SECTION III: STEAM Boiler PIPING & TRIM

WARNING

Failure to properly pipe boiler may result in improper operation and damage to boiler or structure.

Do not increase steam boiler input above the ratings.

A.Evaluate the existing steam system.

The single most important factor in determining the expected life cycle of a steam boiler, is the amount of fresh water added to the boiler during operation. Fresh water brings minerals and oxygen into the boiler. These contaminants greatly accelerate corrosion of the cast iron boiler sections.

1.Assure that all system radiators, piping and vents are absolutely leak tight.

a.When a steam boiler is installed in an existing system, ALL air vents should be replaced at the same time. This assures that the new boiler will not be compromised by existing system leaks.

b.If the system contains hidden supply or return piping (hidden behind walls, buried in concrete, etc.) pressure test this piping to assure there are no leaks.

2.Repair any leaks in the system.

3.Install accurate water meter on the fresh water supply to the boiler.

B.Connect system supply and return piping to boiler. See Figure 11 for piping details. Also consult I=B=R Installation and Piping Guides.

CAUTION

Maintain minimum ½ inch clearance from hot water piping to combustible materials.

NOTICE

Do not use softened water in steam boilers. Accelerated boiler corrosion will result. Tie in fresh water supply to the boiler upstream of a water softener.

Oxygen contamination of boiler water will cause corrosion of iron and steel boiler components, and can lead to boiler failure. Burnham's Standard Warranty does not cover problems caused by oxygen contamination of boiler water or scale (lime) build-up caused by frequent addition of water.

Before using copper for steam piping, consider the following characteristics of copper piping:

1)high coefficient of thermal expansion can induce mechanical stresses and cause expansion/ contraction noises if not accounted for in the piping system design and installation,

2)high heat transfer rate (heat loss) of uninsulated copper piping must be included in the normal piping and pickup factors used to size the boiler,

3)soldering or brazing pastes and fluxes that end up in the system can cause poor heat transfer, surging, an unsteady water line and wet steam if not thoroughly removed during the boil out procedure and,

4)galvanic corrosion of the adjoining metal may occur due to dissimilar metals in certain water chemistries if dielectric unions are not used.

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Burnham MST629, MST288, MST396, MST513 manual Section III Steam Boiler Piping & Trim, Evaluate the existing steam system
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MST513, MST396, MST629, MST288 specifications

The Burnham MST series, comprising models MST396, MST629, MST513, and MST288, is renowned for its robust design and exceptional performance in the boiler industry. Each model is engineered to provide optimal efficiency and reliability for residential and commercial heating applications.

The Burnham MST396 is distinguished by its high thermal efficiency and advanced combustion technology. This model features a cast iron heat exchanger which ensures superior heat retention and distribution. The MST396 is equipped with a powerful burner that allows for variable firing rates, maximizing efficiency and extending the lifespan of the unit. Additionally, it includes a built-in electronic ignition system that enhances reliability while reducing the need for frequent maintenance.

Moving to the MST629, this model is designed for larger applications needing higher output. It boasts a significant BTU input and utilizes a multi-stage burner system. This ensures optimal combustion and adapts to varying demand, providing consistent heat without wasting energy. The MST629 also incorporates enhanced insulation and an advanced flue gas venting system to improve safety and minimize energy loss.

The MST513 caters to mid-sized applications with its adaptable performance and user-friendly features. This model is notable for its compact design, making it suitable for installations with limited space. It uses a two-stage burner for efficient energy use and offers a smart control system that monitors performance in real-time. This allows users to make informed decisions about their energy consumption and maintenance needs, ultimately leading to cost savings.

Lastly, the MST288 is the smaller model in the series, ideal for homes and small businesses. Despite its size, it does not compromise on efficiency. The MST288 features a straightforward design, ensuring ease of installation and maintenance. It utilizes a single-stage burner that provides consistent heat output, making it a reliable choice for low-demand applications. The unit is also equipped with adjustable settings, allowing users to tailor their heating needs effectively.

In summary, the Burnham MST series demonstrates a remarkable blend of innovation and practicality across its models. With features like advanced burner technology, efficient heat exchangers, and smart controls, the MST396, MST629, MST513, and MST288 cater to a wide range of heating needs while prioritizing energy efficiency and user comfort. These models stand out in the market, continually setting a standard for performance and reliability in heating solutions.
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