Normal operating mode
Check the oil pressure on the gauge and
adjust if necessary for the required burner
output.
From a suitable test point on the boiler, or in
the flue, a smoke reading should be taken
to ensure clean smoke-free combustion.
With the aid of a flue gas analyser, and by
making adjustments to the air damper
control, the combustion can be set for
maximum efficiency (see diagram).
The air control rotates around a central
fixing screw that passes through both the
control device and air inlet housing. This
spring loaded screw is pre-tensioned in the
factory but if the adjustment appears too
loose or tight then it can be pre-tensioned
to suit.
A CO
2
level of around 11.0% - 12.0% should be achievable.
If at any point during normal operating mode the photocell loses sight of the
flame the control box will attempt to re-establish the flame. The oil valve will
close and the ignition transformer will be powered. A pre-purge will be carried
out before the valve is re-opened and the fuel is released. If successful the
burner will continue in operating mode; if not the control box will go into
lockout mode.
After commissioning a safety check must
be carried out to ensure the correct
operation of the flame detection.
During normal operation the photocell is to
be removed and either covered with a
clean rag to prevent any light from being
sensed, or for the cell to be unplugged. As
soon as this happens the burner will
attempt to re-establish the flame
IMPORTANT: The photocell side opening
must be pointing at the flame for reliable
operation.
Turn air control
CLOCKWISE for MORE AIR
o
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