FULTON VSRT Series Installation, Operation And Maintenance Manual page 99

SECTION 4
VSRT-IOM-2022-0728
Problem Cause
Damaged Refractory
Not Enough Air/Build-Up on
Fan Wheel (Rich; Burner Hums)
Fuel Valve Adjusted Too High
(Rich; Burner Hums)
Fan Speed Too High (Lean;
Poor Combustion
Unstable Flame)
Gas Valve Adjusted Too Low
(Lean; Unstable Flame)
Draft
Dirty Flue
Negative Room Pressure
Damaged Refractory
Ignition Electrodes
Burner back fires
UV Scanner
Draft
Negative Room Pressure
Questions? Please Contact Your Local Manufacturer's Representative
MAINTENANCE & TROUBLESHOOTING
Remedy
Check refractories to see if they are plugged with soot or
broken in pieces. Clean or replace as necessary.
Check CO2/O2 levels. If rich, disassemble filter housing and gas
train. Look inside inlet to the fan. If there is build-up on the fan
blades, clean fan. Recheck the CO2/O2 and adjust gas valve as
necessary for all combustion points.
Check CO2/O2 levels. Check gas pressure at outlet of valve. If
the pressure is too high, make an adjustment at the valve. Be
sure to check all combustion points.
Check fan discharge pressure. If too high, adjust fan speed.
Check CO2/O2 levels and adjust gas valve as necessary. Be sure
to check all combustion points.
Check CO2 and O2 levels. Check pressure at outlet of the valve.
If too negative, adjust gas valve as necessary.
Check draft with a gauge. Draft should be within the range
of -0.25" w.c. to + 1.50" w.c. May need to install a barometric
damper.
Check flue for carbon buildup or blockage. Clean flue passages
with brush.
Make sure no exhaust fans are running in the boiler room.
Check refractories to see if they are plugged with soot or
broken in pieces. Clean or replace as necessary.
Check electrodes for carbon buildup and clean if necessary.
Check for proper adjustment. Readjust if necessary. Check for
cracks in porcelain; if found replace.
Check for debris on flame scanner and clean as needed. Check
for proper location of detector.
Check draft with a gauge. Draft should be within the range
of -0.25" w.c. to + 1.50" w.c. May need to install a barometric
damper.
Make sure no exhaust fans are running in the boiler room.
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