Bradford White 40759U Bedienungsanleitung

238-40759-00U REV 5/13

LIGHT DUTY COMMERCIAL

ELECTRIC WATER HEATER

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 safety and convenience, it is recommended that this water heater

be installed and serviced by a plumbing professional.

INSTALLATION & OPERATING

INSTRUCTION MANUAL

A Spanish language version of these instructions is available by

contacting the company listed on the rating plate.

La versión espãnola de estas instrucciones se puede obtener al

escribirle a la fábrica cuyo nombre aparece en la placa de

especificaciones.

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 Light Duty Commercial Electric 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 ..................................................................... 4

Locating the Water Heater........................................ 4

Water Connections.................................................... 5

Electrical Connections.............................................. 11

General Operation......................................................... 16

Thermostat Adjustment ............................................ 17

Maintenance................................................................... 18

GENERAL INFORMATION

This electric water heater’s design is certified by INTERTEK (ETL) and listed

in accordance with UL 174. CETL listed in accordance with Canadian

National Standard C22.2, No. 110-M90.

This water heater must be installed in accordance with local codes. In the

absence of local codes, install this water heater in accordance with the

N.E.C. Reference Book (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 held liable for damage

resulting from alteration and/or failure to comply with these instructions.

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.

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 and create a hazardous condition and nullify the warranty.

Do not use this appliance if any part has been submerged in water. The

plumbing professional responsible for the installation of this water heater

should be contacted to inspect the appliance and to replace any part of the

control system, including thermostat, which has been submerged in water.

Make sure that the rating plate on the water heater is referenced for certainty

that the correct voltage is being supplied to the water heater.

A sacrificial anode is used to extend tank life. 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 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.

CAUTION

Incorrect operation of this appliance may create a hazard to life and

property and will nullify the warranty.

Do not store or use gasoline or other flammable, combustible,

or corrosive vapors and liquids in the vicinity of this or any other

appliance.

DANGER

General Information continued-

INSTALLATION

Locating The Water Heater

This water heater MUST be installed indoors out of the wind and

weather.

This water heater shall 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.

The location this water heater is to be installed is of utmost importance.

Before installing this water heater, consult 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 a power supply and water connections. It is recommended

that the water heater be located near the center of greatest hot water usage

to prevent heat loss through the pipes. DO NOT locate the water heater

where water lines could be subjected to freezing temperatures. Locate

the water heater so that access panels and drain valves are accessible.

Some models are not equipped with a drain valve. For those models, install

a drain tee in the cold water inlet as close as practical to the water heater.

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 or sodium chloride, waxes and process chemicals.

IMPORTANT

Before proceeding, please inspect the water heater and it’s components for

possible damage. DO NOT install any damaged components. If damage is

evident, please contact the supplier where the water heater was purchased

or the manufacturer listed on the rating plate for replacement parts.

WARNING

Water heaters are heat producing appliances. To avoid damage or injury,

there shall be no materials stored against the water heater and 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 ANY

LOCATION FROM WHICH FUMES COULD REACH THE WATER

HEATER.

Locating the Water Heater continued-

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.

This water heater must be located in an area where leakage of the tank or

water line connections and 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 have a minimum length and width of at least 4 in. (10.2 cm) greater

than the diameter 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 pitched for proper drainage.

CLEARANCES

1. Minimum clearance to combustible material is 0 inches for the Top,

Sides, Front, and Rear of this water heater. However, it is

recommended that at least 18 inches (45.7 cm) from the Top, and

24 inches (61 cm) from the Front. Clearance for servicing may be

reduced down to minimum clearance to combustible material, but

service time and effort may be greatly increased.

2. Increase distances to provide clearances for servicing.

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 the DSA Headquarters Office, 1102 Q Street, Suite

5100, Sacramento, CA 95811.

Water Connections

NOTE: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE

MAIN WATER SUPPLY VALVE.

After shutting the main water supply valve, 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 top of the water heater. The fittings at the cold water inlet and

hot water outlet are dielectric waterway fittings with 3/4” NPT tapered male

threads. Make the proper plumbing connections between the water heater

and the plumbing system in the house. Install a shut-off valve in the cold

water supply line.

Water Connections continued-

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.

CAUTION

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 the water connections. It is imperative that heat is not applied

to the nipples containing a plastic liner.

IMPORTANT

FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4” X 3/4”

TEMPERATURE-PRESSURE RELIEF VALVE WILL RELEASE THE

MANUFACTURER FROM ANY CLAIM WHICH MIGHT RESULT FROM

EXCESSIVE TEMPERATURE AND PRESSURES.

WARNING

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 reduce the risk of injury under these conditions, 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

probably be an unusual sound such as air escaping through the pipe

as the water begins to flow. There should be no smoking or open

flame near the faucet at the time it is open.

Water Connections continued-

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 for Relief Valves and Automatic Gas Shutoff

Devices for Hot Water Supply Systems, ANSI Z21.22, 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 input 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

(15.3 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 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 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.

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 increased temperature water required by these

appliances, you may create the potential for scald injury. To protect against

injury, you should install an ASSE approved mixing valve 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 listed on the rating plate or from your local plumbing supplier.

Please consult with a plumbing professional.

APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS

120°F (49°C) More than 5 minutes

125°F (52°C) 1½ 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 1½ seconds

155°F (68°C) About 1 second

CAUTION

INCREASING THE THERMOSTAT SETTING ABOVE THE PRESET

TEMPERATURE MAY CAUSE SEVERE BURNS AND CONSUME

EXCESSIVE ENERGY. HOTTER WATER INCREASES THE RISK OF

SCALD INJURY.

(52°C) can cause severe burns

are at highest risk of being

Children, disabled and elderly

instantly or death from scalds.

Water temperature over 125°F

Feel water before bathing o

before setting temperature

available.

showering.

Temperature limiting valves are

Review this instruction manual

at water heater.

scalded.

Water Connections continued-

Upright Models (See Figure 1A & 1B)

The hot and cold water connections are identified on the top of the water

heater (See figure 1A). For bottom inlet models (-503 models), the cold

water inlet is located on the side of the drain valve (see figure 1B). Connect

the hot and cold water lines to the installed nipples using unions. Install a

listed temperature-pressure relief valve in the remaining fitting.

Figure 1A (Top Inlet Models)

Figure 1B (Bottom Inlet Models)

Utility Models (See Figure 2)

Utility models are supplied with inlet and outlet nipples located in a plastic

bag attached to the side of the water heater. The hot and cold water

connections are identified on the side of the water heater. Apply appropriate

amount of thread sealant to the provided nipples and install them into the

side of the tank. For 20 gallon utility models, install the supplied anode/nipple

combination at the HOT outlet location. Connect the hot and cold water lines

to the installed nipples using unions. Install a listed temperature-pressure

relief valve in the opening on the side of the water heater. Install a vacuum

relief anti-siphon device in the cold water inlet line.

Figure 2

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