Commissioning, 3 Use | A.O. Smith EQ 115 G, EQ 155 G, EQH 200 G

3.FOR THE USER

3.1Commissioning

Warning

Installing and commissioning (for the first time) of this water heater should only be carried out by a qualified competent heating engineer.

3.1.1Filling 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 drain taps.

3.1.2Putting into operation

1.Check whether the device 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 and inner door of the combustion chamber.

4.Keep the control button pushed-in and press the piezo-ignitor several times until the pilot burns (see Figure 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.

6.Subsequently remount the inner and outer door; see “Mounting the inside door”.

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

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

3.1.3 Use

The appliance is under water supply pressure (with a maximum of 8 bar). The amount of cold water that is added is equal to the amount of hot water used. The gas control block automatically regulates the gas supply. The main burner will ignite as soon as a reduction in water temperature is sensed by the control thermostat. The main burner will shut down as soon as the water temperature returns to the preset temperature.

Position 1 = approximately 30°C Position 2 = approximately 40°C Position 3 = approximately 50°C Position 4 = approximately 60°C Position 5 = approximately 70°C

Higher water temperatures will cause more scale build up in the appliance. It is for this reason that it is recommended to place the temperature control knob in position 4 as the accumulation of scale will be reduced at lower temperatures. In addition a safety thermostat has been fitted. This thermostat completely shuts off the gas supply if the water temperature reaches 82°C, also extinguishing the pilot burner.

3.1.4Putting out of operation

1.For short periods of time the control knob should be turned to (✸); the pilot keeps burning.

2.For longer periods of time the knob should be turned to the (●) position; the pilot is extinguished.

3.Close the gas tap in the supply pipe. In case of longer interruptions or in the event of risk of frost it is recommended to also close the cold water tap and to drain the appliance after cooling (open the drain tap; it is possible to connect a drain hose to the drain tap; open the nearest hot water drain point to prevent airlocks).

To be able to drain the appliance completely it should be disconnected

EQH 200 G, EQ 115 G, EQ 155 G specifications

A.O. Smith, a reputable name in the water heating industry, has designed premium water heaters that cater to various needs, including the EQ 155 G, EQ 115 G, and EQH 200 G models. These units emphasize efficiency, reliability, and advanced technology to provide users with optimal hot water solutions.

The A.O. Smith EQ 155 G is a gas water heater that boasts a 155-gallon capacity. Designed for high-demand households, it features an impressive recovery rate, allowing it to deliver hot water quickly. One of the standout features is its Energy Factor rating, which ensures energy efficiency and reduced operating costs. The EQ 155 G is also equipped with a durable enamel-coated tank that resists corrosion, ensuring longevity.

Similarly, the EQ 115 G model offers a slightly smaller capacity of 115 gallons, making it an excellent choice for medium-sized households. This gas-powered heater incorporates cutting-edge technology to maximize heat retention and minimize water heating costs. With features such as a patented Venturi mixing system, it provides uniform hot water distribution while minimizing energy wastage. Its slim design also allows for easy installation in tight spaces.

On the other hand, the EQH 200 G is a hybrid model that combines the benefits of both gas and heat pump technology. With a capacity of 200 gallons, it is designed for large families or commercial applications. The EQH 200 G utilizes advanced heat pump technology for energy-efficient heating, making it one of the most efficient options on the market. This model is particularly suitable for users looking to reduce their carbon footprint while enjoying consistent hot water supply.

All three models come equipped with user-friendly digital displays, allowing for easy temperature adjustments and monitoring. Moreover, these units feature robust safety mechanisms, including leak detection and temperature controls, to ensure user safety.

In summary, the A.O. Smith EQ 155 G, EQ 115 G, and EQH 200 G are innovative water heating solutions tailored to meet diverse requirements. With advanced technologies, high energy efficiency, and durability, these models exemplify A.O. Smith's commitment to quality and customer satisfaction in the water heating industry.