2
6
5.6.5 Low Oil Flame Is Established and Proven, but Flame Out Occurs in Transition from Low Fire to High Fire.
1)
Defective or incorrect size oil nozzle. Replace.
2)
High fire oil pressure too low. Readjust.
3)
Air dampers set too far open at low fire, which causes flame to blow out in starting to high fire.
Readjust dampers.
4)
Oil pump coupling loose or defective. Tighten or replace.
5)
Defective oil pump. Replace.
6)
Linkage mechanically binding. Readjust.
7)
Fuel/air ratios set incorrectly, causing flame to blow out when going to high fire. Readjust linkage.
8)
Atomizing air pressure set incorrectly.
5.6.6 White Smoke Formation on Oil Firing
1)
Oil/air ratios incorrect due to excess air, or oil flow is too low. Readjust for proper fuel input, O
2
and smoke reading.
5.6.7 Gray or Black Smoke Formation on Oil Firing
1)
Impingement on cold combustion chamber surfaces due to under sized chamber, or incorrect oil
nozzle spray angle for application. This could also result in carbon formation on chamber
surfaces. Contact factory for proper chamber sizing. If chamber is the correct size, change
nozzle spray angle in order to shorten or narrow the flame as required.
2)
Defective or dirty oil nozzle. Replace or clean nozzle.
3)
Incorrect oil/air ratios. Readjust burner to correct O
2
and smoke levels.
4)
Atomizing air pressure too low resulting in poor atomization. Readjust.
5.6.8 Oil High Fire Input Rate Cannot Be Achieved.
1)
Oil nozzle size too small. Remove nozzle and check markings. Replace with correct size nozzle.
2)
Nozzle defective. Clean or replace.
3)
Oil supply pressure to nozzle too low. Readjust.
4)
Oil pump defective. Replace.
5)
Atomizing air pressure too high. Readjust.
6)
Oil pump coupling loose (slipping) or defective. Replace.
7)
Linkage mechanically binding. Readjust.
8)
Metering valve set incorrectly. Readjust.
9)
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 on Figure 3. Make line size changes, if required.
10)
Blocked or dirty suction line oil filter. Replace or clean.
11)
Manual valves in suction line not fully open. Check and correct.
12)
Suction line check valve or foot valve operating incorrectly. Check and correct.
13)
Vent system on oil tank blocked creating vacuum on tank, with high vacuum and lowered oil flow
to burner. Check and correct.
5.6.9 Additional trouble shooting information can be found in the Flame Safeguard Control Bulletin supplied
with the burner.
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