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The ignition sequence follows a control logic to ensure
safe and effective ignition. The ignition sequence is as
follow:
1. The water temperature must be low enough for the
furnace to shift into demand mode.
2. The fan will start and operate at the ignition fan
speed and the Firestar control will send voltage to
the igniter relay.
3. The air proving switch will close, completing the
ignition relay control circuit.
4. The electric ignitor will warm up and heat the air
blowing across it into the burn chamber.
5. The auger will cycle periodically to feed the required
amount of fuel into the burn chamber, and to agitate
any pellets already present in the burn chamber.
6. The ignitor will operate until the burn chamber
reaches a temperature that is high enough to sustain
itself, or for ten minutes, at which time the ignitor
will turn off.
SECTION 4 – IGNITOR OPERATION
Ignition Sequence
Section 4 - Ignitor Operation
