10. CHECKING THE MAIN OVEN CONTROLS
TO SET THE TIME OF DAY (see Fig.5)
1.
Turn on the electricity supply and ensure that the
thermostat is in the off position.
1a.
Before setting timer read important note below.
2.
Rotate the left hand clock knob to manual and back to
the time setting position.
3.
Set the time of day by rotating the right hand knob. Note
that it is a 24 hour clock.
4.
Rotate the left hand clock knob back to the manual
position.
NOTE: When setting the time of day with the selector knob in the Time setting position only, this will activate
the timer for seven seconds after selection. This means that when setting the time of day in this function the
time can only be set by using the right hand knob within a seven second period.
After seven seconds have elapsed from when the correct time of day has been set, the timer ceases to
be active and subsequent operation of the right hand knob will not change the time setting.
11. CHECKING THE MAIN OVEN
1.
Set the clock as described above, the clock is now ready for manual operation.
2.
Turn the main oven thermostat to Mk.9 and check that there is sparking from the ignition system. This
should continue until the oven burner is alight.
3.
When the oven burner lights up the sparking should cease, there should be a low gas rate at first to the
oven burner which is the flame supervision device (F.S.D.) by pass rate.
4.
When the F.S.D. phial has heated up it opens the F.S.D. valve and the main gas stream flows to the
burner.
5.
After 1 minute check that the flame covers the full width of the burner and is stable.
6.
Set the oven thermostat to Mk.2, close the oven door and check that after about 10 minutes the flame
has reduced in size.
7.
Turn off the thermostat and check that the oven flames go out.
12. AUTOMATIC OPERATION
Having set the clock up as described above, turn the left hand knob to the 'cook time' position and set the
right hand knob to show a cooking time of two minutes (0.02).
Turn the left hand knob to the 'end time' position; the time shown on the display is now the time of day with
two minutes added on. Rotate the right hand knob to add two minutes to this time to give a two minute delay.
Turn the left hand knob to the 'automatic' position to complete the programming sequence, the clock now
shows the time of day again with 'auto' glowing continuously.
Turn the oven thermostat on and two minutes after setting, the oven burner should commence its lighting
sequence.
Two minutes after the lighting sequence has started the timer should cut off the gas supply to the oven burner
and the audible signal should sound. The signal is continuous it may be switched off at any time by rotating
the left hand knob.
Return timer to manual by rotating the left hand knob to the 'manual' position.
S I G 5 1 5
49
Fig
.
5
