hours. This excessive recycling can reduce machine life. Compressor recycling due to extremely low loads should be reduced. To reduce compressor recycling, use the time schedule to shut the machine down during low load operation or increase the machine load by running the fan systems. If the hot gas bypass is installed, adjust the values to ensure that hot gas is energized during light load conditions. Increase the RECYCLE RESTART DELTA T on the Service1 table to lengthen the time between restarts.
The machine should not be operated below design minimum load without a hot gas bypass installed on the machine.
Safety Shutdown
A safety shutdown is identical to a manual shutdown with the exception that the LID will display the reason for the shutdown, the alarm light will blink continuously, and the spare alarm contacts will be energized. A safety shutdown requires that the RESET softkey be pressed in order to clear the alarm. If the alarm is still present, the alarm light will continue to blink. Once the alarm is cleared, the operator must press the CCN or LOCAL softkeys to restart the machine.
