Weil-McLain 550-141-826/1201 manual Provide air for combustion and ventilation

Page 5

Before Installing Boiler CONTINUED

Provide air for combustion and ventilation:

Adequate combustion and ventilation air:

•Assures proper combustion.

•Reduces risk of severe personal injury or death from possible flue gas leakage and carbon monoxide emissions.

Do not install exhaust fan in boiler room.

Older buildings with single-pane windows, minimal weather-stripping and no vapor barrier often provide enough natural infiltration and ventilation without dedicated openings.

New construction or remodeled buildings are most often built tighter. Windows and doors are weather-stripped, vapor barriers are used and openings in walls are caulked. As a result, such tight construction is unlikely to allow proper natural air infiltration and ventilation.

Follow state, provincial or local codes when sizing adequate combustion and ventilation air openings. In absence of codes, use the following guidelines when boiler is in a confined room (defined by NFPA 31 as less than 7200 cubic feet per 1 GPH input of all appliances in area. A room 8 ft. high x 33.5 ft. x

33.5 ft. is 7200 cu. ft.):

Provide two permanent openings — one within 12 inches of ceiling, one within 12 inches of floor. Minimum height or length dimension of each rectangular opening should be at least 3 inches.

When inside air is used — each opening must freely connect with areas having adequate infiltration from outside. Each opening should be at least 140 sq. in. per 1 GPH input (1 sq. in. per 1000 Btu input) of all fuel-burning appliances plus requirements for any equipment that can pull air from room (including clothes dryer and fireplace).

When outside air is used — connect each opening directly or by ducts to the outdoors or to crawl or attic space that freely connects with outdoors. Size per below:

•Through outside wall or vertical ducts — at least 35 sq. in. per 1 GPH input (1 sq. in. per 4000 Btu input) of all fuel-burning appliances plus requirements for equipment that can pull air from room (including clothes dryer and fireplace).

•Through horizontal ducts — at least 70 sq. in. per 1 GPH boiler input (1 sq. in. per 2000 Btu input) of all fuel-burning appliances plus requirements for any equipment that can pull air from room (including clothes dryer and fireplace).

•Where ducts are used, they should have same cross-sectional area as free area of openings to which they connect. Compensate for louver, grille or screen blockage when calculating free air openings. Refer to their manufacturer’s instructions for details. If unknown, use:

—Wood louvers, which provide 20-25% free air.

—Metal louvers or grilles, which provide 60-75% free air.

Lock louvers in open position or interlock with equipment to prove open before boiler operation.

Lay a foundation, if needed:

Boiler may be installed on non-carpeted combustible flooring.

For residential garage installation, install boiler so burner is at least 18 inches above floor to avoid contact with gasoline fumes.

A level concrete or masonry foundation is required when:

•Floor could possibly become flooded.

•Non-level conditions exist.

Solid concrete blocks can be used to create a pad.

BOILER FOUNDATION SIZE TABLE

 

 

 

MIN.

BOILER

LENGTH

WIDTH

HEIGHT

MODEL

INCHES

INCHES

INCHES

 

 

 

 

WGO-2

14

22

2

 

 

 

 

WGO-3

17

22

2

WGO-4

17

22

2

 

 

 

 

WGO-5

20

22

2

 

 

 

 

WGO-6

23

22

2

WGO-7

26

22

2

 

 

 

 

WGO-8

29

22

2

WGO-9

32

22

2

 

 

 

 

Go to page 6 to install boiler

Go to page 8 to install boiler

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Contents This Manual Includes Installation Start-Up Boiler Parts When Calling or Writing About the Boiler Symbol DefinitionsRead This Page First Hazard DefinitionsTable of Contents Installations must comply with Before Installing BoilerBefore selecting boiler location Provide clearances around boiler see FigureBoiler Foundation Size Table Provide air for combustion and ventilationLay a foundation, if needed Place boiler Install Packaged BoilerPerform hydrostatic pressure test Go to page 12 to connect breeching and ventingChange From Back Flue Outlet to Top Flue Outlet Optional Fiberglass wool and ceramic fiber materials Install Non-Packaged BoilerFlue Collector Hood Install jacket sizes 7 through 9 only Install Packaged and Non-Packaged BoilerInstall boiler controls Control Tapping TableInstall burner also refer to instructions packed with burner Minimum Chimney Size Table Connect BreechingGeneral chimney requirements Connect Breeching Connect Water Piping Install pipingGeneral piping information Diaphragm expansion tank FigureIsolation Zoning with circulators Piping Multiple ZonesPiping for systems requiring temperatures below 140F Use with refrigeration systems General wiring requirements Connect WiringThermostat wiring Burner wiringConnect Wiring Connect Wiring Oil piping connection at burner Connect Oil PipingGeneral oil piping requirements Fill the system Start-UpTips for water systems To place in operationCheck off steps as completed Check-Out ProcedureAppendix Burner adjustments for P and a boilersClose clearance installation Dimension a Description Parts ListParts Drawing Dimensions DimensionsIntermediate DIA WGO Gold OIL Water Boiler Ratings Ratings

550-141-826/1201 specifications

The Weil-McLain 550-141-826/1201 is a high-efficiency boiler designed for commercial applications, providing unmatched performance, reliability, and advanced technology features. This model is specifically engineered to cater to a range of heating needs, making it suitable for various settings, such as schools, hospitals, and large commercial spaces.

One of the key features of the Weil-McLain 550-141-826/1201 is its impressive thermal efficiency. With a high AFUE (Annual Fuel Utilization Efficiency) rating, this boiler maximizes energy usage, resulting in lower utility costs for end-users. The efficient performance not only translates to better energy savings but also contributes to a reduced carbon footprint, aligning with modern sustainability goals.

The powerful burner technology incorporated in the Weil-McLain 550-141-826/1201 ensures precise control over the combustion process. This results in consistent heating performance and minimizes emissions, meeting stringent environmental regulations. The unit utilizes advanced modulation technology, which allows the burner to adjust its output according to the demand, providing significant energy savings and enhanced comfort.

Another standout characteristic of this boiler is its robust construction. Built with high-quality materials, the Weil-McLain 550-141-826/1201 is designed to endure demanding conditions, ensuring longevity and reduced maintenance needs. The boiler features a durable heat exchanger, which optimizes thermal transfer efficiency while resisting corrosion and thermal stress.

The user-friendly controls and monitoring systems enhance the operational experience, allowing for easy adjustments and status checks. The integrated diagnostic capabilities provide valuable insights for troubleshooting, making maintenance straightforward and reducing downtime.

Furthermore, the versatility of the Weil-McLain 550-141-826/1201 allows for multiple installation configurations, accommodating different system requirements and space limitations. Its compact design makes it an ideal choice for facilities where space is a premium.

In summary, the Weil-McLain 550-141-826/1201 stands out in the commercial boiler market with its high efficiency, innovative burner technology, robust construction, user-friendly controls, and versatile installation options. This model exemplifies Weil-McLain's commitment to energy-efficient heating solutions, setting a benchmark for performance and reliability in the industry.
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