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A.O. Smith AOSRE50400 manual

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Table of contents for the manual

  • Page 1

    1 PRI NTE D 0 707 1 8583 4-000 KEEP THIS MANUAL IN THE POCKET ON HEA TER FOR FUTURE REFERENCE WHEN EVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. A L L TE C H N I C A L A N D W AR R A N T Y Q UE S T I O N S : S H O U L D B E DI R E C T E D T O TH E LO C A L D E A L E R F R O M W H O M TH E W A T E R H E A T E R W AS P U R C H A SE D. I F Y OU [...]

  • Page 2

    2 SAFE INST ALLA TION, USE AND SERVICE Y our safety and the safety of others is extremely important in the installation, use, and servicing of this water heater . Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. Read and obey all safety [...]

  • Page 3

    3 GENERAL SAFETY[...]

  • Page 4

    4 Thank Y ou for purchasing this water heater . Properly installed and maintained, it should give you years of trouble free service. Abbreviations Found In This Instruction Manual: • ANSI - American National Standards Institute • ASME - American Society of Mechanical Engineers • NEC - National Electrical Code • NFP A - National Fire Protect[...]

  • Page 5

    5 TYPICAL INST ALLA TION MIXING V AL VE USAGE FIGURE 2. W ater (Potable) Heating: All models are considered suitable for water (potable) heating only . H O T T E R W AT E R C A N S C A L D : W ater heaters are intended to produce hot water . W ater heated to a temperature which will satisfy space heating, clothes washing, dish was hi ng, and ot her[...]

  • Page 6

    6 F ACTS TO CONSIDER ABOUT THE LOCA TION Carefully choose an indoor location for the new water heater , bec aus e t he pla cem ent is a ver y i mpo rtan t c ons ide rati on fo r th e safety of the occupants in the building and for the most economical use of the appliance. Whether replacing an old water heater or putting the water heater in a new lo[...]

  • Page 7

    7 INST ALLING THE NEW W A TER HEA TER MOUNTING MOUNTING - DR YW ALL (HOLLOW W ALL) 1. The selected wall or cabinet must be capable of supportin g double the weight of the unit when completely full of water (77 Ibs). 2. The installation area must provide adequate clearances for removal of the front panel and servicing the unit. 3. Locate the wall st[...]

  • Page 8

    8 FIGURE 4. W A TER PIPING PRESSURE TEST This section is only for the manufacturer installing the water heater when the installation is to comply with H.U.D. Standards. When testing the water ways, H.U.D. Standards state: “W ater distribution system: All water piping in the water distribution system shall be subjected to a pressure test. The test[...]

  • Page 9

    9 This heater is provided with a properly certified combination temperature - pressure relief valve by the manufacturer . The valve is certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment of materials as meeting the requirements for Relief V alves for Hot W ater Supply Systems,[...]

  • Page 10

    10 WIRING DIAGRAM FIGURE 5.[...]

  • Page 11

    1 1 WIRING Never use the water heater unless it is completely full of water . T o prevent damage to the tank and the heating element, the tank must be filled with water. Water must flow from the hot water faucet before turning on the power . Y ou must provide all wiring of the proper size outside of the water heater . Y ou must obey the local codes[...]

  • Page 12

    12 HOTTER W A TER CAN SCALD: Water heaters are intended to produce hot water. W ater heated to a temperature which will satisfy space heating, clothes washing, dish washing, and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely to be permanently injured by hot water than others. These include the [...]

  • Page 13

    13 THERMAL EXP ANSION W ater supply systems may , because of such events as high line pr es su re , fre qu en t cut -o f fs , the ef f ec ts of wa ter ham me r amo ng ot he rs , ha ve ins ta l le d de vi ce s su ch as pr es su re red uc i ng va lv e s, ch ec k va lv es , bac k ow pre ven te rs, et c. to con tro l thes e type s of prob lem s. Whe[...]

  • Page 14

    14 no t ca us e an y p ro per ty dam ag e, as t he wat er may be ext re me ly h ot , se e F igu re 7. FIGURE 7. If after manually operating the valve, it fails to completely reset and continues to release water , immediately close the cold water inlet to the water heater , follow the draining instructions, and replace the temperature-pressure relie[...]

  • Page 15

    15 3. Using a Philips screwdriver , unscrew the bottom screw securing the outer door , see Figure 8. 4. Lift up and remove front panel. FIGURE 8. THERMOST A T REMOV AL / REPLACEMENT REMOVAL 1. Turn of f and unplug the water heater from the electrical outlet. 2. Remove the front panel, see the “REMOVING THE FRONT P ANEL” section in this manual. [...]

  • Page 16

    16 wate r inlet and out let, open the neares t hot water tap and follow ll in g in str uct ion s. Never use this water heater unless it is completely full of water . T o prevent damage to the tank and heating element, the tank must be lled with water . Water must ow from the hot water faucet before turning “ON” power . The manufacturer[...]

  • Page 17

    17 LEAKAGE CHECKPOINTS Read this manual rst. Make sure the electrical power supply has been turned “OFF” before checking the tank for leakage. *A. Condensation and dripping may be seen on pipes if the water temperature is low in humid weather or pipe connections may be leaking. B. Small amounts of water from temperature-pressure relief valve[...]

  • Page 18

    18 T ighten threaded connections. Inspect other appliances near water heater . T urn on electrical switch. Check for blown fuses or tripped breaker . Re s et . Ch ec k f o r so u rc e of tr o ub l e and co r re c t. Replace thermostat. Replace thermostat. Replace thermostat. Set thermostat to desired temperature. Drain. Determine if water treatment[...]

  • Page 19

    19 REP AIR P ARTS LIST FIGURE 13. 1 Element Gasket 2 Anode Rod 3 Element Assembly with Gasket, Anode & Fasteners 4 High Limit with Personnel Barrier 5 - 6 T emperature Sensor and Thermostat 7 Mounting Bracket 8 Front Panel 9 T emperature Control Knob 10 Heat T raps 1 1 Dip T ube 12 T emperature-Pressure Relief V alve *13 Element Bolts 14 Person[...]

  • Page 20

    20 RESIDENTIAL ELECTRIC W ARRANTY THIS W ARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONL Y . In accordance with the warranty terms and conditions specied below . A. O. Smith Corporation (the warrantor) will furnish the ORIGINAL OWNER, 1) a replacement A. O. Smith water heater of equivalent size and current model if the glasslined tank in this wa[...]

  • Page 21

    21 wit hout inva lida ting the rema inde r of the af fect ed provis ion or the other provisions of this warranty . SERVICE AND LABOR RESPONSIBILITY UND ER THIS LIMI TED W ARR ANTY , THE W ARR ANT OR WILL PROVIDE ONL Y A REPLACEMENT WA TER H E AT E R O R PA R T T H E R E O F . T H E O W N E R I S RESPONSIBLE FOR ALL OTHER COSTS. Such costs may inclu[...]

  • Page 22

    22 NOTES: ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ______________________[...]

  • Page 23

    23 NOTES: ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ______________________[...]

  • Page 24

    24 www .aosmithwaterheaters.com[...]