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Instruction Manual – Model CF2300A Oil Burner
8
Form 6104 BCF-23-R0399
Connect fuel line(s)
❏ Fuel unit by-pass plug
• The CF2300A burner is shipped with a by-pass plug in-
stalled in the fuel unit. For low/high operation, the by-
pass plug must be left in the fuel unit
, regardless of
the fuel system used (one-pipe with by-pass loop or two-
pipe). Do not remove the by-pass plug.
Figure 8a – One-pipe oil flow, low fire, “H” pump
Figure 8b – One-pipe oil flow, high fire, “H” pump
Figure 8c – One-pipe oil flow with “B” pump
2310a
d
125 psig
to
175 psig
300 psig
Field-installed
by-pass loop
m
b
g
f
a
e
cc
p
2310b
d
m
300 psig
300 psig
b
g
f
a
e
cc
p
Field-installed
by-pass loop
300 psig high fire
125 to 175 psig low fire
2320a
d
c c
b
m
a
g
f
p
h
Field-installed
by-pass loop
Do not operate the burner unless a return line
or by-pass loop is installed. Failure to follow
this guideline will cause damage to the fuel
unit seals and consequent fuel leakage. This
could result in severe personal injury, death
or substantial property damage.
Legend (see opposite page)
❏ One-pipe oil system by-pass loop
• Refer to Figure 8 (item m). Note the addition of a field-
installed by-pass loop (use
³⁄₈³⁄₈
³⁄₈³⁄₈
³⁄₈" copper tubing) from the
fuel unit Return port to the Inlet port. This line is required
for low/high operation. It simulates the flow of a two-pipe
system at the fuel unit. Figures 8a and 8b are for type H
fuel units. Figure 8c is for a type B fuel unit.
❏ Oil supply/return lines
• Install the oil tank and oil lines in accordance with all
applicable codes.
• Size the oil supply and return lines using the guidelines
given in the fuel unit literature included in the literature
envelope. Oil line flow rate will equal the burner rate for
one-pipe systems. For two-pipe systems, refer to Table 3
for the fuel unit gearset capacity - the rate at which fuel is
recirculated when connected to a two-pipe system. Size
two-pipe oil lines based on this flow rate.
• Install the oil lines using the following
guidelines. Failure to comply could lead
to equipment damage and present a risk of
severe personal injury, death or substan-
tial property damage due to leakage of oil
and potential fire hazard.
• Use only flare fittings at joints and con-
nections. Never use compression fittings.
• Install fittings only in accessible locations
to assure any leak will be detected.
• Where joint sealing is needed, use only
pipe dope. Never use Teflon tape. Tape
strands can break free and damage the fuel
unit.
• Never use a one-pipe oil system with a lift
in excess of 8 feet with a B fuel unit, or 2
feet with an H fuel unit. On two-pipe oil
systems, verify that the suction line vacuum
does not exceed the fuel unit manufacturer’s
recommendation.