CVGF-SVU02B-E4
28
Unit Control
Panel (UCP)
Table 1. A general description of the top level modes is show in the following table.
Top Level Mode Description
Stopped Unit inhibited from running and will require user action to go to Auto.
Run Inhibit Unit inhibited from running by Tracer, External BAS, or an Auto Reset diagnostic.
Auto Unit determining if there is a need to run.
Waiting To Start Unit waiting for tasks required prior to compressor start to be completed.
Starting Compressor Unit is starting compressor.
Running Compressor is running with no limits in effect.
Running – Limit Compressor is running with limit in effect.
Preparing To Shutdown Unit is closing inlet guide vanes prior to compressor shutdown.
Shutting Down Compressor has been stopped and unit is performing shutdown tasks.
Figure 15.
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