6
GENERAL INSTRUCTIONS
The boiler flue gas passageways may be inspected by
a light and mirror. Remove the burner door. Place a
trouble lamp in the flue collector through the draft relief
opening. With the mirror positioned above the burners,
the flue gas passageways can be checked for soot or
scale. See Figure 4.
In the event the flow of combustion products through
theboilerventingsystembecomesblocked,theblocked
vent safety switch will shut the main burner gas off. If
this condition occurs, do not attempt to place the
boiler in operation. Contact a qualified service
agency.
If the boiler flue-ways become blocked, a flame rollout
safety switch will shut the main burner gas off. If this
condition occurs, do not attempt to place the boiler
in operation. Contact a qualified service agency.
To Clean The Flue Gas Passageways
Remove the burners from the combustion chamber by
1.
raising the burners up from the manifold orifices and
pulling toward the front of the boiler. See Figure 5.
Disconnect the vent pipe from the draft hood.
2.
Remove the top jacket panel.
3.
Remove the combination flue collector and draft hood
4.
from the boiler castings by loosening the nuts on the
hold down bolts located on each side of the collector.
Place a sheet of heavy paper or similar material over
5.
the bottom of the base and brush down the flue
passageways. The soot and scale will collect on the
paper and is easily removed with the paper.
With the paper still in place in the base, clean the top
of the boiler castings of the boiler putty or silicone
used to seal between the castings and flue collector.
Make certain that chips are not lodged in the flue
passageways.
Whenthecleaningprocessiscomplete,restoretheboiler
components to their original position. Use boiler putty
or IS-808 GE silicone (available from the distributor) to
seal around the flue collector and boiler castings.
A visual check of the main burner and pilot flames
should be made at the start of the heating season and
againmid-season.Themain burnerflameshouldhavea
well defined inner blue mantel with a lighter blue outer
mantel. Check the burner throats and burner orifices
for lint or dust obstruction. See Figure 6.
The pilot flame should envelop 3/8 to 1/2 inch of the
tip of the pilot thermocouple, ignition/sensing electrode
or mercury sensor. See Figure 7
To adjust the pilot flame, remove the pilot adjustment
cover screw and turn the inner adjustment screw
counterclockwise to increase or clockwise
to decrease pilot flame. Be sure to replace cover screw
after adjustment to prevent possible gas leakage.
Theburnersandpilotshouldbecheckedforsignsofcorro-
sion, rust or scale build-up. The area around the boiler
must be kept clear and free of combustible materials,
gasoline and other flammable vapors and liquids.
The free flow of combustion and ventilating air to
the boiler and boiler room must not be restricted or
blocked.
It is suggested that a qualified service agency be
employed to make an annual inspection of the boiler
andheatingsystem.Theyareexperiencedinmakingthe
inspections outlined above and, in the event repairs or
correctionsarenecessary,canmaketheproperchanges
for safe operation of the boiler.
