A.O. Smith DEL, DEN warranty Foreword, General Safety Instructions

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FOREWORD

Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your confidence in our products. Detailed installation diagrams are in this manual. These diagrams will serve to provide the installer with a reference for the materials and method of piping suggested. IT IS NECESSARY THAT ALL WATER PIPING AND THE ELECTRICAL WIRING BE INSTALLED AND CONNECTED AS SHOWN IN THE DIAGRAMS.

In addition to these instructions, the equipment shall be installed in accordance with those installation regulations in force in the local area where the installation is to be made. Authorities having jurisdiction shall be consulted before installations are made.

GENERAL SAFETY

INSTRUCTIONS

BE SURE TO TURN OFF POWER WHEN WORKING ON OR NEAR THE ELECTRICAL SYSTEM OF THE HEATER. NEVER TOUCH ELECTRICAL COMPONENTS WITH WET HANDS OR WHEN STANDING IN WATER. WHEN REPLACING FUSES ALWAYS USE THE CORRECT SIZE FOR THE CIRCUIT.

The principal components of the heater are identified on page 5. The model and rating plate on page 6 interprets certain markings into useful information. Both of these references should be used to identify the heater, its components and optional equipment.

WARNING

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 YOUR LOCAL DEALER, WHOLESALER, PUBLIC UTILITIES OR CALIFORNIA’S OFFICE OF STATE ARCHITECT, 400 P STREET, SACRAMENTO, CA 95814.

INSULATION BLANKETS

Insulation blankets available to the general public for external use on electric water heaters are not approved for use on your A.O. Smith water heater. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank water heaters. Your A. O. Smith water heater meets or exceeds the National Appliance Energy Act standards with respect to insulation and standby loss requirements, making an insulation blanket unnecessary.

WARNING

Should you choose to apply an insulation blanket to this heater, you should follow these instructions (See page 5 for identification of components mentioned below). Failure to follow these instructions can result in fire, asphyxiation, serious personal injury or death.

•Do not cover the temperature & pressure relief valve.

•Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference.

•Do obtain new labels from A. O. Smith for placement on the blanket directly over the existing labels.

EXTENDED NON-USE PERIODS

CAUTION

HYDROGEN GAS CAN BE PRODUCED IN A HOT WATER SYSTEM SERVED BY THIS 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 a nearby 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 OPENED.

CAUTION

AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF ELECTRIC SHOCK OR POSSIBLE ELECTROCUTION. THE GROUND SCREW AT THE JUNCTION BOX IS FOR BONDING THE HEATER TO A GROUNDED SERVICE ENTRANCE CONDUCTOR, A GROUNDED SERVICE ENTRANCE RACEWAY, OR AN EARTH GROUNDING ELECTRODE CONDUCTOR.

WARNING

FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

REQUIRED ABILITY

INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. PLUMBING AND ELECTRICAL WORK ARE REQUIRED.

GENERAL

The installation must conform to these instructions, the local code authority having jurisdiction, and the requirements of the power company. In the absence of code requirements follow the latest edition of NFPA-70, The National Electrical Code which may be ordered from: National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.

LOCATION

The water heater should be located as close as possible to/or centralized to the water piping system. The water heater should be located in an area not subject to freezing temperatures.

The heater should be located in an area where leakage of the tank or connections will not result in damage to the area adjacent to the heater or to lower floors of the structure.

When such locations cannot be avoided, a suitable drain pan should be installed under the heater.

Such pans should be at least two inches deep, have a minimum length and width of at least two inches greater than the diameter of the heater and should be piped to an adequate drain.

Drain pans suitable for these heaters are available from your distributor or A. O. Smith Products Service Division, 5621 W. 115th Street, Alsip, IL 60803.

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Contents Models DEN and DEL ROUGH-IN Dimensions Foreword General Safety InstructionsBranch Circuit ClearancesChemical Vapor Corrosion Electrical GeneralPortion of -18 follows Wiring DiagramsTypical Piping Connections Temperature and Pressure Relief ValveFilling Temperature AdjustmentTemperature Regulation OperationTroubleshooting If YOU Cannot Identify or Correct Source of the Malfunction Water is TOO HOTWater Heater Makes Sounds Water Leakage is SuspectedLeakage Checkpoints Tank Models DEN and DEL Electric Water Heater Limited WarrantyTH STREET, ALSIP, IL Phone 800-433-2545 Fax

DEN, DEL specifications

A.O. Smith is a well-respected name in the water heating industry, known for its innovative and efficient products. Among their notable offerings are the A.O. Smith DEN and DEL models, which showcase advanced features and technologies designed for residential hot water needs.

The A.O. Smith DEN series is a line of electric tank water heaters that exemplify reliability and performance. One of its main features is the "Eco-friendly" design that meets stringent regulatory standards while providing exceptional energy efficiency. The DEN models are equipped with a variety of capacities, allowing homeowners to choose a unit that best fits their needs, ranging from smaller households to larger family homes.

The DEL series, on the other hand, offers gas-fired water heaters that are built to provide high recovery rates, ensuring that hot water is available whenever needed. The DEL models are equipped with a high-efficiency burner system that enhances fuel utilization, reducing energy costs for homeowners. The robust construction of the DEL series also ensures durability and longevity, making it an excellent investment for those seeking reliable hot water solutions.

Both the DEN and DEL series feature user-friendly digital displays, making it easy for users to monitor temperature settings and energy usage. This technological integration empowers homeowners to manage their hot water needs more effectively, leading to both convenience and savings.

In terms of safety, A.O. Smith has incorporated features such as temperature and pressure relief valves in both series to prevent overheating and excessive pressure buildup. This focus on safety is paramount, providing peace of mind for users.

Moreover, the DEN and DEL models come with comprehensive warranties, reflecting the company's commitment to quality. Homeowners can rest assured that they are investing in products that are not only efficient but also backed by a trusted manufacturer with decades of experience.

In summary, the A.O. Smith DEN and DEL series represent a harmonious blend of advanced technology, energy efficiency, and user-centric features. With their focus on performance and safety, these models stand out as exemplary choices for anyone in need of reliable and efficient hot water solutions. Whether for electric or gas applications, A.O. Smith continues to lead the way in the water heating industry.
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