21
Draft
Take a draft reading. Draft should
be according to installer/
serviceman labels for Series I & II
boiler located at the end of this
manual, in the stack.
Draft
Inspect draft regulator for correct
Regulator
location on flue system.
Combustion
Inspect installation for
Air
combustion air provisions.
See Table 1.
Open air band wide and take
CO2 reading.
Oil Supply
Bleed pump; inspect for air leaks
or water contamination.
Pump
Install pressure gauge in gauge
Pressure
port of fuel pump. Pressure
should be according to installer/
serviceman labels for Series I & II
boiler located at the end of this
manual.
Nozzle
Check for faulty nozzle.
Heat
Inspect heat exchanger.
Exchanger
Restrictions
Down drafts.
Insufficient draft.
Excessive draft.
Improper installation.
Improper installation.
Improper adjustment.
Air leak in fuel system.
Compression fittings.
Water in oil tank.
Pump discharge pressure
incorrectly set.
Coupling worn or broken.
Pump worn - low pressure
motor overloads.
Plugged orifice or distributor.
Plugged nozzle strainer.
Poor spray pattern.
Plugged heat exchanger.
Install vent cap.
Increase draft setting.
Reduce draft settings, install
second draft regulator if
necessary.
Move draft regulator to
correct location.
Provide sufficient sources of air
for combustion.
Adjust CO2 level - start with air
band wide open. Use instrument.
Repair leak - use only flare
joints.
Strip tank of water exceed 2"
in depth.
Set pressure according to
installer/serviceman labels for
Series I & II boiler located at the
end of this manual.
Replace coupling.
Replace pump.
Replace nozzle with nozzle
specified on burner housing.
Clean out heat exchanger.
SOURCE
PROCEDURE
CAUSES
REMEDY
TROUBLE: BURNER FIRES, BUT PULSATES
When checking burner adjustments always use instruments.
