User Guide

34
103876-08 - 1/19
CL Installation & Service Manual
Figure 26: Adjusting Fuel Pump Pressure
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. Refer to Figure 26. Refer to
Figure 9 for Riello burner.
b. Locate oil pressure adjusting screw and
turn screw to obtain proper pump pressure,
refer to Tables 14A and 14B at the rear of
this manual.
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.(flame
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 fixed
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 27 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. Readjust the Head Setting, only if necessary.
a. Carlin EZ-1HP and EZ-2HP burners use a
head positioning bar to fix the head setting
based on nozzle size. To adjust this setting,
bar must be changed to the next larger or
smaller bar available.
6. Readjust the Air Damper Setting (air Band/
Air Shutter/Air Gate) on the burner for a light
orange colored flame while the draft over the
fire is -0.02”. 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 -0.02” (water
gauge) in fire box. 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 -0.02” over the
fire.
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 fittings while burner is operating.
5 System Start-Up (continued)