Document: LT0439 Vigilant
MX1-Au
Operator Manual
Issue 1.73
23 October 2018
Page 2-1
An alarm condition occurs when a fire detection device (such as a smoke
detector or manual call point) activates.
MX1
indicates the presence of the alarm condition by illuminating the
general
FIRE
indicator and zone indicators (if fitted), through messages
on the LCD, and (generally)
by activating the building’s alarm devices
and alarm routing output to the fire brigade.
It may also activate associated equipment (which could be contained in
the
MX1
cabinet), such as smoke control systems (e.g., AS 1668 fan
controls) or fire extinguishing systems.
This chapter describes how
MX1
displays alarms and how to use the
keypad to investigate and manage alarm conditions.
The first two alarms can be viewed on the LCD at Access Level 1. To
view further alarms on the LCD, or reset or disable alarms will require
Access Level 2. See
“Operator Access Levels”, page 1-11, for more
information.
MX1
may be configured with AIF (Alarm Investigation Facility), AAF
(Alarm Acknowledgement Facility) or Alarm Delay Facility (ADF) to
reduce the chance of nuisance alarms. These facilities provide a local
indication of a fire alarm to allow investigation and cancelling of a
nuisance alarm before the fire brigade is called. AIF, AAF and ADF
alarms may be indicated on the
MX1
LCD. See
“Alarm Investigation
Facility (AIF)” on page 2-7 or “Alarm Acknowledgement/Delay Facility
(AAF/ADF
)” on page 2-10 for details.
Alarms from other sources, such as sprinkler systems, may be shown on
MX1
. Refer to
“Alarms from Other Sources” on page 2-10 for details.
In some installations smoke detector alarms may be programmed for
local annunciation only. This is called residential mode. Refer to page 2-
11 for further information.
Chapter 2
Managing Alarm Conditions
Alarm
Condition
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