20
GENERAL INSTRUCTIONS
Figure 18 - Gas Burner Flame
Figure 19 - Gas Burner Pilot
Figure 20 - Combustion Chamber
BURNERS
ORIFICES
GAS VALVE
•
Make visual inspection of main burner and pilot flames
at start of heating season and again in mid-season. Main
burner flame should have well defined inner blue mantel
with lighter blue outer mantel. Check burner throats and
burner orifices for lint or dust obstruction. Figure 17 and
18
.
•
Pilot flame should envelop ⅜ to ½ inch of tip of ignition/
sensing electrode. See
Figure 19
.
•
To adjust pilot flame, remove pilot adjustment cover
screw and turn 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. See Figure 16, Page 19.
• Check burners and pilot for signs of corrosion, rust or
scale buildup.
• Area around boiler must be kept clear and free of
combustible materials, gasoline and other flammable
vapors and liquids.
•
Free flow of combustion and ventilating air to boiler and
boiler room must not be restricted or blocked.
•
Inspect field sourced low water cutoffs annually, or
as recommended by low water cutoff manufacturer.
Flush float type low water cutoffs per manufacturer's
instructions.
•
Employ a qualified service agency to make annual
inspection of boiler and heating system. They are
experienced in making the inspections outlined above,
and, in event repairs or corrections are necessary,
trained technicians make the proper changes for safe
operation of the boiler.
P/N
240009041
, Rev. C [04/30/2017]