A.O. Smith BTF-75 Installation And Operation Manual Download Page 1

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PRINTED IN U.S.A. 0901

PART NO. 194643-000

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 INSTALLING AND USING THIS
APPLIANCE.

A DIVISION OF A.O. SMITH CORPORATION

McBee, South Carolina U.S.A.

Stratford, Ontario Canada

www.hotwater.com

KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE

WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

® SmartValve is a Registered Trademark of Honeywell Inc.

MODEL BTF-75

with Hot Surface Ignition & SmartValve

COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER

•

SAFETY

•

INSTALLATION

•

OPERATION

•

MAINTENANCE

•

LIMITED WARRANTY

Summary of Contents for BTF-75

Page 1: ...Y BEFORE INSTALLING AND USING THIS APPLIANCE A DIVISION OF A O SMITH CORPORATION McBee South Carolina U S A Stratford Ontario Canada www hotwater com KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR F...

Page 2: ...tions and the local code authority having jurisdiction In the absence of local codes the installation must comply with the latest editions of the National Fuel Gas Code ANSI Z223 1 NFPA 54 The NFPA Th...

Page 3: ...ral 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 LP gas must be used with great caution It is highly...

Page 4: ...in before operating Please refer to manufacturer s instructions DISHWASHING MACHINE REQUIREMENT These appliances meet the National Sanitation Foundation Standard for sanitary installations when used w...

Page 5: ...60 75 percent for metal grills or louvers UNCONFINED SPACE In buildings of conventional frame brick or stone construction unconfined spaces may provide adequate air for combustion ventilation and dil...

Page 6: ...TINGMUSTBEFOLLOWED TOAVOIDCHOKEDCOMBUSTIONORRECIRCULATIONOFFLUEGASES SUCH CONDITIONS CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION NEVEROPERATETHEHEATERUNLESSITISVENTED TOTHEOUTDOORSANDHASADEQUATEAI...

Page 7: ...ceed the thirty 30 equivalent feet of 3 inch pipe or eighty five 85 equivalent feet of 4 inch pipe 3 The blower discharge adapter is made to accept only straight sections of 3 pipe To start a minimum...

Page 8: ...ow be positioned on the outside wall using the drilled hole as a centering point for the template 3 A MASONRYSIDEWALLS Chisel an opening approximately one half inch larger than the marked circle B WOO...

Page 9: ...tions are not reversed when making these connections See Figure 7 G Replace side panel and secure with two screws 5 The blower discharge adapter is made to accept only straight sections of 3 pipe To s...

Page 10: ...run All piping and fittings must be joined by the proper procedures as described under VENTPIPEPREPARATION IMPORTANT The vent system must terminate so that proper clearances are maintained as cited i...

Page 11: ...f the joint Tapered fitting sockets are designed so that an interference fit should occur when the pipe is inserted about 1 3 to 2 3 of the way into the socket Occasionally when pipe fitting dimension...

Page 12: ...e sparingly and only to the male threads of pipe joints Do not apply compound to the first two threads Use compounds resistant to the action of liquefied petroleum gases Do not use teflon tape on ther...

Page 13: ...ly counterclockwise until it stops 4 This appliance is equipped with a device which automatically lights the burner DONOTTRYTOLIGHTTHEBURNERBYHAND 5 Wait five 5 minutes to clear out any gas If you the...

Page 14: ...atures produced at various thermostat dial settings Short repeated heating cycles caused by small hot water uses can cause temperatures at the point of use to exceed the thermostat setting by up to 20...

Page 15: ...n etc For safety and satisfactory operation it is recommended that the heater be checked once a year by a competent service person T P VALVE At least once a year the temperature and pressure relief va...

Page 16: ...e service you received First please contact your dealer or the A O Smith authorized service agent in your area and explain to them why you are not satisfied This will usually correct the problem If af...

Page 17: ...ch Replace control harness Replace blower and motor Replace switch Check for low voltage less than 102 vac have service checked and repaired If voltage is above 102 vac make sure there is not more tha...

Page 18: ...connectors 3 System wiring harness in good condition and securely connected at both ends Not Applicable 1 Replace control 1 Airflow proving switch stuck closed 2 Airflow proving switch mis wired or ju...

Page 19: ...E AT HSI ELEMENT OUTPUT SEE INSET B 120V NOMINAL CHECK DAMAGED OR BROKEN HSI ELEMENT WARNING Line Voltage Hazard Can cause property damage severe injury or death Only a trained experienced service tec...

Page 20: ...all other costs Such costs may include but are not limited to a Labor charges for service removal repair or reinstallation of the water heater or any component part b Shipping delivery handling and a...

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A.O. Smith BTF-75, Installation And Operation Manual

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