A.O. Smith BTP-140-140 Installation And Operation Manual
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A.O. Smith BTP-140-140 Installation And Operation Manual

A.O. Smith BTP-140-140 Installation And Operation Manual

A.o.smith gas water heaters btp-140-140, thru 600-2500 btpd, btpn, cof, cobt
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MODELS BTP-140-140 thru 600-2500
INCLUDING BTPD/BTPN/COF & COBT
COMMERCIAL GAS, OIL AND GAS/OIL TANK-TYPE WATER HEATERS
•
INSTALLATION
CONSERVATIONIST
ASME
Water heaters for propane gas are different from natural gas models. A natural gas heater will not function
safely on propane gas and no attempt should be made to convert a heater from natural gas to propane gas.
Propane gas must be used with great caution. It is highly explosive and heavier than air. It collects first in the
low areas making its odor difficult to detect. If propane gas is present or even suspected, do not attempt to
find the cause yourself. Ventilate the room, then call your gas supplier or service agent. Keep area clear until
a service agent has been called.
PRINTED IN U.S.A. 3882 1100
•
OPERATION
•
SERVICE
WARNING – PROPANE MODEL
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND
NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE
•
MAINTENANCE
®
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE READ THOUROUGHLY BEFORE USING
APPLIANCE.
A DIVISION OF A.O. SMITH CORPORATION
RENTON, WASHINGTON
www.hotwater.com
1
•
LIMITED WARRANTY
CAUTION
PART NO. 60047-008 REV.6
SUPERSEDES 60047-008 REV.5

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Summary of Contents for A.O. Smith BTP-140-140

  • Page 1 INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ THOUROUGHLY BEFORE USING APPLIANCE. WARNING – PROPANE MODEL NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE • LIMITED WARRANTY CAUTION A DIVISION OF A.O. SMITH CORPORATION RENTON, WASHINGTON www.hotwater.com PART NO. 60047-008 REV.6 SUPERSEDES 60047-008 REV.5...

  • Page 2: Table Of Contents

    This manual is intended to be used in conjunction with other literature provided with the heater. This includes power burner and related gas control information. It is important that this manual and the additional publications be reviewed in their entirety before beginning any work.

  • Page 3: General Safety Information

    HIGH ALTITUDE INSTALLATIONS Your A.O. Smith water heater has been designed to operate at altitudes above 2000 feet, provided that requirement was specified at the time of order. The firing rate will be specified on the water...

  • Page 4: Features

    Note: Some gas utility companies derate the heating value of the supplied gas at high elevations. Your authorized A.O. Smith Start- Up Agent must adjust for actual heating valve of the gas at the time of start-up. FEATURES WATER TEMPERATURE CONTROL...

  • Page 5: Locating The Heater

    The latest version of the National Electrical Code, NFPA No. 70. In Canada refer to Canadian Electrical Code C 22.1, from National Fire Protection Association, 1 Batterymarch Park, Quicy, MA 02269-9101. LOCATING THE HEATER When installing the heater, consideration must be given to proper location.

  • Page 6: Thermal Expansion (Closed System)

    Dampers or other obstructions must not be installed between the heater and the barometric draft control assembly. Barometric draft control counterweights can be adjusted for installation conditions by an authorized A.O. Smith Start-Up Agent. Any readjustment must be by authorized A.O. Smith Start-Up agent.

  • Page 7: Water Line Connections

    TABLE 2 CAPACITY OF PIPE - NATURAL GAS IN CUBIC FEET PER HOUR Maximum Based Upon Pressure Drop of 0.3” w.c. and Specific Gravity of 0.60 and Maximum Gas Pressure of .5 psig. Pipe Length In Feet 1 1/4 1 1/2 1050 1600 1100...

  • Page 8: Purging

    TABLE 3 EQUIVALENT LENGTH OF FITTINGS IN FEET Pipe Size (IPS) 1.25 1.5 Std. Tee through side 5.5 9.0 12.0 14.0 17.0 22.0 Std. E11 45°F E11 Plug Cock WARNING THE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER THAN 13.8” WATER COLUMN (1/2 POUND PER SQUARE INCH) SUPPLY GAS PRESSURE.
  • Page 9 TYPICAL WIRE DIAGRAM BTP, 270 - 2,500 KBTUH COF, 800 - 2,500 KBTUH COBT, 400 - 2,500 KBTUH TYPICAL WIRE DIAGRAM BTP, 140 - 255 KBTUH...
  • Page 10 TYPICAL WIRE DIAGRAM COBT, 140 - 300 KBTUH TYPICAL WIRE DIAGRAM COF, 140 - 720 KBTUH...

  • Page 11: Two Unit Manifold Installation

    Operation of the units covered by this manual by other than an A.O. Smith Authorized BTP/BTPN/COF/COBT Start-Up Agent will void the warranty. If you have not already done so, contact your local A.O. Smith Sales Representative or Authorized BTP/BTPN/COF/COBT Start- Up Agent and set-up a date for the start-up service.

  • Page 12: Maintenance

    3. The correct test instruments are: • indicator or 0 analyzer • CO indicator • Stack thermometer • Draft gauge or inclined manometer • U-tube manometer or calibrated 0-10” and 0-35” w.c. pressure gauge • Combination volt/ammeter. Suggested safety device test procedures are: A.

  • Page 13: Lime Scale Removal

    Lime accumulation not only reduces the life of the equipment but also reduces efficiency of the heater and increases fuel consumption. The usage of water softening equipment greatly reduces the hardness of the water. However, this equipment does not always remove all of the hardness (lime).

  • Page 14: Cleaning Flues-Cof & Cobt Only

    BURNER AIR OPENINGS OR VENTILATION GRILLES FOR COMBUSTION AIR. REMOVE LINT ACCUMULATION FROM AIR INTAKE GRILL. At least annually, contact a qualified service agency for burner cleaning and other routine maintenance. CLEANING FLUES-COF & COBT ONLY The following describes how to gain access to the tank flues for cleaning if necessary.

  • Page 15: Replacement Parts

    WATER HEATER MAKES NOISE 1. Sediment or lime scale accumulations cause noises when the heater is operating. • The sounds are normal, however, the tank bottom should be cleaned. Refer to MAINTENANCE for details. 2. Some of the electrical components of the water heater make sounds, which are normal.

  • Page 16: Limited Warranty

    To activate your warranty, contact your local sales representative or Authorized Start-up Agent to arrange for a FREE Certified Start-up. A.O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. 1. THE TANK 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 after initial installation, the warrantor will at its option, provide a replacement A.

This manual is also suitable for:

BtpnCobtCofBtpd-85Btpn-140Btp-140 ... Show all

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