Aqua-Hot Hydronic Heating System Shop Manual 09/04
®
SECTION 5: DIESEL-BURNER
Operational
Sequence,
continued
5.3
Operational Sequence
The
Ignition Coil
produces a high voltage spark, which is transferred
across the
Ignition Electrodes
. The incoming air-fuel mixture is then
ignited, creating combustion.
Ignition
Electrodes
Ignition Coil
Combustion
The combustion’s flame is detected by the
Flame Sensor
and the
Ignition Coil
is then
automatically switched off (no more spark
across the
Ignition Electrodes
).
Flame
Sensor
Diesel-Burner Operation,
continued
3
4
Hot Exhaust
Gases
The particular component begins to operate.
The component is currently operating.
Combustion Air
Diesel Fuel Spray
Exhaust Gases
KEY
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