If flue pipe is used to connect the appliance to the
chimney it must be between 100 & 125 mm (4-5")
internal diameter.
The chimney termination must not be subjected to
down draughts. If necessary an anti-down draught cowl
may be fitted. The required draw for this appliance is
0.17 mbar (0.07 in H2O).
The boiler waterways totally enclose the combustion
chamber. This means that the maximum temperature
below the boiler is 100°C and therefore a
constructional hearth is not required.
The hearth and base within the fireplace opening must
be made from non-combustible material and must be
flat and level. The hearth must be flat to allow easy
fitting of parts on the fire. When positioning the boiler
ensure that the side flanges on the boiler come level
with the face of the fire surround.
The fire surround should be made from non
combustible material and have opening dimensions
shown in Fig. 7 .
The Charnwood Oil Boiler is set up to burn Kerosene
28 second viscosity oil to BS2869 Part 2 1988 Class
C2. It comes complete with a flexible oil line and shut
off valve, to which the oil supply line should be
connected.
When considering where to site the oil storage tank,
consideration should be given to the access required by
fuel delivery lorries. Tank positioning must also be in
accordance with BS5410 Part 1 and OFTEC Technical
Book 3.
Oil tanks should have the following items:
A valve fitted to the outlet
Sludge valve (on steel tanks)
Oil level indicator
Hinged fill and vent cover or separate fill
connection and vent. The fill and vent must be
either suitably capped or have a return bend to
keep out dirt and water.
Steel tanks should be mounted on suitable supports. If
they are mounted on blocks or bricks then a damp
proof membrane should be fitted between the
supports and the tank. Steel tanks should slope 20 mm
HEARTH AND FIRE SURROUND
OIL SUPPLY
per 1m of length downwards from the oil outlet to the
sludge cock fitted at the opposite end
Plastic tanks should be UV stabilised for protection
from sunlight. They do not need to stand on piers but
should be supported across the entire base. Refer to
the manufacturers instructions for full details.
Be aware of pollution prevention regulations and the
need for bunding if the tank is close to water courses
or drains.
In order to ensure quietness of operation of the
Charnwood OLX a single pipe system is used. The oil
storage tank should ideally be positioned with the base
of the tank higher than the base of the fire. When the
storage tank is below the level of the burner then an oil
lifter must be used.
An oil shut off valve is supplied with the boiler to allow
the burner to be easily disconnected and minimise oil
spillage.
An oil filter should also be fitted outside the building,
adjacent to the oil tank.
A protective fire valve must be fitted in the oil supply
line. The phial sensor should be mounted in the burner
chamber The fire valve should have a cut out
temperature of 90°C.
Soldered joints are not permitted in the oil supply line,
and all connections must be properly sealed to prevent
oil leakage and air ingress.
Some schematic layouts of oil supply systems are shown
in Figs. 4 & 5.
The oil supply line should enter the appliance from the
left-hand side behind the side panel. The fitting supplied
with the fire facilitates this.
If the supply line is to run in front of the fireplace
surround then it will be necessary to cut a section from
the end of the bottom plate on the fire to give access
for the pipe. It is preferable to bring the supply in from
behind the fire surround.
The oil supply line may be in either 8 or 10 mm dia.
copper, dependant on the length of the run, however,
the connection on the appliance is a 10 mm
compression fitting.
.
The supply line MUST be flushed out in the following
manner:-
Connect the supply line to the compression fitting
on the service valve at the left hand side of the
appliance, but disconnect the flexible hose from the
other side of the service valve, and replace it with
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