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CF375 Burner Manual
Figure 8 - Adjusting plate assy.
Figure 7 - Nozzle line assembly in burner
1-1/2”
Legend (Figure 8)
c
Bottom acorn nut
d
Fastener
e
Indicator adjusting plate
f
Secondary adjusting plate
Set dimension Z
Loosen acorn nut c in Figure 8. Slide the nozzle line
and plate assembly until dimension Z in Figure 7 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 later in this
manual.
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 5.
Secure the burner to the appliance by tightening the nuts
on the burner fl ange mounting studs.
Fuel unit by-pass plug
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Section: Mount the Burner
Do Not Install By-pass Plug
with 1-Pipe System
Failure to comply could cause immediate pump seal
failure, pressurized oil leakage and the potential for a
fi re and injury hazard.
The burner is shipped without the by-pass plug installed.
Intall the by-pass plug in two-pipe oil supply systems
ONLY.
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e
d
f
c
The CF375 burner is shipped without the by-pass
plug installed in the fuel line.
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The by-pass plug must NOT be installed when using
with a one-pipe oil system (Figure 10).
The by-pass plug MUST be installed when using a
two-pipe oil system (Figure 11)
.
Installing the oil tank and supply system
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Fuel unit
model number
Gearset capacity
(gallons per hour)
A2VA-7116 17
A2YA-7916 20
B2VA-8216 21
B2YA-8916 25
Table 3 - Fuel unit gearset capacities
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 fi ring rate for one-pipe
systems. For two-pipe systems, refer to Table 3 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.
Fuel line valves and fi lter
Install an oil fi lter sized to handle the fuel unit
gearset fl ow capacity (Table 3) 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 rated for at least 10 microns.
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Install Oil Supply To
Specifi cations
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.
Carefully install the oil supply lines, fi ttings and
components 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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