9.3 Beacon and Sounder Extension
A beacon and sounder extends any second stage temperature alarm or fatal
error alarm. Fixing the reason for the alarm condition automatically stops the
beacon / sounder.
A switch is also provided to mute the sounder at any time.
NOTE
No reminder is given to show that the sounder is muted when the system is
healthy.
Recurrence of subsequent alarm conditions will cause the beacon to light
up but will not create an audible alarm.
9.2 System Warning Messages
These messages also warn of an abnormal condition.
Table 9-1 System Warning Messages
Warning Message Abnormal Condition
FAIL The zone under test has failed.
MAN The control zone is in Manual mode.
S #
The zone is slaved to another control zone, where #
represents the number of that zone. For example, S 2 means
the zone is slaved to Zone 2.
The same power is being sent to both zones.
In the Display screen, the setpoint displayed on the selected
zone is the same as that on the slave zone.
TEST Displayed when the zone is in Diagnostic Test mode.
WARN
Displayed if a temperature interaction is found between zones
during a test.
9-2
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TROUBLESHOOTING
M2+ Controller User Manual
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