ForYour Safety

Follow instructions below to prevent severe personal injury, death or substan- tial property damage:

●Do not use crankcase drainings or any oil containing gasoline. See burner manual for proper fuel oil.

●Do not attempt to start burner when excess oil has accumulated in combustion chamber, when unit is full of vapor, or when combus tion chamber is very hot.

●Do not start burner unless collector hood, flue cap, jacket cap, breeching and burner mount- ing door are secured in place.

●Never burn garbage or paper in the boiler.

●Never leave combustible material around boiler.

●DO NOT TAMPER WITH UNIT OR CONTROLS. Always follow specific instructions when starting up boiler or performing routine maintenance or service.

Follow instructions below to prevent severe personal injury, death or substan- tial property damage:

●To avoid electric shock, turn off electrical supply at switch on boiler and additional external switches before performing service.

●To avoid severe burns, allow boiler to cool before performing service.

●Do not block flow of combustion or ventilation air to boiler.

●Boiler must be connected to a flue with sufficient draft at all times to assure proper operation.

●Do not use this boiler if any part has been under water. Electrical and mechanical failures may cause electric shock and fire risks. Immediately call a qualified service technician to inspect chimney or vent, boiler and burner. Have the boiler flueways cleaned and have the following replaced:

—all electrical and mechanical controls

—electrical wiring

—oil burner and controls

—insulation and chamber lining

Tips for steam systems:

●Check boiler and system piping for leaks. Continual makeup water will reduce boiler life. Minerals can build up in sections, reducing heat transfer and causing cast iron to overheat, resulting in section failure.

Failure to maintain recom- mended pH and to repair leaks can cause section iron corrosion, leading to section failure and leaks. Do not use petroleum- based sealing or stop-leak compounds in boiler systems. Damage to system components can result.

●Boiler water pH 7.0 to 8.5 is recommended. For pH conditions outside 7.0 to 8.5 range or unusually hard water areas (above 7 grains hardness), consult local water treatment company.

●Do not add cold water to hot boiler. Thermal shock can cause sections to crack.

●Clean newly installed steam boiler to remove oil, grease, and other foreign material. Failure to properly clean can result in violent water level fluctuations, water passing into steam mains, or high maintenance costs on strainers, traps and and vents. A qualified service techni- cian should skim the boiler by following instructions on page 10 of this manual.

Part No. 550-141-830/1202

550-141-830/1202 specifications

The Weil-McLain 550-141-830/1202 is a high-efficiency boiler designed for water heating and heating applications in residential and commercial environments. Known for its reliability and performance, this model incorporates advanced technologies that enhance energy efficiency and reduce operating costs.

One of the standout features of the Weil-McLain 550-141-830/1202 is its robust construction, utilizing durable materials to ensure longevity and resistance to wear and corrosion. This boiler is designed with a high output capacity, providing ample heat for various applications, making it suitable for larger homes or commercial establishments. The unit is also engineered to accommodate multiple zoning configurations, allowing for customizable heating solutions tailored to specific needs.

This model incorporates a state-of-the-art control system that optimizes performance by adjusting to the specific demands of the heating system. This smart technology enables precise temperature control and enhances energy savings. Additionally, the Weil-McLain 550-141-830/1202 is compatible with smart home systems, providing users with the ability to monitor and control heating functions remotely.

Efficiency is further enhanced by the incorporation of a modulating burner, which adjusts its output based on the heating needs of the space. This allows for significant reductions in fuel consumption while maintaining comfort. The unit is also designed to work with various fuel types, including natural gas and propane, offering flexibility to homeowners and businesses alike.

Another significant characteristic is its compact design, which allows for versatile installation options, even in tight spaces. The appliance is also equipped with advanced safety features, including low water cutoff, pressure relief valves, and venting options that ensure safe and efficient operation.

Maintenance is a key consideration with the Weil-McLain 550-141-830/1202. Its user-friendly design allows for easy access to components, facilitating routine inspections and servicing. This ease of maintenance contributes to its reliability and prolongs the lifespan of the boiler.

In summary, the Weil-McLain 550-141-830/1202 boiler is a sophisticated heating solution characterized by its efficiency, durability, and advanced technology. Ideal for both residential and commercial applications, it ensures optimal comfort while keeping energy costs manageable. With its robust features and ease of use, it remains a preferred choice among homeowners and professionals in the heating industry.