Burnham 8H manual IX. Service, Clean Boiler Flueways. See Figure

Models: 8H

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IX. Service

WARNING

Service on this boiler should be undertaken only by trained and skilled personnel from a qualified service agency. Inspections should be performed at intervals specified in this manual. Maintain manual in a legible condition.

Keep boiler area clear and free of combustible materials, gasoline and other flammable vapors and liquids.

Do not place any obstructions in boiler room that will hinder flow of combustion and ventilation air.

The service instructions contained in this manual are in addition to the instructions provided by the manufacturer of the boiler components. Follow component manufacturer’s instructions. Component manufacturer’s instructions were provided with the boiler. Contact component manufacturer for replace- ment if instructions are missing. Do not install, start up, operate, maintain or service this boiler without reading and understanding all of the component instructions. Do not allow the boiler to operate with altered, disconnected or jumpered components. Only use replacement components identical to those originally supplied by Burnham Commercial.

A.General. Inspection and service must be conducted annually. Turn off electrical power and gas supply while conducting service or maintenance. Follow instructions TO TURN OFF GAS TO APPLIANCE. See Lighting/ Operating Instructions on inside of Front Removable Door.

WARNING

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

B.Maintenance of Low Water Cut-off (if used). Follow instructions provided with low water cut-off.

C.Vent System. Check for:

1.obstructions

2.accumulations of soot

3.deterioration of vent pipe or vent accessories due to condensation or other reasons

4.proper support—no sags, particularly in horizontal runs

5.tightness of joints. Remove all accumulations of soot with wire brush and vacuum

Remove all obstructions. Replace all deteriorated parts and support properly. Seal all joints.

D.Remove Main Burners for cleaning, changing orifice plugs, or repairs.

1.Shut down gas boiler in accordance with Lighting/ Operating Instructions on inside of Front Removable Door. Close Manual Shut-off Valve.

2.Remove Front Removable Door. Raise Lower Front Tie Bar.

3.Disconnect ignition system.

4.Remove burner access panel(s).

5.Mark location of Main Burner with Pilot Bracket on manifold.

6.Remove hitch pin clips from Main Burner Orifices.

7.Hold Main Burner on throat. Lift slightly to raise rear of burner. Push to rear of boiler until burner clears Main Burner Orifice. Lift burners out.

8.Check burners to be sure they do not contain foreign matter or restrictions. Clean burners with a soft bristle brush, blow any dirt out with compressed air or use a vacuum cleaner. See Figure 53.

E.Clean Boiler Flueways. See Figure 53.

1.Shut down gas boiler in accordance with Lighting/ Operating Instructions on inside of Front Removable Door. Close Manual Shut-off Valve.

2.Disconnect vent system. Remove Draft Hood.

3.Remove Jacket Top Panel.

4.Remove Canopy from top of boiler.

5.Lift Flue Baffles out of flueways. Remove any accumulated scale or soot.

6.Thoroughly clean flueways with flue brush, removing all scale and soot. See Figure 53.

7.Clean boiler heating surface accessible from combustion chamber with straight handle wire brush.

8.Reinsert Blue Baffles into flueways. See Figure 53 for correct baffle orientation. Tabs at top of each baffle should rest o top of Flue Pins.

9.Install Canopy. See Section II: Boiler Assembly, Paragraph G.

10.Install Jacket Top Panel, Draft Hood, Vent Damper (if used) and Vent System.

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Burnham 8H manual IX. Service, Clean Boiler Flueways. See Figure