A.O. Smith BTR 151 Instruction Manual
  1. Manuals
  2. Brands
  3. A.O. Smith Manuals
  4. Water Heater
  5. BTC 201
  6. Instruction manual
A.O. Smith BTR 151 Instruction Manual

A.O. Smith BTR 151 Instruction Manual

Commercial gas water heaters
Hide thumbs
Table of Contents

Advertisement

Quick Links

500 Tennessee Waltz Parkway
Ashland City, TN 37015
Low Lead Content
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do
not use any phone in your building.
•
Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
•
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
Thank you for buying this energy efficient water heater.
We appreciate your confidence in our products.
place these instructions adjacent to heater and notify owner to keep for future reference.
PRINTED 0912
commercial gas water heaters

instruction manual

models Btr(c) 151, Btr(c) 201
installation - operation - serVice
- maintenance - limited warranty
Read and understand this instruction
manual and the safety messages
herein before installing, operating or
servicing this water heater.
Failure to follow these instructions and
safety messages could result in death
or serious injury.
This manual must remain with the
water heater.
series 100/101
196308-002

Advertisement

Table of Contents
loading

Related Manuals for A.O. Smith BTR 151

Summary of Contents for A.O. Smith BTR 151

  • Page 1: Instruction Manual

    instruction manual commercial gas water heaters models Btr(c) 151, Btr(c) 201 series 100/101 installation - operation - serVice - maintenance - limited warranty 500 Tennessee Waltz Parkway Ashland City, TN 37015 Low Lead Content WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.

  • Page 2: Table Of Contents

    taBle of contents sAFE INsTAllATIoN, UsE AND sERVICE.......... 3 Outdoor Air Through Two Vertical Ducts .......... 17 APPRoVAls ..................3 Air From Other Indoor Spaces ............17 GENERAl sAFETy INFoRMATIoN ............4 Technical Data Venting ..............18 Precautions ..................5 WATER hEATER INsTAllATIoN ............

  • Page 3: Safe Installation, Use And Service

    safe installation, use and serVice The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard.

  • Page 4: General Safety Information

    general safety information Fire or Explosion Hazard Fire Hazard Do not store or use gasoline or other flammable vapors and For continued protection against liquids in the vicinity of this or any other appliance. risk of fire: Avoid all ignition sources if you smell gas. Do not install water heater on Do not expose water heater controls to excessive gas carpeted floor.

  • Page 5: Precautions

    general safety information Read and understand this instruction Explosion Hazard manual and the safety messages herein before installing, operating or servicing this water heater. Overheated water can cause water tank explosion. Failure to follow these instructions and safety messages could result in death Properly sized temperature and or serious injury.

  • Page 6: Introduction

    introduction preparing for the installation Thank You for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service. 1. Read the “general Safety” section, page 4 of this manual first and then the entire manual carefully. If you don’t follow aBBreViations used the safety rules, the water heater will not operate properly.

  • Page 7: Features And Components

    features and components the eliminator (self-cleaning system) electronic ignition control These units include The Eliminator (Self-Cleaning System) Each heater is equipped with an ignition control. The solid state installed in the front water inlet, See Figure 1. The Eliminator inlet ignition control (Figure 3), ignites the main burner by utilizing a tube can only be used in the front water inlet connection.

  • Page 8: Installation Considerations

    installation considerations rough in dimensions figure 5. TABLE 1. HEATER PERFORMANCE DATA (Recovery ratings based on 80% thermal efficiency) recoVery rating capacities (gph) at temperature rise shown input approx. approx. model rate tank 20°f 30°f 40°f 50°f 60°f 70°f 80°f 90°f 100°f °f...

  • Page 9: Locating The Water Heater

    installation considerations locating the water heater IS nOT SuBJECT TO PHYSICAL DAMAgE BY A MOVIng VEHICLE. CAUTION flammaBle items, PREssURIZED CoNTAINERs oR ANy oThER PoTENTIAl FIRE hAZARDoUs ARTIClEs MUsT Property Damage Hazard nEVER BE PLACED On OR ADJACEnT TO THE HEATER. OPEn COnTAInERS OR FLAMMABLE MATERIAL SHOuLD nOT BE STORED OR uSED In THE SAME ROOM WITH THE •...

  • Page 10: Installation On Combustible Flooring

    insulation Blanket Breathing Hazard - Carbon Monoxide Gas Do not obstruct water heater air intake with insulating blanket. Gas and carbon monoxide detectors are available. Install water heater in accordance with the instruction manual. Breathing carbon monoxide can cause brain damage or death.

  • Page 11: High Altitude Installations

    See the Circulation Pump Wiring Diagrams (Figure 8, Figure 9) in this manual for electrical hookup information. Install in accordance with the current edition of the national Electrical Code, nFPA 70 or the Canadian Electrical Code, CSA C22.1. Breathing Hazard - Carbon Monoxide Gas All-bronze or stainless steel circulating pumps are recommended for use with commercial water heaters.

  • Page 12: Installation Requirements

    installation reQuirements gas supply systems 5. When installing multiple water heaters in the same gas supply system it is recommended that individual positive lock-up gas Low pressure building gas supply systems are defined as those pressure regulators be installed at each unit. systems that cannot under any circumstances exceed 14”...

  • Page 13: Dishwashing Machines

    A properly sized thermal expansion tank must be installed on all closed systems to control the harmful effects of thermal HOT WATER expansion. Contact a local plumbing service agency to have a OUTLET thermal expansion tank installed. See Water Line Connections on page 19 and the Water Piping 12”...

  • Page 14: Contaminated Air

    no valve or other obstruction is to be placed between the If you do not understand these instructions or have any questions Temperature-Pressure Relief Valve and the tank. Do not connect regarding the Temperature-Pressure Relief Valve call the toll free discharge piping directly to the drain unless a 6”...

  • Page 15: Unconfined Space

    never obstruct the flow of ventilation air. If you have any doubts for the openings is dependent on the method used to provide or questions at all, call your gas supplier. Failure to provide the fresh air to the confined space AnD the total Btu/hr input proper amount of combustion air can result in a fire or explosion rating of all appliances installed in the space.

  • Page 16: Multiple Heater Manifold

    outdoor air through one opening vent with an oil burning furnace, the vent pipe should enter the smaller common vent or chimney at a point above the large vent pipe. multiple heater manifold Figure 12 and Table 6 should be used for horizontally manifolding two or more heaters.

  • Page 17: Outdoor Air Through Two Vertical Ducts

    outdoor air through two Vertical ducts When ducts are used, they shall be of the same cross sectional area as the free area of the openings to which they connect. The illustrations shown in this section of the manual are a The minimum dimension of rectangular air ducts shall be not less reference for the openings that provide fresh air into confined than 3 inches.

  • Page 18: Technical Data Venting

    technical data Venting taBle 6. technical data Venting type B gas Vent multiple gas fired tank-type heaters When venting multiple tank type heaters using Type B vent pipe, follow the installation diagram (Figure 12) and tables below which give sizing and data based upon nFPA 54/AnSI Z223.

  • Page 19: Water Heater Installation

    water heater installation water line connections remote storage tank that may be installed and piped to a water heating appliance must also have its own properly The water piping installation must conform to these instructions sized, rated and approved Temperature-Pressure Relief and to all local code authority having jurisdiction.

  • Page 20: Installation Diagrams - Top Inlet/Outlet Usage

    installation diagrams - top inlet/outlet usage temperature setting should not exceed safe use temperature at fixtures. see water temperature use of the top inlet water connection requires an inlet dip tube control and mixing ValVe warning on page 12. if (refer to Figure 18).

  • Page 21: Heater Wiring

    heater wiring All electrical work must be installed in accordance with the latest version of the national Electrical Code AnSI/nFPA no. 70 and must conform to all local code authority having jurisdiction. An ELECTRICAL gROunD IS REQuIRED TO REDuCE RISK OF ELECTRICAL SHOCK OR POSSIBLE ELECTROCuTIOn.

  • Page 22: Gas Piping

    gas piping two threads. use compounds resistant to the action of liquefied petroleum gases. Contact your local gas service company to ensure that adequate gas service is available and to review applicable installation gas meter siZe – natural gases only codes for your area.

  • Page 23: Start Up

    start up prior to start up initial start up Installation and start up of this water heater requires abilities required test equipment and skills equivalent to that of a licensed tradesman in the field u-tube manometer, pressure gauge, or digital manometer. involved, see Qualifications on page 6.

  • Page 24: Checking Venting

    on multiple water heater installations the supply gas line regulators checking the input shall be adjusted to provide gas pressure to each water heater For appliance installation locations with elevations above 2000 within the minimum and maximum supply pressure requirements feet, refer to HIgH ALTITuDE InSTALLATIOnS section of this listed in Table 3 on page 8 with all gas fired appliances connected manual for input reduction procedure.

  • Page 25: Sequence Of Operation

    seQuence of operation 10. From the time the gas Valve opens, the Ignition Control Board waits The following information will describe the Sequence of Operation 3 seconds and then shuts off power to the Silicon nitride Igniter. for this appliance. 11.

  • Page 26: Sequence Of Operation Flow Chart

    seQuence of operation flow chart Description of this flow chart can be found in the “SEQuEnCE OF OPERATIOn” section found on page 25. figure 23.

  • Page 27: Maintenance

    maintenance check the igniter assemBly and main Burners If the storage tank temperature control is out of calibration, replace with new control. At least once a year, check the igniter assembly, Figure 24, and shoUlD oVERhEATING oCCUR oR ThE GAs sUPPly FAIl the main burner, Figure 25, for proper operation.

  • Page 28: Hot Water Odor

    draining and flushing Explosion Hazard Burn harzard. Temperature-Pressure Relief Valve Hot water discharge. must comply with ANSI Z21.22- CSA 4.4 and ASME code. Keep hands clear of drain Properly sized temperature- valve discharge. pressure relief valve must be installed in opening provided. Can result in overheating and It is recommended that the water heater storage tank be drained excessive tank pressure.

  • Page 29: Deliming Solvents

    tank cleanout procedure Lime accumulation not only reduces the life of equipment but also reduces efficiency of the heater and increases fuel consumption. The following practices will ensure longer life and enable the The usage of water softening equipment greatly reduces the hardness unit to operate at its designed efficiency: of the water.
  • Page 30 threads. Tighten firmly by hand and use wrench or adjustable pliers to check for secure connection. Do not over tighten to avoid damage to threads and fittings. Chemical Hazard Prepare the Up-N-Down Transfer Kit The next step is the preparation on the Up-N-Down Transfer Kit, •...

  • Page 31: Service

    serVice The installer may be able to observe and correct certain problems TABLE 8: which may arise when the unit is put into operation. HOWEVER, it is recommended that only qualified service agents, using 1 FlAsh System lockout (retries or cycles exceeded) appropriate test equipment, be allowed to service the heater.

  • Page 32: For Your Information

    for your information start up conditions A sulfate reducing bacteria which has accumulated within the water heater (this harmless bacteria is smoke/odor nontoxic to humans). It is not uncommon to experience a small amount of smoke and An excess of active hydrogen in the tank. This is caused odor during the initial start-up.

  • Page 33: Troubleshooting

    trouBleshooting remedy complaint cause user Qualified serVice agency set thermostat dial to a higher Thermostat set too low. temperature *Water not hot enough Check continuity and resistance (Ohms) Upper and/or lower temperature Call qualified service agency of upper and lower temperature probes. probe out of calibration.

  • Page 34: Water Piping Diagrams

    water piping diagrams...
  • Page 44 STORAGE TANK...
  • Page 47 STORAGE TANK...

  • Page 49: Manifold Kits

    MANIFOLD KITS manifold kits TWO UNIT MANIFOLD KIT (PART NO. 9003426205) model dimensions "a" 151/201 45.0" THREE UNIT MANIFOLD KIT (PART NO. 9003427205) FOUR UNIT MANIFOLD KIT (PART NO. 9003428205)

  • Page 50: Limited Warranty

    limited warranty Limited Warranty A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. 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 THREE years after initial installation, the warrantor will supply a complete new A.

  • Page 51: Notes

    notes...
  • Page 52 www.hotwater.com 500 Tennessee Waltz Parkway, Ashland City, TN 37015 Tech Support: 800-527-1953 Parts: 800-433-2545 Copyright © 2012 A. O. Smith Water Heater Company, All rights reserved.

This manual is also suitable for:

Btr 201

Table of Contents