A.O. Smith Essential Guidelines for Water Heaters
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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, 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 elderly, children, the infirm, or physically/mentally disabled. If anyone using hot water in your home fits into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precautions. In addition to using the lowest possible temperature setting that satisfies your hot water needs, a means such as a mixing valve, should be used at the hot water taps used by these people or at the water heater. Mixing valves are available from your local plumbing contractor. Consult a Qualified Installer or Service Agency. Follow mixing valve manufacturer’s instructions for installation of the valves. Before changing the factory setting on the thermostat, read the “Temperature Regulation” section in this manual.

LOCATING THE NEW WATER HEATER

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 putting the water heater in a new location, the following critical points must be observed:

1.Select a location indoors as close as practical or centralized to the water piping system as possible. The water heater should be located in an area not subject to freezing temperatures.

2.Selected location must provide adequate clearances (4”) for servicing parts such as the thermostats, drain valve, and relief valve. Adequate clearance for servicing this appliance should be considered before installation, such as changing the anodes, etc.

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Contents Residential Electric Safe INSTALLATION, USE and Service Important DefinitionsGeneral Safety Table of Contents IntroductionTypical Installation Uprights /LOWBOYS CompactsTable Tops Mixing Valve Usage Locating the NEW Water HeaterFacts to Consider about the Location Installing the NEW Water Heater Insulation BlanketsWater Piping Water Piping Pressure Test TEMPERATURE- Pressure Relief Valve Filling the Water Heater Valve and Pipe Insulation On Selected ModelsWiring Diagrams Wiring Temperature Regulation Temperature AdjustmentFor Your Information Operational ConditionsThermostat Removal / Replacement Periodic MaintenanceTEMPERATURE-PRESSURE Relief Valve Operation Anode ROD InspectionElement Cleaning / Replacement Page Drain Valve Washer Replacement ServiceLeakage Checkpoints Troubleshooting Guidelines Problem Possible Causes Corrective ActionRepair Parts List Lowboy and Upright Electric Models Single and Dual ElementCompact or Manufactured Mobile Home Electric Models Table TOP Electric Models Residential Electric Warranty Conditions and ExceptionsInstallation Information Service and Labor ResponsibilityClaim Procedure Limitation on Implied WarrantiesPage

ECL-30, ECT-55, ECT-40, ECT-52, ECT-80 specifications

A.O. Smith is a well-respected name in the water heating industry, renowned for its innovative products and technologies. Among its notable offerings are the EJCN-40 and ECLN-40 electric water heaters, as well as the ECS-50 model. These units exemplify A.O. Smith's commitment to efficiency, durability, and user convenience.

The A.O. Smith EJCN-40 is a reliable and efficient electric water heater with a 40-gallon capacity. It features a foam-insulated tank that ensures minimal heat loss, allowing for increased energy efficiency. This model is equipped with two heating elements, providing faster recovery times and ensuring a steady supply of hot water when needed. The EJCN-40 is designed with a user-friendly thermostat that facilitates easy temperature adjustments, enhancing overall user experience.

Similarly, the ECLN-40 shares many features with the EJCN-40 but is specifically designed for commercial applications. This model prioritizes performance and energy efficiency, making it ideal for businesses that require a dependable hot water supply. The ECLN-40 is built with an impressive heat exchanger that maximizes heat transfer, minimizing energy consumption while maintaining optimal performance.

The A.O. Smith ECS-50 stands out with a 50-gallon capacity, catering to residential and light commercial settings. This unit features a high-quality glass-lined tank, which not only provides superior insulation but also helps prevent corrosion. The ECS-50 is designed with a heavy-duty anode rod that extends the life of the tank by minimizing the risk of rusting. Its compact design allows for versatility in installation, while the integrated thermostat provides ease of use.

A.O. Smith's water heaters are equipped with advanced safety features, including automatic temperature controls and pressure relief valves, ensuring safe operation. Additionally, these models come with Energy Star certification, indicating their compliance with strict energy efficiency standards.

In summary, the A.O. Smith EJCN-40, ECLN-40, and ECS-50 water heaters combine cutting-edge technology with robust design to deliver efficient, dependable hot water solutions. With features that cater to both residential and commercial needs, A.O. Smith continues to set the standard for quality and performance in the water heating industry.
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