Trained Service Technician's Regular Maintenance - Beckett NX Manual

Perform Regular Maintenance
Trained Service Technician's Regular
Maintenance
WARNING
Annual Professional Ser-
!
vice Required
Tampering with or making incorrect
adjustments could lead to equip-
ment malfunction and result in
asphyxiation, explosion or fi re.
• DO NOT TAMPER WITH THE UNIT OR CON-
TROLS - 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.
The following guidelines are provided for routine
maintenance.
Replace the oil supply line filter. The line filter
cartridge must be replaced to avoid contamina-
tion of the fuel pump and nozzle.
Inspect the oil supply system. All fittings 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 appli-
cable.
Replace the used nozzle with a new nozzle that
conforms to the appliance manufacturer's speci-
fications.
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 Baffle is in place if
required for the burner application. Omitting the
baffle can result in unacceptable burner combus-
tion.
Page 18
Inspect all gaskets. Replace any that are dam-
aged or would fail to seal adequately.
Clean the blower wheel, air inlet, air guide, re-
tention 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.
Do Not Puncture, Scratch,
WARNING
!
or Remove Flame Sight-
ing Windows
If a window is punctured, signifi -
cantly scratched or removed from
the throttle cup, the burner perfor-
mance could be impaired, resulting in safety
lockout, appliance soot-up, equipment damage,
hot gas puff-back and asphyxiation hazard.
• Use a clean soft cloth and degreaser, on an an-
nual 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.
Check motor current. The amp draw should not
exceed the nameplate rating.
Check all wiring for secure connections or insula-
tion breaks.
Check the pump pressure and cutoff function.
Check primary control safety lockout timing.
Check ignition system for proper operation.
Inspect and clear the vent system and chimney
of any soot accumulation or other restriction.
Clean the appliance thoroughly according to the
manufacturer's recommendations.
Check the burner performance. Refer to the sec-
tion "Set combustion with test instruments".
It is good practice to keep a record of the service
performed and the combustion test results.
RWB 6104 BNX