Fike Twinflex V3 - Page 39

Twinflex V3 Control Panel Engineering and Commissioning Manual
39
False Alarms
1. Dirty or contaminated optical chambers. Replace with a new optical chamber.
2. Incorrectly set smoke detector (smoke is not suitable for kitchens, bathrooms, boiler
rooms etc., however, SM3 may be suitable outside a bathroom or kitchen but the
individual situation needs to be looked at very carefully). Incorrectly set heat detector
(HM1 is not suitable for kitchens, and HM3 should be kept for hotter areas such as plant
rooms)
3. Faulty detector. Replace with a new one.
4. Detector software crashed (generally only on 1
s
t
power up of a new system). Faults and
fires generated rapidly and at random, across whole system. Power whole system down
for five minutes in order to drain detector capacitors, so that they may reboot on power
up.
5. Ensure that the Optical Chamber is installed when the system is powered up, or a fault
condition will be generated. This could translate into a false alarm, depending on the
state of the detector.
General Faults
1. Sounder fault led – this only activates for a fault on the conventional sounder circuit so
check for O/C, S/C and 4k7 EOL resistor
2. Remote Fire Output fault led – this only activates for a fault on the Remote Fire Output
so check for O/C, S/C and 4k7 EOL resistor. Check also that the relay used has the
correct polarisation and suppression diodes installed
3. System Fault LED – This will light after a CPU reset and will be cleared by a ‘silence
and reset’ at AL2. If this does not clear the fault then reprogram all panel settings to a
different value and back again (ie. no of zones to 2, then back to 3) in order to re write
all the settings to memory. This will clear the fault
4. Power fault flashing (mains fault) – Check that the 230V AC mains supply is live and the
fuses are healthy.
5. Power fault continuous (battery or charger fault) – Check that the correct batteries are
installed, the fuse has not blown and that the mains supply is live
6. Earth fault. One of the circuits is connected to ground. Remove them one at a time until
the relevant circuit is found, following which an electronic test meter may be used to
track the problem.
7. All lights on – possibly water in a detector.