Honeywell On-Off Primary Control with Prepurge and Postpurge, Full Function Primary Burner Control for Automatically Fired Gas, Oil, Coal or Combination Fuel Single Burner Applications, 120Vac, Interrupted Pilot, Dynamic AirFlow Check, 10 Second Main Flame Establishing Period, 4 Second or 10 Second Pilot Flame Establishing Period, Delayed Main Valve, 60 Second PostPurge, Selectable Interlocks, Nonvolatile Memory, Selectable Recycle or Lockout on Loss of Airflow or Flame, -40-140 Degree Ambient Temperature Range, Blinking Fault Code LED, Early Spark Termination when Flame Sensed