RESIDENTIAL GAS, NON POWER VENTED, WATER HEATER

SERVICE HANDBOOK

TECHNICAL BULLETIN - 13

MINERAL BUILD-UP

SYMPTOMS

• Rumbling

• Crackling

• Popping

 

 

 

 

CAUSE

With the advent of high input and larger storage tanks in both commercial and

 

residential heaters, deliming has become a necessity of modern maintenance.

 

Lime (CaCO3), is the most notable factor when discussing water hardness.

 

Lime is present in every water system to some degree across the entire

 

United States. Since lime is inversely soluble [the more you heat, the more

 

lime comes out], higher usage, excessive hardness, and increased heating

 

surface can lead to a high incidence of “limed-up” heaters.

Symptoms often include a popping of water trapped under lime deposits or the sizzling of water trapped next to elements, boiling it to steam.

THE FIX

Treatment of a “limed-up“ heater is relatively simple. Since CaCO3 is a base, the easiest way to dissolve it so it can be flushed from the heater is with an acid. The most commonly used is phosphoric acid at a food-grade level.

Two common treatments available from State are Mag-Erad® and Un-Lime®. Any well-stocked plumbing supply house should have a deliming solution available.

The directions on the product should be followed explicitly.

NOTES

For additional information and instructions in deliming water heaters and boilers, please refer to the following pamphlets available from State:

•Why? When & How: To Remove Water Scale from Tank Type Water Heaters

•The Mag-Erad® Method of Cleaning Gas Fired Water Heaters

•Up-N-Down™ Transfer Kit

•All About Deliming Coil Type Water Heaters

State Water Heater

26

Technical Training Department

© 2004

 

Ashland city, TN

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State Industries STC-080 manual Symptoms, Cause
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STC-080 specifications

The State Industries STC-080 is a high-efficiency water heater designed to meet the demands of residential and light commercial applications. With its strategic engineering and innovative technology, it offers a reliable solution for those seeking comfort, efficiency, and sustainability in water heating.

One of the main features of the STC-080 is its exceptional efficiency rating. It operates with an impressive Energy Factor (EF) that not only reduces energy consumption but also translates into lower utility bills for users. The unit utilizes a streamlined heat exchanger design, optimizing heat transfer and minimizing energy loss. This design ensures that users can enjoy hot water on demand without the worry of excessive energy expenditure.

The STC-080 is equipped with advanced heating technologies, including a dual-flame burner system. This system ensures rapid heating while providing consistent water temperature, which is essential for residential applications where demand can vary throughout the day. The integration of advanced controls also allows for precise temperature adjustments, giving users full control over their hot water supply.

Durability and reliability are key characteristics of the STC-080. Constructed from high-quality materials, it features a heavy-duty steel tank with a glass-lined interior that provides excellent corrosion resistance. This not only enhances the product's longevity but also ensures consistent performance even in challenging water conditions. Additionally, the unit includes an anode rod that further protects against corrosion, extending service life and reducing maintenance needs.

The STC-080 is designed for easy installation, with flexibility that accommodates various plumbing setups. Its compact design allows for placement in tighter spaces, making it an ideal choice for homes where space is at a premium.

Safety is another priority with the STC-080. It includes multiple safety features such as a temperature and pressure relief valve, ensuring safe operation. The unit also complies with stringent industry standards, providing peace of mind to homeowners and businesses alike.

In summary, the State Industries STC-080 is a standout water heating solution that combines efficiency, reliability, and advanced technology. With its robust construction and user-friendly features, it caters to the evolving needs of both residential and light commercial users, making it an excellent investment for those looking to enhance their water heating systems while being conscious of energy usage.
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