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

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

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Start-Up

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:

21

Burner Manual

 

 

Maintenance and Service Guide for GOLD Oil Water Boilers

 

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