A.O. Smith 6-119, EJC-30, EJCN-40, ECT-80, ESTT-30, ESTT-40, ECT-52, ECT-66, ECS-30, ECLN-40, ECT-40, ECT-30

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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.

FIGURE 15.

6.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 removed from the thermostat.

FIGURE 16.

B.Models with Upper or Lower Thermostat with High Limit: Lift out the tab as shown below to unclip the terminal cover from the thermostat. The terminal cover can now be removed from the thermostat.

FIGURE 17.

7.Disconnect the two wires on the element and unscrew the old element from the tank.

FIGURE 18.

8.Clean the area around the element opening. Remove any sediment from or around the element opening and inside the tank.

9.If you are cleaning the element you have removed, do so by scraping or soaking in vinegar or a deliming solution.

NOTE: Replacement elements must (1) be the same voltage and

(2)no greater wattage than listed on the model rating plate affixed to the water heater.

10.A new gasket should be used in all cases to prevent a possible water leak. Place the new element gasket on the threaded side of the cleaned or new element and screw into tank, securing tightly using an element wrench.

FIGURE 19.

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Contents Residential Electric Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Introduction Table of ContentsTable Tops Typical InstallationUprights /LOWBOYS Compacts Facts to Consider about the Location Mixing Valve UsageLocating the NEW Water Heater Water Piping Installing the NEW Water HeaterInsulation Blankets Water Piping Pressure Test TEMPERATURE- Pressure Relief Valve Valve and Pipe Insulation On Selected Models Filling the Water HeaterWiring Diagrams Wiring Temperature Adjustment Temperature RegulationOperational Conditions For Your InformationTEMPERATURE-PRESSURE Relief Valve Operation Periodic MaintenanceThermostat Removal / Replacement Anode ROD InspectionElement Cleaning / Replacement Page Service Drain Valve Washer ReplacementLeakage Checkpoints Problem Possible Causes Corrective Action Troubleshooting GuidelinesLowboy and Upright Electric Models Single and Dual Element Repair Parts ListCompact or Manufactured Mobile Home Electric Models Table TOP Electric Models Conditions and Exceptions Residential Electric WarrantyClaim Procedure Service and Labor ResponsibilityInstallation Information 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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