
6
it is vaporised and burned at a steady and controlled
rate via gravity flow, metered by the OIL CONTROL
VALVE.
The oil flow can be controlled from minimum to
maximum or any setting in between determined by
where you set the oil flow control knob.
Air for combustion
is drawn into the vaporizing pot by the natural action
of the negative pressure in the chimney and to allow
the chimney to work correctly it is essential that
there is adequate, unrestricted ventilation into the
area where the appliance is situated and the flue
system is warm enough to pull air through the burner
in the appliance.
The amount of vapour that can be successfully burned
is directly proportional to the amount of air that the
chimney can draw into the pot and so to achieve
adequate combustion a balanced and appropriate flow
of both oil vapour and air is required.
CONTROLS.
The output of the appliance is regulated by the amount
of oil for vaporization which is allowed to go into it and
this function is controlled by the -:
OIL CONTROL VALVE (O.C.V.), which is situated at
the right hand side of the appliance, behind the right
hand side panel.
Turning the knob anti clockwise controls the oil flow.
The knob is located at the top right hand side of the
appliance and is calibrated from off position (fully
clockwise) through 6 graduations to maximum.
Controls for the appliance will vary, depending on
which valve is fitted to it.
The valve could be an OCI ships valve or a Toby valve
and this should be specified with the order for the
appliance.
The control for the dry appliance comprises-:
1. Oil flow control only.
The boiler version has extra controls which are-:
1. Oil flow control
2. Thermostat control
3. Safety Stat reset control
The Toby oil control valve only is used on boiler
appliances. This valve has a built in, non electric,
modulating thermostat control, which will put the fire
on to low fire when the target temperature has been
achieved.
In addition to this there is also a similar safety stat,
which will shut the burner down, should the water
exceed 80 deg C.
The safety stat re set control is lifted to reset the
valve, should the stat trip.
The Toby valve has to be tripped into action by lifting
the trip button at the left hand side of the control
panel.
The flow of oil into the pot can be adjusted via the
knob on top of extension rod rising up from the oil
control valve.
With the increased flow of oil, extra heat is
generated, which in turn stimulates the chimney to
work harder and consequently draw more air into the
pot to maintain an adequate fuel air ratio.
2
2.
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SA
AF
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.
Take care to make sure that safety and ventilation
issues are adequately addressed.
FUMES
When the appliance is first ignited, it may be
necessary to warm the chimney and the base of the
pot with a propane gun; this will get the cold air moving
in the stack and allow the burner to draw in.
Under non starting cold chimney situations, here are
the main causes of fume or smoke to leak from the
appliance.
• The chimney is blocked.
• There are too many bends in the chimney.
• The above deck chimney extension is not high
enough.
• The boat is moored in a position near to high
buildings or trees and downdraughting is
occurring.
• The chimney is not airtight.
FIRE.
Fire can be caused by a variety of potential danger
points and because of the space limitation on boats;
this risk is ever present and must be adequately
assessed.
The main danger is the effects of heat from the
appliance on combustible materials and boat occupants.
Make sure that all combustibles are adequately
protected from the effects of heat radiation.
The appliance must stand on a fireproof base as per
the distance from combustibles table.
On appliances using the coal kit, the floor in front of
the appliance must have suitable fire protection
extending a minimum of 100mm in front of the
appliance.
The appliance has built in rear heat shields and when
the appliance is positioned in a suitable location there
must be a space of 25mm clearance beyond the outer
heat shield, to allow air to rise up and around the heat
shields.