Carrier 17/19EX - Manual (Page 183)

based on kW rate or temperature rate. It is accessed on the Equipment Configuration menu
Config screen (Table 2, Example 5 ).
9. On open-drive machines, the oil pump will be energized once every 12 hours during
shutdown periods to ensure that the shaft seal is filled with oil.
To Stop the Machine
1. The occupancy schedule will start and stop the machine automatically once the time
schedule is set up.
2. By pressing the Stop button for one second, the alarm light will blink once to confirm that
the button has been pressed, then the compressor will follow the normal shutdown
sequence as described in the Controls section. The machine will not restart until the CCN or
LOCAL softkey is pressed. The machine is now in the OFF mode.
Note: If the machine fails to stop, in addition to action that the PIC will initiate, the operator
should close the guide vanes by overriding the guide vane target to zero to reduce
machine load; then by opening the main disconnect. Do not attempt to stop the machine
by opening an isolating knife switch. High intensity arcing may occur. Do not restart the
machine until the problem is diagnosed and corrected.