A.O. Smith BTX-80 SERIES 100 Instruction Manual

1PRINTED IN U.S.A. 1004MODELS BT- 80 AND 100PLACE THESE INSTRUCTIONS ADJACENT TO HEATERAND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.COMMERCIAL GAS W

10FOR YOUR SAFETY READ BEFORE LIGHTINGWARNING: If you do not follow these instructions exactly, a fire orexplosion may result causing property damage,

11FOR YOUR SAFETY READ BEFORE LIGHTING• If you cannot reach your gas supplier, call thefire department.C. Use only your hand to push down or turn the

12It is recommended that lower water temperatures be used to avoidthe risk of scalding. It is further recommended, in all cases, thatthe water temper

13 WARNINGFAILURE TO CORRECT BACK DRAFTS MAY CAUSE AIRCONTAMINATION AND UNSAFE CONDITIONS.• If the back draft cannot be corrected by the normal method

14TABLE 3INPUT CHECK TIME REQUIRED TOCONSUME 1 CU. FT. OF GASType of BTU Per Approx. Time Required ToModel Gas Cu. Ft. Consume 1 Cu. Ft. of GasBT-80 N

15PREVENTIVE MAINTENANCERECOMMENDED PROCEDURE FOR PERIODICREMOVAL OF LIME DEPOSITS FROM TANKTYPE COMMERCIAL WATER HEATERSThe amount of calcium carbona

16DELIMING USING FLO-JUG METHODUN•LIME in the 5 gallon size is recommended for deliming of theBT-80 and 100 models. UN•LIME with the necessary hoses

17if excessive, can drip into the floor shield. Also, duringnormal operation there may be occasions when largequantities of water are drawn, chilling

18Model BT Limited WarrantyA. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.1. THE TAN

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2FOREWORDThe design of models BT-80 and 100 comply with the latest versionof ANSI Z21.10.3-CSA 4.3 as automatic storage or automaticcirculating tank t

20A.O. SMITH WATER PRODUCTS COMPANY5621 W. 115TH STREET • ALSIP, ILLINOIS 60803PHONE: 1-800-433-2545 • FAX: 1-800-433-2515www.aosmithwaterheaters.com

3GENERAL SAFETYINFORMATIONPRECAUTIONSDO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDERWATER. Immediately call a qualified service technician to in

4IF YOU EXPERIENCE AN OUT-OF-GAS SITUATION, DO NOT TRY TORELIGHT APPLIANCES YOURSELF, ask your LP delivery person torelight pilots for you. Only trai

5Drain pans suitable for these heaters are available from yourdistributor or A. O. Smith Water Products Company, 5621 West115th Street, Alsip, IL 6080

6The installation instructions for confined spaces in tightlyconstructed buildings must be followed to ensure adequate airsupply.CONFINED SPACEWhen dr

7VENT CONNECTIONVent connections must be made to an adequate stack or chimney.Size and install proper size vent pipe. Do not reduce pipe size toless

8GAS PIPINGContact your local gas service company to ensure that adequategas service is available and to review applicable installation codesfor your

9FIGURE 6-THERMOSTAT FOR NATURAL ANDPROPANE GASESGAS PRESSURE REGULATORThe gas pressure regulator is built into the gas valve and isequipped to operat