(b) Height between the floor level of the heater and the bottom of the lifter:
8-1/2 ft. (2.5m) maximum
(c) At least 16 in. higher than the heater fuel intake fitting.
2. Max. length of the pipe between the main fuel tank and the lifter:
131 ft. (40m)
If more than 50 ft. (15m), 1/2 in. fuel line is recommended instead of 3/8’’ tubing.
3. If one lifter is used to fuel to several heaters, about 1/3 of the total flow may be lost to internal
resistance. If several heaters are to be used, preferably install the lifter at a midway point
between those heaters.
4.If fuel is to be supplied from a main fuel tank by
gravity flow to a heater on the first floor and
another heater on the second floor will be supplied
by a lifter, the branch point of the fuel line should
be located as close as possible to the outlet of the
main fuel tank.
5. Fueling with a series operating lifters:
(a) This lifter is capable of pumping a maximum
head of 26-ft. (8m). More height can be
accomplished by using additional units in
series. However, please note that when two or
more lifters are connected in series, the fuel
supply line (or head) to the upper lifter(s) must
be approximately 3 1/3 ft. (1 m) longer (less)
than the fuel supply line (or head) for the unit below it. Thus if the upper unit is lifting
the maximum head of 26 feet, the lower unit must only lift approx. 23 feet.
(b) An overflow fuel pipe (return pipe) must be used when operating lifters in series. The
overflow fuel pipe must go to the main fuel tank and be installed so that there is
clearance between the outlet of the overflow fuel pipe and the maximum oil level in the
main fuel tank. A special part is also required in order to attach the overflow fuel pipe to
the lifter. (#22744901)
7
