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Figure 27. Typical Oil Piping for Above Ground (Single-Line) Supply
If fuel pump fails to lift oil, check for air
port plug and repeat priming procedure.
leaks and tighten all fuel fittings. Re-
prime fuel pump by injecting fuel oil into
optional (top) return port. Replace return
R
Top of Tank
8 ft.
Shut-off
Valve
Optional
Fuel
Filter
Alternate
Fuel Line
Entry
Optional
Return
Pressure
Gauge Port
Nozzle
Port
Inlet
Port
Air-Bleed
Valve
Return Port &
Internal By-Pass
Optional
Inlet
Control
Panel
Oil
Furnace
On-Off-Fan
Switch
Floor Cavity
Oil-Gun
Burner
Floor
Flue Gas
Sampling
Hole
Drain
End of Oil Supply Line
3" to 5" Above
Bottom Drain
Guide pipe
Gauge
Vent with
Cap
2" Duplex
Bushing
2" Fill
3/8" Oil Supply Line
Note: Additional venting
may be required if tank
is filled rapidly.