In the event of a
the chiller common alarm output will raise an alarm and the chiller output module will start the chiller shutdown procedure. The sequencer strategy will remove the chiller from its line-up and will start a backup chiller.
When the alarm condition does not longer exists, then the alarm returns to normal and the chiller common alarm output is also reset. Depending on the manual/automatic reset function in the sequencer strategy module, the chiller becomes directly available for operation (automatic).