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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.
PRINTED IN U.S.A. 0106
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
GAS WATER HEATERS
DIRECT VENT
GAS MODELS
GDVH/GDVS/XDVS
TABLE OF CONTENTS
.............................................................................
GET TO KNOW YOUR WATER HEATER ...................... 2
GENERAL SAFETY INFORMATION ............................. 3
INSTALLATION ......................................................... 3-19
OPERATION ............................................................. 19-21
MAINTENANCE AND
TROUBLESHOOTING .............................................. 21-23
WARRANTY ................................................................. 24
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ
THOROUGHLY BEFORE INSTALLING AND USING THIS
APPLIANCE.
A DIVISION OF A.O. SMITH CORPORATION
www.aosmithwaterheaters.com
1
OWNER'S MANUAL
CAUTION
PART NO. 184961-001
PAGE
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Summary of Contents for A.O. Smith GDVH
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Page 1: Table Of Contents
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. -
Page 2: Get To Know Your Water Heater
GET TO KNOW YOUR WATER HEATER TYPICAL INSTALLATION WARNING DO NOT ATTEMPT TO OPERATE WATER HEATER WITH COLD WATER INLET VALVE CLOSED. ALL PIPING MATERIALS TO BE SUPPLIED BY CUSTOMER. REPLACEMENT PARTS Replacement parts may be ordered through authorized servicers or distributors. Refer to the Yellow Pages for where to call or contact A. -
Page 3: General Safety Information
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. INSTALLATION... -
Page 4: Installation
inches greater than the diameter of the heater and should be piped to an adequate drain. Drain pans suitable for these heaters are available from your dealer or A. O. Smith Water Products Company, 500 Tennessee Waltz Parkway, Ashland City, TN 37055. Contact us at our website: www.aosmithwaterheaters.com,phone: 800.433.2545, or fax: 1.800.433.2515. - Page 5 Make sure that the outside vents on the supply regulators and the safety vent valves are protected against blockage. These are parts of the gas supply system not the heater. Vent blockage may occur during ice storms. IT IS IMPORTANT TO GUARD AGAINST CONTROL FOULING FROM CONTAMINANTS IN THE GAS WAYS.
- Page 6 FIGURE 3A 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. VENTING CLEARANCES • 18” minimum in all directions from any obstruction that may interfere.
- Page 7 FIGURE 6 FIGURE 7 FIGURE 8 FIGURE 9 FLUE EXTENSIONS There are three optional extension kits available. combination of the three kits can be chosen; however, only one kit can be used vertically and/or horizontally, see Figures 10 and 11. WARNING At no time can more than one Vertical and/or one Horizontal Vent Kit be used.
- Page 8 VERTICAL (EXTENSION KIT) HEIGHT It is simple to determine which kit is needed for vertical height. Take the total height (to the top of the flue) required and comparing that to “F DIMENSION” in TABLE 1, it can be determined which kit needs to be used vertically. WARNING Obstructions and deteriorated vent systems may present serious health risk or asphyxiation.
- Page 9 WATER HEATER ATTITUDE There is a certain amount of variation permissible with regard to the direction the water heater faces. Standing in front of the water heater (gas control facing you), set the 3” diameter elbow (slotted end) on the flue. This will give you a better understanding of the relation of the vent assembly to the opening in the wall and more importantly any possibly of interference of venting and water piping.
- Page 10 8. Slide the vent collar (to be installed later) over the 6” vent elbow. FIGURE 22 9. Place the water heater at the opening in the wall, at the predetermined clearance. FIGURE 23 10. Move outdoors with all the remaining vent parts. Using the tube of sealant supplied, run an ample amount on the inside surface of the collar assembly that will contact the exterior wall and also fill the bead on the end of the 6”...
- Page 11 16. Go back indoors to attach inside collar to the inside wall. Place the collar against the wall. Secure to wall by using 4 long sheet metal screws. FIGURE 30 NOTE: Screws are supplied; however, substitution may be necessary depending on the interior wall material. 17.
- Page 12 4. Using the tube of sealant supplied, run an ample amount around the oval flare of the jacket. FIGURE 37 5. Place the 6” vent section over the 3” flue section. Subtract 3/4” from the X dimension used earlier and this gives the length of the 6”...
- Page 13 12. Place the water heater at the opening in the wall, at the predetermined clearance. FIGURE 45 13. Move outdoors with all the remaining vent parts. Using the tube of sealant supplied, run an ample amount on the inside surface of the collar assembly that will contact the exterior wall and also fill the bead on the end of the 6”...
- Page 14 OPTIONAL HORIZONTAL VENT KIT #900124-7 INSTALLATION #3 * Each part is stamped with a part number. FIGURE 53 The opening through the wall should be cut at this time. If it hasn’t been, refer back to that section. 1. Lock the elbow to the straight 3” flue pipe. assembly in place on the end of the water heater’s flue collar.
- Page 15 9. Slide the 6” telescoping vent section apart to reveal the beads. NOTE: The section of 6” pipe with beads will connect to the elbow. Using the caulking supplied, fill the beads. FIGURE 62 10. Insert the 6” telescoping vent section into the wall. FIGURE 63 11.
- Page 16 FIGURE 70 19. Now the 6” vent extension pipes can be expanded to connect at the vent elbow. FIGURE 71 20. Pull the vent collar from the elbow to be against the wall and secure it using the screws provided. FIGURE 72 21.
- Page 17 FIGURE 77 4. Using the tube of sealant supplied, run an ample amount around the oval flare of the jacket. FIGURE 78 5. Place the 6” vent section over the 3” flue section. Subtract 3/4” from the X dimension used earlier and this gives the length of the 3”...
- Page 18 FIGURE 86 14. Move outdoors with all the remaining vent parts. Using the tube of sealant supplied, run an ample amount on the inside surface of the collar assembly that will contact the exterior wall and also fill the bead on the end of the 6” diameter vent collar.
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Page 19: Operation
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, 500 Tennessee Waltz Parkway, Ashland City, TN 37015. Phone: 1-800-433-2545, fax: 1-800- 433-2515, email: www.parts@hotwater.com. -
Page 20: Lighting Instructions
FOR YOUR SAFETY READ BEFORE LIGHTING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. This appliance has a pilot which is lit by a piezo-electric spark gas ignition system. -
Page 21: Operation
It is recommended that lower water temperatures be used to avoid the risk of scalding. It is further recommended, in all cases, that the water temperature dial, Figure 99, be set for the lowest temperature which satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater. - Page 22 • Turn off the gas and cold water inlet valve to the heater, fig. 1. • Open a nearby hot water faucet and the heater drain valve. • BE CAREFUL TO GRASP THE DRAIN VALVE HANDLE SO THAT THE HAND IS NOT EXPOSED TO HOT WATER. IF DESIRED, A HOSE MAY BE CONNECTED TO THE DRAIN VALVE TO CARRY THE WATER AWAY.
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Page 23: Troubleshooting
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. PROBLEM POSSIBLE MALFUNCTION NO HOT WATER 1) No pilot A. No gas to pilot B. -
Page 24: Warranty
OF-INSTALLATION ARE NECESSARY TO VALIDATE THIS WARRANTY. This warranty is not transferable and applies to models listed in Table 1. TABLE 1. WARRANTY PERIOD MODEL TANK GDVH/GDVS 6 YEARS XDVS 10 YEARS When the water heater has been used for other than single family residential application;... - Page 25 NOTES...
- Page 26 NOTES...
- Page 28 500 TENNESSEE WALTZ PARKWAY, ASHLAND CITY, TN 37015 PHONE: 1-800-433-2545 FAX: 1-800-433-2515 www.aosmithwaterheaters.com / email: parts@hotwater.com...