Maintenance - Power Flame C Series Installation & Operation Manual

C44
Rev.304
6. White Smoke Formation on Oil Firing
A. Oil/Air ratios incorrect due to excess air, or oil
flow is too low. Readjust for proper fuel input, CO
and smoke reading.
7. Gray or Black Smoke Formation on Oil Firing
A. Impingement on cold combustion chamber
surfaces due to undersized chamber, or
incorrect oil nozzle spray angle for application.
This could also result in carbon formation on
chamber surfaces. Refer to chamber sizing,
page 14, Figure 16 and page 14, Table 7 for
additional information. If chamber is the correct
size, change nozzle spray angle in order to
shorten or narrow the flame as required.
B. Defective or dirty oil nozzle. Replace or clean
nozzle.
C. Incorrect oil/air ratios. Readjust burner to correct
CO
D. Oil pressure too low resulting in poor atomization.
Readjust.
E. Impingement of raw oil spray on the blast tube
choke ring or oil nozzle air diffuser. Make certain
that the diffuser is seated firmly against the oil
nozzle adapter shoulder, except on C5-OB,
C5-GO-30B and larger burners or other special
applications indicated on burner data shipped with
the unit. See page 35 and 36, Figures 30, 31 and
32 for additional information. Position the oil gun
assembly fore or aft in the blast tube to assist in
elimination of oil spray on the blast tube choke ring.
8. Oil High Fire Input Rate Cannot Be Achieved
A. Oil nozzle size too small. Remove nozzle and
check markings. Replace with correct size nozzle.
8. 8. 8. 8. 8.

MAINTENANCE

General Information
Only qualified service technicians should make mechanical
or electrical adjustments to the burner and/or associated
control equipment.
Preventative maintenance can usually be performed by
building maintenance personnel.
Always follow the information provided in the Owner
Operating Instructions on page 51. These should be
conspicuously posted in the burner room at the time of the
initial burner installation and start up.
Always turn the power supply off to the burner and close
manual fuel valves as appropriate for routine maintenance.
Make sure that combustion and ventilation fresh air sources
to the burner room remain clean and open.
Periodically check all electrical connections and make
sure the flame safeguard control chassis is firmly connected
to its wiring base.
Refer to manufacturer's product bulletins supplied with
the burner for maintenance on the flame safeguard
control and other components.
and smoke levels.
2
B. Nozzle defective—replace. Nozzle mesh filter
dirty—clean or replace.
C. Oil supply pressure to nozzle too low. Readjust.
2
D. Oil pump defective. Replace.
E. On Low/High/Off and Low/High/Low systems -
N.C. oil solenoid valve in nozzle return line not
closing (or leaking). Check valve operation and
replace if necessary.
F. On two-step pump - N.O. pump mounted oil
solenoid valve defective (not closing). Replace
valve or pump.
G. Oil pump coupling loose (slipping) or defective.
Replace.
H. Linkage mechanically binding. Readjust.
I. On modulating burner, oil nozzle return line
metering valve set incorrectly. Readjust to attain
required nozzle bypass pressure.
J. Oil suction line too small or partially blocked.
Make vacuum test while at high fire. If the vacuum
is in excess of 10" HG, consult line sizing chart
on page 12. Make line size changes, if required.
K. Blocked or dirty suction line oil filter. Replace or
clean.
L. Manual valves in suction line not fully open.
Check and correct.
M. Suction line check valve or foot valve operating
incorrectly. Check and correct.
N. Vent system on oil tank blocked creating vacuum
on tank, with high vacuum and lowered oil flow
to burner. Check and correct.
Additional trouble shooting information can be found in
the Flame Safeguard Control bulletin supplied with the
burner.