21
VI: SYSTEM START-UP (continued)
4. CHECKOUT
Put the system into operation and observe at least
one complete cycle to make sure that the controller
operates properly. See Operating Section to use
Boiler Control Display to assist in determining
system operation.
E.
CHECK / ADJUST OIL BURNER BEFORE
STARTING.
Natural Vent Applications:
1. CHECK BURNER SETTINGS and readjust if
necessary, see Burner Specifications, Table 4. Turn
off power to burner before proceeding.
2.
Beckett AFG Burner
This Beckett AFG Burner is equipped with a non-
adjust MB(L1) Fixed Head.
a. Remove Gun Assembly.
b. Verify nozzle size, head size, gun setting, and
positioning of electrodes. This information is
shown in Figure 17 and Figure 18, and Beckett
AFG Burner Specifications, Table 4. Replace
Gun Assembly.
c. Inspect Beckett head setting. Even if factory
set, verify that the "Z" dimension has not been
changed. The important "Z" dimension is the
distance from the leading edge of the head to the
end of the air tube. This distance for L1 & L2
heads is 1-3/8" if the tube has a straight shroud
or 1-3/4" if the air tube has a conic shroud.
i.
Disconnect the oil connector tube from the
nozzle line. Loosen the splined nut and hex
head screw securing the escutcheon plate to
the burner housing.
ii.
Place the end of a ruler at the leading edge
of the head and, using a straight edge across
the end of the air tube, measure the distance
to the end of the tube. Only readjust if
necessary. To readjust, slide the nozzle line
forward or back until the "Z" is correct.
iii.
Tighten the hex head screw to secure the
escutcheon plate to the burner chassis. Then
tighten the splined nut and attach the oil
connector tube.
d. Check burner air band and air shutter settings.
Readjust if necessary, see Burner Specifications
Table 4.
e. OPEN ALL SHUT-OFF VALVES in the oil
supply line to the burner.
f. ATTACH A PLASTIC HOSE TO FUEL PUMP
VENT/BLEED FITTING and place the other
hose end into an empty container to catch the oil.
g. SLIGHTLY OPEN FLAME OBSERVATION
PORT COVER on burner swing door, enough to
insert draft gauge probe later.
Boiler
Model
Firing
Rate
(GPH)
Head
Static
Disc
Nozzle
Setting
Manufacturer
GPH
Angle Type
Air
Shutter
Air
Band Head
Pump Pressure
(PSIG)
V13 RO/FO
0.75
*
MB(L1)
3-3/8U
Delavan
0.60
60°
W
7
0
Fixed
140
V14 RO/FO
1.05
*
F3
3-1/2U
Delavan
0.85
70°
W
9
0
Fixed
140
*
Low Firing Rate Baffle Installed
Settings are approximate and must be verified by Smoke and Carbon Dioxide measurement. Readjust where necessary.
Table 4: Beckett AFG Burner Specifications
