Connecting Supply and Return Piping

FIGURE 3

FIGURE 4

shall be permitted where the equipment has clearances of at least 1 inch from the sides, 1 inch from the back, and 6 inches from the front of the boiler. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely communicate with the outdoors. The openings must have a minimum free area of 1 square inch per 3000 Btu per hour of the total input rating of all equipment located in the enclosure. The free area must be no less than the sum of the areas of all vent connectors in the confined space.

6.In calculating free area using louvers, grilles or screens for the above, consideration shall be given to their blocking effect. Screens used shall not be smaller than 1/4 inch mesh. If the free area through a design of louver or grill 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 have 20-25% free area and metal louvers and grilles will have 60-75% free area. Louvers and grilles should be fixed in the open position or interlocked with the boiler so they are opened automatically during the boiler operation.

IMPORTANT: Circulators in the following illustrations are mounted on the system supply side, but mounting on the system return side is also acceptable practice.

1. Connect supply and return piping as suggested in figure 5 on page 7, when the boiler is used in connection with refrigerated systems.

A. The chilled medium MUST BE PIPED IN PARALLEL with the boiler.

B. Use appropriate valves to prevent the chilled medium from entering the heating boiler.

a. During heating cycle open valves A and B, close valves C and D. b. During cooling cycle, open valves C and D, close valves A and B.

C. Maintain a minimum clearance of one inch to hot water pipes.

2.When the boiler is connected to heating coils located in air handling units where they may be exposed to refrigerated air circulation, the boiler piping system MUST BE supplied with flow control valves or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle.

PAGE 6

Gas-fired Boiler specifications

The Utica Gas-fired Boiler is a highly efficient heating solution designed for residential and commercial applications. Recognized for its reliability and durability, the Utica Gas-fired Boiler utilizes gas as a clean energy source, which not only reduces emissions but also lowers operational costs. With various models available, this boiler caters to a wide range of heating needs, making it a versatile choice for different environments.

One of the main features of the Utica Gas-fired Boiler is its impressive energy efficiency. Many models are equipped with advanced combustion technology that ensures optimal fuel utilization, resulting in lower gas consumption and environmental impact. This efficiency is often reflected in high AFUE (Annual Fuel Utilization Efficiency) ratings, confirming the boiler's ability to convert a significant portion of fuel into usable heat.

The Utica Gas-fired Boiler employs a diversified product line, which includes both steam and hot water boiler systems. This flexibility allows users to choose the system that best suits their heating requirements. Additionally, the boilers are designed with user-friendly controls that facilitate easy operation and maintenance.

In terms of technology, Utica integrates multiple innovative features into their gas-fired boilers. The use of a modulating gas valve enables the boiler to adjust its output to match the heating demand, promoting energy efficiency and comfort. Many models also utilize a sealed combustion design that pulls in outside air for combustion, enhancing safety and improving performance in tightly sealed homes.

Moreover, the construction of Utica Gas-fired Boilers emphasizes durability. They are built from high-quality materials like cast iron or stainless steel, ensuring a long lifespan and resistance to corrosion. The robust design also facilitates easy servicing, with accessible components that minimize downtime in the event of maintenance or repairs.

Safety is another critical aspect of the Utica Gas-fired Boiler design. Features such as built-in safety controls, pressure relief valves, and flame rollout switches contribute to a safer operating environment.

In conclusion, the Utica Gas-fired Boiler exemplifies an exceptional heating solution characterized by efficiency, flexibility, and durability. With advanced technologies and a strong commitment to safety, it remains a preferred choice for those seeking reliable heating options for their spaces. The combination of low emissions, high performance, and user-friendly operation makes it ideal for modern heating applications.