A.O. Smith GDV Instruction Manual
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A.O. Smith GDV Instruction Manual

A.O. Smith GDV Instruction Manual

A.o. smith residental gas water heater owner's manual
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A DIVISION OF A. O. SMITH CORPORATION
Ashland City, TN 37015
www.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 CANADA 1107
RESIDENTIAL GAS WATER HEATERS
GAMA certifi cation applies to
all residential gas water heat-
ers with capacities of 20 to
100 gallons with input rating
of 75,000 BTU/Hr. or less.
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.

Instruction Manual

DIRECT VENT GAS MODELS GDV/GDVT
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
•

For Your Safety

AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
•
PART NO. 186138-000

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  • Page 1: Instruction Manual

    KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. PRINTED IN CANADA 1107 Instruction Manual DIRECT VENT GAS MODELS GDV/GDVT NOT FOR USE IN MANUFACTURED (MOBILE) HOMES • For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER.

  • 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 .

  • Page 5: Installation Requirements For The Commonwealth Of Massachusetts

    INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above fi...

  • Page 6: Typical Installation

    GET TO KNOW YOUR WATER HEATER INLET VALVE HOT WATER OUTLET PIPE ANODE FLUE BAFFLE GAS SUPPLY LINE MAIN MANUAL GAS SHUTOFF VALVE GROUND-JOINT UNION DIRT LEG OUTER DOOR ALL PIPING MATERIALS TO BE SUPPLIED BY CUSTOMER. TYPICAL INSTALLATION REPLACEMENT PARTS Replacement parts may be ordered through authorized servicers or distributors.

  • Page 7: Mixing Valve Useage

    MIXING VALVE USAGE NON-SCALD TEMPERING VALVE NON-TEMPERED WATER SUPPLY SUGGESTED PIPING ARRANGEMENT FOR TOP CONNECTIONS This appliance has been design certifi ed 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 heat- ing.

  • Page 8: 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 eco- nomical use of the appliance. This water heater is not for use in manufactured (mobile) homes or outdoor installation.

  • Page 9: Insulation Blankets

    INSULATION BLANKETS Insulation blankets available to the general public for external use on gas water heaters are not necessary with this product. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank water heaters. Your Water heater meets or exceeds the National Appliance Energy Conser- vation Act standards with respect to insulation and standby loss requirements, making an insulation blanket unnecessary.

  • Page 10: Installing The New Water Heater

    REQUIRED ABILITY INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. SUPPLY, VENTING AND GAS SUPPLY ARE REQUIRED. INSPECT SHIPMENT There may be hidden damage caused in transit. be certain all parts of the venting system, as listed below, are present.

  • Page 11: T & P Valve And Pipe Insulation (If Supplied)

    HOT WATER OUTLET UNION 3/4” SWEAT FITTING DRAIN VALVE FLOOR DRAIN FIGURE 5 Figure 5 shows the typical attachment of the water piping to the water heater. The water heater is equipped with 3/4“ NPT water connections. NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the cold water inlet connection.

  • Page 12: Water (Potable) Heating And Space Heating

    distance below the structural fl oor. Be certain that no contact is made with any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 ft. (9.14m), or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve, see Figures 5 or 10.
  • Page 13 minimum inlet gas pressure shown on the rating plate is that which will permit fi ring at rated input. All gas piping must comply with local codes and ordinances or with the National Fuel Gas Code ANSI Z223.1/NFPA 54 which- ever applies.

  • Page 14: 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 fi tting with a capped nipple in the bottom outlet or other device recognized as an ef- fective sediment trap.

  • Page 15: Combustion Air And Ventilation

    COMBUSTION AIR AND VENTILATION When determining the installation location for a direct vent water heater, snow accumulation and drifting should be considered in areas where applicable. VENT TERMINAL CLEARANCES The vent system must terminate so that proper clearances are maintained as cited in local codes or the current edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54 as follows: *Minimum 9 in.

  • Page 16: Vent Connections

    FIGURE 12 Be sure venting is properly connected to prevent escape of dan- gerous fl ue gases which could cause deadly asphyxiation. FIGURE 13 VENT CONNECTIONS After the location for the vent terminal has been selected as outlined in Figures 3, 4 & 11, use the following illustrations for installation: FIGURE 14 LOCATING CLEARANCE HOLE FOR VENT...

  • Page 17: Standard Vent Arrangement

    STANDARD VENT ARRANGEMENT 3.6 in. 17 in. (432mm) MIN.,* (91mm) 80 in. (2.03m) MAX. 2.6 in. (67mm) 2.1 in. (54.5mm) FIGURE 17 * If the horizontal distance is less than 30 in. (760mm), the restricter plate must be installed (see Figure 22). VENT ASSEMBLY The vent tube and terminal are assembled by the manufacturer as shown in Figure 18.

  • Page 18: Offset Vent Arrangement Condition 1

    Pull and connect the 3-1/8 in. (80mm) corrugated tube to the water heater’s fl ue tube reducer with hi-temp red silicone (included) and gear clamp. Make sure this connection is tight and leak proof. *The sealant between 3-1/8 in. (80mm) corrugated tube and water heater’s fl...

  • Page 19: Lighting & Operating Label

    FOR YOUR SAFETY READ BEFORE LIGHTING BEFORE LIGHTING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES A. This appliance has a pilot which is lit by a piezo-electric spark gas ignition system. Do not open the inner door of the appliance and try to light the pilot by hand.

  • Page 20: Temperature Regulation

    TEMPERATURE REGULATION HOT WATER CAN SCALD: Water heaters are intended to produce hot water. Water heated to a temperature that will satisfy space heating, clothes washing, dish washing, and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely to be permanently injured by hot water than others.

  • Page 21: For Your Information

    EXTERNAL DAMAGE Do not operate the water heater until it has been fully checked out by a qualifi ed technician, if the water heater: • Has been exposed to fi re or damage. • Displays evidence of sooting. • Produces steam or unusually hot water. If the water heater has been fl...

  • Page 22: Air" In Hot Water Systems

    lines. Contact the local water heater supplier or service agency for further information concerning an Anode Replacement Kit and this chlorination treatment. If the smelly water persists after the anode replacement and chlorination treatment, we can only suggest that chlorination or aeration of the water supply be considered to eliminate the water problem.

  • Page 23: Maintenance

    FOR YOUR SAFETY AND SATISFACTORY OPERATION, IT IS RECOMMENDED THAT THIS HEATER BE CHECKED ONCE A YEAR BY A COMPETENT SERVICE PERSON. USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD BE INSPECTED FOR PROPER OPERATION PERI- ODICALLY BY A QUALIFIED SERVICE TECHNICIAN.

  • Page 24: Temperature & Pressure Relief Valve

    TEMPERATURE & PRESSURE RELIEF VALVE At least once a year, the temperature and pressure relief valve, Figure 1, must be checked to ensure that it is in operating condi- tion. Lift the lever at the top of the valve several times until the valve seats properly and operates freely.

  • Page 25: Drain Valve Washer Replacement

    Before removing the anode: 1) the tank water should be cool, 2) the cold water shut off valve must be closed, and 3) water pres- sure must be relieved by opening a nearby faucet. DRAIN VALVE WASHER REPLACEMENT (See Figure 30) 1.

  • Page 26: 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 sus- pected “Leakers” are not leaking tanks. Often the source of the water can be found and corrected.

  • Page 27: Troubleshooting Guidelines

    PROBLEM 1. Pilot not lit 2. Thermostat set too low 3. No gas 4. Dirt in the gas lines BURNER WILL NOT IGNITE 5. Pilot line clogged 6. Main burner line clogged 7. Defective thermocouple 8. Defective gas control/thermostat 9. Heater installed in a confi ned area SMELLY WATER 1.
  • Page 28 PROBLEM 1. Insuffi cient secondary air 2. Flue clogged 3. Low gas pressure SLOW HOT WATER RECOV- 4. Improper calibration 5. Gas control/thermostat set too low 6. Water heater too small 7. Wrong piping connections 8. Wasted hot water 1. Excessive water pressure DRIP FROM RELIEF VALVE 2.

  • Page 29: Notes

    NOTES...

  • Page 30: Warranty

    ProMax 6-Year Models GCV, GCVL, GCVH, GVR, 6-Year GCVT, GCVX, GCNH, GNR, GDV, GDVT When the water heater has been used for other than single family residential application; 1. The tank warranty shall be reduced to 1 year for 6 year models.

  • Page 31: Warranty

    SERVICE AND LABOR RESPONSIBILITY UNDER THIS LIMITED WARRANTY, THE WARRANTOR WILL PROVIDE ONLY A REPLACEMENT WATER HEATER OR PART THEREOF. THE OWNER IS RESPONSIBLE FOR ALL OTHER COSTS. Such costs may include but are not limited to: a. Labor charges for service, removal, or reinstallation of the water heater or part thereof.
  • Page 32 500 TENNESSEE WALTZ PARKWAY ASHLAND CITY, TN 37015 PHONE: 1-800-433-2545 FAX: 1-800-433-2515 www.aosmithwaterheaters.com / email: parts@hotwater.com...

This manual is also suitable for:

GdvtPromax 10 seriesPromax 6 series

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