A.O. Smith XDVS - Manuals

5 Make sure that the outside vents on the supply regulators and thesafety vent valves are protected against blockage. These areparts of the gas supply system not the heater. Vent blockage mayoccur during ice storms. IT IS IMPORTANT TO GUARD AGAINST CONTROL FOULINGFROM CONTAMINANTS IN THE GAS WAYS. S...

6 FIGURE 4 WARNING Vent termination must not be within 4 feet of any items such asgas meters, gas valves or other gas regulating equipment. OPTIONAL WIRE GRILL When the water heater vent cap is low enough to be touchedaccidentally, or is accessible to small children, installation of aprotective vent...

7 FLUE EXTENSIONS There are three optional extension kits available. Anycombination of the three kits can be chosen; however, only onekit can be used vertically and/or horizontally, see Figures 10and 11. WARNING At no time can more than one Vertical and/or one HorizontalVent Kit be used. Unless othe...

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 andcomparing that to “F DIMENSION” in TABLE 1, it can bedetermined which kit needs to be used vertically. WARNING Obstructions and deteriorated ...

9 WATER HEATER ATTITUDE There is a certain amount of variation permissible with regardto the direction the water heater faces. Standing in front of the water heater (gas control facing you), setthe 3” diameter elbow (slotted end) on the flue. This will giveyou a better understanding of the relation ...

11 16. Go back indoors to attach inside collar to the inside wall. Place the collar against the wall. Secure to wall by using 4long sheet metal screws. FIGURE 30 NOTE: Screws are supplied; however, substitution may benecessary depending on the interior wall material. 17. Using the tube of sealant su...

19 23. Pull the vent collar from the elbow to be against the wall and secure it using the screws provided. FIGURE 96 24. Lock the 6” vent extension to the vent elbow by using two screws provided, placing them 180 ° apart. FIGURE 97 T & P VALVE AND PIPE INSULATION Remove insulation for T & P ...

20 WARNING If you do not follow these instructions exactly, a fire or explosionmay result causing property damage, personal injury or loss of life. A. This appliance has a pilot which is lit by a piezo-electricspark gas ignition system. Do not remove the accessdoors of the appliance and try to light...

21 It is recommended that lower water temperatures be used toavoid the risk of scalding. It is further recommended, in allcases, that the water temperature dial, Figure 99, be set for thelowest temperature which satisfies your hot water needs. Thiswill also provide the most energy efficient operatio...

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 SOTHAT THE HAND IS NOT EXPOSED TO HOT WATER. IFDESIRED, A HOSE MAY BE CONNECTED TO THE DRAINVALVE TO CARRY THE WATER AWAY....

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 SERVICE TO BE PERFORMED POSSIBLE SOLUTION NO HOT WATER 1) No pilot A. No ...

24 THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY. Ifthe glass lined tank in this water heater shall prove upon examination byA. O. Smith Corporation (the warrantor) to have leaked during the warrantyperiod in normal residential use, due to natural corrosion from potablewater therein, the wa...