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RESIDENTIAL GAS, NON POWER VENTED, WATER HEATER
SERVICE HANDBOOK
State Water Heater Technical Training Department
© 2004 Ashland city, TN
1
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
Page
Service.....................................................10
Procedures and Conditions .....................11
Multiple Heater Piping..............................14
Exhaust Venting Notes ............................15
Flammable Vapor Ignition Design …….15
Lint, Dust & Oil Screen…………………16
Flame Arrestor…………………………..17
Thermal Cut Off Switch………………...18
Pilot Burner Assembly………………….19
Sealed Combustion Chamber…………20
Piezo Igniter……………………………..21
Technical Bulletins ……………….. 26
RESIDENTIAL GAS SERVICE HANDBOOK INTRODUCTION
This service handbook is designed to aid in servicing and troubleshooting State Non
Power Vented, Residential Gas water heaters in the field. No duplication or reproduction of this
book may be made without the express written authorization of the manufacturer.
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, non power vented, product line
and is not meant to be all-inclusive. If you are experiencing a problem not covered in this
handbook, please contact the State Water Heater Call Center at 1-800-365-0024 or your local
State Water Heater Service Representative for further assistance. Additional information is also
available on the web site www.Statewaterheaters.com
. This handbook contains supplemental
information to the Residential Gas installation instructional manual supplied with the water
heater.
Qualifications
This handbook is intended for use by licensed plumbing professionals and reference should be
made to the instructional manual accompanying the product.