Riello 40 F3 Service Manual download pdf (Page 13)

C6501000 F3-F5 I-O manual Rev4_3 12

NOTE: Do not exceed pipe lengths indicated in

chart.

NOTE: Do not exceed pipe lengths indicated in

chart.

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 10 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.

TWO LINE (LIFT SYSTEM)

2 LINE (LIFT) SYSTEM-PIPE

LENGTHS

H 3/8” OD 1/2” OD

FT M FT M FT M

0.0 0.0 115 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-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-

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Riello 40 F3 Service Manual Page 13