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TABLE OF CONTENTS

                                                                                                              

Page

ROUGH-IN DIMENSIONS ....................................................................... 2
FOREWORD .......................................................................................... 2
GENERAL SAFETY INFORMATION ...................................................... 3

Precautions ....................................................................................... 3
Liquid Petroleum ............................................................................... 3
Chemical Vapor Corrosion ............................................................... 3
Improper Combustion ........................................................................ 3
Extended Non-use Periods .............................................................. 3-4
Insulation Blankets ............................................................................ 4

INSTALLATION INSTRUCTIONS ............................................................ 4

Required Ability ................................................................................ 4
Locating The Heater ......................................................................... 4
High Altitude Installations ................................................................. 4-5
Clearances ....................................................................................... 5
Hard Water ....................................................................................... 5
Air Requirements .............................................................................. 5
Combination Water (Potable) Heating and Space Heating .............. 5-6
Venting .............................................................................................. 6
Thermometers (Not Supplied) .......................................................... 6
Relief Valve ....................................................................................... 6-7

Gas Piping ......................................................................................... 7-8
Purging .............................................................................................. 8
Gas Pressure Regulation ................................................................ 9

OPERATION .......................................................................................... 9

Precautions ...................................................................................... 9
Lighting Instructions ........................................................................ 10
Temperature Regulation .................................................................. 11
High Temperature Limit Switch ........................................................ 11
Checking Venting ............................................................................. 11-12

SERVICE INFORMATION ...................................................................... 12

Pilot and Main Burner ....................................................................... 12
Checking Gas Input .........................................................................12-13
Vent System .................................................................................... 13
Relief Valve ...................................................................................... 13
Hot Water Odor ............................................................................... 13
Anode Rod Inspection ..................................................................... 13
Winter Protection ............................................................................. 13
Replacement Parts .......................................................................... 13

CHECKLIST .......................................................................................... 13-14
LIMITED WARRANTY ............................................................................ 15

Page

GENERAL SAFETY

INFORMATION

PRECAUTIONS

DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDER
WATER.  Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system and any
gas control which has been under water.

IF THE UNIT IS EXPOSED TO THE FOLLOWING, DO NOT
OPERATE HEATER UNTIL ALL CORRECTIVE STEPS HAVE BEEN
MADE BY A QUALIFIED SERVICEMAN.

1. EXTERNAL FIRE.
2. DAMAGE.
3. FIRING WITHOUT WATER.
4. SOOTING

LIQUID PETROLEUM MODELS

  WARNING

Water heaters for propane or liquified petroleum gas (LPG) are
different from natural gas models.  A natural gas heater will not
function safely on LP gas and no attempt should be made to convert
a heater from natural gas to LP gas.

CHEMICAL VAPOR CORROSION

  WARNING

CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY
OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN
CHEMICAL VAPORS.  SUCH CORROSION MAY RESULT IN
FAILURE AND RISK OF ASPHYXIATION.

Spray can propellants, cleaning solvents, refrigerator and air
conditioning refrigerants, swimming pool chemicals, calcium and

sodium chloride (water softener salt), waxes, and process
chemicals are typical compounds which are potentially corrosive.
Do not store products of this sort near the heater.  Also, air which is
brought in contact with the heater should not contain any of these
chemicals.  If necessary, uncontaminated air should be obtained
from remote or outside sources.  The limited warranty is voided
when failure of the water heater is due to a corrosive atmosphere.
(Refer to the limited warranty for complete terms and conditions.)

 IMPROPER COMBUSTION

  WARNING

ATTIC AND/OR EXHAUST FANS OPERATING ON THE PREMISES
WITH A WATER HEATER CAN RESULT IN CARBON MONOXIDE
POISONING AND DEATH.

OPERATION OF THESE FANS CAN PRODUCE A NEGATIVE DRAFT
IN THE AREA OF THE WATER HEATER PREVENTING THE
PRODUCTS OF COMBUSTION FROM EXHAUSTING THROUGH
THE CHIMNEY OR VENT PIPE.

The venting of the water heater should be inspected by a qualified
service technician at the time of installation and periodically
thereafter to ensure a down-draft condition does not exist.

DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND
VENTILATING AIR.  ADEQUATE AIR FOR COMBUSTION AND
VENTILATION MUST BE PROVIDED FOR SAFE OPERATION.

EXTENDED NON-USE PERIODS

  WARNING

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 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

Summary of Contents for BT- 65

Page 1: ...TENANCE 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 ADIVISION OFA O SMITH CORPORATION M...

Page 2: ...itions of the National Fuel Gas Code ANSI Z223 1 NFPA 54 in Canada CAN CSA B 149 1 00 Both are available from the Canadian Standards Association 8501 East Pleasant Valley Road Cleveland OH 44131 For C...

Page 3: ...ERTAIN CHEMICAL VAPORS SUCH CORROSION MAY RESULT IN FAILUREAND RISK OFASPHYXIATION Spray can propellants cleaning solvents refrigerator and air conditioning refrigerants swimming pool chemicals calciu...

Page 4: ...TER DIRECTLY ON A CARPETED FLOOR A FIRE HAZARD MAY RESULT Instead the water heater must be placed on a metal or wood panel extending beyond the full width and depth by at least 3 inches 76 mm in any d...

Page 5: ...E LATEST EDITION OF THE NATIONALFUELGAS CODE ANSI Z223 1 NFPA54 FOR CANADACONSULT CAN CSA B149 1 00 KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE MATERIALS GASOLINEANDOTHERFLAMMABLES VAPORSAND LIQ...

Page 6: ...nt connection is not available and the vent pipe from the heater must be connected to a common vent with an oil burning furnace the vent pipe should enter the smaller common vent or chimney at a point...

Page 7: ...IONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER SYSTEM MUST BE PROVIDED WARNING TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE TEMPERATURE REGULATION ON PAGE 11 IF HIG...

Page 8: ...ptable for the purpose in locating the leaks DO NOT USE MATCHES CANDLES FLAME OR OTHER SOURCES OF IGNITION FOR THIS PURPOSE FIGURE4 GASPIPINGANDDIRTLEGINSTALLATION DISCONNECTTHE HEATERAND ITS MANUALGA...

Page 9: ...FOR STEPS TO BE TAKEN Before lighting the pilot and operating the heater the following conditions must exist Entire system filled with water Air purged from all lines and no leaks gas and water All ga...

Page 10: ...l If you don t smell gas go to next step 6 Remove or open inner door located below gas control unit 7 Find pilot follow metal tube from gas control The pilot is located in front of the burner or on th...

Page 11: ...of use to exceed the thermostat setting by up to 30 F 17 C If you experience this type of use you should consider using lower temperature settings to reduce scald hazards Valves for reducing point of...

Page 12: ...cteristics 1 Provide complete combustion of gas 2 Cause rapid ignition and carryover of flame across entire burner 3 Give reasonably quiet operation during ignition burning and extinction 4 Cause no e...

Page 13: ...22mm in diameter with a 1 8 3mm diameter steel core wire running down the center of the anode material THE ANODE SHOULD BE REPLACED when the 1 8 3mm diameter core wire is visible as this means that t...

Page 14: ...operation is evidence of poor vent action Possible causes are too long a vent pipe or improper chimney operation 3 If the leakage is from the temperature and pressure relief valve or its discharge pi...

Page 15: ...is warranty shall be void and shall have no effect if the design or structure of the water heater is or is attempted to be modified or altered in any way including but not limited to by attaching non...

Page 16: ...16 PRODUCT SERVICE DIVISION 5621 W 115TH STREET ALSIP IL 60803 PHONE 1 800 433 2545 FAX 1 800 433 2515 E MAIL parts hotwater com www hotwater com REPLACEMENTPARTS...

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