17
Weil-McLain Ultra Oil NX
Burner Manual
Cover Installation
Install the four cover mounting thumb screws in the
cover mounting plate.
Install the cover over the mounting plate while
aligning the side slots with the installed cover
mounting screws.
1.
2.
The following guidelines are provided for routine
maintenance.
Replace the oil supply line
fi
lter. The line
fi
lter
cartridge must be replaced to avoid contamination of
the fuel pump and nozzle.
Inspect the oil supply system. All
fi
ttings should be
tight and leak-free. The supply lines should be free
of water, sludge and other restrictions.
Remove and clean the pump strainer if applicable.
Replace the used nozzle with a new nozzle
that conforms to the appliance manufacturer’s
speci
fi
cations.
Clean and inspect the electrodes for damage,
replacing any that are cracked or chipped.
Check electrode tip settings. Replace electrodes if
tips are rounded.
Inspect the igniter spring contacts.
Clean the cad cell lens surface, if necessary.
Make sure Low Firing Rate Baf
fl
e is in place if
required for the burner application. Omitting the
baf
fl
e can result in unacceptable burner combustion.
Inspect all gaskets. Replace any that are damaged
or would fail to seal adequately.
Clean the blower wheel, air inlet, air guide, retention
head, throttle cup and throttle ring of any lint or
foreign material.
Use a clean soft cloth with a degreaser to clean
any accumulated soot or oil stains from the
throttle cup sight windows.
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Check motor current. The amp draw should not
exceed the nameplate rating.
Check all wiring for secure connections or insulation
breaks.
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Trained Service Technician’s
Regular Maintenance
Figure 11. – Burner Cover
SK9804A
DO NOT TAMPER WITH THE UNIT OR CONTROLS
- CALL YOUR QUALIFIED SERVICE TECHNICIAN
OR SERVICEMAN.
To ensure continued reliable operation, a quali
fi
ed
service technician must service this burner annually.
More frequent service intervals may be required in
dusty or adverse environments.
Operation and adjustment of the burner requires
technical training and skillful use of combustion test
instruments and other test equipment.
y
y
y
y
Tampering with or making incorrect
adjustments could lead to equipment
malfunction and result in asphyxiation,
explosion or fi re.
Annual Professional
Service Required
Use a clean soft cloth and degreaser, on an annual
basis, to remove any build-up or dark stains from the
windows.
If damaged, replace the nozzle line assembly with
an assembly that has a windowed throttle cup.
y
y
If a window is punctured, signi
fi
cantly
scratched or removed from the throttle cup,
the burner performance could be impaired,
resulting in safety lockout, appliance soot-
up, equipment damage, hot gas puff-back
and asphyxiation hazard.
Do Not Puncture, Scratch,
or Remove Flame Sighting
Windows
Section: Trained Service Technician’s Regular Maintenance
Summary of Contents for UO-3 CV
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