Table Of Contents; Introduction; Preparing For The Installation - A.O. Smith GPS-75 Instruction Manual

Residential gas water heaters gas models power vent gps-75 with hot surface ignition

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Table of Contents

SAFE INSTALLATION, USE AND SERVICE.................................. 2

GENERAL SAFETY..................................................................... 3-4

TABLE OF CONTENTS .................................................................. 5

INTRODUCTION ............................................................................ 5

Preparing for the Installation ................................................... 5

INSTALLATION REQUIREMENTS FOR THE

COMMONWEALTH OF MASSACHUSETTS ................................. 6

TYPICAL INSTALLATION ............................................................ 7-8

LOCATING THE NEW WATER HEATER .................................. 9-11

Facts to Consider About Location ...................................... 9-10

Insulation Blankets ................................................................ 10

Combustion Air and Ventilation for Appliances

Located in Unconfined Spaces ............................................. 10

Combustion Air and Ventilation for Appliances

Located in Confined Spaces ............................................ 10-11

INSTALLING THE WATER HEATER ....................................... 12-22

Chemical Vapor Corrosion .................................................... 12

Water Piping .................................................................... 12-13

Closed Water Systems ......................................................... 12

Thermal Expansion ............................................................... 12

Temperature-Pressure Relief Valve ...................................... 13

Gas Piping ............................................................................ 14

Sediment Traps (Drip Legs) .................................................. 15

Filling the Water Heater ........................................................ 15

Venting .................................................................................. 15

Vent Pipe Termination ...................................................... 15-16

Planning the Vent System ................................................ 16-17

Condensate........................................................................... 17

Blower Assembly Installation ........................................... 17-18

thank You for purchasing this water heater. Properly installed and

maintained, it should give you years of trouble free service.

Abbreviations Found In This Instruction Manual:

• ANSI - American National Standards Institute

• NFPA - National Fire Protection Association

• ASME - American Society of Mechanical Engineers

• GAMA - Gas Appliance Manufacturer's Association

• UL - Underwriters Laboratories Inc.

This gas-fired water heater is design certified by Underwriters

Laboratories Inc. under American National Standard for Gas Water

Heaters ANSI Z21.10.3 (current edition).

preparInG for the InstallatIon

1. Read the "General Safety" section, page 3 and 4 of this manual first

and then the entire manual carefully. If you don't follow the safety

rules, the water heater will not operate properly. It could cause

DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.

This manual contains instructions for the installation, operation, and

maintenance of the gas-fired water heater. It also contains warnings

throughout the manual that you must read and be aware of. All warnings

and all instructions are essential to the proper operation of the water

heater and your safety. Since we cannot put everything on the first

few pages, read the entIre Manual Before atteMptInG

to Install or operate the water heater.

2. The installation must conform with these instructions and the local

code authority having jurisdiction. In the absence of local codes,

LIGHTING & OPERATING LABEL ............................................... 23

TEMPERATURE REGULATION .................................................. 24

FOR YOUR INFORMATION ......................................................... 25

PERIODIC MAINTENANCE ....................................................26-28

LEAKAGE CHECKPOINTS .......................................................... 28

REPAIR PARTS ............................................................................ 29

TROUBLESHOOTING ............................................................30-32

WARRANTY ................................................................................. 35

IntroductIon

3. The water heater when installed must be grounded in accordance

4. If after reading this manual you have any questions or do not

5. Carefully plan the place where you are going to put the water

6. For California installation this water heater must be braced,

7. Massachusetts Code requires this water heater to be installed in

8. Complies with SCAQMD rule #1146 and districts having equivalent

Installation of Vent System...............................................18-21

Vent Pipe Preparation ......................................................21-22

Start Up Conditions

Smoke/Odor .................................................................. 25

Thermal Expansion ....................................................... 25

Strange Sounds ............................................................ 25

Operational Conditions ......................................................... 25

Smelly Water ................................................................. 25

"Air" in Hot Water Faucets ............................................. 25

High Temperature Shut Off System ............................... 25

Venting System Inspection.................................................... 26

Burner Operation and Inspection .......................................... 26

Burner Cleaning .................................................................... 26

Housekeeping ..................................................................26-27

Anode Rod Inspection........................................................... 27

Temperature-Pressure Relief Valve Operation ..................... 27

Draining................................................................................. 27

Service .................................................................................. 28

installations should comply with the National Fuel Gas Code (ANSI

Z223.1/NFPA 54) and the National Electrical Code (NFPA 70).

These publications are available from The National Fire Protection

Association, 1 Batterymarch Park, Quincy, MA 02269.

with the local codes, or in the absence of local codes: the National

Electrical Code (NFPA 70).

understand any portion of the instructions, call the local gas utility

or the manufacturer whose name appears on the rating plate.

heater. Correct combustion, vent action, and vent pipe installation

are very important in preventing death from possible carbon

monoxide poisoning and fires, see Figures 1 and 2.

Examine the location to ensure the water heater complies with

the "Locating the New Water Heater" section in this manual.

anchored, or strapped to avoid falling or moving during an

earthquake. See instructions for correct installation procedures.

Instructions may be obtained from California Office of the State

Architect, 400 P Street, Sacramento, CA 95814.

accordance with Massachusetts 248-CMR 2.00: State Plumbing

Code and 248-CMR 5.00. For more information see next page.

NOx requirements.

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