Install Instructions

32
V: SYSTEM START-UP (continued)
Figure 25: Adjusting Fuel Pump Pressure
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. Beckett Burners - READJUST THE HEAD
SETTING only if necessary.
a. CL3-091 thru CL4-126:
Beckett MB(L1) Head burners have a xed head
which are non-adjustable.
b. CL4-175 thru CL5-280:
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 26 and
Table 14A at the rear of this manual.
4. Riello Burners - READJUST THE TURBULATOR
SETTING only if necessary.
a. CL3 through CL5 (All Models)
Move the turbulator setting forward or back one
position at a time to optimize the smoke and
CO2 readings. Refer to Figure 8 and Table 14B
at the rear of this manual.
5. ADJUST DRAFT REGULATOR for a draft of
-0.02" (water gauge) over the re after chimney has
reached operating temperature and while burner is
running.
6. 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
to 12.5% with draft of -0.02” (water gauge) in re
box. These settings will assure a safe and efcient
operating condition. If the ame appears stringy
instead of a solid re, try another nozzle of the same
type. Flame should be solid and compact. After all
adjustments are made, recheck for a draft of -0.02”
over the re.
7. ONLY READJUST THE HEAD/TURBULATOR
SETTING if necessary.
a. CL3 through CL5 (All Models)
Move the setting forward or back one position at
a time to optimize the smoke and CO
2
readings.
b. Steps outlined in Paragraph 5 and 6 above must
be repeated every time the Head/Turbulator or
Air Damper Setting is readjusted.
8. Turn “OFF” burner and remove Riello Combination
Pressure Gauge and Bleeder Valve Assembly.
Install pressure port/bleeder plug and tighten. Start
burner again.
WARNING
DO NOT loosen or remove any oil line ttings
while burner is operating.
9. FLAME FAILURE
The CL boiler controls operate the burner
automatically. If for unknown reasons the burner
ceases to re 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 IX, Troubleshooting, Paragraph B. If
the failure re-occurs, call your heating contractor
immediately before pressing the reset button.
WARNING
DO NOT attempt to start the burner when excess
oil has accumulated, when the boiler is full of
vapor, or when the combustion chamber is very
hot.
10. CAD CELL LOCATION AND SERVICE
The burner is supplied with a cadmium sulde ame
detector mounted at the factory, mounted on the
bottom of the electronic ignitor. See Figure 27. To
service cad cell or to replace the plug in portion,
swing open the ignitor. After service is complete, be
sure to fasten down the ignitor.