Bradford White Corp Water Heater 238 37281 00R User Manual

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.  
238-37281-00R REV 05/07  
 
TABLE OF CONTENTS  
Page  
4
GENERAL INFORMATION............................................................  
INSTALLATION .............................................................................  
Locating The Water Heater....................................................  
Minimum Clearances..............................................................  
Combustion Air Supply..........................................................  
Venting ....................................................................................  
5
5
7
8
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  
3
 
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.  
4
 
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-air intake system and proper  
care must be taken to avoid unnecessary contact (especially by children) with the  
water heater and vent-air intake 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-AIR  
INTAKE SYSTEM OR IN ANY LOCATION FROM WHICH FUMES COULD  
REACH THE WATER HEATER OR VENT-AIR INTAKE SYSTEM.  
5
 
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!  
6
 
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 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 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.  
7
 
Installation continued-  
Figure 1  
Minimum Clearances From  
Combustible Materials  
A
B
C
D
0” (0cm)  
0” (0cm)  
3” (7.62cm)  
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/N 239-37025-01 for 30 gallon (113.5L) water heaters and  
239-37025-02 for 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).  
8
 
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. Apply non-hardening mastic 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).  
9
 
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-off valve 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.  
10  
 
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.  
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.  
11  
 
Water Connections continued-  
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.  
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, 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 of this water heater or a  
local plumbing supplier. Please consult with a plumbing professional.  
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12  
 
Gas Connections  
The gas supply lines must meet all requirements of 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 minimum permissible gas supply pressure for the purpose of input  
adjustment is one (1.0) inch (0.25 kPa) water column above the operating  
manifold pressure. See the rating plate and gas valve for the manifold  
pressure and gas type. The maximum permissible gas supply pressure is  
fourteen (14.0) inches (3.5 kPa) water column 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 black iron pipe or equivalent material  
approved by local codes and ordinances. (Dirt and scale from the pipe can  
enter the gas valve and cause it to malfunction). The inlet gas line must have a  
minimum length of three (3) inches (7.6 cm) drip leg (sediment trap) installed as  
close to the water heater’s gas valve as possible. A ground joint union must be  
installed as close to the water heater as possible 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. DO NOT apply pipe dope to the gas valve inlet  
and make certain that no pipe dope has become lodged in the inlet screen of  
the gas valve. Extreme care must be taken to ensure no pipe dope enters the  
gas valve. Avoid excessive torque when tightening the gas supply line to the  
gas valve. Excessive torque may result in cracking of the gas valve housing  
and could create a gas leak. When tightening gas supply line to L.P. control, it  
is recommended to hold the inlet body of the control securely with an adequate  
wrench. The suggested maximum torque is 31.5 ft. lbs. (4.4 kg-m).  
WARNING  
The manufacturer of this water heater will not be liable for any damage or injury  
caused as a result of a cracked gas inlet as a result of excessive torque.  
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 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.  
3. While checking for leaks care must be taken to prevent solution from  
contacting the electrical connections at the control. If electrical connections at the  
control become wet, they must be thoroughly dried before attempting to operate the  
water heater.  
13  
 
Gas Conversion Instructions  
Unless specifically ordered for operation on natural gas, this water heater is  
normally equipped for operation on liquefied petroleum (LP) gas but may be  
converted by following these gas conversion instructions.  
Caution: Make sure gas to be supplied to this water heater following the  
conversion matches the gas being converted to.  
CAUTION  
All gas conversions must be performed by qualified service personnel only.  
To convert from LP gas to natural gas  
(For control shown in figure 3 only)  
1. Depress and rotate gas control knob clockwise  
to the “OFF” position.  
2. Change main gas regulator by removing cap from gas regulator. Depress  
and rotate knob clockwise  
Replace cap.  
to NAT. setting using a screwdriver.  
Figure 3  
3. Change the pilot regulator by removing pilot regulator cap. Depress and  
rotate knob counterclockwise  
Replace cap.  
to the NAT. setting using a screwdriver.  
4. Remove the outer door. Remove, or slide open, the inner door.  
5. Disconnect thermocouple, gas supply tube and pilot tube from the gas valve  
and remove the burner assembly from the water heater.  
6. Remove the “RED” color coded L.P. orifice and pilot assembly and replace  
with natural gas orifice and pilot assembly provided in the cloth bag attached  
to the water heater.  
14  
 
Gas Conversion Instructions continued-  
7. Replace the burner assembly, reconnect  
all fittings and check for leaks. Refer to  
“Gas Connections”, page 13.  
8. Close and/or replace inner and outer doors.  
9. To light pilot, follow the lighting instructions  
provided on the water heater and in this installation  
and operation instruction manual.  
10. Remove “equipped for” card from cloth bag and attach to gas piping as close  
to gas control as possible. Remove and discard tag attached to water inlet  
fitting of the water heater.  
To convert from natural gas to LP gas  
(For control shown in figure 3 only)  
1. Follow the instructions above except add the “RED” main burner orifice and  
pilot assembly. Replace with the ones originally provided with the water  
heater.  
2. Change the main gas regulator to “LP” as noted in step 2 of the  
instructions.  
3. Change the pilot regulator to “LP” as noted in step 3 of the instructions.  
4. Replace “equipped for” tag with tag supplied in cloth bag for gas being  
used.  
To convert from LP gas to natural gas  
(For control shown in figure 4 only)  
1. Rotate and partially depress gas control knob clockwise  
position.  
to “OFF”  
2. Change gas regulator setting by removing cap from gas regulator. Depress  
and rotate plunger clockwise  
3. Replace cap.  
with a screwdriver releasing plunger.  
4. Remove outer door. Remove and/or slide open inner door.  
5. Disconnect thermocouple, gas supply tube, and pilot from gas valve and  
remove burner assembly from water heater.  
6. Remove “RED” color coded main burner orifice and pilot assembly and  
replace with orifice and pilot assembly provided in cloth bag attached to the  
water heater.  
Figure 4  
15  
 
Gas Conversion Instructions continued-  
7. Replace the burner assembly and reconnect all fittings and check for leaks.  
Refer to “Gas Connections”, page 13.  
8. Close and/or replace inner and outer doors.  
Note: For closed combustion product, make sure screws are tight and seal  
is made around gas supply tube to burner.  
9. To light pilot, follow the lighting instructions provided on the water heater  
and in this installation and operation instruction manual.  
10.Remove “equipped for” card from cloth bag and attach to gas piping as  
close to gas control as possible. Remove and discard tag attached to water  
inlet fitting of the water heater.  
To convert from natural gas to LP gas  
(For control shown in figure 4 only)  
1. Follow the instructions above except remove cap from gas regulator, and  
depress and rotate plunger counterclockwise  
.
2. Remove main burner orifice and pilot assembly and replace with “RED”  
color coded L.P. orifice and pilot assembly provided in cloth bag attached  
to the water heater.  
3. Replace “equipped for” tag with tag supplied in cloth bag for gas being used.  
Gas knob shown in “OFF” position  
GENERAL OPERATION  
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.  
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.  
16  
 
General Operation continued-  
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 to the lowest position.  
2. Rotate and partially depress gas control knob clockwise  
3. Shut off the gas supply to the water heater.  
4. Close the cold water supply shut-off valve.  
to the “OFF” position.  
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.”  
Lighting and Shutdown Instructions  
17  
 
Thermostat Adjustment  
Figure 5  
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 [48.9°C]) as pictured above. Rotate the  
thermostat dial clockwise  
to decrease the temperature setting. Rotate the thermostat dial  
counter-clockwise  
to increase the temperature setting. Adjust the dial until the minimum  
acceptable temperature is achieved (See figure 5 above for approximate temperature settings).  
Figure 6  
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 [48.9°C]) as pictured above. Rotate the  
thermostat dial counter-clockwise  
thermostat dial clockwise  
to decrease the temperature setting. Rotate the  
to increase the temperature setting. Adjust the dial until the  
minimum acceptable temperature is achieved (See figure 6 above for approximate temperature  
settings).  
18  
 
General Operation continued-  
DANGER  
Hotter water increases the risk of scald injury. Scalding may occur within five (5) seconds at  
a temperature setting of 140°F (60°C). To protect against hot water injury, 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 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.  
Burner Flame Check  
Steel Burner: These models are equipped with self adjusting air mixture and  
do not have an adjustable air shutter (See Figure 7). 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 7  
MAINTENANCE  
IMPORTANT  
The water heater should be inspected at a minimum annually by a qualified service  
technician for damaged components and/or joints not sealed. DO NOT operate  
this water heater if any part is found damaged or if any joint is found not sealed.  
The following maintenance should be performed by a qualified service  
technician at the minimum periodic intervals suggested below. In some  
installations, the maintenance interval may be more frequent depending on the  
amount of use and the operating conditions of the water heater. Regular  
inspection and maintenance of the water heater and vent-air intake system will  
help to insure safe and reliable operation.  
1. Annually check the operation of the thermostat.  
19  
 
Maintenance Continued-  
2. The flow of combustion and ventilation air MUST NOT be restricted. Clear  
the combustion air openings of any dirt, dust, or other restrictions.  
WARNING  
The ventilation air system may be HOT.  
3. At all times keep the water heater area clear and free from combustible  
materials, gasoline and other flammable vapors and liquids.  
4. Bi-annually conduct a visual check of the main and pilot burner flames to  
determine that they are burning properly. See Burner Flame Check section  
on page 19.  
5. Annually remove the inner door and main burner assembly to clean orifices  
and related parts of any dirt or other foreign material. Inspect the burner  
ports for obstructions or debris and clean with a wire brush as needed.  
Wire brush and/or vacuum clean the combustion chamber as needed to  
remove scale deposits and debris. NOTE: It is imperative for proper  
operation of the water heater that the inner door be replaced in the original  
location.  
WARNING  
When lifting lever of the combination temperature and pressure relief valve,  
hot water will be released under pressure. Be careful that any released water  
does not result in bodily injury or property damage.  
6. At least once a year, check the combination temperature and pressure relief  
valve to insure that the valve has not become encrusted with lime. Lift the  
lever at the lever at the top of the valve several times until the valve seats  
properly without leaking and operates freely.  
7. Monthly drain off a gallon of water to remove silt and sediment.  
WARNING! THIS WATER MAY BE HOT.  
8. If the combination temperature and pressure relief valve on the appliance  
discharges periodically, this may be due to thermal expansion in a closed  
water supply system. Contact the water supplier or local plumbing  
inspector on how to correct this situation. Do not plug the combination  
temperature and pressure relief valve outlet.  
9. A combination sacrificial anode rod/hot water outlet nipple has been  
installed to extend tank life. The anode rod should be inspected  
periodically and replaced when necessary to prolong tank life. Water  
conditions in your area will influence the time interval for inspection and  
replacement of the anode rod. Contact the plumbing professional  
20  
 
Maintenance Continued-  
10. Who installed the water heater or the manufacturer listed on the rating plate  
for anode replacement information. The use of a water softener may  
increase the speed of consumption. More frequent inspection of the anode  
is needed when using softened (or phosphate treated) water.  
The vent system must be inspected at least once a year to ensure against  
leakage of exhaust products.  
CAUTION  
FOR YOUR SAFETY. DO NOT ATTEMPT REPAIR OF COMBINATION GAS  
CONTROL, BURNERS OR GAS PIPING. REFER REPAIRS TO A QUALIFIED  
SERVICE TECHNICIAN.  
Contact your supplier or plumbing professional for replacement parts or contact  
the company at the address given on the rating plate of the water heater.  
Provide the part name, model and serial numbers of the water heater when  
ordering parts.  
READ THE WARRANTY FOR A FULL EXPLANATION OF THE LENGTH OF  
TIME THAT PARTS AND THE WATER HEATER ARE WARRANTED.  
Manufactured under one or more of the following U.S. Patents: RE.34,534;  
B1 5,341,770; 4,416,222; 4,628,184; 4,669,448; 4,672,919; 4,808,356; 4,829,983;  
4,861,968; 4,904,428; 5,000,893; 5,023,031; 5,052,346; 5,081,696; 5,092,519;  
5,115,767; 5,199,385; 5,277,171; 5,372,185; 5,485,879; 5,574,822; 5,596,952;  
5,660,165; 5,682,666; 5,761,379; 5,943,984; 5,954,492; 5,988,117; 6,142,216;  
6,684,821; 7,063,132; 6,395,280; 7,007,748;  
Other U.S. and Foreign patent applications pending. Current Canadian Patents:  
1,272,914; 1,280,043; 1,289,832; 2,045,862; 2,092,105; 2,107,012; 2,108,186;  
2,112,515  
Complete the following information and retain for future reference:  
Model No:  
Serial No :  
Service Phone  
Days:  
Nights:  
Address :  
Supplier :  
Supplier Phone No:  
21  
 
TYPICAL INSTALLATION  
22  
 
GAS FIRED MANUFACTURED HOME  
(MOBILE HOME) PARTS LIST  
PART NAME & DESCRIPTION  
1. Gas Conversion Kit  
12. Inner Door  
13. Thermostat w/ECO (Convertible-  
Nat. or L.P. Gas)  
2. Jacket Top  
3. Fiberglass Insulation  
4. Glass Lined Tank  
14. Pilot Assembly  
15. Gas Feed Line (Burner)  
16. Main Burner Orifice  
17. Burner  
18. Pilot Orifice (Not Shown)  
19. Outer Door  
20. Radiation Shield  
21. T&P Relief Valve (Optional)  
22. Jacket  
5. Tank Skirt Assembly  
6. Jacket Base Assembly  
7. Flue Baffle Assembly  
8. Cold Water Inlet Tube w/Nipple  
9. Magnesium Anode  
10. Hot Water Outlet Nipple  
11. Drain Valve  
23  
 
STEEL BURNER ASSEMBLY  
NOTE: part description, part number, model and serial number and gas type  
must be specified when ordering service parts  
ITEM NO.  
PART  
DESCRIPTION  
Pilot Assembly  
Gas Feedline  
(Main Burner)  
14  
15  
* Orifice  
(Main Burner)  
Steel Burner  
16  
17  
24  
 

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