User Manual

Concise user manual | NANO-EN | October 1, 2022 | version 2.2 page 8
12.4 HOLD EXTINGUISHING RELEASE
By pressing the hold button at the panel or external hold button, as long this button is pressed, the
extinguishing release sequence will be halted and cause the yellow hold activated indicator flash.
Release the Hold button shall re-start the countdown release timer from programmed time.
12.5 AUTOMATIC & MANUAL RELEASE OR MANUAL ONLY MODE
The mode of the system can be toggled between Manual Only and Automatic & Manual by operating
the MODE push button on the NANO. When the system is in Manual Only mode, the extinguishant
cannot be released by the operation of automatic detectors. To switch the system from manual only
to automatic & manual, press the MODE push button for 3 seconds. Return, press the MODE again.
12.6 EXTINGUISHING RELEASE
When a fire emerges, press both front extinguishing release pushbuttons, this will trigger an alarm.
The fire extinguishers will be released, depending on the DIP switch (time) settings.
13 LED INDICATORS
The NANO has 3 internal and 14 front
LED indicators. Under normal
condition only the green Power LED
and either the Manual Only or
Automatic and Manual LED lite.
13.1 MANUAL RELEASE ONLY
The yellow LED manual only lit the extinguishant will not be released by automatic detection.
13.2 AUTOMATIC & MANUAL RELEASE
The yellow LED automatic & manual lit. The extinguishant will be released by automatic detection
and manual release button.
13.3 POWER
Under normal conditions the NANO control panel will have only the green power on LED lit and either
the manual only or automatic & manual LED lit. Failure of the mains power or disconnection of the
backup power will cause a fault. The power LED lite differently, indicating an abnormality in the power
supply to the NANO. When starting the NANO after a power failure or an extinguishers release, the
green power LED flashes for maximal 1 minute until the system is ready and this LED lit continuously.
If the mains power supply is NOT present, the power LED flashes 1 x per second and the yellow general
fault LED lit. If the standby power supply is NOT present, the power LED flashes 2 x per second
followed by a pause of 1 second, then repeating, the general fault and internal battery fault LED lit.
When the vehicle function (DP2) is enabled, the green power LED flashes at 1 x per second when
vehicle is parked and switch to the secondary vehicle voltage.