Chemical Vapor Corrosion

6.Louvers and Grilles: In calculating free area, consideration should be given to the blocking effect of louvers, grilles or screens protecting openings. Screens used should not be smaller than 1/4 in. (0.64cm) mesh. If the free area through a design of louver or grille is known, it should be used in calculating the size opening required to provide the free area speciﬁed. If the design and free area is not known, it may be assumed that wood louvers will be 20-25 percent free area and metal louvers and grilles will have 60-75 percent free area. Louvers and grilles should be ﬁxed in the open position or interlocked with the equipment so that they are opened automatically during equipment operation.

7.Special Conditions Created by Mechanical Exhausting or Fireplaces: operation of exhaust fans, ventilation systems, clothes dryers or fireplaces may create conditions requiring special attention to avoid unsatisfactory operation of installed gas utilization equipment.

CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN CHEMICALVAPORS. SUCH CORROSION MAY RESULT IN FAILURE AND RISK OF ASPHYXIATION.

Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium and sodium chloride (water softener salt), waxes, and process chemicals are typical compounds which are potentially corrosive.

Do not store products of this sort near the heater. Also, air which is brought in contact with the heater should not contain any of these chemicals. If necessary, uncontaminated air should be obtained from remote or outside sources. The limited warranty is voided when failure of water heater is due to a corrosive atmosphere. (See limited warranty for complete terms and conditions).

WATER PIPING

HOTTER WATER CAN SCALD:

Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, dish washing, cleaning and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely to be permanently injured by hot water than others. These include the elderly, children, the physically or developmentally disabled. If anyone using hot water ﬁts into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precautions. In addition to using the lowest possible temperature setting that satisﬁes your hot water needs, a means such as a *mixing valve, should be used at the hot water taps used by these people or at the water heater (see Figure 3). Valves for reducing point of use temperature by mixing cold and hot water are also available:

Consult a Qualiﬁed Installer or Service Agency. Follow manufacturer’s instructions for installation of the valves. Before changing the factory setting on the thermostat, read the “Temperature Regulation” section in this manual.

This water heater should not be connected to any heating systems or component(s) used with a non-potable water heating appliance.

All piping components connected to this unit should be suitable for use with potable water.

Toxic chemicals, such as those used for boiler treatment should not be introduced into this system.

When the system requires water for space heating at temperatures higher than required for domestic water purposes, a mixing valve must be installed. Please refer to Figure 3 for suggested piping arrangement.

CLOSED WATER SYSTEMS

Water supply systems may, because of code requirements or such conditions as high line pressure, among others, have installed devices such as pressure reducing valves, check valves, and back ﬂow preventers. Devices such as these cause the water system to be a closed system.

THERMAL EXPANSION

As water is heated, it expands (thermal expansion). In a closed system, the volume of water will increase. As the volume of water increases, there will be a corresponding increase in water pressure due to thermal expansion. Thermal expansion can cause premature tank failure (leakage). This type of failure is not covered under the

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0710 316888-002, GPH-90N specifications

The State Industries GPH-90N,0710 316888-002 is a high-quality water heater designed to meet the demands of both residential and commercial applications. Renowned for its durability and efficiency, this model serves as an essential component for facilities requiring reliable hot water supply.

One of the standout features of the GPH-90N is its impressive heating capacity, which allows it to deliver hot water quickly and effectively. This model boasts a heating input of 90,000 BTU per hour, making it suitable for large households or commercial establishments. The unit is designed to maintain consistent water temperatures, ensuring that users have access to hot water whenever needed.

The GPH-90N is also equipped with advanced technologies that enhance its operational efficiency. It features a modulating gas burner that adjusts its output to match the flow rate of hot water demanded, thereby optimizing energy use and minimizing operating costs. This technology not only improves performance but also extends the lifespan of the water heater.

Durability is a key characteristic of the State Industries GPH-90N. The unit is crafted from high-quality materials, including a robust stainless steel tank that resists corrosion and ensures long-lasting performance. This corrosion-resistant design is particularly beneficial in areas with hard water, where mineral deposits can be a significant concern. Additionally, the tank is insulated with high-density foam, which helps to maintain heat and reduce standby heat loss.

A crucial aspect of the GPH-90N is its user-friendly features. The control panel is straightforward, allowing users to adjust settings with ease. The water heater is also designed for simple maintenance, ensuring that annual servicing can be carried out with minimal disruption.

Safety is paramount in the design of the GPH-90N. It includes multiple safety features, such as a pressure relief valve and a safety shut-off mechanism, which provide peace of mind for users. This ensures that the unit operates safely under varying conditions.

In conclusion, the State Industries GPH-90N,0710 316888-002 is a powerful and efficient water heater that combines advanced technology with durable construction. Its high heating capacity and user-friendly design make it a reliable choice for both residential and commercial applications, ensuring that hot water is always available when needed.

State Industries 0710 316888-002 Chemical Vapor Corrosion, Water Piping, Closed Water Systems

Models: 0710 316888-002 GPH-90N