Layout of oil supply system
9
Buderus Blue Flame Burner BE 1.3 - 2.3 - Specifications subject to change without notice.
37
9.2
Sizing the oil supply lines
The burner is installed in single pipe systems. The suc-
tion and return lines of the burner must be connected to
the furnished “Tigerloop” de-aerator and oil filter. A sin-
gle fuel supply line then runs from the “Tigerloop” filter to
the oil tank. (see Fig. 35 ).
Consider all horizontal and vertical pipe lengths as well
as all elbows and valves when calculating the total
equivalent length of the oil supply system.
Table 12 shows the maximum lengths of supply line(s)
in feet which are dependent on suction height and small-
est pipe diameter. The individual resistance of shut-off
valves, check valves and 4 elbows has been included in
the table.
The maximum allowed supply length must be reduced
accordingly in case of additional valves or fittings in the
supply line.
Be extremely careful when repositioning the oil line.
The oil supply line must be terminated sufficiently close
to the burner that the furnished flexible oil lines can be
connected without undue strain.
Use approved materials for the oil line. Use only metallic
flared connections when using copper supply lines.
Maximum supply lengths (L) with inner diameter
3/8” for suction lines
9.3
Testing for oil line vacuum
The maximum vacuum (negative gauge pressure) of 5.8
psi (13.4 ft of head), measured at the suction connection
of the oil pump, can never be exceeded, regardless of
the fill level of the tank.
Fig. 35
1-pipe system (oil tank above oil pump)
Item 1:
Burner
Item 2:
Check valve
Item 3:
Oil filter with built-in shut-off valve
Item 4:
Suction cup
Item 5:
Oil tank
Item 6:
Tank valve with quick disconnect
1
6
4
3
5
7
NOTICE
Installation of the Tigerloop Ultra with oil fil-
ter and automatic air elimination is re-
quired for the G125 BE burner.
1-Pipe System
L
Oil tank above burner
to 330 feet
Oil tank below burner
H to10 feet
to 110 feet
Table 12 Maximum lengths for oil pipe
NOTICE
The vacuum in the oil line should be mea-
sured with a 3.3 ft. long transparent hose to
test and verify the integrity of the oil supply
line.