Introduction; Qualifications - A.O. Smith BTH 120 Series Service Handbook

INTRODUCTION

The service handbook is designed to aid in servicing and troubleshooting A. O. Smith Cyclone Xi BTH
commercial water heaters in the field. No duplication or reproduction of this book may be made without the
express written authorization of the A. O. Smith Corporation.
The following text and illustrations will provide you with a step by step procedure to verify proper
installation, operation, and troubleshooting procedures. Additional quick reference data is included to assist
you in servicing these products.
The information contained in this handbook is designed to answer commonly faced situations encountered
in the operation of this product line and is not meant to be all inclusive. If you are experiencing a problem
not covered in this handbook, please contact A. O. Smith Technical Information at 1-800-527-1953, by
email at help@hotwater.com, or your local A. O. Smith Corporation representative for further assistance.
Our website at: http://www.hotwater.com is also a resource for installation and service information. This
handbook is intended for use by licensed plumbing professionals and reference should be made to the
instruction manual accompanying the product. This handbook contains supplemental information to the
product's instruction and operation manual.

QUALIFICATIONS

ANSI Z223.1 Sec 3.3.83
"Qualified Agency"
"Any individual, firm, corporation or company that either in person or through a representative is engaged
in and is responsible for (a) the installation, testing or replacement of gas piping or (b) the connection,
installation, testing, repair or servicing of appliances and equipment; that is experienced in such work; that
is familiar with all precautions required; and that has complied with all the requirements of the authority
having jurisdiction."
Service of this water heater requires ability equivalent to that of a Qualified Service Technician in the field
involved. Installation skills such as plumbing, air supply, venting, gas supply, electrical supply are required
in addition to electrical testing skills. Some products may require combustion testing equipment and
certification. If you do not possess these skills or do not have the proper tools you should not attempt to
service this water heater.
Servicing should only be performed by a Qualified Service Technician
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