Bradford White 30S User manual

238-42458-00E REV 05/07
THE WARRANTY ON THIS WATER HEATER IS IN EFFECT ONLY WHEN
THE WATER HEATER IS INSTALLED AND OPERATED IN ACCORDANCE
WITH LOCAL CODES AND THESE INSTRUCTIONS. THE
MANUFACTURER OF THIS HEATER WILL NOT BE LIABLE FOR ANY
DAMAGE RESULTING FROM FAILURE TO COMPLY WITH THESE
INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE
STARTING.
For your family’s comfort, safety and convenience, we
recommend this water heater be installed and serviced by a
plumbing professional.
OIL-FIRED WATER HEATER
A Spanish language version of these instructions is available by contacting
the manufacturer listed on the rating plate.
La version Espanola de estas instrucctions se puede obtener al escribirle a
la fábrica cuyo nombre aparece in la placa de especificaciones.
INSTALLATION & OPERATING
INSTRUCTION MANUAL

2
CONGRATULATIONS!
You have just purchased one of the finest water heaters on the
market today!
This installation, operation and instruction manual will explain in
detail the installation and maintenance of your new Oil-Fired Water
Heater. We strongly recommend that you contact a plumbing
professional for the installation of this water heater.
We require that you carefully read this manual, as well as the
enclosed warranty, and refer to it when questions arise. If you have
any specific questions concerning your warranty, please consult the
plumbing professional from whom your water heater was
purchased. For your records we recommend that you write the
model, serial number and installation date of your water heater in the
maintenance section in the back of this manual.
This manual should be kept with the water heater.
TABLE OF CONTENTS
General Information.................................................................................. 3
Installation ................................................................................................. 3
Locating the water heater.................................................................. 3
Minimum clearances .......................................................................... 4
Combustion air supply....................................................................... 5
Electrical connections........................................................................ 5
Venting................................................................................................. 6
Water connections.............................................................................. 6
Installation for potable water and space heating .................................. 8
Oil tanks and piping.................................................................................. 9
Operation ...................................................................................................11
Burner and thermostat information ........................................................11
Maintenance...............................................................................................16
Notes ..........................................................................................................18

3
General Information
Note: It is recommended that the installation and service of this water heater be
performed by a plumbing professional.
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 Fire
Protection Standard For Oil Burning Equipment NFPA No. 31 (latest edition). In
Canada the installation of this water heater shall be in accordance with the
regulation of authorities having jurisdiction and CSA STANDARD B139.
The warranty of this water heater is in effect only when the water heater is
installed, adjusted, and operated in accordance with these installation and
operating instructions.
DO NOT use this appliance if any part has been submerged in water. You should
contact the plumbing professional who installed the water heater to inspect the
appliance and to replace any part of the control system and any component which
has been submerged in water.
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 reactive, 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 sold you 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.
INSTALLATION
Locating the water heater
The location of this water heater is of the utmost importance. Before installing the
water heater, you should select a location where the floor is level and is easily
accessible to water supply lines as well as to a chimney or vent. DO NOT locate
the water heater where water lines could be subjected to freezing temperatures.
This water heater MUST be installed indoors out of the wind and weather.
To comply with NSF requirements this water heater is to be:
a) Sealed to the floor with sealant, in a smooth and easily cleanable way, or
b) Installed with an optional leg kit that includes legs and/or extensions that
provide a minimum clearance of 6” beneath the water heater.
Note: For California installation this water heater must be braced, anchored,
or strapped to avoid falling or moving during an earthquake. See
instructions for correct installation procedures. Instructions may be
obtained from California Office of the State Architect, 400 P Street,
Sacramento, CA 95814.

4
Minimum Clearances
This water heater shall be installed on NON-COMBUSTIBLE flooring only. This water
heater may be installed in an alcove. Refer to the marking on the front of the water
heater for clearances to combustible materials.
The installation should allow access to the front of the water heater and adequate
clearance should be provided for servicing and operating the water heater. It is
recommended that a minimum clearance of 3” be provided on the side of the water
heater for servicing and maintenance of the temperature and pressure relief valve.
This water heater must be located in an area where leakage of the tank or water line
connections 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 drip
pan must be installed under the water heater. The drain pan must have a minimum
length and width of at least 4 in. (10.2 cm) greater than the diameter of the water
heater and must not restrict proper combustion air flow to the water heater. The drain
pan, as described above, can be purchased from your plumbing professional. The
piping must be at least ¾” in diameter and pitched for proper drainage. The pan must
not restrict the combustion airflow.
WARNING
Water heaters are heat-producing appliances. To avoid damage or injury,
there shall be no materials stored against the water heater. Proper care shall
be taken to avoid unnecessary contact (especially by children) with the water
heater. UNDER NO CIRCUMSTANCES SHALL FLAMMABLE MATERIALS,
SUCH AS GASOLINE OR PAINT THINNER, BE USED OR STORED IN THE
VICINITY OF THIS WATER HEATER OR IN ANY LOCATION FROM WHICH
FUMES COULD REACH THE WATER HEATER.
Note: The failure to adhere to these instructions may create a hazard to life
and property and will nullify the warranty.
Water heater corrosion and component failure can be caused by heating and
breakdown of airborne chemical vapors. Examples of typical compounds that
are potentially corrosive are: spray can propellants, cleaning solvents,
refrigeration 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 WARRANTY.
IMPORTANT!!
THE FLOW OF COMBUSTION AND VENTILATING AIR MUST NOT
BE OBSTRUCTED!!

5
Combustion Air Supply
Installation of this water heater requires that provisions be made to supply
adequate air for combustion and ventilation. If the building is unusually tight
or if this water heater is installed in a small room, provisions for additional
makeup air must be provided. This air must be supplied through two
permanent openings located so that the lower edge of the lower opening is 6
inches below the top of the enclosure.
The minimum free air area for such openings shall not be less than one
square inch per 1000 BTU/HR of the total input rating of all appliances in that
enclosure of 100 square inches, whichever is greater. For outside air, in the
absence of local codes, refer to the National Fire Protection Standard For Oil
Burning Equipment NFPA No. 31 (latest edition).
Electrical Connections
This water heater is normally wired for 120 volts and shall be electrically
grounded in accordance with local codes, or in the absence of local codes,
with the National Electrical Code, ANSI/NFPA No. 70 (latest Edition).
If any of the original wiring must be replaced, replacement shall be with 105
degree C wire or equivalent.
Figure 1

6
Venting
The connection from the water heater vent to the stack must be made as
direct as possible and of the same diameter as the vent outlet. The
recommended slope of any horizontal breaching is at least 1/2" rise per
linear foot. A barometrically operated draft regulator (barometric damper)
shall be installed in the vent connector at a location just above the water
heater.
Caution: The stack must extend at least three feet above the highest point of
the roof to insure proper venting. The stack should be provided with a weather
cap of approved design.
Note: Provisions shall be made to prevent contact of the vent pipe with
combustible materials in accordance with all codes and regulations.
A separate vent for each appliance is strongly recommended. A separate
vent is required for installation and application of multiple power vent(s). If
combined venting of multiple appliances is necessary or if an unusual
situation arises consult the National Fire Protection Standard For Oil Burning
Equipment NFPA NO.31 (latest edition), for sizing and installation information.
Water Connections
NOTE: Before proceeding with the installation, close the main water supply
valve. After shutting off the main water supply, open and close the appropriate
faucets and valves to prevent any water from leaking out of the pipes while
making the water connections to the water heater. 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 fittings with a 3/4 NPT
male thread. Make the proper plumbing connections between the water
heater and the plumbing system of the house. A shut-off valve should be
installed in the cold water supply line.
If sweat fittings are to be used, Do Not apply heat to the nipples on top of the
water heater. Sweat the tubing to the adapter before fitting the adapter to
water connections. It is imperative that no heat be applied to nipples
containing a plastic liner. Heat traps may have been provided in the inlet and
outlet nipples. Although they may appear to be plastic plugs, Do Not attempt
to remove the plastic insert.
If this water heater is installed in a closed water system, such as one having
a back-flow preventer in the cold water supply, provisions shall be made to
control thermal expansion. Your water supplier or local plumbing inspector
should be contacted on how to control this situation.

7
Water Connections Continued-
After the installation of all the water lines, open the main water supply valve
and fill the water heater. Open several hot water faucets to allow air to escape
from the system while the water heater is filling. When a steady stream of
water passes through the faucets, close them and check all connections for
possible leaks in the system.
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 TEMPERATURES AND PRESSURES.
Never operate the water heater without first being certain it is filled with
water.
This water heater can deliver scalding water temperatures at any faucet in the
system. Be careful whenever using hot water to avoid scalding injury. Certain
appliances require increased water temperatures (such as dishwashers and
automatic clothes washers). By setting this water heater to a higher water
temperature setting, you may create the potential for a scalding injury. To
protect against injury, install an anti-scalding tempering valve in the water
system. This valve will reduce point of discharge temperature by mixing cold
and hot water in branch water lines. Such valves are available from the local
plumbing supplier. Please consult the plumbing professional who installed the
water heater concerning this matter.
WARNING
For protection against excessive temperature and pressure, install
temperature and pressure protective equipment required by local codes, but
no less than a combination temperature and pressure relief valve certified as
meeting the requirements for Relief Valves and Automatic Gas Shut-off
Devices for Hot Water Supply Systems, ANSIZ21.22, by a nationally
recognized testing laboratory that maintains periodic inspection of production
of listed equipment or materials. The 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 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 temperature and pressure relief valve into the opening provided
and marked for this purpose on the water heater. Install a drainpipe in the
opening of the temperature and pressure relief valve so that any discharge
from the valve will exit within 6 inches above, or at any distance below the
structural floor and cannot contact any live electrical part. The end of the
relief valve drainpipe opening should terminate near the floor drain or other
suitable location. Do not subject the discharge opening to blocking or
freezing or reduce its size under any circumstances. It is recommended that
a minimum clearance of 3" be provided on the side of the water heater for
servicing and maintenance of the temperature and pressure relief valve.

8
THE FOLLOWING INSTRUCTIONS ARE FOR INSTALLATION OF:
GAS WATER HEATERS SUITABLE FOR WATER (POTABLE)
HEATING AND SPACE HEATING
1. All piping components connected to this water heater for space heating
applications must be suitable for use with potable water. In
Massachusetts, space heating piping length must not exceed 50 feet.
2. Toxic chemicals, such as those used for boiler treatment, must not be
introduced into potable water used for space heating.
3. This water heater must not be connected to an existing heating system
or component(s) previously used with a non-potable water heating
appliance.
4. When the system requires water for space heating at temperatures higher
than required for other means, such as an ASSE approved mixing valve
shall be installed to temper the water for those uses in order to reduce the
scald hazard potential.
Please refer to the illustration below for the suggested piping arrangement.
Figure 2
CAUTION
THE COIL PROVIDED IN THIS WATER HEATER IS MANUFACTURED USING AN
ALUMINUM ALLOY INNER WALL, CROSS-LINKED POLY- ETHYLENE OUTER WALL AND
NITRILE/HDPM “O” RING(S).
DO NOT USE COMPONENTS OR MATERIALS WHICH MAY NOT BE COMPATIBLE WITH
THESE MATERIALS. THIS MAY CAUSE PREMATURE FAILURE OF THE COIL AND/OR THE
WATER HEATER.

9
OIL TANKS AND PIPING
A. Miscellaneous Information: If suction and return lines are less than 30
feet in length, 1/2" OD tubing may be used, but never smaller; however,
when the oil line is 30 feet or over, 5/8" OD tubing is recommended.
Where basement oil storage tanks or oil storage tanks installed above
the burner are used, and/or when the oil flows by gravity to the oil pump,
a single-stage fuel unit with a single oil line to the pump may be used.
Avoid as many connections as possible in the suction line and make up
all connections as tightly as possible, using a good pipe joint compound
for oil on all pipe threads. To minimize the possibility of air leaks, tighten
packing gland on any valve installed in the suction line. Also, be sure to
tighten the cover on the oil filter, as filter gaskets often shrink. Check for
kinks in the oil lines as well as for possible air pockets and for loose
connections. Underwriters' Laboratories requirements now in effect
stipulate a bottom outlet on all 275 gallon oil storage tanks. This is to
prevent the accumulation of condensation, which causes the tank to
rust. A water trap can be installed at the oil storage tank outlet to
prevent the water from entering the burner. There are a number of
additives on the market that can be added to the oil storage tank with
the fuel oil. These additives hold the water in suspension and allow it to
pass through the burner. Consult a local fuel oil dealer for information
concerning the use of these additives.
B. Single Line System: NOT RECOMMENDED WHEN IT IS NECES-
SARY TO LIFT THE OIL. This type of installation is used where the oil
storage tank is above the burner and gravity oil feed to the burner is
permitted. The oil outlet and the line should be taken from the bottom of
the tank. This line should have a gradual slope downward of
approximately 112" per linear foot or more to a point directly below
where it is connected to the burner. A shut-off valve should be installed
in the line.
C. Two Line System: If oil storage is buried or if a suction line is long, it is
recommended that a two-stage fuel unit with a two line (suction and
return) installation be installed. For Suntec (Sunstrand) fuel units, insert
the bypass plug through the return port and turn tight. For Webster
pumps, bypass plug comes installed.
IMPORTANT!!
The instructions in this Section are general guidelines. The instructions for
the specific pump installed on the burner that you have purchased should
take precedence over the instructions given below. Read all of the
instructions provided with the burner before continuing with the installation.

10
Oil tanks and Piping Continued-
D. Suction Line: It is recommended that extra heavy wall copper tubing
be used for this line. If standard wrought iron pipe is used. It should
be scale free and not smaller than 5/8" OD. Copper tubing should be
installed to connect the pipe to the fuel unit. Where tubing is used,
one complete loop should be made in the tubing to connect the pipe
to the fuel unit. Where tubing is used, one complete loop should be
made in the tubing immediately below the fitting connecting it to the oil
pump in order to reduce transmission of noise and to prevent strain
on the burner. When the top of the oil storage tank is below the level
of the fuel unit, high points or air pockets in the suction line must be
avoided between the oil storage tank and the fuel unit, and a 5/8" OD
ball check valve should be installed to prevent the return of the oil to
the oil storage tank during the off cycle period of the burner. Do not
run suction or return line overhead as this greatly increases the
possibility of air pockets, oil leaks, siphoning and transmission of
noise. When the top of the oil storage tank is above the fuel unit and
gravity feed to the unit is not permitted, the suction line should be run
to a point above the tank where an approved anti-siphon valve and a
5/8" OD gate valve shall be installed. These valves shall be installed
inside. No ball check valve is required, but a union should be installed
between the gate valve and the strainer to facilitate the removal of the
strainer for cleaning when necessary.
E. Return Line: The return line should be the same size as a suction
line and run as directly as possible from the return opening in the fuel
unit to the oil storage tank and should extend into the oil storage tank
to the same depth as the suction line.
F. Pressure Test for Buried Oil Lines: It is important that buried oil
lines be thoroughly tested for leaks before being covered.
CAUTION
DO NOT USE GASOLINE, CRANKCASE DRAININGS,
OR ANY OIL CONTAINING GASOLINE