Weil-McLain 550-141-830/1202 manual Controls requiring annual service

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Detailed Service Procedures

Controls requiring annual service:

FLOAT-TYPE LOW WATER CUTOFF:

Follow instructions to blowdown cutoff on page 4. Also refer to instructions from cutoff manufac- turer in envelope assembly provided with boiler.

PROBE-TYPE LOW WATER CUTOFF: Cutoff must be removed and inspected and cleaned annually. Refer to cutoff manufacturer's instructions in envelope assembly provided with boiler.

STEAM RELIEF VALVE:

Check operation of steam relief valve. Follow instructions on label fastened to relief valve.

Scald potential. Do not check operation of relief valve unless discharge piping has been installed according to Boiler Manual. If piping is not in place, a qualified service technician must properly install piping.

Gauge Glass:

To clean glass:

1.Close lower gauge glass cock and carefully open petcock below glass to blow water and sediment out of glass by steam pressure.

2.Slowly open lower gauge glass cock and allow a small amount of water to flush out through the open petcock.

3.Close petcock and fully open lower gauge cock. The water level should immediately rise to its proper level.

4.If gauge glass breaks, close off both gauge cocks and loosen glass retaining nuts to

remove gauge glass. Do not use thin glass tubing as a replacement.

General description of control operation:

LOW WATER CUTOFF:

Shuts down boiler if there is a low water condi- tion.

STEAM RELIEF VALVE:

Provides discharge if boiler pressure exceeds 15 psig.

PRESSURE LIMIT CONTROL:

If high steam pressure occurs, control shuts down burners until pressure drops. Limit should be set higher than design pressure of system. Op- erating control can be set at 5 psig and adjusted to comfort level. Normal operation is usually less than 5 psig. At certain times the system may operate under vacuum conditions.

GAUGE GLASS:

Indicates boiler water level. Cold fill water level should correspond to line stamped on boiler jacket. When boiler operates, water level will fluc- tuate.

PRESSURE GAUGE:

Provides reading of boiler pressure. Maximum boiler pressure is 15 psig.

TANKLESS WATER HEATER:

Weil-McLain tankless heater ratings are based on 2000F boiler water temperature. To get rated out- put, set tankless heater control to 2000F. Control can be adjusted to meet system hot water require- ments.

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Part No. 550-141-830/1202

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Contents Part No -141-830/1202 Hazard Definitions Read This Page FirstTips for steam systems ForYour SafetyRoutine Maintenance Schedule SGO with float-type low water cutoff Start-upSGO with probe-type low water cutoff Common Problems Common Causes Possible Corrections Annual Service Check List Cleaning boiler flueways Detailed Service ProceduresFill the system General description of control operation Controls requiring annual servicePart No -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.
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