12” Max.

Permanent

 

openings to

Closet

the outside or

or other

additional

confined

rooms within

space

the building

 

 

12” Max.

FIGURE 4.

All Air from Inside the Building

When additional air is to be provided to the confined area from additional room(s) within the building, the total volume of the room(s) must be of sufficient size to properly provide the necessary amount of fresh air to the water heater and other gas utilization equipment in the area. If you are unsure that the structure meets this requirement, contact your local gas utility company or other qualified agency for a safety inspection.

Each of the two openings shall have a minimum free area of 1 square inch per 1,000 BTUH of the total input rating of all gas utilization equipment in the confined area, but not less than 100 square inches (Figure 5).

Confined

Space

Permanent

Openings

1 Square inch/1000

BTUH (min. 100 sq. in.)

FIGURE 5.

All Air from Outdoors

Outdoor fresh air can be provided to a confined area either directly or by the use of vertical and horizontal ducts. The fresh air can be taken from the outdoors or from crawl or attic spaces that freely communicate with the outdoors.

Attic or crawl spaces cannot be closed and must be properly ventilated to the outside.

Ductwork must be of the same cross-sectional area as the free area of the opening to which they connect. The minimum dimension of rectangular air ducts cannot be less than three inches.

The size of each of the two openings is determined by the method in which the air is to be provided. Refer to Table 4 to calculate the minimum free area for each opening. Figures 6, 7, 8A and 8B are typical examples of each method.

Louvers and Grilles

In calculating free area for ventilation and combustion air supply openings, consideration must be given to the blocking effect of protection louvers, grilles, and screens. These devices can reduce airflow, which in turn may require larger openings to achieve the required minimum free area. Screens must not be smaller than 1/4” mesh. If the free area through a particular design of louver or grille is known, it should be used in calculating the specified free area of the opening. If the design and free area are not known, it can be assumed that most wood louvers will allow 20 - 25% of free area while metal louvers and grilles will allow 60 - 75% of free area.

Louvers and grilles must be locked open or interconnected with the equipment so that they are opened automatically during equipment operation.

Keep louvers and grilles clean and free of debris or other obstructions.

TABLE 4

Minimum Free Area of Permanent Openings for Ventilation and Combustion Air Supply - All Air from Outdoors Only.

Based on total BTUH input rating for all utilizing equipment within the confined space.

 

Minimum Free Area

 

Opening Source

Per Opening (sq. in.)

Reference Drawing

*Direct to outdoors

1 sq. in, per 4000 BTUH

Figure 6

Vertical Ducts

1 sq. in, per 4000 BTUH

Figure 7

Horizontal Ducts

1 sq. in, per 2000 BTUH

Figure 8A

Single Opening

1 sq. in, per 3000 BTUH

Figure 8B

Example: A water heater with an input rating of 50,000 BTUH using horizontal ducts would require each opening to have a minimum free area of 25 square inches.

Minimum free area = 50,000 BTUH x 1 sq. in. / 2000 BTUH = 25 sq. in.

*These openings connect directly with the outdoors through a ventilated attic, a ventilated crawl space, or through an outside wall.

Consult the local codes of your area for specific ventilation and combustion air requirements.

12

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State Industries GP 6 50YPC T 100, 317998-002 All Air from Inside the Building, All Air from Outdoors, Louvers and Grilles
Page 11 Page 13

317998-002, GP 6 50YPC T 100, GP 6 40YPC T 100 specifications

State Industries has long been at the forefront of technological advancements and innovative design in the industrial market. The company has developed a range of high-efficiency products designed for various applications, including the GP 6 40YPC T 100 and GP 6 50YPC T 100 models, as well as the 317998-002 component. Each product in this lineup is characterized by specific features and cutting-edge technologies tailored to meet diverse operational needs.

The GP 6 40YPC T 100 model boasts a robust construction aimed at durability and resilience in demanding environments. Its design incorporates advanced materials that resist wear and corrosion, ensuring a prolonged lifespan and reduced maintenance requirements. The model operates efficiently even in high-pressure scenarios, making it suitable for various industrial applications, including manufacturing and processing.

In contrast, the GP 6 50YPC T 100 model is designed with a focus on maximizing performance and energy efficiency. It features an optimized airflow system that enhances heat dissipation, preventing overheating and maintaining operational integrity. This model is ideal for applications that require continuous operation, as it minimizes downtime and maximizes productivity. Additionally, the GP 6 50YPC T 100 is equipped with smart technology that monitors performance metrics, providing real-time feedback on operational efficiency.

The 317998-002 component serves as a critical element in both models, acting as a versatile interface that integrates seamlessly with existing systems. It is designed to enhance connectivity and facilitate communication between various industrial components, promoting improved efficiency and ease of integration.

Both the GP 6 models and the 317998-002 feature user-friendly interfaces, allowing operators to easily manage and adjust settings. This focus on user experience helps to reduce training time and improve overall operational efficiency. Furthermore, both models adhere to strict industry standards, ensuring reliability and safety in all conditions.

In summary, State Industries' GP 6 40YPC T 100 and GP 6 50YPC T 100 models, along with the 317998-002 component, represent the pinnacle of innovation and reliability in industrial solutions. Their advanced features, technologies, and characteristics make them suitable choices for organizations looking to enhance productivity and operational efficiency in a variety of applications. With a commitment to quality and performance, State Industries continues to set the standard for excellence in the industry.
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