Rheem Power Direct Vent Series Use and Care Manual - Page 33

Care and cleaning of the water heater ! DANGER: Combustible materials, such as clothing, cleaning materials, or flammable liquids, etc., must not be placed against or next to the water heater. Housekeeping Make sure the Flammable Vapor Sensor is not blocked or obstructed. DO NOT expose the Flammable Vapor Sensor to cleaning agents. Combustion Air-Inlet and Vent System Inspection The water heater's internal flue must be inspected periodically to be certain it is clean by removing the blower assembly and flue baffle. When reinstalling the flue baffle make certain it is hung securely by its hanger at the top of the flue way. Inspect the combustion air-inlet and vent systems. Make certain that all joints are secure and that combustion air-inlet and vent system supports are all in place. Check the outdoor combustion air-inlet and vent system terminals to see that they are free of obstructions, and that there is no damage nearby caused by condensate. Reinstall the blower assembly. Representative burner flame pattern Burner Inspection Visually inspect the hot surface ignitor and main burner periodically. Through the sight glass, inspect the hot surface ignitor with the main burner off and inspect the main burner while firing. If any unusual burner operation is noted, the water heater should be shut off until qualified service assistance can be obtained. ! CAUTION: For your safety, cleaning of the burner must be performed only by qualified service personnel, as it involves the disconnection of gas piping and leak testing. The burner chamber is a sealed area. If the burner access door is removed, the burner access door gasket must be replaced. For cleaning, remove the burner from the water heater. A vacuum cleaner can be used on the burner and floor shield inside the water heater. The burner can also be cleaned by scrubbing with mild detergent. NOTICE: Refer to the Hydrogen Gas Caution in the Operating Instructions. Vacation and Extended Shut-Down If the water heater is to remain idle for an extended period of time, the power and water to the appliance should be turned off to conserve energy and prevent a build-up of dangerous hydrogen gas. The water heater and piping should be drained if they might be subjected to freezing temperatures. After a long shut-down period, the water heater's operation and controls should be checked by qualified service personnel. Make certain the water heater is completely filled again before placing it in operation. Anode Rod NOTICE: Do not remove This water heater is equipped with an Water sometimes contains a high sulfate the anode rod from the water heater's tank, except for inspection and/or replacement, as operation with the anode rod removed will greatly shorten the life of the glass anode rod designed to prolong the life of the glass lined tank. The anode rod is slowly consumed, thereby eliminating or minimizing corrosion of the glass lined tank. and/or mineral content and together with cathodic protection process can produce a hydrogen sulfide, or rotten egg odor in the heated water. Chlorination of the water supply should minimize the problem. lined tank and will exclude warranty coverage. 33