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FUEL SUPPLY / INSTALLATION
OIL STORAGE TANKS:
Oil storage tanks made of steel and all connecting
equipment (e.g. filling pipes, and vent pipes) should
comply with B.S. 799 Part 5. Galvanised steel must
not be used. Polyethylene (Plastic) tanks should
comply with OFTEC standard OFS T100 and or
equivalent. Oil should never be stored in transulent
plastic containers.
In order to enable sediment and water to be
removed from steel tanks a drain valve must be fit-
ted.
An isolating valve should be fitted at the tank outlet,
in an accessible position so that the oil supply to the
appliance can be shut off if required. This isolating
valve must be of a type suitable for use with oil. (see
Fig.2)
Oil storage tanks support must be carried out in
accordance with the tank manufacturers recommen-
dations. Tanks should be located in the most un-
obstructive position possible having taken safety, fill-
ing, maintenance and the need, if any to provide a
head of oil for the burner into consideration.
FUELS
USE ONLY 28 SECOND VISCOSITY KEROSENE
FUEL OIL TO B.S. 2869 PART 2 CLASS C2 OR
EQUIVALENT.
FUEL SUPPLY LINE
The oil supply line from the oil storage tank to the
appliance should be of an approved and suitable
pipe with a minimum internal diameter of 8mm
(5/16") and connected to the oil control valve.
Oil supply pipes are normally run in annealed copper
tube complying to EN 1057, it can be obtained in coil
or half hard form for use with bending machines.
This pipe can also be obtained with protective plas-
tic sheathing applied. Fittings for copper pipe should
be compression of the flared manipulative type to
B.S. 864: Part 2 1983. Steel pipes complying with
B.S. 1387: 1985, if used, must be protected from
corrosion. Galvanised pipe and fittings must not be
used.
Screwed joints must only be made with taper
threads complying to B.S. 1740 : Part 1 1971.
Jointing materials must be of types intended for use
with oil fuel. Special petroleum resisting compounds
and PTFE tape are suitable. External pipes should
preferably be run with a continuous rise towards the
direction of flow, so that air can be vented off. It is
important to avoid high points which could cause air
locks.
Exposed lengths of oil supply pipe must be properly
supported by purpose made clips securely fixed in
place. Metal clips formed so as to hold the pipe on
to a saddle are preferred. Consideration should be
given to avoiding routes which expose the pipe to
severe chilling which could cause freezing of the oil.
Where pipes are buried, they must be protected
from accidental damage. The use of joints under-
ground should be avoided if at all possible. If joints
have to be fitted in pipes laid below ground, access
to them must be provided.
An oil filter (5 - 10 micron) and a stop valve must be
fitted to the fuel feed line and located near the sup-
ply tank and facilities should be provided to enable it
to be serviced without draining down the oil supply
system. (See Figs. 2 & 3).
At the point where the oil line enters the building, the
oil line must be fitted with an approved remote act-
ing fire valve which meets the requirements of B.S.
5410 : Part 1, fitted with the appropriate length of
capillary. The temperature rating limit should be
o
90
C. The heat sensoring phial of the fire valve
must be fitted to the clip provided on the back of the
transformer cover. It is absolutely essential that the
fire valve is located externally and is as close as
possible to the appliance. For existing installations
where the oil supply is built into the structure inter-
nally, the remote acting fire valve should be fitted
where the oil supply line is first exposed internally.
This type of layout is not recommended for new
installations.
6
CLIP
Fig.2
Fig.3
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