TO TURN OFF APPLIANCE

1.Set the thermostat to lowest setting.

2.Turn off all electric power to the appliance if service is to be performed.

3.Turn gas control knob counterclockwise to "OFF". Do not force.

SECTION 4: MAINTENANCE

This boiler has been designed to provide years of trouble free performance in normal installations. Examination by the homeowner at the beginning of each heating season, and in mid-heating season, should assure continued good performance. In addition, the boiler should be examined by a qualified service professional at least once every year.

DANGER:To avoid fire and explosion hazards: Do not store anything against the boiler or allow dirt or debris to accumulate in the area immediately surrounding the boiler. Keep boiler area clear and free from combustible materials, gasoline and other flammable vapors and liquids. Lint, paper or rags must not be allowed to accumulate near the burners. Do not place clothing on boiler to dry.

NOTE: Do not draw water from heating system for cleaning. Minerals in the water can build up on the heat transfer surfaces and cause overheating and subsequent failure of the cast iron sections.

NOTE: Do not obstruct the flow of combustion and ventilation air.

NOTE: If boiler is equipped with a low water cutoff, follow manufacturer's maintenance instructions.

BEFORE EACH HEATING SEASON

1.Remove and inspect draft hood and vent piping (connecting draft hood to chimney or vent) for obstructions, soot accumulation, rust or corrosion. Clean and replace as necessary. Check tightness of joints; seal all joints where necessary.

2.Check boiler flue passageways in the boiler sections for any blockage or soot accumulation. Remove draft hood, jacket top and flue collector. Using a flashlight, examine all flue passageways.

a.If passageways are free of soot and obstructions, replace flue collector and seal with furnace cement.

b.If passageways need cleaning, remove burners as described in paragraph 3 below. Insert long-handle bristle flue brush down between section tubes and upward through sections from combustion chamber in both diagonal directions to remove carbon from finned surfaces. Vacuum debris. Replace flue collector and seal with furnace cement.

c.Reinstall jacket top panel and draft hood.

3.Check and clean burner assembly. Remove burner access panel. Lift burners up and to rear until burners are disengaged from orifices. Brush top of burners with soft bristle brush and blow out with air or vacuum.

4. Check gas manifold for proper position and reassemble burners to the manifold. Line up holes in burners with the orifices, and slide assembly back into position. BE SURE TO REINSTALL BURNERS WITH BURNER PORTS ON THE TOP SURFACE (UPRIGHT).

5.When a low water cut-off has been utilized, follow the manufacturer’s maintenance instructions. As a minimum, test the operation of electronic controls at least once a year. Remove, clean and inspect the probe. If the LWCO fails to operate properly it must be replaced. Float type controls should be flushed once a month during the heating season.

6.Follow "System Start-Up & Adjustments" procedures in Section 3 of this manual.

Steam Boiler Cleaning Instructions

The following procedures must be followed on initial start-up and if the presence of sediment, sludge or impurities hamper proper boiler operations.

1.With gate valves closed on supply and return lines, start burner and allow boiler to become pressurized so that the pressuretrol may be adjusted and set for limit cut-off desired (normally about 3 psi). Turn off burner and allow pressure to drop to 0 psi., then proceed with the following cleaning procedure.

2.Remove the pressure relief valve.

3.Add caustic soda (lewis lye) through this opening at the rate of one pound per thousand square feet of radiation capacity. Scout, Squirk or similar steam boiler cleaners may be used instead of lye. Trisodium phosphate (1/4#) is also an excellent cleaner.

4.Provide pipe connection (full size) from pressure relief valve opening to a convenient drain to serve as a vent.

5.Fill the boiler with a manual fill valve until water starts to trickle from this pipe.

6.Fireboiler at sufficient rate to generate and maintain steam. Entrained water and impurities will then discharge (with steam) from open vent. Add water as necessary so that the low water cutoff does not shut off burner.

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