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A.O. Smith BTI-80 Installation, Operation, Service, Maintenance, Limited Warranty

A.o. smith nstallation, operation, service, maintenance manual gas water heater bti-80,100 110 series
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MODELS BTI-80 AND 100
COMMERCIAL GAS WATER HEATER
• INSTALLATION • OPERATION • SERVICE • MAINTENANCE • LIMITED WARRANTY
Thank you for buying this energy efficient water heater
from A.O. Smith Water Products Company. We
appreciate your confidence in our products.
PRINTED IN U.S.A. 0803
Glass-Lined Tank-type Water Heater
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER
AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION
RELATIVE TO YOUR SAFETY. PLEASE READ THOROUGHLY
BEFORE INSTALLING AND USING THIS APPLIANCE.
A DIVISION OF A.O. SMITH CORPORATION
McBEE, SOUTH CAROLINA, USA
STRATFORD, ONTARIO, CANADA
www.hotwater.com
1
Series 110
Natural Gas Only
CAUTION
PART NO.195086-000

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Summary of Contents for A.O. Smith BTI-80

  • Page 1 Glass-Lined Tank-type Water Heater • INSTALLATION • OPERATION • SERVICE • MAINTENANCE • LIMITED WARRANTY Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your confidence in our products. PRINTED IN U.S.A. 0803 TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY.

  • Page 2: Rough-In Dimensions

    Minimum pressures must be maintained under both load and no load (static and dynamic) conditions. FOREWORD The design of models BTI-80 and 100 comply with the latest version of ANSI Z21.10.3/CSA 4.3 as automatic storage or automatic circulating tank type water heaters.

  • Page 3: Table Of Contents

    LP gas. Your BTI-80 and 100-110 series are not for use with LP gas. 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).

  • Page 4: High Altitude Installations

    To do this, the main burner orifices require replacement with orifices sized for the particular installation elevation. Correct orifice sizing and parts may be obtained from A.O. Smith Water Products Company. When ordering, be sure to state the model number and the altitude of the location where the water heater is being installed.

  • Page 5: Clearances

    Drain pans suitable for these heaters are available from your distributor or A. O. Smith Water Products Company, 5621 West 115th Street, Alsip, IL 60803. In Canada, A.O. Smith Enterprises, Ltd., P.O. Box 310-768 Erie Street, Stratford, Ontario N5A 6T3.

  • Page 6: Venting

    VENTING WARNING THE INSTRUCTIONS IN THIS SECTION ON VENTING MUST BE FOLLOWED TO AVOID CHOKED COMBUSTION OR RECIRCULATION OF FLUE GASES. SUCH CONDITIONS CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION. Heater must be protected from freezing downdrafts. Remove all soot or other obstructions from the chimney that will retard a free draft.

  • Page 7: Water Potable Heating And Space Heating

    THERMOMETERS (Not Supplied) Thermometers should be obtained and field installed as shown in Figure 3. Thermometers are installed in the system as a means of detecting the temperature of the outlet water supply. COMBINATION WATER (POTABLE) HEATING AND SPACE HEATING All piping components connected to this unit for space heating applications shall be suitable for use with potable water.

  • Page 8: Heater Wiring

    HEATER WIRING All electrical work must be installed in the United States in accordance with the latest version of the National Electrical Code ANSI/NFPA No. 70, in Canada, with the latest version of Canadian Electrical Code CSA C22.1, must conform to all local code authority having jurisdiction. AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF ELECTRICAL SHOCK OR POSSIBLE ELECTROCUTION.

  • Page 9: Purging

    1464 1347 Model Number BTI-80 BTI-100 It is recommended that a qualified person perform the initial firing of the heater. At this time the user should not hesitate to ask the individual any questions which he may have in regard to the operation and maintenance of the unit.

  • Page 10: Lighting Instructions

    FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. BEFORE OPERATING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES. A.

  • Page 11: Temperature Regulation

    THE THERMOSTAT TO PREVENT TAMPERING. Suitable covers are available through A.O. Smith Water Products Company, 5621 W. 115th Street, Alsip, IL 60803. In Canada, A.O. Smith Enterprises, LTD., P.O. Box 310- 768 Erie Street, Stratford, Ontario N5A 6T3. It is recommended that lower water temperatures be used to avoid the risk of scalding.

  • Page 12: Service Information

    3,600 X 1,050 = 80,000 Btuh (23.4Kwh) 47.3 Compare the actual input rate to that given on the heater’s rating plate. In the example, the BTI-80’s full input rate should be 80,000 Btuh (23.4 Kwh) for natural gas. VENT SYSTEM Examine the venting system every 6 months for obstructions and/or deterioration of vent piping.

  • Page 13: Blower Maintenance

    Refer to the Yellow Pages for where to call or contact the A. O. Smith Water Products Company, 5621 West 115th Street, Alsip, Illinois 60803, 1-800-433-2545. In Canada contact A.O. Smith Enterprises Ltd., P.O. Box, 310-768 Erie Street, Stratford, Ontario N5A 6T3, 1-800-265-8520.

  • Page 14: Tank Cleanout Procedure

    TANK CLEANOUT PROCEDURE The following practices will ensure longer life and enable the unit to operate at its designed efficiency: Once a month the heater should be flushed. Open the drain valve and allow two gallons of water to drain from the heater. Inlet water valve should remain open to maintain pressure in tank.

  • Page 15: Checklist

    When deliming has been completed, the heater should be flushed for 3 to 5 minutes with fresh water. • Remove the deliming equipment, install the drain valve, open the cold water inlet line and allow water to flow through heater and out drain valve.

  • Page 16: Service & Repair

    Do not attempt to repair the water heater yourself. Any work performed by unauthorized personnel may void the warranty. If you are having a problem with your A.O. Smith water heater and are not pleased with the service you received: •...
  • Page 17 Replace harness. Replace igniter. Reset cycle by turning switch off and then back on. If unit does not light in three trials, call an authorized A.O. Smith service representative. Turn temperature control higher. Replace thermostat. Replace. Reduce hot water use.

  • Page 18: Troubleshooting

    WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. LED STATUS An open earth ground circuit to the ignition system. B C D E F Wiring error or a high resistance to B C D E F...

  • Page 19: Limited Warranty

    A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. THE TANK If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first THREE years after initial installation, the warrantor will supply a complete new A.
  • Page 20 REPLACEMENT PARTS 5621 W. 115TH STREET, ALSIP, IL 60803 PHONE: 1-800-433-2545 FAX: 1-800-433-2515 www.hotwater.com E-mail: parts@hotwater.com...

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