Bradford White Corp Water Heater 238 16152 00F User Manual

COMMERCIAL ELECTRIC WATER HEATER  
La version espanola de estas instrucciones se puede obtener al escribirle a la  
fábrica cuyo nombre aparece in la placa de especificaciones.  
A Spanish language version of these instructions is available by contacting the  
manufacturer listed on the rating plate.  
INSTALLATION & OPERATING  
INSTRUCTION MANUAL  
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, convenience, and best performance, we recommend  
this water heater be installed and serviced by a plumbing  
professional.  
238-16152-00F REV 12/03  
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TABLE OF CONTENTS  
General Information................................................................... 4  
Installation.................................................................................... 5  
Locating The Water Heater .................................................... 5  
Water Connections.................................................................. 8  
Electrical Connections............................................................ 14  
Amperage Chart ....................................................................... 15  
GPH Recovery Capacities...................................................... 15  
General Operation...................................................................... 16  
Thermostat Adjustment........................................................... 17  
Maintenance................................................................................ 19  
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GENERAL INFORMATION  
The design of this electric water has been listed with Underwriters’  
Laboratories, Inc. (UL) as complying with UL standard UL1453.  
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 wateheater 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.  
This water heater has been designed and listed 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 te warranty.  
CAUTION  
Incorrect operation of this appliance may create a hazard to life and  
property and will nullify the water.  
Do not use this appliance if any part has been under water. Immediately call a  
qualified service techniciato inspect the appliance and to replace any part of  
the control system and/or any gas control, which has been under water.  
Depending upon indivdual circumstances, it may be necessary to replace the  
entire water heater.  
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.  
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.  
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General Information continued-  
A sacrificial anode(s) is used to extend tank life. Removal of any 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(s) may be purchased from the supplier that installed this  
water heater.  
This will minimize the odor while protecting the tank.  
Additionally, the water heater should be flushed with appropriate dissolvers to  
eliminate any bacteria.  
IMPORTANT  
Before proceeding, please inspect the water heater and its 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.  
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INSTALLATION  
Locating The Water Heater  
WARNING  
Water heaters are heat-producing appliances. To avoid damage or injury,  
there must be no materials stored against the water heater and proper care  
must 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.  
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 ignition of gasoline or flammable vapors.  
The location for the installation of this water heater is of utmost importance.  
Before installing this water heater, consult e installation section of these  
instructions. After reading these installation and operating instructions, select  
a location for the water heater where thfloor 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 OT 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.  
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. 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.  
Locating The Water Heater continued-  
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  
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valve will not result in damage to the area adjacent to the water heater or to  
lower floors of the structure. When such locations cannot be avoided, a  
suitable drain pan must be installed under the water heater. The drain pan  
must be no greater than 1 1/2 in. (3.8 cm) deep and have a minimum length  
and width of at least 4 in. (10.2 cm) measured from the jacket of the water  
heater. The drain pan, as described above, can be purchased from your  
plumbing professional. The drain pan must be piped to an adequate drain.  
The piping must be pitched for proper drainage.  
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  
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the water connections to the water heater. After the pressure has been  
relieved, close the faucet. The cold water inlet line connects to the inlet nipple  
at the base of the water heater. The hot water outlet line connects to the  
nipple on top of the water heater. The fittings at the cold water inlet and hot  
water outlet are dielectric waterway fittings with tapered male threads. Make  
the proper plumbing connections between the water heater and the plumbing  
system in the structure. 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 applieto the  
nipples containing a plastic liner.  
IMPORTANT  
FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED TEMPERATURE-  
PRESSURE RELIEF VALVE WILL RELEASE THE MANUFACTURER  
FROM ANY CLAIM, WHICH MIGHT RESULT FROM EXCESSIVE  
TEMPERATURE AND PRESSURES.  
If this water heater is installed in a clod water supply system, such as 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 ontrolling 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. After a steady stream of  
water flows from 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.  
Water Connections continued-  
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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 must be marked with a  
maximum set pressure, not to exceed the maximum working pressure of the  
water heater. The combination temperature and pressure relief valvshall  
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 alve. Verify that the  
combination temperature and pressure reef valve complies with local codes.  
If the combination temperature and preure 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 pressurrelief 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-  
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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.  
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.  
Water Connections continued-  
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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 might  
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 of this water  
heater or a local plumbing supplier. Please consult with a plumbing  
professional.  
Water Connections continued-  
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Figure 1  
(Dual Temperature System With Mixing Valve)  
Figure 2  
(Single Installation With Storage Tank Gravity Circulation)  
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Water Connections continued-  
Figure 3  
(Dual Water Heater Installation)  
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Electrical Connections  
Before any electrical connections are made, be sure that the water heater is  
full of water and that the manual shut-off valve in the cold water supply line is  
open. If the heating elements are not completely immersed in water at all  
times, they will be damaged (burned-out) if energized for even a short period of  
time. The warranty does not cover burned-out heating elements. Check the  
rating plate and wiring diagram before proceeding. This electric water heater  
was built and wired in accordance with the Underwriters Laboratories testing  
approvals requirements. The temperature-limiting device is of the manual  
reset, trip-free type and has been factory installed to interrupt all ungrounded  
power supply conductors in the event of thermostat failure. The plumbing  
supplier in your area ordered this water heater wired at the factory to comply  
with existing area codes, but local utility codes may require or allow other  
circuitry. Consult your local power company to determine the correct electrical  
hook-up in order to meet local utility and building codes and in order to obtain  
the most economical rates. All electrical connections to elements,  
thermostats, and contactors (certain models) have been made at the factory.  
DO NOT alter any of the internal wiring. Wiring connections may loosen  
during shipment. Check all connections for tightness.  
To make the wiring connections to a powesupply, follow the steps below.  
A) Open cover door of the control box.  
B) Bring the power leads from an adequately fused disconnect switch  
(not  
furnished with the water heater due to varying state and local codes) and  
connect to the terminal block. here long runs, local  
company necessitates, an increase in size may be  
ordinances or utility  
required.  
C) This water heater musbe properly grounded. A ground lug is provided  
within the electrical control box for connection to a properly sized  
ground. (See wiring diagram for minimum required ground size. Wiring  
diagram is located on the inside door of the control box)  
D) Close cover door of the control box.  
Heating Elements  
To replace heating elements, disconnect power to the water heater, drain tank  
and replace element. To remove a heating element, use a 1 1/2” screw type  
element wrench available from most supply houses. Do not over-tighten the  
new element, as this will cause distortion in the new element gasket. Once  
the element has been replaced, follow the instructions “To Fill The Water  
Heater”. It is imperative that the water heater is full before power is restored to  
the heating elements.  
Electrical Connections continued-  
Amperage Chart  
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kW  
Input  
6
9
12  
13.5  
15  
18  
24  
27  
208V  
240V  
277V  
1Ø  
22  
32  
43  
49  
54  
65  
87  
380V  
3Ø  
9
415V  
3Ø  
8
480V  
1Ø  
29  
43  
58  
65  
72  
87  
3Ø  
17  
25  
33  
38  
42  
50  
67  
75  
1Ø  
25  
38  
50  
56  
63  
75  
3Ø  
14  
22  
29  
32  
36  
43  
58  
65  
1Ø  
12  
19  
25  
28  
31  
38  
50  
56  
63  
75  
9
3Ø  
7
14  
19  
21  
23  
28  
37  
41  
46  
55  
69  
83  
13  
17  
19  
21  
25  
34  
38  
42  
50  
63  
75  
11  
14  
16  
18  
22  
29  
32  
36  
43  
54  
65  
115  
130  
144  
173  
216  
260  
100  
113  
125  
150  
188  
225  
97  
30  
36  
45  
54  
83  
72  
87  
108  
130  
162  
195  
100  
125  
150  
108  
130  
113  
Water heaters with amperage draw of 48 AMPS or more require factory installed  
internal fusing to comply with Underwriters Laboratories requirements.  
GPH Recovery Capacities  
kW  
Input  
6
TemperaturRise  
70°F 80°F 90°F 100°F 120°F  
40°F  
62  
93  
50°F  
50  
74  
60°F  
41  
62  
140°F  
18  
27  
35  
53  
31  
47  
28  
41  
25  
37  
21  
31  
9
12  
13.5  
15  
18  
24  
27  
30  
36  
45  
54  
124  
140  
155  
186  
248  
279  
310  
372  
465  
558  
99  
83  
93  
71  
80  
89  
106  
142  
160  
177  
213  
266  
319  
62  
70  
78  
93  
124  
140  
155  
186  
233  
279  
55  
62  
69  
83  
110  
124  
138  
165  
207  
248  
50  
56  
62  
74  
41  
47  
52  
62  
83  
93  
103  
124  
155  
186  
35  
40  
44  
53  
71  
80  
89  
106  
133  
160  
112  
125  
149  
199  
223  
248  
298  
372  
447  
103  
124  
164  
186  
207  
248  
310  
372  
99  
112  
124  
149  
186  
223  
Multiply kW input by 3,412 to determine BTU input:  
Example: 54kW x 3412 = 184,248 BTU’s  
Recovery Computation Formula  
GPH= (watts x 3.412) / (8.25 x °Temp. Rise)  
GENERAL OPERATION  
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Before closing the switch to allow electric current to flow to the water heater,  
make certain that the water heater is full of water and that the cold water inlet  
valve is open. Complete failure of the heating elements will result if they are  
not totally immersed in water at all times. When the switch is closed, the  
operation of this electric water heater is automatic. Surface mounted  
thermostats are preset to the “HOT” setting to provide a water temperature of  
approximately 120°F (49°C) to reduce the risk of scald injury. For water  
heaters with immersion type thermostats, the temperature control knob  
located on the side on the control box is factory preset to 120°F (49°C). Care  
must be taken whenever using hot water to avoid scalding injury. Certain  
appliances require high temperature hot water (such as dishwashers and  
automatic clothes washers).  
CAUTION  
Scalding may occur within five (5) seconds at a temperature setting of  
135°F (57°C).  
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 flowfrom 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.  
5. Reconnect power supply to water heater.  
TO DRAIN THE HEATER  
Should it become necessary to completely drain the water heater, make sure  
you follow the steps below:  
1. Disconnect the power supply to the heater. Consult the plumbing  
profesonal or electric company in your area for service.  
2. Close the cold water supply shut-off valve.  
3. 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  
connection of a standard hose coupling.  
4. Open a hot water faucet to allow air to enter the system.  
To refill the water heater, refer to “TO FILL THE WATER HEATER.”  
Thermostat Adjustment  
There are two types of thermostats this electric water heater may come  
equipped with from the factory. One type, surface mounted thermostats,  
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directly contacts the water heater tank surface (see Figure 4). The second  
type, immersed type are immersed within the water heater tank and uses  
contactor type relays. Before any work is done on the water heater,  
disconnect all power to the water heater by opening the switch at the main  
electrical circuit breaker or fuse box. Before adjusting or setting surface  
mounted type thermostat(s), disconnect all power to the water heater.  
To gain access to the surface mounted thermostat(s), remove the outer  
access panel and fiberglass insulation. Using a screwdriver rotate the  
thermostat dial on each thermostat clockwise to increase the water  
temperature. After adjusting the surface mounted thermostats, replace the  
fiberglass insulation making sure that the controls are well covered and that  
the plastic terminal shield has not been displaced; replace the access panel.  
Once the water heater has been filled with water, electrical power mbe  
restored to the water heater and the water heater is ready for operation. To  
adjust or set the water temperature for water heaters using immersed type  
thermostat(s), locate the temperature control dial on the right side of the lower  
control box. To increase the water temperature, rotate the temperature control  
dial clockwise (see Figure 5). The thermostat(s) or temperature control dial  
has been factory preset to approximately 120°F (49°C).  
DANGER  
Hotter water increases the risk of scald injury. Scalding may occur within five  
(5) seconds at a temperature setting of 135°F (57°C). To protect against hot  
water injury, install an ASSE approved mixing valve in the water system. This  
valve will reduce point of discharge water temperatures 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, turn off the electrical supply to the  
water heater and contact a qualified service technician.  
Thermostat Adjustment continued-  
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Figure 4  
Figure 5  
MAINTENANCE  
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IMPORTANT  
The water heater should be inspected at a minimum of annually by a  
qualified service technician for damaged components. DO NOT operate this  
water heater if any part is found damaged.  
Shut off the electric power whenever the water supply to the water heater is off.  
Shut off the electric power and water supply, drain the heater completely to  
prevent freezing whenever the building is left unoccupied during the cold  
weather months. In order to insure efficient operation and long tank life, drain  
the water heater at least once a month through the drain valve until the water  
runs clear. Failure to do this may result in noisy operation and lime d  
sediment buildup in the bottom of the tank. Check the temperature-pressure  
relief valve to insure that the valve has not become encrusted with lime. Lift the  
lever at the top of the valve several times until the valve seats properly without  
leaking and operates freely.  
WARNING  
When lifting lever of temperature-pressure relief valve, hot water will be  
released under pressure. Be certain that any released water does not  
result in bodily injury or property damage. The magnesium anode rod  
should be inspected periodically and replaced when necessary to prolong  
tank life.  
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 will help to insure safe and  
reliable operation.  
1. Annually, check the operation of the thermostat(s).  
2. Bi-annually, check the seal around the heating elements for leaks. If there  
is any sign of leaking, disconnect the power supply to the water heater and  
contact the plumbing professional that installed this water heater or a  
qualified service technician.  
Maintenance continued-  
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3. 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 top of the temperature-pressure relief valve several times until  
the valve seats properly without leaking and operates freely.  
WARNING  
When lifting lever of temperature-pressure relief valve, hot water will be  
released under pressure. Be certain that any released water does not result  
in bodily injury or property damage.  
4. 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 for any reason.  
5. Monthly, drain off a gallon of water from the water heter to remove silt and  
sediment.  
WARNING!: THIS WATER MAY BE HOT.  
6. A combination sacrificial anode rod/hot water outlet nipple has been  
installed to extend tank life. The anoe rod should be inspected  
periodically (every 2 years) 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 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 anode consumption. More frequent inspection of  
the anode is needed when using softened (or phosphate treated) water.  
7. If this water heater is equipped with fuses, before removing any fuse,  
disconnct the all power to the water heater. Open the upper control box  
door and replace fuses according to the size indicated on the wiring  
diagram affixed to the inside of the door.  
CAUTION  
FOR YOUR SAFETY, DO NOT ATTEMPT TO REPAIR THERMOSTAT(S),  
HEATING ELEMENTS, OR ELECTRICAL WIRING. REFER SUCH REPAIRS  
TO A QUALIFIED SERVICE TECHNICIAN.  
Maintenance continued-  
Contact your local plumbing supplier or plumbing professional for replacement  
parts or contact the company at the address displayed on the rating plate of  
the water heater.  
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For faster and better service, please provide the part name, model, and serial  
number(s) of the water heater(s) 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;  
4,416,222; 4,628,184; 4,669,448; 4,672,919; 4,808,356; 4,829,983; 4,861,968;  
4,867,106; 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; B1 5,341,770; 5,353,750; 5,372,185; 5,485,879;  
5,574,822; 5,596,952; 5,660,165; 5,682,666; 5,943,984; 5,954,492. Other U.S.  
and Foreign patent applications pending. Current Canadian Patents: 172,914;  
1,280,043; 1,289,832; 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:  
NOTES  
21  
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NOTES  
22  
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NOTES  
23  
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