A.O. Smith PCRT Instruction Manual

1Instruction ManualPRINTED IN THE U.S.A 0805 PART NO. 184639-001KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCEWHEN EVER MAINTENANC

10The Discharge Pipe:• Shall not be smaller in size than the outlet pipe size of the valve, orhave any reducing couplings or other restrictions.• Shal

11KEEPING THE THERMOSTAT SETTING AT 120°F WILL REDUCE THERISK OF SCALDS.Figure 7 shows the approximate time-to-burn relationship for normaladult skin.

12THERMAL EXPANSIONWater supply systems may, because of such events as high linepressure, frequent cut-offs, the effects of water hammer amongothers,

13The water heater should be drained if being shut down during freezingtemperatures. Also periodic draining and cleaning of sediment from thetank may

14LEAKAGE CHECKPOINTSRead this manual first. Then before checking the water heater makesure the electrical power supply has been turned “OFF” before

15REPAIR PARTS LISTDRAIN PAN171216811141471 3642391015 Key No. Part Description1 Upper Heating Element (If Dual Element Unit)2 Lower Heating Element

16These guidelines should be utilized by a qualified service agent.TROUBLESHOOTING GUIDELINESImproperly sealed, hot or cold supply connection,relief v

17RESIDENTIAL ELECTRIC WARRANTYTHIS WARRANTY IS APPLICABLE TO THE ORIGINALOWNER ONLY. In accordance with the warranty termsand conditions specified b

18without invalidating the remainder of the affected provisionor the other provisions of this warranty.SERVICE AND LABOR RESPONSIBILITYUNDER THIS LIMI

19NOTES:______________________________________________________________________________________________________________________________________________

2SAFE INSTALLATION, USE AND SERVICEYour safety and the safety of others is extremely important in the installation, use and servicing of this water he

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3GENERAL SAFETYSAFE INSTALLATION, USE AND SERVICE ... 2GENERAL SAFETY ...

4Thank You for purchasing this water heater. Properly installed andmaintained, it should give you years of trouble free service.Abbreviations Found I

5TYPICAL INSTALLATIONFIGURE 1.UPRIGHTSCOMPACTSTABLE TOPSINSTALL VACUUM RELIEF IN COLD WATERINLET LINE AS REQUIRED BY LOCAL CODES.INSTALL SUITABLE DRAI

6WIRING DIAGRAMSTURN OFF THE HEATER ELECTRICAL SUPPLY BEFORE SERVICING ANY ELECTRICAL COMPONENTS.FIGURE 2.A-9240 VOLT “OFF PEAK” NON-SIMULTANEOUSOPERA

7MIXING VALVE USAGEFIGURE 3.Water (Potable) Heating: All models are considered suitable forwater (potable) heating only.HOTTER WATER CAN SCALD:Water

8FACTS TO CONSIDER ABOUT THE LOCATIONCarefully choose an indoor location for the new water heater, becausethe placement is a very important considerat

9This water heater shall not be connected to any heating systems orcomponent(s) used with a non-potable water heating appliance.Toxic chemicals, such