Bradford White mi5036en10 User manual

238-35846-00T REV 3/02
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A Spanish language version of these instructions is available by contacting
the company listed on the rating plate.
La version espanola de estas instrucciones se puede obtener al escribirle
a la fabrica cuyo nombre aparece en la placa de especificaciones.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
For your family’s comfort, safety and convenience, we
recommend this water heater be installed and serviced by a
plumbing professional.
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,
combustible, or corrosive vapors and liquids in the
vicinity of this or any other appliance.
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TABLE OF CONTENTS
page
GENERAL INFORMATION........................................................... 3
INSTALLATION
Locating The Water Heater................................................... 5
Minimum Clearances............................................................. 8
Venting................................................................................... 9
Combustion Air Supply......................................................... 10
Water Connections................................................................ 12
Gas Connections................................................................... 15
GENERAL OPERATION............................................................... 16
Lighting and Shutdown Instructions.................................... 17
Thermostat Adjustment ........................................................ 18
Burner Flame Check ............................................................. 19
MAINTENANCE ............................................................................ 20
PARTS LIST................................................................................. 24
PARTS LIST DRAWING............................................................... 24
INSTALLATION INSTRUCTIONS FOR POTABLE WATER AND
SPACE HEATING......................................................................... 25
NOTES ......................................................................................... 26

3
GENERAL INFORMATION
This gas-fired water heater is design certified by CSA International under the
applicable American National Standard, Z21.10.1 or Z21.10.3-(as indicated
on the rating plate), or CSA 4.1-(as indicated on the rating plate), available
from CSA International, 8501 East Pleasant Valley Road, Cleveland, OH
U.S.A. 44131-5575.
This water heater must be installed in accordance with local codes. In the
absence of local codes, it must be installed in compliance with the National
Fuel Gas Code (ANSI Z223.1-Latest Edition), or in Canada CAN/CGA B149.1
Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2 Propane
Installation Code (Latest Edition). The warranty for this water heater is in
effect only when the water heater is installed, adjusted, and operated in
accordance with these Installation and Operating Instructions. The
manufacturer will not be liable for any damage resulting from alteration and/or
failure to comply with these instructions.
This water heater is not design certified for installation in a mobile home.
Such an installation may create a hazardous condition and will nullify the
warranty.
This water heater has been designed and certified for the purpose of heating
potable water. The installation and use of this water heater for any purpose
other than the heating of potable water may cause damage to the water
heater, create a hazardous condition, and nullify the warranty.
Do not use this appliance if any part has been submerged in water.
Immediately call a qualified service technician to inspect the appliance and to
replace any part of the control system and any gas control which has been
under water. Depending upon the individual circumstances, it may be
necessary to replace the entire water heater.
Do not store or use gasoline or other flammable, combustible, or
corrosive vapors and liquids in the vicinity of this or any other
appliance.
CAUTION
Incorrect operation of this appliance may create a hazard to life and
property and will nullify the warranty.
DANGER
4
General Information continued-
This water heater has been manufactured for operation at altitudes from sea
level to 2000 feet (610m). For use of this appliance at an elevation greater
than 2000 feet (610m), contact the dealer or manufacturer listed on the rating
plate for information on any necessary modification. Uncorrected operation
of this appliance may create a hazard to life and property.
Make sure that you check the rating plate and combination gas control on the
water heater to be certain that the type of gas being supplied corresponds
with the marking on the rating plate and combination gas control.
A sacrificial anode is used to extend tank life. The removal of this anode, for
any reason, will nullify the warranty. In areas where water is unusually active,
an odor may occur at the hot water faucet due to a reaction between the
sacrificial anode and the impurities in the water. If this should happen, an
alternative anode may be purchased from the supplier that installed this water
heater. This will minimize the odor while protecting the tank. Additionally, the
water heater should be flushed with appropriate dissolvers to eliminate any
bacteria.
IMPORTANT
Before proceeding, please inspect the water heater and components for
possible damage. DO NOT install any damaged components. If damage
is evident then please contact the supplier where the water heater was
purchased or the manufacturer listed on the rating plate for replacement
parts.

5
INSTALLATION
LOCATING THE WATER HEATER
This water heater MUST NOT be installed in any location where
gasoline or flammable vapors are likely to be present, unless the
installation is such to eliminate the probable ignition of gasoline or
flammable vapors.
Water heaters in residential garages shall be installed so that all
burner(s) and burner ignition device(s) are located not less than 18
inches
(45.7 cm)
above the floor and be located, or protected, to avoid
physical damage. For other installations refer to local codes. In the
absence of local codes, the water heater shall be installed in
compliance with the National Fuel Gas Code, (ANSI Z223.1- Latest
Edition), or in Canada CAN/CGA B149.1 Natural Gas Installation Code
(Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest
Edition).
The location of this water heater is of the utmost importance. Before installing
this water heater, you should read the Installation section of these
instructions. After reading these Installation and Operating Instructions, select
a location for the water heater where the floor is level and is easily accessible
to gas and water supply lines. DO NOT locate the water heater where water
lines could be subjected to freezing temperatures. Make sure the cold
water pipes are not located directly above the gas control so that
condensate during humid weather does not drip on the controls.
WARNING
Water heaters are heat producing appliances. To avoid damage or injury
there shall be no materials stored against the water heater or vent-air
intake system and proper care shall be taken to avoid unnecessary contact
(especially by children) with the water heater and vent-air intake
components. UNDER NO CIRCUMSTANCES SHALL FLAMMABLE
MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE USED OR
STORED IN THE VICINITY OF THIS WATER HEATER, VENT-AIR
INTAKE SYSTEM OR IN ANY LOCATION FROM WHICH FUMES
COULD REACH THE WATER HEATER OR VENT-AIR INTAKE
SYSTEM.
6
Installation (Locating The Water Heater) continued
-
Water heater corrosion and component failure can be caused by the heating
and breakdown of airborne chemical vapors. Examples of some typical
compounds that are potentially corrosive are: spray can propellants, cleaning
solvents, refrigerator and air conditioning refrigerants, swimming pool
chemicals, calcium and sodium chloride, waxes and process chemicals.
These materials are corrosive at very low concentration levels with little or no
odor to reveal their presence. NOTE: DAMAGE TO THE WATER HEATER
CAUSED BY EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED
BY THE WARRANTY. DO NOT OPERATE THE WATER HEATER IF
EXPOSURE HAS OR WILL OCCUR. DO NOT STORE ANY
POTENTIALLY CORROSIVE COMPOUNDS IN THE VICINITY OF THE
WATER HEATER.
WARNING
Liquefied petroleum gases/propane gas are heavier than air and will
remain at floor level if there is a leak. Basements, crawl spaces, closets
and areas below ground level will serve as pockets for accumulation of
leaking gas. Before lighting, smell all around the appliance area for gas.
Be sure to smell next to the floor.
IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any telephone in your
building.
• Immediately call your gas supplier from a neighbor’s telephone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!

7
Installation (Locating The Water Heater) continued-
Proper venting practices must be considered when selecting a location for
this water heater. For exact venting specifications, please consult the
Venting section, located on page 9, of these Installation and Operating
Instructions.
This water heater must be located in an area where leakage of the tank, water
line connections, or the combination temperature and pressure relief valve
will not result in damage to the area adjacent to the water heater or to lower
floors of the structure. When such locations cannot be avoided, a suitable
drain pan must be installed under the water heater. The drain pan must be no
greater than 1-½inches
(3.8 cm)
deep and have a minimum length and width
of at least four (4) inches
(10.2 cm)
measured from the jacket of the water
heater. The drain pan, as described above, can be purchased from your
plumbing professional. The drain pan must be piped to an adequate drain.
The piping must be at least 3/4 inch
(1.9 cm)
in diameter and pitched for
proper drainage.
It is recommended that a minimum clearance of four (4) inches
(10.2 cm)
be
provided on the side of the water heater for servicing and maintenance of the
combination temperature and pressure relief valve.
WARNING
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE
NOT CERTAIN OF THE FOLLOWING:
• Liquefied petroleum gases/propane gas and natural gas have an
odorant added by the gas supplier that aids in detection of the gas.
• Most people recognize this odor as a “sulfur”or “rotten egg”smell.
• Other conditions, such as “odorant fade”can cause the odorant to
diminish in intensity, or “fade”, and not be as readily detectable.
• If you have a diminished sense of smell, or are in any way unsure of
the presence of gas, immediately contact your gas supplier from a
neighbor’s telephone.
• Gas detectors are available. Contact your gas supplier or plumbing
professional for more information.
8
Installation (continued)-
MINIMUM CLEARANCES
WARNING
Failure to adhere to these installation and operating instructions
may create a hazard to life and property and will nullify the warranty.
This installation shall allow access to the front of the water heater and
adequate clearance shall be provided for servicing and operating this water
heater. The water heater may be installed on either a combustible or non-
combustible floor. If the water heater is to be installed directly on carpeting, it
shall be installed on top of a metal or wood panel (or equivalent) extending
beyond the full width and depth of the appliance by at least three (3) inches
(7.6 cm)
in any direction or, if the appliance is to be installed in an alcove or
closet, the entire floor shall be covered by the panel. If the rating plate or
the label on the front of the heater specifies minimum clearances less
than those listed in the below table, the water heater may be installed in
accordance with the minimum clearances listed on the rating plate or
the label on the front of the heater.
If it is necessary to install this water heater in an alcove, use the clearances
listed in the following table and Figure 1.
Minimum Clearances From
Combustible Materials
For Alcove Installation
A6” (15.2cm)
B6” (15.2cm)
C26” (66cm)
VENT 6” (15.2 cm)
Figure 1

9
Installation (continued)-
VENTING
Place the draft diverter over the flue opening at the top of the water heater by
inserting the tips of the draft diverter legs into the four (4) holes provided in
the water heater top. On some models, line up the holes in the draft diverter
legs with the holes provided on top of the water heater. Secure the draft
diverter to the water heater with sheet metal screw. (See Figure 5)
Vent piping must be attached to the draft diverter outlet to connect the water
heater to the gas vent or chimney. The following minimum clearances must
be followed when connecting vent piping:
a) The vent connector must be the same nominal size as the draft
diverter.
b) The vent connector should not exceed 15 feet
(4.5m)
in length (for
power vent appliances, refer to supplemental instructions), must not
project into the chimney beyond the inner wall and should contain the
least possible number of bends.
c) All horizontal runs should have a minimum rise of ¼inch per foot
(2.1cm/m)
.
d) Joints of vent connectors shall be securely fastened by sheet metal
screws or other approved methods.
e) All single wall vent connectors must be at least 6”
(15cm)
from
combustible surfaces.
f) Vent connectors made of single-wall metal pipe shall not pass
through any attic, inside wall, concealed space, or any floor. When a
single-wall metal pipe passes through an exterior wall constructed of
combustible material, it shall be guarded at the point of passage by a
ventilated metal thimble at least 4”
(10cm)
larger in diameter than
the connector. (Consult National Fuel Gas Code, ANSI Z223.1and/or
CAN/CGA B149, Installation Codes).
A separate vent for each application is strongly recommended. If combined
venting of multiple appliances is necessary or if an unusual situation arises,
consult the National Fuel Gas Code, ANSI Z223.1and/or CAN/CGA B149,
Installation Codes, for sizing and installation information.
WARNING
The vent system must be installed properly. Failure to properly install the
vent system could result in property damage, personal injury, or death.
10
Combustion Air Supply
Provide adequate air for combustion and ventilation. An insufficient supply of
air will cause recirculation of combustion products resulting in air
contamination that may be hazardous to life. Such a condition often will
result in a yellow, luminous burner flame, causing carboning or sooting of the
combustion chamber, burners and flue tubes with possible damage to the
water heater.
When an exhaust fan is installed in the same room with a heater, sufficient
openings for air must be provided in the walls. Undersized openings will
cause air to be drawn into the room through the chimney, causing
recirculation of combustion products.
Confined Spaces
Confined spaces are spaces defined as having less than 50 ft.3/1000 BTU
(15m3/.29kw)
per hour.
Unconfined Spaces
In unconfined spaces in buildings, infiltration may be adequate to provide air
for combustion, ventilation and dilution of flue gases. However, in buildings
of tight construction (for example, weather stripping, heavily insulated,
caulked, vapor barrier, etc.), additional air may need to be provided using the
methods described above under CONFINED SPACES: All Air From
Outdoors or SPECIALLY ENGINEERED INSTALLATIONS.
Installation (Combustion Air Supply) continued-
WARNING
Liquefied petroleum gases/propane gas are heavier than air and will
remain at floor level if there is a leak. Basements, crawl spaces, closets
and areas below ground level will serve as pockets for accumulation of
leaking gas. Before lighting, smell all around the appliance area for gas.
Be sure to smell next to the floor.
IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any telephone in your
building.
• Immediately call your gas supplier from a neighbor’s telephone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!
IMPORTANT
The flow of combustion and ventilating air must not be obstructed.

11
All Air From Inside the Building: The confined space shall be provided
with two permanent openings communicating directly with an additional
room(s) of sufficient volume so that the combined volume of all spaces meets
the criteria for an unconfined space. The total input of all gas
utilization equipment installed in the combined space shall be considered in
making this determination. Each opening shall have a minimum free area of
1 square inch per 1000 BTU
(2.54cm2/.29kw)
per hour of the total input rating
of all gas utilization equipment in the confined space, but not less than 100
square inches
(254cm2)
. One opening shall be within 12 inches
(31cm)
of the
top and one within 12 inches
(31cm)
of the bottom of the enclosure.
All Air From Outdoors: The confined space shall be provided with two
permanent openings, one commencing within 12 inches
(31cm)
of the top and
one commencing within 12 inches
(31cm)
from the bottom of the enclosure.
The openings shall communicate directly, or by ducts, with the outdoors or
spaces (crawl or attic) that freely communicate with the outdoors.
1. When directly communicating with the outdoors, each opening shall have
a minimum free area of 1 square inch per 4000 BTU
(2.54cm2/1.2kw)
per
hour of total input rating of all equipment in the enclosure.
2. When communicating with the outdoors through vertical ducts, each
opening shall have a minimum free area of 1 square inch per 4000 BTU
(2.54cm2/1.2kw)
per hour of total input rating of all equipment in the
enclosure.
3. When communicating with the outdoors through horizontal ducts, each
opening shall have a minimum free area of 1 square inch per 2000 BTU
(2.54cm2/.6kw)
per hour of total input rating of all equipment in the
enclosure.
4. When ducts are used, they shall be of the same cross-sectional area as
the free area of the openings to which they connect. The minimum
dimension of rectangular air ducts shall be not less than 3 inches
(7.5cm)
Specially Engineered Installations
The requirements noted under CONFINED SPACES above shall not
necessarily govern when special engineering, approved by the authority
having jurisdiction, provides an adequate supply of air for combustion,
ventilation, and dilution of flue gases.
12
WATER CONNECTIONS
Note: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE
MAIN WATER SUPPLY VALVE.
After shutting off the main water supply, open a faucet to relieve the water
line pressure to prevent any water from leaking out of the pipes while making
the water connections to the water heater. After the pressure has been
relieved, close the faucet. The COLD water inlet and HOT water outlet are
identified on the top of the water heater. The fittings at the cold water inlet
and hot water outlet are dielectric waterway fittings with 3/4”NPT male
thread. Make the proper plumbing connections between the water heater and
the plumbing system to the house. Install a shut-off valve in the cold water
supply line.
If this water heater is installed in a closed water supply system, such as the
one having a back-flow preventer in the cold water supply, provisions shall be
made to control thermal expansion. DO NOT operate this water heater in a
closed system without provisions for controlling thermal expansion. Your
water supplier or local plumbing inspector should be contacted on how to
control this situation
After installation of the water lines, open the main water supply valve and fill
the water heater. While the water heater is filling, open several hot water
faucets to allow air to escape from the water system. When a steady stream
of water flows through the faucets, close them and check all water
connections for possible leaks. NEVER OPERATE THE WATER HEATER
WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER.
WARNING
FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4”X 3/4”
TEMPERATURE AND PRESSURE RELIEF VALVE WILL RELEASE THE
MANUFACTURER FROM ANY CLAIM WHICH MIGHT RESULT FROM
EXCESSIVE TEMPERATURE AND PRESSURES.
CAUTION
If sweat fittings are to be use, DO NOT apply heat to the nipples on top of
the water heater. Sweat the tubing to the adapter before fitting the adapter
to the water connections. It is imperative that heat is not applied to the
nipples containing a plastic liner.

13
WARNING
For protection against excessive temperatures and pressure, install
temperature and pressure protective equipment required by local codes,
but not less than a combination temperature and pressure relief valve
certified by a nationally recognized testing laboratory that maintains
periodic inspection of production of listed equipment or materials as
meeting the requirements of the Standard for
Relief Valves and Automatic
Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22 or the
Standard CAN1-4.4. Temperature and Pressure
and the Standard
CAN1-
4.4, Temperature, Pressure, Temperature and Pressure Relief Valves and
Vacuum Relief Valves
. The combination temperature and pressure relief
valve shall be marked with a maximum set pressure not to exceed the
maximum working pressure of the water heater. The combination
temperature and pressure relief valve shall also have an hourly rated
temperature steam BTU discharge capacity not less than the hourly rating
of the water heater.
Install the combination temperature and pressure relief valve into the
opening provided and marked for this purpose on the water heater.
Note: Some models may already be equipped or supplied with a
combination temperature and pressure relief valve. Verify that the
combination temperature and pressure relief valve complies with local
codes. If the combination temperature and pressure relief valve does not
comply with local codes, replace it with one that does. Follow the
installation instructions above on this page.
Install a discharge line so that water discharged from the combination
temperature and pressure relief valve will exit within six (6) inches
(15.2
cm)
above, or any distance below the structural floor and cannot contact
any live electrical part. The discharge line is to be installed to allow for
complete drainage of both the combination temperature and pressure
relief valve and the discharge line. The discharge opening must not be
subjected to blockage or freezing. DO NOT thread, plug or cap the
discharge line. It is recommended that a minimum clearance of four (4)
inches
(10.2 cm)
be provided on the side of the water heater for servicing
and maintenance of the combination temperature and pressure relief
valve.
Do not place a valve between the combination temperature and pressure
relief valve and the tank.
14
Installation (Water Connections) continued-
This water heater can deliver scalding temperature water at any faucet in the
system. Be careful whenever using hot water to avoid scalding injury.
Certain appliances such as dishwashers and automatic clothes washers may
require increased temperature water. By setting the thermostat on this water
heater to obtain the increased temperature water required by these
appliances, the potential for scald injury increases. To protect against injury,
an anti-scald tempering valve should be installed in the water system. This
valve will reduce point of discharge temperature by mixing cold and hot water
in branch supply lines. Such valves are available from the manufacturer of
this water heater or a local plumbing supplier. Please consult with a plumbing
professional.
WARNING
Hydrogen gas can be produced in an operating water heater that has
not had water drawn from the tank for a long period of time (generally
two weeks or more). Hydrogen gas is extremely flammable. To
prevent the possibility of injury under these conditions, we
recommend the hot water faucet to be open for several minutes at the
kitchen sink before you use any electrical appliance which is
connected to the hot water system. If hydrogen is present, there will
be an unusual sound such as air escaping through the pipes as hot
water begins to flow. Do not smoke or have open flame near the
faucet at the time it is open.

15
GAS CONNECTIONS
The gas supply lines must meet all requirements of the National Fuel Gas
Code ANSI Z223.1-(Latest Edition) and/or in Canada CAN/CGA B149
Installation Codes - (Latest Editions).
The minimum permissible gas supply pressure for the purpose of input
adjustment is 1.0”water column
(.25kPa)
above the operating manifold
pressure. See the rating plate and combination gas control for the manifold
pressure and gas type. The maximum permissible gas supply pressure is
14.0”water column
(3.5kPa)
for natural gas and liquefied petroleum
gases/propane gas.
1. Connect this water heater only to the type of gas (Natural or Propane gas)
as shown on the rating plate. Use clean 1/2 inch black iron pipe. (Dirt and
scale from the pipe can enter the combination control and cause it to
malfunction). The inlet gas line must have a minimum length of 3”
(7.6
cm)
drip leg
(sediment trap)
installed as close to the water heater’s
combination gas control as possible. A ground joint union must be
installed in the gas supply line feeding the water heater to permit
servicing of the water heater. Compounds used on the threaded joints of
the gas piping must be resistant to the action of liquefied petroleum
gases/propane gas.
2. This water heater and its gas connection must be leak tested before
placing the water heater in operation. Check for gas leaks with a soap
16
and water solution and a brush or a commercial leak detector fluid.
NEVER USE A MATCH OR OPEN FLAME FOR TESTING!
CAUTION
The water heater and individual shutoff valve must be disconnected from
the gas supply piping system during any pressure testing of the system at
test pressures in excess of 1/2 psi
(3.5 kPa)
. The water heater must be
isolated from the gas supply piping system by closing its manual shutoff
valve during any pressure testing of the gas supply system at test
pressures equal to or less than 1/2 psi
(3.5 kPa)
. The supply line must be
capped when not connected to the water heater.

17
GENERAL OPERATION
TO FILL THE WATER HEATER
1. Close the water heater drain valve by turning the knob clockwise .
2. Open the cold water supply shut-off valve.
3. Open several hot water faucets to allow air to escape from the system.
4. When a steady stream of water flows from the faucets, the water heater is
filled. Close the faucets and check for water leaks at the water heater
drain valve, combination temperature and pressure relief valve and the
hot and cold water connections.
TO DRAIN THE WATER HEATER
Should it become necessary to completely drain the water heater, make sure
you follow the steps below:
1. Rotate the thermostat dial counter-clockwise
to the lowest possible
position.
2. Rotate gas control knob clockwise
to the “OFF”position.
3. Shut off the gas supply to the water heater.
4. Close the cold water supply shut-off valve.
5. Open the drain valve on the water heater by turning the knob counter-
clockwise
. The drain valve has threads on the end that will allow
the connection of a standard hose coupling.
6. Open a hot water faucet to allow air to enter the system.
To refill the water heater, refer to “To Fill the Water Heater.”
WARNING
Water heaters are heat producing appliances. To avoid damage or injury
there shall be no materials stored against the water heater or vent-air
intake system, and proper care shall be taken to avoid unnecessary contact
(especially by children) with the water heater and vent-air intake system.
UNDER NO CIRCUMSTANCES SHALL FLAMMABLE MATERIALS,
SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN
THE VICINITY OF THIS WATER HEATER, VENT-AIR INTAKE SYSTEM
OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE
WATER HEATER OR VENT-AIR INTAKE SYSTEM.
18
General Operation (continued)-

19
THERMOSTAT ADJUSTMENT
The thermostat dial is set to its lowest temperature setting when shipped from
the factory. Remember that lower temperature settings are more energy
efficient. Adjust the temperature by turning the thermostat dial. It is
suggested that the starting point setting not be greater than the ““mark on
the thermostat dial (approximately 120°F
[49°C]
) as indicated below. Rotate
the thermostat dial clockwise
to increase the temperature setting.
Rotate the thermostat dial counter-clockwise
to decrease the
temperature setting. Adjust the thermostat dial until the minimum acceptable
temperature is achieved (See figure below for approximate temperature
settings).
Figure 2
Hotter water increases the risk of scald injury. Scalding may occur within
five (5) seconds at a temperature setting of 135°F
(57°C)
. To protect
against hot water injury, install an anti-scald tempering valve in the water
system. This valve will reduce point of discharge temperature by mixing
cold and hot water in branch water lines. A licensed plumbing
professional or local plumbing authority should be consulted.
Note: This water heater is equipped with an energy cut out device to
prevent overheating. Should overheating occur or the gas supply fail to
shut off, turn off the manual gas control valve to the appliance and call a
qualified service technician.
Note: Whenever the water heater is filled with cold water, condensate
will form on the cool tank surface and drops of water will fall on the hot
burner and combustion chamber surfaces producing a “sizzling”noise.
Condensation is normal and does not indicate a leak. It will disappear
when the tank becomes heated.
DANGER
20
General Operation (continued)-
BURNER FLAME CHECKS
Cast Iron Burner: At the time of installation and at periodic intervals (not
more than 6 months), a visual check of the main burner and pilot flames
should be made to determine if they are burning properly. For ideal
operation, the gas and air must be properly proportioned. The proper air-gas
mixture is obtained by adjusting the air shutter on the mixer face of the main
burner
(See Figure 4).
To adjust for proper burning, loosen the air shutter
nut, rotate shutter to close the opening in the burner then slowly rotate the
shutter until the yellow tips disappear and the flame becomes blue. Tighten
the air shutter nut. Too much air will cause the flame to lift off the burner
ports and create noisy operation. Too little air will result in soot formation.
The main burner flame should light smoothly from the pilot.
Steel Burner: These models are equipped with self adjusting air mixture and
do not have an adjustable air shutter (
See Figure
3). At periodic intervals, a
visual check of the main burner and pilot flames should be made to
determine if they are burning properly. The main burner flame should light
smoothly from the pilot.
Figure 3
Figure 4