Noby UK Noby-220iR2 2-Zone - Manual (Page 16)

Noby-220iiiiR2 Installation Manual Page 16 Software Revision1-0
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Troubleshooting
The green Power LED is not steady
Check that the mains supply is connected and switched on.
The panel will not power-up when connecting the battery
A requirement of EN54-4 is to electronically disconnect the battery when the voltage deep discharges to
10.5v. When connecting a battery it is therefore necessary to manually kick-start the system by momentarily
pressing the pushbutton marked “Batt Start”. If the panel does not start up then check the battery fuse F3
and/or the condition of the battery.
The Common Fault LED will not clear
Refer to the LED Indications (page 22) to determine the cause of the fault.
Ooops, I accidentally connected the battery the wrong way round
We've all done it at some time or other! Replace fuse F3 (T1.0A) and try again.
A smoke detector generates a fault instead of a fire
Some (older) detectors and call-points are not compatible with modern panels equipped with short circuit
fault monitoring. One remedy is to connect a resistor in series with each affected detector head - any value
in the region of 400 to 1000 ohms is suitable. Some detector bases allow spare terminals for this purpose.
Care must be exercised not to inadvertently insert this resistor in series with the main cable run, as this will
lead to other erratic behaviour.
Another work-around is to set the programmable Engineer Disablement Option: Disable Detector S/C Fault
Monitoring. In this case all detector short circuits will be interpreted by the panel as a fire condition.
There's a persistent zone fault that can't be cleared
Check all the detector heads are both present and securely located to their bases.
Check base connections, paying particular attention to correct polarity.
Check that the EOLC is fitted across the final detector.
Check that the detector bases are of the schottky diode type.
Programme the Engineer Disablement Option: Disable Detector Head Removal Monitoring. If this clears the
fault then the problem is likely to be related to one or more bad detector base/head connections. Note:
setting this option also disables o/c monitoring and is therefore not recommended as a permanent fix - the
purpose of the option is to help eliminate one possible cause of a fault.
Failing the above suggestions, it's down to the systematic process of elimination ie. relocate the EOLC to
the first device and disconnect the remaining detectors, then move onto the second device etc.. Repeat
until the fault shows up.
There's a persistent sounder fault that can't be cleared
Check that the sounders are the polarised type and compatible with conventional fire panel fault monitoring.
Check the cable connections at each sounder for correct polarity, and that the EOLR is connected across
the final sounder on each circuit.