SCS Controller - Faults and Alarms
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      AL21 - How the 'Max Compressor Starts' alarm works

      If the cooler compressor repeats over temperature events equaling the high temperature lockout count within a period you set, the SCS Controller can switch off the compressor and trigger an AL21 alarm.

      Review the fault logic for the 'Max Compressor Starts' alarm in the following graph:

      Max Compressor Starts alarm