11
CF2500/CF3500 Burner Manual
Figure 9 – One-pipe Oil Flow
Figure 10 – Two-pipe Oil Flow
Legend (Figures 9 & 10)
aReturn port
bPump outlet
cSolenoid valve
dNozzle
gPump inlet
kBy-pass loop
pBleed 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