Check Rotation - Carrier PC211 Start-Up, Operation And Maintenance Instructions Manual

2. Look at the default screen on the LID: the Status message in the upper left-hand corner will
show a ''Manually Stopped'' message. Press CCN or Local to start. If not, go to the
Schedule screen and override the schedule or change the occupied time. Press the LOCAL
softkey to begin the start-up sequences.
3. Check that chilled water and condenser water pumps energize.
4. Check that the oil pump starts and pressurizes the lubrication system. After the oil pump
has run about 11 seconds, the starter will be energized and go through its start-up
sequence.
5. Check the main contactor for proper operation.
6. The PIC will eventually show an alarm for motor amps not sensed. Reset this alarm and
continue with the initial start-up.

Check Rotation

1. Engage the main motor disconnect on the front of the starter panel. The motor is now ready
for rotation check.
2. After the default screen Status message states ''Ready for Start'' press the LOCAL softkey;
start-up checks will be made by the control.
3. When the starter is energized and the motor begins to turn. Check for clockwise rotation
(Figure 34).
If Rotation Is Proper
, allow the compressor to come up to speed.