Brooks Firetracker FT128 CIE - Smoke Exhaust; Spill Fan; Figure 10 Supply Air Fan Timing Sequence; Figure 11 Smoke Exhaust or Spill Fan Timing

Technical / Programming Manual
FT128 Rev 2.2
35
Figure 10 Supply Air Fan Timing Sequence
When the smoke is no longer present in the supply air duct, a time delay (45-75 seconds)
starts, the fan remains in the shutdown mode until the time delay is elapsed, then the duct
detector resets and causes the fan to restart. The presence of smoke in the supply air does
not initiate a Fire Brigade TX signal or any other alarm output (type, quiet alarm). The
Occupant Warning System does not sound. Only the “FIRE’ and general alarm indicators
will be flashing and a quiet alarm message displayed.
Notes related to supply air fan applications:
1. Only analogue smoke detectors can be used in supply air fan applications.
2. The detector used in supply air fan applications must be selected as a “Quiet
Alarm” i.e. check box in EBLWin program is ticked.
3. One detector, several detectors or a zone can be programmed to control the
supply air fan.
4. A time signal period output must be configured in EBLWin as shown in section
5.1.3 step 6 to set up the post timing which normally is 60 seconds.
5.1.7 Smoke Exhaust / Spill Fan
Figure 11 Smoke Exhaust Or Spill Fan Timing
The smoke exhaust fan is normally controlled by general alarm, single device or a zone.
Both analogue detectors and conventional zones can be configured to control the fan.
Standard time signal period output can be used.
Typical AS1668 fan example is shown in Figure 12 below