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EXPERT 2V2SA
12.
MONITORING
FUNCTIONS
12.1.
Alarms
The alarm output is activated when an
abnormal situation occurs. Each triggered
alarm is logged in a history menu and must
be acknowledged by the user. The alarm
conditions are as follows:
- Defective temperature probe;
- Defective outdoor probe;
- Defective humidity probe;
- Defective static pressure probe;
- Hi/Low/Critical temperature;
- Clean mode low temperature;
- Water spill alarm;
- Hi/Low Water usage.
When an alarm is active, its respec-
tive pilot light turn on; when an alarm
is no longer active but has not been
acknowledged by the user, its pilot
light flashes. Refer to the following
section of this manual to acknowl-
edge the alarms.
Another alarm situation occurs when power
to controller fails. In this case, the alarm relay
is activated.
46
EXPERT 2V2SA, rev.10
12.1.1. Managing the Alarms
The controller has an alarm monitoring menu
which contains a list of all alarms that are
currently active and a list of all alarms that
are no longer active but that have not been
acknowledged yet.
1. From the main menu, select: ALARMS
[MONITORING].
Active Alarms
Water Spill
The first screen shows the active alarm
conditions. If there is more than one ac-
tive alarm, the alarm messages will be
displayed in turn.*The message "No Alarm"
is displayed if there is currently no active alarm.
2. Press the down-arrow key once to select
the alarm log. All unacknowledged alarm
conditions are displayed in turn (unac-
knowledged alarms represent the alarm
conditions that are no longer active).
T° Pr.1 defect
Unacknowledged
3. Set the status of the unacknowledged
alarms to "Acknowledged" to acknowl-
edge all the alarms at the same time.
Rolling active
alarm conditions
Rolling unackn.
alarm conditions
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