2.8.3Decalcification

Formation of lime scale depends on the quality and quantity of the water used. In addition higher water temperatures lead to more deposit in the appliance. A temperature setting of 60°C is recommended in order to keep the calcification at a low level. Decalcification should be attempted with the proper means. For extensive information a decalcification instruction is available.

2.8.4Spare parts

To be able to order spare parts it is important to note the type of appliance as well as the serial number of the appliance. Based on this information the data concerning the spare parts can be determined.

2.9Inlet combination

Not applicable in U.K. and Ireland.

2.10 Fault finding

In case of failure the following should be checked.

Safety thermostat

All appliances have been fitted with a safety thermostat that shuts off the gas supply when the water temperature is too high. The safety thermostat remains activated until the water temperature drops below the safety temperature. The water heater must be reignited manually. The regulation thermostat should be set to a lower water temperature. If the pilot is extinguished repeatedly at higher temperatures than normal, this indicates that the safety thermostat is operating.

Drawing 11- Mounting burner-set

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A.O. Smith EQ 380 G, EQ 280 G manual Inlet combination, Fault finding, Decalcification, Spare parts, Safety thermostat

EQ 280 G, EQ 380 G specifications

A.O. Smith EQ 380 G and EQ 280 G are high-performance water heaters known for their innovative features and advanced technologies. These gas water heaters offer homeowners reliability, efficiency, and durability, making them ideal choices for various residential applications.

The EQ 380 G model is designed to handle high-demand situations, with a striking first-hour delivery rate of up to 80 gallons. This ensures that households with high hot water usage, such as those with multiple bathrooms or large families, have adequate supply at all times. The EQ 280 G, while slightly smaller, still provides impressive performance with a first-hour rating that accommodates medium-sized homes.

One of the standout features of both models is their energy efficiency. They are equipped with a high-efficiency gas burner that significantly reduces energy consumption compared to traditional water heaters. The integration of advanced insulation technology minimizes heat loss, ensuring that the water heater operates economically and in compliance with stringent energy regulations. This efficiency not only lowers utility bills but also contributes to a more sustainable environment.

The EQ series incorporates a robust digital control system that allows for precise temperature settings and monitoring. Users can easily adjust the temperature according to their preferences for comfort and safety. Additionally, the intuitive digital display makes it simple for homeowners to keep track of their water heater's performance and system notifications.

Safety is paramount in the design of the EQ 380 G and EQ 280 G. Both models feature an advanced flame arrestor design that helps prevent backdrafting and enhances overall safety during operation. Furthermore, they come equipped with a built-in thermostat and pressure relief valve, ensuring safe temperature regulation and maintaining optimal performance.

Durability is another hallmark of the EQ series. Constructed with high-quality materials, these units come with a 6-year limited warranty, providing peace of mind to homeowners regarding their investment. The tank's glass-lined coating protects against corrosion, ensuring that the water heater remains functional and efficient for years to come.

In summary, A.O. Smith EQ 380 G and EQ 280 G water heaters exemplify outstanding technology and features tailored to meet the needs of modern households. With impressive efficiency, reliable performance, and advanced safety measures, these models stand out in the competitive market of water heating solutions, delivering both comfort and value for homeowners.