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To remove the gun assembly once the burner has been installed on the appliance remove the ignitor/housing cover
screw and loosen the screw in the hold-down clip and swing open the transformer. Next, disconnect the copper oil
line where it attaches with a 7/16" hex flare nut on the gun assembly oil line adapter fitting and remove the 9/16" hex
gun assembly locknut. Now, grasp the rear of the gun assembly where the oil line fitting adapter exits through the
housing and pull oil line fitting adapter to the right out of the housing slot and slot plate cover. Gently lift, do not force,
the rear of the gun assembly, rotating the oil line fitting adapter up a 45 degrees pulling the entire gun assembly out
of the air tube and housing opening.
The recommended can be installed into the nozzle body adapter using the following steps. With the gun assembly
removed from the burner, loosen the electrode clamp screw and rotate the electrodes up, out of the way of a nozzle
wrench. Now, thread the nozzle into the adapter finger tight then tighten securely with a nozzle wrench.
Do not over tighten. Next, reposition the electrodes as shown in figure 1. At this time reinstall the gun assembly into
the burner using the preceding steps in reverse order. Position the nozzle face forward to a 5/16" setting behind the
stainless steel air cone as shown in figure 1. Once in the required position, replace the 9/16" hex lock nut and the
7/16" hex flare nut on the gun assembly and tighten the slot cover screw (see figure 2).
CAUTION: Close the ignitor and observe for spring contact with the brass buss bars, taking care not to pinch the igni-
tion transformer lead wires between the housing and cover plate. Reinstall the ignitor/housing cover screw and tight-
en the screw in the hold down clip (see figure 2).
PREPARATION STEPS
1. Calibrate and check operation of combustion analysis equipment, CO
smoke pump tester, fuel gas thermometer and oil pressure/vacuum gages. Follow the manufacture recommen-
dation for proper calibration and check out.
2. Install oil pressure gage and vacuum gage in the outlet pressure and inlet ports of the fuel unit.
3. Set oil burner slotted air band shutter 25% open.
STARTING BURNER
1. Turn off the main power switch to the burner and appliance.
2. Be sure main fuel tank is filled and all manual valves are open between the fuel tank and the burner.
3. Turn on the main power switch to the burner and appliance.
4. Prime the fuel pump per its manufacturers recommendations, check fuel unit for 100 psi delivery pressure and
check system vacuum (see paragraphs under Fuel Units and Oil Lines).
CAUTION: Do not run fuel unit dry for more than five minutes or damage to the fuel unit could result.
10
STARTING PROCEDURE
(carbon dioxide) or O
(oxygen) analyzer,
2
2
CAUTION:
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