A.O. Smith FPSE-75 Owner's Manual
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A.O. Smith FPSE-75 Owner's Manual

A.O. Smith FPSE-75 Owner's Manual

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

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Summary of Contents for A.O. Smith FPSE-75

  • Page 1 SMARTVALVE TROUBLESHOOTING GUIDE WARRANTY TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY. PLEASE INSTALLING AND USING THIS APPLIANCE. A DIVISION OF A.O. SMITH CORPORATION OWNER'S MANUAL FPSE - 75 and SmartValve ® TABLE OF CONTENTS PAGE...

  • Page 2: Get To Know Your Water Heater

    (see rating plate), quantity and name of part desired (as listed in fig. 1). Standard hardware items may be purchased locally. *CAUTION HARNESS HAS 120VAC. IN OPERATION FPSE-75 with Hot Surface Ignition & SmartValve VENT PIPE ANODE HOT WATER OUTLET...

  • Page 3: General Safety Information

    INSULATION BLANKETS Insulation blankets available to the general public for external use on gas water heaters are not necessary with A.O. Smith products. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters. Your A.O.

  • Page 4: Installation

    • Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference. • Do obtain new warning and instruction labels from A.O. Smith for placement on the blanket directly over the existing labels.
  • Page 5 CONFINED SPACE When drawing combustion and dilution air from inside a conventionally constructed building to a confined space, such a space shall be provided with two permanent openings. ONE WITHIN 12 INCHES OF THE ENCLOSURE TOP AND ONE WITHIN 12 INCHES OF THE ENCLOSURE BOTTOM. Each opening shall have a free area of one square inch per 1000 Btuh of the total input of all appliances in the enclosure, but not less than 100 square inches.

  • Page 6: Connection Of Gas Pipe

    WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION. All piping must comply with local codes and ordinances or with the National Fuel Gas Code (ANSI Z223.1 NFPA-54) whichever applies. REFER TO FIG. 1 FOR CONNECTION DETAILS. BEFORE ATTACHING THE GAS LINE BE SURE THAT ALL GAS PIPE IS CLEAN ON THE INSIDE.

  • Page 7: Planning The Vent System

    the heater. In addition the hourly Btu rated temperature steam discharge capacity of the relief valve shall not be less than the input rating of the heater. NO VALVE IS TO BE PLACED BETWEEN THE RELIEF VALVE AND TANK. DO NOT PLUG THE RELIEF VALVE.

  • Page 8: Installation Of Sidewall Vent System

    NOTE: 1. For water heaters in locations with high ambient temperatures (above 100°F) and/or insufficient dilution air, it is recommended that CPVC or ABS pipe and fittings be used. 2. The SUPPLIED VENT TERMINAL must be used in all cases. 4.
  • Page 9 3. Make sure that plastic tubing is still attached to the pressure switch and fan housing. Also make sure that wiring connector from motor to control box is securely attached. 4. Do not plug in power cord until vent system is completely installed.

  • Page 10: Installation Of Vent System, Sidewall

    and glued into the end of the elbow that will mount on the discharge adapter (see fig. 6). 6. An 1/8 inch bead of high temperature silicone should be applied to the circumference of the discharge adapter just before installing the first section of pipe or elbow. INSTALLATION OF VENT SYSTEM, SIDEWALL With the route of the venting system and selection of materials completed, as discussed in section of this manual titled...

  • Page 11: Selection Of Materials

    Know your own qualifications or those of your contractor. The solvent welding technique of joining PVC and CPVC pipe is a specialized skill just as any other pipe fitting technique. Closely supervise the installation and inspect the finished job before start-up. Contact the manufacturer, supplier, or competent consulting agency if you have any questions about the application or installation of PVC and CPVC pipe.

  • Page 12: Operation

    Apply primer to the surface of the pipe and fitting socket with a natural bristle brush (see chart). This process softens and prepares the PVC or CPVC for the solvent cementing step. Move quickly and without hesitation to the cementing procedure while the surfaces are still wet with primer.

  • Page 13: For Your Safety Read Before Operating

    FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. BEFORE OPERATING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES. A.

  • Page 14: Maintenance

    IF A SUITABLE AREA IS NOT AVAILABLE, A COVER SHOULD BE INSTALLED OVER THE THERMOSTAT TO PREVENT TAMPERING. Suitable covers are available through A.O. Smith Water Products Company, 5621 W. 115th Street, Alsip, IL 60803. It is recommended that lower water temperatures be used to avoid the risk of scalding.

  • Page 15: Power Venter Maintenance

    Repeat step C above. POWER VENTER MAINTENANCE The FPSE-75 must be inspected quarterly. Points of inspection are: 1. MOTOR - Motor must rotate freely. Oil every three months of operation with 4 drops of SAE 20 oil, see fig. 12.

  • Page 16: Troubleshooting

    Any work performed by authorized personnel may void the warranty. If you are having a problem with your A.O. Smith water heater and are not pleased with the service you received: • First, please contact your dealer or the A.O. Smith authorized service agent in your area and explain to them why you are not satisfied.
  • Page 17 Replace harness. Replace igniter. Reset cycle by turning switch off and then back on. If unit does not light in three trials, call an authorized A.O. Smith service representative. Verify dilution air openings are free of obstructions. Make sure there is no more than 30 equivalent feet of 3 inch pipe or 60 equivalent feet of 4 inch pipe.

  • Page 18: Troubleshooting With The Led

    TROUBLESHOOTING WITH THE LED LED STATUS No power to system control. Normal Operation BRITE - DM This indication shows whenever the system is powered, unless some abnormal event has occurred. 1 FLASH Setpoint error, internal failure detected. Airflow proving switch remains open longer than 30 seconds after a call for heat begins.

  • Page 19: Water Heater Control

    SV9560/SV9570 SMARTVALVE START • TURN OFF GAS SUPPLY • ASSURE APPLIANCE SWITCH IS IN "ON" POSITION • DISCONNECT SYSTEM CONTROL HARNESS CHECK FOR PROPER VOLTAGE AT CONTROL HARNESS (SEE INSET A). VOLTAGE SHOULD BE 120V BETWEEN 120V COMMON AND 120V HOT. TURN ON GAS SUPPLY PLUG ®...

  • Page 20: Limited Residential Gas Warranty

    LIMITED RESIDENTIAL GAS WARRANTY THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY. If the glass lined tank in this water heater shall prove upon examination by A. O. Smith Corporation (the warrantor) to have leaked during the warranty period in normal residential use, due to natural corrosion from potable water therein, the warrantor will furnish the ORIGINAL OWNER a replacement A.

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