Keypad selectable parameters, non-recycle operation, modulation, open/closed damper proving, fuel selection switch, valve proving, low gas pressure check (active high), Burner On/Off through Keypad, 4 second FFRT

Keypad selectable parameters, non-recycle operation, modulation, open/closed damper proving, 4 sec FFRT, Unpowered inputs provide indefinite hold, pilot hold, revert to pilot from auto

Keypad selectable parameters, includes 0 sec purge time, fixed 0 sec low fire start time, non-recycle operation, fixed TFI times, pilot proving, modulation, open/closed damper proving, 1 second FFRT

Keypad selectable parameters, open/closed damper proving, 10 sec low fire start time, non-recycle operation, fixed TFI times, pilot proving, modulation, 1 second FFRT

Programmer, Selectable recycle/non-recycle function, TFI timing, purge timing, prove open at start, and post purge (0 to 90 seconds)