating, fire, flood,
physical damage or if the gas supply fails
to shut off.

Do Not turn on water heater unless it is completely

filled with water.

Do Not turn on water heater if cold water supply

shut-off valve is closed.

Do Not allow combustible materials such as

newspaper, rags or mops to accumulate near
water heater.

Do Not store or use gasoline or other flammable

vapors and liquids, such as adhesives or paint thinner,
in vicinity of this or any other appliance.
If such flammables must be used, open doors
and windows for ventilation, and all gas burning
appliances in the vicinity should be shut off including
their pilot burners, to avoid vapors igniting.

NOTICE: Flammable vapors can be drawn by air
currents from surrounding areas to the water heater.

If there is any difficulty in understanding or following

the Operating Instructions or the Care and Cleaning
section, it is recommended that a qualified person or
serviceman perform the work.

DANGER: Hotter water

increases the Potential
for Hot Water SCALDS

.
Households with small
children, disabled, or elderly
persons may require a 120°F
(49°C) or lower gas control
(thermostat) setting to
prevent contact with HOT
water.

Water Temperature Setting

The temperature of the water in the water
heater can be regulated by setting the
temperature dial on the front of the gas
control (thermostat).

Safety and energy conservation are factors
to be considered when selecting the water
temperature setting of the water heater’s
gas control (thermostat(s)). The lower the
temperature setting, the greater the savings
in energy and operating costs.

To comply with safety regulations, the gas
control (thermostat) was set at its lowest
setting before the water heater was shipped
from the factory. The recommended
starting point temperature is 120°F (49°C).

Water temperatures above 125°F (52° C)
can cause severe burns or death from
scalding. Be sure to read and follow the
warnings outlined in this manual and on
the label located on the water heater near
the gas control (thermostat).

Mixing valves are available for reducing
point of use water temperature by mixing
hot and cold water in branch water
lines. Contact a licensed plumber or
the local plumbing authority for further
information. (See page 4 for more details.)

The chart below may be used as a guide in
determining the proper water temperature
for your home.

Time/Temperature Relationship in Scalds

Water Temperature Time To Produce a Serious Burn

120°F (49°C) More than 5 minutes
125°F (52°C) 11/2 to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 11/2 seconds
155°F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

20

Water Temperature Setting…

!

Maximum water temperatures occur just
after the burner has shut off. To determine
the water temperature, turn on a hot water
faucet and place a thermometer in the
water stream.

The reference mark p on the rim of
the temperature dial, represents an
approximate water temperature of
120°F (49°C).

The reference mark
approximate water temperature of
130°F (54°C).

Each reference mark above or below
these points indicates an approximate
change of 10°F (5.5°C).

To adjust the temperature, turn the
temperature dial to an initial setting of
120°F (49°C).

A condition known as “stacking” or
“layering” can occur when a series of
short and frequent hot water draws are
taken.

The hottest temperature water will be at
the top of the tank, closest to the outlet
pipe delivering hot water to the home.

Stacking can cause this top layer of water
to be hotter than the water toward the
bottom of the tank near the gas control
(thermostat).

A

represents an

Therefore, always remember to test the
water temperature with your hand before
use and remember that hotter water
increases the risk of scald injury.

Also, always supervise young children or
others who are incapacitated.

The gas control (thermostat) is constructed
with a built in safety shut-off device
designed to shut off the gas supply to the
burner if the pilot flame is extinguished
for any reason.

The gas control (thermostat) is also
equipped with a single use gas shut off
device that will shut off the gas supply
to the burner if the water heater exceeds
normal operating temperatures. Refer to
the (Before You Call For Service) section
of this manual, or contact your dealer.

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

If the water heater has been subjected to
fire, flood or physical damage, turn off
the manual gas control (shut-off) valve,
and do not operate the water heater again
until it has been checked by qualified
personnel.

NOTICE: Replace any part of the gas
control system which has been under water.

110°F

(43°C)

100°F
(38°C)

90°F
(32°C)

80°F
(27°C)

Temperatures are approximate

120°F

(49°C)

130°F

(54°C)

140°F

(60°C)

150°F

(66°C)

160°F

(71°C)

21

Care and cleaning of the water heater.

!

!

!

!

Draining the Water Heater

CAUTION: Shut off gas to the water

heater at the gas control (thermostat) gas
cock or manual shut-off valve before
draining water.

DANGER: Before manually operating the
temperature and pressure relief valve, make
certain no one will be exposed to the hot
water released by the valve. The water
drained from the tank may be hot enough to
present a scald hazard and should be
directed to a suitable drain to prevent injury
or damage.

In order to drain the water heater, turn off
the cold water supply. Open a hot water
faucet or lift the handle on the relief valve
to admit air to the tank.

Attach a garden hose to the drain
valve on the water heater and direct
the stream of water to a drain. Open
the valve.

DANGER: Before
manually operating the
relief valve, make certain
no one will be exposed to
the danger of the hot water
released by the valve. The
water may be hot enough to
create a scald hazard. The
water should be released
into a suitable drain to
prevent injury or property
damage.

DANGER: Hotter water
increases the potential for
Hot Water Scalds.

DANGER: Failure to
perform the recommended
Routine Preventative
Maintenance can harm the
proper operation of this
water heater, which can cause
carbon monoxide dangers,
excessive hot water
temperatures and other
potentially hazardous
conditions.

Routine Preventative Maintenance

Properly maintained, your water heater
will provide years of dependable trouble­free service.

It is recommended that a periodic
inspection of the gas control (thermostat),
burner, relief valve, internal flue-way and
venting system should be made by service
personnel qualified in gas appliance repair.

It is suggested that a routine preventative
maintenance program be established and
followed by the user.

At least once a year, lift and release the
lever handle on the temperature pressure
relief valve, located near the top of the
water heater, to make certain the valve
operates freely. Allow several gallons to
flush through the discharge line to an open
drain.

NOTICE: If the temperature and
pressure relief valve on the hot water
heater discharges periodically, this
may be due to thermal expansion in a
closed water system. Contact the water
supplier or your plumbing contractor on
how to correct this. DO NOT plug the
relief valve outlet.

A water heater’s tank can act as a settling
basin for solids suspended in the water.
It is therefore not uncommon for hard
water deposits to accumulate in the bottom
of the tank. If allowed to accumulate,
these solids can cover the gas control

(thermostat) sensors, causing the sensors to
operate erratically. Because accumulated
solids can prevent the gas control
(thermostat) sensors from accurately
reading the water temperature, the water
at the fixture can be hotter than the gas
control (thermostat) dial setting. It is
suggested that a few quarts (litres) of water
be drained from the water heater’s tank
every month to clean the tank of these
deposits.

Rapid closing of faucets or solenoid valves
in automatic water using appliances can
cause a banging noise heard in a water
pipe. Strategically located risers in the
water pipe system or water hammer
arresting devices can be used to minimize
the problem.

The anode rod should be inspected and
replaced when more than 6” (15.2 cm) of
core wire is exposed at either end of the
rod.

Make sure the cold water supply is turned
off before replacing the anode rod.

DANGER: Combustible
materials, such as clothing,
cleaning materials, or
flammable liquids, etc., must
not be placed against or next
to the water heater.

22

Housekeeping

Vacuum around the base of the water
heater for dust, dirt and lint on a regular
basis. Visually inspect pilot burner and
relight if necessary.

To ensure sufficient ventilation and
combustion air supply, proper clearances
must be maintained.

When installed in a closet, DO NOT block
or obstruct any of the combustion air inlet
openings located around the perimeter of
the water heater. A minimum of 1” (2.5 cm)
is required between these combustion air
inlet openings and any obstruction.

!

Proper burner and pilot burner
pattern.

Venting System Inspection

It is recommended that the water heater’s
internal flue, vent, and air pipes be
inspected annually to be certain it is clean.

Inspect the gas venting system and the
termination cap.

Make certain the vent system, vent, and
air pipes is properly sealed and securely
attached.

Burner Inspection

Visually inspect the pilot and main
burners annually.

Through the sight glass, inspect the pilot
burner flame with the main burner off and
inspect the main burner while firing.

If any unusual burner operation is noted,
the water heater should be shut off
until qualified service assistance can be
obtained.

If after inspection of the vent system
you found soot or deterioration;
call the local gas utility to correct the
problem and clean the flue, and venting
system or replace the flue baffle, before
resuming operation of the water heater.

CAUTION: For your safety, cleaning of
the burner must be performed only by
qualified service personnel. The burner
chamber is a sealed area. If the burner
access door is removed, the burner access
door gasket must be replaced.

For cleaning, remove the burner from the
water heater. A vacuum cleaner can be
used on the burner and floor shield inside
the water heater. The burner can also be
cleaned by scrubbing with mild detergent.

NOTICE: Refer to the
Hydrogen Gas Caution in the
Operating Instructions.

NOTICE: Do not remove
the anode rod from the water
heater’s tank, except for
inspection and/or replacement,
as operation with the anode
rod removed will greatly
shorten the life of the glass
lined tank and will exclude
warranty coverage.

Vacation and Extended Shut-Down

If the water heater is to remain idle for an
extended period of time, the power and
water to the appliance should be turned off
to conserve energy and prevent a build-up
of dangerous hydrogen gas.

The water heater and piping should be
drained if they might be subjected to
freezing temperatures.

After a long shut-down period, the water
heater’s operation and controls should be
checked by qualified service personnel.

Make certain the water heater is
completely filled again before placing it
in operation.

Anode Rod

This water heater is equipped with an
anode rod designed to prolong the life
of the glass lined tank. The anode rod is
slowly consumed, thereby eliminating or
minimizing corrosion of the glass lined
tank.

Water sometimes contains a high sulfate
and/or mineral content and together with
cathodic protection process can produce
a hydrogen sulfide, or rotten egg odor in
the heated water. Chlorination of the water
supply should minimize the problem.

23

Before You Call For Service…

Troubleshooting Tips

Save time and money! Review the charts on the following pages first and you may not need to call for service.

Problem Possible Causes What To Do

Condensation This usually happens when  This is normal. After the water in the tank warms

a new water heater is up, the condensation will disappear. If, however, the
filled for the first time. condition persists, examine the piping and fittings
for possible leaks.

Moisture from the products  This is normal and will disappear in time. Excessive
of combustion condensing condensation can cause pilot burner outage.
on the tank surface.

An undersized water  Use a water heater size that meets the requirements
heater will cause of your needs.
condensation.  Contact a qualified service technician for service.

Yellow flame Scale on top of the burner.  Contact a qualified service technician to remove scale.
or soot

Flue or Combustion air inlet  Remove obstruction or debris from flue or

openings are restricted. combustion air inlet openings on water heater jacket.

Not enough combustion or  Proper operation of the water heater requires air for
ventilation air supplied to combustion and ventilation. See the Combustion and
the water heater location. Ventilation Air information in the “Installing The
Water Heater” section of this manual.

Unable to light Air in gas line.  Contact a qualified service technician to purge the air
the pilot burner from the gas line.

Pilot burner orifice clogged.  The pilot burner should be cleaned or replaced by a

qualified service technician.

Pilot burner tube pinched or  The pilot burner should be cleaned, repaired or
clogged. replaced by a qualified service technician.

Gas cock knob not  See the “Lighting The Water Heater” section of this
correctly positioned. manual.

Pilot burner does not stay Loose thermocouple.  The connection at the gas control (thermostat) should
lit when the RED be tightened by a qualified service technician.
button is released

Thermocouple defective.  The thermocouple should be replaced by a qualified

service technician.

Safety magnet defective.  The gas control (thermostat) should be replaced by a
qualified service technician.

Gas Control’s (Thermostat’s)  The gas control (thermostat) should be replaced by a
single use gas shut-off device qualified service technician.
has opened.

Improper vent assembly  Contact a qualified service technician for service.
and installation.

CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or
other safety devices. Refer repairs to qualified service personnel.

24

Problem Possible Causes What To Do

Rumbling noise Scale and sediment  Clean tank.

in tank.

Relief valve Pressure build up  This is an unacceptable condition and must be
producing popping caused by thermal corrected. Contact the water supplier or plumbing
noise or draining expansion to a contractor on how to correct this. Do not plug the
closed system. relief valve outlet.

Not enough or Water usage may have  Wait for the water heater to recover after an
no hot water exceeded the capacity abnormal demand.
of the water heater.

Low gas pressure.  Check gas supply pressure and manifold pressure.

The pilot burner may be out.  Check the pilot burner. If necessary, relight using the
instructions in the “Lighting The Water Heater”
section of this manual.

The gas control (thermostat)  See the “Water Temperature Setting” of The Water
may be set too low. Heater section of this manual.

Leaking or open hot  Make sure all faucets are closed.
water faucets.

Cold water inlet ● This is normal. The colder inlet water takes longer
temperature may be to heat.
colder during the
winter months.

Water is too hot The gas control (thermostat) ● See the “Water Temperature Setting” of The Water
is set too high. Heater section of this manual.

Gas Control (Thermostat) ● Contact a qualified service technician to replace the
Defective. gas control (thermostat).

CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or

other safety devices. Refer repairs to qualified service personnel.

25

Replacement Parts.

Ve nt

Te rminal Cap

T&P Relief Valve

Drain Valve

Shroud

Drain Valve

Inner Door

Jacket Door

Burner

Gas Control
(thermostat)

Pilot Supply

Tube

Piezo

Ignitor Wire

Thermocouple

Burner Supply

Tube

Burner

Orifice

Dip Tube

Dip Tube

Gasket

Flue Baffle

and

Hanger

Main Air Tube

Sliding Air Tube

Air Tube Elbow

Inner Door

Gasket

Burner

Cone

Grommet

Instructions For Placing a Parts Order

Address parts orders to the distributor
or store from where the heater was
purchased.

All parts orders should include:

The model and serial number of the

water heater from the rating plate.

Specify type of gas (natural or LP)

as marked on the rating plate.

Part description (as noted below) and

number of parts desired.

CAUTION: For your safety, DO
NOT attempt repair of gas piping,
gas control (thermostat), burners,
vent connectors or other safety devices.
Refer repairs to qualified service
personnel.

Burner Assembly Kit

The kit provides extra speed clips and
tamper resistant screws.

26

Notes

27

IF YOU NEED SERVICE

1. Should you have any questions about your new water
heater, or if it requires adjustment, repair, or routine
maintenance, it is suggested that you first contact your
installer, plumbing contractor or previously agreed upon
service agency. In the event the firm has moved, or is
unavailable, refer to the telephone directory, commercial
listings or local utility for qualified service assistance.

2. Should your problem not be solved to your complete
satisfaction, you should then contact the Manufacturer’s
National Service Department at the following address:

In the United States:
2600 Gunter Park Drive
Montgomery, Alabama 36109-1413
Phone: [phone].

:

Important Instructions for the Commonwealth of Massachusetts

The Commonwealth of Massachusetts requires compliance with 5.08:

Modications to NFPA-54, Chapter 10 regulation 248 CMR 4.00 and

5.00 for installation of through – the – wall vented gas appliances as
follows:
(a) For all side wall horizontally vented gas fueled equipment installed in
every dwelling, building or structure used in whole or in part for residen­tial purposes, including those owned or operated by the Commonwealth
and where the side wall exhaust vent termination is less than seven (7)

feet above nished grade in the area of the venting, including but not lim­ited to decks and porches, the following requirements shall be satised:

1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the
time of installation of the side wall horizontal vented gas fueled equip-

ment, the installing plumber or gastter shall observe that a hard wired

carbon monoxide detector with an alarm and battery back-up is installed

on the oor level where the gas equipment is to be installed. In addition,
the installing plumber or gastter shall observe that a battery operated or

hard wired carbon monoxide detector with an alarm is installed on each
additional level of the dwelling, building or structure served by the side
wall horizontal vented gas fueled equipment. It shall be the responsibility
of the property owner to secure the services of qualied licensed profes­sionals for the installation of hard wired carbon monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equip­ment is installed in a crawl space or an attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed on

the next adjacent oor level.

b. In the event that the requirements of this subdivision can not be met
at the time of completion of installation, the owner shall have a period of
thirty (30) days to comply with the above requirements; provided, how­ever, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.

2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon
monoxide detector as required in accordance with the above provisions
shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certi-

ed.

3. SIGNAGE. A metal or plastic identication plate shall be permanently

mounted to the exterior of the building at a minimum height of eight (8)
feet above grade directly in line with the exhaust vent terminal for the
horizontally vented gas fueled heating appliance or equipment. The sign
shall read, in print size no less than one-half (1/2) inch in size, “GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUC-

28

When contacting the manufacturer, the following

information will be requested:

a. Model and serial number of the water heater as shown on

the rating plate attached to the jacket of the heater.

b. Address where the water heater is located and physical

location.

c. Name and address of installer and any service agency who

performed service on the water heater.

d. Date of original installation and dates any service work was

performed.
e. Details of the problems as you can best describe them.
f. List of people, with dates, who have been contacted

regarding your problem.

TIONS”.

4. INSPECTION. The state or local gas inspector of the side wall hori­zontally vented gas fueled equipment shall not approve the installation
unless, upon inspection, the inspector observes carbon monoxide detec­tors and signage installed in accordance with the provisions of 248 CMR

5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR

5.08(2)(a)1 through 4:

1. The equipment listed in Chapter 10 entitled “Equipment Not Required
To Be Vented” in the most current edition of NFPA 54 as adopted by the
Board; and

2. Product Approved side wall horizontally vented gas fueled equipment
installed in a room or structure separate from the dwelling, building or
structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT
VENTING SYSTEM PROVIDED. When the manufacturer of Product
Approved side wall horizontally vented gas equipment provides a vent­ing system design or venting system components with the equipment, the
instructions provided by the manufacturer for installation of the equip­ment and the venting system shall include:

1. Detailed instructions for the installation of the venting system design
or the venting system components; and

2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT
VENTING SYSTEM NOT PROVIDED. When the manufacturer of a
Product Approved side wall horizontally vented gas fueled equipment

does not provide the parts for venting the ue gases, but identies “spe­cial venting systems”, the following requirements shall be satised by the

manufacturer:

1. The referenced “special venting system” instructions shall be included
with the appliance or equipment installation instructions; and

2. The “special venting systems” shall be Product Approved by the
Board, and the instructions for that system shall include a parts list and
detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side
wall horizontally vented gas fueled equipment, all venting instructions,
all parts lists for venting instructions, and/or all venting design instruc­tions shall remain with the appliance or equipment at the completion of
the installation.