Burnham BOILERS - Manual (Page 28)

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A . General.
1. Use flexible oil line(s) so that burner can be
removed without disconnecting the oil supply.
2. A supply line fuel oil filter is recommended as a
minimum for all firing rates but a pleated paper
fuel oil filter is recommended for the lowest firing
rate application to prevent nozzle fouling.
3. Use Flared fittings only. Do not use compression
fittings.
4. Use of a high efficiency micron filter (Garber or
equivalent) in addition to conventional filter is
highly recommended.
VI. Oil Piping
Figure 21: Single-Pipe Installation
NOTICE
Oil piping must be absolutely airtight or
leaks or loss of prime may result. Bleed line
and fuel unit completely.
B . Single-pipe Oil Lines.
1. Standard burners are provided with single-stage
3450 rpm fuel units with the bypass plug removed
for single-pipe installations.
2. The single-stage fuel unit may be installed single-
pipe with gravity feed or lift. Maximum allowable
lift is 8 feet. See Figure 21.