A.O. Smith BT- 65 manual

1 MODEL BT- 65 PLACE THESE INSTRUCTIONS ADJACENT T O HEA TER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE. COMMERCIAL GAS W A TER HEA TER Glass-Lined T ank-type W ater Heater P ART NO. 195701-000 SUPERSEDES P ART NO. 194975-000 • INST ALLA TION • OPERA TION • SER VICE • MAINTENANCE • LIMITED W ARRANTY Thank you for buying this energy eff[...]

2 ROUGH-IN-DIMENSIONS FOREWORD The design of Model BT-65 complies with the latest version of ANSI Z21.10.1/CSA 4.1 M98 as automatic storage type water heater . Installation diagrams are found in this manual. These diagrams will serve to provide the installer with a reference for the materials and method of piping necessary . It is highly essential [...]

3 TABLE OF CONTENTS Page ROUGH-IN DIMENSIONS ....................................................................... 2 FOREWORD .......................................................................................... 2 GENERAL SAFETY INFORMA TION ...................................................... 3 Precautions ................................[...]

4 to flow . THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET A T THE TIME IT IS OPEN. INSULA TION BLANKETS Insulation blankets available to the general public for external use on gas water heaters are not necessary with A.O. Smith water heater . The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage[...]

5 U.S. REQUIREMENTS Ratings specified by manufacturers for most appliances apply for elevations up to 2000 feet (610 m). For elevations above 2000 feet (610 m), ratings must be reduced at the rate of 4% for each 1000 feet (305 m) above sea level. For example, if a heater is rated at 65,000 Btuh (19 Kw) at sea level, to rate the heater at 4000 feet [...]

6 2. T oxic chemicals, such as those used for boiler treatment, shall NEVER be introduced into this system. 3. This unit may NEVER be connected to any existing heating system or component(s) previously used with a non-potable water heating appliance. 4 . When the system requires water for space heating at temperatures higher than required for domes[...]

7 In addition to the appliance relief valve, each remote storage tank which may be used in conjunction with this appliance shall also be installed with a properly sized, rated and approved combination temperature (ANSI) and pressure (ASME) relief valve(s). WARNING THE PURPOSE OF RELIEF V A L VE IS T O A VOID EXCESSIVE PRESSURE OR TEMPERA TURE INTO [...]

8 TABLE 1 - GAS SUPPLY LINE SIZES (IN INCHES)* MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOUR LENGTH NORMAL IRON PIPE SIZES (INCHES) I N INPUT IN THOUSANDS BTU/HR FEET 1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 4" 10 175 360 680 1400 2100 3960 6300 1 1000 23000 20 120 250 485 950 1460 2750 4360 7700 15800 [...]

9 T ABLE 2 MANIFOLD PRESSURE SETTING Model T ype of Manifold Number G as Input Pressure BT-65 Natural 65,000 Btu/hr 4.0 in. W .C. 16.7 KW/hr 1.0 Kpa BT-65 Propane 55,000 Btu/hr 10.0 in. W.C. 16Kw 2.49kPa OPERA TION It is recommended that a qualified person perform the initial firing of the heater. At this time the user should not hesitate to ask th[...]

10 FOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING INSTRUCTIONS W ARNING I f you do not follow these instructions exactly , a fire or explosion may result causing property damage, personal injury or loss of life. • If you cannot reach your gas supplier , call the fire department. C . Use only your hand to push in or turn the gas control knob. Never[...]

11 TEMPERA TURE REGULA TION DANGER THIS W A TER HEA TER IS EQUIPPED WITH AN ADJUST ABLE THERMOST A T TO CONTROL W A TER TEMPERA TURE. HOT W A TER TEMPERA TURES REQUIRED FOR AUTOMA TIC DISHW ASHER AND LAUNDRY USE CAN CAUSE P AINFUL SCALDING WITH POSSIBLE SERIOUS AND PERMANENT INJURY . THE TEMPERA TURE A T WHICH INJURY OCCURS V ARIES WITH THE PERSON?[...]

12 of the building. Turn on all appliances not connected to the venting system. Turn on all exhaust fans, such as range hoods and bathroom exhausts, so they shall operate at maximum speed. Close fireplace dampers. 4. Follow the lighting instruction. Place the water heater being inspected in operation. Adjust thermostat so appliance shall operate co[...]

13 Compare the actual input rate to that given on the heater’s rating plate. In the example, the BT-65’s full input rate should be 65,000 Btuh (19.0 KW) for natural gas. VENT SYSTEM Examine the venting system every 6 months for obstructions and/ or deterioration of vent piping. RELIEF V AL VE At least once a year the temperature and pressure re[...]

14 W A TER TEMPERATURE IS T OO HOT 1. The thermostat water temperature adjusting dial may be set too high. 2 . If lowering control setting does not reduce the water temperature contact your dealer . GAS SMELL A T THE HEA TER 1. Close the main Shut-off valve in the gas supply pipe near the heater , see fig. 4 on page 8. The thermostat includes a gas[...]

15 Model BT Limited W arranty A. O. Smith Corporation, the warrantor, extends the following LIMITED W ARRANTY to the owner of this water heater . 1. THE T ANK 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 aft[...]

16 PRODUCT SERVICE DIVISION 5621 W . 1 15TH STREET , ALSIP , IL 60803 PHONE: 1-800-433-2545 F AX: 1-800-433-2515 E-MAIL: part s@hotwater .com www .hotwater .com REPLACEMENT P ARTS[...]