2.2Commissioning

Filling the water heater

1.Close the drain tap.

2.Open the cold water tap to the water heater and open all taps where hot water can be drained for de- aeration. The water heater is filled as soon as cold water flows from all taps.

3.Close all hot water taps.

Putting into operation

1.Check whether the water-heater has been filled with water and whether the gas supply to the water heater is open.

2.Turn the temperature control knob clockwise and place the control knob in the ‘PILOT’-position ().

3.Remove the outer door of the combustion chamber.

4.Keep the control knob pushed-in and press the piezo-ignitor several times until the pilot burns (see drawing 6).

5.Keep the control button () pushed- in for approximately 20 seconds. After releasing the button the pilot should remain burning. If the pilot extinguishes you should wait 5 minutes before repeating the ignition procedure. The size of the pilot flame can be adjusted (see also “Pilot adjustment”).

6.Fit the outer door;

7.Turn the control button to the ‘ON’ () position.

8.Check the burner pressure setting (see drawing 9) and, if necessary, adjust this in accordance with the technical data (see page 10).

9.Place the temperature control button in the correct position, preferably position 4 (approximately 60°C). The appliance will now operate fully automatically.

Drawing 6 - Operation of the gas control block

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A.O. Smith EQ 280 G, EQ 380 G manual Commissioning, Filling the water heater, Putting into operation

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.