Rheem Marathon Point-of-Use Series Use and Care Manual - Page 3

! General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. It may save you time and cost. Pay particular attention to the General Safety Precautions. Failure to follow these warnings could result in serious bodily injury or death . Should you have problems understanding the instructions in this manual, or have any questions, STOP, and get help from a qualified installer, service technician, or the local electric utility. WATER TEMPERATURE ADJUSTMENT - Safety and energy conservation are factors to be considered when selecting the water temperature setting of water heater's thermostat. Water temperatures above 125°F. can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below. This label is also located on the water heater near the thermostat access panel ! DANGER HOT BURN TIME / TEMPERATURE RELATIONSHIPS IN SCALDS Temperature Time to Produce Serious Burn 120° F. More than 5 minutes 125° F. 11/2 to 2 minutes 130° F. About 30 seconds 135° F. About 10 seconds 140° F. Less than 5 seconds 145° F. Less than 3 seconds 150° F. About 11/2 seconds 155° F. About 1 second Table courtesy of Shriners Burn Institute The chart shown above may be used as a guide in determining the proper water temperature for your home. NOTE: Households with small children, disabled, or elderly persons may require a 120°F. or lower thermostat setting to prevent contact with "HOT" water. The temperature of the water in the heater is regulated by the adjustable surface mounted thermostat(s) located behind the Jacket Access Panel(s). Dual element heaters have two thermostats. To comply with safety regulations the thermostat(s) were set at 120° F. before the water heater was shipped from the factory. There is a Hot Water SCALD Potential if the thermostat is set too high. ! DANGER Mixing valves for reducing point of use water temperature by mixing hot and cold water in branch water lines are available. Contact a licensed plumber or the local plumbing authority for further information. ! WARNING Water temperature over 125°F can cause severe burns instantly or death from scalds. Children, disabled and elderly are at highest risk of being scalded. See instruction manual before setting temperature at water heater. Feel water before bathing or showering. Temperature limiting valves are available, see manual. After installing, do not turn on or operate the water heater unless the temperature and pressure relief is in place and operating properly, you have properly installed the drain pipe on the temperature and pressure relief valve, the vacuum relief valve has been installed, and you have completely filed the water heater with water. ! WARNING HAZARD OF ELECTRICAL SHOCK! Before removing any access panels or servicing the water heater, make sure the electrical supply to the water heater is turned "OFF". Failure to do this could result in property damage, bodily injury or death. 1