Weil-McLain 550-141-827/1201 manual Connect Breeching, General chimney requirements

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Connect Breeching

General chimney requirements:

•Designed for natural draft firing. Connect boiler to vertical chimney.

Insufficient draft can cause flue gas leakage and carbon

monoxide emissions, which will lead to severe personal injury or death.

•Use vent material approved by local codes for oil-fired burners. In their absence, refer to:

—NFPA 31, Installation of Oil-Burning Equipment.

—NFPA 211, Standard for Chimneys, Fireplaces, Vents and Solid Fuel Burning Appliances.

—In Canada, refer to CSA B139, Installation Code for Oil-Burning Equipment.

•NFPA 211 requires chimney to be lined before connected to boiler.

Inspect existing chimney before installing new boiler. Failure to

do any of the following will result in severe personal injury or death:

—Clean chimney, including removal of blockage.

—Repair or replace damaged pipe or liner.

—Repair mortar and joints.

To prevent downdrafts, extend chimney at least 3 feet above highest point where it passes through roof and 2 feet higher than any portion of building within 10 feet. Increase chimney cross-sectional area and height at least 4% per 1,000 feet above sea level.

•Minimum clearances from vent pipe to combustible material:

6 inches — Type “L” doublewall vent

18 inches — Singlewall vent

•Minimum chimney sizes should be used.

Oversized chimneys, outside masonry chimneys and/or derated

inputs can result in condensation in chimney.

Connect breeching:

Long horizontal breechings, excessive number of tees and

elbows or other obstructions restricting combustion gas flow can result in possibility of

MINIMUM CHIMNEY SIZE TABLE

 

***

MINIMUM

 

BOILER

MINIMUM

I=B=R

MINIMUM

MODEL

BREECHING

CHIMNEY SIZE

CHIMNEY

NUMBER

DIAMETER

RECT.

ROUND

HEIGHT

 

 

 

 

 

SGO-3W

5"

8" x 8"

6"

15'

SGO-4W

6"

*

 

 

 

 

 

 

 

SGO-5W

6"

8" x 8"

 

 

 

 

 

 

SGO-6W

 

7"

15'

7"

*

 

 

 

SGO-7W

 

 

 

 

 

 

 

 

 

 

 

 

SGO-8W

7"

8" x 12"

7"

20'

 

 

SGO-9W

 

**

 

 

 

 

 

 

 

*6¾" x 6¾" inside liner

**6½" x 10½" inside liner

***Flue collar on boiler is 7" diameter

condensation, flue gas leakage and carbon monoxide emissions, which can lead to severe personal injury or death.

1.Install 2 flue pipe brackets.

2.Connect full-sized breeching when possible. See Minimum Chimney Size Table.

—Back outlet — see FIGURE 5.

—Top outlet — see FIGURE 6.

3.Connection must be made above bottom of chimney to avoid blockage. Breeching must not enter chimney far enough to cause obstruction. Use thimble or slip joint where breeching enters chimney to allow removal for cleaning.

4.When burner and boiler are properly installed, draft overfire will be approximately -0.01"

to -0.02" W.C. Install barometric control in breeching, per control manufacturer’s instructions, when excess draft needs to be relieved or to comply with applicable codes and regulations. Use draft gauge to adjust proper opening.

5.An induced draft fan for the chimney may be necessary if:

—Excessive resistance to flow of combustion gases can be expected.

—Cross-sectional area of chimney is smaller than minimum recommended.

—Chimney height is less than recommended. Seal all vent joints. Interlock burner with

fan operation.

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Contents This Manual Includes Installation Start-Up Boiler Parts Read This Page First Symbol DefinitionsWhen Calling or Writing About the Boiler Hazard DefinitionsTable of Contents Before selecting boiler location Before Installing BoilerInstallations must comply with Provide clearances around boiler see FigureLay a foundation, if needed Do not install exhaust fan in boiler roomProvide air for combustion and ventilation Boiler Foundation Size TableFiberglass wool and ceramic fiber materials Install Non-Packaged BoilerPlace boiler Tankless heater, if used Perform hydrostatic pressure testInstall boiler controls Install jacket sizes 7 through 9 onlyControl Tapping Table Install burner also refer to instructions packed with burner General chimney requirements Connect BreechingMinimum Chimney Size Table Connect Breeching General piping information Install pipingConnect Water Piping Diaphragm expansion tank FigureExpansion Tank Zoning with circulators Piping Multiple ZonesZoning with zone valves Connect Water Piping Use with refrigeration systems Connect Tankless Heater PipingHot Water Can Scald To pipe tankless heater Tankless Heater Ratings TableThermostat wiring Connect WiringGeneral wiring requirements Burner wiringConnect Wiring General oil piping requirements Connect Oil PipingOil piping connection at burner Tips for water systems Start-UpFill the system To place in operationCheck-Out Procedure Check off steps as completedBurner adjustments for a boilers AppendixParts List DescriptionParts Drawing Dimensions DimensionsIntermediate Ratings SGO-W Gold OIL Water Boiler Ratings

SGO-W SERIES 3 OIL-FIRED NATURAL DRAFT WATER BOILER, 550-141-827/1201 specifications

The Weil-McLain SGO-W Series 3 Oil-Fired Natural Draft Water Boiler is a robust and efficient solution designed for residential heating needs. This boiler stands out for its exceptional construction and advanced engineering, ensuring reliability and longevity for homeowners.

One of the core features of the SGO-W Series 3 is its cast iron heat exchanger, which provides excellent thermal efficiency. The boiler is designed to retain heat for extended periods, allowing for reduced energy consumption and lower heating bills. The heavy-duty cast iron sections are built to withstand high pressures and temperatures, ensuring durability in various conditions.

The SGO-W Series 3 is equipped with a natural draft design, allowing it to utilize the natural upwards movement of flue gases. This design eliminates the need for complicated power venting systems, making installation simpler and more cost-effective. It also enhances the boiler's efficiency by promoting better combustion processes in the burner.

Another significant characteristic is its versatile fuel options. The SGO-W Series 3 accommodates No. 2 fuel oil, making it a viable option for users who prefer or require oil heating. This versatility is crucial for homeowners in areas where natural gas is not available or preferred.

The boiler operates at a high efficiency rate, contributing to lower emissions and compliance with environmental standards. Its energy-efficient design not only benefits the environment but also allows for significant savings over time. The unit is also equipped with a reliable and easily adjustable fuel burner, providing flexibility in managing heating output to suit various residential heating demands.

For safety and convenience, the Weil-McLain SGO-W Series 3 features an electronic ignition system that ensures reliable starting and operation, even in adverse weather conditions. Additionally, the boiler is designed for easy serviceability, with accessible components allowing for quick maintenance and repairs, ensuring that homeowners can rely on continual performance and minimal downtime.

In summary, the Weil-McLain SGO-W Series 3 Oil-Fired Natural Draft Water Boiler is a powerful and efficient heating solution, combining advanced technologies with robust construction. Its cast iron heat exchanger, natural draft design, fuel flexibility, high efficiency, and convenient features make it an excellent choice for residential heating applications, supporting homeowners' comfort and reducing energy costs.
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