Weil-McLain 550-141-829/1201 Install Packaged Boiler, Place boiler, Tankless heater, if used

Install Packaged Boiler

Place boiler:

1. Remove boiler from pallet.

Do not drop boiler or bump jacket on floor or pallet.

Damage to boiler can result.

Smaller sized boilers may be top heavy. Use caution when

handling to avoid minor personal injury or property damage.

2.Boiler is shipped for back flue outlet. To change to top flue outlet (see FIGURE 2):

a.Remove jacket cap on top of boiler.

b.Loosen two screws holding flue cap strap to collector hood. Remove strap and flue cap from opening. Re-tightenscrews.

c.Check rope placement inside flue cap.

(Read under step #5 below).

d.Loosen two screws on back flue outlet. Set flue cap on outlet. Install strap by engaging slots in screws. Tighten screws. Make sure cap is securely installed.

e.Snap jacket cap in back outlet opening.

Jacket cap must be in place on boiler to avoid requiring

an 18" minimum clearance from back of boiler to combustible material.

3.Check level. Shim legs, if needed.

4.Check for secure placement of insulation on target wall, chamber floor and burner door.

5.Visually check:

a.Flue collector hood seal.

b.Burner mounting door seal.

Obtain gas-tight seal to prevent possible flue gas

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

Tankless heater, if used:

1.Remove tankless heater knockout in left side of jacket panel and, for SGO-6 only, tankless heater control knockout.

2.Remove tankless heater cover plate and gasket.

3.Install new gasket and tankless heater over studs around opening. Secure with 3/8" nuts.

4.Install tankless heater operating control where shown on page 18. If not furnished, use operating control with maximum 10°F differential.

Perform hydrostatic pressure test:

1.Remove steam pressure gauge furnished with boiler. Install water pressure gauge for test only. Be sure gauge can handle test pressure.

2.Install air vent in tapping on top of boiler.

3.Remove pressure control and low water cutoff. Plug tappings.

4.Plug supply and return tappings.

5.Drain valve is already factory-installed.

6.Fill boiler. Vent all air. Pressure test boiler at 45-55 psig.

Do not leave boiler unattended. Cold water fill can expand and

damage cast iron, resulting in severe personal injury, death or substantial property damage.

7.Check for maintained gauge pressure for more than 10 minutes. Visually check for leaks if gauge pressure drops.

8.Drain boiler. Repair leaks if found.

Using petroleum-based compounds to repair leaks can

damage system components, resulting in property damage.

9.Retest boiler after repairing leaks.

10.Remove pressure gauge, air vent and plugs. Re-install steam pressure gauge, pressure control and low water cutoff furnished with boiler.

Go to page 12 to connect breeching and venting

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