Single Line (Gravity Feed System); Two Line (Lift System) - Riello F15 Installation, Use And Maintenance Instructions

SINGLE LINE (GRAVITY FEED SYSTEM)

A) The burner is shipped configured for use in single
line applications. No changes to the oil pump are
required for use in single line applications.
NOTE: If the pump cover (1) is removed for any reason,
be sure the O-ring (2), is properly seated in the pump cov-
er (1) before re-attaching the pump cover to the pump
housing.
B) Connect the pipe connector to the SUPPLY PORT
(6) of the pump. Attach the required piping to this
pipe connector. Be sure that the plug in the
RETURN PORT (9) is tightened securely.

TWO LINE (LIFT SYSTEM)

A) If a two line system is required, install the By-pass
plug (4) provided. The by-pass plug is installed in
the return port (9) of the pump.
A 2.5 mm hexagonal key provided with the by pass
plug is to be used to install the plug.
DO NOT use an inch size hexagonal key, damage
to the by-pass plug may result. When operating on
a two line system, supply and return lines should
be the same diameter and both should extend to
the same depth inside the fuel tank.
Be sure there are no air leaks or blockages in the
piping system.
Any obstructions in the return line will cause failure
of the pump shaft seal. Do not exceed the pipe
lengths indicated in the tables.
To install the by-pass plug:
1) Remove the return plug (9).
2) Install the by-pass plug (4) using the 2.5 mm
hexagonal key.
B) Attach the two PIPE CONNECTORS (5) to the
pump SUPPLY and pump RETURN PORTS (6 and
9). Attach the required piping to these two pipe
connectors using the NPT/METRIC ADAPTERS
that are supplied with the burner.
WARNING:
- Pipe dope or Teflon tapes are NOT to be used on
any direct oil connection to the fuel pump.
- The height 'P' in Pipe Length Charts should not
exceed 13 feet (4 m).
- The vacuum should not exceed 11.44 inches of
mercury.
IMPORTANT:
An external, appropriately listed and certified oil
filter must be placed in the fuel line between the
fuel tank and the burner pump.
2902555
ATTENTION:
do not exceed
pipe lengths
indicated in chart!
SINGLE LINE SYSTEM - PIPE LENGTHS
H
Feet Meters
1 1/2 0.5
3 1.0
5 1.5
6 1/2 2.0
ATTENTION:
do not exceed
pipe lengths
indicated in chart!
2 LINE (LIFT) SYSTEM - PIPE LENGTHS
H
Feet Meters
0 0.0
1 1/2 0.5
3 1.0
5 1.5
6 1/2 2.0
9 1/2 3.0
11 3.5
8
D6009
3/8" OD 1/2" OD
Feet Meters Feet
33 10 65
65 20 130
130 40 260
195 60 325
3/8" OD 1/2" OD
Feet Meters Feet
115 35 330
100 30 330
80 25 330
65 20 295
50 15 230
25 8 100
20 6 65
GB
Meters
20
40
80
100
D6008
Meters
100
100
100
90
70
30
20