Structure and function
Function
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Building Technologies
A6V10305793_m_en_--
Fire Safety
2016-02-15
3.3.8 Connection for external alarm indicators
Operating the point detector on the C-NET:
Two external alarm indicators can be connected to each point detector.
On the C-NET, it is possible to connect external alarm indicator to any point
detector. The trigger for activating the alarm indicator can be programmed at the
control panel.
Instead of an optical alarm indicator that flashes in the event of an alarm, the
sounder base is provided with an acoustic alarm indicator.
Operating the point detector OOH740 in collective mode:
The external alarm indicator is activated in the event of an alarm. Two external
alarm indicators can be connected to the point detector OOH740.
See also
2
2
Connection diagram, addressed [
2
Connection diagram, collective [
3.3.9 Renovation mode
When operating the point detectors on the C-NET, individual detectors can be set
specifically to renovation mode on the fire control panel.
Select renovation mode if major work is being carried out in the room and large
volumes of dust or aerosols are being produced.
In renovation mode, the neural fire detector and the heat detector only trigger an
alarm when the temperature exceeds 80 °C for 20 seconds.
The wide-spectrum smoke detector does not respond to smoke in renovation
mode. When a temperature of 80 °C is reached for a period of 20 s, the wide-
spectrum smoke detector does however also send an alarm to the control panel.
Renovation mode cannot be selected in collective operation.
3.3.10 Test mode
Operating the point detector on the C-NET:
For testing purposes the point detectors can be set to test mode. In test mode the
point detectors react faster and with a higher sensitivity level.
Physical testing:
●
The optical function part on the neural fire detector can also be tested with the
test gas REF8 or REF8-S.
●
The heat sensors of the neural fire detector can be tested with the following
accessories:
– Hot air fan
– RE7T Solo461 heat detector tester kit
●
The CO sensor can be tested with the test gas REF8-C.
