A.O. Smith BTI 120 warranty Foreword, Table of Contents

Page 3

TABLE OF CONTENTS

 

 

Page

ROUGH-IN-DIMENSIONS

2

FOREWORD

3

GENERAL SAFETY INFORMATION

4

Precautions

4

Grounding Instructions

4

Chemical Vapor Corrosion

4

Improper Combustion

4

Liquid Petroleum Models

4

Extended non-use

4

Insulation Blankets

4-5

High Altitude Installation

5

FEATURES

5

The Eliminator (Self-Cleaning System)

5

High Limit Switch

5

Electronic Ignition Control

5

Exhaust Inducer (Blower Assy.)

6

Circulating Pump

6

Dishwashing Machine Requirement

6

INSTALLATION INSTRUCTIONS

6

Required Ability

6

Uncrating

6

Locating The Heater

6-7

Levelling

7

Clearances

7

Hard Water

7

Air Requirements

7-8

Venting

8

Multiple Heater Manifold

8

Technical Data Venting

9-10

Water Line Connections

11

Water (Potable) Heating and Space Heating

11

Thermometers (Not Supplied)

11

Relief Valve

11

Gas Piping

11-12

Purging

12

 

Page

Gas Pressure Regulator

12

Heater Wiring

13

INSTALLATION DIAGRAMS

14-20

MANIFOLDS

21

OPERATION

22

General

22

SEQUENCE OF OPERATION

23

Lighting and Operation

24

Water Temperature Control

25

PREVENTIVE MAINTENANCE

25

Check The Ignitor Assembly

25

Ignitor Assembly

25

Main Burner

25-26

Gas Valves

26

Checking The Input

26

Venting System

26

Remote Storage Tank Temperature Control

26

Relief Valve

26-27

Hot Water Odor

27

Anode Rod Inspection

27

Flushing

27

Draining

27

Recommended Procedure For Periodic

 

Removal of Lime Deposits From Tank Type

 

Commercial Water Heaters

27-28

Deliming Solvents

28

Tank Cleanout Procedures

28-29

Ignition Module System

29

System Diagnostics

29

SERVICE

29

Electrical Servicing

29

Replacement Parts

29

Sequence of Operation Flow Chart

30

Operational Checklist

31

Limited Warranty

32

FOREWORD

These designs comply with ANSI Z21.10.3 as an automatic circulating or automatic storage tank type water heater.

BTI 366 and BTI 400 also comply with ANSI Z21.10.3 as an automatic instantaneous type heater.

Detailed installation diagrams are found in this manual. These diagrams will serve to provide the installer with a reference for the materials and methods of piping necessary. It is highly essential that all water, gas piping and wiring be installed as shown on the diagrams.

Particular attention should be given to the installation of thermometers at the locations indicated on the diagrams as these are necessary for checking the proper functioning of the heater.

The heater is designed to operate on natural or propane gases. HOWEVER, MAKE SURE the gas on which the heater will operate

is the same as that specified on the heater model and rating plate.

These heaters may be installed on combustible floors.

In addition to these instructions, the equipment shall be installed in accordance with those installation regulations in force in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction should be consulted before installations are made.

The installation must conform to these instructions 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 and the National Electrical Code, NFPA 70, documents are available from the National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.

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Contents Commercial GAS, GLASS-LINED, TANK-TYPE Water Heater Models BTI 120 Thru 400/AROUGH-IN-DIMENSIONS Front View TOP View Back View ROUGH-IN-DIMENSIONSGasand Electrical Characteristics Foreword Table of ContentsGeneral Safety Information Features High Altitude InstallationsHigh Limit Switch Dishwashing Machine Requirement Electronic Ignition ControlExhaust Inducer Blower Assy Circulating PumpAIR Requirements LevelingClearances Hard WaterMultiple Heater Manifold VentingType B GAS Vent Model BTI-120Model BTI-154 Model BTI-250 Model BTI-275Model BTI-310 System Connections Water Line ConnectionsWater Potable Heating and Space GAS PipingType of GAS GAS Piping and Dirt LEG InstallationGAS Pressure Regulator GAS Meter Size Natural Gases onlySingle Unit Wiring Diagram BTI-120 Through 400A Heater WiringCode Restrictions Installation DIAGRAMS-TOP INLET/OUTLET UsageTube Inlet Installation GeneralHorizontal Storage Tank and Forced Circulation Vertical Storage Tank and Forced CirculationPage Circulating Return Line Connection Installation DIAGRAMS-SIDE INLET/OUTLET UsageHeater with Mixing Valve and Recirculated Sanitizing Loop TWO PRE-HEATERS with Booster Heater Horizontal Storage Tank Manifold Kits Model Dimension aOperation Sequence of Operation What to do if YOU Smell GAS For Your Safety Read Before OperatingIgnitor Assembly Preventive MaintenanceWater Temperature Control Check the Ignitor AssemblyVenting System Remote Storage Tank Temperature ControlGAS Valves Checking the InputDraining HOT Water OdorAnode ROD Inspection FlushingTank Cleanout Procedure Deliming Using FLO-JUG MethodDeliming Solvents Ignition Module System ServiceReplacement Parts System DiagnosticsYES Sequence of Operation Flow ChartOperational Checklist Complaint Cause User ServicemanRemedy Tank Service and Repair ExpensesClaim Procedure Keepthiswarrantypostedadjacenttotheheaterforfuturereference

BTI 120 specifications

The A.O. Smith BTI 120 is a highly efficient and reliable commercial water heater designed to meet the demanding hot water requirements of larger businesses and institutions. As part of A.O. Smith's BTI series, this model is engineered for performance, durability, and energy efficiency, making it an excellent choice for various commercial applications.

One of the standout features of the BTI 120 is its impressive heating capacity. With a maximum output of 120 gallons per hour, it is well-suited for establishments such as restaurants, hotels, and hospitals, where high volumes of hot water are required to ensure smooth operations. The unit is designed with a robust tank that can accommodate up to 120 gallons of hot water at any given time, ensuring that there is always hot water available for use.

In terms of technology, the A.O. Smith BTI 120 incorporates advanced control systems that allow for precise temperature management. The digital display and control panels provide real-time monitoring of the water temperature, ensuring that it meets the specific needs of the business. Additionally, the system features built-in safety controls to prevent overheating and maintain optimal performance, thereby ensuring safety and efficiency.

Energy efficiency is another critical characteristic of the BTI 120. The unit is designed to minimize energy consumption while maximizing heating efficiency. This is achieved through features such as high-quality insulation and the use of advanced heating elements that deliver hot water more quickly and with less energy wastage. As a result, businesses can benefit from lower operating costs and reduced environmental impact.

Durability is a key aspect of the BTI 120, as it is constructed with high-grade materials that are resistant to corrosion and wear. This ensures a long service life and reduces the need for frequent maintenance and replacements. Furthermore, the unit is designed to operate in various environments and withstand the rigors of continuous use.

In summary, the A.O. Smith BTI 120 is a top-tier commercial water heater that combines performance, efficiency, and durability. With its high heating capacity, advanced control systems, energy-saving features, and robust construction, it is an ideal solution for any business requiring a reliable hot water supply. Choosing the BTI 120 means investing in a product that can enhance operational efficiency and contribute to long-term cost savings.