23
VI: SYSTEM START-UP (continued)
F.
START OIL BURNER.
1. Open vent fitting on fuel pump.
2. PRESS RED RESET BUTTON on primary control,
hold for one (1) second and release to reset primary
control.
3. TURN ‘ON’ BURNER service switch and
allow burner to run until oil flows from vent
fitting in a SOLID stream without air bubbles for
approximately 10 seconds.
NOTE:
For Primary Control "Pump Priming
Cycle" details, see Paragraph I, No. 2., Step a., Item
ii
.
4. Close vent fitting and burner flame should start
immediately after prepurge is completed. Prepurge
prevents burner flame until 15 seconds has elapsed
after initial power is applied to burner. During
prepurge the motor and igniter will operate but the
oil valve will remain closed. Refer to Oil Primary
Control Instructions for more details.
5. Adjust oil pressure.
a. When checking a fuel unit's operating pressure, a
reliable pressure gauge may be installed in either
the bleeder port or the nozzle port. For Beckett
burner refer to Figure 19.
b. Locate oil pressure adjusting screw and turn
screw to obtain proper pump pressure, refer to
Table 4.
c. To check the cut-off pressure, deadhead a reliable
pressure gauge onto the copper connector tube
attached to the nozzle port. Run the burner for
a short period of time. Shut the burner off. The
pressure should drop and hold.
d. Turn "OFF" the burner. Remove the pressure
gauge and install port/bleeder plug and/or
reconnect the nozzle port line and tighten. Start
the burner again.
G.
ADJUST OIL BURNER WHILE OPERATING.
(flame present)
1. ADJUST DRAFT REGULATOR for a draft
of zero to maximum of -.03" (water gauge) in the
breeching after chimney has reached operating
temperature and while burner is running. Burner
will operate with a positive draft over fire and zero
draft in the breeching. Adjust Draft Regulator such
that maximum draft of -.03" is reached in coldest
weather.
2. READJUST THE AIR DAMPER SETTING
(Air Band/Air Shutter/Air Gate) on burner for a
light orange colored flame while the draft over the
fire is -.02" water column (water gauge). Use a
smoke tester and adjust air for minimum smoke (not
to exceed #1) with a minimum of excess air. Make
final check using suitable instrumentation to obtain
a CO
2
of 11.5 to 12.5% with draft of -.02" water
column over the fire. These settings will assure a
safe and efficient operating condition. If the flame
appears stringy instead of a solid fire, try another
nozzle of the same type. Flame should be solid and
compact. After all adjustments are made recheck for
a draft of -.02" water column over the fire.
NOTE
: Paragraph G, Step 1
MUST BE
repeated
every time the Air Damper Setting is readjusted.
3. ONLY READJUST THE HEAD SETTING, if
necessary.
Beckett AFG Burners
a. Beckett MB(L1) Head burner has a fixed head
which is non-adjustable. Check "Z" Dimension
as outlined in Paragraph 2, Step 2c of this
section.
NOTE: Step outlined in Paragraph G, Steps 1 and
2 above
MUST BE
repeated every time the Head or
air Damper Setting is readjusted.
WARNING
DO NOT loosen or remove any oil line fittings
while burner is operating.
4. FLAME FAILURE
The V1 RO/FO boiler controls operate the burner
automatically. If for unknown reasons the burner
ceases to fire and the reset button on the primary
control has tripped, the burner has experienced
ignition failure. Refer to Oil Primary Control
features, Paragraph I, Step 2 of this section and
Section X, Troubleshooting, Paragraph B. If the
Figure 19: Adjusting Fuel Pump Pressure
