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13.1
Recheck Control Settings
Now that all the ceramic fuel effects are in position, the control operation must
be fully rechecked.
13.1.1
Make sure that the isolating valve at the inlet elbow is open and that the
electrical power supply is on (the indicator light should glow).
13.1.2
Press and hold in the “on” switch. Within two seconds, the Fan motor
should start and the indicator light should go out.
13.1.3
Release the “on” switch. The fan should continue to run.
13.1.4
Depress the control knob and turn anticlockwise partially towards the
“PILOT/IGN” position until some resistance is felt. Keep depressed at this
position to purge air from the system then, while keeping it depressed, turn
fully to the “PILOT/IGN” position. A spark should be generated at the pilot
while turning. The spark should ignite the pilot. Check that the pilot flame is
visible - See section 12.5.3.
13.1.5
When pilot ignition has been achieved, keep the control knob depressed
for approximately ten seconds to allow the thermocouple probe to warm up and
then release it. If the pilot does not remain alight, ensure that the pilot orifice is
clear.
13.1.6
When the pilot is alight and stable, partially depress the knob and turn to
“LOW”. The pilot should then light the main burner at its low setting. There
may be a delay of up to four seconds between the pilot lighting and ignition of
the gas at the main burner. This is normal and is due to the time required to fill
the main burner compartment with sufficient gas for ignition.
13.1.7
When the burner is operating properly, partially depress the knob and
gradually turn it anti-clockwise. The burner flames should gradually increase
until the knob reaches the “HIGH” position.
13.1.8
Partially depress the control knob and turn back to “PILOT/IGN”. The
main burner flames should be extinguished but the pilot should remain alight.
13.1.9
Partially depress the control knob and turn to “OFF”. The pilot should be
extinguished
.
13.1.10
Press the “off” switch to turn off the fan (the indicator light should
glow).
P A R T 1 3 :
F U L L O P E R A T I N G C H E C K S
