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Page 8 6104 BCF3 R02
Set dimension Z
Loosen fastener c in Figure 6. Slide the nozzle line and
plate assembly until dimension Z in Figure 5 is 1-1/2”
±1/16”. When dimension Z (from end of air tube to fl at
area of front face of head) is correctly set, tighten acorn
nut c.
Attach the oil line from the oil valve to the nozzle line end.
Tighten securely.
Before proceeding, check dimension Z once again. Loosen
acorn nut c if necessary to reposition the nozzle line. Once
dimension Z is set, do not loosen the acorn nut c again.
Note that for the setting of fastener d, refer to Initial Head
Position procedure on Page 10.
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Figure 6 - Adjusting plate assy.
Legend (Figures 5 and 6)
c
Bottom acorn nut
d
Fastener
The burner is shipped without the by-pass plug in-
stalled.
Intall the by-pass plug in two-pipe oil supply systems
ONLY.
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Failure to comply could cause immediate pump
seal failure, pressurized oil leakage and the po-
tential for a fi re and injury hazard.
Do Not Install By-pass
Plug with 1-Pipe System
e
Indicator adjusting plate
f
Secondary adjusting plate
Install the oil tank and oil lines in accordance with all
applicable state and local codes.
Size the oil supply and return lines using the guidelines
given in the fuel unit literature included in the literature
envelope. Oil line fl ow rate will equal the burner rate for
one-pipe systems. For two-pipe systems, refer to Table 2
for the fuel unit gear set capacity - the rate at which fuel
is recirculated when connected to a two-pipe system. Size
two-pipe oil lines based on this fl ow rate.
Use continuous lengths of heavy-wall copper tubing,
routed under the fl oor where possible. Do not attach fuel
lines to the appliance or to fl oor joists if possible. This will
reduce vibration and noise transmission problems.
Install an oil fi lter sized to handle the fuel unit gearset fl ow
capacity (Table 2) for two-pipe systems. Size the fi lter
for the fi ring rate for one-pipe systems. Locate the fi lter
immediately adjacent to the burner fuel unit.
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Carefully install the oil supply lines, fi ttings and com-
ponents using the guidelines provided in this section.
The oil supply must comply with the latest edition
of NFPA 31 (Canada CSA B139) and all applicable
codes.
Do NOT install valves in return lines.
If the oil supply inlet pressure to the pump exceeds 3
psig or for gravity feed systems, install an oil safety or
pressure reducing valve (Webster OSV, Suntec PRV or
equivalent).
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Failure to properly install the oil
supply system could cause oil
leakage, equipment malfunction,
puff-back of hot gases, heavy
smoke, asphyxiation, explosion and
fi re hazards.
Install Oil Supply To
Specifi cations
Fuel unit by-pass plug
Figure 5 - Nozzle line assembly in burner
1-1/2”
Insert burner
Position the burner in the front of the appliance and loosely
tighten the nuts on the mounting studs. The burner should
be pitched downward 2° as shown in Figure 3.
Secure the burner to the appliance by tightening the nuts
on the burner fl ange mounting studs.
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The CF375 burner is shipped without the by-pass plug
installed in the fuel line.
The by-pass plug must NOT be installed when using
with a one-pipe oil system.
The by-pass plug MUST be installed when using a
two-pipe oil system
.
Oil supply/return lines
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