Use and Care Manual

21
setpoint is adjustable between 140°F and 240°F.
High Limit Differential is factory programmed at
10°F. Additionally, the Warm Start Boiler Control
is factory programmed with a Low Limit setpoint
of 110°F. The Low Limit setpoint is adjustable
between 110°F and 220°F. These temperatures may
be varied to suit the installation requirements.
5. CHECKOUT
Put the system into operation and observe at least
one complete cycle to make sure that the controller
operates properly. See Troubleshooting Section to
use LED to assist in determining system operation.
E. ADJUST OIL BURNER BEFORE STARTING.
1. CHECK BURNER SETTINGS and readjust if
necessary, see Table 13 in Section X.
a. Inspect burner head setting on left side of burner
housing by insuring the blue line MD(V1) or the
line on the label MB(L1) are aligned, readjust if
necessary. Refer to Figure 16 and Table 13 in
Section X.
b. Check burner air band and air shutter settings.
Readjust if necessary, see Burner Specications
Table 13 in Section X.
c. OPEN ALL OIL LINE VALVES.
d. Attach a plastic hose to fuel pump vent tting
and provide a pan to catch the oil.
e. OPEN FLAME OBSERVATION PORT
COVER on burner swing door.
CAUTION
Air Band is set for maximum input and must be
readjusted prior to starting burner, if nozzle was
changed to a lower ring rate.
F. START OIL BURNER.
1. Open vent tting on fuel pump.
2. TURN ‘ON’ BURNER service switch and
allow burner to run until oil ows from vent
tting in a SOLID stream without air bubbles for
approximately 10 seconds.
3. Close vent tting and burner ame should start
immediately after prepurge is completed. Prepurge
prevents burner ame until 10 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.
4. 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 14.
b. Locate oil pressure adjusting screw and turn
screw to obtain proper pump pressure, refer to
Table 13 in Section X.
c. To check the cutoff 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. Remove the gauge and install bleeder port and/or
reconnect the nozzle port line.
G. ADJUST OIL BURNER WHILE OPERATING.
(ame present)
1. SET ROOM THERMOSTAT about 10°F below
room temperature.
2. PRESS RED RESET BUTTON on Oil Primary
Control and release.
3. READJUST THE HEAD SETTING only if
necessary.
a. RRO080 thru RRO111:
Beckett MB(L1) Head burners have a xed head
which are non-adjustable.
b. RRO151 thru RRO179:
Beckett MD(V1) (variable) Head burners have
the ability to control air by moving the head. It
might be necessary to move the head forward
or back one position at a time to optimize the
smoke and CO
2
readings. See Figure 16 and
Table 13 in Section X.
4. READJUST THE AIR DAMPER SETTING (air
Band/Air Shutter/Air Gate) on the burner for a
light orange colored ame while the draft over
the re is -0.02”. Use a smoke tester and adjust
air for minimum smoke (not to exceed #1) with a
minimum of excess air. Make nal check using
suitable instrumentation to obtain a CO
2
of 11.5
Figure 14: Adjusting Fuel Pump Pressure