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372001-24 Rev. B
seconds.
• Press F1, “CHG” and enter 1, 2, 3, or 4 (for 3.8) to change the setting.
If only one IDD detector is connected to both channels (refer section 2.5.2 ), both channels must be set
for identical FFRT delay.
• Flame failure occurs following the FFRT delay if the detector’s signal falls and stays below its programmed
dropout point.
• Flame failure occurs immediately if the system fails a self-check. When a self-check is performed, the
continues. Flame-on status can be re-established if the detector(s) meet the pick-up logic requirement.
user enters 4, the system will display and use 3.8 seconds for the FFRT delay. This is done to keep
the response time safely less than 4 seconds under all conditions.
settings.
set identical FFRT and Self-Check Cycle times on both channels.