A.O. Smith TC-049-R2 Service Handbook, Residential Gas And Electric Water Heater, Introduction

RESIDENTIAL GAS AND ELECTRIC WATER HEATER

SERVICE HANDBOOK

TABLE OF CONTENTS

	Page
Introduction
Terms	1
Tools	2
Residential Gas Water Heaters
Guidelines	3
Installation	5
Operations and Servicing
Construction	6
Control	6
Burner	7
Normal Operations	7
Temperature	8
Gas	8
Water Flow	9
Service	10
Procedures and Conditions	11
Multiple Heater Piping	14
Exhaust Venting Notes	15

	Page
Residential Electric continued
C-2 Circuit	21
C-2 Sequence of Operation	22
A-6 Circuit	23
A-6 Wiring Diagram	24
A-7	25
A-7 Wiring Diagram	27
Certification and Approvals	29
Simultaneous Dual Elements	30
C-2 Service	31
C-2 Voltage Checks	32
C-2 Grounded Element Check	34
A-6 Service	35
A-6 Element Test	35
A-6 Voltage Check	36
A-6 Grounded Element Test	38
A-7 Service	39
A-7 Element Test	40
A-7 Voltage Checks	41
A-7 Grounded Element Test	44
Miscellaneous Information	45

Residential Electric Water Heaters	A.O. Smith Technical Bulletins 46
Installation	16
Standard Illustrations	17
Guidelines	18
Elements	19
Thermostat	20

RESIDENTIAL GAS AND ELECTRIC HANDBOOK INTRODUCTION

This service handbook is designed to aid in servicing and troubleshooting A.O. Smith Residential Gas and Electric 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 Water Products Company.

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 this product.

The information contained in this handbook is designed to answer commonly faced situations encountered in the operation of the Residential Gas and Electric product line and is not meant to be all-inclusive. If you are experiencing a problem not covered in this handbook, please contact the A.O. Smith Technical Information Center at 1-800-527-1953 or your local A.O. Smith Water Products Company representative for further assistance. Additional information is also available on the web site www.hotwater.com. This handbook is intended for use by licensed plumbing professionals and reference should be made to the instructional manual accompanying the product. This handbook contains supplemental information to the Residential Gas and Electric instructional manual.

A.O. Smith Water Products Company	1	Training Department
©2002		Ashland City, Tennessee