Boiler Manual
Part Number 550-110-593/1099 49
1. Review the User’s Information Manual with the
owner.
2. Emphasize the need to perform the maintenance
schedule specified in the User’s Information
Manual (and in this manual as well).
3. Remind the owner of the need to call in a licensed
❏ Review with owner . . . . . . . .
❏ Cleaning boiler heating surfaces
1. Shut down boiler:
• Follow “To Turn Off Gas to Appliance”
instructions on boiler and Lighting or
Operating instructions.
• Do not drain boiler unless it will be exposed to
freezing temperatures. If using antifreeze in
system, do not drain.
2. Follow shutdown procedure.
3. Remove venting system connection to boiler.
4. Remove top jacket panel. Turn back insulation.
5. Remove flue collector. Clean sealant from assembly
and sections.
6. Remove radiation plates hanging between sections.
7. Remove burners from base. Brush and vacuum
burners to remove all dust and lint. Verify that all
burner ports are free of debris.
8. Place newspapers in base of boiler to collect soot.
9. Clean between sections with wire flue brush.
10. Remove newspaper and soot. Vacuum or brush base

Before troubleshooting:

1. Have the following items:
a. Voltmeter that can check 120 VAC and 24
VAC.
b. Microammeter with a minimum scale range
of 0-25.
c. Continuity checker.
d. U-tube manometer.
2. Check for 120 VAC (minimum 102 VAC to
maximum 132 VAC) to boiler.
3. Make sure thermostat is calling for heat and contacts
(including appropriate zone controls) are closed.
Check for 24 VAC between thermostat wire nuts and
ground.
See pages 50 through 59 for additional troubleshooting
information.
contractor should the boiler or system exhibit any
unusual behavior.
4. Remind the owner to follow the proper shutdown
procedure and to schedule an annual start-up at the
beginning of the next heating season.
and surrounding area.
11. Reinstall radiation plates.
12. Replace collector box/transition assembly. Seal with
sealant. Obtain gas-tight seal to prevent flue gas
spillage and carbon monoxide emissions, resulting
in severe personal injury or death.
13. Replace insulation and jacket top panel.
14. Start up boiler following section 6, pages 28-32 of
this manual and the boiler Lighting or Operating
instructions. Excessive sooting indicates improper
gas combustion. If found, check for proper
combustion and make any necessary adjustments.
Troubleshooting — procedure11a
Burner access panel must be in position during boiler
operation to prevent momentary flame rollout on
ignition of main flame. Severe personal injury or
substantial property damage will result.
Never jumper (bypass) rollout thermal fuse element or
any other device except for momentary testing as
outlined in Troubleshooting Charts. Severe personal
injury, death or substantial property damage can result.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation.
The boiler contains ceramic fiber
and fiberglass materials. Use care
when handling these materials per
instructions on page 68 of this
manual. Failure to comply could
result in severe personal injury.