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GB
OIL LINE CONNECTIONS
This burner is shipped with the oil pump set to operate on a single line system.
To operate on a two-line system the by-pass plug must be installed.
WARNING: Do not operate a single line system with the by-pass plug installed. Operating a single line system
with the by-pass plug installed will result in damage to the pump shaft seal.
NOTE: Pump pressure must be set at time of burner start-up. A pressure gauge is attached to the PRESSURE PORT
(8) for pressure readings. Two PIPE CONNECTORS (6) are supplied with the burner for connection to either a single or
two-line system. Also supplied are two ADAPTORS (3), two female 1/4" NPT, to adapt oil lines to burner pipe connec-
tors. All pump port threads are British Parallel Thread design. Direct connection of NPT threads to the pump will dam-
age the pump body.
Riello manometers and vacuum gauges do not require any adapters, and can be safely connected to the pump ports.
An NPT (metric) adapter must be used when connecting other gauge models.
1
2
3
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.
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.
SINGLE LINE SYSTEM-PIPE LENGTHS
H
3/8" OD
FT
M
FT
1.5
0.5
33
3.0
1.0
65
5.0
1.5
130
6.5
2.0
195
9
1/2" OD
M
FT
M
10
65
20
20
130
40
40
260
80
60
325
100
5
6
4
ATTENTION:
do not exceed
pipe lengths
indicated in chart!
8
7
4
D6009
3222
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