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Figure 10: Boiler Installed In Confined Space, All Air From Inside

•If providing openings into adjacent rooms is undesirable, combustion and ventilation air can be brought into the boiler room from outdoors. See the instructions under “For Buildings of Unusually Tight Construction”.

B.For Buildings Of Unusually Tight Construction

1)Provide outdoor air through two permanent openings which communicate directly or by duct with the outdoors or spaces (crawl or attic) freely exchanging air with the outdoors. The top edge of the upper opening must be within 12” of the ceiling and the bottom edge of the lower opening must be within 12” of the floor. The minimum dimension of each air opening is 3 inches. Size each opening per the following instructions:

a.Direct communication with outdoors (Figure 13) require a minimum free area of 1 square inch per 4,000 Btu per hour input based on all fuel burning appliances in the boiler room space but not less than 100 square inches. The minimum opening size is 3 inches.

b.Vertical ducts or Openings (Figure 11 and Figure 12) require a minimum free area of 1 square inch per 4,000 Btu per hour input of all fuel burning appliances in the boiler room space but not less than 100 square inches. The cross- sectional area of the duct shall be the same as the required free area opening. The minimum opening size is 3 inches.

c.Horizontal ducts to the outdoors (Figure 14) require a minimum free area of 1 square inch per 2,000 Btu per hour input of all fuel burning appliances in the boiler room space but not less than 100 square inches. The cross-sectional area of the duct shall be the same as the required free area opening. The minimum opening size is 3 inches.

d.Louvers and Grilles of Ventilation Ducts - All outside openings should be screened or louvered. Louvers will prevent the entrance of rain and snow. Louvers and grilles must be fixed in the open position. If motorized louvers are used, they must be interlocked to prevent boiler operation in the event the louvers do not fully open.

Important

When determining the “free area” of an opening, the blocking effects of mesh screens, grills, louvers and the like should be taken into account. Where screens are used, they must be no finer than 1/4” (4 x 4) mesh.

16-325 500506 specifications

The Crown Boiler 16-325 500506 is a highly reliable heating solution designed for residential and light commercial applications. Known for its robust construction and advanced technologies, this boiler is engineered to deliver efficient heating while ensuring longevity and minimal maintenance.

One of the standout features of the Crown Boiler 16-325 is its durable steel construction, which is essential for handling the high temperatures and pressures involved in heating systems. The boiler is typically equipped with a cast iron heat exchanger, known for its excellent heat retention and distribution capabilities. This ensures that the system heats up quickly and maintains consistent temperatures throughout the space.

The boiler's capacity to produce 325,000 BTUs makes it suitable for larger homes or commercial buildings with significant heating demands. Its high input capacity allows for effective operation in areas where traditional systems may struggle to keep up with heating requirements. The Crown Boiler 16-325 employs a forced hot water system, which circulates water through pipes and radiators, providing uniform heat and comfort in indoor spaces.

A significant technological advancement in this model is its integrated control system. The advanced control module automates burner operation, ensuring optimal performance while minimizing energy consumption. This technology not only enhances efficiency but also helps in reducing operational costs, making it a cost-effective choice for users.

Moreover, the Crown Boiler 16-325 is designed with ease of installation and maintenance in mind. It features convenient access panels that simplify the maintenance process, allowing technicians to perform service checks and repairs without extensive downtime. This attribute is particularly beneficial for property managers or homeowners looking for a hassle-free heating solution.

In terms of safety features, the boiler is equipped with a pressure relief valve and a low-water cutoff switch, ensuring safe operation while protecting against potential hazards associated with overheating or lack of water.

Overall, the Crown Boiler 16-325 500506 is a powerful and efficient heating solution that excels in durability and performance. With its advanced technologies, substantial heating capacity, and user-friendly design, it represents an excellent choice for those seeking a reliable heating system that combines efficiency with long-term operational savings.