Installation guide

8
Disadvantages:
(1) Exposed to cold and moisture. (These
problems can be reduced by providing a
shelter for the _k.)
(2) Take up outdoor space.
(3) May detract from appearance of home.
Indoor Tanks
VENTll_
Courtesy of Suntec Industries, Inc.
• 1%" MIN.
_LK_ SHUT-OFFVALVE
LINE
FIGURE 12 Indoor tank
Advantages:
(1) Not affected by outside cold and moisture.
(2) Less expensive to install and service than
underground tanks.
(3) Leaks are unlikely to occur. If they do, they
are easily spotted and repaired.
Disadvantages:
(1) Take up space inside home.
(2) Some oil smell may be present.
Oil Delivery Systems
The oil delivery system includes all components
required to transport oil from the storage tank
to the burner. These include pumps, pipes,
valves, filters, and controls. Inspecting these
components should be a part of scheduled
maintenance service.
When diagnosing combustion problems, the oil
delivery system should always be considered as
a possible contributing factor. Check for proper
oil pressure, viscosity, and cleanliness. Filters
should be changed at regular intervals. Compres-
sion fittings can cause air leaks and should not
be used.
In some cases combustion problems can be
alleviated by increasing oil pressure to the
nozzle. If cold oil is a problem, oil line heaters
can be installed. Always follow burner
manufacturer's instvactions when adjusting oil
pressure or installing heaters.
Oil Burners
The functions of an oil burner are to break fuel oil
into small droplets, mix the droplets with air, and
ignite the resulting spray to form a flame.
Combustion Chambers
The purpose of the combustion chamber is to
reflect heat back into the flame to aid the combus-
tion process and achieve more complete burning
of oil. See page 14 for more details.
Heat Exchangers
The purpose of the heat exchanger is to transfer
heat from the burner flame to the water or air used
to heat the home. The heat exchanger is an
integral part of the boiler or furnace. The role of
the serviceman is usually limited to inspection
and cleaning. However, this is an extremely
important role. If soot is allowed to accumulate on
the heat exchanger, the efficiency of the heating
appliance can be seriously impaired. Proper
adjustment of the burner to avoid smoke (the
cause of soot) is essential to keeping the heat
exchanger clean. See page 18 for more details.
Flue Pipes
Flue pipes serve two vital functions:
(1) They convey combustion gases from the
heating appliance to the chimney or vent.
Since these gases are potentially harmful to the
home and its residents, these pipes must be
sealed tightly to prevent leakage. In most
chimney systems, flue pipes are under a
negative pressure created by draft, which aids
in preventing leaks.
(2) Flue pipes convey combustion gases that
create the draft to assist in drawing com-
bustion air into and through the burner in
chimney systems.