Edge [ii] Controller Operation Manual
SECTION 7
– UNIT STATUS
OMM-139_E
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7.1.4 Spark Cleaning
1. The
Spark Cleaning Timer
begins, typically for 10 seconds.
Figure 7.1.4: Ignition Sequence - Screen 4, Spark Cleaning
2. The
Valve Position Out
and
Blower Voltage
continue from the
Purging
sequence.
3. The
Spark Current
(amps draw from spark across igniter) is displayed. If this value goes
outside the set threshold range (typically 0.1 to 0.4 A), the
Spark Cleaning
rectangle turns
red and
Spark Current Fault
is displayed.
4. Upon expiration of the
Spark Current Timer
, if the spark current remains within range, the
Spark Cleaning
rectangle turns green and the system progresses to the
Ignition
trial.
7.1.5 Ignition
Figure 7.1.5: Ignition Sequence - Screen 5, Ignition
1. The screen now displays the following additional parameters:
a)
Flame Strength
– Remains 0 until the flame sensor(s) senses flame, then displays
the flame strength between 0-100%. A flame strengths less than 70% will lead to flame
loss.