Bradford-White 238-37281-00R User Manual

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GAS WATER HEATER

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.

MANUFACTURED HOME (MOBILE HOME) CLOSED COMBUSTION (DIRECT VENTING)

INSTALLATION AND OPERATING

INSTRUCTION MANUAL

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.

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 water heaters be installed and serviced by a plumbing professional.

238-37281-00RREV 05/07

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 Direct Vent Gas 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.

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TABLE OF CONTENTS

 

 

Page

GENERAL INFORMATION............................................................

4

INSTALLATION .............................................................................

5

Locating The Water Heater ....................................................

5

Minimum Clearances..............................................................

7

Combustion Air Supply..........................................................

8

Venting ....................................................................................

9

Water Connections.................................................................

10

Gas Connections ....................................................................

13

Gas Conversion Instructions ................................................

14

GENERAL OPERATION................................................................

16

Lighting and Shutdown Instructions ....................................

17

Thermostat Adjustment .........................................................

18

Burner Flame Check...............................................................

19

MAINTENANCE .............................................................................

19

TYPICAL INSTALLATION.............................................................

22

PARTS LIST...................................................................................

23

BURNER ASSEMBLY DRAWING.................................................

24

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GENERAL INFORMATION

This water heater must be installed in accordance with The Federal Manufactured Home Construction And Safety Standard (H.U.D. Title 24, Part 3280.707d2) or CAN/CSA Z240 MH series, mobile home. In the absence of such a standard, the water heater should be installed in accordance with the Standard For Mobile Homes (ANSI/NFPA NO. 501-B1977).

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 of the closed combustion type (direct venting) where all the combustion air is supplied from the outdoors through the air intake and all combusted gas products are vented directly to the outside by means of the roof jack. No draft diverter (vent hood) is required for this water heater.

Underwriters Laboratories, Inc. has tested a representative sample of this water heater design for its safety of operation. The UL listing of this water heater includes the field installation of the following components: roof jack, air intake tube, and heater tie down materials. These components for field installation may have been shipped with this heater and must be installed according to these instructions (see figure 1). No other components are approved for use with this 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, create a hazardous condition, and nullify the warranty.

CAUTION

Incorrect operation of this appliance may create a hazard to life and property and will nullify the warranty.

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 including the combination gas control which has been submerged in water.

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.

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General Information continued-

This water heater has been manufactured for operation at altitudes from sea level to 2000 feet (610m) (unless otherwise specified on the water heater).

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.

DANGER

Do not store or use gasoline or other flammable, combustible, or corrosive vapors and liquids in the vicinity of this or any other appliance.

Make sure to 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.

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.

The location of this water heater is of the utmost importance. Before installing this water heater, read the Installation section of these instructions. 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 must be no materials stored against the water heater or vent-airintake system and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater andvent-airintake components.UNDER NO CIRCUMSTANCES MAY

FLAMMABLE MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THIS WATER HEATER, VENT-AIRINTAKE SYSTEM OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER ORVENT-AIRINTAKE SYSTEM.

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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.

For exact venting specifications, please consult the Venting section, located on page 10, of these Installation and Operating Instructions. It is recommended that a minimum clearance of 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.

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!

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Installation (Locating The Water Heater) continued-

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

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 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 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.

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.

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 noncombustible 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 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.

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Installation continued-

Figure 1

Minimum Clearances From

Combustible Materials

A 0” (0cm)

B 0” (0cm)

C 3” (7.62cm)

D 78” (1.98mm)

VENT----

Combustion Air Supply

IMPORTANT

The flow of combustion and ventilating air must not be obstructed.

All combustion air must be supplied from outdoors by one of the following installation methods and as illustrated in Figure 2. The flow of combustion and ventilating air must not be obstructed. Adequate air must be supplied 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 heater.

AIR INTAKE INSTALLATION - 3”(7.6cm) diameter telescoping air intake and leg enclosure are required to supply fresh air to the water heater for combustion (kit P/N239-37025-01for 30 gallon(113.5L) water heaters and239-37025-02for 40 gallon(151.4L) water heaters.Note: When a mobile home is tightly skirted, an air inlet opening in the skirting must be provided. The opening shall have a minimum free area of at least 9 in2 (22.9cm2). If the opening is screened or covered with a louver, the total free area must be at least 9 in2 (22.9cm2). The following steps must be followed for proper installation of these air supply components:

(Refer to Figure 2).

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Combustion air supply continued-

1.After selecting the proper location for the water heater, cut a 4” (10.2cm) diameter hole through the floor and all other layers of flooring and sheathing directly beneath the front center of the water heater.

2.Insert the air intake into the 4” (10.2cm) diameter hole and fasten to the floor with the screws provided.

3.Adjust the air intake so the lower tube extends below the underside sheathing and secure with the screws provided. THE BOTTOM OF THE

AIR INTAKE MUST BE AT LEAST 12” (30.5cm) ABOVE THE GROUND LEVEL.

4.Seal the openings around the air intake and underside sheathing to resist the entrance of rodents.

5.Position the water heater so it is centered above the air intake. (Note:

The water heater should also be centered with the openings in the roof and ceiling to allow for correct assembly of the roof jack to the flue tube.)

The water heater is to be secured in place using the supplied sheet metal strapping and screws. Fasten the base of the water heater to the floor using the screws provided. The perforated metal strapping must be fastened to the top of the water heater and to the adjacent walls with the screws provided. (See Figure 2)

Venting

WARNING

The vent system must be installed properly. Failure to properly install the vent system could result in property damage, personal injury, or death.

Make certain the flue baffle is in place and centered in flue tube. Cut a 7 1/4 inch (18.5cm) diameter hole in the ceiling and roof directly above the flue of the water heater. Center the water heater beneath the 7 1/4(18.5cm) inch diameter holes in the roof and ceiling for proper alignment of the flue tube and roof jack vent. Applynon-hardeningmastic on the roof, around the previously cut hole, to form a weather seal with the flashing of the gas vent roof jack assembly.Note: Only the roof jacks listed in Figure 2 can be used on this water heater. Insert the 3”(7.62 cm) vent connector extension (shipped telescoped) into the gas vent roof jack assembly and down onto the flue pipe extruding from the top of the water heater. Fasten the 3”(7.62 cm) vent connector to the flue pipe using the 3”(7.62 cm) clamp provided. After all connections are made, apply a bead of silicone (supplied with vent kit) to all vent seams and connections above the flue pipe (some kits may contain silicone bands to seal vent joints).

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Installation (Venting) continued-

Figure 2

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-offvalve in the cold water supply line.

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.

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.

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