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A.O. Smith ELECTRIC WATER HEATER Owner's Manual

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RESIDENTIAL
Thank you for buying this water heater from A.O. Smith Water Products
Company. We appreciate your confidence in our products.
Please read through this informative manual and pay special attention to
the following:

GENERAL SAFETY INFORMATION

TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION
RELATIVE TO YOUR SAFETY. PLEASE READ THOROUGHLY
BEFORE INSTALLING AND USING THIS APPLIANCE.
EXTERNAL DAMAGE
Do not operate the water heater until it has been fully checked out
by a qualified service technician, if the water heater:
• Has been exposed to fire or damage.
• Produces steam or unusually hot water.
If the water heater has been subject to flooding, it must be replaced.
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 Conservation Act
standards with respect to insulation and standby loss requirements, making
an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this heater, you should
follow these instructions (See Figure 1 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 (T&P) valve.
•
Do not cover the instruction manual. Keep it on the side of the water
heater or nearby for future reference.
•
Do obtain new warning and instruction labels from A.O. Smith for
placement on the blanket directly over the existing labels.
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.
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.
PRINTED IN THE U.S.A. 700
ELECTRIC WATER HEATER
CAUTION
WARNING
WARNING
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

TABLE OF CONTENTS

To
A DIVISION OF A.O. SMITH CORPORATION
WWW.HOTWATER.COM
SUPERSEDES 183052-000 REV. 1 & 183051-000 REV. 4
1
OWNER'S MANUAL
PART NO. 183495-000
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Summary of Contents for A.O. Smith ELECTRIC WATER HEATER

  • Page 1: Table Of Contents

    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.

  • Page 2: Get To Know Your Water Heater

    GET TO KNOW YOUR WATER HEATER LOWBOYS UPRIGHTS COMPACTS TABLE TOPS INSTALL VACUUM RELIEF IN COLD WATER INLET LINE AS REQUIRED BY LOCAL CODES. FIGURE 1...

  • Page 3: Installation

    TEMPERATURE AND PRESSURE RELIEF VALVE INSTALLATION A NEW TEMPERATURE AND PRESSURE RELIEF VALVE COMPLYING WITH THE STANDARD FOR RELIEF VALVES FOR HOT WATER SUPPLY SYSTEMS, ANSI Z21.22 MUST BE INSTALLED IN THE WARNING HEATER IN THE MARKED OPENING PROVIDED. THE VALVE MUST FOR CALIFORNIA INSTALLATION THIS WATER HEATER MUST BE BE OF A SIZE (INPUT RATING) THAT WILL BE ADEQUATE FOR YOUR BRACED, ANCHORED, OR STRAPPED TO AVOID FALLING OR...

  • Page 4: Wiring Diagrams

    WIRING DIAGRAMS DANGER TURN OFF THE HEATER ELECTRICAL SUPPLY BEFORE SERVICING ANY ELECTRICAL COMPONENTS. FIGURE 2...

  • Page 5: Operation

    MAINTENANCE DANGER 1. Turn off the heater electrical supply. Do not attempt to adjust thermostat Electric water heater maintenance consists of cleaning the tank bottom with power on. and removing scale from the heating elements. Your dealer should be 2. Remove the thermostat access panels and covers from the contacted for tank and element cleaning.

  • Page 6: Relief Valve

    Periodically the temperature and pressure relief valve should be checked of the valve several times until the valve seats properly and operates freely. to insure that it is in operating condition. Lift the lever at the top of the If water does not flow, valve may be obstructed or corroded. Remove valve several times until the valve seats properly and operates freely.

  • Page 7: Leakage Checkpoint

    LEAKAGE CHECKPOINTS INSTRUCTIONS: USE THIS ILLUSTRATION AS A GUIDE WHEN CHECKING FOR SOURCES OF WATER LEAKAGE. YOU OR YOUR DEALER MAY BE ABLE TO CORRECT WHAT APPEARS TO BE A PROBLEM. Temperature & Pressure Relief Valve Cover and Insulation shown removed to reveal tank top To Open Drain Condensation and dripping may...

  • Page 8: Warranty

    A. O. Smith Corporation, 5621 West 115th Street, Alsip, Illinois, 60803 (800) 323-2636. Canadian customers should EC, EESC, ELJC contact A. O. Smith Enterprises, Ltd., P.O. Box 310-768 Erie Street, Stratford, Ontario N5A 6T3, (519) 271-5800. EES, EEST, ELJF, ELSF, EEH,...

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