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

A.O. Smith FPSH Owner's Manual

Residential gas water heaters, power vented gas models with smartvalve hot surface ignition & 2” pvc vent capability
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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
WARNINGS and CAUTIONS.
KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE
PRINTED IN U.S.A. 2566 200
GAS WATER HEATERS
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
Power Vented Gas Models
FPSH/FPCR/FPST
with SmartValve
Hot Surface Ignition
& 2" PVC Vent Capability
TABLE OF CONTENTS
GET TO KNOW YOUR WATER HEATER
GENERAL SAFETY INFORMATION
INSTALLATION
OPERATION & LIGHTING INSTRUCTIONS
MAINTENANCE
TROUBLESHOOTING
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
MCBEE, SOUTH CAROLINA
www.hotwater.com
1
OWNER'S MANUAL
,
TM
PAGE
4-12
12-14
15-16
16-17
18
CAUTION
THOROUGHLY
BEFORE
PART NO. 183432-000 REV.1
SUPERSEDES PART NO. 183323-000
2
3

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  • Page 1 PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE. A DIVISION OF A.O. SMITH CORPORATION MCBEE, SOUTH CAROLINA www.hotwater.com KEEP THIS MANUAL IN THE POCKET ON THE HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. PART NO. 183432-000 REV.1 PRINTED IN U.S.A.

  • Page 2: Get To Know Your Water Heater

    (N) COLD WATER INLET (O) INLET DIP TUBE SMARTVALVE CONTROL SYSTEM *CAUTION: 115VAC IN CONTROL HARNESS AND INSIDE OUTER DOOR WATER TEMPERATURE ADJUSTING DIAL FIGURE 1 GAS MODELS FPSH/FPCR/FPST WITH HOT SURFACE IGNITION AND SMARTVALVE - 2” PVC VENT CAPABILITY...

  • Page 3: General Safety Information

    A natural gas heater will not function safely on LP gas and no attempt should be made to • Do obtain new warning and instruction labels from A.O. Smith convert a heater from natural gas to LP gas.

  • Page 4: Installation

    UNCONFINED SPACE INSTALLATION In buildings of conventional frame, brick or stone construction, unconfined spaces may provide adequate air for combustion, ventilation, and dilution air for power venter. REQUIRED ABILITY If the unconfined space is within a building of tight construction INSTALLATION OR SERVICE OF THIS WATER HEATER (as defined in the most recent revision of the National Fuel Gas REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED...

  • Page 5: Water Connections

    Drain pans suitable for these heaters are available from your plumbing inspector on how to correct the situation. Do not plug dealer or A.O. Smith Water Products Company, Product Service the temperature and pressure relief valve. Division, 5621 W. 115th Street, Alsip, IL 60803, 1-800-433-2545.

  • Page 6: Vent Pipe Termination

    3. The venting system shall terminate at least 4 feet below, 4 feet horizontally from or, 1 foot above any door, window or gravity air inlet into any building. The manufacturer also recommends that the vent termination should not be installed closer than 3 feet from an inside corner of an L shaped structure and not be less than 1 foot above grade.
  • Page 7 DURING OPERATION FIGURE 3 SEQUENCE OF INSTALLATION 1. The FPSH/FPCR/FPST Power Vent Models come with the This unit can vent through two (2) or three (3) inch PVC pipe and blower assembly installed. fittings. The vent terminal supplied with the unit must be used for 2.

  • Page 8: Installation Of Vent System

    THIS UNIT IS MANUFACTURED WITH AN EXTERNAL INSTALLATION OF VENT SYSTEM CONTROL HARNESS FOR EASIER REPLACEMENT IF THE HARNESS OR CONNECTORS GET DAMAGED. (Refer to Figures 3, 4, 5,7 and 8 as guides). 6. Do not plug in power cord until vent system is completely 1.
  • Page 9 TABLE FOR VENT PIPE LENGTH FOR FPSH/FPCR UNITS TWO INCH DIAMETER PIPE **Number of 90° Elbows **Number of 45° Elbows Minimum Pipe Maximum Pipe One (1) None 2 Ft. 46 Ft. One (1) One (1) 1 Ft. 42 Ft. Two (2) None 1 Ft.

  • Page 10: Vertical Vent Through Roof

    through the drain in the bottom of the housing. A plastic tube VENT PIPE PREPARATION is furnished for the condensate to be drained away from the water heater. 1. INITIAL PREPARATION A. Make sure the solvent cement you are planning to use is A method to keep the condensate from draining back to the designed for the specific application you are attempting.
  • Page 11 APPLICATORS are at the tolerance extremes, it will be possible to fully insert dry pipe to the bottom of the fitting socket. When this happens, Select a suitable pure bristle type paint brush. Use a proper width a sufficient quantity of cement must be applied to the joint to brush or roller to apply the primer and cement (see chart below).

  • Page 12: To Operate The Water Heater

    BE INSTALLED OVER THE THERMOSTAT TO PREVENT TAMPERING. Suitable covers are available through A.O. Smith Fit T & P valve insulation over Water Products Company, 5621 W. 115th Street, Alsip, IL 60803. valve. Make sure that the...

  • 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 Time to Produce 2nd & 3rd Temperature Setting Degree Burns on Adult Skin VERY HOT= approx. 160*F About 1/2 second C = approx. 150*F About 1-1/2 seconds B = approx. 140*F Less than 5 seconds A = approx. 130*F About 30 seconds HOT = approx.

  • Page 15: Maintenance

    should be checked periodically for any accumulation of dust and lint. Any build up of dirt in the screen can result in insufficient dilution air and excessive vent temperatures that could cause MAINTENANCE heat damage to the PVC pipe. The venter must be inspected four times a year. Points of inspection are: WARNING DISCONNECT FROM ELECTRICAL SUPPLY BEFORE...

  • Page 16: Troubleshooting

    forming droplets, these drip into the fire or run out on the floor. CATHODIC PROTECTION - ANODE (FIG. 1) This is common at the time of startup after installation, during periods of time when incoming water is very cold, or the heater The anode rod within the tank is designed to be slowly consumed may be undersized for the requirements.
  • Page 17 Have plumber check and repair leaks. A) Defective air flow restrictor. Take unit out of service immediately, call an A.O. Smith service representative. B) Not enough dilution air to mix with Proper dilution air must be provided for flue gases in inlet tee.

  • Page 18: Limited Residential Gas Warranty

    Any claim under this warranty should be initiated with the dealer MODEL TANK PARTS who sold the heater, or with any other dealer handling the FPSH 6 YEARS 2 YEARS warrantor’s products. If this is not practical, the owner should FPCR...

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