Unoccupied Failure Display - Macurco DVP-120C User Instructions

Macurco DVP-120C Manual
•
Any configured channel wiring is open or shorted.
• Internal controller board problems are detected.
The display will cycle through all trouble indications, at five seconds per display. Pressing any key (except HUSH) will
advance the display to the next trouble indicator.
If an external horn and/or strobe are connected and configured to signal a trouble condition, they will also sound
when a trouble condition occurs, after a delay, if that configuration option is selected.
When the HUSH key is pressed, the internal buzzer will be silenced for eight (8) hours. If the horn or strobe turn on
delays have not finished, then they will also be silenced. If the delays have finished, the HUSH key must be held for
three (3) seconds in order to silence the horn and strobe.
When all indicators have been silenced, the display will show that trouble indications have been silenced for eight
hours. After any key is pressed (or five seconds), the display will return to normal mode.

4.8 Unoccupied Failure Display

During unoccupied time, DVP-120C compares the readings of all CM-6 and TX-6-ND detectors connected
(irrespective of assigned zones), and if any detector is more than 15ppm (for CM-6) or 1.5ppm (for TX-6-ND) above
or below the average of all detectors (of same type) for longer than 4 hours, the detector has failed. This failure is
referred to as Unoccupied failure in rest of the manual. (Refer to "Section
process to define occupied time. Time outside the defined occupied time are unoccupied time.)
DVP-120C displays following message for unoccupied failure. If more than one detector fails for unoccupied time,
then display scrolls every 5 seconds period to show all failed detectors.
Unoccupied failure triggers alarm condition in the panel. Hence Alarm/Warning LED will be red. Buzzer, Horn and
Strobe will be energized based on Alarm Signal Configuration in configure signal menu, see section
Signals Submenu menu. Alarm due unoccupied failure have lower priority than gas alarm.
If unoccupied failure detector is part of a zone, then relays assigned to the zone gets activated.
When the HUSH key is pressed, the internal buzzer will be silenced for 4 hours. If the horn or strobe turn on delays
have not finished, then they will also be silenced. If the delays have finished, the HUSH key must be held for three
(3) seconds in order to silence the horn and strobe.
REV – 1.0
T r o u b l e
C O S e n s o r
Figure 4-10 Trouble display
T R O U B L E S I L E N C E D
F O R 8 H O U R S
Figure 4-11 Trouble Silenced message
S e n. F a i l e d
C O S e n s o r
Figure 4-12 Unoccupied Sensor Failed
[34-8708-4770-8 ]
0 2
4.13.2.6 Configure Occupied
U n o c
0 2
Time" for
4.13.8 Configure
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