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7 OIL SUPPLY
7.1 General
The oil supply system to the boiler may be of single pipe, two pipe or a suction oil
supply configuration with deaerator as appropriate to the installation situation.
Refer to BS5410: Part 1 and OFTEC Technical Book 3: Domestic & Commercial
Requirements for Oil Storage and Supply Equipment for guidance and
representative examples oil supply system types. In all cases the oil supply
system must comply fully with the requirements of BS5410 and Technical Book 3.
The oil supply system installed must be constructed to allow the proper service
and maintenance of the oil supply system and its components including any
isolation valve(s), oil filter or water separator fitted.
The use of plastic oil storage tanks, with or without top outlet is recommended.
Where steel tanks are used these must be constructed in accordance with BS
799: Part 5 and must be protected against corrosion. Oil should never be stored in
translucent plastic containers.
The pipework from the oil tank to the appliance should be run in plastic-coated
annealed copper. Steel and aluminium pipes if used must be protected from
corrosion. Galvanised pipe and fittings must not be used.
Pipework with an inferior degree of fire resistance to those constructed of copper
or steel, such as braided flexible oil lines, must be contained within the boiler
enclosure and be protected by an appropriate remote acting fire valve; the fire
valve itself should be located outside the boiler enclosure. Note too that in
externally located boiler appliances, flexible oil lines may also be subject to
accelerated deterioration if permitted to extend outside of the boiler enclosure
where they may be exposed to the elements and/or accidental damage, and for
this reason also must be completely contained within the boiler enclosure.
The oil supply system must include at least one appropriate filter with a filtration
rate of not greater than that specified by the burner manufacturer. See the related
burner manual supplied.
Equipment failures due to water and other sources of fuel contamination are not
covered under warranty.
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