Instruction Manual
COMMERCIAL ELECTRIC WATER HEATERS
A DIVISION OF A.O. SMITH CORPORATION |
RENTON, WASHINGTON |
ASME |
Thank you for buying this energy efficient water heater fromA.O. Smith Water Products Company. We appreciate your confidence in our products.
MODELS DVE-150 THRU DVE-10000 DHE-200 THRU DHE 10000
INSTALLATION - OPERATION - SERVICE - MAINTENANCE - LIMITED WARRANTY
place these instructions adjacent to heater and notify owner to keep for future reference.
PRINTED IN THE U.S.A 1207 |
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09063340-000 |
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SAFE INSTALLATION, USE, AND SERVICE
The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who install, use, or service this water heater.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
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DANGER indicates an imminently hazardous |
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DANGER |
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situation which, if not avoided, could result |
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in death or injury. |
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WARNING indicates a potentially hazardous |
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WARNING |
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situation which, if not avoided, could result |
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in death or injury. |
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CAUTION indicates a potentially hazardous |
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CAUTION |
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situation which, if not avoided, may result |
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in minor or moderate injury. |
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CAUTION used without the safety alert |
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CAUTION |
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symbol indicates a potentially hazardous |
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situation which, if not avoided, could result |
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in property damage. |
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All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message, and how to avoid the risk of injury.
IMPORTANT DEFINITIONS
•Qualified Installer or Service Agency:
Installation and service of this water heater requires ability equivalent to that of a Qualified Agency (as defined by ANSI below) in the field involved. Installation skills such as plumbing, air supply, venting, gas supply, electrical supply are required in addition to electrical testing skills when performing service.
•ANSI Z223.1 2006 Sec. 3.3.83:
“Qualified Agency” - “Any individual, firm, corporation or company that either in person or through a representative is engaged in and is responsible for (a) the installation, testing or replacement of gas piping or (b) the connection, installation, testing, repair or servicing of appliances and equipment; that is experienced in such work; that is familiar with all precautions required; and that has complied with all the requirements of the authority having jurisdiction.”
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GENERAL SAFETY
When servicing this unit, verify the power to the unit is turned off prior to opening the control cabinet door.
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TABLE OF CONTENTS
SAFE INSTALLATION, USE AND SERVICE............................ |
2 |
WIRING DIAGRAMS......................................................... |
12-13 |
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GENERAL SAFETY.................................................................. |
3 |
OPERATION........................................................................... |
14 |
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TABLE OF CONTENTS............................................................ |
4 |
General............................................................................ |
14 |
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INTRODUCTION....................................................................... |
4 |
Filling the Water Heater................................................... |
14 |
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Preparing for the New Installation..................................... |
4 |
Start Up........................................................................... |
14 |
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DIMENSIONS AND CAPACITIES DATA |
5 |
Draining the Water Heater............................................... |
14 |
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TEMPERATURE REGULATION |
14 |
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FEATURES AND COMPONENTS |
6-7 |
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Temperature Adjustment |
15 |
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LOCATING THE NEW WATER HEATER |
8 |
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High Termperature Devices |
15 |
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INSTALLATION |
8 |
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MAINTENANCE |
15 |
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Required Ability |
8 |
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General |
15 |
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General |
8 |
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Temperature-Pressure Relief Valve Operation |
15-16 |
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Mixing Valve Usage |
8 |
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Flushing |
16 |
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Chemical Vapor Corrosion |
8 |
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Sediment Removal |
16 |
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Circulating Pump |
9 |
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Water and LIme Scale Removal |
16 |
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Insulation Blankets |
9 |
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Strange Sounds |
16-17 |
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Temperature-Pressure Relief Valve |
9 |
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TROUBLESHOOTING CHECKLIST....................................... |
17 |
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ELECTRICAL.......................................................................... |
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Not Enough or No Water................................................. |
17 |
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General............................................................................ |
10 |
Water Is Too Hot.............................................................. |
17 |
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Branch Circuit.................................................................. |
10 |
Water Heater Makes Strange Sounds............................. |
17 |
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Heater Circuits................................................................. |
10 |
Leakage Checkpoints...................................................... |
17 |
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Control Circuits................................................................ |
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If You Cannot Identify or Correct the Source of Malfunction........... |
17 |
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Power Circuits................................................................. |
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WARRANTY............................................................................ |
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ELECTRICAL AND RECOVERIES DATA............................... |
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NOTES.................................................................................... |
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INTRODUCTION
Thank You for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service.
Abbreviations Found In This Instruction Manual:
•ANSI - American National Standards Institute
•ASME - American Society of Mechanical Engineers
•GAMA - Gas Appliance Manufacturer’s Association
•NEC - National Electrical Code
•NFPA - National Fire Protection Association
•UL - Underwriters Laboratory
Preparing for the Installation
1.Read the “General Safety” section of this manual first and then the entire manual carefully. If you don’t follow the safety rules, the water heater may not operate safely. It could cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.
This manual contains instructions for the installation, operation, and maintenance of the electric water heater. It also contains warnings throughout the manual that you must read and be aware of. All warnings and all instructions are essential to the proper operation of the water heater and your safety. READ THE ENTIRE
MANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER.
2.The installation must conform with these instructions and the local code authority having jurisdiction and the requirements of the power company. In the absence of code requirements, follow NFPA-70 (current edition). The National Electrical Code may be ordered from: National Fire ProtectionAssociation, 1 Batterymarch Park, Quincy, MA 02269.
3.If after reading this manual you have any questions or do not understand any portion of the instructions, contact A.O. Smith Water Products Customer Care Center at 1-800-527-1953.
A sample rating plate and barcode tag are shown on page 3 of this manual. In order to expedite your request, please have the serial number and item ID from the barcode tag available for the technician.
4.Carefully plan your intended placement of the water heater. Examine the location to ensure the water heater complies with the “Locating the New Water Heater” section in this manual.
INSTALLATION AND SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN OR QUALIFIED AGENCY (Page 2) IN THE FIELD INVOLVED. PLUMBING AND ELECTRICAL WORK ARE REQUIRED.
5.For installation in California this water heater must be braced or anchored 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, 1102 Q Street, Suite 5100, Sacramento, CA 95811.
6.Massachusetts Code requires this water heater to be installed in accordance with Massachusetts 248-CMR 2.00: State Plumbing Code and 248-CMR 5.00.
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dimensions and capacities data
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FEATURES AND COMPONENTS
NOTE: Your actual configuration may vary.
DVE
Vertical Water Heater (typical).
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