Weil-McLain SGO-W SERIES 3 OIL-FIRED NATURAL DRAFT WATER BOILER manual Start-Up, Fill the system

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Start-Up

Follow information below to prevent severe personal injury, death or

substantial property damage:

•Do not use gasoline 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, when unit is full of vapor or when combustion chamber is very hot.

•Do not start burner unless collector hood, flue cap, jacket cap, breeching and burner mounting door are secured in place.

•Never burn garbage or paper in the boiler.

•Never leave combustible material around it.

Fill the system:

1.Close manual and automatic air vents and boiler drain cock.

2.Fill to correct system pressure. Correct pressure will vary with each installation. Normal cold water fill pressure for residential systems is 12 psig. Boiler water pH 7.0 to 8.5 is recommended.

Failure to maintain recommended pH level can

cause section failure and leaks.

3.Open automatic air vent one turn.

4.Open other vents.

a.Starting on the lowest floor, open air vents one at a time until water squirts out. Close vent.

b.Repeat with remaining vents.

5.Refill to correct pressure.

Tips for water 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 recommended pH and 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.

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

•When using antifreeze:

Do not use automotive, ethylene glycol, undiluted or petroleum-

based antifreeze. Severe personal injury, death or substantial property damage can result.

—Use antifreeze especially made for hydronic systems. Inhibited propylene glycol is recommended.

—50% solution provides protection to about -30°F. Do not exceed 50% mixture.

—Local codes may require back-flow preventer or actual disconnect from city water supply.

—Determine quantity according to system water content. Boiler water content is listed on back cover of manual. Percent of solution will affect sizing of heat distribution units, circulator and expansion tank.

—Follow antifreeze manufacturer’s instructions.

To place in operation:

1.Verify boiler is filled with water.

2.Open burner mounting door and verify rear target wall, floor and burner door insulations are in proper position.

3.Verify burner mounting door is closed tightly and burner wiring harness is connected to junction box.

4.Factory burner adjustment and settings may not be suitable for specific job conditions. For “A” boilers, see Appendix, page 23.

Make final burner adjustments using combustion test equipment

to assure proper operation. Do not fire boiler without water. Sections will overheat, damaging boiler and resulting in substantial property damage.

5.Vent air from system. Repeat steps 4 and 5 under “Fill the system.” Air in system can interfere with water circulation and cause improper heat distribution.

6.Check boiler and system piping for leaks. See “Tips for water systems.”

7.Inspect breeching and venting for proper operation.

For additional information, refer to instructions packed with boiler or burner:

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Burner Manual

 

 

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Maintenance and Service Guide for GOLD Oil Water Boilers

 

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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 FigureProvide air for combustion and ventilation Do not install exhaust fan in boiler roomLay a foundation, if needed Boiler Foundation Size TableInstall Non-Packaged Boiler Fiberglass wool and ceramic fiber materialsPlace boiler Perform hydrostatic pressure test Tankless heater, if usedInstall jacket sizes 7 through 9 only Install boiler controlsControl Tapping Table Install burner also refer to instructions packed with burner Connect Breeching General chimney requirementsMinimum Chimney Size Table Connect Breeching Connect Water Piping Install pipingGeneral piping information Diaphragm expansion tank FigureExpansion Tank Piping Multiple Zones Zoning with circulatorsZoning with zone valves Connect Water Piping Connect Tankless Heater Piping Use with refrigeration systemsHot Water Can Scald Tankless Heater Ratings Table To pipe tankless heaterGeneral wiring requirements Connect WiringThermostat wiring Burner wiringConnect Wiring Connect Oil Piping General oil piping requirementsOil piping connection at burner Fill the system Start-UpTips for water systems To place in operationCheck off steps as completed Check-Out ProcedureAppendix Burner adjustments for a boilersDescription Parts ListParts Drawing Dimensions DimensionsIntermediate SGO-W Gold OIL Water Boiler Ratings 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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