STULZ CyberRow DX Series Installation, Operation & Maintenance Manual
4.3.2 Alarms
As programmed into the system controller, an alarm
condition activates the summary alarm logic which
illuminates the alarm key and energizes an audible
alarm. Some alarms are programmed by the factory
to automatically shut down the A/C unit until the alarm
condition is remedied and the alarm is cleared by
pressing the alarm key. Some of the alarms that may be
enabled by the factory are listed in Section 4.5.3.
4.3.2.1 Summary
Alarm
A summary alarm will activate when the controller senses
any programmed alarm condition. This illuminates the
alarm key and if the option is selected, a N.O./N.C.
summary alarm contact may be energized for remote
monitoring of alarm conditions. If certain critical summary
alarm conditions are detected, they will cause the A/C
unit to shutdown.
4.3.2.2 Customer
Alarms
A customer provided digital (on/off switching) alarm
sensor may be connected to terminals provided in the
electric box. This alarm input may be for any site specifi c
alarm condition the user wishes to monitor that may or
may not be provided in the standard controller alarms
menu; i.e. Gas Detection, Intrusion Alarm, etc. Upon
detection of a customer alarm, the controller will activate
the summary alarm contact and display a screen mes-
sage indicating a customer alarm message. The screen
message "
Customer Alarm 1
" (default) will appear
in the controller display or the user may reconfi gure the
controller to display any alpha-numeric message desired,
up to 20 characters long, in the Service>Options>Custom
menu loop (see Section 4.5.5.5.5).
4-9
4.3.2.3 Custom
Alarms
A custom (user confi gured) alarm is activated upon
detection of one or more programmed alarm conditions
as set by the operator in the Service>Options>Custom
menu loop (see Section 4.5.5.5.6). When a custom alarm
condition is detected, a summary alarm is signaled and
a designated set of N.O. & N.C. Custom Alarm relay
contacts may be energized to provide remote indication
of the specifi c alarm condition(s).
For example you may want to be notifi ed when a change
fi lter alarm is annunciated, giving notice that the air
fi lters need to be cleaned or replaced. That way you are
alerted before the fi lters are so badly clogged that airfl ow
is reduced to a point where a "Loss of airfl ow" alarm is
activated.
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