Riello 40 F5 Installation & Operating Manual page 12

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
cover (1) before re-attaching the pump cover to the pump housing.
SINGLE LINE SYSTEM-PIPE LENGTHS
H 3/8" OD 1/2" OD
FT M FT M FT M
1.5 0.5 33 l0 65 20
3.0 1.0 65 20 130 40
5.0 1.5 130 40 260 80
6.5 2.0 195 60 325 100
B) Connect the pipe connector to the SUPPLY PORT (5) of the
pump. Attach the NPT adapter to the pipe connector.
Attach the required piping to this pipe adapter. Be sure that
the plug in the RETURN PORT (7) is tightened securely.
NOTE: Do not exceed pipe lengths indicated in
chart.
TWO LINE (LIFT SYSTEM)
1
P
NOTE: Do not exceed pipe lengths indicated in
chart.
2 LINE (LIFT) SYSTEM-PIPE
LENGTHS
H 3/8" OD 1/2" OD
FT M FT M FT M
0.0 0.0 ll5 35 330 100
1.5 0.5 100 30 330 100
3.0 1.0 80 25 330 100
5.0 1.5 65 20 295 90
6.5 2.0 50 15 230 70
9.5 3.0 25 8 100 30
11 3.5 20 6 65 20
A) If a two-line system is required, install the By-pass plug provided. The by-pass plug is installed in the return
port of the pump. A 2.5-1ran 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-
Standard 40 F3-F5 I-O manual Rev4 l.doc Page 12 of 12