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61
IX. Service
WARNING
Service on this boiler should be undertaken only by trained and skilled personnel from a qualied service
agency. Inspections should be performed at intervals specied in this manual. Maintain manual in a
legible condition.
Keep boiler area clear and free of combustible materials, gasoline and other ammable vapors and
liquids.
Do not place any obstructions in boiler room that will hinder ow 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 orice
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 Orices.
7. Hold Main Burner on throat. Lift slightly to raise
rear of burner. Push to rear of boiler until burner
clears Main Burner Orice. 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 Bafes out of ueways. Remove any
accumulated scale or soot.
6. Thoroughly clean ueways with ue 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 Bafes into ueways. See Figure 53
for correct bafe orientation. Tabs at top of each
bafe 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.