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6104 BCF35 R11 Page 11
Figure 9 – One-pipe Oil Flow
Figure 10 – Two-pipe Oil Flow
Legend (Figures 9 & 10)
a Return port
b Pump outlet
c Solenoid valve
d Nozzle
g Pump inlet
k By-pass loop
p Bleed port
Nozzle Pressure – The fuel unit nozzle port
pressure is factory set at 300 psig. Some
original equipment manufacturer burner
applications may call for a lower pressure to
obtain a required fi ring rate. Do not change
this pressure unless directed to do so by the
appliance manufacturer.
200 psig
to
300 psig
200 psig
to
300 psig
200 psig
to
300 psig
200 psig
to
300 psig
Section: Connect Fuel Lines