UTICA BOILERS SFM6225W Installation, Operation And Maintenance Manual page 13

Oil tank and piping should be installed in accor-
dance 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 the vent pipe be smaller
than 1 ¼" I.P.S. The fill pipe should not be less
than 2" I.P.S.
The suction line from the tank to the burner should
be one continuous piece of tubing to prevent air
entering the line. The suction line, must be ⅜" O.D.
copper tubing for runs of 50 feet or less, and ½"
O.D. for longer runs. An oil return line, same size
as the suction line, must be used on any instal-
lation where the bottom of the tank is below the
fuel unit of the burner. Oil lines should be buried or
otherwise protected from mechanical injury. Flare
fittings on all oil lines are recommended. Compres-
sion fittings on the suction line often allow air to
be drawn into the fuel pump, making it difficult to
coMBusTion air supplied froM inside The Building
APPROVED FITTINGS
TYPICAL INSTALLATION SINGLE PIPE OIL SYSTEM WITH 2 OR MORE UNITS
SWING JOINTS
OIL TANK
OIL FILTER
OIL TANK AND PIPING
VENT PIPE
FILLER PIPE
OIL GAUGE
MINIMUM
SHUT OFF VALVE
NIPPLES
maintain oil pressure at the 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 the fuel
pump. If tank is more than 20' from the boiler, a
two stage fuel unit should be installed in place of
the single stage pump supplied as standard equip-
ment with the burner. Make certain the rotation and
speed are the same and the pump is suitable for
the burner horsepower rating.
An oil line filter and shut-off valve should be in-
stalled in the suction line. Shut-off valves should be
installed in both the suction and return lines at the
burner for convenience in servicing burner. Allow
extra tubing at burner so burner may be removed
from boiler for cleaning without disconnecting tub-
ing. (See figures #7 & #8). An optional flexible
oil line is available.
figure #7
REFER TO NATIONAL BOARD OF
FIRE UNDERWRITERS
CLOSE
TEES
OIL LINE MUST BE BURIED OR OTHERWISE
PROTECTED FROM DAMAGE. MINIMUM
.5" IPS OR 1/2" O.D. COPPER TUBING
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