Pump Purge; Single Line (Gravity System); Two Line (Lift System) - Riello Burners BF3 Installation Manual

fuel pump.
WARNING: The height "P" in Pipe Length charts on page 11 should not exceed 13 feet (4m).
WARNING: The vacuum should not exceed 11.44 inches of mercury.
WARNING: An external, appropriately listed and certified oil filter must be placed in the fuel
line between the fuel tank and the burner pump.
NOTE: To protect the pump gears. It is advisable to lubricate the pump before purge all air out of oil
line(s) system. Apply oil through the VACUUM PORT.
1)

SINGLE LINE (GRAVITY SYSTEM)

Turn off all power to burner/appliance, and then attach a hose over bleeder plug f i tting put other end of
hose into a bucket. Loosen bleeder plug, when oil comes out of bleeder plug and appears clear tighten
bleeder port plug, and remove hose. The burner should have purge all air of pump, and oil line and
burner is ready to operate.
2) TWO LINE (LIFT SYSTEM) 2 options
A) Turn off the main power source to the burner and
remove the air tube cover. Shine a light source on the
photocell on the control box (now visible where the air
tube cover was removed), return power to the burner
and activate the burner. With the light source in place,
the burner will operate in prepurge only. Once the
burner is purged, turn off the power source and replace
the air tube cover. Return power to the burner. The
burner is now ready to operate.
B) Turn off the main power source to the burner/
appliance and then remove control box module. Get a
jumper wire and jumper sub-base terminals # 5 & # 6, this will operate the motor and pump only
with the control module off. Attach a hose over the bleeder port fitting and put the other end into a
bucket. Restore power and run burner without control box module until oil flows out of bleeder port
fitting and appears to be clear. Remove power and reinstall control box module, now the burner is
ready to operate.
ATTENTION: It is important that the fuel line be completely sealed and free from air leaks or
any internal blockages.
WARNING! WHEN THE BYPASS PLUG IS INSTALLED, A TWO-PIPE SYSTEM MUST BE
USED OR FAILURE OF THE PUMP SHAFT SEAL WILL OCCUR.

PUMP PURGE

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