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Connect Fuel Lines
•
Oil Leak and Fire Hazard
!
WARNING
Install the oil tank following applicable stan-
dards in the U.S. by referring to the latest
edition of NFPA 31 or CSA-B139 & CSA-B140
in Canada, and all authorities having jurisdic-
tion.
CAUTION
!
!
Do Not Use Tefl on Tape
Damage to the pump could cause impaired
burner operation, oil leakage and appliance
soot-up.
•
Never use Tefl on tape on fuel oil fi ttings.
•
Tape fragments can lodge in fuel line components
and fuel unit, damaging the equipment and pre-
venting proper operation.
•
Use oil-resistant pipe sealant compounds.
NOTICE
To determine the proper fuel line
size, refer to the fuel pump manufacturer's instruc-
tions provided with the burner. Refer to Figure 5 or
Figure 6 for typical installation layouts.
The burner is supplied with either a one-stage
pump or a two-stage pump based on the oil supply
system requirements. Consult the instructions
provided with the pump for installation specifi ca-
tions.
When installing a one-pipe system, connect the
inlet line to the pump inlet. The fuel pump may be
installed with gravity feed or lift. The maximum
allowable lift for a single pipe installation is 8 ft.
When installing a two-pipe system, remove the
1/16" pipe bypass plug from plastic bag attached
to fuel unit. Remove 1/4" plug from return port.
Insert and tighten the bypass plug. Attach return
and inlet lines. The return line should terminate
approximately 3 to 4" above supply line inlet.
Failure to do this may introduce air into the system
and could result in loss of prime.
Fuel Line Installation
•
Route the fuel line through the opening in the
bottom of the burner cover. Continuous lengths
of heavy wall copper tubing are recommended.
Always use fl are fi ttings. Never use compression
fi ttings.
RWB 6104 BNX
Inspect/Prepare Installation Site
Always install fi ttings in accessible locations. To
avoid vibration noise, fuel lines should not run
against the appliance or ceiling joists.
•
Fuel Line Valves and Filter
Install two high quality, oil duty rated, fusible
handle design shutoff valves in accessible loca-
tions on the oil supply line. Locate one close to the
tank and the other close to the burner, upstream of
the fi lter for service access.
Install a generous capacity fi lter inside the building
between the fuel tank shutoff valve and the burner,
locating both the fi lter and the valve close to the
burner for ease of servicing. Filter should be rated
for 50 microns or less.
NOTICE
To further protect the fuel supply
system and reduce nozzle orifi ce plugging with
fi ring rates below 0.75 gph, a dual fi ltration sys-
tem can be installed. This typically consists of a
50 micron primary fi lter, located near the fuel tank
and a secondary fi lter rated for at least 10 microns
located near the burner.
Fuel supply level with or above burner
•
Do Not Install Bypass Plug
WARNING
!
with 1-Pipe System
Failure to comply could cause Immediate pump
seal failure, pressurized oil leakage and the
potential for a fi re and injury hazard.
•
The burner is shipped without the bypass plug
installed.
•
Install the bypass plug in two-pipe oil supply sys-
tems ONLY.
CAUTION
!
!
Damage to the fi lter or pump seals could cause
oil leakage and a fi re hazard.
•
The oil supply inlet pressure to the burner cannot
exceed 3 psig.
•
Insure that a pressure limiting device is installed
in accordance with the latest edition of NFPA 31.
Do NOT install valves in the return line. (NFPA
•
31, Chapter 8.)
Gravity Feed Systems: Always install an anti-
•
siphon valve in the oil supply line or a solenoid
valve (RWB Part # 2182602U) in the pump/noz-
zle discharge tubing to provide backup oil fl ow
cut-off protection.
Oil Supply Pressure
Control Required
Page 9
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