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Section 6 - Fuel Supply Pump/Piping
12.
Do not allow the fuel level in the tank to cover the outlet of the return line.
13.
When using a bypass regulator install the fuel supply line from the fuel bypass regulator
(port B) to the inlet port on the left side of the burner using 1/2” inside diameter (.493)
steel pipe, or 1/2” outside diameter copper tubing. The maximum distance of this line is 25
feet.
The fuel supply line must be run below the burner at all times. If the fuel supply line
runs above the burner it will create head pressure. This head pressure will over-fire the
burner voiding the warranty.
When using the optional metering pump install the fuel supply line from the pump
assembly to the burner.
14.
Keep the fuel supply lines at least 1” off any outside walls.
15.
The fuel supply line must gradually rise to the burner. It should not be higher than
the burner. Avoid creating any high points in the line that will trap air bubbles.
Oil-Pressure Bypass Regulator
B.
Port to the oil inlet on the burner assembly.
Install 1/2” O.D. (min.) copper tubing. Failure
to install this line
properly will result in
damage to your heater and will void your
warranty.
T.
Port to the oil supply tank for the overflow
return line. Install 3/8” nipple, 1/2” x 3/8”
reducer, and 1/2“ schedule 40 pipe.
This line
MUST run straight into the tank, and
should not be submerged in oil. No elbows
should be used. Failure to install this line
properly will result in damage to your
heater, and will void your warranty.
P.
Port from the outlet side of your fuel supply
pump. Install 1/2” O.D. min. copper tubing.
Failure to install this line properly will result
in damage to your heater, and will void your
warranty.
B
P
T
Bypass Regulator
Fuel Line to
Burner
Fuel Return to
Top of Tank
Fuel Line from
Pump
3/8” Close
Nipple
1/2” x 3/8”
Reducer
