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Dunkirk EXCELSIOR Series Installation, Operation & Maintenance Manual page 42

High efficiency oil fired hot water boiler
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16,9
Oil Burner
_ Beckett
AFG
Instructions
are for Beckett
AFG with Beckett
Genisys
primary
control.
For other
burners,
refer to
manufacturer's
manual.
Nozzle and air settings are given in Table 14 page
50.
For direct vent installation
guide,
see Direct Vent
Addendum.
].
Prepare
Oil Burner
Before
Starting,
(AFG)
A.
Check burner air band, air shutter and head setting
(if equipped),
readjust if necessary. See "17 - Oil
Burner,
Nozzle, & Air Settings"
on page 46.
B. Open all oil line valves.
C. Attach a plastic hose to fuel pump vent fitting and
provide a pan to catch the oil.
2.
Prime Pump and Start
Oil Burner
A.
Open bleed port fitting on fuel pump.
B.
Initiate a call for heat
I. After burner starts, press and hold reset button for
approximately
15 seconds until yellow light turns on.
Indicates button has been pressed long enough.
II. Release reset button. Yellow light turns off and burner
starts up again.
III. At burner startup, click reset button while igniter is
still on. This transitions
control to dedicated pump
priming mode, during which the motor, igniter and
valve are powered for four minutes. Yellow light will
be on.
C.
Bleed pump until all froth and bubbles are purged.
I. If desired, terminate
call for heat or hold reset button
for at least one second to exit pump priming mode
and return to standby mode.
II. At end of four minutes, yellow light will turn off and
control will automatically
return to standby mode.
III. If prime is not established
during four minute pump
priming mode, return to step 2.B.III.
to re-enter pump
priming mode. Repeat steps 2.C.I. to 2.C.II. until
pump is fully primed and oil is free of bubbles.
D. Terminate
call for heat and control will resume normal
operation.
Close bleed port fitting on fuel pump.
E. Adjust oil pressure.
I. When checking fuel unit's operating
pressure, reliable
pressure gauge may be installed in either bleeder port
or nozzle port.
II.
Initiate call for heat.
III. Locate oil pressure adjusting screw and turn screw
to obtain proper pump pressure, refer to "17 - Oil
Burner,
Nozzle, & Air Settings"
on page 46.
Fire, burn, asphyxiation
hazard. Do not loosen
or remove any oil line fittings while burner is in
operation.
Failure to follow these instructions could
result in death or serious injury.
Fire, burn, asphyxiation
hazard. Do not attempt
to start burner when oil has accumulated in
combustion chamber or unit is full of vapor, or
hot. Check operation of all boiler controls before
installation of boiler is completed. Failure to follow
these instructions could result in death or serious
injury.
3.
Preliminary
Oil Burner
Adjustments
A.
Adjust Draft Regulator for breech draft of -0.05
(preferred)
to 0 inches water column after chimney
has reached operating temperature
and while burner is
running.
B.
Use smoke tester and adjust air if necessary for
minimum smoke (not to exceed trace) with minimum
of excess air.
Check using suitable instrumentation
to
confirm CO2 of ll
to 13%.
If flame appears stringy
instead of solid fire, try another nozzle of same type.
Flame should be solid and compact.
C. Turn off burner and remove pressure gauge.
Install
gauge port/bleeder
plug and tighten.
Start burner
again.
4_
A.
B.
C.
D,
Final Burner
Adjustments:
Final burner
adjustments
must be made using combustion test
instruments.
Check draft breech to verify between 0.00" WC and
-0.05" WC, or otherwise adjust draft to -0.05" WC (or
less than zero.)
After operating
l0 minutes to warm up boiler, use
combustion test equipment to take smoke reading m
flue pipe between boiler and draft regulator.
Smoke
reading should be zero to trace (Shell Bacharach
Scale).
New boiler may require more than l0 minutes to burn
clean due to oil film on new heat exchanger. If smoke
reading is zero, gradually close burner's air adjustment
to obtain smoke reading showing trace smoke read-
ing. Once smoke reading is trace, measure CO2 and
as insurance margin increase air to sufficiently
reduce
CO2 by 1/2% to 1%.
If clean fire cannot be obtained, it is necessary to
verify burner head alignment.
If fire continues to be
smoky, replace nozzle.

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