Rheem Warrior DVX Series Use and Care Manual - Page 18

Care and cleaning of the water heater. Draining the Water Heater ! CAUTION: Shut off gas to the water heater at the gas control (thermostat) gas cock or manual shut-off valve before draining water. ! DANGER: Before manually operating the relief valve, make certain no one will be exposed to the hot water released by the valve. The water drained from the tank may be hot enough to present a scald hazard and should be directed to a suitable drain to prevent injury or damage. In order to drain the water heater, turn off the cold water supply. Open a hot water faucet or lift the handle on the relief valve to admit air to the tank. Attach a garden hose to the drain valve on the water heater and direct the stream of water to a drain. Open the valve. ! DANGER: Before Routine Preventative Maintenance manually operating the relief valve, make certain no one will be exposed to the danger of coming in contact with the hot water released by the valve. The water may be hot enough to create a scald hazard. The water should be released into a suitable drain to prevent injury or property damage. Properly maintained, your water heater will provide years of dependable trouble-free service. It is recommended that a periodic inspection of the gas control (thermostat), burner, relief valve, internal flue-way and venting system should be made by service personnel qualified in gas appliance repair. A water heater's tank can act as a settling basin for solids suspended in the water. It is therefore not uncommon for hard water deposits to accumulate in the bottom of the tank. If allowed to accumulate, these solids can cover the gas control (thermostat) sensors, causing the sensors to operate erratically. Because accumulated solids can prevent the gas control (thermostat) sensors from accurately It is suggested that a routine reading the water temperature, the water ! DANGER: Hotter water increases the potential for Hot Water Scalds. preventative maintenance program be established and followed by the user. At least once a year, lift and release the lever handle on the temperature pressure relief valve, located near the top of the water heater, to make certain the valve at the fixture can be hotter than the gas control (thermostat) dial setting. It is suggested that a few quarts (litres) of water be drained from the water heater's tank every month to clean the tank of these deposits. operates freely. Allow several gallons to DANGER: Failure to flush through the discharge line to an open perform the recommended drain. Routine Preventative Maintenance can harm the proper operation of this water heater, which can cause NOTICE: If the temperature and pressure relief valve on the hot water heater discharges periodically, this may be due to thermal expansion in a closed carbon monoxide dangers, water system. Contact the water excessive hot water supplier or your plumbing contractor temperatures and other on how to correct this. Do not plug the potentially hazardous relief valve outlet. conditions. Rapid closing of faucets or solenoid valves in automatic water using appliances can cause a banging noise heard in a water pipe. Strategically located risers in the water pipe system or water hammer arresting devices can be used to minimize the problem. The anode rod should be inspected and replaced when more than 6" of core wire is exposed at either end of the rod. Make sure the cold water supply is turned off before removing anode rod. Housekeeping Vacuum around the base of the water heater for dust, dirt and lint on a regular basis. ! DANGER: Combustible materials, such as clothing, cleaning materials, or flammable liquids, etc., must not 18 To insure sufficient ventilation and combustion air supply, proper clearances must be maintained. be placed against or next to the water heater.