Rheem XE50M12EC45U0 Instruction Manual

Water HeatersElectric ResidentialThe purpose of this manual is twofold: one, to provide the installer with the basic directions and recommendations fo

10Installing the water heater.For increased energy efficiency, some water heaters have been supplied with a 2-3/8” section of pipe insulation.Please i

11Installation ChecklistA. Water Heater LocationB. Water SupplyC. Relief ValveD. Wiring ❑ Close to area of heated water demand. ❑ Indoors and pro

12Safety Precautions Do turn off power to water heater if it has been subjected to over heating, fire, flood, physical damage. Do Not turn on wate

13Water TemperatureTime/Temperature Relationship in Scalds Temperature Time To Produce a Serious Burn 120°F More than 5 minutes 125°F 11/2 to 2 m

14POWERING ON WATER HEATERSETTING WATER TEMPERATURELOCKING THE SCREENorLockIcon*Note: If screen is dimmed press any buon and release to brighten th

15VACATION SETTING ONVACATION SETTING OFFUNLOCKING THE SCREENLockIconHEATING STATUSSCROLLING DOTWhen a dot scrolls between the numbers, this means tha

16CONFIGURATION MENU– MODE– CONFIGURE– STATUS– HISTORYPRESS TOSELECTENERGY SAVER– HIGH TEMPDISPLAY– BEEP– INSTANCEMODECONFIGUREPRESS TOSELECTPress an

17CHANGECHANGESCROLLDISPLAYBEEPINSTANCE– NO- YESPRESS TOSELECTHIGH TEMPERATUREHigh temperature mode will allow the water temperature to be set above 1

18Programming the Electronic Control– HEAT– UPPER TEMP– LOWER TEMPSCROLLPRESS TOSELECTSTATUSHISTORYUse DOWN arrow to scroll through the menu. Press M

19CODE SCROLLING MESSAGE DESCRIPTION/ACTIONA100 Lower temperature thermistor failureElectronic control has detected lowe

2Care and CleaningDraining ... 20Maintenance ... 20Extended Shut-Down ... 21Safety InformationSafety Precautions ... 3, 4

20Care and cleaning of the water heater.Draining the Water HeaterCAUTION: Shut off power to the water heater before draining water.DANGER: Before manu

21Care and cleaning of the water heater.Extended Shut-DownIf the water heater is to remain idle for an extended period of time, the power and water to

22Before You Call For Service…Troubleshooting Tips Save time and money! Review the chart on this page first and you may not need to call for service.C

23Replacement Parts.For 20–120 gallon models with single and double elements.Instructions For Placing a Parts OrderAddress parts orders to the distrib

24Cavity Insert InstructionsThe following instructions are intended for qualified service personnel ONLY, and should only be done when necessary.In or

25Wiring DiagramThis water heater is wired as indicated in the schematic below. Use only a 2 wire power feed with ground connection for this water he

26Notes:

27Notes:

28IF YOU NEED SERVICE1. Should you have any questions about your new water heater, or if it requires adjustment, repair, or routine maintenance, it i

3Time/Temperature Relationship in Scalds Temperature Time To Produce a Serious Burn 120°F More than 5 minutes 125°F 1½ to 2 minutes 130°F Abou

4IMPORTANT SAFETY INFORMATION.READ ALL INSTRUCTIONS BEFORE USING.WARNING!For your safety, the information in this manual must be followed to minimize

5Installing the water heater.The location chosen for the water heater must take into consideration the following:Local Installation RegulationsThis wa

6Installing the water heater.Typical InstallationThermal ExpansionDetermine if a check valve exists in the inlet water line. Check with your local wat

7!WARNING: The pressure rating of the relief valve must not exceed 150 PSI, the maximum working pressure of the water heater as marked on the rating p

8Installing the water heater.NOTICE: This guide recommends minimum branch circuit sizing and wire size based on National Electric Code. Refer to wirin

9For increased energy efficiency, some water heaters have been supplied with two 24” sections of pipe insulation.Please install the insulation, accord