16
Install oil tank and piping in accordance with the
National Board of Fire Underwriters and local
regulations. Oil storage tank, vent, fill pipe and caps
should be as prescribed by local codes. In no case
should vent pipe be smaller than 1¼” I.P.S. Fill pipe
should not be less than 2” I.P.S.
Suction line from tank to burner should be one
continuous piece of tubing to prevent air entering
line. Suction line, must be ⅜” O.D. copper tubing
for runs of 50 feet or less, and ½” O.D. for longer
runs. Oil return line, same size as suction line,
must be used on any installation where bottom of
tank is below fuel unit of burner. Oil lines should
be buried or otherwise protected from mechanical
injury. Flare fittings on all oil lines are recommended.
Compression fittings on suction line often allow air
to be drawn into fuel pump, making it difficult to
maintain oil pressure at nozzle. Do not run overhead
fuel lines from tank to oil burner.
Fuel pump connections and by-pass should be made
according to instructions attached to fuel pump. If
tank is more than 20’ from boiler, a two stage fuel
unit should be installed in place of single stage pump
supplied as standard equipment with burner. Make
certain rotation and speed are same and pump is
suitable for burner horsepower rating.
Oil line filter and shut-off valve should be installed
in suction line. Shut-off valves should be installed
in both suction and return lines at burner for
convenience in servicing burner. Allow extra tubing
at burner so burner may be removed from boiler for
cleaning without disconnecting tubing. (See figures
#15 & #16
, below). An optional flexible oil line is
available.
OIL TANK AND PIPING
Figure #15 - Typical Installation Single Pipe Oil System
Figure #16 - Typical Installation Two Pipe Oil System
