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WIRING DIAGRAM AND SCHEMATIC - FIGURE 4

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.

If any of the original wire as supplied with the appliance must be replaced, use only type 105°C thermoplastic or equivalent, 250°C type F must be used
for the flame sensor leads and the spark ignition cable must be high voltage 250°C.

 CAUTION

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS.  WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION.  VERIFY PROPER OPERATION AFTER SERVICING.

Summary of Contents for BTI 80

Page 1: ... 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 CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY PLEASE READ THOROUGHLY BEFORE INSTALLINGAND USING THIS APPLIANCE A DIVISION OF A O SMITH CORPORATION McBEE SOUTH CAROLINA USA STRATFORD ONTARIO C...

Page 2: ...Quincy MA02269 INSTALL IN ACCORDANCE WITH LOCAL CODES TOP VIEW TABLE 1 DIMENSIONS A B C D E F G H J K L M MODEL In mm In mm In mm In mm In mm In mm In mm In mm In mm In mm In mm In mm BTI 80 66 5 16 1684 58 1 2 1486 29 5 8 753 25 3 8 645 17 1 4 438 4 102 14 356 16 406 1 1 4 32 1 25 1 2 13 11 15 16 303 BTI 100 71 1 4 1810 66 1 2 1689 30 3 4 781 26 1 2 673 17 1 4 438 4 102 14 1 2 368 16 406 1 1 4 32...

Page 3: ... 12 13 Hot Water Odor 13 Winter Protection 13 ReplacementParts 13 PREVENTIVEMAINTENANCE 13 14 Procedure for Periodic Removal Of Lime Deposits 13 DelimingSolvents 13 Tank Cleanout Procedure 13 14 CHECKLIST 14 15 Condensation 15 Cathodic Protection Anode 15 16 Service Repair 16 TROUBLESHOOTING 16 18 LIMITEDWARRANTY 19 Spray can propellants cleaning solvents refrigerator and air conditioning refriger...

Page 4: ...ld conversion for operation at altitudes other than that specified on the heater rating plate is not permitted The input reduction is primarily achieved by reducing the size of the main burner orifices 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 fromA O Smith Water Products Co...

Page 5: ...BLES VAPORS AND LIQUIDS DONOTOBSTRUCTTHEFLOWOFCOMBUSTIONORVENTILATINGAIR WARNING ATTICAND OREXHAUSTFANSOPERATINGONTHEPREMISESWITHA WATERHEATERCANRESULTINCARBONMONOXIDEPOISONINGAND DEATH OPERATION OF THESE FANS CAN PRODUCE A NEGATIVE DRAFT INTHEAREAOF THE WATER HEATER PREVENTING THE PRODUCTS OF COMBUSTION FROM EXHAUSTING THROUGHTHE CHIMNEY OR VENT PIPE The venting of the water heater should be insp...

Page 6: ... system are exposed to ambient temperatures below 35 degrees F 2 degrees C it must be insulated to prevent condensation Do not connect the heater to a common vent or chimney with solid fuel burning equipment This practice is prohibited by many local building codes as is the practice of venting gas fired equipment to the duct work of ventilation systems Where a separate vent connection is not avail...

Page 7: ...Your local code authority may have other specific relief valve requirements ADRAINLINEMUSTBECONNECTEDTOTHERELIEFVALVETODIRECT DISCHARGE TOASAFE LOCATION TOAVOID SCALDING OR WATER DAMAGE THISLINEMUSTNOTBEREDUCEDFROMTHESIZEOFTHE VALVEOUTLETANDMUSTNOTCONTAINVALVES RESTRICTIONSNOR SHOULDITBELOCATEDINFREEZINGAREAS DONOTTHREADORCAP THEENDOFTHISLINE RESTRICTEDORBLOCKEDDISCHARGEWILL DEFEATTHEPURPOSEOFTHEV...

Page 8: ... having jurisdiction AN ELECTRICAL GROUND IS REQUIRED TO REDUCE RISK OF ELECTRICAL SHOCK OR POSSIBLE ELECTROCUTION If any of the original wire as supplied with the appliance must be replaced use only type 105 C thermoplastic or equivalent 250 C type F must be used for the flame sensor leads and the spark ignition cable must be high voltage 250 C CAUTION LABELALLWIRES PRIOR TO DISCONNECTION WHEN SE...

Page 9: ...as entered CAUTION PURGINGSHOULDBEPERFORMEDBYPERSONSEXPERIENCEDINTHIS TYPEGASSERVICE TOAVOIDRISKOFFIREOREXPLOSION PURGE DISCHARGEMUSTNOTENTERCONFINEDAREASORSPACESWHERE IGNITIONCANOCCUR THEAREAMUSTBEWELLVENTILATEDANDALL SOURCESOFIGNITIONMUSTBEINACTIVATEDORREMOVED GASMETERSIZE NATURALGASESONLY Be sure the gas meter has sufficient capacity to supply the full rated gas input of the water heater as wel...

Page 10: ... them call a qualified service technician Force or attempted repair may result in a fire or explosion D 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 OPERATING INSTRUCTIONS A Set thermostat to the lowest setting B Turn of...

Page 11: ... the venting system for proper size and horizontal pitch as required in the National Fuel Gas Code ANSI Z223 1 NFPA54 or the CAN CGA B149 Installation codes and these instructions Determine that there is no blockage or restriction leakage corrosion and other deficiencies which could cause an unsafe condition 3 So far as is practical close all building doors and windows and all doors between the sp...

Page 12: ...hs for obstructions and or deterioration of vent piping 6 After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous conditions of use 7 If improper venting is observed during any of the above tests the venting system must be c...

Page 13: ...ontact your dealer WINTER PROTECTION In regions where freezing weather is encountered all water must be drained from unit and piping when out of service water shut off Drain valve must be left open until unit is returned to service REPLACEMENT PARTS Replacement parts may be ordered throughA O Smith dealers authorized servicers or distributors Refer to the Yellow Pages for where to call or contact ...

Page 14: ...over under opening and install 3 4 x 4 pipe nipple Drill or punch a 3 16 vent hole in handle Astainless steel screw is included with the Flo Jug kit This screw is to be installed in the vent hole when Flo Jug is not in use Remove drain valve from heater and insert a 3 4 x 4 nipple Connect and clamp 1 I D x 3 hose to Flo Jug and heater nipple 3 Lift the Flo Jug to the POUR POSITION and permit the U...

Page 15: ...ing the tank bottom This too can result in condensation Condensation appearing in the vent pipe water dripping from draft diverter during heater 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 pipe it may represent a normal condition However see RELIE...

Page 16: ... going to our website at www hotwater com Please click on Mail then click on Service and leave us a message Please be sure to provide the following information when writing or e mailing Model Number Serial Number Date of Original Purchase Date Problem Originated Explanation of Problem Also please be sure to include a daytime telephone number TROUBLESHOOTING Water heaters may exhibit problems that ...

Page 17: ...hermostat threads Leakage from other appliances or water lines Condensation of flue products Thermal expansion in closed water system Improperly seated valve High sulfate or mineral content in water supply or iron or sulfate reducing bacteria in water supply Turn switch to the ON position Plug blower back into 115 vac outlet Repair service to outlet Replace switch Replace control harness Replace b...

Page 18: ...essure switch tubing not connected blower was energized correctly 3 Air intake or exhaust obstructed Error in the hot surface ignitor circuit 1 Check that all wiring is correct and secure 2 Replace hot surface ignitor System in lockout 1 Gas supply is off or too low to operate 2 Hot surface ignitor not positioned correctly 3 Low voltage to the water heater 4 Electric polarity to unit is incorrect ...

Page 19: ...t the heater s and operational at all times The relief valve installed on the heater is not an acceptable method 4 SERVICE AND REPAIR EXPENSES Under the limited warranty the warrantor will provide only a replacement water heater or part thereof The owner is responsible for all other costs Such costs may include but are not limited to a Labor charges for service removal repair or reinstallation of ...

Page 20: ...20 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 REPLACEMENT PARTS ...

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