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A.O. Smith 185762-000 Instruction Manual

Manual is about: A.O. Smith Residential Electric Water Heater Instruction Manual

Summary of 185762-000

  • Page 1

    1 printed in the u.S.A 0207 part no. 185762-000 supersedes part no. 184639-002 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 heate...

  • Page 2

    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 pote...

  • 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 • gama - gas appliance m...

  • Page 5: Typical Installation

    5 typical installation figure 1. Uprights / lowboys compacts table tops install vacuum relief in cold water inlet line as required by local codes. Install suitable drain pans under heaters to prevent damage due to leakage. Refer to water heater location, see “installing the new water heater” section...

  • Page 6: Mixing Valve Usage

    6 mixing valve usage 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, dish washing, and other sanitiz...

  • Page 7

    7 installing the new water heater water piping 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, cleaning and other sanitizing needs can scald and permanently injure you upon contact...

  • Page 8

    8 note: to protect against untimely corrosion of hot and cold water fittings, it is strongly recommended that di-electric unions or couplings be installed on this water heater when connected to copper pipe. Figure 3 shows the typical attachment of the water piping to the water heater. The water heat...

  • Page 9

    9 temperature- pressure relief valve 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 mat...

  • Page 10

    10 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 relief valve with a new one. Filling the water heater never use th...

  • Page 11: Wiring Diagrams

    11 wiring diagrams for actual wiring circuit of unit - reference circuit type listed on rating plate. Figure 6..

  • Page 12: Wiring

    12 wiring never use 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 turning on power. You must provide all wiring of the proper size outside of the water heater...

  • Page 13: Temperature Regulation

    13 temperature adjustment to change the temperature setting: note: it is not necessary to adjust the upper thermostat. However, if it is adjusted above the factory set point (120°f (49°c)) it is recommended that it not be set higher than the lower thermostat setting. 1. Turn off the heater electrica...

  • Page 14: For Your Information

    14 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 d...

  • Page 15: Periodic Maintenance

    15 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 relief valve with a new one. If the temperature-pressure relief va...

  • Page 16

    16 1. Turn “off” the electric power supply to the water heater. 2. Remove the outer door. Remove or fold up the insulation pad. 3. A. Models with lower thermostat without high limit: lift out the tab as shown below to unclip the terminal cover from the thermostat. The terminal cover can now be remov...

  • Page 17

    17 the water passing out of the drain valve may be extremely hot. To avoid being scald, make sure all connections are tight and that the water flow is directed away from any person. 4. Remove the screw(s) securing the outer door, and remove door. Figure 14. 5. Remove or fold up the insulation. Figur...

  • Page 18

    18 11.Close the water heater drain valve by turning the handle to the right (clockwise). The drain valve is on the lower front of the water heater. 12.Open the cold water supply valve to the water heater. Note: the cold water supply valve must be left open when the water heater is in use. 13.To insu...

  • Page 19: Leakage Checkpoints

    19 leakage checkpoints read this manual first. Then before checking the water heater 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 connectio...

  • Page 20: Troubleshooting Guidelines

    20 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 thermostats. Replace element. Replace thermostats. Set thermostats to desired ...

  • Page 21: Repair Parts List

    21 repair parts list lowboy and upright electric models (single and dual element) key no. Part description 1 temperature-pressure relief valve 2 secondary anode rod/nipple w/heat trap* 3 element w/gasket 4 element gasket 5 lower outer door 6 terminal cover (double element) 7 upper thermostat w/hi li...

  • Page 22: Repair Parts List

    22 repair parts list when ordering repair parts, always give the following information: • model number • serial number • voltage and element wattage • part description this is a repair parts list, not a packing list. Now that you have purchased this water heater, should a need ever exist for repair ...

  • Page 23: Repair Parts List

    23 repair parts list table top electric models key no. Part description 1 porcelain top 2 temperature and pressure relief valve 3 primary anode rod 4 upper thermostat w/hi limit 5 dip tube 6 element w/gasket 7 element gasket 8 thermostat bracket (ea.) 9 terminal cover 10 outer door (ea.) 11 lower th...

  • Page 24

    24 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 cur...

  • Page 25

    25 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...

  • Page 26: Notes:

    26 notes: ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ______________________________...

  • Page 27: Notes:

    27 notes: ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ______________________________...

  • Page 28

    28 www.Aosmithwaterheaters.Com.