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6.4.4.1 Unit #1 Filter Alarm
If a Filter becomes too Dirty, the Shelter Alarm indicator on the main screen will flash, the Unit
#1 Filter Status will indicate “Fault Alarm” and an alarm event will be logged in the alarm log. To
acknowledge the alarm click the Alarm Action button . Pick the Acknowledge This Alarm & Clear COS
Alarm item and click OK. This resets the Shelter Alarm indicator and allows it to capture and indicate
any new incoming alarms. Repair personnel should be dispatched to the Site to service the filter in #1
Unit. This is a Self Clearing Alarm. Once the Filter has been replaced and the dirty filter switch in the
unit reset, the Alarm will be removed.
6.4.4.2 Unit #1 Compressor Alarm
If a Compressor failure occurs, the Shelter Alarm indicator on the Main Screen will flash, the
Unit #1 Compressor Status will indicate “Fault Alarm” and an alarm event will be logged in the alarm
log.. To acknowledge the alarm click the Alarm Action button . Pick the Acknowledge This Alarm &
Clear COS Alarm item and click OK. This resets the Shelter Alarm indicator and allows it to capture and
indicate any new incoming alarms.
Repair personnel should be dispatched to the Site to repair the Compressor. Acknowledgment of
the failure does not clear the alarm. Once the Compressor has been fixed, the alarm should be cleared to
allow the Compressor to resume normal operation. The alarm can be cleared from the Unit #1 Override
tab. See Section 5.3-2.1. Clearing the Alarm before the Compressor can be fixed will cause the
Compressor to fail again and another Shelter Alarm to be sent
6.4.4.3 Unit #1 Blower Alarm
If a Blower failure occurs, the Shelter Alarm indicator on the Main Screen will flash, the Unit
#1 Blower Status will indicate “Fault Alarm” and an alarm event will be logged in the alarm log.. To
acknowledge the alarm click the Alarm Action button . Pick the Acknowledge This Alarm & Clear COS
Alarm item and click OK. This resets the Shelter Alarm indicator and allows it to capture and indicate
any new incoming alarms.
Repair personnel should be dispatched to the Site to repair the Blower. Acknowledgment of the
failure does not clear the alarm. Once the Blower has been fixed, the alarm should be cleared to allow
the Blower to resume normal operation. The alarm can be cleared from the Unit #1 Override tab. See
Section 5.3-2.1. Clearing the Alarm before the Blower can be fixed will cause the Blower to fail again
and another Shelter Alarm to be sent.
6.4.4.4 Zone Temperature Alarm
If the Zone Temperature exceeds the High or Low Alarm Temperature setpoints, then the
Shelter Alarm indicator on the Main Screen will flash. A High or Low Alarm will be shown in the
Alarm status textbox on the Alarm Screen. The Shelter Alarm indicator on the Main Screen will flash
until the Alarm has been acknowledged or the Zone Temperature is no longer in Alarm. Once the alarm
has been acknowledged, the Shelter Alarm will no longer flash for the Zone Temperature Alarm. This