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 air locks).

To be able to drain the appliance completely it should be disconnected and tilted slightly in the direction of the drain tap.

2.5Temperature regulation

The appliance is under water supply pressure (maximum 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

thermostat. The main burner will shut down as soon as the preset temperature is achieved.

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

At high water temperatures there is more scale buildup 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. 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.

AOS 0485

Figure 8 - Setting the pilot

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A.O. Smith EQ 115 G, EQ 155 G, EQH 200 G manual Temperature regulation, Setting the pilot
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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.
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