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  5. Instruction Manual

A.O. Smith AOSRE50400 Instruction Manual

Manual is about: 2.5 GALLON 120 VOLT WATER HEATER

Summary of AOSRE50400

  • Page 1

    Printed 0707 85834-000 keep this manual in the pocket on heater for future reference when ever maintenance adjustment or service is required. All technical and warranty questions: should be directed to the local dealer from whom the water heater was purchased. If you are unsuccessful, please write t...

  • Page 2

    Safe installation, use and service your 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 potent...

  • Page 3: General Safety

    3 general safety.

  • Page 4: Introduction

    4 thank you 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 electri...

  • Page 5: Typical Installation

    5 typical installation mixing valve usage figure 2. Water (potable) heating: all models are considered suitable for water (potable) heating only. Hotter water can scald: water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, ...

  • Page 6

    6 facts to consider about the location carefully choose an indoor location for the new water heater, because the placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. Whether replacing an old water heater or putt...

  • Page 7

    7 installing the new water heater mounting mounting - drywall (hollow wall) 1. The selected wall or cabinet must be capable of supporting 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...

  • Page 8

    8 figure 4. Water 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: “water distribution system: all water piping in the water distribution system sh...

  • 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 ...

  • Page 10: Wiring Diagram

    0 wiring diagram figure 5..

  • Page 11: Wiring

    Wiring never use the water heater unless it is completely full of water. To 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. You must provide all wiring of the proper size outside of the wat...

  • Page 12: Temperature Regulation

    Hotter water can scald: water heaters are intended to produce hot water. Water 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 ...

  • Page 13: For Your Information

    3 thermal expansion water supply systems may, because of such events as high line pressure, frequent cut-offs, the effects of water hammer among others, have installed devices such as pressure reducing valves, check valves, back flow preventers, etc. To control these types of problems. When these de...

  • Page 14: Periodic Maintenance

    4 not cause any property damage, as the water may be extremely hot, see figure 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 th...

  • Page 15

    5 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. Thermostat removal / replacement removal 1. Turn off and unplug the water heater from the electrical outlet. 2. Remove the front panel, see the “removing the...

  • Page 16

    16 water inlet and outlet, open the nearest hot water tap and follow filling instructions. Never use this water heater unless it is completely full of water. To prevent damage to the tank and heating element, the tank must be filled with water. Water must flow from the hot water faucet before turnin...

  • Page 17: Leakage Checkpoints

    7 leakage checkpoints read this manual first. 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 ...

  • Page 18: Troubleshooting Guidelines

    8 tighten threaded connections. Inspect other appliances near water heater. Turn on electrical switch. Check for blown fuses or tripped breaker. Reset. Check for source of trouble and correct. Replace thermostat. Replace thermostat. Replace thermostat. Set thermostat to desired temperature. Drain. D...

  • Page 19: Repair Parts List

    19 repair parts list figure 13. 1 element gasket 2 anode rod 3 element assembly with gasket, anode & fasteners 4 high limit with personnel barrier 5-6 temperature sensor and thermostat 7 mounting bracket 8 front panel 9 temperature control knob 10 heat traps 11 dip tube 12 temperature-pressure relie...

  • Page 20

    0 residential electric warranty this warranty is applicable to the original owner only. In accordance with the warranty terms and conditions specified below. A. O. Smith corporation (the warrantor) will furnish the original owner, 1) a replacement a. O. Smith water heater of equivalent size and curr...

  • Page 21

    Without invalidating the remainder of the affected provision or the other provisions of this warranty. Service and labor responsibility under this limited warranty, the warrantor will provide only a replacement water heater or part thereof. The owner is responsible for all other costs. Such costs ma...

  • Page 22: Notes:

    Notes: ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________...

  • Page 23: Notes:

    3 notes: ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ __________________________...

  • Page 24

    4 www.Aosmithwaterheaters.Com.