A.O. Smith FPSE-75 User Manual

1
PRINTED IN U.S.A. 2585 400 PART NO. 194219-000
GAS MODELS
FPSE - 75
with Hot Surface Ignition
and SmartValve
®
Thank you for buying this energy efficient water heater from A.O.
Smith Water Products Company. We appreciate your
confidence in our products.
You should thoroughly read this manual before installation and/
or operation of this water heater. Please pay particular attention
to the important safety and operating instructions as well as
the WARNING and CAUTIONS.
CAUTION
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE READ THOROUGHLY BEFORE
INSTALLING AND USING THIS APPLIANCE.
RESIDENTIAL GAS WATER HEATERS
OWNER'S MANUAL
A DIVISION OF A.O. SMITH CORPORATION
McBee, South Carolina U.S.A.
www.hotwater.com
GET TO KNOW YOUR WATER HEATER 2
GENERAL SAFETY INFORMATION 3-4
INSTALLATION 4 -12
OPERATION 12 -14
MAINTENANCE AND
TROUBLESHOOTING 14 -17
TROUBLESHOOTING WITH THE LED 18
SMARTVALVE
®
TROUBLESHOOTING GUIDE 19
WARRANTY 20
TABLE OF CONTENTS
PAGE
KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
® SmartValve is a Registered Trademark of Honeywell Inc.

A.O. Smith FPSE-75 Specifications

General

Model	FPSE-75
Power Source	Electric
Type	Point-of-Use
Height	62.5 Inches
Diameter	26.75 Inches
Tank Capacity	75 Gallons
Voltage	240V
Thermostat	Adjustable
Capacity	75 gallons
Weight	230 lbs
Warranty	10 years

Summary

General Safety Information

Chemical Vapor Corrosion

Risks associated with corrosive chemical vapors affecting the unit.

Improper Combustion

Hazards from improper ventilation and combustion air supply.

Liquid Petroleum Models

Specific safety warnings for propane or LPG models.

Installation

Location of Heater

Guidelines for selecting an appropriate installation location.

Confined Space

Gas Connections

Guidelines for connecting the natural gas supply.

Connection of Gas Pipe

Relief Valve

Requirements for installing and checking the temperature and pressure relief valve.

Making the Joint

Joint Assembly and Preparation

Operation

Temperature Regulation

How to adjust and understand water temperature settings.

For Your Safety Read Before Operating

Operating Instructions

To Operate the Heater

To Turn Off Gas to Appliance

Maintenance

Main Burner

High Temperature Limit Switch

T & P Valve

Service and Repair

Troubleshooting

Not Enough or No Hot Water

Diagnosing and resolving issues with insufficient hot water supply.

Vent Pipe Too Hot (Above 170° F)

Yellow Flame

Water Leaks

Identifying and fixing sources of water leaks from the unit.

Leaking T&P Valve

Troubleshooting a leaking temperature and pressure relief valve.

Hot Water Odors or Color

Troubleshooting with the LED

LED Status Codes

Explains the meaning of various LED flash codes for diagnostics.

SmartValve Control Troubleshooting Guide

Voltage and Control Checks

Verifying voltage, control harness, igniter, and burner operation.