Water Quality and Scale

A complete water analysis and an understanding of system requirements are needed to protect the tankless water heaters and water heating systems from scale. Water analysis shows whether water is hard or soft. Hard water, unless treated, will cause scaling or liming of the heat exchanger. The rate of scaling increases with temperature and usage because calcium carbonate and other scaling compounds lose solubility (fall out of solution) at higher temperatures. For example, for every 20°F over 140°F, the rate of scale increases by a factor of 2 (See figure below). Reference target water quality levels found in the operation / installation manual and consider water treatment if these levels are exceeded. *

LIME DEPOSITED, lb/yr

210

180

150

120

90

60

30

0

BASED ON 10 grains/gal HARDNESS

*

180°F

170°F

160°F

 

 

 

 

 

 

 

150°F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

140°F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120°F

300 0

900

1500

2100

2700

3300

3900

WATER USAGE, gal/day

*Source 2003 ASHRAE Handbook HVAC Applications

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American Water Heater ATO-305-P, ATO-505-N, ATI-705-N, ATI-505-P, ATI-305-N Water Quality and Scale, Lime DEPOSITED, lb/yr

ATO-705A-P, GT-305-NI, GT-705-NI, ATI-505-N, ATI-705A-N specifications

American Water Heater has long been regarded as a trusted name in the water heating industry, and among its impressive lineup is the ATI-705A-P, GTS-705-PEA, GT-705-PE, GT-305-NE, and GTS-705-NEA models. Each of these units incorporates cutting-edge technologies and design features, ensuring high-performance and energy-efficient water heating solutions for modern households.

Starting with the ATI-705A-P model, it stands out for its high-efficiency water heating capabilities. This unit is equipped with a powerful gas burner that ensures rapid heating. It features an intuitive digital thermostat, which allows users to easily set their desired water temperature, ultimately improving user satisfaction and comfort. The ATI-705A-P also incorporates a durable tank lining that prevents corrosion, extending the lifespan of the product.

Moving on to the GTS-705-PEA and GT-705-PE models, these units are known for their eco-friendly design and energy efficiency. They use advanced insulation technology to minimize heat loss, ensuring that energy is conserved while still delivering hot water on demand. Both models are equipped with high-performance heating elements that provide a quick recovery rate, making them ideal for households with higher hot water needs.

The GT-305-NE model is particularly noteworthy, equipped with a powerful burner that provides consistent hot water supply, making it an excellent choice for larger homes. Its compact design allows for versatile installation options, while still maintaining a large capacity. This model also includes a high-efficiency rating, ensuring energy savings and environmental benefits.

Finally, the GTS-705-NEA offers an innovative approach with its user-friendly features and smart technology integration. It provides Wi-Fi connectivity, allowing users to monitor and control their water heater remotely. This added functionality ensures convenience and efficiency, keeping hot water readily available at all times.

In summary, the American Water Heater ATI-705A-P, GTS-705-PEA, GT-705-PE, GT-305-NE, and GTS-705-NEA models present a range of impressive features and characteristics that cater to diverse household needs. With a strong focus on energy efficiency and advanced technology, these models not only deliver reliable hot water but also contribute positively to the environment, making them wise investments for any home.