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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.