A.O. Smith 185363-001 Instruction Manual
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A.O. Smith 185363-001 Instruction Manual

A.O. Smith 185363-001 Instruction Manual

Power vented gas models w/hot surface ignition
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A DIVISION OF A. O. SMITH CORPORATION
Ashland City, TN 37015
w w w.hotwater.com
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS
PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER.
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
PRINTED IN THE U.S.A 0905
RESIDENTIAL GAS WATER HEATERS
GAMA certification applies to
all residential gas water
heaters with capacities of 20
to 100 gallons with input rating
of 75,000 BTU/Hr. or less.
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
POWER VENTED GAS MODELS W/HOT SURFACE IGNITION
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
C3 Technology® Gas Water Heaters meet the new
ANSI Z21.10.1 standard that deals with the accidental or
unintended ignition of flammable vapors, such as those
emitted by gasoline.
•

For Your Safety

AN ODORANT IS ADDED TO THE GAS USED
1

Instruction Manual

•
BY THIS WATER HEATER.
PART NO. 185363-001

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Summary of Contents for A.O. Smith 185363-001

  • Page 1: Instruction Manual

    ANSI Z21.10.1 standard that deals with the accidental or unintended ignition of flammable vapors, such as those emitted by gasoline. • For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER. • PART NO. 185363-001...

  • Page 2: Safe Installation, Use And Service

    SAFE INSTALLATION, USE AND SERVICE Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard.

  • Page 3: General Safety

    GENERAL SAFETY...

  • Page 4: Table Of Contents

    SAFE INSTALLATION, USE AND SERVICE ... 2 GENERAL SAFETY ... 3 TABLE OF CONTENTS ... 4 INTRODUCTION ... 4 Preparing for the New Installation ... 4 TYPICAL INSTALLATION ... 5-6 LOCATING THE NEW WATER HEATER ... 7 Facts to Consider About Location ... 7-8 Insulation Blankets ...

  • Page 5: Typical Installation

    GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe–Exhaust B Vent Terminal C Vent Adapter-Rubber Boot D Blower Assembly E Cold Water Inlet F Inlet Water Shut-off Valve G Union H Inlet Dip Tube J Anode** * ALL PIPING MATERIALS TO BE SUPPLIED BY CUSTOMERS. ** LOCATED UNDER THE BLOWER ASSEMBLY.

  • Page 6: Typical Installation

    This appliance has been design certified as complying with American National Standard/CSA Standard for water heaters and is considered suitable for: Water (Potable) Heating and Space Heating: All models are considered suitable for water (potable) heating and space heating. TYPICAL INSTALLATION MIXING VALVE USAGE FIGURE 2.

  • Page 7: Locating The New Water Heater

    LOCATING THE NEW WATER HEATER FACTS TO CONSIDER ABOUT THE LOCATION Carefully choose an indoor location for the new water heater, because the placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. This water heater is not for use in manufactured (mobile) homes or outdoor installation.

  • Page 8: Insulation Blankets

    and 12" (30.5 cm) from the top. (Standard clearance.) If clearances stated on the heater differ from standard clearances, install water heater according to clearances stated on the heater. Adequate clearance for servicing this appliance should be considered before installation, such as changing the anodes, etc. A minimum clearance of 5"...
  • Page 9 Chemical vapor corrosion of the flue, blower assembly and vent system may occur if air for combustion contains certain chemical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and process chemicals are typical compounds which are potentially corrosive.

  • Page 10: Installing The Water Heater

    INSTALLING THE NEW WATER HEATER WATER PIPING HOTTER WATER CAN SCALD: Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, dish washing, cleaning and other sanitizing needs can scald and permanently injure you upon contact.

  • Page 11: Temperature-Pressure Relief Valve

    Figure 10 shows the typical attachment of the water piping to the water heater. The water heater is equipped with 3/4 inch NPT water connections. NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the cold water inlet connection. Do not solder the cold water supply line directly to the cold water inlet.

  • Page 12: Gas Piping

    GAS PIPING Make sure the gas supplied is the same type listed on the model rating plate. The inlet gas pressure must not exceed 14 inch water column (3.5 kPa) for natural and propane gas (L.P.). The minimum inlet gas pressure shown on the rating plate is that which will permit firing at rated input.

  • Page 13: Sediment Traps

    SEDIMENT TRAPS A sediment trap shall be installed as close to the inlet of the water heater as practical at the time of water heater installation. The sediment trap shall be either a tee fitting with a capped nipple in the bottom outlet or other device recognized as an effective sediment trap.

  • Page 14: Vent Pipe Connection To Blower Assembly

    VENT CONNECTIONS TO BLOWER ASSEMBLY Figure 15 shows the optimal placement of the 2" to 3" or 3" to 4" reducer; however, the vent can be reduced at any point in the vent system as long as the maximum and minimum vent length requirements are met. FIGURE 15.
  • Page 15 The unit may be vented horizontally through a wall or vertically through the roof. Pipe runs must be adequately supported along both vertical and horizontal runs as follows: • For Schedule 40, 2" PVC, ABS, Coex Cellular Core vent pipe: Every 3 feet (0.9 m).
  • Page 16 For 4" Venting, the maximum equivalent feet of pipe allowed is 160 feet (48.8 m). This does not include the Vent Termination (supplied locally) for the water heater. For the 4" venting, one 90° elbow is approximately equal to 8 feet (2.4 m). One 45° elbow is approximately equal to 4 feet (1.2 m).
  • Page 17 This unit can vent through 2", 3" or 4" nonmetallic pipe and fittings. The vent pipe installation can be started from either the blower discharge or the termination wall. Keep in mind the total vent system (pipe and elbows) when installing the vent system, see VENTING AND INSTALLATION, pages 14 - 16.
  • Page 18 VENT PIPE PREPARATION 1. INITIAL PREPARATION Make sure the solvent cement you are planning to use is designed for the specific application you are attempting. Know the physical and chemical characteristics and limitations of the PVC and CPVC piping materials that you are about to use. Know the reputation of your manufacturer and their products.
  • Page 19 B. Deburring Use a knife, plastic pipe deburring tool, or file to remove burrs from the end of small diameter pipe. Be sure to remove all burrs from around the inside as well as the outside of the pipe. A slight chamfer (bevel) of about 10°- 15°...

  • Page 20: Lighting & Operating Label

    FOR YOUR SAFETY READ BEFORE OPERATING WARNING: 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. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner.

  • Page 21: Temperature Regulation

    TEMPERATURE REGULATION Due to the nature of the typical gas water heater, the water temperature in certain situations may vary up to 30°F (16.7°C) higher or lower at the point of use such as, bathtubs, showers, sink, etc. Any water heater’s intended purpose is to heat water. Hot water is needed for cleansing, cleaning, and sanitizing (bodies, dishes, clothing).

  • Page 22: For Your Information

    START UP CONDITIONS CONDENSATE Whenever the water heater is filled with cold water, some condensate will form while the burner is on. A water heater may appear to be leaking when in fact the water is condensate. This usually happens when: a.

  • Page 23: Periodic Maintenance

    PERIODIC MAINTENANCE VENTING SYSTEM INSPECTION At least once a year a visual inspection should be made of the venting system. You should look for: 1. Obstructions which could cause improper venting. The combustion and ventilation air flow must not be obstructed. 2.

  • Page 24: Anode Rod Inspection

    INSTALLED IN SUITABLE AREA: To insure sufficient ventilation and combustion air supply, proper clearances from the water heater must be maintained. See “Locating the New Water Heater” section. Combustible materials such as clothing, cleaning materials, or flammable liquids, etc. must not be placed against or adjacent to the water heater which can cause a fire.

  • Page 25: Service

    8. Follow the lighting instructions in the “Lighting” section to restart the water heater. FIGURE 23. LEAKAGE CHECKPOINTS SERVICE If a condition persists or you are uncertain about the operation of the water heater contact a service agency. Use this guide to check a “Leaking” water heater. Many suspected “Leakers”...

  • Page 26: Repair Parts

    Key No. Part Description Burner Assembly Burner Head Burner Orifice Burner Tube HSI Ignition Assembly Inner Door Inner Door Gasket Flue Baffle Flue Restrictor Blower Assembly Air Intake Screen - Base Pan Inlet Tube Gas Control Valve Drain Valve Drain Valve Washer Outer Door (may appear different than shown) Anode Rod Temperature-Pressure Relief Valve...

  • Page 27: Troubleshooting

    TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. LED STATUS An open earth ground circuit to the A B C ignition system.
  • Page 28 TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES These guidelines should be utilized by a qualified service agent. When calling for service notify the service agent that this is a “Flammable Vapor Ignition Resistant” Product.

  • Page 29: Notes

    NOTES:...

  • Page 30: Notes

    NOTES:...

  • Page 31: 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 (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 water heater of equivalent size and current model, or a replacement part for any component part...
  • Page 32 5621 W. 115TH STREET, ALSIP, IL 60803 PHONE: 1-800-433-2545 FAX: 1-800-433-2515 www.hotwater.com E-mail: parts@hotwater.com...

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