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

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

Series 271 with hot surface ignition
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RESIDENTIAL
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.
KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE
PRINTED IN U.S.A. 1003
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
GAS WATER HEATERS
GAS MODELS
FPSH - 75
Series 271
with Hot Surface Ignition
TABLE OF CONTENTS
GET TO KNOW YOUR WATER HEATER
GENERAL SAFETY INFORMATION
INSTALLATION
OPERATION
MAINTENANCE AND
TROUBLESHOOTING
TROUBLESHOOTING WITH THE LED
WARRANTY
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE
READ
INSTALLING AND USING THIS APPLIANCE.
A DIVISION OF A.O. SMITH CORPORATION
1
OWNER'S MANUAL
CAUTION
THOROUGHLY
BEFORE
www.hotwater.com
PART NO. 195057-000
PAGE
2
3-4
4-12
12-14
14-17
18
19

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

  • Page 1 RESIDENTIAL GAS WATER HEATERS OWNER'S MANUAL GAS MODELS FPSH - 75 Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your Series 271 confidence in our products. with Hot Surface Ignition You should thoroughly read this manual before installation and/ or operation of this water heater.

  • Page 2: Get To Know Your Water Heater

    INLET DIP TUBE (CC) CONDENSATE FITTING *CAUTION HARNESS HAS 120 VAC. IN OPERATION TEMPERATURE INDICATORS VACUUM RELIEF VALVE *INSTALL PER LOCAL CODES DISCHARGE TEMPERATURE ADJUSTMENT BUTTONS (U) PROPANE ASSEMBLY WITH IGNITER SIDE VIEW FPSH-75 with Hot Surface Ignition FIGURE 1...

  • Page 3: General Safety Information

    LP gas must be used with great caution. It is highly explosive and heavier than air. It collects first in the low areas making its GENERAL SAFETY INFORMATION odor difficult to detect at nose level. If LP gas is present or even suspected, do not attempt to find the cause yourself.

  • Page 4: Installation

    LOCATION OF HEATER • Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference. When installing the heater, consideration must be given to proper location. Location selected should be as close to the wall as •...
  • Page 5 CONFINED SPACE 3. This unit may NEVER be connected to any existing heating system or component(s) previously used with a non-potable When drawing combustion and dilution air from inside a water heating appliance. conventionally constructed building to a confined space, such a space shall be provided with two permanent openings.

  • Page 6: Connection Of Gas Pipe

    WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION. FIGURE 3 REFER TO FIGURE 1 FOR CONNECTION DETAILS. BEFORE tighten flange screws, joints and pipe connections. Replace ATTACHING THE GAS LINE BE SURE THAT ALL GAS PIPE IS part if leak can't be stopped. CLEAN ON THE INSIDE.

  • Page 7: Planning The Vent System

    BETWEEN THE RELIEF VALVE AND TANK. DO NOT PLUG THE PLANNING THE VENT SYSTEM RELIEF VALVE. Plan the route of the vent system from the discharge of the blower The drain line connected to this valve must not contain a reducing to the planned location of the vent terminal.

  • Page 8: Installation Of Vent System

    NOTE: This unit can be vented using only PVC (Class 160, SEQUENCE OF INSTALLATIONS, FIGURE 5 ASTM D-2241; Schedule 40, ASTM D-1785; or Cellular Core Cut a length of 3" PVC pipe about 3.5 inches longer than the wall Schedule 40 DWV, ASTM F-891), Schedule 40 CPVC/ASTM F-441), or ABS/ASTM D-2661) pipe.
  • Page 9 3. Make sure that plastic tubing is still attached to the pressure install suitable conduit fitting in enclosure. switch and fan housing. Also make sure that wiring connector E. Splice field wiring into existing wiring using code from motor to control box is securely attached. authorized method (wire nuts, etc).

  • Page 10: Installation Of Vent System, Sidewall

    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 PLANNING THE VENT SYSTEM, the through the wall vent terminal in place and the first section of piping, up to first elbow, installed at the blower it is time to complete the installation of the venting system for the sidewall installation.

  • Page 11: Selection Of Materials

    2. SELECTION OF MATERIALS NOTE: Power saws should be specifically designed to cut plastic pipe. • Cutting Device - Saw or Pipe Cutter • Deburring Tool, Knife, File, or Beveling Machine (2" and B. Deburring above) Use a knife, plastic pipe deburring tool, or file to remove burrs •...

  • Page 12: Operation

    STEP E STEP G NOTE: Cans of cement and primer should be closed at all times when not in use to prevent evaporation of chemicals and hardening of cement. They are also very flammable and should be kept away from heat or flame. OPERATION F.

  • Page 13: For Your Safety Read Before Lighting

    FOR YOUR SAFETY READ BEFORE LIGHTING 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

    TEMPERATURE REGULATION 1. "Wake Up" the temperature indicators by holding down both the "COOLER" and "HOTTER" temperature adjustment buttons at the same time for one second, see Figure 10. One or two of the temperature indicators will light up. These indicators will only remain on for 30 seconds if no further buttons are pressed.
  • Page 15 SERVICE SHOULD BE PERFORMED ONLY BY A QUALIFIED POWER VENTER MAINTENANCE SERVICE TECHNICIAN. READ THE GENERAL SAFETY The FPSH-75 must be inspected quarterly. Points of inspection INFORMATION SECTION FIRST. are: USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS 1. MOTOR - Motor must rotate freely. This is a sealed motor COMPONENTS WEAR OUT OVER A PERIOD OF TIME.

  • Page 16: Troubleshooting

    If the heater is to be shut off and exposed to freezing heater yourself. Any work performed by unauthorized personnel temperatures, it must be drained. Water, if left in the tank and may void the warranty. allowed to freeze, will damage the heater. If you are having a problem with your A.O.

  • Page 17: Troubleshooting

    WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. TROUBLESHOOTING For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. PROBLEM POSSIBLE MALFUNCTION SERVICE TO BE PERFORMED 1) Blower will not run...

  • Page 18: Troubleshooting Guide

    TROUBLE SHOOTING Water heater may exhibit problems that are unrelated to a malfunction of the water heater itself. The following information and tables may serve to answer your question about a problem that you are having without having to call a service agent. WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE.

  • Page 19: Limited Residential Gas Warranty

    LIMITED RESIDENTIAL GAS WARRANTY b. Shipping and delivery charges for forwarding the new water heater THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY. If or replacement part from the nearest distributor and returning the the glass lined tank in this water heater shall prove upon examination by claimed defective heater or part to such distributor except in the A.
  • Page 20 A.O. SMITH WATER PRODUCTS CO., INC. 5621 W. 115TH STREET • ALSIP, ILLINOIS 60803 PHONE: 1-800-433-2545 • FAX: 1-800-433-2515 www.hotwater.com • E-MAIL: parts@hotwater.com...

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