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Installation and Operation Manual
General Trouble
Sensing Error
Contamination
Please refer to the Trouble Conditions section for more detail on each event type.
Manual Station Response
Addressable manual stations may be intermixed on the circuit with proper response programmed into the
control panel.
Drift Compensation
The Drift Compensation is built into a compatible detector and is not performed by the panel. Drift
compensation automatically adjusts for gradually increasing effects of dust and other accumulations of dirt in
the detectors. It will adjust the thresholds to compensate for a detector going dirty according to the gradual
change in the normal clean air value received. When it can no longer compensate for an increasingly dirty
detector, a dirty detector trouble (Contamination trouble) is indicated for that device.
Alarm Verification
The Alarm Verification function is supported by this panel. One typical alarm verification phase can be divided
into 2 periods. The first period is a retard period in which no alarm reports on the Fire Alarm Control Panel
(FACP). The second period is a confirmation period in which alarm reports on the Fire Alarm Control Panel if a
device is in alarm status. The detail alarm verification phase is illustrated in Figure 32.
A ‐ Smoke detector goes into alarm. (LED on device turns to steady on)
AB ‐ Retard Period: Fire Alarm Control Panel senses detector in alarm and delays alarm signal for 50s. During
this period, no alarm event reports on the Fire Alarm Control Panel.
BC ‐ Confirmation Period: Detector is operational for alarm at point B. If the detector is still in alarm at point B,
the Fire Alarm Control Panel will report an alarm. If the detector is not in alarm, the system returns to standby.
If the detector re‐alarms at any time during the confirmation period the Fire Alarm Control Panel will alarm.
The period length is 60s.
CD – Restart next alarm verification period if new alarm occurs.
Figure 32 Alarm Verification
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